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GRANDVIEW S-10811
Grand View 5-10811 .,, Municipality of Anchorage Development Services Department Building Safety Division MEMORANDUM DATE: 08/16/01 TO: Jerry T. Weaver, Jr., Platting Officer, CPD FRO1111: mes Cross, PE, Program Manager, On -Site Water &Wastewater SUBJECT: Comments on Cases due August 17, 2001 The On -Site Water & Wastewater Program has reviewed the following cases and has these comments: S-10542-2 Mulder Subdivision—Time Extension. No objections. S-10804 Crestview Village Addition #1. No objections. S-10809 ATU No objections. S-10810 John Wayne No objections. S-10811 Grand View Subdivision. Information to satisfy the requirements specified by AMC 15.65 and AMC 21.15 must be submitted for each lot of this proposed subdivision. This information must include, but may not necessarily be limited to: 1. Soils testing, percolation testing and ground water monitoring results must be submitted on a municipal soils log form. Ground water monitoring must be conducted during high ground water season in either the fall (October) or spring (April -May). 2. Areas designated for the original and replacement wastewater disposal system sites (reserve areas) must be identified and must meet all criteria specified in AMC 15.65 including slope and slope setback requirements. Test holes must be labeled on the site plan. Supporting documentation on water availability must be provided. This documentation shall include an hydrologist's report stating the expected quantities of groundwater available to this subdivision and the effects of the appropriation of water to serve this subdivision on adjoining properties. S-10812 Crowberry Subdivision. No objections. S-10813 Safar Subdivision. No objections. 01/11/02 11:40 FAS 907 342 4220 Coanunitr Planning + CROSS e021/022 Plawng Board Summary o[AMion April S. 2002 Page 15 district may be altered from time to time in Section accordance with the provisions 21.60.020 (Anchorage Municipal Code). All construction activities district istsandall conform o the land use Within the flood hazardrd requirements of Chapter 21.60 (Anchorage Municipal Code) b. "Portions of this subdivision work within the wetlands A wetlands. Any area requires a permit from the Army Corps of Engineers." C. "Tiler, shall ha lacement Of structures or fences g or filling, p within stream protection setback." d. -,,,is subdivision is located in seismic zone 4. Engineered foundations shallbe required.- 4. equired "4. Resolving the need for footing drains and footing stubouts with Project Management and Engineering. 5. Providing a stream maintenance and protection easement for Fish Creek per AMC 21.45.210 and resolving the width with Project Management and Engineering. 6. Providingorcement that the cidsting ncee alongevidence the north property d Use line comPlies with height requirements of AMC 21.45.110.A. 7. Correcting drafting errors on preliminary plat. 8. Providing an as -built to Code Enforcement of all eadsting structures to ensure all structures meet the applicable zoning setbacks c and at �� trip flex an Lot SA has been permanently C -_-j.- 8-10811 Grandview Subdivision Postponed to the May 1. 2002 Platting Board meeting at the request of the petitioner. 06/10/02 14:42 FAX 907 347 4220 Community Plannins » CROSS ®oos/009 Platting Board Summary of Action June 5. 2002 Page 4 9. Providing the covenants and restrictions for review and approval by the Planning Department, which address: reciprocal access responsibilities and liabilities, landscaping maintenance, and snow removal/storage. 10. Submitting an as -built survey, parking layout and landscape plan to land Use Enforcement to verify compliance with yard setbacks, AMC 21.15.0 0. 21.45.090. 21.40.180.N and (if app 21.45.080.W.10. E. OLD BUSINESS F. NEW BUSINESS 1. Public Hearings S " 6=10811 Grandview Subdivision C; Postponcd indefinitely at the request of the petitioner. b. S-10424-3 McKay Subdivision — Time Extension Approval of the second eighteen -month time extension to October 21. 2004. c. S-10903 Mamma Acres Subdivision — with Vacation Note. As application for partial vacation of the 20 -foot uttlity easement uas neither submitted nor advertised. this vacation indicated on the preliminary plat could not be addressed A. Denial of the request to vacate a 300' x 50' portion and a 300' x 30' portion of East 140th Avenue. B. Approval of the plat subject to: 1. Resolving utility easements. 2. Submitting the following to Project Management and Engineering: 03/03/02 15:57 FAX 907 343 4210 community Planning_ + CROSS IZO03/020 Platting Board Su*unary of Action May 1. 2002 Page 2 4. Other E. OLD BUSINESS F. NEW BUSINESS 1. public Hearings Eg - Saos11 Grandview subdivision l postponed to June 5. 2002 Platting Board meeting for review t,by the Geo -Technical Commission. l b. S-10872-2 Hincaid Estates Subdivision Postponed to the May 15, 2002 Platting Board meeting due to an advertising error. c. 5-10890 Barrett Estates Subdivision - with Variances Returned for redesign to resolve a second access to the proposed subdivision with Alaska Department of Transportation and the Municipal Traffic and Fire Departments. The public hearing should not be rescheduled until the information is received in sufficient time to route to reviewing agencies and the Scenic Park Community Council for review and comment. d. 5-10893 Ratcliffe Subdivision -Vacation only eersof tm Road Rsry subject Ming a suitable replat within18 nths. C. 5-10899 Fire Lake Subdivision - with Variances Postponed at the request of the petitioner to resolve the need to amend the zoning special limitations- plat to be resubmitted upon completion of the rezoning by the Planning and Zoning Commission and the Assembly. 02/07/02 15:32 FAX 907 343 4220 Platting Hoard Summary of Action February 6. 2002 Page 3 A 4. Other E. OLD BUSINESS F. NEW BUSINESS Community Planning • CROSS IZO04/015 Seismic Map and has high ground failure susceptibility in the event of a seismic occurrence' b. "Vehicular access to West 5th Avenue is limited to the e2dsting access until such time as the Alaska Department of Transportation and Public Facilities approves new access points ' to site improvements." C. `The property is within the 390 -foot MSL contour of the Merrill Field Airport Height Zone. Development of this property is subject to the provisions of AMC 21.65." Making the following drafting changes: a. Please add "Wj" to 51h Ave. of detail map. b. Clarifying the lot designations to title block. 1. Public Hearings a. 5-10811 Grandview Subdivision Postponed to the April 3. 2002 Platting Board meeting at the request of the petitioner. The Platting board approved a motion to move hors F.2.b and F.1.d to the and of the agenda. C. 8.10887 Third Addition to the Anchorage Townsite. N Block 15 —with Vacation Postponed indefinitely at the request of the petitioner. MUNICIPALITY OF ANCHORAGE COMMUNITY PLANNING AND DEVELOPMENT �a P.O. Box 196650 Anchorage, Alaska 99519-6650 PRELIMINARY PLAT APPLICATION OFFICE USE RECD BY: A. Please fill in the information requested below. Print one letter or number per block. ��ss 1. Vacation Code 2. Tax Identification No. 3. Street Address k9 10 8 11 SEP n 10 Zia (06 4. NEW abbreviated legal description (T1 2N R2W SEC 2 LOT 45 OR SHORT SUB BLK 3 LOTS 34). 5200$ 5. EXISTING abbreviated legal description (T12N R2W SEC 2 LOT 45 OR SHORT SUB BLK 3 LOTS 34) full legal on back page. 6. Petitioners Name (Last - FTt) �r..nnann�r�nnnnnnnn nnnnnn�nnnnnnnnnnnnn 7. Petitioners Representative Address !440 W UOSOO M 1 03 City f,",ti t Lh /I /1 �� State Phone # SbZ — `J Z q zip 6. Petition Area Acreage 9. Proposed 10. Existing 11. Grid Number 12. Zone Number Lots Number Lots RIE FTfl LH I ELLLLJ I S 13. Fee S 14. Community Council ear `r oA 1 � B. 1 hereby certify that (I am) (I have been authorized to act for) the owner of the property described above and that I desire to subdivide it in conformance with Chapter 21 of the Anchorage Municipal Code of Ordinances. I understand that payment of h basic e subdivision. 1 also subdivision fee Is nonrefundable and is to coverthe costs associated with processing this application, that it does not assure approval exceed the basic fee. I further understand that additional fees may be assessed if the Municipalitys costs to process this app' understand that assigned hearing dates are tentative and may have to be postponed by Planning Staff, Platting Board, Planning Commission, or the Assembly due to administrative reasons. Date: Signature *Agents must provide written proof of authorization. 31W]FM (Pw. MM1I' . C. Please check or fill in the following: 1. Comprehensive Plan —Land Use Classification Y` Residential Marginal Land Commercial CommercialAndustrial Parks/Open Space Public LandsMstitutions Transportation Related 2. Comprehensive Plan —Land Use Intensity Dwelling Units per Acre Special Study Alpine/Slope Affected 3. Environmental Factors (If any): a. Wetland 1. Developable 2. Conservation 3. Preservation X Alpine/Slope Affected Industrial Special Study b. Avalanche c. Floodplain d. Seismic Zone (Harding/Lawson) D. Please indicate below If any of these events have occurred in the last five years on the property. Rezoning Case Number Subdivision Case Number Conditional Use Case Number Zoning Variance Case Number Enforcement Action For _ Building /Land Use Permit For. Amry Corp of Engineers Permit E. Legal description for W2ST , 5 _Warty N)P_2t0iA-iJ llUAyA' F. Checklist 40 Copies of Plat (Long Plat) 30 Copies of Plat (Short Plat) Reduced Copy of Plat (8'Ax 11) Certificate to Plat Aerial Photo Housing Stock Map Zoning Map Water. X Private Wells Sewer. X Private Septic qro� c.e m....xsr Fee Drainage Plan Topo Map 4 Copies Soils Report 4 Copies Pedestrian Walkways Landscaping Requirements Community Well Community Sys. Waiver Public Utility Public Utility FROM : Panasonic TAD/FAX ter; •y � 1 � PHONE NO. 3450814 Jul. 16 2001 10:1041 P01 Muir/clo,ghly olAnchrnvye A LICAT% FOR ORIF licant: Mike Stolle. adfeSS: �dn9n�� �.erv„IOnve An i�a9e—Ak rL )hone Number 3 5 4 , _ a.; our Subdivlsl4n .eget Aescription of property involved 3resentJfuture Use of Property '"�Ir�-�dential x ldentillcatlon Number. 0 01 TbJs !s a request for a variance from Section 2? a� of tho Lend Subdivision Regulations. ra This variance is for: •d 3 dth Re uirements A: The existing situation Is: Ya0a ni B. The granting of this petition would permit: Lots 2 3 Ss 4 to be narso er hart the 3:1 deDlh to width Mouirement. ove that each of th&(O Imloda Anvmr eachYof the conditions s Jhp in detalt sing must addit nal sheets If necelssary. four conditions AOvO bG@n 7179 undersigned alleges that: 1. That there are such special circumstances or conditions affecting said property that the strict application of the provisions of this ordinance would clearly be impractical, unreasonable. or undesirable to the Peneral public. ?hose speclal circumstances are: • 2. That file granting of the specified variance will not be detrimental to the public welfare or Injurious to otherproperty in the area In which said property Is situated for the following reasons: The proposed lots ere large onough that it will not be detrimental 3. That such variance will not have the effect of nullifying the Intent and purpose of this ordinance or the Comprehensive Plan of the Municipality for the following reasons: : 4. ,The above listed special conditions or circumstances do not result from the action of the applicant and such conditions or circumstances do not merely constitute a pecuniary (monetary) hardship or Inconvenience in that: the ex(st ng topography and street design Is dlctatingthe design. Srpoeluro W AuMorMO Agent Addroer sloW, Benson f VY0. Suns ICJ, Anumage, Ak .:6 VLC-. adv, Anchorape. Ak FROM : Panasonic TAD/FAX PHONE NO. : 3450814 Jul. 16 2001 10:1aCM P02 JUL-It-000! nun UUM tl(l Ltlniwnroi.ntrn rnn nv, dvwval+ 11 "' ��= "{ °•o. Municipality of Anchorage PLATTING BOARD AUTHORITY 1`Li/1 APPLICATION FOR VARIANCE Appiicant:AAA A 1- l'l anrhnrage Ak 99515 .Address: 'Phone Number,,20-Q3 A ,Legal Description of property lnvolved; . GrandvlaW Subdivision Present4uture Use of Property • Tax Identification Number." 02012106 This is a request for a variance from Section 2 I -6 Q.740 of the Land Subdhdsion Regulations. This vorlance is for. Cul-dt illcs IQnaer khan 900 feet q: The existing situation !s: Vaca B. The granting of this petition would permit: One I e -Sac to be approximately WO Iona, Before a variance nlay be granted: the applicant must prove that each orthe following four eonoiUons have been .1r11(Iled• Answer each of the conditions in d@tail, using additional shoots if necessary. , :The undersigned alleges that: r i 1. That there are such special circumstances or conditions affecting said, property that the strkl application of (pe provisions of this ordinance would clearly be impractical, unrorlsonable, or undesirable to the general public. These special circumstances are: 2..That the granting of'the specified variance will not be detrimental to the public welfare or )nfurious to other property In the area in which said property is situated for the following reasons: The proposed desl will create safer, flatter road Grades• 3, .That such variance Will not have the effect of nullifying the Intent and purpose of this ,ordinance or the Comprehenstve Plan or the Municipality for. the ..f.o�llowinfollowing bo9se C I expects d our s dso b J_nrovidina1 j"ater ens e�L 4. The above listed special conditions or circumstances do not result from the action of the applicant and such conditions or circumstances do not merely constitute a pecuniary (monetary) hardship, or inconvenience in that: oaraphY Is dlet atin aihe srawrlu• N0ulrl OW Mcon Bgen n & AOdros&' a1rv0. Suits 100, Mohorope. Ah iNt `•) Il� �Q.�.s' �t'�S�l1�.s..�CD��G�tnJcS�wlc+t�S��ht„ tw• a r AMIM: f1020 Jarvi DrN•• MMtlrag•. Ak Municipality of Anchorage DEPARTMENT OF PLANNING P.O. Box 196650 Anchorage, Alaska 99519-6650 Telephone: (907) 343-4309 Fax: (907) 343-4220 httpJ/www.cI.anchorags.ak.us George P. Wuerch, Mayor REQUEST FOR COMMENTS ON PRELIMINARY PLAT SUBDIVISIONS July 18, 2001 The Municipality of Anchorage has received application relating to the following preliminary plat activity. The hearing date is Wednesday, September 05, 2001 and comments must reach our office by Friday, August 17, 2001 in order to be included in the staff conditions of approval. Preliminary Plats to be heard: 570542-2 Mulder Subdividisbn - Time Extension �• S10804 Crestview Village Addition 1 fq ,Q , S/0809 510810 ATU N `K) John Wayne • 0 . S10811 S10812 Grandview Subdivision Crowberry Subdivislon ai•'0_ S10813 Safer Subdivision /JJv Attached are copies of the proposed plats. Please submit your comments in writing, specifying any easements or other requirements that you department or agency may need. If no easements are required at this time, please provide a list of those plats to which there is'no comment' or 'no objection'. Sincerely, Jerry T. Weaver, Jr Platting Officer Enclosures 08/31!01 09:47 EAI 907 343 4220 Community Planning (f. ''-. -7 MUNICIPAUTX OF ANCHORAG 'Community Planning & Development P.O. Box 196650 - Anchorage, AK 99519.6650 Fax Cover -Sheet DATE: - TO: PHONE: FAX: RE: CC: Number of pages including cover sheet.- Message heet: Message 0001 09/31/01 09:17 FAS 907 343 4220 Community Planning X002 1. 1 r .rr..•.r. �• axsveolvl4ro • 1 J i a j r Ir�T ; . aNMa ��rN�J•' M •y r' � r I 1 � �� aceta.• fIM rw'Ir•Irf ON" /r.••1 FAA Maa.A y) M, MIMi = +O I 5 I I/ e !1 �3 •raver aver �� ar/Jc �� r r+ 10 04 I I AWN f 017' to s'' •ver \ M R + \\ s Ice r+'/ /lv t )40 2a 04 ONW I / � 1.1' f L t nn' •4parr J•rrf I ♦ry r'« i +I.r•l PArr �� wlau/a•r � �;-0 f •A..1 � ' �� A.IN,/r r�laYa � 1�,. ~- a�.V Jr f i •r t ! � o t M � jai i �. •••>a r C 1 ! i a.d' / ti w-r/' tl. N •1 ar ' .lf j �\ n Jiri r IMM �+ � r .i/.dro4b 1 � r 1Y �.ow�i.^•••r.4• I% •I I aM• (/•�, •� i / i""il+''i �• 1• • = \ � ` 110.1 •T AYy✓ yb��..�N/_ -4. 8 J•rrr. HOVEMpEII 7 193 a•a Jr rw'•arNlrr r� ton/ Al" f• OLar J. Lon IMYI, aGA: 1. ,'•�.K` j:iry 'M'r .,r l �..f�/; K ura fM•v 2 rIK/J. tfrJltf. C[.C♦ l • •w n * 1v srocct suaorvra/ov n.._ V i (V V'1i y J nwa..Y.+ r a.+ Jrw..f+i. xrne�rY. ra,✓• •I'.Al� F f M, JM.• IaAKA YYI V • Y Mffi•S_ l..•� .ur rfr rr 08/31/01 09:48 FAX 907 343 4220 Mr. Mike Stolle 814 i9. 2nd Avenue Anchorage, AK 99501 Community Plannins 1 4040 "8" STREET ANCHORAGE, ALASKA 99503 (907) 218.15SI August 17, 1978 W.O. AICS86 tion to Ascertain stemsabnlity Subject: Subsurface Investiga of Placing On -Site Sewage Disposal Sy 61Subdivision ., R. unR2W., ated Seward niMeridi nE , T. 1 Alaskaeetion Dear Mr. Stolle: We have preformed the subsurface investigation ion on the placement zeferencet, parcel to ascertain stemssontthelindividual lots with ananticipated R-6 on-site disposal devzlopment (1-1/4 acre lots). We have used as our basis for this exploration, the preliminary plat prepared, and provided to us by Tryck, Nyman s Hayes Engineers. The data from that subsurface investigation is presented as follows: Test Hole Location Sketch Figure 1Table A Test !Iole Logs Table A Individual Lot Percolation Ratings Sheets 1-4 I Grain Size Distribution Sheets 5-7 Standard Explanatory Information I CONCLUSIONS 1.The site soils are granular in nature, generally fairly Clean gravelly sands and sandy gravels. Every lot in the subdivision should have soil conditions such that 'its percolation. rating will fall range of 100.to 200 - d listing of the estimated and sf/bedroom A detaile actual ratings for all the lots within th> subdivision is included in this report as Table B. 2, Little shallow, subs,_rface water was encountered on the site. Water in sufficcrt quantities was not detected in any of the test holes that .could preclude development of a disposal system- however, any 0 003 OBiJ1i01 09:48 FAS 907 343 4220 Community Planning IZ004 1 Mr. Mike Stolle August 17, 1978 Page 2 springs, or natural drainage paths should be avoided. It should also be remembered that the water level will fluctuate with seasonal and climatic changes. This summer water levels have been quite high. 3. Bedrock was encountered in test hole #3 at 15.31, test hole 05 at 10.5' and in test hole t7 at 12.51. Though the bedrock, is relatively shallow on this site, we do not anticipate it precluding the development of systems on subject lots. The lots are big enough that if bedrock is encountered above the 12' level it should be possible to move the system to a more desirable location I i.e, bedrock below 121). DISCUSSION The exploration consisted of the placing of eight test holes as located on figure 1. The holes were drilled using a tract mounted Mobile Drill B-50 drill rig c.med and operated by Denali Drilling, Inc. The test holes were legged and the drilling supervised by Mr. T.L. Barber, staff geologist with ),laska Testlab. The holes were drilled using solid, continuous flight auger. Grab samples were taken driectly off the drill bit as the auger was raised to the surface. As samples were recovered, they were placed in sealed plastic bags and transported to the laboratory where their natural moisture content and dry strength were determined. Each sample -was then visually classified with samples of similar color, texture, and grain size distribution being given an arbitrary group designation. Further testing was then performed on a composite sample from the group rather than on individual samples. A total of five groups were encountered and are described below: Group A is a brown Silty Sandy Gravel that is moderately frost susceptible, being rated r- . Its unified classifica- tion is GM and its gradation is shown on Sheet 1. This is generally the predominant soil on the site. Group B is a brown Si�ltyy� Sand that is moderately frost auseeptible�ei:ng rated F-2. Its unified classification is SM. Group C is a brown Silty Gravelly Sand that is moderately frost susceptibl-c, e`ing rate% F-2. Its unified classification is SM and its gradation is shown on Sheet 2. 08/31/01 09:49 FAS 907 343 4220 Mr. Mike Stolle August 17, 1978 Page 3 Communit7 Planning d Group D ie a brown Silty Gravelly Sand that is moderately frost susceptible, eing a—e3 F-2. its unified classification is SM/SW and its gradation is shown on Sheet 4. Group E is a brown Silty Sandy Gravel that is moderately to highly frost susceotxbl—ebeing rated F -1/F-3. Its unified classification is GM. 0005 We hope this information is sufficient for your present needs. If we can be of further assistance or help in interpretin• any data, please do not hesitate to contact us. very sincerely, A SKA TES Vf j Z-1.� 3elvin R. Vichols, P.E. Laboratory Manager MRf1: rb Enclosures i 1 I 08/31/01 09:49 FAS 907 343 4220 P Hole No. 1 Location Ton of ridge olona N nro�erty line of 40 acre parcel TO; F,ev. Existing Feet 1 •/� 2 3 i, 4 �:400 6 .T. . 7 ne , /,I• 6 AO, .,0. 9 S ill 12- 13 14 is 16 17 is i9 20 21 22 23 24 25 %6 CLASSIFICATION SYSTEM, Brown silty Sands, moist to wet (SP/SM) Community Planning Dense Gravelly Sandy Silts (SM/ML) Bedrock Note; Sands would provide percolation for on-site leach fields on 'A, sized lots. No groun6!encountere Bedrock was verified at the minus 9.5 ft depth by drilling 2 test holes apprO: imately 50 feet apart. el006 Sheet 1 of -I— W.O. No. Operator •7M -DP Date 9/25!76 Client Mike Srollr Project SE 1/4 NE 1Lq sec T11N R2W S.M. SA."IPL£ DATA LEGEND CRAVEL SAND SILT CLAY ORGANIC CONTENT PEAT FROST VATrR TABLE 08/31/01 09:49 FAX 907 343 4220 Communit7 Planning Flo le Vo. Location Locat.ed in driineoc arca in the vicinity of Litt -In. _ Rabbit Creek (above the road` Top Elev. E.rjstinn Feet 1 b� 2 3 4 /G S 6 �! . 7 j! ado 10 z?j-4 12 10 i 13 0 14 O 15- 16 17 IB 19 20 21 22 23 24 25 CLASSLFICATION Gravelly Silty Sand, wet (SP/SM) Gravelly -Silts with water, bearing sandier layers t011 O Note: No bedrock encounterecj round water in layers throughout depth of test hole. On site sewage Syster: would require packrge treat- ment typo sew::ye plants chlorinator. a minimum o"_ 100 feet away from Litt?r. Raabit Creek drainage a_:ra. IZ007 Sheet 2 of —)� JM -DY W.O. No. 9/25/76erator Date Client Mike Stolle ProjectSE 1/4 NE T 1N KZW S.M. SAMPLE DATA GRAVEL SAND SILT CLAY ORGANIC CONTENT PEAT FROST WATER TADT.P: 08/31/01 09:30 FAX 907 343 4220 Community Planning . �--3 ,tion Aoor L4 1io,.estead Cabin On t access road Elev. F.risti.nR �.- t rr.hSSIFICATION t 2 .O . 3 4 0O �. . 6 � 9� 10 , p' 11 12 J'A 15 �/yy 17 I 18 19 .YO. 20 21 22 23 2.1 25 26 e008 Sheet 3-- of 3' W.O.No. Operator Jt_ t�DP Date 9/25/76 , Client Mike Stolle Project SE 1/4 TIF. 4 -c — T11N R219 S.M. SAI,PLY LEGENDDATA 0 Gravelly Silty Sand, dry GRAVEL 0 4 SAND I I'/ Silty Sandy Gravel, dry SILT (GP/GM) CLAY / Sandy Silts ORGANIC Co'4TENT " V/ Silty Sands 6 Sandy Silts avel with angular gr-O1c PEAT Dottom Of Test FROST Note: No bedrock Or ground rater encountered. Suils a.—suitable for on -sit,: sc,:agc it NATER TABLE 08/31/01 09:50 FAX 907 343 4220 Community Planning 12009 ` + � ♦ • ♦.•♦ 1 ��1 f• •\' Iii•\ \� .. . \\ \•� 1 • • •.;%'•'',, ."•111 _ .' �.. .'�, . .. �.� \ ... , � '��•Ys .��.�•` �;' •rte` �_ ' . � . �• :. rt::r •� �` ,t• / �^ ^.� t' 1` ate•-. ♦ ♦ � .i'�� � i 1 , 1 .• .i �• .•I. I.I.• ��r•�,if•.N ���.. %; ' r. I� "�.,,—.0 `• ,��� � `♦• ' '' '• I :,� {'. j.i •, a•.I-•. tr • •rte.:....: •%� � ' '` � r .. • • • •••: •� •.� : ��.....r. , • . • ` \til: FIG I 08/31/01 09:50 FAX 90T 343 4220 Community Planning 0010 Test Hole 41 Depth in Feet Prom -__To 0.0' 1.5' 1.5' - 2.5' 2.5' - 16.0' m O Table A WO IA18596 Logged By: T.L. Barber Date: August 11, 1978 Soil Description Brown Organic Overburden, wet to saturated, soft. F-4, brown lardy Silt, ML, topsoil, wet, soft, NP. F-1, brown silty Sandy Gravel, GM, wet, medium to hi—gF—aensity, particles to 1-1/2", Group A. Bottcm of Test Hole: 1E.0' Remarks: Perc test run in this hole 5.0 min/inch M Frost Line: None Observed M Free Water Level: None Observed Type of Cry Sample Deptr. Blows/6" Mt Sample Strength Grocp Unifi^n9 1 2.5' - 23.9 G L - ML 2 5.0' - 11.0 G N -L A GM 3 10.0' - 9.3 G N -L A GM q 15.01 - 14.9 G L A G``! w� .l P.Gmarks: 1. Type of Sample, Gi�Grah, SP Standard Penetration, U = Undisturbed. 2. Dry Strength, N=None, L -Low, M=Mediu^, H=High. 3. Group refers to similar material, this study only. 4. cerctral Information, see Sheet 1. S. Frost and Textural classification, see Sheet 2. 6. Unified Classification, see Sheet 3. 08/31/01 09:51 FAI 907 343 4220 A Test Role 12 Depth in Feet Table A Community Plannins Y) WO JA18586 Logged By: T.L. Barber Date: August 10, 1978 toll Fromm TO Soil Description 0.0' - 3.5' F-2, brown Silty Gravell Sand, SM, damp, low to medium density, roup B. 3.51 - 16.0' F-1, brown Sj t�[ RRndX Gravel, GM, Group A. Bottom of Test Role: 16.0' Remarks: 2.5cmun in this hole in/inc6 test l Frost Line: None Observed Free Water Level: None observed Remarks: 1. 2. 3. 4. 5. 6. Dry _Strength Gz_ oup Unified Type of gale Deoth Blows/6" 148 ESME1—e 1 2.5' _ 11.7 G• 2 5.0' - 10.5 G 3 10.0' - 6.8 G 4 16.01 Remarks: 1. 2. 3. 4. 5. 6. Dry _Strength Gz_ oup Unified N B SM N_L A GM Zr-L A GM N -L A GM Type of Saraple. a -arab, Sp a Standard Penetration, U . Undisturbed. Dry Strength, N -None, !.=Low, M=Medium, H=High. Group refers to similar material, this study only. General Information, see Sheet 1. Frost and Textural Classification, see Sheet 2. Unified Classification, see Sheet 3. 2 f a o8/31/01 09:51 FAX 907 343 4220 Community Plannlna Test Hole t4 Dovth in Feet From To 0.0' - 1.5' 1.5' - 5.0' Table A U012 `11 WO #A18586 Logged Ey: T.L. Barber Date: August 10, 1978 Soil DeseriFtjon F-4, brown Sandy Silt, ML, damp, soft. F-1, brown Silty Sandy Gravel, GM, damp to wet, medium ensity, partic e 5 to 1", Group P.. 5.0' - 16.0' F-2, brown silty Gravelly sand, sm1s'wj wet, to 3/8", low to medium ensity, parlti"Elqs Group -D. Bottom of Test Role: 16.0' Remarks: 3e3 min. test /inrun in this hole Frost Line: None Observed Free Water Level: None Observed Sample De ti. Type of Dry Blows/6" M8 SampleStrength Group Unified 1 2.5' - 7.1 G N A GM A GM 2 3 5.0' 10,0' - -- G - - 11.3 G L C SM - D SM/SW 4 16.0' - -- G Remarks: 1. Type of Sample, G -Grab, SP = Standard Penetration, 2. U = Undisturbed. Dry Strength, N -None, L -Low, 14 -Medium, H-Vigh. 3. Group refers to similar material, this study only. 4. General information, see Sheet 1. Textural Classification, see Sheet 2. 5. 6. Frost and Unified Classification, see Sheet 3. 08/11/01 09:51 FAS 901 343 4220 Community Planning IZ013 Test Hole 95 Table A WO MUSH %egged By: T.L. Barber Date: August 10, 1976 Depth in Feet From To 1.0' - 10.5' Soil Description F-4, brown Sand Silt, ML, damp, soft, NP. F -2/F-3, brown Silty Gravelly Sand, SM, damp to -wet, high density,particles to 1", Groups C and E. Bottom of Test Hole: 10.5' Remarks: _edrock encountered at 10.5' Frost Line: None Observed Free water Level: None Observed Type of Dry Sample Depth Blows/6" M% Sample Strength Group Unified 1 2.5' - 9.6 G N -L E GM 2 5.0' - 11.7 G N -L E GM 3 10.0' - 9.3 G L C SM Remarks: 1. Type of Sample, G=Crab, SP = Standard Penetration, U = Undisturbed. 2. Dry Strength, N -None, L -Low, M -Medium, H=F.agh. 3. Group refers to similar material, this study only. 4. General Information, see Sheet 1. 5. Frost and Textural Classification, see Sheet 2. 6. Unified Classification, see Sheet 3. N 08/31/01 09:51 FAS 907 343 4220 ZZ Test Hole 15A Depth in Feet Community P1ann1ne Table A ® 014 t4 WO IA18586 Logged By: T.L. Barber Date: August 10, 1978 From To Soil Description 0.0' - 0.5' F-4, brown Sandy Silt, ML, damp, soft. 0.5' - 16.0' F-1, brown Silty Sand Gravel, GM, damp, to wet, Group A Bottom of Test Hole: 16.0' Frost Line: None observed Free Water Level: None observed Type of Dry Sample Depth Blows/6" MI Sample Strength Group Unified 1 2.5' - 4.3 G N A GM 2 5.0' - 8.1 G N -L A GM 3 10.0' - 5.7 G N -L A GM 4 16.0' - 7.7 G N D SM/SW Remarks: 1. Type of Sample, G=Grab, SP = Standard Penetration, U - Undisturbed. 2. Dry Str*ngth, N=None, L -Low, M=Medium, H-Hich. 3. Group reiers to similar material, this study only. 4. General Information, see Sheet 1. S. Frost and Textural Classification, see Sheet 2. 6. Unified Classification, see Sheet 3. o8i33i01 09:'2 FAX 907 343 4220 Community Plannlns �O1S Test Holes.16 Table A WO fA18586 Logged By: T.L. Barber Date: August 10, 1978 Depth in Feet From To Soil Description 0.0' - 3.0', F -2/F-4, brown Silty Sandy/Sandy Silt, SM/ML damp. 3.0' - 8.0' F-2, brown Silty Gravelly Sand, SM, wet, particles to.,T4", Group C. 8.0' - 16.0' F-1, brown Silty Sas,dy Gravel, CM, wet, medium to' high density, partic eI s to 1", Group A. Bottom of Test Hole: 16.0' Frost Line: None Observed Free Water Level: None Observed Type of ' Dry Sample Depth Blows/6" M1 Sample Strength Group Unified 1 3.0' - 24.9 G N - ML 2 5.0' - 16.5 G L C SM 3 10.0' - 12.4 G N A GM 4 16.0' - 7.4 G N . A GM Remarks: 1. Type of Sample, G -Grab, SP - Standard Penetration, U - undisturbed. 2. Dry Strength, N=hone, L=Low, M=Medium,.H=High. 3. Group refers to similar material, this study only. 4. General Information, see Sheet 1. S. Frost and Textural Classification, see Sheet 2. 6. Unified Classification, see Sheet 3. 1 08/31/01 09:52 FAX 907 343 4220 Community Plannlns ® 018 Test Hole i7 Table A WO IA18586 Logged By: T.L. Barber Date: August 11, 1978 Death in Feet From To Soil Description 0.0' - 3.0' F-2, brown Silty Gravelly Sand, SM, wet, particles to /4", Group C. 3.0' - 12.5' F-2, brown Silt Gravelly Sand, SM/SW, wet, medium to hig ensity, particles to 1", Group D. Bottom of Test Hole: 12.5' Remarks: Bedrock encountered at 12.5' Trost Line: None observed Free Water Level: None Observed Type of Dry Sample Depth Blows/6" M% Sample , Strength Group Unified 1 2.5' - 25.5 G L C SM 2 5.0' - 10.5 G N D SM/SW 3 10.0' - 11.5 G L D SM/SW Remarks: 1. Type of Sample, G=Grab, Sp - Standard Penetration, U - Undisturbed. 2. my Strength, N -None, L -Low, M -Medium, H=High. 3. Group refers to similar material, this study only. 4. General Information, see Street 1. 5. Frost and Textural Classification, see Sheet 2. 6. Unified Classification, see Sheet 3. e( xre ; nM \N. / x000 1!001 I e is M. Y.1 Mfl i lYOY Y _Ot i(V rn iNl reb n e/ • %is r line 'u 'xxoY`ii �pY uj f0i%v'l . Ipio wb a IOi V IO.p i" Nill (h NI.O 10.00 1� i>ll iN� I 101b 4i IOI.O f 104. Y 1 (!11 0 140 iNp .Olro IO4b �* 4� r 4 � r /O 00 a / e I I I r rule n I - GR. 3242 3243 3342 3343 267 Upper Hillside Area Reference Map—PISA 2B9 280 Y © COPYRIGHT 1985 JMR ANDERSON ENGINEERING P.O. BOX 240773 ANCHORAGE, AK 99524 MEMO DATE: 811312004 TO: Dan Roth WITH: MoA/OnSite Water and Wastewater FROM: Mike Anderson 7� l(. SUBJECT: Grandview Subdivision Lot 9 Slope Flattening Attached is a drawing showing the slope near the test holes designated for septic systems on the proposed Lot 9, Grandview Subdivision. The slopes have been flattened to less than 25% to meet Municipal Code. All comments have now been addressed and we are hopeful the plat can now be signed. Please let me know if you have additional questions. AUG -11-2004 WED 04:23 PM LANTECH FAX N0. 5616626 P. 02/02 Lot 10 202,519 Sq.Ft. 4.55 Acres m n -i Lot 9 239,389 Sq.Ft. 5.50 Acres 15' TE&C Eosement� - - ---- - -"- TM� Snow Bear Drive n 15' TE&C Eoscment Lot 7 Lot 6 318,827 Sq.Ft. 317,453 Sq.Ft. 7.32 Acres 7.29 Acres Apr -19-04 01:18P Permit Counter 907 343 8250 P.02 1. Detailed topographical information shall be provided for proposed lots 6.7. 8, and 9 showing that these lots meet the slope requirements of AMC 15.65, 2. The so 1s logs o the tes es 6--n7tis proposed subdivision shall be submitted on an MOA approved form. Seasonal high groundwater monitoring results shall be included. 3. Supporting documentation on water availability must be provided. This documentation shall include an hydrologist's report stating the expected quantities of groundwater available to this subdivision and the effects of the appropriation of water to serve this subdivision on adjoining properties. IAJc— ! -bTJ ES"j 7- I,r �7 "'i C-- 1hm r i/-� uam! 4OSS .sAyS ,rJH s VOJ Wr 5-/19/04 Mii<,- 1s 6-cfry . rr &Er Cotiroues or L o T q ALL 07HF-R L orS AnPEA-1Z 7M UF_gCCF-✓r,9&r= i IN 14i%l2 M()X1Itil?1P - WJII- PP- POK77K69m1p6- ST/LL. ANDERSON ENGINEERING P.O. BOX 240773 ANCHORAGE, AK 99524 522-7773 522-6779 (FAX) July 7, 2004 Municipality of Anchorage Building Safety Division On -Site Water and Wastewater Program 4700 S. Bragaw Street Anchorage, AK 99507 Attention: Dan Roth Subject: Grand View Subdivision S-10811 Septic System Feasibility Study Dear Dan: Additional test holes were placed on approximately 11 lots in the proposed Grand View Subdivision during the period from May 5 to May 7, 2004.• The purpose of the test holes was to assess the underlying soil conditions and to determine whether septic systems could be placed on the lots to serve single-family homes. The test holes were placed to supplement a study completed in March of 2001 and previously submitted to your predecessor, Mr. Jim Cross, P.E. Since that time the subdivision has been redesigned and some of the lot lines were moved leaving several lots without test holes and verification of suitability for onsite septic systems. All holes placed this year were to depths from 10' to 18' utilizing a tracked backhoe owned and operated by Mike Alexander of Anchorage. An experienced soils technician under my supervision was onsite during the excavation to log the soils encountered and to perform percolation tests to determine the absorption characteristics of the materials encountered. A monitor tube was placed in each hole to determine the groundwater elevation over a period of time. All work was completed during what is normally considered the wetter period of the year so groundwater elevations were found at or near their highest levels. The results for the percolation tests, soils encountered and water monitoring are enclosed for your review. In addition, a contour map along with the location of the test holes is also available for your information. System sites have been placed on the plat at areas known to be suitable for effluent absorption. Other areas, not studied may be available on each lot and should not be ruled out for further development. The Municipal ordinance governing septic systems requires either a reserve area on each lot for septic systems or a minimum of three septic system sites designated on the final plat. These areas must be outside the 100' protective radii of all wells in the area. In addition, the sites must be 100' form any surface water or water body. The attached drawing shows the locations of the septic systems. The well radii have been previously submitted to you for Grand View Subdivision July 7, 2004 Page 2 review. Our analysis indicates the systems can be placed on each lot along with a well. The locations of the septic systems are on slopes less than 25% in grade and more than 50' from any break in grade greater than 25%. In some cases minor grading may be required and can be easily completed during construction of the septic systems as the lots develop. A total of 43 test holes were placed on the proposed lots. The overburden material composed of peat or other organics ranged in depth from 1' to 3'. This material was underlain by sand with varying amounts of silt and some gravel. Bedrock was encountered in some of the holes and well -graded gravel in others. The overall characteristics of the area vary appreciably and each lot was considered individually. The final layout of the lots along with the septic system locations are shown on the attached drawing and have been incorporated onto the final subdivision plat. Water monitoring was completed at 4 different times and always at the high groundwater period of the year. Copies of the test hole logs, percolation tests, test hole location map and the contour map showing the surface topography of the property are included for your use. The road to serve the subdivision has recently been constructed. The road will intercept much of the surface and subsurface water, which affects this subdivision in the periods of heavy runoff. It is probable that groundwater levels found on the lower or north side of the road will drop appreciably with the completion of the road. Our study indicates that septic systems can be successfully placed on each of the lots. Some grading may be required during development of the lots to insure the 50' separation distance from the system to a break in grade greater than 25% is maintained. Please let me know if you have further questions. Sincerely, mj....L (f aq,--, Michael E. Anderson, P.E. Attachment MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 SOILS LOG - PERCOLATION TEST PROJECT #: PERFORMED FOR: Stolle Investments Inc. DATE PERFORMED: 3/9/01 LEGAL DESCRIPTION: Lot 1 Grandview TEST HOLE # 1-1 SLOPE SITE PLAN 2 3 4 5 6 7 8 9 EVA OG/OL Silty Gravel with Sand GM WAS GROUNDWATER ENCOUNTERED? IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: NO 11' 5/22/2001 6.5' - 6/1/04 4rc• cnnini S L 0 P E N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/9/01 10:10 12.0" 1 10:40 30 7" 5" Recharge 10:41 12.0" 2 11:11 30 8" 4" Recharge 11:12 12.0" 3 11:42 30 PERC RATE: 7.5 MIN./INCH PERC. HOLE DIAMETER: 6_ TEST RUN BETWEEN 5.0 FT. AND 6.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: LL -K- I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE • DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG —PERCOLATION TEST PERFORMED FOR: Stolle Investments. Inc.DATE PERFORMED: 3/9/1001 LEGAL DESCRIPTION: Lot 1 Grandview TEST HOLE4F 1-2 SLOPE SITE PLAN 2 3 4 5 6 7 8 9 17 OG/OL WAS GROUNDWATER Well Graded Sand :: •: ..f with Gravel NET DROP SW IF YES, WHAT DEPTH? 0 12.0" P DEPTH OF WATER None AFTER MONITORING: E DATE: 5/22/01 11:16 Pipe Blocked 5/15/04 12.0" 2 11:31 15 BOH - 10' 11.5" WAS GROUNDWATER GROSS TIME ENCOUNTERED? NO S NET DROP L IF YES, WHAT DEPTH? 0 12.0" P DEPTH OF WATER None AFTER MONITORING: E DATE: 5/22/01 11:16 Pipe Blocked 5/15/04 +• c 49th _ L No. aAm N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/9/01 11:00 12.0" 1 11:15 15 1" 11" Recharge 11:16 12.0" 2 11:31 15 .5" 11.5" Recharge 11:32 12.0" 3 11:47 15 51 PERC RATE: 1.4 MIN./INCH PERC. HOLE DIAMETER: TEST RUN BETWEEN--U—FT. AND 6.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG — PERCOLATION TEST PERFORMED FOR: Stolle Investments. Inc. DATE PERFORMED: 3/9/2001 LEGAL DESCRIPTION: Lot 2 Grandview TEST HOLE # 2-2 SLOPE SITE PLAN 1-0 OG/OL/PT 2 3 4 GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/9/01 15:00 Well Graded Gravel 5 " with Sand 15 6' GW/SW 6 15:16 12.0' 2 15:31 15 6' 7 Recharge I 15:32 8 15:67 15 9 10 '• 17 -13.5' 69th WAS GROUNDWATER ENCOUNTERED? IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: MIDUM L AMMAN No. OE43" NO None 5/22/2001 Dry 6/1/06 n,.. R/7n/nL S L 0 P E N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/9/01 15:00 12.0' 1 15:15 15 6' 6' Recharge 15:16 12.0' 2 15:31 15 6' 6' Recharge I 15:32 1 12.0' 3 15:67 15 PERC RATE: 2.5 MIN./INCH PERC. HOLE DIAMETER: 6„ TEST RUN BETWEEN 7.0 FT. AND 8.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments Inc DATE PERFORMED: 3/9/2001 LEGAL DESCRIPTION: Lot 2 Grandview TEST HOLE # 2-1 OG/OL/PT FA M 4 GROSS TIME NET TIME DEPTH OF WATER .',.; •,' Well Graded Gravel 5 with Sand 1 GW/SW 6 ;:: 7" 7 14:16 8 2 14:31 30 S" 9 Recharge1 14:32 1 1 12.0" 3 14:47 30 I I 12 13 ,gyp c C BOH-13'��t� 17 WAS GROUNDWATER ENCOUNTERED? IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: roan E ANDUrA I No. QJIn NO 7' 5/22/2001 8' - 6/1/04 S L 0 P E SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/9/01 14:00 12.0" 1 14:15 30 5" 7" Recharge 14:16 12.0" 2 14:31 30 S" 7" Recharge1 14:32 1 1 12.0" 3 14:47 30 PERC RATE: 2.1 MIN./INCH PERC. HOLE DIAMETER: 6_ TEST RUN BETWEEN 6.0 FT. AND 7.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK 1, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 SOILS LOG - PERCOLATION TEST PROJECT #: PERFORMED FOR: Stolle Investments Inc. DATE PERFORMED: 5/6/2004 LEGAL DESCRIPTION: Lot 3 Grandview 2 3 4 5 6 7 8 9 17 TEST HOLE # 29 WAS GROUNDWATER ENCOUNTERED? NO Silty Gravel IF YES, WHAT DEPTH? Gray GM DEPTH OF WATER None AFTER MONITORING: DATE: S/15/04 Dry - 6/1/04 n.,. _ Anninc BOH - 18' 49th: VADUa c ucrosa No. C14ml :PROFESS %o� S L 0 P E SITE PLAN N See Site Plan ---------------- See Site Plan READING DATE OG/OL NET TIME DEPTH OF WATER NET DROP Poorly Graded Silty 3:09 Gravel with Sand 8" 1 GP 10 Cr 8" Recharge 3:20 •'.• ` Cobbles to 4" 2 3:30 10 Dr 8" Recharge WAS GROUNDWATER ENCOUNTERED? NO Silty Gravel IF YES, WHAT DEPTH? Gray GM DEPTH OF WATER None AFTER MONITORING: DATE: S/15/04 Dry - 6/1/04 n.,. _ Anninc BOH - 18' 49th: VADUa c ucrosa No. C14ml :PROFESS %o� S L 0 P E SITE PLAN N See Site Plan ---------------- See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 5/6/04 3:09 8" 1 3:19 10 Cr 8" Recharge 3:20 8" 2 3:30 10 Dr 8" Recharge 3:31 B" 3 3:41 10 Dry PERC RATE: 1.25 MIN./INCH PERC. HOLE DIAMETER: 6" TEST RUN BETWEEN 50 AND 6.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments. Inc. DATE PERFORMED: 5/6/2004 LEGAL DESCRIPTION: Lot 3 Grandview 2 3 4 5 6 7 8 9 K 17 TEST HOLE # 30 BOH -19' WAS GROUNDWATER ENCOUNTERED? NO IF YES, WHAT DEPTH? DEPTH OF WATER None AFTER MONITORING: DATE: 5/15/04 Dry 6/1/04 nrw 6/7n/AL { 49th qua L NA)" No. a.ams S L 0 P E SITE PLAN N See Site Plan See Site Plan READING DATE OG/OL NET TIME DEPTH OF WATER :•, : ' ., Poorly Graded Silty ' Gravel with Sand 8" GP/GM 1 4:21 10 Or 8" Recharge 4:22 '.• ` Cobbles to 4' 2 4:32 10 Dr 8" Recharge 4:33 8" 3 4:43 BOH -19' WAS GROUNDWATER ENCOUNTERED? NO IF YES, WHAT DEPTH? DEPTH OF WATER None AFTER MONITORING: DATE: 5/15/04 Dry 6/1/04 nrw 6/7n/AL { 49th qua L NA)" No. a.ams S L 0 P E SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 5/6 4:11 8" 1 4:21 10 Or 8" Recharge 4:22 8" 2 4:32 10 Dr 8" Recharge 4:33 8" 3 4:43 10 r PERC RATE: 1.25 MIN./INCH PERC. HOLE DIAMETER: 6" TEST RUN BETWEEN 5.0 FT. AND 6.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 SOILS LOG - PERCOLATION TEST PROJECT #: PERFORMED FOR: Stolle Investments Inc DATE PERFORMED: 5/6/2004 LEGAL DESCRIPTION: lot 4 Grandview 2 3 4 5 6 7 8 9 17 TEST HOLE # 31 OG/OL Poorly Graded Silty Gravel with Sand GP/GM •20% Silt Cobbles to 4" WAS GROUNDWATER ENCOUNTERED? NO IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: Fractured Rock None 5/15/04 Dry - 6/1/04 S L 0 P E SITE PLAN N See Site Plan See Site Plan ,., 7 - READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 5/7/2004 10:14 8" 1 10:44 30 S.5" 2.S" Recharge 10:45 8" 2 11:15 30 5.75" 2.25" Recharge 11:16 8" 3 11:46 30 .75" PERC RATE: 13.3 MIN./INCH PERC. HOLE DIAMETER: 6' TEST RUN BETWEEN 5.0 FT. AND 6.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH I, MICHAEL F. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 SOILS LOG - PERCOLATION TEST PROJECT #: PERFORMED FOR: Stolle Investments Inc DATE PERFORMED: 3/11/2001 LEGAL DESCRIPTION: Lot 4 Grandview 1 OG/OL 2 3-4''. 4 :. 5- 6- 7- 8- 9 6789 ,. 10 17 TEST HOLE # 6-1 Silty Gravel with Sand SM 6" to 12" Cobbles WAS GROUNDWATER ENCOUNTERED? IF YES, WHAT DEPTH? NO DEPTH OF WATER g' AFTER MONITORING: DATE:ack5/22/2001 BleR 9' - 12' L 0 P E SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/11/01 9:15 12.0" 1 9:45 30 10.5" 1.5" Recharge 946 12" 2 10:16 30 10.5" 1.5" Recharge 10:17 12.0" 3 10:47 30 PERC RATE: _20 MIN./INCH PERC. HOLE DIAMETER: 6_ TEST RUN BETWEEN—FT. AND 7.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAFL F. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 S LOG PERCOLATION TEST PROJECT #: SOIL PERFORMED FOR: Stolle Investments Inc DATE PERFORMED: 3/11/2001 LEGAL DESCRIPTION: Lot 4 Grandview 2 3 4 5 6 7 8 9 17 TEST HOLE # 7-1 OG/OL Well Graded Gravel with Sand GW Slightly Compact BOH F 13' 4 WAS GROUNDWATER ENCOUNTERED? NO IF YES, WHAT DEPTH? DEPTH OF WATER None AFTER MONITORING: DATE: 5/22/2001 Dry 5/15/2004 Noun L uocrtsa No. [44x1 S L 0 P E SITE PLAN N See Site Plan See Site Plan ury of a VU4 READING DATE GROSS TIME NET TIME R NET DROP Start 3/11/01 13:00 jDEPTHOF 1 1330 30 11"31 2 1401 30 11" Recharge 14:02 12.0" 3 14:32 30 PERC RATE: 2.7 MIN./INCH PERC. HOLE DIAMETER: 6. TEST RUN BETWEEN---U—FT. AND 7.0 T. COMMENTS: Test Hale Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL F. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments Inc DATE PERFORMED: 5/6/2004 LEGAL DESCRIPTION: Lot 5 Grandview TEST HOLE # 43 SLOPE 1-0 OG/OL/PT I I 2 WAS GROUNDWATER NO S NET DROP 5/6/2006 ENCOUNTERED? 3 Sloughing GM A a 30 ,., IF YES, WHAT DEPTH? d B" VI 4 DEPTH OF WATER 9.7• d Recharge Tan to Olive ' A B. Fractured Rock DATE: 5/15/2006 3:42 5 . •: 10'- 6/1/2006 6 IVA F M 17 Bedrock .0 HMM c Auomwi No. a.un >o- SITE PLAN N See Site Plan See Site Plan UI -o,[w avw DATE WAS GROUNDWATER NO S NET DROP 5/6/2006 ENCOUNTERED? B Sloughing kRecharge 141 30 -12% Silt IF YES, WHAT DEPTH? 0 B" •. .. DEPTH OF WATER 9.7• E Recharge AFTER MONITORING: B. Fractured Rock DATE: 5/15/2006 3:42 30 10'- 6/1/2006 Bedrock .0 HMM c Auomwi No. a.un >o- SITE PLAN N See Site Plan See Site Plan UI -o,[w avw DATE NET TIME DEPTH OF WATER NET DROP 5/6/2006 B kRecharge 141 30 5.25" 2.7S" B" Recharge 3:12 B. 3 3:42 30 PERC RATE: 1_ MIN./INCH PERC. HOLE DIAMETER: 6_ TEST RUN BETWEEN 14 FT. AND 5.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH 1, MICHAEL F ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEPARTMENT OF HEALTH 8, HUMAN SERVICES 825 L STREET, ANCHORAGE, AK 99502-0605 SOILS LOG - PERCOLATION TEST PROJECT #: PERFORMED FOR: Stolle Investments Inc. DATE PERFORMED: 3/13/2001 LEGAL DESCRIPTION: Lot 6 Grandview 2 3 4 5 6 7 8 9 17 TEST HOLE # 8-1 SSPE OG/OL WAS GROUNDWATER ENCOUNTERED? NO IF YES, WHAT DEPTH? DEPTH OF WATER 8' AFTER MONITORING: DATE: 5/22/2001 8' - 5/15/2004 S L 0 P E SITE PLAN N See Site Plan See Site Plan 7 -of 1/LVYY READING DATE GROSS TIME NET TIME R NET DROP Well Graded Gravel 10:15 with Sand jDEPTH 110:45 GW 30 4.5" Rechar a >' Slightly Compact 2 1116 30 Recharge 11:17 12.D" 3 11:47 30 7. " WAS GROUNDWATER ENCOUNTERED? NO IF YES, WHAT DEPTH? DEPTH OF WATER 8' AFTER MONITORING: DATE: 5/22/2001 8' - 5/15/2004 S L 0 P E SITE PLAN N See Site Plan See Site Plan 7 -of 1/LVYY READING DATE GROSS TIME NET TIME R NET DROP Start 3/13/01 10:15 jDEPTH 110:45 30 4.5" Rechar a 10:46 2 1116 30 Recharge 11:17 12.D" 3 11:47 30 7. " PERC RATE: 6.3 MIN./INCH PERC. HOLE DIAMETER: �- TEST RUN 13ETWEEN 5.0—FT. AND 6.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/1004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 SOILS LOG - PERCOLATION TEST PROJECT #: PERFORMED FOR: Stolle Investments Inc DATE PERFORMED: x/6/1004 LEGAL DESCRIPTION: Lot 6 Grandview 9 TEST HOLE # 35 OG/OL .15% Silt .75" Nominal Fractured Rock 4 WAS GROUNDWATER NO ENCOUNTERED? IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: Noun E AN)MUN No. e[+m None 5/15/04 Dry - 6/1/04 S L 0 P E SITE PLAN N See Site Plan See Site Plan ur - READING oizviuw DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 5/6 11:09 8" 1 11:39 30 5.25' 2.75' Rechar a 11:40 8" 2 12:10 30 5.5' 2.5' Recharge 12:11 8" 3 12:41 30 PERC RATE: 1_ MIN./INCH PERC. HOLE DIAMETER: 6. TEST RUN BETWEEN—FT. AND 4.D FT. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH 1, MICHAEL F ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED /IIN/ACCORDANCE 0 WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 SOILS LOG — PERCOLATION TEST PROJECT #: PERFORMED FOR: Stolle Investments Inc DATE PERFORMED: 5/6/2004 LEGAL DESCRIPTION: lot 6 Grandview 7 Bedrock TEST HOLE # 36 OG/OL/PT GP Rust to Dark Gray .75" Nominal WAS GROUNDWATER ENCOUNTERED? IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: NO None 5/15/04 Dry - 6/1/04 S L 0 P E SITE PLAN N See Site Plan See Site Plan ur -o, cu, yr READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start S/6/2004 5:14 8" 1 S:24 10 Dr 8" Rechar a 5:25 8" 2 S:35 10 Dry 8" Recharge S:36 8" 3 5:46 10 Dry PERC RATE: 1.25 MIN./INCH PERC. HOLE DIAMETER:- TEST RUN BETWEEN.—FT. AND 6.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH I, MICHAEL F. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED INA ACCORDANCE RDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG -PERCOLATION TEST PERFORMED FOR: Stolle Investments Inc DATE PERFORMED: 3/13/2001 LEGAL DESCRIPTION: Lot 7 Grandview 17 TEST HOLE # 10-1 OG/OL Poorly Graded Silty Sand with Cobbles SP Slightly Compact WAS GROUNDWATER NO ENCOUNTERED? IF YES, WHAT DEPTH? - 10' DEPTH OF WATER None AFTER MONITORING: DATE: 5/22/2001 Dry 6/1/04 4Lj 49th mat L AMXRSM No. 014M L P E SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME 2- Start 3/13/01 17:00 3 17:30 30 M12.0* 4 .. 17:31 5 2 18:01 6 Recharge 7 . 8 18:32 0 ' 9 17 TEST HOLE # 10-1 OG/OL Poorly Graded Silty Sand with Cobbles SP Slightly Compact WAS GROUNDWATER NO ENCOUNTERED? IF YES, WHAT DEPTH? - 10' DEPTH OF WATER None AFTER MONITORING: DATE: 5/22/2001 Dry 6/1/04 4Lj 49th mat L AMXRSM No. 014M L P E SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME Start 3/13/01 17:00 17:30 30 M12.0* Rechar a 17:31 2 18:01 30 Recharge 18:02 . 3 18:32 0 PERC RATE: 10 MIN./INCH PERC. HOLE DIAMETER: _6.- TEST RUN BETWEEN 5.0 FT. AND 6.0 T. COMMENTS' Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK 1, MICHAEL F. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #' SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments. DATE PERFORMED: 3/13/2001 LEGAL DESCRIPTION: Lot 7 Grandview 2 3 4 5 6 7 8 9 17 TEST HOLE # 9-1 OG/OL Well Graded Gravel with Sand GW Slightly Compact BOH -12' WAS GROUNDWATER ENCOUNTERED? NO IF YES, WHAT DEPTH? DEPTH OF WATER None AFTER MONITORING: DATE: 5/22/2001 Dry 6/1/04 nous L unruau No. a43n S L 0 P E SITE PLAN N See Site Plan See Site Plan wv. DATE WATER R NET DROP 3/13/200112.0" j jETDEPTH U12:10 2" 10" 12.0" 2" 10" Recharge 12:32 12.0 3 12:42 10 PERC RATE: I_ MIN./INCH PERC. HOLE DIAMETER: 6_ TEST RUN BETWEEN—FT. AND 6.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL F. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG — PERCOLATION TEST PERFORMED FOR: Stolle Investments Inc DATE PERFORMED: 5/6/2004 LEGAL DESCRIPTION: Lot 6 Grandview 7 Bedrock TEST HOLE # 32 OG/OL Silty Gravel with Sand GM .15% Silt GP Dark Gray WAS GROUNDWATER ENCOUNTERED? NO IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: None 5/15/04 Dry — 6/1/04 S L O P E SITE PLAN N See Site Plan See Site Plan DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP 5/6/04 4Recharge 2:22 2:52 30 Dr 0" 2:53 a' 3:23 30 Dr 8" Recharge 3:21. 9" 3 3:54 30 Dry PERC RATE: 4.5 MIN./INCH PERC. HOLE DIAMETER: 6_ TEST RUN BETWEEN.—FT. AND 4.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH I, MICHAEL F. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMEDIIN/2ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 SOILS LOG - PERCOLATION TEST PROJECT #: PERFORMED FOR: Stolle Investments Inc DATE PERFORMED: S/6/2004 LEGAL DESCRIPTION: Lot a Grandview TEST HOLE # 33 SLOPE 1 GROSS TIME OG/0L DEPTH OF WATER NET DROP 5/6/04 2 ,: GP QRechar 7:22 10 Or 8' 3 8" s 7:33 10 Dr 8' Recharge 4 Qo Q Transitioning to Fractured Rock 0 „ 3 7:44 .15% Silt Dry o. '^ 5 �4 �.: GP 6 8 ; ', : Dark Gray WAS GROUNDWATER 9 . ' ENCOUNTERED? NO v 10 v Fractured Rock IF YES, WHAT DEPTH? DEPTH OF WATER None 11 AFTER MONITORING: 5/15/04 DATE: 17 Ory - 6/1/04 17 Bedrock 4L ,ouncuaxsa Na. a4mi L P E SITE PLAN N See Site Plan See Site Plan DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP 5/6/04 7:12 8' QRechar 7:22 10 Or 8' 7:23 8" 7:33 10 Dr 8' Recharge 7:34 8' 3 7:44 10 Dry PERC RATE: 1.25 MIN./INCH PERC. HOLE DIAMETER: �- TEST RUN BETWEEII 5.0 FT. AND 6.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH I, MICHAEL ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 SOILS LOG - PERCOLATION TEST PROJECT #: PERFORMED FOR: Stolle Investments Inc. DATE PERFORMED: 5/6/1004 LEGAL DESCRIPTION: Lot B Grandview 7 TEST HOLE # 34 OG/OL GM/GP s. GP Dark Gray :3 Bedrock WAS GROUNDWATER ENCOUNTERED? NO IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE. wain E Amusa No. a.un None 5/15/04 Dry _-6/1/04 S L 0 P E SITE PLAN N See Site Plan See Site Plan ur - oi,rvi54 READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 5/6/04 7:33 8' 1 7:43 10 Rechar a 7:44 8" 2 7:54 10 Recharge 7:55 8" 3 8:05 10 Dry PERC RATE: 1.25 MIN./INCH PERC. HOLE DIAMETER: 6. TEST RUN BETWEEN 4.0 FT. AND S.0 T. COMMENTS: Test Hale Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH 1, MicHan E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 SOILS LOG - PERCOLATION TEST PROJECT #: PERFORMED FOR: Stolle Investments Inc DATE PERFORMED: 5/6/2004 LEGAL DESCRIPTION: Lot 9 Grandview 2 3 >. 4 > 5- 6 6 �; a'•; 7- 8- 9- 10- 11 89 1011 ._ Bedrock 17 TEST HOLE # 41 OG/OL/PT GM Olive with Gray Coarse Sand and Gravel Rock WAS GROUNDWATER ENCOUNTERED? IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: NO None 5/15/04 Dry L 0 P E SITE PLAN N See Site Plan See Site Plan Uf— LwuV READING DATE GROSS TIME NET TIME R NET DROP 8:03 jDEPTHOF 8:13 10 8" 8:14 2 8:24 10 8 - Recharge 8:25 8' 3 8:35 10 Dry PERC RATE: ,,25 MIN./INCH PERC. HOLE DIAMETER:.- TEST RUN BETWEEN—FT. AND S.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH I, MICHAEL F. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION • ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments Inc DATE PERFORMED: _5/6/2000 LEGAL DESCRIPTION: Lot 9 Grandview 2- 3- 4 3 5- 6 :, ;•. 7 8 9 XmX 17 Bedrock TEST HOLE # 42 OG/OL/PT GM 1 a I N Olive with Gray d Coarse Sand and Gravel WAS GROUNDWATER Rock NO $ ENCOUNTERED? NET DROP Start 5/6/04 8:36 L IF YES, WHAT DEPTH? 1 0 10 Dr P DEPTH OF WATER None E AFTER MONITORING: 2 DATE: 5/15/04 nry 8" Dry - 6/1/04 8:58 Baa c ANDRM No. marl SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 5/6/04 8:36 8" 1 8:46 10 Dr 8" Rechar a 8:47 8 2 8:57 10 nry 8" Recharge 8:58 8" 3 9:08 10 Dry PERC RATE: J25 MIN./INCH PERC. HOLE DIAMETER: 6' TEST RUN BETWEEN—FT. AND 6.0 T. COMMENTS: Test Hale Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH I, MICHAEL F. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments Inc DATE PERFORMED: 5/6/2004 LEGAL DESCRIPTION: Lot 10 Grandview 2 3 4 5 6 7 8 9 17 TEST HOLE # 27 OG/OL WAS GROUNDWATER ENCOUNTERED? NO IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: >t woun. L umsa No. 011711 pROFE 6.5' 5/15/04 Dry - 6/1/04 . .S L 0 P E SITE PLAN N See Site Plan See Site Plan GROSS TIME NET TIME DEPTH OF WATER NET DROP a 5:20 Poorly Graded Silty 12.0" Gravel with Sand GM 30 Dr 12" 412% Silt BOH - 8' 5:51 Bedrock WAS GROUNDWATER ENCOUNTERED? NO IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: >t woun. L umsa No. 011711 pROFE 6.5' 5/15/04 Dry - 6/1/04 . .S L 0 P E SITE PLAN N See Site Plan See Site Plan PERC RATE: _2_ MIN./INCH PERC. HOLE DIAMETER: 6. TEST RUN BETWEEN—FT. AND 4.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH I, MICHAEL F. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IIN/ACCORDANCE 0 WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: GROSS TIME NET TIME DEPTH OF WATER NET DROP a 5:20 12.0" 5:50 30 Dr 12" 5:51 12.0"6:21 30 Dr 12" Recharge 6:22 12.0" 3 6:52 30 Dry PERC RATE: _2_ MIN./INCH PERC. HOLE DIAMETER: 6. TEST RUN BETWEEN—FT. AND 4.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH I, MICHAEL F. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IIN/ACCORDANCE 0 WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: MUNICIPALITY OF ANCHORAGE " DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG -PERCOLATION TEST PERFORMED FOR: Stolle Investments Inc DATE PERFORMED: LEGAL DESCRIPTION: Lot 10 Grandview 2- 3- 5 35 :.,. 6 -;.:•; 7 r •:'; 8 9 .... TEST HOLE # 26 OG/OL Poorly Graded Silty Gravel with Sand GM .15% Silt WAS GROUNDWATER ENCOUNTERED? NO 10 '�'+��}^,•. -' Coarse Fractured IF YES, WHAT DEPTH? DEPTH OF WATER NET DROP Start 5/6/2004 5:20 Rock DEPTH OF WATER None 1 AFTER MONITORING: 30 6.S' 5/15/04 DATE: Rechar a 5:51 Dry - 6/1/04 17 BOH -12' Bedro S 0 E SITE PLAN N See Site Plan See Site Plan _$/6n00c ur - oi[uiv» READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 5/6/2004 5:20 12.0" 1 5:50 30 6.S' 5.5" Rechar a 5:51 12.0" 2 6:21 30 6.75" Recharge 6:22 3 6:52 0 PERC RATE: 5.7 MIN./INCH PERC. HOLE DIAMETER:.- TEST RUN BETWEEN—I-Q —FT. AND 4.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE • DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG -PERCOLATION TEST PERFORMED FOR: Stolle Investments Inc. DATE PERFORMED: 3/14/2001 LEGAL DESCRIPTION: Lot 11 Grandview 2 3 5 6 7 8 9 17 TEST HOLE # 11-2 OG/OL Well Graded Silty Sand with Gravel SW WAS GROUNDWATER ENCOUNTERED? _ IF YES, WHAT DEPTH? BOH - 10' DEPTH OF WATER AFTER MONITORING: DATE: l9th n: waun c u D6VAN No. R4ln :�ROFESS1�Ni NO None 5/22/2001 Dry - 6/20/04 S L 0 P E SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/14/01 9:00 12.0" 1 9:10 10 Or 12" Recharge 9:11 12.0" 2 9:21 10 Dr 12" Recharge 9:22 12.0" 3 9:32 10 Dry PERC RATE: -1 MIN./INCH PERC. HOLE DIAMETER:- TEST RUN BETWEEN--U—FT. AND 6.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL F. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN D/9/2004 ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700H OG G 9519 PERCOLATION TEST SOILS PROJECT #: 3/14/ 001 DATE PERFORMED: PERFORMED FOR: toll Inv stments Inc. �--- LEGAL DESCRIPTION: Lot 11 Grandview 121 SLOPE SITE PLAN . TEST HOLE # 2- 3- 4 5 6 7 8 9 17 OG/OL "'• Well Graded Silty Sand with Gravel SW 3/14/01 *GROSSWET*OFNEOTStart 1 Recharge = r ROH - 14 i i . 49th WAS GROUNDWATER NO ENCOUNTERED? IF YES, WHAT DEPTH? DEPTH OF WATER 11' AFTER MONITORING: DATE: 5/22/2001 10' - 5/15/04 w00a E wunsal No. a4>,1 S L 0 P E READING DATE 11:22 PERC RATE: 4.6 MIN./INCH FERC. HOLE DIAMETER: 6 -- TEST RUN BETWEEN.7.0 —FT. AND BST• COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL Elll. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMES/9/ACCORDANCE 04 RDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 3/14/01 *GROSSWET*OFNEOTStart 1 Recharge 11:22 PERC RATE: 4.6 MIN./INCH FERC. HOLE DIAMETER: 6 -- TEST RUN BETWEEN.7.0 —FT. AND BST• COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL Elll. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMES/9/ACCORDANCE 04 RDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: TER"SAT, INC.. 1413 West 31" Avenue, Anchorage, AK 99503 (907) 344-9370 Geological Consulting Environmental Restoration Regulatory Compliance Ground Water Evaluation for the proposed Grandview Subdivision Prepared for: Stolle Investments, Inc. 14020 Jarvi Drive Anchorage, AK 99515 0 TERRASAT, INC. 1413 West 31" Avenue Anchorage, AK99503 January 7, 2002 TABLE OF CONTENTS INTRODUCTION.........................................................................................1 Site Description.............................................................................................................. I OBJECTIVES................................................................................................1 DATASOURCES..........................................................................................1 Aerial Photography d Geologic hfaps.......................................................................... I We Logs........................................................................................................................ I DATA INTERPRETATION........................................................................2 Aerial Photography & Geologic hlaps.......................................................................... 2 Local Hydrogeology....................................................................................................... 2 Aquifers and Well Yields............................................................................................... 3 Local Geology and Bedrock Occurrence...................................................................... 3 Static !Pater Levels......................................................................................................... 3 1Vitrate Occurrence......................................................................................................... 4 CONCLUSIONS............................................................................................4 RECOMMENDATIONS..............................................................................5 PROFESSIONAL SIGNATURES...............................................................5 FIGURES Figure 1 Site Location Map Figure 2 Well Index and Locations Map Figure 3 Well Yield Map for Local Water Wells Figure 4 Well Depth Map for Local Water Wells Figure 5 Depth to Rock for Local Water Wells Figure 6 Aquifer Type for Local Water Wells Figure 7 Static Water Levels for Local Water Wells Figure 8 Nitrate Occurrence in Local Water Wells TABLES Table 1 Well Log Summary INTRODUCTION Stolle Investments, Inc. contracted TERRASAT, INC to evaluate the ground water conditions in the Proposed Grandview Subdivision, Anchorage, Alaska. Our scope of services includes: • Estimating the water production potential for the proposed subdivision and potential impacts to surrounding well users based on the available hydrogeologic information. • Evaluating the aquifer conditions based on current available information for the area. • Making recommendations based on our findings to determine if additional investigation is warranted. Site Description The Proposed Grandview Subdivision is located southeast of Bear Valley in Anchorage, Alaska (Figure 1). The sectional description for the area is the NI/2 of the SE'/. of Section 6, Township 11 North, Range 2 West, Seward Meridian. OBJECTIVES Our objectives for this project are as follows: • Estimate the potential of adequate water supplies for single-family wells on lots in the Proposed Grandview Subdivision; • Determine the volume of water that will be considered adequate for a typical single- family home; • Estimate the potential impacts to water wells in the surrounding area. • Determine if nitrates will likely be a problem in the proposed subdivision or surrounding area DATA SOURCES Aerial Photography R Geologic tlfaps TERRASAT, INC examined aerial photographs to gain an understanding of the regional geology. We examined both high-altitude color infrared photos to identify regional geological trends and low -altitude color photos to evaluate local features that may influence or control the flow of ground water through the area. We also examined the United States Geological Survey's (USGS) Water Resources report entitled Hydrogeology for Land -Use Planning: the Potter Creek Area, Anchorage Alaska (USGS Water Resources Investigations Open -File Report 82-86, 1986). This report summarizes the surface geology of the Bear Valley area and contains maps that show the topographic slope and estimates of depth to bedrock for this region. Well Logs TERRASAT, INC identified 31 water wells within %2 mile of the proposed subdivision. We acquired 22 driller's logs plus five descriptions for water wells on file with the Department of Natural Resources (DNR), the Municipality of Anchorage On -Site Water and Wastewater P:\20117-Grandview\I-7-02 Grandview Water report.doc Pagel of5 Services, or on file with the United States Geological Survey. We tabulated information from the available well logs into a spreadsheet (Table 1). Information provided by the logs includes well location, well yield, well depth, depth to bedrock, aquifer type, and static water level. One or more parameters are missing for some of the wells. Using a geographical information system (GIS), we plotted the water well locations based on the DNR coordinate reference system of Section, Township and Range. We labeled wells according to an assigned index number from our database (Figure 2). The GIS system enables TERRASAT, INC. to make links between spatial data, well locations, and ancillary information such as well elevation, well depth, depth to bedrock, or the physical description of each well. The power of the GIS is that it allows us to create new maps based on queries of the ancillary information attached to each well location. We use these new maps to look for trends within the data. General practice for evaluating depth to ground water requires all water levels be measured in a very short time period, as static water levels may vary in response to stream levels, rainfall, pumping, and seasonal variations. Accurate measurement of water levels is important to determine the sources of water and to determine if flow paths change seasonally. Data from the driller's log represents water levels from different times, often years apart, and may provide a poor representation of the static water levels in the area. DATA INTERPRETATION Aerial Photography & Geologic Maps Interpretation of local large-scale geologic features reveals that bedrock gently slopes to the north-northwest. Several northwest -southeast linear features were observed near the property. These features are interpreted as a possible geologic faults. Faults are not only common geologic features that control the flow of local surface water, but also tend to be good conduits for ground water. The U.S.G.S. Water Resources Investigations Open -File Report82-86 evaluates the ground water resources in the Potter Creek area, including Rabbit and Little Rabbit Creeks. This report shows that an estimated 6-8 ft3 per second of ground water flows beneath the Potter creek area. The authors analyzed local precipitation amounts, local recharge, and compared these values to the amount of water flowing out of the Potter Creek area, discharge. They determined that the amount of water leaving the Potter Creek area as surface water, water lost to the atmosphere, or as ground water is more than the amount of recharge that results from annual precipitation. They conclude that a significant portion of the ground water that flows beneath the Potter Creek drainage basin comes from sources east of the valley higher up in the Chugach Range. Local Hydrogeology TERRASAT, INC developed a hydrogeological model for the area. Our model suggests that the dominant aquifers in this area are bedrock aquifers. We believe that the ground water occurrence and flow within the area is controlled by structures in the regional and local bedrock. The features in bedrock aquifers that have the strongest control on ground water P:U0117-GrandviewU-7-02 Grandview Watcr report.doc Page 2 ors occurrence and flow are fractures and faults. Recharge for this aquifer appears to be from sources both within and beyond the Bear Valley area (U.S.G.S. Water Resources Investigations Open -File Report 82-86). Some potential sources within the area include the streams that likely recharge the bedrock aquifers. Other potential sources outside the Bear Valley area include recharge from higher elevations to the rock fractures that are hydraulically connected to local aquifer systems. Aquifers and Well Yields Past ground water studies, conducted by TERRASAT, INC on the hillside in Anchorage, have suggested that most wells in bedrock aquifers will typically produce less than 0.5 gpm. This production rate is generally considered marginally adequate for single-family homes. The Municipality of Anchorage has determined that a well provides adequate water for a single family home if it produces 0.35 gpm per bedroom (150 gallons per day per bedroom). A well for a three-bedroom house, therefore, must produce just over 1.0 gpm to be considered adequate. Figure 3 shows the available well yield data for the local water wells. The data suggests that the bedrock aquifers in this area produce adequate water for typical single-family homes. The average yield based on the median value, for the local bedrock wells is over 6.0 gpm. Figure 4 shows the well depth for the local water wells.. Several close proximity wells are shown to intercept water at different depths. Initial interpretation of this data suggests that multiple aquifers exist beneath the area. Based on available well yield information, one well with a yield of less than 1.0 gpm exists within %2 mile of the proposed subdivision. This well is located on Lot 4, Block 2 of Bear Valley Subdivision and is 200 feet deep. This well derives its water from an unconsolidated aquifer at a depth of 195 feet. All other water wells appear to produce at least 2 gpm (Table 1). This suggests that most bedrock wells near the proposed Grandview Subdivision should produce 2.0 gpm and thus be able to support homes with at least 6 bedrooms. Local Geology and Bedrock Occurrence Available logs show that most of the wells within %2 mile of the proposed subdivision intercept bedrock at depths varying from 10 to 79 feet below ground surface. Only six of these wells encounter bedrock at depths less than 30 feet (Figure 5). These wells are cased to the bedrock interface or into unweathered bedrock and intercept fractures at varying depths. The bedrock fractures are the apparent source of water for these wells. Five of the wells near the proposed subdivision are completed in unconsolidated aquifers and get their water from sand or gravel (Figure 6). Static {Pater Levels Available logs show a range of static water levels from 0 to 175 feet below the top of casing at the time of drilling. We have placed the static water levels into several representative groups (Figure 7). Shallow static water levels in two wells near the southwest comer of Stolle Subdivision may suggest that these wells are hydraulically connected to the nearby stream. Deeper static water levels in the other wells in Stolle Subdivision may suggest that they are hydraulically connected to the stream to the northeast. This means that these two groups of wells are likely in different aquifers. A wide range of static water levels in Bear PA20117-Grandview%1-7-02 Grandview Water report.doc Page 3 of 5 Valley Subdivision suggests that wells on some adjacent lots may be getting water from different aquifers. Nitrate Occurrence TERRASAT, INC. compiled water quality information for 21 of the local water wells. Figure 8 shows that the nitrate concentrations range from 0.1 to 6.27 mg/L. The- hinhrc,� nitrate value occurs in a well of unknown depth, with a depth to rock of 40 feet. We presume that this well may have no grout seal at the bedrock interface and that nitrates likely enter this well around the casing. Previous studies of nitrate occurrence on the Anchorage Hillside have shown that wells without grout seals commonly have higher nitrate concentrations than those with grout seals. This is consistent with our conceptual model of how nitrates enter water wells. Our model allows for nitrates to move downward and along the soil/bedrock interface with the shallow ground water. Thus, the nitrates undergo minimal dilution before entering a well with no grout seal. CONCLUSIONS TERRASAT, INC has developed a conceptual geologic model for the Proposed Grandview Subdivision based on our review of the aerial photographs, hydrogeological reports, and available well logs. We conclude that the proposed subdivision is underlain by bedrock covered by a thin deposit of glacial till. The proposed subdivision sits on a northwest -facing slope. Possible fracture systems appear to trend northwest -southeast. These fractures appear to control the direction of surface water flow in the area flow. Based on the information provided from the well logs and observations from aerial photography, we conclude that local topographic features probably have little effect on regional ground water flow. The hydrogeology beneath the proposed subdivision is complex, but the ground water production ability of the area appears capable of supporting single-family residences with at least six bedrooms. Residential bedrock water wells in the area surrounding the Proposed Grandview Subdivision have a minimum average yield of 6 gpm, which is much greater than the consumptive need for a typical three-bedroom, single-family home. Based on our geological and hydrogeological evaluation of the area, residential, water wells in the proposed subdivision should have yields comparable to those in the surrounding subdivisions, assuming wells encounter subsurface fractures with water. We conclude that the aquifers identified in the surrounding area also likely underlie the Proposed Grandview Subdivision. These aquifers should produce adequate water for individual wells on each lot. Based on available information, the fracture systems exploited by local wells appear to be common throughout the area and are capable of producing usable quantities of water. Previous studies of this area suggest that significant recharge of the bedrock aquifers occurs from both inside and outside the local drainage basin. Based on this investigation, potential impacts to surrounding water wells from development of the proposed subdivision will likely be insignificant. Nitrate occurrence in water wells in the area surrounding the proposed subdivision does not appear to be a significant problem. A few wells in the area, however, are experiencing moderate levels of nitrate. These levels are below the regulated limit of 10 mg/L, but will P:\20117-Grandview\I-7-02 Grandview Water report.doc Page 4 of 5 likely increase with time. We presume that the sources for the nitrates are likely failing on- site septic systems. A failing septic system, together with an insufficient grout seal in the water well, may account for the elevated nitrate values observed. Percolation test data for the proposed subdivision show soil thickness greater than 14 feet. Well data from Stolle Subdivision show soil thickness from 24 to 36 feet. This information indicates that septic effluent will be subject to more natural filtration than common in other Hillside areas. This will likely tend to reduce the concentration of nitrates in shallow ground water at the soil/bedrock interface. RECOMMENDATIONS New water wells drilled in the proposed subdivision are likely to encounter bedrock at depths less than 40 feet. TERRASAT, INC. recommends that well construction include overdrilling by 20 feet and pressure grouting the well casing into the bedrock where bedrock is less than 40 feet deep. Please contact us at 344-9370 if you have any questions. 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O OI O 3 In n n n n:n n n n n'n n n n n 0 n n U V !:J .< �'�:rn rn rn. I� rn I I I I i i i l 'S'^ O. N vOii nlN WI N h ^ b N - S - N NI Q!O't0�1'br-Ib N'O,W�NIN b�P!Q IMI I� -, M- I N N - N- ry -• ry '� � N � .••• -. M.- M I M I I A Ifr"00 b 'Q'pMo•N Yl' -'00 h 00�Q.b 07 Q�Q� 00 M N QI I C C o '�_^!o S e c Sl 1• u '. o• 'n b — inn — o� �. o0 00 ,1n 1�-P.— b n I A 1to� 1❑�.' L' ,: ,i, ' :N`C %a:Vw ,— <�au€y1J WW k" 1L� eqaz V0z.pW.1 'g�zGa•j_V 0 rn tl VLU Oayw Ix j5 o O❑ U� �i Iz uza.�aT •:v�A rn, i ,O NNp, I .pM bbM .M.S N h -' .Q •a , ,N . .• N N 'N .• rvN � C 1 2 3 4 5 6 0 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments, Inc. DATE PERFORMED: 3/9/01 LEGAL DESCRIPTION: Lot 1. Grandview TEST HOLE # 1-1 SLOPE OG/OL WAS GROUNDWATER ENCOUNTERED? HD S L IF YES, WHAT DEPTH? 0 DEPTH OF WATER 11• P AFTER MONITORING: E DATE: 5/22/2001 IKOu6 E AND RUM No. U4301 >t SITE PLAN N See Site Plan See Site Plan READING DATE Silty Gravel ' with Sand Hyl GM 10:10 12.0" 1 10:40 30 7" 5" Recharge 10:41 12.0" 2 11:11 30 8" 4" Recharge 1 11:12 1 1 12 0" 3 11:42 30 8" 4. v BOH - 14 i ?r WAS GROUNDWATER ENCOUNTERED? HD S L IF YES, WHAT DEPTH? 0 DEPTH OF WATER 11• P AFTER MONITORING: E DATE: 5/22/2001 IKOu6 E AND RUM No. U4301 >t SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/9/01 10:10 12.0" 1 10:40 30 7" 5" Recharge 10:41 12.0" 2 11:11 30 8" 4" Recharge 1 11:12 1 1 12 0" 3 11:42 30 8" 4. PERC RATE: 7.5 MIN./INCH PERC. HOLE DIAMETER:_ " TEST RUN BETWEEN 5.0 FT. AND 6.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL , ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments Inc. DATE PERFORMED: 3/9/2001 LEGAL DESCRIPTION: lot 1. Grandview TEST HOLF # 1-2 SLOPE SITE PLAN I ___r//A OG/OL 2 3 GROSS TIME NET TIME DEPTH OF WATER NET DROP Well Graded Sand L. ' with Gravel r 11:15 15 ` SW Recharge 11:16 12.0" 2 5 . •; .5" 11.5" Recharge I 1 11:32 1 6 12.0" 7 .. 15 11.5" 8 9 17 C toS a, V) Ln WAS GROUNDWATER ENCOUNTERED? NO BOH - 10' IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: .;+ _ 69th �•„ e� N[NAEL C AMRN No. aAug S L 0 P E N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/9/01 11:00 12,0" 1 11:15 15 1" 11" Recharge 11:16 12.0" 2 11:31 15 .5" 11.5" Recharge I 1 11:32 1 12.0" 3 11:47 15 11.5" PERC RATE: 1.4 MIN./INCH PERC. HOLE DIAMETER: 6" TEST RUN BETWEEN5,0 FT. AND 6.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL , ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 2 3 4 5 6 7 8 9 K 11 17 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG -PERCOLATION TEST PERFORMED FOR: Stolle Investments Inc. DATE PERFORMED: 3/9/2001 LEGAL DESCRIPTION: Lot 2. Grandview TEST HOLE # 2-1 SLOPE OG/OL/PT II Well Graded Gravel with Sand . GW/SW 0 WAS GROUNDWATER ENCOUNTERED? NO S L IF YES, WHAT DEPTH? 0 DEPTH OF WATER 7. P AFTER MONITORING: E DATE: 5/22/2001 SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/9/01 14:00 12.0- 1 14:15 30 5" 7" Recharge 14:16 12.0" 2 14:31 30 5" 7" Recharge 1 14:32 12.0" 3 14:47 30 PERC RATE: 2.1 MIN./INCH PERC. HOLE DIAMETER:_ " TEST RUN BETWEEN 6.0 FT. AND 7.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TRK I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 2 3 4 5 6 7 8 9 I( I I 17 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments- Inc. DATE PERFORMED: 3/9/2001 LEGAL DESCRIPTION: Lot 2. Grandview TEST HOLE # 2-2 SLOPE SITE PI ON OG/OL/PT Well Graded Gravel with Sand _1 GW/SW `:•', 0 •`Of P E... BOH - 13.5' CL N WAS GROUNDWATER ENCOUNTERED? NO S NET TIME L IF YES, WHAT DEPTH? O DEPTH OF WATER None P AFTER MONITORING: E ss WHAR C ANDERSON No. Q -Un DATE: 5/22/2001 N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/9/01 15:00 12.0- 1 15:15 15 6" 6" Recharge 15:16 12.0" 2 15:31 15 6" 6" Recharge 1 15:32 1 12.0" 3 15:47 15 6" FERC RATE: 2.5 MIN./INCH FERC. HOLE DIAMETER:_ TEST RUN BETWEEN 7.0 FT. AND 8.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK I. MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 1.700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments, Inc. DATE PERFORMED: 3/10/2001 LEGAL DESCRIPTION: Lot 2. Grandview 2- 3- 4- 6 34 6 l,'• 7 i 9 012 10- 121 17 TEST HOLE # 3-2 REDDISH ORGANIC SILTY -SANDS Poorly Graded Gravel GP Sillier WAS GROUNDWATER SLOPE ENCOUNTERED? NO S NET TIME L IF YES, WHAT DEPTH? O DEPTH OF WATER P AFTER MONITORING: E DATE: 11:40 BOH - 13' ��P�swge1 OF 40* �,»..i. 49th r .�. ........».........»»n LAWEASM �1 No. Cr400 SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/10/01 11:10 12.0- 1 11:40 30 10" 2" Recharge 11:41 12.0" 2 12:11 30 10" 2" Recharge 12:12 1 12.0" 3 12:42 30 10" FERC RATE: 15 MIN./INCH FERC. HOLE DIAMETER:_ " TEST RUN BETWEEN 6.0 FT. AND 7.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK 1, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: — Stolle Investments, Inc. DATE PERFORMED: 3/9/2001 LEGAL DESCRIPTION: lot 2. Grandview TEST HOLE # 3-1 SLOPE 2 3 4 5 6 7 8 9 ... 10- 11 17 OG/OL Poorly Graded Silty Gravel with Sand GM WAS GROUNDWATER ENCOUNTERED? NO S L IF YES, WHAT DEPTH? O BOH - 10' P DEPTH OF WATER AFTER MONITORING: E DATE: I" Moon L uama No. aA)41 .pROFESSION� SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/9/01 16:00 12.0" 1 16:30 30 10.5" 1.5" Recharge 16:31 12.0" 2 17:01 30 10.5" 1.5" Recharge 17:02 1 12.0" 3 17:32 30 10.5' PERC RATE: ...20 MIN./INCH PERC. HOLE DIAMETER: TEST RUN BETWEEN 5.0 FT. AND 6.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments, Inc. DATE PERFORMED: 3/9/2001 LEGAL DESCRIPTION: Lot 2. Grandview TEST HOLE # 5-1 SLOPE REDDISH ORGANIC SILTY -SANDS 2 :m 3 4 13 BOH - 41516 14- 15- 16 17 Poorly Graded Sand SP Siltier WAS GROUNDWATER ENCOUNTERED? NO S NET TIME L IF YES, WHAT DEPTH? 0 DEPTH OF WATER None P AFTER MONITORING: E 0 ncwtt t uocasoe No. a4m DATE: 5/22/2001 SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/9/01 9:15 12.0" 1 9:45 30 1" 11" Recharge 9:46 12.0" 2 10:16 30 1" 11" Recharge 1 1 10:17 12.0" 3 10:47 30 1" PERC RATE: 2.7 MIN./INCH PERC. HOLE DIAMETER: 6" TEST RUN BETWEEN 6.0 FT. AND 7.0 FT• COMMENTS: Test Hole Pre Soatied Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 2 3 4 5 6 7 8 9 K I I 17 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments. Inc. DATE PERFORMED: 5/6/2004 LEGAL DESCRIPTION: Lot 3. Grandview TEST HOLE # 29 SLOPE OG/OL Poorly Graded Silty Gravel with Sand GP Cobbles to 4" BOH - 18' WAS GROUNDWATER ENCOUNTERED? NO S L IF YES, WHAT DEPTH? 0 DEPTH OF WATER P AFTER MONITORING: E DATE: SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 5/6/04 3:09 8" Silty Gravel 1 Gray 10 GM 8" Recharge 3:20 8" •, R ••'• 1•'-i�� 10 �4:, 8" Recharge 3:31 WA 8" 3 341 10 Dry BOH - 18' WAS GROUNDWATER ENCOUNTERED? NO S L IF YES, WHAT DEPTH? 0 DEPTH OF WATER P AFTER MONITORING: E DATE: SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 5/6/04 3:09 8" 1 3:19 10 Dry 8" Recharge 3:20 8" 2 3:30 10 Dr 8" Recharge 3:31 8" 3 341 10 Dry PERC RATE: 1.25 MIN./INCH PERC. HOLE DIAMETER: 6" TEST RUN BETWEEN 50 FT. AND 6.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 2 3 4 5 6 7 8 9 I( I I 17 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 SOILS LOG PERCO ATION PROJECT #: - L TEST PERFORMED FOR: Stolle Investments, Inc. DATE PERFORMED: 5/6/2004 LEGAL DESCRIPTION: lot 3. Grandview TEST HOLE # 30 OG/OL Poorly Graded Silty Gravel with Sand GP/GM Cobbles to 4" WAS GROUNDWATER SLOPE ENCOUNTERED? NO S NET TIME L IF YES, WHAT DEPTH? O DEPTH OF WATER P AFTER MONITORING: E DATE: 4:21 BOH - 19' SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 5/6 4:11 8•• 1 4:21 10 Dry 8" Recharge 4:22 8" 2 4:32 10 Dry 8" Recharge 1 4:33 1 1 8" 3 4:43 10 Dry PERC RATE: 1.25 MIN./INCH PERC. HOLE DIAMETER: TEST RUN BETWEEN 0 FT. AND 6.0 FT• COMMENTS: Test Hole Pre Soaked Prior to Percolation Test, TEST PERFORMED BY: AH I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments, Inc. DATE PERFORMED: 3/10/2001 LEGAL DESCRIPTION: Lot 3. Grandview TEST HOLE # 4-2 SLOPE 1 REDDISH ORGANIC I I SILTY -SANDS 2 3 4 5 6 7 8 9 R 11 17 Poorly Graded Sand SP Sillier WAS GROUNDWATER ENCOUNTERED? NO S NET TIME L IF YES, WHAT DEPTH? 0 DEPTH OF WATER None P AFTER MONITORING: E DATE: 5/22/2001 SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/10/2001 14:45 12.0" 1 15:15 30 9" 3" Recharge 15:16 12.0" 2 15:46 30 9" 3" Recharge 15:47 12.0" 3 16:17 30 9.. PERC RATE: 10 MIN./INCH PERC. HOLE DIAMETER: 6" TEST RUN BETWEEN 5 0 FT. AND 6.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 1 2 3 4 5 6 7 8 9 K 11 17 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments, Inc. DATE PERFORMED: 3/13/2001 LEGAL DESCRIPTION: Lot 3. Grandview TEST HOLE # 5-2 SLOPE a OG/OL Well Graded Sand ,. SW Well Graded Gravel a GW WAS GROUNDWATER ENCOUNTERED? NO S L IF YES, WHAT DEPTH? 0 DEPTH OF WATER None P AFTER MONITORING: E DATE: 5/22/2001 49t !N WKAEL E ANDERSON No. Cfrin BOH -17' SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/13/01 7:30 12.0" 1 7:40 10 2" 10" Recharge 7:41 11.0" 2 7:51 10 2" 1011 Recharge 7:52 12.0" 3 8:02 10 r 10" PERC RATE: 1 MIN./INCH PERC. HOLE DIAMETER: 6„ TEST RUN BETWEEN 7.0 FT. AND 8.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 SOILS LOG PERCOLATION TEST PROJECT #: PERFORMED FOR: Stolle Investments, Inc. DATE PERFORMED: 5/6/2004 LEGAL DESCRIPTION: Lot 4. Grandview TEST HOLE # 31 17 Bedrock WAS GROUNDWATER SLOPE ENCOUNTERED? NO S L IF YES, WHAT DEPTH? 0 DEPTH OF WATER P AFTER MONITORING: E DATE: WHut Lumcxsa No. [4011 SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME OG/OL DEPTH OF WATER 2 Start Poorly Graded Silty 8" Gravel with Sand 3-GP/GM 10:44 30 5.5" 2.5" Recharge 10:45 -20% Silt 4 2 11:15 30 5.75" 2.25" Recharge 11:16 1 1 8" Cobbles to 4" 5 30 .7 " 6 :. t 9 ,. %- . q 10 12 Some Fractured Rock 13 •'�... b* OF .� ' • '/ 49th �._ ..:A ........ t...... 17 Bedrock WAS GROUNDWATER SLOPE ENCOUNTERED? NO S L IF YES, WHAT DEPTH? 0 DEPTH OF WATER P AFTER MONITORING: E DATE: WHut Lumcxsa No. [4011 SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 5/7/1004 10:14 8" 1 10:44 30 5.5" 2.5" Recharge 10:45 8" 2 11:15 30 5.75" 2.25" Recharge 11:16 1 1 8" 3 1146 30 .7 " PERC RATE: 13.3 MIN./INCH PERC. HOLE DIAMETER: 6" TEST RUN BETWEEN_ 0 FT. AND 6.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments, Inc. DATE PERFORMED: 3/11/2001 LEGAL DESCRIPTION: Lot 4. Grandview TEST HOLE # 6-1 1 2 GROSS TIME OG/OL DEPTH OF WATER NET DROP Start 3/11/01 . y.: 1 9:45 30 10.5" 1.5" Silty Gravel with Sand 12" 3 ;:•, : SM 30 o 1.5" Recharge 10:17 12.0" d 3 4 30 los- d d 5 6 7 6" to 12" Cobbles a WAS GROUNDWATER CJ ENCOUNTERED? NO S L 10 .• ` IF YES, WHAT DEPTH? Q DEPTH OF WATER 9' P I •' ' •' AFTER MONITORING: E DATE: 5/22/2001 12 BOH - 12' 17 SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/11/01 9:15 12.0" 1 9:45 30 10.5" 1.5" Recharge 9:46 12" 2 10:16 30 10.5" 1.5" Recharge 10:17 12.0" 3 10:47 30 los- PERC RATE: 10_ MIN./INCH PERC. HOLE DIAMETER: 6" TEST RUN BETWEEN 6.0 FT. AND 7.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 1.700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments, Inc. DATE PERFORMED: 3/11/2001 LEGAL DESCRIPTION: Lot 4. Grandview TEST HOLE # 6-2 1 2 GROSS TIME OG/OL DEPTH OF WATER NET DROP Start 3/11/01 11:00 12.0" 1 11:30 30 11" 1" Silty Gravel with Sand A 12.0" 3 ;:•, : GM 30 u 1" Recharge 12:02 12.0" d 3 12:32 30 11" • i d N � . 5-- 6" to 12" Cobbles 6 7 BOH - 7' 8 - WAS GROUNDWATER 9 ENCOUNTERED? NO S L 10 IF YES, WHAT DEPTH? O DEPTH OF WATER P 11 AFTER MONITORING: E DATE: 12 4 17J . noun. E uocasox No. tt-tui SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/11/01 11:00 12.0" 1 11:30 30 11" 1" Recharge 11:31 12.0" 2 12:01 30 11" 1" Recharge 12:02 12.0" 3 12:32 30 11" PERC RATE: 3_ MIN./INCH PERC. HOLE DIAMETER: 6" TEST RUN BETWEEN 4.0 FT. AND 5.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL F. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments, Inc. DATE PERFORMED: 3/11/2001 LEGAL DESCRIPTION: Lot 4. Grandview TEST HOLE # 7-1 SLOPE 1 2 S OG/OL L IF YES, WHAT DEPTH? 0 DEPTH OF WATER None P AFTER MONITORING: E 1 13:30 Well Graded Gravel 3 ;:•, : with Sand 13:31 GW 4 2 14:01 30 1" 11" 5 1 14:02 1 12.0" " % Slightly Compact 6 :.: 1" 7 8 9 10 I I 12 17 4? 49 WAS GROUNDWATER ENCOUNTERED? NO S NET TIME L IF YES, WHAT DEPTH? 0 DEPTH OF WATER None P AFTER MONITORING: E WM 114 ANDERSON No. tt-tui >P DATE: 5/22/2001 SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/11/01 13:00 12.0" 1 13:30 30 1" 11" Recharge 13:31 12.0" 2 14:01 30 1" 11" Recharge 1 14:02 1 12.0" 3 14:32 30 1" 1" PERC RATE: 2.7 MIN./INCH FERC. HOLE DIAMETER: = TEST RUN BETWEEN 6.0 FT. AND 7.0 T. COMMENTS: Test Hole Pre Soalied Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL F. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments, Inc. DATE PERFORMED: 5/6/2004 LEGAL DESCRIPTION: Lot S. Grandview TEST HOLE # 43 SLOPE OG/OL/PT II 2 S NET TIME L IF YES, WHAT DEPTH? 0 3 .;: ` GM E DATE: 2:40 30 5.25" 2.75" Recharge 2:41 8" 2 3:11 ;';;':• Tan to Olive 5-1 :., . 1 3:12 1 8" 3 3:42 30 6 <•, :� 7- 9 9 s• Sloughing 10 -12% Silt 17 4q4bWlFractured Rock Bedrock WAS GROUNDWATER ENCOUNTERED? NO S NET TIME L IF YES, WHAT DEPTH? 0 DEPTH OF WATER P AFTER MONITORING: E DATE: 2:40 SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 5/6/2004 2:10 8" 1 2:40 30 5.25" 2.75" Recharge 2:41 8" 2 3:11 30 5.5" 2.5" Recharge 1 3:12 1 8" 3 3:42 30 PERC RATE: _2 MIN./INCH PERC. HOLE DIAMETER: TEST RUN BETWEEN 4.0 FT. AND 5.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments, Inc. DATE PERFORMED: 3/11/1001 LEGAL DESCRIPTION: Lot S. Grandview TEST HOLE # 7-2 SLOPE SITE PLAN 1 GROSS TIME OG/OL DEPTH OF WATER NET DROP Start 3/11/01 15:00 12.0" 1 2 30 1.S" 10.5" Recharge 15:31 12.0" 2 16:01 30 Well Graded Gravel 10.5" Recharge 1 3 ;:: 12.0" 3 16:32 30 with Sand 10.S" a .. GW d ) 4 d 5 Slightly Compact 6 :.':.. 7 g WAS GROUNDWATER 9 •• ,• ENCOUNTERED? NO 10 IF YES, WHAT DEPTH? BOH - 10' DEPTH OF WATER None II AFTER MONITORING: _ DATE: 5/22/2001 17 t L ;. 69th No. Cu)st S L 0 P E See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/11/01 15:00 12.0" 1 15:30 30 1.S" 10.5" Recharge 15:31 12.0" 2 16:01 30 1.5" 10.5" Recharge 1 16:02 12.0" 3 16:32 30 1.5" 10.S" PERC RATE: 2.9 MIN./INCH PERC. HOLE DIAMETER:_ " TEST RUN BETWEEN 5.0 FT. AND 6.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 1 2 3 4 5 6 17 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments Inc. DATE PERFORMED: 5/6/2004 LEGAL DESCRIPTION: lot 6. Grandview TEST HOLE # 35 SLOPE OG/OL "15% Silt .75" Nominal Fractured Rock WAS GROUNDWATER ENCOUNTERED? NO S NET TIME L IF YES, WHAT DEPTH? 0 DEPTH OF WATER P AFTER MONITORING: E DATE: 11:39 . 49th NCMAn L ANDERSON No. (14381 >o - SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 5/6 11:09 8" 1 11:39 30 5.25" 2.75" Recharge 11:40 8" 2 12:10 30 5.5" 2.5' Recharge 1 1 12:11 1 8" 3 12:41 30 PERC RATE: . 12 MIN./INCH PERC. HOLE DIAMETER:_ " TEST RUN BETWEEN 3.0 FT. AND 4.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH I, MICHAEL , AND R ON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 SOILS LOG - PERCOLATION TEST PROJECT #: PERFORMED FOR: Stolle Investments, Inc. DATE PERFORMED: 5/6/2004 LEGAL DESCRIPTION: Lot 6. Grandview TEST HOLE # 36 I 111A OG/OL/PT 2 S NET TIME L NET DROP 0 3 P GP E ;'; 5:24 10 Dry 8" Recharge 5:25 8" Rust to Dark Gray 5:35 10 .75" Nominal 5 :., . 5:36 6 8" 3 5:46 10 7 y •: 8 .. 9 . y.: 10 I I 17 Bedrock WAS GROUNDWATER ENCOUNTERED? IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: NO S NET TIME L NET DROP 0 5/6/2004 5:14 P 8" E SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 5/6/2004 5:14 8" 1 5:24 10 Dry 8" Recharge 5:25 8" 2 5:35 10 Dr 8" Recharge 5:36 8" 3 5:46 10 Dry FERC RATE: 1.25 MIN./INCH PERC. HOLE DIAMETER: TEST RUN BETWEEN 5.0 FT. AND 6.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 . MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/ BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments, Inc. DATE PERFORMED: 3/13/2001 LEGAL DESCRIPTION: lot 6. Grandview TEST HOLE # 8-1 SLOPE 1444 2 OG/OL DEPTH OF WATER NET DROP Start 3/13/01 9:10 12.0" 1 :•; Well Graded Gravel 2" 10" with Sand 4 GW 2 9:31 10 2" 10" 5 9:32 12.0" Slightly Compact 6 10 2.. 7 8 9 .•.s 10 12 . . BOH - 12' 17 u WAS GROUNDWATER ENCOUNTERED? HD S L IF YES, WHAT DEPTH? O DEPTH OF WATER P AFTER MONITORING: E DATE: MCRALL C YIKRSOR No. u4ni r] SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/13/01 9:10 12.0" 1 9:20 10 2" 10" Recharge 9:21 12.0" 2 9:31 10 2" 10" Recharge 9:32 12.0" 3 9:42 10 2.. 10" PERC RATE: 1 MIN./INCH PERC. HOLE DIAMETER: TEST RUN BETWEEN 50 FT. AND 6.0 T. COMMENTS: Test Hole Pre SoAed Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: S/9/2004 MUNICIPALITY OF ANCHORAGE DEPARTMENT OF HEALTH 8 HUMAN SERVICES 825 L STREET, ANCHORAGE, AK 99502-0605 SOILS LOG - PERCOLATION TEST PROJECT #: PERFORMED FOR: Stolle Investments, Inc. DATE PERFORMED: _ 3/13/2001 LEGAL DESCRIPTION: Lot 6. Grandview TEST HOLE # 8-2 SLOPE SITE PLAN N See Site Plan 2 GROSS TIME OG/OL . NET DROP y.: 10:15 . Well Graded Gravel 3 ;:•, with Sand 4 .. GW 10:46 12.0" 5 2 11:16 30 7.25" Slightly Compact 6 11:17 7 3 1 8 30-1 72S" 1 1. " 9 10-F I I 12 :.::. 13 ����.)f BOH - 13 �•,'o�E.a 17 L7 M Ln N WAS GROUNDWATER ENCOUNTERED? NO S L IF YES, WHAT DEPTH? 0 DEPTH OF WATER 9• P AFTER MONITORING: E DATE: 5/22/2001 MDLUt LMU RSOM Na. Ct4I41 See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/13/01 10:15 12.0" 1 10:45 30 7.5" 4.5" Recharge 10:46 12.0" 2 11:16 30 7.25" 4.75" Recharge 1 11:17 120" 3 1 11:47 1 30-1 72S" 1 1. " PERC RATE: 6.3 MIN./INCH PERC. HOLE DIAMETER: 6" TEST RUN BETWEEN 5.0 FT. AND 6.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 1 2 3 4 I MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments, Inc. DATE PERFORMED: 5/6/2004 LEGAL DESCRIPTION: Lot 6. TEST HOLE # OG/OL Bedrock 4i 49th 8-3 SLOPE WAS GROUNDWATER ENCOUNTERED? NO S 'A GM IF YES, WHAT DEPTH? 0 *• -15% Silt AFTER MONITORING: E DATE: 6:54 Dry :•A Recharge 6:55 8" 2 7:05 10 Dry 8" Recharge 7:06 8" 1" - 1.5" Nominal 3 Cobbles to 6" 10 Dry Bedrock 4i 49th 8-3 SLOPE WAS GROUNDWATER ENCOUNTERED? NO S NET TIME L IF YES, WHAT DEPTH? 0 DEPTH OF WATER P AFTER MONITORING: E DATE: 6:54 MDUR E uoaso■ No. a.avi ;PROFESStON� >f SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 5/6/04 6:44 8" 1 6:54 10 Dry 8" Recharge 6:55 8" 2 7:05 10 Dry 8" Recharge 7:06 8" 3 7:16 10 Dry PERC RATE: 1.25 MIN./INCH PERC. HOLE DIAMETER:_ " TEST RUN BETWEEN 5.0 FT. AND 6.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH I, MICHAEL E. ANDERSON• CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEPARTMENT OF HEALTH a HUMAN SERVICES 825 L STREET, ANCHORAGE, AK 99502-0605 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments Inc LEGAL DESCRIPTION: Lot 7 Grandview TEST HOLE # 10-1 SLOPE 1 2 GROSS TIME OG/OL DEPTH OF WATER 3 Start 3/13/01 Poorly Graded Silty 12,0" Sand with Cobbles 4 17:30 SP 9" 3" Recharge 5 --Slightly 12,0" 2 Compact 6 9" 3" 7 18;02 1 8- 3 1 q_ q 9" 10 BOH - 10' 17 E. 4 WAS GROUNDWATER ENCOUNTERED') HD S L IF YES, WHAT DEPTH? O DEPTH OF WATER P AFTER MONITORING: E DATE: WHAEL L ANDERSON No ¢-&Iv DATE PERFORMED: 3/13/2001 SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/13/01 17:00 12,0" 1 17:30 30 9" 3" Recharge 17:31 12,0" 2 1801 30 9" 3" Recharge 1 1 18;02 1 1 12 0" 3 1 18:32 30 9" PERC RATE: 10 MIN./INCH PERC. HOLE DIAMETER: 6" TEST RUN BETWEEN 50 FT. AND 6.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL F. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 2 3 4 5 6 7 8 9 12 17 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments, Inc. DATE PERFORMED: 3/13/2001 LEGAL DESCRIPTION: Lot 7. Grandview TEST HOLE # 9-1 SLOPE SITE PLAN N See Site Plan OG/OL Well Graded Gravel with Sand GW Slightly Compact .t BOH - 12' WAS GROUNDWATER ENCOUNTERED? IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: '.�W&VS'LUVAVA a + 49th �,�.. •y •• MmAEL C AIDEMN ....thy No. EE -tui NO S L 0 None E 5/22/2001 See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/13/2001 12:10 12,0" 1 12:10 10 2" 10" Recharge 11:21 12.0" 2 12:31 10 2" 10" Recharge 12:32 12.0" 3 12:42 10 PERC RATE: I MIN./INCH PERC. HOLE DIAMETER: 6" TEST RUN BETWEEN SO FT. AND 6.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TRK I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 2 3 4 5 6 7 8 9 17 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments, Inc. DATE PERFORMED: 3/13/2001 LEGAL DESCRIPTION: Lot 7. Grandview TEST HOLE # 9-2 OG/OL 4 WAS GROUNDWATER ENCOUNTERED? NO S NET TIME L IF YES, WHAT DEPTH? Well Graded Gravel DEPTH OF WATER None with Sand AFTER MONITORING: GW 1 14:40 30 6" 6" Slightly Compact 14:41 12.0" 2 15:11 30 6" •. Recharge S 12.0" 3 15:42 30 6" B0H-12' 4 WAS GROUNDWATER ENCOUNTERED? NO S NET TIME L IF YES, WHAT DEPTH? 0 DEPTH OF WATER None P AFTER MONITORING: E No. cfA3$1 DATE: 5/22/2001 SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/13/01 14:10 12.0" 1 14:40 30 6" 6" Recharge 14:41 12.0" 2 15:11 30 6" 6" Recharge 15:12 12.0" 3 15:42 30 6" PERC RATE: _5 MIN./INCH PERC. HOLE DIAMETER: 6„ TEST RUN BETWEEN 5.0 FT. AND 6.0 FT• COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments Inc. DATE PERFORMED: 5/6/2004 LEGAL DESCRIPTION: Lot a Grandview TEST HOLE # 32 SLOPE 2 3 4 5 6 7 8 9 17 OG/OL Silty Gravel with Sand GM -15% Silt GP Dark Gray WAS GROUNDWATER ENCOUNTERED? NO IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: WMIX [. M"RSON No. rr.aui S L 0 P E SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 5/6/04 2:22 8" 1 2:52 30 Dr 8" Recharge 2:53 8" 2 3:23 30 Cr 8" Recharge 3:24 8" 3 3:54 30 Dry PERC RATE: . 4.5 MIN./INCH PERC. HOLE DIAMETER: TEST RUN BETWEEN 30 AND 4.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments. Inc. DATE PERFORMED: 5/6/2004 LEGAL DESCRIPTION: Lot a Grandview TEST HOLE # 33 SLSSITE PLAN -, I 2 4 5 6 13 14 15 16 17 OG/OL GP Transitioning to Fractured Rock .15% Silt Bedrock Fractured Rock a WAS GROUNDWATER ENCOUNTERED? IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: W"n E AWER No. r41A1 a NO S 0 P E N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME GP NET DROP Start 5/6/04 „ •.: 3/4"-1" 8" 1 Dark Gray Bedrock Fractured Rock a WAS GROUNDWATER ENCOUNTERED? IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: W"n E AWER No. r41A1 a NO S 0 P E N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 5/6/04 7:12 8" 1 7:22 10 Dry 8" Recharge 7:23 8" 2 7:33 10 Dry 8" Recharge 1 1 7:34 1 1 8" 3 7:44 10 ---Dry 8- PERC RATE: 1.25 MIN./INCH FERC. HOLE DIAMETER: 6" TEST RUN BETWEEN 5.0 FT. AND 6.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 SOILS LOG - PERCOLATION TEST PROJECT #: PERFORMED FOR: Stolle Investments Inc. DATE PERFORMED: 5/6/2004 LEGAL DESCRIPTION: Lot a Grandview TEST HOLE # 34 SLOPE SITE PLAN 1 GROSS TIME OG/OL 2 NET DROP Start 5/6/04 3 GM/GP 1 7:43 10 Dr 8" Recharge 7:44 8" 2 7:54 10 Dr 5 Recharge I 1 7:55 8" 3 8:05 10 6 a, s 0 12 17 Bedrock GP 3/4""1.5" Dark Gray WAS GROUNDWATER ENCOUNTERED? NO IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: S L 0 P E N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 5/6/04 7:33 8" 1 7:43 10 Dr 8" Recharge 7:44 8" 2 7:54 10 Dr 8" Recharge I 1 7:55 8" 3 8:05 10 r PERC RATE: .2_ MIN./INCH PERC. HOLE DIAMETER: TEST RUN BETWEEN 4.0 FT. AND 5.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments. Inc. DATE PERFORMED: 5/6/2004 LEGAL DESCRIPTION: Lot 9 Grandview TEST HOLE # 41 SLOPE SITE PLAN MOG/OL/PT 2 3 4 5 6 7 8 9 17 Olive with Gray Coarse Sand and Gravel WAS GROUNDWATER ENCOUNTERED? IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: NO S L 0 P E N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 5/6/04 8:03 8" 1 8:13 10 Dr 8" Recharge 8:14 8" 2 8:24 10 Dr 8" Recharge 1 1 8:25 8" 3 8:35 10 Dry PERC RATE: 1.25 MIN./INCH PERC. HOLE DIAMETER: TEST RUN BETWEEN 4.0 FT. AND 5.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/ BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments Inc. DATE PERFORMED: 5/6/2004 LEGAL DESCRIPTION: Lot 9 Grandview TEST HOLE # 42 SLOPE SITE PLAN OG/OL/PT 2 3 4 :} 6 < •; 7 "- 8 9n W, 17 Bedrock GM Olive with Gray Coarse Sand and Gravel Rock WAS GROUNDWATER ENCOUNTERED? IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: C; MCKAEL G AMDERMN No. a-4181 a Lu a, N NO L 0 P E N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 5/6/04 8:36 8" 1 8:46 10 Dry 8" Recharge 8:47 8" 2 8:57 10 Dr 8" Recharge 1 1 8:58 8" 3 9:08 10 Dry PERC RATE: 1.25 MIN./INCH PERC. HOLE DIAMETER: TEST RUN BETWEEN 5.0 FT. AND 6.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 2 3 4 5 6 7 8 9 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments Inc. DATE PERFORMED: 5/6/2004 LEGAL DESCRIPTION: Lot 10 Grandview TEST HOLE # 27 SLOPE SITE PLAN OG/OL BOH -8' Bedrock WAS GROUNDWATER ENCOUNTERED? NO 10 IF YES, WHAT DEPTH? DEPTH OF WATER 11 AFTER MONITORING: DATE: 12 17 L7 wcwn E MMRSO l No. CL4LI S L 0 P E N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 5/6/04 5:10 ;'•:;..:''< Poorly Graded Silty • Gravel with Sand ti•; GM 12" Recharge 5;51 -12% Silt BOH -8' Bedrock WAS GROUNDWATER ENCOUNTERED? NO 10 IF YES, WHAT DEPTH? DEPTH OF WATER 11 AFTER MONITORING: DATE: 12 17 L7 wcwn E MMRSO l No. CL4LI S L 0 P E N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 5/6/04 5:10 12.0" 1 5:50 30 Dry 12" Recharge 5;51 12.0" 2 6:21 30 Dry 12" Recharge 6:22 12.0" 3 6:52 30 Dry 1 " PERC RATE: 2.5 MIN./INCH PERC. HOLE DIAMETER: TEST RUN BETWEEN_ 0 FT. AND 4.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/ BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM PROJECT #: 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments Inc. DATE PERFORMED: 5/6/2004 LEGAL DESCRIPTION: Lot 10 Grandview TEST HOLE # 2e SLOPE 2 3 4 5 6 7 8 9 17 OG/OL Poorly Graded Silty Gravel with Sand GM .15% Silt WAS GROUNDWATER ENCOUNTERED? NO Coarse Fractured IF YES, WHAT DEPTH? Rock DEPTH OF WATER AFTER MONITORING: DATE: BOH - 12' Bedro S L 0 P E SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 5/6/2004 5:20 12.0" 1 5:50 30 6.5" 5.5" Recharge 5:51 12.0" 2 6:21 30 6.75" 5.25" Recharge 6:22 12.0" 3 6:52 30 6.15" PERC RATE: 5.7 MIN./INCH PERC. HOLE DIAMETER: 6_ TEST RUN BETWEEN 3.0 FT. AND 4.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: AH I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM L700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments Inc. DATE PERFORMED: 3/14/2001 LEGAL DESCRIPTION: Lot 11 Grandview TEST HOLE #11-2 SLOPE SITE PLAN Fd 3 5 6 :. 7 8- 9 17 OG/OL Well Graded Silty T Sand with Gravel in SW v1 WAS GROUNDWATER ENCOUNTERED? NO S L IF YES, WHAT DEPTH? 0 -10* P DEPTH OF WATER None AFTER MONITORING: E DATE: 5/22/2001 4'1 49th No. U4311 N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/14/01 9:00 12.0" 1 9:10 10 Dry 12" Recharge 9:11 12.0" 2 9:21 10 Dry 12" Recharge I I 9:22 12.0" 3 9:32 10 Dry PERC RATE: -1 MIN./INCH FERC. HOLE DIAMETER: 6" TEST RUN BETWEEN 5 0 FT. AND 6.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments Inc. _ DATE PERFORMED: 3/14/2001 LEGAL DESCRIPTION: Lot 11 Grandview TEST HOLE # 12-1 SLOPE 2 3 4 5 6 7 8 9 17 OG/OL A s. 2 1%N a, N WAS GROUNDWATER Well Graded Silty ENCOUNTERED? NO Sand with Gravel NET DROP L IF YES, WHAT DEPTH? SW 12.0" P DEPTH OF WATER 11' 10:20 AFTER MONITORING: E DATE: 5/22/2001 Recharge 10:21 12.0" 2 1 10:51 30 5.5" 6.5" Recharge 10:52 12.0" 3 11:22 30 0).. i? , 49th BOH - 14 A s. 2 1%N a, N WAS GROUNDWATER GROSS TIME ENCOUNTERED? NO S NET DROP L IF YES, WHAT DEPTH? O 12.0" P DEPTH OF WATER 11' 10:20 AFTER MONITORING: E DATE: 5/22/2001 Recharge na91. L MURSON No. cuui >f SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/14/01 9:50 12.0" 1 10:20 30 5.5" 6.5" Recharge 10:21 12.0" 2 1 10:51 30 5.5" 6.5" Recharge 10:52 12.0" 3 11:22 30 FERC RATE: 4.6 MIN./INCH FERC. HOLE DIAMETER: 6" TEST RUN BETWEEN TO FT. AND 8.0 T. COMMENTS: Test Hole Pre Soalied Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 PROJECT #: SOILS LOG - PERCOLATION TEST PERFORMED FOR: Stolle Investments, Inc. DATE PERFORMED: 3/14/2001 LEGAL DESCRIPTION: lot 11 Grandview TEST HOLE # 26 SLOPE 0SITE PLAN 2 3 4 5 6 7 8 9 17 OG/OL WAS GROUNDWATER ENCOUNTERED? IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: M1uEL C ANDERSON No. R -URI NO S L 0 P E N See Site Plan See Site Plan READING DATE Well Graded Silty •: Sand with Gravel NET DROP Start 3/14/01 11:30 SW/GW 12.0" F 12:00 1` 6" 6" Recharge 12:01 12.0" 2 12:31 30 6" 6' Recharge 12:32 12.0" 3 13:02 30 6" ROH - 14 i WAS GROUNDWATER ENCOUNTERED? IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: M1uEL C ANDERSON No. R -URI NO S L 0 P E N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/14/01 11:30 12.0" 1 12:00 30 6" 6" Recharge 12:01 12.0" 2 12:31 30 6" 6' Recharge 12:32 12.0" 3 13:02 30 6" PERC RATE: S MIN./INCH PERC. HOLE DIAMETER: 6" TEST RUN BETWEEN 7.0 FT. AND 8.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT/BUILDING SAFETY DIVISION ON-SITE WATER AND WASTEWATER PROGRAM 4700 SOUTH BRAGAW ANCHORAGE, AK 99519 SOILS LOG - PERCOLATION TEST PROJECT #: PERFORMED FOR: Stolle Investments. Inc. DATE PERFORMED: 3/14/2001 LEGAL DESCRIPTION: Lot 11 Grandview 2 3 4 5 6 7 8 9 17 TEST HOLE # 12-2 SLOPE OG/OL Well Graded Silty Sand with Gravel SW/GW 4 WAS GROUNDWATER ENCOUNTERED? IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: a• •�"• � z 49th :.....r .. ....... ........ ... i' ncxut c,wo[nsa No. C14331 BOH - 16'�� �NF� •.................. NO S L 0 P E SITE PLAN N See Site Plan See Site Plan READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 3/14/01 10:30 12.0" 1 11:00 30 5" 7" Recharge 11.01 12.0" 2 11:31 30 5" 7" Recharge 1 1 12:01 1 12.0" 3 12:31 30 FERC RATE: 4-1 MIN./INCH PERC. HOLE DIAMETER: 6" TEST RUN BETWEEN 4.0 FT. AND 5.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: TLK I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 5/9/2004 Municipality of Anchorage - . '; Development Services Department -4—W , - Building Safety Division ' " "� MEMORANDUM DATE: 09/06/01 TO: Jerry T. Weaver, Jr., Platting Officer, CPD FROM:ap s Cross, PE, Program Manager, On -Site Water & Wastewater SUBJECT: Updated Comments on Cases The On -Site Water & Wastewater Program has reviewed the following cases and has these comments: S-10764 Villages View Estates West. Prior to approval of this proposed subdivision, the following must be accomplished: 1. For each lot in this proposed subdivision, three wastewater disposal system sites shall be identified on the final plat per AMC 15.65.180.13.2. The areas to be used for wastewater disposal systems must be designated on the plat as being unavailable for use for driveways, parking areas or structures. It is possible that lot lines will have to be moved to accomplish this. 2. An aquifer test shall be conducted within the proposed subdivision. This aquifer test shall include one pumping well and a minimum of two observation wells. The test procedures shall follow those proposed by Tcffasat, Inc. in their report entitled "Ground Mater Evaluation for the proposed Villages View Estates ]rest" dated June 20, 2001. This aquifier test shall show that there is an adequate water supply to support the proposed subdivision and the effects of the appropriation of water to serve this subdivision on adjoining properties. 3. To develop this property, only wastewater disposal systems that have been approved as nitrogen reducing systems by the MOA shall be installed. A note to this effect shall be placed on the final plat. These systems will be required by code to undergo yearly maintenance and approval. The above requirements should also address the concerns expressed by Mr. Gerald B. Shearer in his letter dated August 28, 2001 regarding this proposed subdivision. t 'S -10811 Grand View Subdivision. Prior to approval of this proposed subdivision, the following must be accomplished: 1. Detailed topographical information shall be provided for proposed lots 6, 7, 8, and 9 showing that these lots meet the slope requirements of AhIC 15.65, Watewater Disposal Systems. 2. The soils logs of the test holes on this proposed subdivision shall be submitted on an MOA approved form. Seasonal high groundwater monitoring results shall be included. 3. Supporting documentation on water availability must be provided. This documentation shall include an hydrologist's report stating the expected quantities of groundwater available to this subdivision and the effects of the appropriation of water to serve this subdivision on adjoining properties. DEC -01-2002 2031 P.01 C1Vn, i ENVIRONMENTAL ENGINEERING • ENERGY CONSERVATION 6 ANALYSIS THEODORE F. MOORE, P.E. 14530 ECHO ST. PH: 607) 345.1355 November 26, 2002 ANCHORAGE, ALASKA 99316 James Cross, P.E. On -Site Water & Wastewater Program Manager MOA Dev. Services Dept., Building Safety Division P.O. Box 19-6650 Anchorage, AK 99519 By FAX 343-7997 Re: S-10811 Grandview Subdivision Proposed Plat Dear Mr. Cross: In the course of reviewing a different facet of the proposed subdivision I had an opportunity to take a look at the developer's submittal to your office dated lune 6, 2001 regarding soil suitability for construction of on-site wastewater disposal systems. As an engineer who conducts this type of assessment for other similar projects, I was distressed to sec several apparent errors and omissions in the engineering study that was submitted for your review. As I understand the intent of 15.65.180 "Subdivision standards for lots to be served by onsite disposal systems", such discrepancies should be corrected prior to issuance of preliminary plat approval. You did call attention to some of these discrepancies in your comments dated 9/6/01, but as far as I could tell no further action has been taken by the developer to resolve them. This is of particular concern because the proposed subdivision is . located in an alpine area characterized by steep slopes where the potential for environmental damage is high The following is a list of the discrepancies I found in the 6/6/01 septic system feasibility study. (1) The test hole location plan does not identify which test holes are which, or their locations relative to any identifiable points. This snakes an independent review difficult. (2) The contours shown on the test hole location plan do not have sufficient accuracy to identify suitable sites for on-site wastewater disposal systems. While the average slope of this tract is in excess of 25%, the slopes indicated on the logs for individual test holes range from 2% to 15%. The contour mapping provided does not portray these flatter areas. (3) The site plan doesn't show sites for an original and two replacement wastewater disposal systems on each lot, or the reserved area on each lot for on-site wastewater disposal. Thus it is impossible to determine if this platting requirement can be met. (4) None of the test hole logs indicate the presence of bedrock, yet all are quite shallow. Most of the reported depths are in the 12' —14' range. When the 6' required vertical separation from the bottom of the test hole is subtracted, this means that the bottom of the absorption systems can be no deeper than 6'— 8'. Thus, long trenches will be needed to achieve the necessary sidewall area, thereby increasing the size of the «serve area. Of the several monitor tubes I recently found, several extend no more than 6 feet below ground level, leading one to question the accuracy of the reported depths. P.02 (5) The engineer reported groundwater levels as being at or near ground surface in most of the monitor tubes when measured on 5/22/01, which would be unacceptable for on-site wastewater disposal. He stated that additional monitoring would be conducted later on to "more accurately" determine groundwater levels, yet there is no evidence of a follow-up report being submitted. (6) The test hole logs were not submitted on a municipal soils log form, as you requested, and they do not bear the stamp of a registered professional engineer. (7) The GF soils classification appearing on several of the test hole logs is a new one to me, and to the best of my knowledge is not part of the Unified Soil Classification System. (8) The pert test data on each of the soils logs indicates that the water depth at the start of each percolation interval was 12 inches instead of the 6 to 8 inches called for in the design manual. Thus the measured pert rates are not meaningful in terms of design parameters. The urgency for bringing these concerns to your attention is that the Platting Board public hearing on this proposed subdivision is scheduled to take place on Wednesday, December 4. Please give me a call at 345-1355 if you wish to discuss any of the above. Thank you. Sincerely, Ted Moore, P.E. TOTAL P.02 MUNICIPALITY OF ANCHORAGE PLATTING BOARD SUMMARY OF ACTION June 18, 2003 A. ROLL CALL Board Members Present: Caress, Deak, Linnell, McKay, Phelps, Shriver, Walsh Board Members Excused: Capps, Funatake, Staff Present: O'Brien, Soule, Eash, Radvansky, Crapps B. SUMMARY OF ACTION AND MINUTES 1. Summary of Action a. June 4, 2003 - Approved 2. Minutes C. CONSENT AGENDA 1. Time Extension 2. Findings of Fact 3. Commercial Tract Site Plan Review 4. Others E. OLD BUSINESS F. NEW BUSINESS 1. Public Hearings a. t8=10811-4 Grandview Subdivision, Lots 1-11 — Remand from the Assembly Approval of the remand request subject to the following: Platting Board Summary of Action June 18, 2003 Page 2 1. Add the following condition as a substitute for Conditions 9 and 11 on the 12/4/02 Summary of Action: a. "Lot 1 shall be tracted out and left unimproved for a period up to 18 months which may be extended based on the request of either party with subsequent 18 -month time extensions for the preliminary plat approval. The owner shall work in good faith effort with the Heritage Land Bank to negotiate a fair market value for either sale, lease or land trade of Lot 1. In the event that the sale, lease or equal value land trade cannot be negotiated, Conditions 9 and 11 (approved on 12/18/02) shall be reinstated. b. A 20 -foot wide pedestrian access easement to Chugach State Park shall be provided along the north or south boundary of Lot 1, or an alternative location as approved by the Municipal Trails Coordinator. This easement shall be automatically vacated in the event of a lease, sale or land trade of Lot 1 executed with the Municipality and the Heritage Land Bank and approved by the Assembly or at the unsuccessful conclusion of the negotiations when the original conditions are reinstated. 2. Construction of the reconfigured Honey Bear Lane cul-de-sac bulb in accordance with Condition 5 of the 12//4/02 Summary of Action that requires a subdivision agreement for construction of public improvements for Grandview Subdivision. Municipality of Anchorage ,• .� Development Services Department e Building Safety Division a•� MEMORANDUM TE: ivi DAdy 13, 2003 TO: Jerrry Weaver, Jr., Platting Officer, CPD FRO \I: OL Cross, PE, Program Manager, On -Site Water and Wastewater SUBJECT: Comments on Cases due May 16, 2003 The On -Site Water & Wastewater Program has reviewed the following cases and has these comments: Q'S=10811-1 '"'Grandview Subdivision. f qr Same comments as my previous memo concerning this proposed tsubdivison. , S-11026-1 Tuxedni Park West (Revised). Same comments as my previous memo concerning this proposed subdivision. a� , Municipality P.O. Box 196650 Anwra' w�50 Talecas� of Fax: (907) 343-7927 WJM".ai.andwage.ak.us ,Anchorage George P. Wuerch, Mayor DEPARTMENT OF PLANNING REQUEST FOR COMMENTS ON PRELIMINARY PLAT SUBDIVISIONS April 30, 2003 The Municipality of Anchorage has received application relating to the following preliminary plat a Th ea _in,,9g date is Wednesday, June 04, 2003 and comments must reach our office _ %2003 itf order to be Included in the staff conditions of approval. Preliminary Plats to be heard: 5,96;, -; ... �. f�-►�"`c' p �,� c-wS New subdly slowGrandview Subdivision (REVISED) orig. subdnsgal: Grandview Subdivision (Previously Routed) Request: Remand from the Municipal Clerk to the to Platting Board to Review new evidence and a revised plat requesting to subdivide one lot into eleven lots with variance from AMC 21.80.240(CuWe-sacs longer than 900 feet) and a variance from AMC 21.80.300 (Lot width not meeting 3:1 width requirements). , c .qt �► J 511026 -1 SG ltt v New subdlvision:Tuxedni Park West (REVISED) EEVV/II'I LE Drill. subdn..gai:Right of Way Acquisition Plat / Tuxedni Park West (R D) �{titc rRequest:To subdivide 5 tracts of land into 17 lots with the vacation of riSID) pef the Right -of -Way Aquisition Plat 86-239. Attached are copies of the proposed plats. Please submit your comments in writing, specifying any easements or other requirements that you department or agency may need. If no easements are required at this time, please provide a list of those plats to which there is "no comment" or "no objection". Sincerely, Jerry T. Weaver, Jr Platting Officer Enclosures 04/18/0 FRI 10:41 FAX 907 3434313 R0A CLERK Department of th'e 'Asse.mbip Municipal Clerk's Office 632 W. 6t�h Avenue, Rm. 250 Anchorage, AX 99501 - (FAX) 3434313 . FAX TRANSMISSION 'COVER SHEET Date: To: Sender, ZMW-1-10 40teRECEIVE PAGE(S), INCLUDING•HEET. IF YOU p0 NOT RECEIVE ALL THE.PAGES, PLEASE CALL i Visit us on the Internet @ www.muni.org/assembly2 0001 04/18/03 FRI 10:41 FAL 8U7 3434313 MUA CLIM VJUU'L t 614 f1 1003 APP -7 AN 9: 22 C� r' April 7, 2003 Municipal Clerk Municipality of Anchorage 632 W. 6th Avenue Anchorage, AK 99501 SUBJECT: Request for Remand to Platting Board to Review New Evidence Case No. S-10611-3 Please find attached a Request for Remand, including Exhibits. Jerry Weaver and other staff of Planning and Zoning are expecting to receive this. Could you please get it to them at the earliest opportunity so hopefully they can Include us In the April meeting of the Platting Board. • Thank you for your assistance. Sir rely, igiz M- SfoIre ecretary-Treasurer Stolle Investments Inc. 14020 Jarvi Drive Anchorage, AK 1 04/18/03 FRI 10:42 FAA 907 9474317 sUA CLEM GRANDVIEW SUBDIVISION REQUEST FOR REMAND TO PLATTING BOARD j. Q. �1. TO REVIEW NEW EVIDENCE C&E NO. S-10811-3 un An -1 AH 9 22 Aprll4,2003 V,,:1LE This request to have the Platting Board rehear Grandview Subdivi&bn is_ submitted under AMC Title 21.30.040 and is related to Condition No. 9 & 11 of the Platting Board:Summary of Action on December 18, 2002. Condition No. 9 reads: "Resolve trail dccess to the park with the Municipal Trails Coordinator". Condition No. 11 reads: "Redesign Honey Bear Lane extending the road to Chugach State Park Design and location of trail access to be resolved with the Trails Coordinator and Project Management and Engineering." The attached Exhibit A includes new information previously not submitted and therefore not considered by the Board relating to the existing topograpby directly east of the proposed subdivision within the State Park. A road extension to the Chugach State Park is not feasible or approvable by Project Management and Engineering. The existing topographic features along the proposed road alignment are extreme and not appropriate for vehicular access to the Park. Massive cuts and fills would be required to meet acceptable Municipal standards for public road access. The requirement of Condition No. 11 is not attainable in a safe and practicable manner, therefore creating a situation where theproject cannot proceed. In addition, construction of a parking lot within the State Park is also: not feasible due to extreme existing topographic features. This platting condition would result in a parking lot not being constructed resulting in vehicles parking along the road. This is not onlyan unsafe situation but is also illegal. AMC Title 21.85.050, paragraph 3, indicates that o$ street parking is mandatory for developments that require 24 ft wide roads. Exhibit B shows a feasible parking lot within Lot 1 situated on the portion of the parcel that is acceptable relating to topographic £eatuies. The exhibit also shows a revision to Lot 1 & 2 configuration to accommodate Park trailaccess. We request that the Platting Board remove the existing Conditions No. 9 & Condition No. 11 and replace them with the following: "Lot 1 shall be left unimproved for a period up to 18 months. The petitioner shall work with the Heritage Land Bank and the Municipality to negotiate a'fair market value for either a sale, lease or land trade of Lot I. The purpose and: goal of these negotiations is to provide a site for public parking that is safe as well as insures proper and legal access to Chugach State Park for use by the general public." This new condition will give the agenci6i adequate time to negotiate an appropriate site for public parking and proper access to the park as well as allow the petitioner to'proceed with platting and development of the parcel. -This revised condition address' both the general publics and the surrounding neighbors concerns :'as stated at the Platting Board hearing. .: WJUU7 U4/16/U3 rxl 1U:4Y rAi VU/ 3434313 XUA CLEM WJuo4 , --7 Iv Of ZE \19Zu2 . * c i%�� j 1 •) � t Ip +' , I I/ i it %i/ � Ir. ! , i �. �� �,. �.' � , �' `\t�t't�,;"w`!, ; �•,`-_ '`�. MunicipaHLY of Anchorage F.O. Er=195550. Anchwags: Alaska 99519-0850 Telephone: (907) 3434308 Fair. (90) 343-4220 http:Nwww.ci.and=age.ak.us George P. Wuereh, Mayor DEPARTMENT OF PLANNING REQUEST FOR COMMENTS ON PRELIMINARY PLAT SUBDIVISIONS October 24, 2002: SPECIAL ROUTING The Municipality of Anchorage has received application relating to the following preliminary plat must reach our office activity. Wednesday, The hearing date is December y Friday November 15, 002 in order to be included in the staff con2 and dit ons of approval. Preliminary Plats to be heard: 51081T Grandview Subdivision (Previously'Rbuted) This case has been routed and postponed a number of times. The most recent postponement was to allow the Municipal Geo -Technical Commission to review the proposed avalanche hazard zones that are outlined on the preliminary plat. New information has been submitted since the last time this plat was sent out for comments. In addition to the preliminary plat, the plat application and two (2) variance applications the following information is attached: Snow Avalanche Mapping and Hazard Analysis, Arthur I. Mears, P.E. dated September 2002. Supplemental Report for Grandview Subdivision, Terrasat, Inc. dated October 7, 2002. Letter from Lantech requesting a December 4, 2002 public hearing dated 10/ 16/02. Attached are copies of the proposed plats. Please submit your comments in writing,. specifying any easements or other requirements that you department or agency may need. If no easements are required at this time, please provide a list of those plats to which there is "no comment' or "no objection". Sincerely, Jerry T. Weaver, Jr Platting officer Enclosures MV—'CIPALITY OF ANCHORAGE a COMMUNITY PLANNING AND DEVELOPMENT i P.O. Box 196650 Anchorage, Alaska 99519.6650 PRELIMINARY PLAT APPLICATION OFFICE USE RECD BY:� �✓ A. Please fill in the information requested below. Print one letter or number per block. 1. Vacation Code 2. Tax Identification No. 3. Street.Address F1 Za I o6 !J oIJ 4. NEW abbreviated legal description (T1 2N R2W SEC 2 LOT 45 OR SHORT SUB BLK 3 LOTS 34). 0&// // _sod. � - n■nen ..■r�eeer�on��e .�e�e�ee©■■■■■■■■�■■■ 5. EXISTING abbreviated legal description ([12N R2W SEC 2 LOT 45 OR SHORT SUB BLK 3 LOTS 34) full legal on back page. eer�©■�r�er�c�■eo■nen-ee�■r�n■��nn�■n�a©■�■©■�■■■ 6. Petitioners Name (Last - Frit) ■■■■■■ii■■■■■■■■■■■■■ city A(%AAoEgje- stateAlaska i m• . 7. Petitioners Representable Address 440 W .10 ..3 1503 8. Petition Area Acreage 9. Proposed 10. Existing 11. Grid Number 12. Zone Number Lots Number Lots ',//4t. ® I S FMFM13. Fee $ y ' 14. Community Council P) a -c err VoA L Q- - B. I hereby certify that (I am) (I have been authorized to act for) the owner of the property described above and that I desire to subdivide it In conformance with Chapter 21 of the Anchorage Municipal Code of Ordinances. I understand that payment of the basic subdivision fee Is nonrefundable and is to coverthe costs associated with processing this application, that it does not assure approval of the subdivision. I also understand that additional fees may be assessed if the Municipalitys costs to process this application exceed the basic fee. I further understand thatassigned hearing dates are tentative and may have to be postponed by Planning Staff, Platting Board, Planning Commission, or the Assembly due to administrable reasons. Date: I � � Z Signature •Agents must provide written proof of authorization. C. Please check or fill In the following: 1. Comprehensive Plan — Land Use Classification x Residential Marginal land — AlpinstSlope Affected Commercial CommercialAndustrial Industrial Parks/Open Space Public Lands/Institudons Special Study Transportation Related 2 Comprehensive Plan —Land Use Intensity Dwelling Units per Acre Special Study Alpine/Slope Affected 3. Environmental Factors Qf any): a. Wetland 1. Developable 2.Conservation 3. Preservation b. Avalanche c. Floodplain d. Seismic Zone(HardinglLawson) .' D. Please indicate below If any of these events have occurred in the last No year: on the property. Rezoning Case Number Subdivision Case Number Conditional Use Case Number Zoning Variance Case Number Enforcement Action For Building /Land Use Permit For Army Corp of Engineers Permit E. Legal description for advertising. F. Checklist 40 Copies of Plat (Long Plat) 30 Copies of Plat (Short Pig Reduced Copy of Plat (8'Ax 11) Certificate to Plat - Aerial Photo Housing Stock Map Zoning Map Water. Sewer.' Private Wells Private Septic Fee Drainage Plan Topo Map 4 Copies Soils Report 4 Copies Pedestrian Walkways Landscaping Requirements Community Well Community Sys. Waiver Public Utility Public Utility I it I c tlW0000 k i'{i'i 1'il`1 1L-4-9 antsWOH N I I �ti �1 I E; V 1 r• Ili lfi iii �t,l -X--. v,�:t �,'�I11� �I+y\ (I 1 � t!r• Ili1'1111` 1 ,! til tiiqll i.t}11 = iii I / /? II IIIiI I is 1 ` ¢' 1 1 til 1 `\1l\\\ , •1 `I II� � If I , C ' i f•iilli L� I _j _11.11{` 1 11 � I �'I'I,'r�l�,. C 1 h itflillifl4 \\ t+�l �I 'I I 11''1 r' 1+11 1' I I� 'I ,III'Illill�'ill i�:{ I o 1 • @ I I iii '11,1' .1 11:1 I 2� t!r ��l i 11� 11111���1111 '' Ijl 11 l' LI''I'�I 111 i1��f �;l •� r� }1 }��� �il(1 � t \V�\11 'i•11��111111` �,11I V`5111{�-1v11 Ili�� •I II� i ��I�III �tb��� I �Is a• a.\tl1\I` ,+1 �\1{1t' ; �1511'l l,l I I��'� 1". fill ll11i131. t\\\ �' 'la(E ®i'ii; \\\1 ��\'r,\ \111\I \, �•:\lltw l`,\I 511 `II{III I�III��Uu1f lilt!lI1ll1tlll ftl1 t`\, rP 11d} Ilt'll1 1 1 rK Ird '' I \\� •� �\\\\I\q `I� .. 1, It �i' ,{ ,.M111 ff r kqJ k rtly� 1 :; wl� � I NN�\\\\•': \i`\` \\\ t r �i ' .e ! 1 1 lid' 1 \, III1 ll1 I 1141 "� R lit•; 9 \` �\\�\ \'' 1 Utlt;,,' Ar �, =1 11`'�`i ,1`1\ >s I,a•1\ I 1 ` (vot I �\A 1 tili ai ,.,. 1 � � � 1 :I,� i��ll��wv � R 'E�/1}`�•;A `, " , Vo i 1 liy�=s ; l•11 ; 1,1 , t .a '1; `1, i,� « �rt,6t' \ �r ,� 1' ��` P ]tt '- C 1V 1 1 11 I I rC'll}' irkv �+v il' I�A�vvv °M' or — } I fill t Be Drive ll.(I Ilt 44 `1 6 .M{ I�'{ 1 i. I � }f•....... liill� IF \�C'A L,t 101�I li, 'l�l%� lla t�lll .1 \�Sl 1 \:s - I 1LA r , VVF; A Ar 5 ��- �.-I AtFz it�1�11 VA \v��Ikt-:�1 :f r"rl I�l 11,E 1 k [ t ` 11• 'r�r .k, � \ v .. ., 1 �,., ., ypa0� --,- Git•t I l.i p 1� � \ s�.` ♦'�/ �-\\` \ I i \ l�r.s ,-1 — Ia�;ri� I•i Q� ..ne. t .'If.•v� -.�� 1 \ � l � i'�Il �•� 1 it = rr TERRASAT, INC. 1413 3 P Avenue, Anchorage, Alaska 99503 (907) 344-9370 Fax: (907) 344.1490 GeO1091Ca1 Consulting • Environmental Restoration • Rem October 7, 2002 Stolle Investments, Inc. 14020 ]arvi Drive Anchorage, AK 99515 RE: Supplemental Report for Grandview Subdivision Dear Mr. And Mrs. Stolle: TERRASAT, INC. provided an Avalanche Hazard Analysis report to you dated March 20, 2002. As discussed, that report was based on aerial photo and map analysis. Snow cover last winter prevented a site inspection. I conducted a physical site inspection in September of this year. Mr. Art Mears accompanied me and we both evaluated the avalanche hazards. During that visit, I found areas outside of the avalanche zones that exhibited evidence of soil creep or snow creep (Figure 1). Most of these areas were mapped in the March 20th report as "moderate (intermediate) hazards". Soil creep within the proposed Grandview Subdivision likely results seasonally when the soils are wet to'saturated. Frost heave is probably the dominant factor for creep in the upper areas. Most of the areas that are shown on Figure 1 are likely from snow creep and not from soil creep,Soil creep occurs slowly, with the soil likely moving less than one or two Inches per year. Soil creep effects vegetation, mostly alders, which are bent down slope. During my site visit, I saw quite a few rock outcrops. The areas mapped as soil creep are located below rock outcrops where thin veneers of soil overly the rock. Some of these areas are farther down the slope where soil horizons are likely several feet thick. Man-made structures can be designed to minimize impacts from surface creep. Other areas with soil creep, not mapped, lie above many of the outcrops and result from frost heaving. These areas are at a much higher elevation than where houses will be built and should not pose concerns for the Intended land development. Snow creep appears to dominate the areas mapped as soil and snow creep. This is evidenced by bent vegetation and sheared branches on both hemlocks and alders. Snow creep likely occurs seasonally after blankets of snow accumulate. Most of the areas where snow creep occurs have thick mats of shrubs or hemlocks on the down slope side which act as anchors to stop the creep. Uke soil creep in this area, the snow creep is likely to travel less than one or two Inches per year. We recommend minimizing vegetation disturbance In areas of land development around houses and above roads. A professional structural engineer should review house designs and designs for other structures that are planned for areas with snow or soil creep. We also recommend having a professional geotechnical engineer review designs for roads and driveways where soil creep is anticipated. Please contact us at 344-9370 if you have questions. Sincerely, )) 4-1 0ul-- Dan Young, pr ident Certified Professional eo ogist. October 16, 2002 Community Planning & Development Municipality of Anchorage City Hall 632 W. 6h Avenue, 2nd Floor Anchorage, Alaska, 99519 Attention: Mr. Jerry Weaver, Planning Staff & Members of the Platting Board Subject: Grandview Subdivision, Case S-10811 On behalf of the petitioner, Mike Stolle, we request that the plat be heard at the December 4, 2002 public hearing. If you need any additional information at this time, please advise. Sincerely, LANTECH RadtDr!yer LANTECH, INC. • SURVEYORS o PLANNERS • ENGINEERS 440 WEST BENSON BLVD., SUITE 103 • ANCHORAGE, AK 99503 • (9071562-5291 • FAX 561-6626 JUL-1J-[w1•.nun ua+ao no LW11 raLnm T_ -.i•nn inti w{v% "•• v{{. „r Municipality of Anchorage �• PLATTING BOARD AUTHORITY • APPLICATION FOR VARIANCE -Appllcant: Mikegtolle. .Address: 14o2o Jarvl Drive. Anchorage. Ak 99515. Si10 81 1 SEP § 2001 'Phone Number{,34tl9814 ; :Legal Description of property Involved; Grandytew Subdivision PresentAuture Use of Property: Vacant/Resldentlal Tax identification Number. •02012108 This is a request fora variance from Section 21.80,240 of the Land Subdivision Regulations. This variance Is for. Cul -de -Sacs longer than 900 feet a: The existing situation Is: Vacant lend. B. The granting of this petition would permit; One Cul -de -Sac to be approximately 1200 tong. Before a variance maybe granted, the eppllcant must prove that each of the following foureonaxans have been fNlrWed Answer Bach of the conditions in doted, using additional shoats If necessary. :Tho undersigned alleges Mat: 1. That there are such special circumstances or conditions affecting said. property that the sirki application of the provisions of this ordinance would clearly be Impractical, unreasonable, or undesirable to the general public. These special circumstances are:. 2. That the granting oflhe specified variance will not be detrimental to the public welfare or ! . Injurious to other property In the area In which said property is situated for the following reasons: The proposed design will create safer, flatter road grades. 3. Thai such variance Will not have the effect of nullifying the intent and purpose of this ,ordinance or the Comprebonstve Plan of the Municipality forthe following reasons: Ib -e_ Como plan expects and encourages sybdivisiojis to be designed with safety issues being _ _ __.__.._. /. _��J..t�... [•..L.A6.:..Iwn nN..e{e..e.w A {n {hn! nmu"AlAn 4, The above listed special conditions or circumstances do not result from the action of the applicant and such conditions or circumstances do not merely constitute a pecuniary (monetary) hardship, or Inconvenience In that: The existing topography Is dictat{na the 'Stw"m dA vnbd AprM AOft UO W a#0W0 aAd. Sol roe, ArrolareW. Ax �,.,� ,,,���j�r-ems e�_��'nl�e-��..t�s�,.,•K}•s,-S„`, a AOtlnaa: 1020 J&W D&*. Ane wWo. AK 056 t•K,Lrt : vanasontc trulir•Hx F"JAE NO. : 3450814 Jul. 16 2091 19:101±1 P01 MUn/c/pa/i/y ofAnchoung r - BOARD :.. APP1(CATION FOR VAR4*N c pplicant: Mi Stolte ddress: + rarvl pme Anch A 9 15 ;hone Number 9 5- nand iew $u6divisl4Il 510811 SEP 5 2001 agal Description of property in `ol ed� demon W. �resenllfuture Use of b&r'-0 0 of the Land Subdivision Regulations. TaxTdentiflcatlon Number 0 01 This is a request for a varfance from Section 4L This variance is for. - J d Ot't•1 Width Reauir men s A: The existing situation Is: YAQnL kML hthe 3:1 de to B, The granting of this petition would permit:narran width re+nui_�_rement. Wr Wa Ansswor oochyor tho condwo s in defog, .0 inp cant must prove that shoh of eets it necessary t�rcondAbns hov0 Ncfn 7he'undersigned alleges Ihat: 1. That there are such special circumstances or conditions affecting said property that the strict application of the provisions of this ordinance would clearly be impractical, unreasonable, or undesirable to the general public. These special circumstances are: . - . _. .. - ._._ _-.-__._._ __J _-_J 6-....& J:w1..1-N.m 2. That the granting of the specified variance wilf not be detrimental to the public welfare or Injurious to otherpropedy in the area in which said property Is situated for the following masons: The proposed iota are latae eig hat it ill not be detrimental. 3. That such variance will not have the effect of nullifying the intent and purpose of this ordinance or the Comprehensive Plan of the Municipality for the following reasons: Ik 4. ,The above listed special conditions or circumstances do not result from the action of the applicant and such conditions or circumstances do not merely constitute a pecuniary (monetary) hardship or inconvenience in that: The exlojing topography and street design Is, 01dating the design. CnP 4 k". S(piMuro of AutnodiW Agont AdUMSC 0140W WSW ftd. $U 0, Anarrapl, Ak $ Late of Land O#nor r Addw4: 14020 hwi Drtvs. AnehmW. Ak 057 _.. __0000....... .------• _..----.. SNOW AVALANCHE MAPPING AND HAZARD ANALYSIS GRANDVIEW SUBDIVISION. MUNICIPALITY OF ANCHORAGE Prepared For Stolle Investments, Inc. Anchorage, Alaska Prepared By Arthur I. Mears, P.E., Inc. Gunnison, Colorado September, 2002 SNOW AVALANCHE MAPPING AND HAZARD ANALYSIS GRANDVIEW SUBDIVISION, MUNICIPALITY OF ANCHORAGE Prepared For Stolle Investments, Inc. Anchora ,e, Alaska Prepared By Arthur I. Mears, P.E., Inc. Gunnison, Colorado September, 2002 Scp T 6 2002 1 GRAN EGGE4&. I; ARTHUR I. NEARS, P.E., INC. Natural Hazards Consultants 555 County Road 16 Gunnison. Colorado 81230 Tel/Fax: 970.641-3236 anmeme mii.com September 11, 2002 Mr. Ken Eggers 3201 C Street, Suite 400 Anchorage, AK 99503 RE: Avalanche analysis, Grandview Subdivision Dear Mr. Eggers: As requested by you and Dan Young of Terrasat, Inc. I have attached my evaluation of the avalanche hazard and associated mapping at Grandview Subdivision. My peer review of the previous study by Terrasat is included. call with the Anchorage Geotechnical Advisory Commission. Please contact me if you have further questions or wish to arrange a telephone conference /Sincerely, rr n Arthur I. Mears, P.E. (CO) Avalanche -control engineer cc: Dan Young Matt Warring 0 Avalanches • Avalanche Control Engineering r i 1 OBJECTIVES ,AND LIMITATIONS OF REPORT As discussed with Dan young and Ken Eggers, this report has the following objectives: a. Mapping ofdesign-rnagnitudel avalanche limits at the Grandview Subdivision; b. Delineation of red2 and blue3 hazard zones; c. Recommendation of mitigation concepts that could be used to protect any buildings in the blue zone; and d. Review of the March 20, 2002 Terrasat, Inc report on avalanche hazard. This report also has the following limitations which must be understood by all those relying on the results and recommendations: a. Larger and rarer avalanches (e.g, those with return periods of 300 or 1000 Years) are theoretically possible but these are not considered in Anchorage land -use planning; b. Design of structures to mitigate avalanches must be accomplished by an engineer registered in Alaska; such site-specific design is this studybeyond the scope of ; and c. The results of the calculations summarized here should not be considered Precise- They represent the best and most current methodology available which are thought to be appropriate for local conditions. 2 AVALANCHE TERRAIN 2.1 Grandview Subdivision location The proposed subdivision is located in a tnbutary to the Little Rabbit Creek drainage, within the eastern half of Section 6, T. 11 N., R. 2 W. A portion of the 1"= 200' scale topographic map with 4' and 20' contour intervals is included as Figure 1. Some platted subdivision streets have been superimposed on this map but the topography does not reflect existing cuts and fills or recent building construction Design -magnitude avalanche— In the Municipality of Anchorage, st be this avalanche, which mu considered in land -use planning and engineering, has a return period of roughly 100 years (a constant annual probability of 1%). Due to existing limitation of avalanche data, the actual return Period between 30 and 300 years, 100 -Year return 2 Red Zone — Area affected Period has an by avalanches return period with s of rou ► 1 p dictions within the United States, Canada Bh Y Y producing impact pressures of 8001bs/@= or more. Other jurisears, or avalanches and Europe have more restrittive red and blue zone definitions. 3 Blue Zone—Area affected by avalanches with return periods of roughly 10 to 100 produce impact pressures of less than 800 Ibs/fl , Other jurisdictions within the UniYears ted StatescCanada and Europe have more restrictive red and blue zone definitions. fractures of these dry slabs which will quickly develop into dry -flowing avalanches with maximum speeds of 50-60 mph (75 - 90 ft/sec) in path "A," and lesser speeds in paths "B" and "C." Avalanches of this type will be accompanied by a low-density powder blast which will exceed the maximum runout distance of debris however this blast will contain little destructive energy because of its low density and low velocities. The maximum extent of avalanches shown on Figure I includes powder blast although very low density dust clouds may extend to the valley bottom 2.3 Computation of avalanche dynamics and determination of hazard zones Observations and measurements of design -magnitude avalanche speeds, runout distances, impact -pressures and other characteristics required for land use planning and engineering have rarely been made throughout the world's mountain regions. They have never been observed above the Grandview subdivision because the observation period here is very short (about 30 years) and observations have not been made continuously. Because direct observational data are not available, indirect methods have been used to compute and map the avalanches. A two-step procedure was used as follows: a. The avalanche runout distances (maximum stopping positions) was estimated through use of database statistics of actual design -magnitude avalanche events in coastal Alaska. This result was refined through the air photo, field, and topographic map analysis on this site. b. After determination of the avalanche stopping positions (step "a"), a 3 - component, stochastic, avalanche -dynamics model was used to compute speeds, impact -pressure potentials, and debris distributions. This model assumed a starting position within the obvious starting zones (described in 2.2) and a stopping position as determined in "a." By definition, the impact pressure drops below approximately 800 lbs/ft2 at the red zone - blue zone boundarys. It should be noted that the impact damage on the Hemlock trees in path "A" is also located fairly close to the red/blue boundary as determined by the impact pressure criteria described in this section. Examples of the results of the computational techniques are provided in the technical appendix. Path "A" is used as an example. s The simple relationship P m pV2 between speed, V, Flow density p, and impact pressure P was used to define the red zone - blue zone boundary. A flow density, p — 150 kg/ms was assumed for the dry -slab avalanche. The speed along the path profile at this red/blue boundary is 16.3 msec (36.6 mph; 53.5 ft/sec). 3 USE OF THE AVALANCHE MAP The maximum extent of the red and blue hazard zones are shown on Figure 1. This Municipality of Anchorage map (copyright 1979 but based on photography taken in 1972) predates the Grandview Subdivision. Therefore subdivision boundaries and lot lines are not shown. These current lot lines should be placed on Figure 1 to determine if any lots or proposed building sites are affected by avalanches. 4 MITIGATION CONCEPTS If possible, all residential structures should be placed outside the avalanche red and blue zones. This is the safest and most reliable form of mitigation because it avoids all of the uncertainties inherent in avalanche -dynamics modeling and additional uncertainties associated with structural engineering for avalanche impact loads. Therefore the recommended mitigation is avoidance. If complete avoidance is not possible or is undesirable, construction in the red zone should be avoided because (a) avalanche destructive potential is large, and/or (b) the return period of avalanches is short and there may be a significant hazard to persons moving about the area. Construction in the blue zone will be feasible, however such construction should take place as far from the red/blue zone boundary as possible. In general, impact forces will decrease in an approximately linear fashion with distance from the red/blue boundary to zero at the end of the blue zone. Wood -frame construction with special reinforcement will be feasible within the lower 20- 30% of the blue zone. However, it must be noted that horizontal loading on structures maybe several times the normal horizontal wind loading standards required by the Uniform Building Code (UBC) even within the lower blue zone. The magnitudes and directions of forces cannot be determined from the avalanche map and cannot be specified on the basis of hazard zone definitions. They must be determined on a site-specific basis and will depend on • Building location; • Building orientation; • Terrain features near the building; Structural details and shape; and Other interacting factors. Windows and doors may require special design or be eliminated from some exposures. The patierns of use near and around buildings must be carefully considered so that exposure is avoided or eliminated and the risk to persons is minimized. Because dry -flowing avalanches with associated powder blast that may be l Om (33fl) or more deep in both the red and blue zones, building earthen avalanche catching bers above the buildings will not be practical. Other forms of structarriural protection also have major drawbacks. For example, guiding or deflecting berms will have the same problems as the catching barriers discussed above. Furthermore, they may deflect avalanches onto adjacent private or public property. Anchoring snow to the ground in the starting zone Will be extremely expensive (an estimated $500 - $1,000 per running foot of structure; several 100's of feet of structure would be required), and may require construction outside the property. Construction of snow -drift fences upwind of the starting zones may be feasible and would catch some snow before it is deposited in the starting zones. However such fences would have to be built on steep slopes, would be subject to snow creep and wind forces, and would probably require regular maintenance. Drift fences would not be effective in mitigating avalanches with unusual wind directions. Because of all the construction, maintenance and performance diffic the various forms of structural protection, only reinfoulties associated with rcement of buildings for site - specifically -determined avalanche loads appears to be a viable option. 5 REVIEW OF THE TERRASAT REPORT In a March 20, 2002 report to Stolle Investments, Inc. the geological consulting fnnm TOM Imt, Inc. evaluated and mapped the snow avalanche hazard at the Grandview Subdivision. This report used the following methodology to arrive at the mapping and conclusions: A review of a ] 982 report definitions; by A. L Mears, P.E , Inc. to determine hazard -zone Use of the "energy -line" method (a graphical procedure) to estimate hazard - zone limits and to eliminate any red zones; Evaluation of aerial photographs, in stereo, dated 1950, 1957, 1977, 1985, 1990, 1996, 1997, and 2000 was used to estimate avalanche extent and frequency. Procedures not used in the Terrnsat evaluation included: Estimates of avalanche frequency or return period, an important element hazard zone delineation, was not determined through field observations or history, frequency was estimated through air photo studies only; Avalanche -dynamics equations and analysis to predict speeds, energy densities and hazard zones were not used; Site -inspection of terrain and forest damage was not conducted although a site inspection is essential to determine details not apparent on the photos, to confirm starting zone locations and to estimate avalanche frequency. TECHMCAL APPENDIX This appendix consists of the following: a. A detailed centerline profile of Path "A" showing lengths and steepness of several section of the profile used in dynamics analysis. b. A pictorial representation of the avalanche -dynamics analysis. Sheetl Avalanche Profile and x/y coordinates Grandview A Raw -Data feet X -feet 0 Y -feet X -meters Y -meters L -meters Ang-Rads Ang-legs Sum L 2800 0 854 66 222 2760 2680 20 68 841 24 0.5 31.2 0.0 396 2580 •121 817 787 53 0.5 27.1 23.5 666 2440 203 744 61 93 0.5 29.9 53.5 846 2360 258 720 60 0.5 27.4 61.2 962 2300 293 701 40 0.4 24.0 92.7 1058 2260 689 32 0.5 27.3 1186 2220 362 677 41 0. 22.6 39.1 39.8 1356 2160 413 659 55 0.3 3 17.4 31.7 1 504 2120 459 646 47 0.3 19.4 40.9 1594 2100 486 640 28 0.3 15.1 55.0 1754. 2080 535 634 44 0.2 12.5 46.7 1894 2040 577 622 44 0.1 7.1 28.1 0.3 15.9 49.2 850 tO0 I:. I m m 7D0 M41 .1A Grandview "A" Avalanche Path Alpha Deg Qu luu IbU 20Qtar&%talQldtanjW(mf00 450 500 550 600 Page 1 31.2 28.4 29.1 28.4 27.5 27.5 27.0 26.1 25.3 24.3 23.7 22.3 21.9 119 particles start from top segment. c:\plk\granduiew a.txt Path drops: 232 m Friction mu = 0.30 log MMD = 2.50 Random R = 0.300 Alpha = 21.9 degrees 718 particles deposited. • Front stops at X = 578 m - -Front speed (max = 25.1 misl -------Mean speed (max = 18.5 mis) Deposition (not to scale) F.xit and "iP.w rl iCtr i blit. inn.,, in your file c:\plk\results.txt T' J Municipality of Anchorage �•e•, Development Services Department Building Safety Division "— s•a ar• MEMORANDUM DATE: April 11, 2002 TO: Jerry T. Weaver, Jr., Platting Officer, CPD FROi\I:qV - Cross, PE, Program Manager, On -Site Water & Wastewater SUBJECT: Comments on Cases due April 12, 2002 The On -Site Water & Wastewater Program has reviewed the following cases and has these comments: 5,'S—.10811 Grandview Subdivision. !:No additional comments. , S-10899 Fire Lake Subdivision (with variances). The existing wells and wastewater disposal systems serving the two properties are not permitted and have not been approved by the MOA. Prior to the approval of this request, the applicant must obtain MOA approval for the systems serving Tract "G" and the Alaska Department of Environmental Conservation approval for the systems serving the duplex on Tract "F" Lot 4. S-10903 Iliamna Acres The existing well and wastewater disposal system serving the existing trailer on proposed Tract 9B are not permitted and have not been approved by the MOA. Prior to the approval of this request, the applicant must take necessary action to bring these unapproved systems into compliance with on-site water and wastewater disposal systems regulations. Reserve requirements for wastewater disposal systems also apply. S-10905 Olympic Heights. No objections. 1-00011 TERRASAT, INC. 1413 West 315'Avenue, Anchorage, AK 99503 (907) 344-9370 Geological Consutting Environmental Restoration Reauiatary Cl mnnwnro Avalanche Hazard Analysis for the proposed Grandview Subdivision Prepared for: Stolle Investments, Inc. 14020Jarvi Drive Anchorage, AK 99515 By: TERRASAT, INC. 1413 West 31"Avenue Anchorage, AK 99503 March 20, 2002 INTRODUCTION Stolle Investments, Inc. contracted TERRASAT, INC to evaluate the potential for the occurrence of avalanches in the Proposed Grandview Subdivision, Anchorage, Alaska. Our scope of services includes: • Evaluating vegetation patterns from aerial photography. • Interpreting site topography and slope analysis. • Using terrain unit mapping techniques to determine the occurrence of avalanches. • Classify snow avalanche hazard zones using the methods of Mears, 1982. Site Description The Proposed Grandview Subdivision is located east of Bear Valley in Anchorage, Alaska (Figure 1). The sectional description for the area is the N 1/2 of the SE %4 of Section 6, Township 11 North, Range 2 West, Seward Meridian. DESIGN AVALANCHE AND IIAZARD-ZONE DEFINITIONS Art Mears, 19821, describes the following three classifications: 1. Red Zone. These avalanches have a statistical return period of approximately 3 to 30 years. They may also be defined by avalanches with kinetic -energy densities of 800 pounds per square foot or more. The Red Zone is considered a high hazard zone. 2. Blue Zone. This zone has a return frequency of between 30 and 300 years with kinetic energies less than 800 pounds per square foot. The Blue Zone is considered a moderate hazard area. Structures built within the Blue Zone should be designed for protection from these avalanches. Avalanches reaching the end of Blue Zone boundaries are very unusual and infrequent. Determination of Blue Zone boundaries within the Grandview area are based on indirect techniques including terrain analysis, vegetation patterns and slope maps. These boundaries should be considered approximate. 3. Hazard Free Areas. These areas may have minimal exposure to moderate avalanches but are generally free of avalanches. IIAZARD ASSESSMENT We examined the following photos using a stereoscope: August 7, 1950 black and white August 12, 1957 black and white September 24, 1977 black and white June 27, 1985 black and white June 3, 1990 color September 5, 1996 color September 3, 1997 color September 17, 2000 color r Mears, Arthur 1., P.E., 1982, Anchorage Snow Avalanche Zoning Analysis, Prepared for the Municipality of Anchorage, 84 pages. Avalanche Hazard Analysis for Grandview Subdivision Page 2 Most of the upper hillside within the proposed Grandview Subdivision is composed of consolidated rock. The upper slopes appear to be covered with a thin veneer of soil (1 to 2 feet thick) that is likely undergoing creep from freeze -thaw cycles. The lower slope within the proposed development is interpreted to consist of glacial till and some colluvium consisting of re -worked glacial till. Spruce trees are sparsely scattered across the hillside of the proposed Grandview Subdivision. This area is at the limit of tree line. Field observations show that most trees have few branches on the east sides of the trees, likely from strong winds from the east. Several areas within the proposed subdivision area are devoid of spruce trees. We interpret this to mean one of the following: 1. Some snow avalanching has occurred. 2. Snow accumulation is consistently high, thus restricting spruce growth and favoring shrubs and grasses. 3. Afire occurred in the past destroying some of the forest. Photos from 1950, 1957 and 1977 show two avalanche chutes that contribute to snow avalanching in the eastern part of the subdivision. Avalanche deposits are confined to several small channels below the larger chutes shown in Figure 2. These photos show that the remainder of the slopes within and above the subdivision have remained relatively stable for at least 27 years (1950 to 1977). Since most of the spruce trees are of similar height, we speculate that the slopes were stable for at least 20 to 50 years before 1950. Using terrain analysis and these early photographs, we looked for evidence of avalanche deposits at the base of the slopes. Terrain analysis shows a well rounded lateral moraine near the lower (northern) part of the subdivision. We found minimal amounts of avalanche talus and no talus on the lateral moraine. We found that depositional talus is confined to the narrow channels within the southern part of the subdivision. We interpret this lack of avalanche deposition, lack of avalanche scaring and low angle slopes to mean that few large avalanches occurred in this area since the last glaciation, which was likely more than 12,000 years ago. Photos from 1985 and 1990 show evidence of snow avalanche activity after 1977. Figure 2 shows evidence of two minor avalanche events on the western part of the figure, mapped as "moderate (intermediate) snow avalanche hazard". These areas correspond to the "blue zones" of Mears, 1982, pg. 8. A third area of recent activity is within the " moderate (intermediate) snow avalanche hazard" zone on the eastern portion of the property. This event terminated uphill from the lateral moraine with the exception of two channels that extend north beyond the subdivision boundary. Other areas with minor to moderate snow movement between 1977 and 1985 are mapped as "moderate (low) hazard areas" which equate to the "blue zones" of Mears, 1982, pg. 8. These areas have very little area for run out. Photo interpretation shows little to no talus accumulation associated with these events. The small amount of soil debris is close to the starting zone. While the central area of Figure 2 is relatively large, snow movement within Avalanche Hazard Analysis for Grandview Subdivision Page 3 this area was likely a sequence of discontinuous events. Spruce trees in this area help anchor and stabilize the snow. Photos from 1996, 1997 and 2000 show no evidence of new avalanches. These photos show that vegetation is growing back in the areas that had activity between 1977 and 1985. We examined topography within and surrounding the proposed subdivision. We found the maximum elevation drop for an avalanche in this subdivision is 750 feet (Figure 3). Appendix A shows slope profiles for the two avalanche chutes on the eastern portion of the subdivision. Both of these profiles predict a small starting zone with a long, low angle run out, suggesting avalanches would rarely reach the terminus of these zones. Starting zones in the Grandview area range from 23 to 30 degrees, which are gentle compared to the range of examples (3140°) provided by Mears, 1982, pages 42 to 45. The low starting angle, combined with the low mean slope, suggest few avalanches will occur in this area. This is consistent with our photo interpretation that suggests rare events have occurred since the Pleistocene (last 12,000 years). Mears, 1982, pgs 4647, describes a method to approximate design velocities. Mears states: "A height H=80 meters is chosen as the boundary between the red and blue zones, because our experience in calculating avalanche forces and observations of destruction suggest extremely large avalanche forces can be expected where H > 80 meters". Our calculations show that the maximum H value in the Grandview area is 16 meters, which is much less than the 80 meters Mears uses to differentiate the Red and Blue zones. For both avalanche paths, the maximum avalanche velocities would occur on the upper slopes of the subdivision, more than 1000 feet away from the area where houses will be built. Avalanche velocities and their associated kinetic energies will likely be relatively low on the lower slopes of the Grandview subdivision, even in the areas we mapped as "moderate (intermediate) hazard". We evaluated slopes across the subdivision. Figure 4 shows that generally the lower half of the Grandview subdivision has slopes less than 20 degrees. The upper slopes are gentle enough to offer little hazard of avalanching on the western half of the subdivision. We mapped moderate (intermediate) and moderate (low) hazard areas for the Grandview subdivision. The moderate (intermediate) areas are likely "blue zones" of Mears (1982) but are mapped as moderate (intermediate) because of their soil debris deposition. History from photo interpretation suggests one significant avalanche event occurred within the last 70 to 90 years. The event was likely multiple events: one channelized and others that were small events within the area we mapped as the blue zone. The blue zones are areas where snow has moved and the potential for future movement exists. These zones consist of spruce trees, which help anchor the snow and minimize avalanche hazards. Avalanche Hazard Analysis for Grandview Subdivision Page 4 CONCLUSIONS Terrain: Avalanche starting zones within the proposed Grandview subdivision are relatively narrow, small and shallow. The upper tracks are rocky, reducing the frequency and magnitude of avalanche events. The run out area is gentle, extending nearly 2000 feet from the starting zones. A lateral glacial moraine in the run out area acts to deflect snow and greatly reduces velocities. These conditions, combined, reduce both the frequency of events and the magnitude of avalanche events. Areas farther west, beyond the chutes have trees and shallow slopes that help anchor snow. Snow in the western areas likely never reach velocities of avalanches and may flow as debris flows. Photo history: Few avalanche events occurred since the last glaciation. Heavy vegetative ground cover including spruce and alders anchor snow, reducing the frequency of avalanches and reducing velocities. A reoccurrence period for minor events within the Grandview area seems to be 70 years or more. A large magnitude avalanche event is unlikely based on photos that show small, scattered events in the past. Run outs and full paths are relatively short over the western part of the subdivision, suggesting low velocities and small magnitude events occur in these areas. Snow pack: Snow pack in the starting zone appears to be shallow. Cornice failures cannot be considered triggering mechanisms because cornices are absent above the starting zones. Aspect: The Grandview subdivision generally faces north. This means that avalanches induced by solar warming are not a major factor in this area, thus reducing the frequency of avalanche events. Moderate (intermediate) hazard zones: We mapped areas as moderate (intermediate) hazards where avalanche debris is recognized on aerial photography as well as the upper two chutes on the eastern part of the subdivision. Destructive potential within these areas are unlikely to ever reach the destructive forces (H=80 meters or kinetic -energy densities of 800 lbs/ft) that Mears (1982, pg. 47 and 75) uses to define high hazard zones. Frequency of reoccurrence for avalanches within the Grandview subdivision is likely 70 to 100 years or more per event. Thus, using any of Mears (1982) criteria, each avalanche event identified within the Grandview area is well within the moderate hazard zone. RECOMMENDATIONS We believe that houses can be safely constructed within the proposed subdivision that will withstand avalanches that are likely to occur. However, we recommend avoiding the areas that we mapped as "moderate (intermediate) hazard". These areas will have increased risk with respect to the other areas and design and construction cost are likely to be higher than houses built within the moderate zones and hazard free zones. Since lots are fairly large, locating a house outside of the "moderate (intermediate) hazard" map unit should be relatively feasible on each lot. We recommend locating houses on the lower slopes within the proposed subdivision, as shown on the map produced by Triad Engineering, dated March 19, 2002 and submitted with this report. A Professional Engineer or Professional Architect Avalanche Hazard Analysis for Grandview Subdivision Page 5 should review house designs and determine if the structures will likely meet design conditions for possible avalanche conditions within this subdivision. We found that the existing trees and shrubs are anchoring snow and limiting snow failures. We recommend minimizing vegetation disturbance in the areas up slope from the planed houses. Please contact us at 344-9370 if you have any questions. Professional Signatures ,.� 0.. O v Dan Young Certified Professional Geologist Avalancbe Hazard Analysis for Grandview Subdivision Page 6 O _.. p N r O N pr l: fil ,• TOS 'i r J 1� ui C LL .. �' LU ci I � � L •cn O +•�P // N r 'sy Yit x � .xn • �.. � i 1 v AFI1' few jM i� ✓ a ^.r , x. � �C' � r (x • J �. r r r v + . w f June 6, 2001 610 $1 1 13EP 520 Subject: Grandview Subdivision Geotechnical Investigation and Septic System Feasibility Study Dear Mr. and Mrs. Stolle: At your request we completed a geotechnical investigation and septic system feasibility study on Grandview Subdivision. The plat for the subdivision was furnished by LanTech Land and Construction Surveyors and indicated a total of 12 lots was included in the proposed subdivision. Our directive was to locate suitable areas on each lot for the construction of on site septic systems capable of meeting the requirements of the Municipal Ordinance for the treatment of domestic effluent from homes to be constructed in the subdivision. Thomas Enterprises of Anchorage between March 9 and March 14, 2001 completed the excavation work. 'Test holes were dug to depths approaching 20' utilizing a track mounted backhoe and a monitor tube was placed In each hole. Percolation benches were then constructed at various depths in the holes, but primarily between 4' and 7' below the original ground surface. A percolation cavity was prepared to determine the absorptive characteristics of the soils encountered In the test holes. The cavity was presoaked in accordance with Municipal requirements and a percolation test performed. The results of the tests are Included in the attached documentation. The underlying material encountered in the test holes varied throughout the site, but was primarily composed of well to poorly graded sands and gravels with silt contents ranging from 5% to over 25%. The percolation rate of materials encountered also varied from less than 1 minute per inch to 30 minutes per Inch in areas with higher sift contents. The majority of the tests, however, were between 1 and 5 minutes per inch. Groundwater was encountered in only 3 of the test holes. Water monitoring completed over the ensuing 30 -day period further indicated no groundwater except in the 3 holes. We again monitored the groundwater levels on May 22, which is usually near the high water level of the year. The results from that survey are included with this report. Unfortunately, several of the holes were still covered with snow and could not be checked. We will check the groundwater levels in those holes once the snow has left the area. Grandview SubdiviW Septic System Feawlity June 6, 2001 Page 2 of 2 further indicated no groundwater except in the 3 holes. We again monitored the groundwater levels on May 22, which is usually near the high water level of the year. The results from that survey are included with this report. Unfortunately, several of the holes were still covered with snow and could not be checked. We will check the groundwater levels in those holes once the snow has left the area. The ground slopes throughout the subdivision are steep, but test holes were placed in areas where a separation of at least 50' from any break in grade of 25% or greater could be attained. Some grading may be required In some Instances to meet the Municipal requirement of a 50' separation between a septic system and a 25% break in grade. An accurate topographic survey may be required to verify the surface slope at the location of the proposed septic systems. Test holes were located in areas, which were assumed to be the primary location for the new septic systems. These locations are shown on the attached map, which define the area of the subsurface study. Please review the attached data and advise if you have any questions. A final report showing the reserve areas and location of the proposed wells to serve each lot will be completed in the near future to satisfy the requirements of the Municipality of Anchorage Development Services Department Sincerely, Michael E. Anderson, P.E. Attachments GRANDVIEW SUBDIVISION GROUNDWATER MONITORING Groundwater was measured in each of the test holes on May 22, 2001. At this time approximately half of the area was still covered with snow and surface runoff was evident at nearly every test hole location on the property. The water noted in each of the holes was therefore assumed to be artificially high and not representative of true groundwater. Additional monitoring will be completed in mid June once surface runoff Is completed in the area to more accurately determine groundwater levels. Test Hole No. Depth of Water Comments 1-1 0 1-2 0 2-1 8 High Surface Water Runoff Area 2-2 Unknown Ice in Monitor Tube 3.2' Below the Surface 3-1 0 3-2 6 High Surface Water Runoff Area 41 Unknown Monitor Tube Covered with Snow 42 Unknown Monitor Tube Covered with Snow 5-1 0 5-2 8 High Surface Water Runoff Area 6-1 0 6-2 0 7-1 0 7-2 Unknown Monitor Tube Covered with Snow 8-1 5 8-2 Unknown Monitor Tube Covered with Snow 9-1 0 9-2 0 10-1 Unknown Monitor Tube Covered with Snow 10-2 Unknown Monitor Tube Covered with Snow 11-1 0 11-2 Unknown Monitor Tube Covered with Snow 12-1 0 12-2 3 25 8 High Surface Water Runoff Area 26 1 7 High Surface Water Runoff Area LL I 30 _ I 18' 1 4" 1 1 :4Z 1 30 _1 18- 1 4" 1 7s 1,rw� —1 15X ND YdTBR "COUNTSRMF NO rCn YES M DEPTH? lyd'PTN R7 TArrR APTZR A(O inti Z- .LWTZ. acre _._ f rents ffw wcw c SEB ATT4c"!D PLlT N cDuutxrs NO I.VPERdlE"LES ENCOUNTEREE moms wAnm AM WDW Pot at 4 ANCHAa E ANDERSON, certify that this fest ww performed in accordance with oil ADEC guidelines In effect on this date. DATE' Lot > A lske Stolle Property AOMIMEL F ANDERSON !POf06 TEST HOLE I f—f 0442r-" 017W TO eorrou or MC MLC 12 ) owrerew or POM "OLE. _6 (wadEs) rew oft" sr.• T.L. K/MBROUGH are or mT. 3-09—Of me racOF �++ AMal rnwr mm mows • Y.W= "Im MOP AM^. 10.•10 >Z" SrARr OW etre : 40 30 Y S. 6 LL I 30 _ I 18' 1 4" 1 1 :4Z 1 30 _1 18- 1 4" 1 7s 1,rw� —1 15X ND YdTBR "COUNTSRMF NO rCn YES M DEPTH? lyd'PTN R7 TArrR APTZR A(O inti Z- .LWTZ. acre _._ f rents ffw wcw c SEB ATT4c"!D PLlT N cDuutxrs NO I.VPERdlE"LES ENCOUNTEREE moms wAnm AM WDW Pot at 4 ANCHAa E ANDERSON, certify that this fest ww performed in accordance with oil ADEC guidelines In effect on this date. DATE' Lot > A lske Stolle Property AOMIMEL F ANDERSON !POf06 a 2 a 4 s 6 7 a - s - ro - n - 12 - r] 14 is u n Is is 20 21 22 23 TEST HOLE I f-2 WW ro sonar Or PM I.OM : 12 pa*s) aw&-mx Or PM MME: 6 lapis% T.L.K1MB—R0Ufz.H w7r or mr. 3-09-01 Pce�oia+Eo iE E °� y(�, 10131 I1E7 ° PERG COMMEM w+/w• wan— w+m+ aaoP 11.•00 12• START f.4 "srr'�ss 91 15 f1.5_ 1.4 ."".d a e— ss : .5" w AWO >S7t; GROUND rd?MR 8NC*f1A7MRMfF NO FrA YES t DEPTH? ArPTR 717 r/TCR AFTER YONIM' tura:• 11.5" I 1.4 Wr - 1.4 U"Am PER wpr Ser A4 TwHTW PUT cottwEHrs: NO I.VP1f'RMEABLES LWCOUNTERED sols ranMc AOEC AIEIir00 PFR at 1, �/ICFtAEL E ANDERSON. certify that this test was performed in accordance with oit ADEC gu;doikms in effect on this date. DAZE Lot 1 J ke Stolle PraperiY AUCHAEL E ANDERSON vOf06 0 1 z i 4 s e 7 s s 10 11 12 13 14 is to 17 1s 1e 20 11 22 23 ItH CAM" PwFdwd I017aw or nCfAWJ h TEST HOLT ,{ 2—f DO" To 6011au OF PM Hae: 12 (1NDNts) DKWWR OF PM HOLE _6 (macs) pawoftED or _T.L. K/MBROUGH w1E OF rzsr.• 3-09—Of CAM= YAM "CO&WTXAZDP NO YES n DEPTH? Dd'PTff f arm" A/TdR ifavirm. ZWTZ.. SBE'ATTACHED PL/,r N COIMEWS: NO MPERd F"LES ENCOUNTERED so s MOM ADEC A&v7NW PER BR 1. MICHAEL E ANDERSON. certify that this test was pe -formed in accordance with oB ADEC guidelines in effect on this dote. DATE Lot 2 .Pike Stolle Properly A MMEL E. ANDERSON YOf06 0 i 2 J 4 s 6 7 s 9 to 11 12 1J II is 16 17 is is 20 21 22 2J • JMW AAM A6 JMW AWJ 11,0"3 A / • / r b . L .. . TEST HOLD' z—z oEPnr 7a BMW OF MC. frac 12 (#xwu) Murat? or I'M )CM. 6 (M CHM) PoilonMw er: _T.L. KIMBROUGH w7e or mT..• 3-09-01 GROUND YAM "COUMTBRZDP NO PqYES DEPTH? ArPTA 7t7 Fd r" AFTa'R J/OAFIM- DST6. I SffA' A7TA!JId'V 'PLlT N COMMENTS. NO MPE""BLES ENCOUNTERED SOU MIINC ADEC LE71400 PER ea. 1. MICHAEL E ANDERSON, cwUfy that this test was performed in oceordance with all ADEC guide&nes in effect on this dote. LD11E . lot z .dobe Stolle Property .i MHAEL E. AMDERSON vofoe 0 1 2 s 4 s a 7 a D 10 11 12 1.7 14 1s 16 17 is to 20 21 22 23 �L'1`tCG'UL�4 11 t'.J1V 11" J 1 L� 1 � J%MV Arra honer Y a7r flair TEST HOLE jf 3 - DOWN ro sorrov or PESG HOE 12 (a aim) DKVE ER or PORC Not.E 6_ (MACHM) povo o er.• T.L. KIA48ROUGH a1E or wsr.• 3-09-01 GROUND YAP" dNCOUNTSRSD? NO YES in DEPTH? ArPT11 717 7ATBR AMM YONITOA- DATr.. A7TACHd'I! PI.ST q N M COMMENTS: NO I.VP)r"E"LES ENCOUNTERED OLS RArap ADEC METHOD Pt7t BR 1, MICHAEL E ANDERSON, certify that this test was performed In accordance with ail ADEC guidelines in effect on this date. DATE.• S Lot 3 A fake Stolle Property AfICXAEL E. ANDERSON 1v0f06 o- 1 s� a� 4 s 6 7 a D t0 it 12 13 14 is If n 1B is 20 si u 23 JNW uM ivriuv,� TEST HOLE I s-2 DtPM To Bonar Or rant MULE 12 (staffs) a4L1ER Or IMM nano 6 (w -ma) rarmiED er: T.L. KIMBROUGH WE Of MMM 3-10-01 CROMD JrATZR SNC0I1ATXAZDP NO YES Eli DEPTH? AVPM 717 Y4TrR AFTER A(ONITOA:- DATX. SES' AT,rd,C 'D P"T CD1r/rD M. NO IAlPE"FUBLES ENCOUNTERED SOK laieac ADEC n/EMW PER BR 1. Y/CNAEL E ANDERSON. certify that this test was performed in accordance with all ADEC yuidehnes in effect on this date. DIE, Lot 3 Alike Stolle Property MICHAEL E. ANDERSON YOfOe 0 1 2 s 4 s 6 7 e 0 10 if 12 u 14 is 16 17 to to 20 21 22 2J wars ARM josser OF J23T SRU SLQPE MOM O V WOO TEST HOLE ff 4—f DDnN TO eolf0u or PM MOLE 12 PRa*s) D"WWR of Pole MOLE: _¢_ (,NCHM) . PERPoRIIEa w.. T.L. K/MBROUGH JOAT OF MT. 3—f0—01 GROUND /TATER "CVzI%TZR"? NO YES F9 DEPTH? DBPTII TC v4r" j1pr" JfQf iralR• Jurr..- XffT ATTdCHrD PVT I COMMENTS NO IVPT"E"LES ENCOUNTERED SM RA/Ma ADEC A*71100 PER Wt 1. AdlCHAEL E ANDERSON. certify that this test was performed in accordance with oil ADEC guidelines in effect on this date. LATE: Lot 4 Azike Stolle Property AIMEL E. ANDERSON vof06 0 1 2 s 4 s s 7 s s to rr 12 IJ II 1s is A is is m 21 22 23 l V1 V 1 .L• A-7 .9 1113 1 1-1 TrST HOLD' of 4-2 D" 70 tio77ou or Me talc K� 12 (er) DwAEIER or PM HOLE _ r (Wafs) Porraum Or: T.C. KIMBROUGH cw>E of nsn 3-10-01 a?= D" MET PWDtEc taramots 7NEr 7r� OF � P WAM WAYM VMV . 14.45 f2' STARr f5:16' 30 9. 3" 10 ALeC tna :f$ 12' RSCRARa :46 30 9. Y. f0 M+ n." se, jw 16.• 171 30 1 1 9' 1 3- 1 fO I AAln l CRO!!ND Yd=R "C0UNTd'RBDY NO YES R DEPTH? fl f7 flBPTA R9 Ardr" A97TR A/OAffTDAL- AdTz.. POMAR W R47E _ ___.M MMAM PER NOL SX,r ATTACffrD PLlT N awMENTS. NO IAlPS"FUBMS ENCOUNTERED sats RAitWc AMC YE7HDa PER wt 4 MICHAEL E ANDERSON, certify that this test was peAor ed in oceordonce with all ADEC guidsfines in effect on this dote. DATE.' Lot 4 A4-&ke Stolle Property AUCHAEL E. ANDERSON 0 1 s s s 6 7 a s io 1 12 u u is is n 1s is 20 :1 u v t`�G1SC.LI.Lt z1V1V 1.4 J1 Lt1.tis TEST HOLE if 5—> t>Erm To Bonar or MC. NOM 12 (NCNEs) ear w CIVA71 re or PM MME. 6_ (Wigs) PERPoRIa t ar.• T.L. KIMBROUGH OTE or mT.• 3-09-01 GROSS NEr DEPM MEAS. NEr PERC. CONIEXIS TtK OF AMeriES AFM MOP plop MMS 9.• 15 1 12" 1 START :30 30 I I 1' f1" 2.7 Mu nux" aumr r/ JV" AUW or sonar ar SLOPE mr AVW 1: 461 90 1 1 1" I 11' 1 2-7 1 1 110.•021 30 1 1 to I 11" 1 2.7 1 rAn I GROUND aATER "COUNTZR"? NO YES DEPTH? DEPTdf TO NATER ANTER AfOMMO R• DSTd.• POWCOIAMN Aur - e 1e WMM PER VCH EL MAN SEE ATTACHED PLlT N COMMENTS. NO IAMPERMEADLES ENCOUNTERED Sills RAWAG AOEC IIETNW PER M 1• M1CMAU E AMDFRSON, certify that this test was performed in occordonce with os ADEC guidernss in effect on this date. DATE Lot S Alike Stolle Pro,prty AM'ICHWEL E ANDERSON 1v0f06 KJ. 0 a 4 s s 7 a a to it 12 u it is Is 17 is Is 20 21 u u .L iJ 1 Y V V iK i J • TEST XOLr >f 5-2 OC4W »ern+ TO eorrau or Ma MUL 12 pjacs) OMMEMR OF 1'M MOLL _6 (MCNE*+) NMI eram .rum+ -,W PEiKmam en _ T.L. KIMBROUGH Lwre a nmr.• 3-13—Of snsae ar >sa AMM 0 CROMP TdTSR ZNCODMBRSDP NO YES P9 DEPTH? DEPTH m AFIT" A17BR YON17M. DATa:- S,rr ATTACHED PL1T I COAIME r5: NO IAlPE"Z4BLES ENCOUNTERED SOLS MNG A= MERIoa PM sue 1. AE1Ch An E ANDERSON, eertlfl that this test was performed in accordance with oN ADEC guidelines in effect on this date. LUTE• Lot 5 AUCHAEL E. ANDERSON Alike Stolle Property vof08 .._.... _...._...._.._._...._._.._...._.._._.._....._...._... 0 z J 4 s s 7 s s io n 12 u 14 is is n is is 20 21 22 2J TEST HOLE jt 6—> Dian To sono or Pm Holt i 1�I .� V V V i./t i i _6 V .( • L I./ i �i/t 1 1 1 1 1 0-9M 1 ark or nmr• 3—f1—Of • DIM AFFASFR • .encs 0 z J 4 s s 7 s s io n 12 u 14 is is n is is 20 21 22 2J TEST HOLE jt 6—> Dian To sono or Pm Holt 12 emoom) OwArms or PFRC HOLE _6 (W J*S) powawa or _T.L. K/MBROUr.H ark or nmr• 3—f1—Of `W 7 rsE DIM AFFASFR DROP c° 'rs .encs er+iaa oaaP uN✓�. 9.• 15 fz" STARr :45 30 fo.s' f.s' 2D :461 lww IF= f 0.• f6 30 f0.5' f.s' 20 jarr-adyw�maz -1`7 nm w Aarynm -,w II I f2 10.49 30 10.5` 1f.5` 20 IB,yD ,oriw Or <1 fox s2= ADM SLOPE CROMD rJTZR "COUNTSRZDv NO rqzpl YES n DEPTH? DEPTH ft➢ F4TSR A.7SR AnWJ7LL£- DATE.• COuutxrs NO AMPERdfiABMS ENCOUNTERED SOU RATM AOW A&MM PFR laft. I, ARCHAa E ANDERSON, certify that this test was performed in accordance with all AD£C guidelines in effect on this date. DATE: Lot 6 Alike StOUe Property MICHAEL E. ANDERSON lIV106 0 r 2 3 4 5 a 7 a a to it 12 13 14 15 1s 17 is to 20 21 22 23 • AM I#= ,�»m 7/17 61)ADll�i - O r-1 craaaris S617W el 7ldf ION TEST AOLB f 6-2 Darn! To twr►cw or PM MOLE 12 l J om"Enm or AMC "ME. _6 (#CHM) Porsoftm w.. T.L. K/MBROUru DATE or MT. 3-11-01 dross T c DaOF ra+ AurtEiP oaoP maUK/04.Ca1111EN1s r lAKM WAMT ORM UK/04. 1>: 00 1z` SrAR, :.YO 30 »- 1" 30 1 12 I"CMRCB fZ-Of 30 30 1 :02 12 1 RArff"ar :32 30 11- >- 30 1 rAro fox GROUND /ITdR "COI/ATTxRMp NA YES tn DEPTH? APT" AfONlTM- DArS.- POMO AWN RAZE - j_ vents POP MCN SITE PLAN SJW ATTAMrD P"T N COMM&4m- NO IAIPERA "BMS ENCOUNTERED Seas Ou"m AMC MCPW POP tsP. 1, MICHAEL E ANDERSON, Certify that this feat was performed in accordance with all ADEC guidelines in effect on this dote. DATE Lot 6 Alike Stolle Properly AMCXAEL E. ANDERSON vofoe 0 2 3 4 s a 7 a a 10 I1 12 13 14 is to 17 is to 20 21 22 23 Li L/L.At3 1 1 V1 Y l l:r U 1 _urs .A n TEST ROLE 7-1 040aw OEPIM To Borrow or PM H1ot@ 12 (1 a*s) DNIe.7U Or PEAL, wrr. _ 6 (Wai S) povowm ar. T.L. KIMBROUGH DATE or mT..• 3-11-01 =AMff COMM" M.FAI'M° A nor AIM GROUND JUM d MMATTRM? NO Pq YES DEPTH? DEPTH 7b r4TER ART" MON17M. Jurr..- SEE ATT MED PUT N COMMENTS: NO IMPERMFUBLES ENCOUNTERED SOU RAIM ADEC I/ERIOa PER Ot 1. MICHAEL E ANDERSON, certify that this test was performed in accordance with as ADEC guidelines in effect on this dote. DATE: Lot 7 .Mske Stolle Property A/ICNAEL E. ANDERSON V0106 TEST HOLT k' 7-2 044W Dp7m TO Bonar Or Parc. HaL 12 (#xmm) DVA&WR Or Pate HOE ,6 (MCMN) Parma im er. T.L. K/MBROUGH DATE ar mT. 9-1>—Of �� A Amtir AS= GROUND /ATd'R "CVLrA7TRZDP NO YES M DEPTH? DT?79 TO /ATTR AFTER IAwme.- tura:• .1 SEE ATTACHED PLlT colratxrs NO IOPL'RAIEABLLES' ENCOUNTERED SMS RATMC ADM LAMM POP BR. 1• MICHAEL E ANDERSON. certify that this test was performed in accordance with all ADEC puideMes in effect on this date. DATE: Lot 7 MICHAEL E. ANDERSON Nike Stolle Property VO/06 o- 2 s� 4 s 6 7 e a to 1 12 13 14 is is 17 1s to zo 21 22 21 W7, eN iat xsmrr yAsr SLOPE TEST BOLE # 8—> DOWN To BOTfOW of PM MOLE: 72 ema4q) DMYEIER of PM MOM 6 (wcMEs) pm,& 1ED or T.L. K/MBROUGH w1E r 7M.' 8—f3—Of CROUJVD YATBR ZNCVZrATZP"P NO CD YES ❑ DEPTH? DEPTH 7Y) IATBR AnT,R JfONITM- JAITd:• SBA' ATTACffTO PLIT COAIMENS: NO IWE"F"LES ENCOUNTERED SO" RAIIW ADEC lE7HW PER ME 1. AllCH4EL E ANDERSON. certify that that lest was performed in occwdonee with o11 ADEC guldeltnes in effect on this dots. DATE: Lot 8 dike Stolle Property .illCh'AEL E. ANDERSON vof0S • 0 , 2 s 4 3 6 7 B a to 1, 1s ,1 14 1s is 17 to Is za 21 u 23 • TSST HOLE 8-2 ar..ar Da"N 7o Borrow or POPS lw r. 12 (smo*3) DAMEMr or Parc. TAME. _6 (wacs) POP mgD Br. T.L. K/MBROUGH wrE or n3r.• 3-13-01 irn'� � q►tLT SLOPE .��- GROUND IATZR ZNCOUNTdR"F NO YES F3 DEPTH? Af= mami aR.• DITX.. SBS' .ITFWM,D PL1T COMMENTS. NO MPL'R 04BLES .ENCOUNTERED sass RAnW ,foes AdUM00 POP BR 1. MIch4a E ANDERSON, carW that thin fast was performed in accordance with all ADEC guidaanes in effect on this date. DATE Lot 8 .Vice Stolle Property .VICHASL E. ANDERSON VOI08 o - 1 — z- a- 4 s- 6 - 7 e� e� /o 11 13 13 14 1s 16 17 to le 70 21 22 23 j�IA[OCn/o7/ �III9 JeAOw Y Yssr AWJ LOPE TEST HOLE )} 9 mew To sorrow or Pcnr:. Nae: 12 (R"CS) CMUMR OF PO1C HOLE 6_ (WCHM) PmaallEo sr: T.L. KIMBROUGH wTE or Tcsr.• 9-13—Of GROUND FITS/? X OUATA'RA'DP NO YES ❑ DEPTH? AMW A'ONIYVA* DATA:• SSE' ATIACXED FUT couutxrs: NO JWPA"EABUS ENCOUNTERED SODS RAIM ACEC A 7ND0 PER mt I, MICHAEL E ANDERSON, certify that this test was performed in accordance with oN ADEC guidelines in effect on this dote. DATE lot 9 ,i(ike Sloue Property AirCXAEL E. ANDERSON YOf08 _.......... _......... _......... _....... ._...._..........._...._._._. M 0 i 2 s s a 7 a a 10 if 12 r3 14 is 1s 17 to is 20 21 22 23 l i •' 1 L V V LAt3 1 1 V 1 V 1 L• ✓ 1 lJ1Y 1 tl • TEST HOLE' 9-2 awe DEPTH M DDT10N OF PM MME 12 (manes) 00AAE1ER or AMC. HA7tE 6_ (sanaes) PETrowm ar.• T.L. K/MBROUGH DAT: or 1Esc• 3—f3—01 eRon NET Dgmm MET CaMENts . TWE T" ArMRES MTER n DROP nv AMC/M• f4.• f0 12" START :40 30 JWW Ana :4f 12" RSC "I 15.•21 90 • s' s' S cakmem :22 12" Rac6ctRH a-FTY6 1S2 30 s' 6' S "D Jarfoe ar seer A" O w GROUND TATe'R "C0DA7SRSDP NO YES P9 DEPTH? ArIO 9 fO 1ATW ArTXR AfVATf - .Nrr.- RAZE Ari mm PER ocw SfIT PLAN SiB ATTdCMV PUT N COAfMENTS: NO IWE)WEMBLES ENCOUNTERED SOLS RA11AC ADEC uEMW PER ME L A0CMEL E ANDERSON, certify thot this fast woe performed in accordance with all ADEC guidelines in effect on this data. DATE., Lot 9 ifske Stolle Property AICIIAEL E. ANDERSON Y0f06 t'G !ti L Vl..ee'3 1 1 V1 V 1 L' a..J 1 Lta 1 a • r_.I 0 1 s J 4 1 e T s s 10 11 12 iJ 14 1s 1s n Is 10 20 21 22 zs TEST HOLE' 10-1 00"N TO Ba110Y or PEAL. HOLE 12 (wo,es) OMMM or PEAL HOLE �� (WCi9s) pavo m w. T.L. KIMBROUGH aTE Or TESL• 9-19-01 Jessie OF 2917 AMir 4 GROLW.D Ydr6R ZNCOUAIZRBDP w rvI YES In DEPTH? DEPTH M rAr" ARM AlOW"Tak- DATX. Sd'S ATTACBdD PGlT q N COMMENTS: NO IJIPE"EARLES ENCOUNTERED Sams MIM AM MEVM P" 0A: 1. MICHAEL E ANDERSON, certify that this test was Performed in accordance with all ADEC guidelines in effect on this date. DATE lot f0 JAke Stolle Property. AICHAEL E. ANTERSON Y0f06 0 1 2 J I J s 7 e 0 ,o 12 w 1s 1s 1s n 1e 1e 20 21 22 u .!-1i 1 1 y t/J—A Ad 1 1 f /1 V 1 G J 1 11tr3 J 1'i • TEST HOLE I f0-2 vw/" DEPTH RJ BOTTOM or MC HOLE 12 oma*s) WME7ER or PM HDM. . 6 (ea *s) PERPma er. T.L. K/MBROUGH DATE Or nsr., 3-13-0f GPM ACT E 1WOF Donm � � �C cO1mNn AWAAU WATER DROP N" 19:45 f2" STJRT 18.15 30 fas" f.s" 20 JrAr a :16 f2 JRec„A,Qcd :46 30 10.5' 1.5" 20 ►a„1 :471 f2" IRsr✓LtRcs 19.' f 71 30 1 f0. S" 1.S" 20 1fon ' � PnwcoiArloa RATE _ �,' WXgU PER BCH sanaw or ,ur.av SLOPE It CROMAW A'JTSR "COGNTdR"p NO YES t DEPTH? 11SPTH TO F4TER JAr" IfOMl7 M - AM SSE ATTJCHED A"T N CDuuENTs NO bVPE""BLES ENCOUNTEREp sans ftmv AXC UrDM PER BR. 4 ADCN4EL E ANDERSON, certify that this test was performed in accordance with all ADEC puiderwm In effect an this date. DATE Lot 10 Anne Stolle Property AICHAEL E. ANDERSON vof06 ,., 0 1 z s 4 3 6 7 a a to 11 12 1a 14 1s 16 17 to is 20 21 22 2s TEST HOLE i 1 f—f �✓�++� 0erir/ TO Borrow OF Paas. Hae 12 ) Caurn R or PERI maw 6 (mma) paws im or TL K/MBROOH DA7E of mr. 3-14—Of CROLMD JUM "CO&ArTAMWP NO YES R DEPTH? . f> PT DBPTl1 TO ,►m" AA77R ira/Vl ak. Mir.. q SBB A7TACfJd'D P4lT N COMMENTS. NO IAlPE""BLES ENCOUNTERED sols RATWC AOEC MEMO PER But L MICHAEL E ANDERSON, certify that this lest was performed in accordance with all ADEC guidelines in effect on this dote. DATE. Lot 1f JAke Stolle Property Af=XrL E. ANDERSON Y0f06 .1 i •.1 L L� VJ-AA4l 1 1 Vl V 1 L' J 1 .L/tY 1 h ! t—Mti1 0 S 3 5 6 7 a e tD II n 13 14 is is 17 to to ao 11 u 23 user Lf/IL I�p TEST HOLE ,{ _Lf —2 Dern+ TO BMW Or MM HOLE 12 (wars) PEI1faw" ar. T.L. K/MBROUGH wr. or nsr.• 3—f4—Of GROUND /ArZR "CVIINTSRM? NO YES R DEPTH? 9 #T ArPM IV TATdR ARM A/OiVlfM. QATd.- X,rr AT!ACII" PLdT Ar COAMENM NO IJIPE"FUBLES ENCOUNTERED sons RAto 0 ADM WNW POP at L A/ICHAEL E ANDERSON. certify that this test was performed in occordonee with all AD£C puideffrms In effect on this dote. DATE: Lot f Arzke Stolle Property MICHAEL E. ANDERSON Moe 0 i z s 4 S s 7 s s io u u u Is is is 17 is IQ 20 zl u za 1YG'U1,A 11 U1V 1L`''J'1 TEST NOLE j 12-1 Dean To so7roir or MC M E 12 pNerees) DMNEMW OF PM NMC- . 6 lean 5) HR77rmam er: T.L. K/MBROUGH w r or msr• 3-14-01 GPM r ofFM PPUM COMAE s 7WPAN TY I" OF wmr � Door DW r �/u+• 9.•50 12" START 10.•20 30 ss' ss' 46 :2f 12" RAC/MRM '-Y :51 30 ss` S. 4 6 52 12" 1 1 1 RBCZ"M a 11:22 1 30 1 1ss`1 8.5" 1 4.S ",v .N,- -- - i CROLMD UT" "COZ/A7dR"F NO YES R9 DEPTH? MJIM 717 ArMR AFF" A/ONJ7vue! Iwff.• PEscDunaN avE - 4,k m w rn PEs s+cN SWr AMM" PIAT N CDMMEMM. NO MPE"ZABLES ENCOUNTERED SOU sATsie Dec MEn�oD PER Bs. 1. MICHAEL E ANDERSW. certify that this test was performed in accordance with as ADEC guidelines in effect on this dote. GATE. lot 12 AUCNAEL E. ANDERSON Alr.Ee Stolle Property V0108 0 1 2 s 4 s s 7 e D 70 11 12 13 14 is 1s 17 1e 19 20 21 22 23 Yt Z! t (. CALA x1 l 1 C/1 V 1 G J 1 1/t3 1 tt TEST HOLE I 12-2 DO" to Bo1Tau or PflMc. MOLE: 12 (#Macs) awraw or Ma HOLF-. (00040) rtxrvrtrMEO w.. T.L. K/MBROUGH DATE ar MT.' 9-14-01 CROMM r4TAR "CVZrA7ZR"P NO YES R9 DEPTH? APT" A/ON/Ta&' AdTz.* q sET ATTACNd'D plAr N COMMENTS: NO IAlPE"F.4BLXS ENCOUNTERED SOILS ROM AOEC METHOD PER ME 1. WCFNEL E. ANDERSON. certify that this test was performed in accordance with all ADEC guidelines in effect on this dots. LATE: .Lot 12 Alike Stolle Property AUCHAEL E. ANDERSON ProfOB 0 2 J 4 J e 7 D D 10 I1 12 13 14 15 1s 17 1s ID 20 21 22 23 UZA49 11(/1 V J1:A- 1 LJh 1 �1 TEST AOLr ROAD DErm To sorrow or pom mm 12 (evfa) PE1vow,w sr. _T.L. KIMBROUGH DATr or lesr 9-14—O> CROLWD rdffA ZA/COOATrAWP NO YES O DEPTH? MPTtr m rITrR Apr" iraviToW twrr. q SSR' .ITTACHdD PL1T N COUM& .- NO ILPF"F,4BLES ENCOUNTERED sues lulec AOEC 6E1N00 Pot a*. 1. AIACHAEL E ANDERSON. Certify that this test was performed in occordonce with o9 ADEC guidelines in effect on this dote. DATE ROAD Like Stolle PropenAy LICHWEL E. ANDERSON VO/06 MUNICIPALITY OF ANCHORAGE MEMORANDUM DATE: August 27, 2001 TO: Don Dolenc, Land Use Enforcement Mada Hansen, Traffic Department Jim Cross, On -Site Water and Wastewater Services Bob Palmer, Project Management & Engineering Lynn McGee, Right -of -Way FROM: Margaret O'Brien, Planning Department SUBJECT: Case S-10811 Grandview Subdivision Attached is a revised preliminary plat for Grandview Subdivision that was submitted late afternoon of Friday, August 28. 2001. It is in response to issues raised at a joint division case review meeting for September 5. 2001 Platting Board public hearing cases held on 8/17/01. A number of issues were raised that included: 1. Extending Snow Bear Drive to the west property boundary for future circulation needs to undeveloped property to the west and south. 2. Showing the building pads on the plat. 3. Showing the locations of the primary and two secondary septic sites on the plat. 4. Showing the driveway access points that meet Municipal driveway standards to determine if the variance from AMC 21.80.330 for lot depth -to -width can be met. 5. Providing average slope calculations for all the proposed lots. 6. Information on what appeared to be a stream in the northeast corner of the property. The above items generally have been addressed. The septic sites are not shown on the plat. Conversation with Tom Dreyer 8/17/01 indicated that the septic sites will be located where the tests were performed. Conversation with Dave Grenier on 8/24/01 indicated that there is not a stream in the northeast comer of the property that would require a stream maintenance setback. If you have any revisions to your original comments, "please let me know as soon as f possible as this must be"completed by Wednesday in order to be distributed to the Platting Board on Friday morning. I am sorry for the lateness of this request for additional review, however, you input Is important to the review process. Thank you in advance for you assistance with this case. m CM.01d\PLAMNGM01y1.1\1091 1m A= TERRASAT, INC. 1413 West 31' Avenue, Anchorage, AK 99503 (907) 344-9370 Geological Consulting Environmental Restoration Regulatory Compliance Snow Avalanche Evaluation for the proposed Grandview Subdivision Prepared for: Stolle Investments, Inc. 14020 Jarvi Drive Anchorage, AK 99515 M TERRASAT, INC. 1413 West 313`Avenue Anchorage, AK 99503 January 7, 2002 P.\20117-Grandview\I-7-02 Grandview Avalanche Repon.doc REGElVED JAN 0 7 2002 MUNICIPALITY OF ANCHORAGE COMMUNITY PLANNING & DEVELOPMENT S -10811 Pagel of4 INTRODUCTION Stolle Investments, Inc. contracted TERRASAT, INC to evaluate the potential for the occurrence of avalanches in the Proposed Grandview Subdivision, Anchorage, Alaska. Our scope of services includes: Evaluating historical avalanches from aerial photography. Conducting a brief field investigation. Making recommendations based on our findings to determine if additional investigation is warranted. Site Description The Proposed Grandview Subdivision is located east of Bear Valley in Anchorage, Alaska (Figure 1). The sectional description for the area is the N1/2 of the SE %4 of Section 6, Township 1 l North, Range 2 West, Seward Meridian. OBJECTIVES Our objectives for this project are to determine the extent of avalanche activity within the proposed subdivision. DATA SOURCES Aerial Photography TERRASAT, INC examined aerial photographs to gain an geology. We examined both high-altitude color infrared geological trends and low -altitude color photos to evaluate influenced by avalanche processes. We examined the following photos using a stereoscope: August 7, 1950 August 12, 1957 September 1978 August 1984 June 27, 1985 June3,1990 September 5, 1996 September 3, 1997 September 17, 2000 black and white black and white color not in stereo color infrared black and white color color color color DATA INTERPRETATION understanding of the regional photos to identify regional local features that are likely Aerial Photography Most of the upper hillside within the proposed Grandview Subdivision is composed of consolidated rock. The upper slopes appear to be covered with a thin veneer of soil (1 to 2 M20117-GrandviewU-7-02 Grandview Avalanche Report.doc Page 2 of 4 feet thick) that is likely undergoing creep from freeze -thaw cycles. The lower slope within the proposed development has a narrow low-lying ridge that is parallel to the slope. We interpret this to be the remnants of a glacial lateral moraine. Aerial photos show that two shallow gullies have partially eroded into the consolidated rock on the upper slope and bisected the lateral moraine on the lower part of the property. Photos from 1950 show that vegetation below the two gullies is mostly grass or low lying shrubs. This vegetation pattern extends from the gullies down slope to the tops of the lateral moraine and continues down slope to where the moraine is bisected. We interpret this to mean that either this area has had repetitive unusually high snow accumulations restricting vegetation growth, or an avalanche that removed the native shrubs that populate the rest of the hill slope. The possibility of a large avalanche in this area appears unlikely because deposition of soil and debris at the toe is not observed. Photos from 1958 through 1985 show a sequence of re -vegetating the grassy areas with taller shrubs similar to the remainder of the lower slope. Photos from 1990, taken in early June, have sufficient detail to observe debris or soil that was deposited above the moraine and within the erosional channel that transects the moraine. This suggests that mass wasting occurred before June of 1990 and after 1985. The 1985 photos also show evidence of mass wasting immediately above the lateral moraine where a small debris -like ridge has formed. Together, the 1985 and 1990 photos suggest that several events occurred in a confined area associated with the two shallow gullies on the upper slope. Figure 1 shows the area with the most activity and the depositional areas. The 1985 photos show a very small area at the end of the lower road where vegetation patterns are different than the surrounding area. This is interpreted as a small, narrow mass wasting event. The 1990 photos show evidence of erosion in the same area with possibly some debris accumulation at the toe of this small feature. This is not mapped on Figure 1 but can be seen on the west edge of the figure, both above and below the road. Photos from 1996, 1997 and 2000 are taken later in the season. These photos show an increase in vegetation and shrubs within the mapped area of Figure 1. The increase of vegetation may suggest that snow accumulation or avalanche conditions have decreased for the last 10 years. CONCLUSIONS Photo interpretation shows evidence of mass wasting in two shallow gullies and one small area west of the gullies. The mass wasting likely resulted from snow avalanching and coalescing down hill from the source. The small amount of debris at the toe of this mass wasting suggest that the mass wasting has been minimal during the last 12,000 years since the last ice age. Historical photos dating back to 1950 show a vegetation pattern that suggests snow accumulation is sufficient in the area beneath the two shallow gullies to alter some of the terrain and effect the vegetation. Although vegetation re -growth suggests the hill slope is stabilizing, mass wasting will likely continue to occur in this area. P:\20117-Grandview\l •7-02 Grandview Avalanche Report.doc Page 3 of 4 We recommend field investigations be employed to verify these photo interpretations before building a structure in the area mapped or in the small area at the end of the lower road. Please contact us at 344-9370 if you have any questions. Professional Signatures C, - Dan Young Senior Hydrogeologist Certified Professio6Ggplst Ground Water Professional P.\20117-Grandview\I-7-02 Grandview Avalanche Report.doc Page 4 of 4 t loi I TERRASAT, INC. 1413 West 3111 Avenue, Anchorage, AK 99503 (907) 344-9370 Geological Consulting Environmental Restoration Regulatory Compliance Ground Water Evaluation for the proposed Grandview Subdivision Prepared for: Stolle Investments, Inc. 14020 Jarvi Drive Anchorage, AK 99515 LE TERRASAT, INC. 1413 West 31" Avenue Anchorage, AK 99503 RECElVED JAN 0 7 2002 January 7, 2002 1.1UNTI?ALITY OF ANCHORAGE CUfA7dUNI IV FLA UP;IPVC & DEVELOPMENT �- 101 1� TABLE OF CONTENTS INTRODUCTION.........................................................................................1 Site Description.............................................................................................................. I OBJECTIVES................................................................................................1 DATASOURCES..........................................................................................1 Aerial Photography & Geologic blaps.......................................................................... I Well Logs........................................................................................................................ I DATA INTERPRETATION........................................................................2 Aerial Photography & Geologic blaps.......................................................................... 2 Local Hydrogeology....................................................................................................... 2 Aquifers and Well Yields............................................................................................... 3 Local Geology and Bedrock Occurrence...................................................................... 3 Static {rater Levels......................................................................................................... 3 Nitrate Occurrence......................................................................................................... 4 CONCLUSIONS............................................................................................4 RECOMMENDATIONS .............................................................................. 5 PROFESSIONAL SIGNATURES...............................................................5 FIGURES Figure 1 Site Location Map Figure 2 Well Index and Locations Map Figure 3 Well Yield Map for Local Water Wells Figure 4 Well Depth Map for Local Water Wells Figure 5 Depth to Rock for Local Water Wells Figure 6 Aquifer Type for Local Water Wells Figure 7 Static Water Levels for Local Water Wells Figure 8 Nitrate Occurrence in Local Water Wells TABLES Table 1 Well Log Summary INTRODUCTION Stolle Investments, Inc. contracted TERRASAT, INC to evaluate the ground water conditions in the Proposed Grandview Subdivision, Anchorage, Alaska. Our scope of services includes: • Estimating the water production potential for the proposed subdivision and potential impacts to surrounding well users based on the available hydrogeologic information. • Evaluating the aquifer conditions based on current available information for the area. • Making recommendations based on our findings to determine if additional investigation is warranted. Site Description The Proposed Grandview Subdivision is located southeast of Bear Valley in Anchorage, Alaska (Figure 1). The sectional description for the area is the N1/2 of the SE'/. of Section 6, Township 1 I North, Range 2 West, Seward Meridian. OBJECTIVES Our objectives for this project are as follows: • Estimate the potential of adequate water supplies for single-family wells on lots in the Proposed Grandview Subdivision; • Determine the volume of water that will be considered adequate for a typical single- family home; • Estimate the potential impacts to water wells in the surrounding area. • Determine if nitrates will likely be a problem in the proposed subdivision or surrounding area DATASOURCES Aerial Pit otograplry & Geologic ltfaps TERRASAT, INC examined aerial photographs to gain an understanding of the regional geology. We examined both high-altitude color infrared photos to identify regional geological trends and low -altitude color photos to evaluate local features that may influence or control the flow of ground water through the area. We also examined the United States Geological Survey's (USGS) Water Resources report entitled Hydrogeology for Land -Use Planning: the Potter Creek Area, Anchorage Alaska (USGS Water Resources Investigations Open -File Report 82-86, 1986). This report summarizes the surface geology of the Bear Valley area and contains maps that show the topographic slope and estimates of depth to bedrock for this region. Well Logs TERRASAT, INC identified 31 water wells within %2 mile of the proposed subdivision. We acquired 22 driller's logs plus five descriptions for water wells on file with the Department of Natural Resources (DNR), the Municipality of Anchorage On -Site Water and Wastewater PA20117-Grandview\I-7-02 Grandview Water report.doc Page 1 of 5 Services, or on file with the United States Geological Survey. We tabulated information from the available well logs into a spreadsheet (Table 1). Information provided by the logs includes well location, well yield, well depth, depth to bedrock, aquifer type, and static water level. One or more parameters are missing for some of the wells. Using a geographical information system (GIS), we plotted the water well locations based on the DNR coordinate reference system of Section, Township and Range. We labeled wells according to an assigned index number from our database (Figure 2). The GIS system enables TERRASAT, INC. to make links between spatial data, well locations, and ancillary information such as well elevation, well depth, depth to bedrock, or the physical description of each well. The power of the GIS is that it allows us to create new maps based on queries of the ancillary information attached to each well location. We use these new maps to look for trends within the data. General practice for evaluating depth to ground water requires all water levels be measured in a very short time period, as static water levels may vary in response to stream levels, rainfall, pumping, and seasonal variations. Accurate measurement of water levels is important to determine the sources of water and to determine if now paths change seasonally. Data from the driller's log represents water levels from different times, often years apart, and may provide a poor representation of the static water levels in the area. DATA INTERPRETATION Aerial Photography & Geologic lllaps Interpretation of local large-scale geologic features reveals that bedrock gently slopes to the north-northwest. Several northwest -southeast linear features were observed near the property. These features are interpreted as a possible geologic faults. Faults are not only common geologic features that control the flow of local surface water, but also tend to be good conduits for ground water. The U.S.G.S. Water Resources Investigations Open -File Report 82-86 evaluates the ground water resources in the Potter Creek area, including Rabbit and Little Rabbit Creeks. This report shows that an estimated 6-8 ft3 per second of ground water flows beneath the Potter creek area. The authors analyzed local precipitation amounts, local recharge, and compared these values to the amount of water flowing out of the Potter Creek area, discharge. They determined that the amount of water leaving the Potter Creek area as surface water, water lost to the atmosphere, or as ground water is more than the amount of recharge that results from annual precipitation. They conclude that a significant portion of the ground water that flows beneath the Potter Creek drainage basin comes from sources east of the valley higher up in the Chugach Range. Local Hydrogeology TERRASAT, INC developed a hydrogeological model for the area. Our model suggests that the dominant aquifers in this area are bedrock aquifers. We believe that the ground water occurrence and flow within the area is controlled by structures in the regional and local bedrock. The features in bedrock aquifers that have the strongest control on ground water PA20117-Grandview\I-7-02 Grandview Water report.doc Page 2 of 5 occurrence and flow are fractures and faults. Recharge for this aquifer appears to be from sources both within and beyond the Bear Valley area (U.S.G.S. Water Resources Investigations Open -File Report 82-86). Some potential sources within the area include the streams that likely recharge the bedrock aquifers. Other potential sources outside the Bear Valley area include recharge from higher elevations to the rock fractures that are hydraulically connected to local aquifer systems. Aquifers and Well Yields Past ground water studies, conducted by TERRASAT, INC on the hillside in Anchorage, have suggested that most wells in bedrock aquifers will typically produce less than 0.5 gpm. This production rate is generally considered marginally adequate for single-family homes. The Municipality of Anchorage has determined that a well provides adequate water for a single family home if it produces 0.35 gpm per bedroom (150 gallons per day per bedroom). A well for a three-bedroom house, therefore, must produce just over 1.0 gpm to be considered adequate. Figure 3 shows the available well yield data for the local water wells. The data suggests that the bedrock aquifers in this area produce adequate water for typical single-family homes. The average yield based on the median value, for the local bedrock wells is over 6.0 gpm. Figure 4 shows the well depth for the local water wells. Several close proximity wells are shown to intercept water at different depths. Initial interpretation of this data suggests that multiple aquifers exist beneath the area. Based on available well yield information, one well with a yield of less than 1.0 gpm exists within %2 mile of the proposed subdivision. This well is located on Lot 4, Block 2 of Bear Valley Subdivision and is 200 feet deep. This well derives its water from an unconsolidated aquifer at a depth of 195 feet. All other water wells appear to produce at least 2 gpm (Table 1). This suggests that most bedrock wells near the proposed Grandview Subdivision should produce 2.0 gpm and thus be able to support homes with at least 6 bedrooms. Local Geology and Bedrock Occurrence Available logs show that most of the wells within %2 mile of the proposed subdivision intercept bedrock at depths varying from 10 to 79 feet below ground surface. Only six of these wells encounter bedrock at depths less than 30 feet (Figure 5). These wells are cased to the bedrock interface or into unweathered bedrock and intercept fractures at varying depths. The bedrock fractures are the apparent source of water for these wells. Five of the wells near the proposed subdivision are completed in unconsolidated aquifers and get their water from sand or gravel (Figure 6). Static Water Levels Available logs show a range of static water levels from 0 to 175 feet below the top of casing at the time of drilling. We have placed the static water levels into several representative groups (Figure 7). Shallow static water levels in two wells near the southwest comer of Stolle Subdivision may suggest that these wells are hydraulically connected to the nearby stream. Deeper static water levels in the other wells in Stolle Subdivision may suggest that they are hydraulically connected to the stream to the northeast. This means that these two groups of wells are likely in different aquifers. A wide range of static water levels in Bear PA20117-Grandview%1-7-02 Grandview Water report.doc Page 3 of 5 Valley Subdivision suggests that wells on some adjacent lots may be getting water from different aquifers. Nitrate Occurrence TERRASAT, INC. compiled water quality information for 21 of the local water wells. Figure 8 shows that the nitrate concentrations range from 0.1 to 6.27 mg/L. The highest nitrate value occurs in a well of unknown depth, with a depth to rock of 40 feet. We presume that this well may have no grout seal at the bedrock interface and that nitrates likely enter this well around the casing. Previous studies of nitrate occurrence on the Anchorage Hillside have shown that wells without grout seals commonly have higher nitrate concentrations than those with grout seals. This is consistent with our conceptual model of how nitrates enter water wells. Our model allows for nitrates to move downward and along the soil/bedrock interface with the shallow ground water. Thus, the nitrates undergo minimal dilution before entering a well with no grout seal. CONCLUSIONS TERRASAT, INC has developed a conceptual geologic model for the Proposed Grandview Subdivision based on our review of the aerial photographs, hydrogeological reports, and available well logs. We conclude that the proposed subdivision is underlain by bedrock covered by a thin deposit of glacial till. The proposed subdivision sits on a northwest -facing slope. Possible fracture systems appear to trend northwest -southeast. These fractures appear to control the direction of surface water flow in the area flow. Based on the information provided from the well logs and observations from aerial photography, we conclude that local topographic features probably have little effect on regional ground water flow. The hydrogeology beneath the proposed subdivision is complex, but the ground water production ability of the area appears capable of supporting single-family residences with at least six bedrooms. Residential bedrock water wells in the area surrounding the Proposed Grandview Subdivision have a minimum average yield of 6 gpm, which is much greater than the consumptive need for a typical three-bedroom, single-family home. Based on our geological and hydrogeological evaluation of the area, residential water wells in the proposed subdivision should have yields comparable to those in the surrounding subdivisions, assuming wells encounter subsurface fractures with water. We conclude that the aquifers identified in the surrounding area also likely underlie the Proposed Grandview Subdivision. These aquifers should produce adequate water for individual wells on each lot. Based on available information, the fracture systems exploited by local wells appear to be common throughout the area and are capable of producing usable quantities of water. Previous studies of this area suggest that significant recharge of the bedrock aquifers occurs from both inside and outside the local drainage basin. Based on this investigation, potential impacts to surrounding water wells from development of the proposed subdivision will likely be insignificant. Nitrate occurrence in water wells in the area surrounding the proposed subdivision does not appear to be a significant problem. A few wells in the area, however, are experiencing moderate levels of nitrate. These levels are below the regulated limit of 10 mg/L., but will PA20117-Grandview%1-7-02 Grandview Water report.doc Page 4 of 5 likely increase with time. We presume that the sources for the nitrates are likely failing on- site septic systems. A failing septic system, together with an insufficient grout seal in the water well, may account for the elevated nitrate values observed. Percolation test data for the proposed subdivision show soil thickness greater than 14 feet. Well data from Stolle Subdivision show soil thickness from 24 to 36 feet. This information indicates that septic effluent will be subject to more natural filtration than common in other Hillside areas. This will likely tend to reduce the concentration of nitrates in shallow ground water at the soil/bedrock interface. RECOMMENDATIONS New water wells drilled in the proposed subdivision are likely to encounter bedrock at depths less than 40 feet. TERRASAT, INC. recommends that well construction include overdrilling by 20 feet and pressure grouting the well casing into the bedrock where bedrock is less than 40 feet deep. Please contact us at 344-9370 if you have any questions. 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S-10918-2 Creekside Park Subdivision with Vacation and Variance Postponed indefinitely. CL -----"S-10811-3 Grandview Subdivision Meeting adjourned at midnight. The public hearing had been closed and the matter rests with the Board. Case carred over to 12/18/02 to appear on the agenda under Old Business. g. S-10990 Kincaid Estates Subdivision with Vacation and Variance Case carried over to the 12/18/02 Platting Board meeting. G. PERSONS TO BE HEARD H. REPORTS i. Chair 2. Secretary 3. Community I. Board Member Comments Adjourn at 12:00 a.m. m 0:%wn-plal\PBSOA\PEaoa2002\s 12.04-02.dw MUNICIPALITY OF ANCHORAGE PLATTING BOARD SUMMARY OF ACTION DECEMBER 18, 2002 A. ROLL CALL Board Members Present: Caress, Deak, Hooyer, McKay, Poulton, Richter, Shriver, Walsh Board Members Excused: Capps Staff Present: Weaver, O'Brien, Soule, Schanche B. SUMMARY OF ACTION AND MINUTES 1. Summary of Action 2. Minutes C. CONSENT AGENDA E. OLD BUSINESS a. [5-10811-3 Grandview Subdivision Approval of variance from AMC 21.80.240 (cul-de-sac length) for Snow Bear Drive. Approval of the variance from AMC 21.80.300 (3:1 lot depth -to - width ratio). Approval of the variance from AMC 21.80.25 (cul-de-sac length) for Honey Bear Lane. Approval of the plat subject to: 1. Resolving utility easements. 2. Show the high and moderate avalanche hazard zone boundaries as approved by the Municipal Geotechical Commission on the plat prior to recording a final plat. 3. Dedicate a temporary turnaround at the western terminus of Snow Bear Drive. Platting Board Summary of Action December 18, 2002 Page 2 4. Submit the following to Project Management and Engineering: a. A site grading and drainage plan for this development as part of the construction plans required under the subdivision agreement. Grading and drainage plan show all existing and proposed drainage features, topography, post development drainage patterns and erosion control measures. b. An erosion and sediment control plan for approval. Prior to the commencement of any land clearing activities, sufficient erosion and sediment control measures shall be implemented on site to prevent the transport of sediment beyond property boundaries or into existing development setbacks and/or stream maintenance and protection setbacks. C. A Storm Water Pollution Prevention Plan approved by the Alaska Department of Environmental Conservation (ADEC), if required. d. Designs for roads reviewed by a professional geotechnical engineer. 5. Enter into a subdivision agreement with Private Development for: a. Construction of Snow Bear Drive and Honey Bear Lane to rural, gravel street standards as prescribed by AMC 21.85.030 C. b. Construction a temporary turnaround at the proposed western terminus of Snow Bear Drive. C. Traffic control devices, street illumination, and street name signs. d. Drainage improvements. C. Sediment and erosion control. f. Installation of telephone and electric. Platting Board Summary of Action December 18, 2002 Page 3 g. Gas utility, if provided. h. Monumentation. 6. Submit information to satisfy the requirements specified by AMC 15.65 and AMC 21.15 to On -Site Water and Wastewater Services that includes, but may not necessarily be limited to: a. Soils testing, percolation testing and ground water monitoring results must be submitted on a municipal soils log form. Ground water monitoring must be conducted during high ground water season in either the fall (October) or spring (April -May). b. Areas designated for the original and replacement wastewater disposal system sites (reserve areas) must be identified and must meet all criteria specified in AMC 15.65 including slope and slope setback requirements. Test holes must be labeled on the site plan. C. Supporting documentation on water availability must be provided. This documentation shall include an hydrologist's report stating the expected quantities of groundwater available to this subdivision and the effects of the appropriation of water to serve this subdivision on adjoining properties. 7. Show the 33 -foot wide section line easement along the east property boundary and the 50 -foot wide section line easement along the west property boundary of Section 5. 8. Place the following notes on the plat: a. No construction or excavation shall be permitted within 100 feet of the mean high water line of any stream in accordance with the R-10 (Residential Alpine/Slope District) regulations. b. No permanent structure shall be located within the boundaries of the avalanche hazard zones. Platting Board Summary of Action December 18, 2002 Page 4 C. This property is subject to "Chugach" winds of up to 100 miles per hour and has areas susceptible to snow or soil creep. All house designs and designs for other structures shall be reviewed by a professional structural engineer and designs for driveways shall be reviewed by a geotechnical engineer prior to applying for a building permit. Driveways must be constructed not to exceed 10% grade. 9. Resolve trail access to the park with the Municipal Trails Coordinator. 10. Make the following drafting changes: a. Street name on Vicinity Map: Golden View Dr. not Goldenview Dr. b. Map information: North of platted area, Lots 1-3 are in Block 1. Lots 1 & 2 between Snow Bear Drive and Honey Bear Lane are in Block 2. Lot 1 east of Honey Bear Lane is in Block 3. 11. Redesign of Honey Bear Lane extending the road to Chugach State Park. Design and location of trail access to be resolved with the Trails Coordinator and Project Management and Engineering. F. NEW BUSINESS Public Hearings a. S-10990 Kincaid Estates Subdivision with Vacation and Variance A. Approval of the request to vacate the east 370 feet of West 80th Avenue. B. Approval of the request to vacate the utility easements subject to the non -objection of all affected utilities. C. Approval of the request to vacate the screening easement along the east boundary of St. John Subdivision subject to replacing the screening easement along the east boundary of the re -configured Lots 1-8 in Tract I Platting Board Summary of Action September 3, 2003 Page 2 b. S-10811 Grandview Subdivision — Clarification/ Modification of Conditions of Approval Request for clarification/ modification of the Conditions of Approval withdrawn by the petition in letter dated 9/3/03. F. NEW BUSINESS 1. Public Hearings a. 5-�994L2 Carey Subdivision — with Variances Approval of the variances from AMC 21.80.330.A (lots to front onto a public street), AMC 21.80.010 and AMC 21.85.070 (right-of-way dedication) and 21.85 Table A (urban street standards). Approval of the plat for 18 months subject to: 1. Resolving utility easements and identify the BLM easement as a utility easement for the possible future extension of public water and sanitary sewer. (Note: CEA and ACS require a 20 -foot T&E easement centered over the existing overhead line as well as anchor easements which are partially located within the 50 -foot BLM easement.) 2. Provide a 20' easement for the Coastal Trail through the subject property along the toe of the bluff and a 20' easement along the west boundary of Lot 1 for pedestrian access to the extension of the Coastal Trail. 3. Provide a vegetative non -disturbance setback to maintain undisturbed natural vegetation for slope stability, the location and width to be resolved with the Planning Department. 4. Survey the existing private driveway to verify that it is located entirely within the 50 -foot BLM easement shown on the plat. Provide an access easement for any portion of the driveway that KENNETH P. EGGERS, P.C. SALLY J. KUCKO DENNIS O. FENERTY DAVID A. DEVINE. P.C. ROBERT H. SCHMIDT JILL E. JENSEN CLIFFORD J. GROH, SR. 1926.1998 Jerry T. Weaver, Jr. Municipality of Anchorage Planning Department 4700 S. Bragaw Street PO Box 196650 Anchorage, AK 99519-6650 LAW OFFICES OF GROH EGGERS, LLC 3201 C STREET, SUITE 400 ANCHORAGE, ALASKA 99503-3967 July 3, 2003 Telephone (907)562-6474 Facsimile (907) 562-6044 a .groheggers.com VIA FAX: 343-7927 ORIGINAL VIA US MAIL Re: Request for Clarification and/or Modification of Conditions on Remand (6/18/03) Grandview Subdivision Case No. S-10811-3 Our File No. 81-96-1 Dear Mr. Weaver: In furtherance of the meeting held on July 1, 2003, with you, Margaret O'Brien, Dave Grenier and myself, this letter is a request for clarification and/or modifications of the conditions imposed by the Platting Board on June 18, 2003 on the remand from the Municipal Clerk to the Platting Board. This was a remand to address Condition Nos. 9 and 11 of the Platting Board Summary of Action on December 18, 2002. On June 18, 2003, the Board approved the plat with a reconfiguration of Honey Bear Lane terminating Honey Bear Lane at the north boundary of Grandview Subdivision. The Board conditioned its approval on Lot 1 being tracted out and left unimproved for a period up to 18 months (which may be extended based on the request of either party with subsequent 18 month time extensions for the preliminary plat approval), and on the owner agreeing to work in a good faith effort with the Heritage Land Bank to negotiate a fair market value for either sale, lease or land trade of Lot 1. The plat the Board approved also included a reconfiguration of Lot 1 from the original preliminary plat approved on December 18, 2002, in order to make this proposed sale, lease or land trade for use as a parking lot feasible. The Board also provided that there would be a 20 -foot wide pedestrian access easement to Chugach State Park along the north or south boundary of Lot 1 or an alternative location as approved by the Municipal Trails Coordinator, and that this easement would be automatically vacated in the event of a lease, sale or land trade of Lot 1 with the Heritage Land Bank. Jerry Weaver, Jr. July 3, 2003 Page 2 This request for clarification and/or modification is necessitated by the fact that the Board provided that if the sale, lease or land trade was not successful, Conditions 9 and 11 approved on 12/18/02, would be reinstated. This creates a great deal of uncertainty and an impossible situation for the petitioner. The whole purpose of Condition 11 (the extension of Honey Bear Lane to Chugach State Park) was to ensure local pedestrian access to the Park. No one argued for vehicular access. As was shown by the evidence presented by the petitioner at the original hearing and on remand, the road extension to the Chugach State Park is not feasible or approvable by project management and engineering since the existing topographic features along the proposed road alignment are extreme and not appropriate for vehicle access to the Park. Massive cuts and fills would be required to meet acceptable Municipal standards for road access. Construction of a parking lot within the State Park is also not feasible due to extreme existing topographic features, and additionally the testimony of Jerry Lewanski, Superintendent, Chugach State Park shows that there is no plan for a road or parking on the Chugach State Park land adjacent to the Subdivision and the extended road. Access to the Chugach State Park has been guaranteed by the fact that there will be a 20 -foot wide pedestrian easement in the event that a sale, lease or land trade of Lot 1 cannot be negotiated with the Heritage Land Bank (Condition No. l.b.). There is simply no need for Condition No. 11. There is also no need for Condition No. 9 which required resolution of trail access to the Park with the Municipal Trails Coordinator since the guaranteed 20 -foot easement provides for such access. The contingent reinstatement of Conditions 9 and 11 serves no purpose other than to confuse the status of the preliminary plat approval. What happens if Conditions 9 and 11 are reinstated? The preliminary plat approved on June 18, 2003 provides for termination of Honey Bear Lane at the north boundary of Grandview Subdivision and for reconfiguration of Lot 1. If Conditions 9 and 11 are reinstated, does the original preliminary plat approved on December 18, 2002 somehow come back into existence so that Honey Bear Lane can be extended to the Park? As a practical matter, the petitioner will be precluded from developing Lots 1 and 2 for up to 36 months. Additionally, it is not clear if the Board is requiring the petitioner to merely dedicate an easement for the road or whether the Board is requiring the petitioner to build a road which the petitioner's engineer believes to be physically and economically unfeasible. Since parking on the road will be illegal and since Chugach State Park has no intention (and petitioner believes no engineering ability) to build a parking lot in the Park, this will truly be a costly and useless road to nowhere. We believe that the potential reinstatement of Conditions 9 and 11 creates more problems than it solves. The newly approved conditions which assure the public of a 20 -foot access easement to the Park if a sale, lease or land trade of Lot 1 with the Heritage Land Bank is not accomplished, is more than adequate to meet the desires originally expressed with respect to access to the Park. Jerry Weaver, Jr. July 3, 2003 Page 3 Petitioner requests that this matter be returned to the Board as soon as possible for clarification and/or modification of these conditions. The Department's recommendation made to the Board on June 18, 2003, should be substituted for the Board's Summary of Action dated June 18, 2003. The petitioner has filed an appeal from the action of the Board together with a motion for stay pending action on this request for clarification and/or modification in order to protect its interests. Copies of these pleadings are enclosed. However, we sincerely hope that this matter can be resolved through the clarification/modification process. If you have any questions, please advise. Very truly yours, GROH EGGERS, LLC Kenneters KPE/dal Enclosures cc: Dave Grenier, Triad Engineering w/ encl Stolle Investment, Inc. w/ encl. JUL-03-03 THU 11754 RM 7 MUNICIPALITY OF ANCHORAGE BOARD OF ADJUSTMENT P.03 3. Telephone: c-9 9 -- 4. Relationship to action: _.)L Petitioner Agent of Petitioner. Provide Name and address ofpetitioner Name: Mailing Address Other person adversely affected' -Government agency" - If You ere not the petitioner or hie/her Rmtyou must give not B to the petitioner by certifiedmail at his/her last known address within three days of Cling this Notice of Appeal. NOTICE OF APPEAL TO AN ACTION OF THE PLANNING} AND ZONING COMMISSION OR THE PLATTING B0ARD • FEE -$I60 r" COST BOND - $I00 FOR USE BY CLFJM Acceptance Date: _y3 -d3_ Appear Fee: r07 ? Cost Bond:/() - J Actual Cost t C-) Hearing Date: Decision: A. General Identity of Action being appealed 1. Planning Department file number:���' 2. Name of projector subdivision: Gd n a(,',,ew 'S "b r,yy,'r. i'2 3. Date of Commission or Board action:, �7UH 2 / � A 00 3 B. Appellant's Name and Address 1. Name: ST &r., Vali , e,,7s- ate 2. Mailing Address: /ZV o %UA AUrt Ate 3. Telephone: c-9 9 -- 4. Relationship to action: _.)L Petitioner Agent of Petitioner. Provide Name and address ofpetitioner Name: Mailing Address Other person adversely affected' -Government agency" - If You ere not the petitioner or hie/her Rmtyou must give not B to the petitioner by certifiedmail at his/her last known address within three days of Cling this Notice of Appeal. Notice of Appeal Board of Adjustment OF APPEAL CERTIFICATION An appeal may be considered for three causes, and the causes) must be explained and a reason given for why the appeal should be granted. The causes are: 1. Procedural error 2. Error in application of law. 3. Findings or conclusions that were unsupported by evidence. A written statement of cause and reason for granting the appeal must accompany this notice so that the appeal may be considered. An oral statement may not be used. It is important, then, that a careful and complete statement be made. I (we) hereby cern; fy that I am (we arse) qualified to make this appeal and that my (our) statemen ofa re is true and correct to the best o�my�iur) knowledge. S Te/Ie. T7A VoeST�t Signature: S Pe Ye cz - eapv e Date: O 3 /O 3 aaaaaaaaaaaaaaaaamaaaaaaaaaaaaa_aaaaaaaaaaaaaaeasaaa--aaaaaa�aaaa STATEMENT INSTRUCTIONS An appeal may be considered for the following listed three causes, singly or in combination. Explain the cause and also state what corrective decision is desired by his appeal. 1. Procedural Error. If you allege procedural error, specify those matters which constitute the error and the manner in which the alleged error resulted in prejudice to your interest. 2. Error in Application of Law. if you allege legal error, specify the manner in which principles of law were incorrectly applied. Include reference to any ordinance, statute or other codified law upon which the allegation of legal error is based. 3. Flndinas and Conclusion Unsupported by EvidenceIf you allege that findings or conclusions are not supported by the evidence that was presented, specify and explain those findings or conclusions which lacked evidentiary support at the time of the action. WRITTEN STATEMENT GRANDVIEW SUBDIVISION CASE NO. S-10811-3 JUNE 189 2003 Notice of Appeal of Condition Nos. 9 and 11 to the Platting Board's Action on June 18, 2003. Error in Application of Law. 1. In its action on June 18, 2003, the Board has created the potential for reinstatement of Conditions 9 and I 1 (approved on 12/18/02). These conditions are unconstitutional in that they require the petitioners to give up the constitutional right—the right to receive just compensation when property is taken for public use — in exchange for a discretionary benefit conferred by the government where the benefit sought has little or no relationship to the property. See Dolan v City of7igard 515 US 2.S.374 (1994) and the cases cited therein and similarly decided state and federal cases. The new condition adopted by the Platting Board on June 18, 2003 guarantees a 20 -foot wide pedestrian access easement to Chugach State Park. The possibility that the petitioner will be required to build a road which will require a 60 -foot road easement through its property to Chugach State Park without just compensation is unreasonable especially in light of the fact that parking on this road will not be legal under AMC 21.85.050 and Chugach State Park has no plan for road or parking facilities on the adjacent Park land. 2. The Platting Board has no authority to acquire a right-of-way in the manner in which it seeks to do so in this case. 3. The Platting Board has no authority to place conditions on a plat which changes the configuration of the lots based on conditions subsequent. Findings and Conclusions Unsupported by Evidence. Testimony by the petitioner's representative relating to the extension of Honey Bear Lane as outlined in Condition No. 11 was ignored. It was stated by the petitioner's representative that extension of a Municipal dedicated road to the Chugach State Park was not a reasonable request. A road extension into the Park at this location is not physically possible. Existing site conditions make Condition 11 extremely difficult if not impossible to accomplish. It would terminate at a very steep area in the vicinity of an avalanche zone. A road would never be extended into the park at this location nor would a parking lot be built at this location due to physical conditions. JUL-03-03 THU 11:54- CASH RECEIPT i . Municipality Of Anchorage '— P.O. BOH 19GG ;0 • Anch=98, AK 09519.0050 FINANCE DEPARTMENT Dale Of Payment (MMDDYY) Received from- �r/a.c 07 03 0,3 HernarkS/Address Amount of Payment Payment type .(select only one) Vca FUL�ecK� ` C1 Credit Card I �:...•• ❑Debit Card ❑Other Employee I.D. 90 Coll. Org, E:= Deposit I.D, P.02 • • SAMOUNT FUND ACCOUNT. !ORO :• PROGRAM, CLASS .� SOGT PERIVC ACTIVITY to RES TYPE RES CAT OPENnEN ,.,/ov.::: 7 J� ADO a '- � 0 • 9 iJ (70s •6 y•e� y :. '•: r r I ' a"• • 7777777 • PROJtiCTlGRANT DESCRIPTION �O SOD U Prepared by: 4, Date prepared: 'z ri ' ^ phone no �i-• 47.(716 (Rr C4Ccy OISTRICUTION:'-��"'�`�•— VAft-Tnaaury 001danrod• Dapanment Pi)ik-CVfldnar OMPA •ECo4 0 ' 7 , � 0 • 9 iJ 11! r I ' a"• • 7777777 • PROJtiCTlGRANT DESCRIPTION �O SOD U Prepared by: 4, Date prepared: 'z ri ' ^ phone no �i-• 47.(716 (Rr C4Ccy OISTRICUTION:'-��"'�`�•— VAft-Tnaaury 001danrod• Dapanment Pi)ik-CVfldnar OMPA •ECo4 • JUL-03-03 THU 11:55 AM MUNICIPALITY OF ANCHORAGE BOARD OF ADJUSTMENT REQUEST FOR STAY OF APPEAL OF CASE NO. S-10811-3 To: Municipal Clerk Appellant Stolle Investment, Inc. hereby requests that its appeal of Case No. S-10811-3 filed on July 3, 2003 be stayed pending resolution of its request to the Platting Board for clarification and/or modification of the conditions imposed on remand by the Platting Board on June 18, 2003. If the conditions which are the subject of the appeal are clarified and/or modified to the appellant's satisfaction the appeal will be moot. A stay will ensure that unnecessary costs, fees and expenses to both petitioner and the Municipality of Anchorage are avoided. Petitioner's representatives have received the assurances of Jerry T. Weaver, Jr. Division Administrator Municipality of Anchorage Planning Department that he will work with petitioner's representatives to obtain a clarification and/or modification of the conditions imposed by the Platting Board on remand on June 18, 2003. Respectfully submitted this 3rd day of July, 2003, Stolle Investments. Inc. Joan Its: Secretary/Treasurer tC : u ilu E— inr Eoaa V,06 J P.04 1. Detailed topographical information shall be provided for proposed lots 6, 7, 8, and 9 showing that these lots meet the slope requirements of AMC 15.65, Watewater Disposal Systems. 2. The soils logs of the test holes on this proposed subdivision shall be submitted on an MOA approved form. Seasonal high groundwater monitoring results shall be included. 3. Supporting documentation on water availability must be provided. This documentation shall include an hydrologist's report stating the expected quantities of groundwater available to this subdivision and the effects of the appropriation of water to serve this subdivision on adjoining properties. Municipality of Anchorage Development Services Department 1 Building Safety Division MEMORANDUM DATE: 09/06/01 TO: Jerry T. Weaver, Jr., Platting Officer, CPD FROM: a s Cross, PE, Program Manager, On -Site Water & Wastewater SUBJECT: Updated Comments on Cases The On -Site Water & Wastewater Program has reviewed the following cases and has these comments: S-10764 Villages View Estates West. Prior to approval of this proposed subdivision, the following must be accomplished: 1. For each lot in this proposed subdivision, three wastewater disposal system sites shall be identified on the final plat per AMC 15.65.180.13.2. The areas to be used for wastewater disposal systems must be designated on the plat as being unavailable for use for driveways, parking areas or structures. It is possible that lot lines will have to be moved to accomplish this. 2. An aquifer test shall be conducted within the proposed subdivision. This aquifer test shall include one pumping well and a minimum of two observation wells. The test procedures shall follow those proposed by Terrasat, Inc. in their report entitled "Ground Nater Evaluation for the proposed Villages View Estates Mest" dated June 20, 2001. This aquifier test shall show that there is an adequate water supply to support the proposed subdivision and the effects of the appropriation of water to serve this subdivision on adjoining properties. 3. To develop this property, only wastewater disposal systems that have been approved as nitrogen reducing systems by the MOA shall be installed. A note to this effect shall be placed on the final plat. These systems will be required by code to undergo yearly maintenance and approval. The above requirements should also address the concerns expressed by Mr. Gerald B. Shearer in his letter dated August 28, 2001 regarding this proposed subdivision. S-10811 Grand View Subdivision. Prior to approval of this proposed subdivision, the following must be accomplished: DEC -01-2002 20:31 CTM t V4VIRONMFA-rAL ENCINEEWG • ENEACY COSS ERYATION & ANALYSIS THEODORE F. MOORE. P.E. PH: 007) 345.13SS 14530 ECHO ST. November 26, 2002 ANCHORAGE, ALASKA 99516 James Cross, P.E. On -Site Water & Wastewater Program Manager MOA Dev. Services Dept., Building Safety Division P.O. Box 19-6650 Anchorage, AK 99519 By FAX 343-7997 Re: S-10811 Grandview Subdivision Proposed Plat Dear Mr. Cross: In the course of reviewing a different facet of the proposed subdivision I had an oppommity to take a look at the developer's submittal to your office dated June 6. 2001 regarding soil suitability for construction of on-site wastewater disposal systems. As an engineer who conducts this type of assessment for other similar projects, I was distressed to see several apparent errors and omissions in the engineering study that was submitted for your review. As I understand the intent of 15.65.180 "Subdivision standards for lots to be served by on-site disposal systems", such discrepancies should be corrected prior to issuance of preliminary plat approval. You did call attention to some of these discrepancies in your comments dated 9/6/01, but as far as 1 could tell no further action has been taken by the developer to resolve them. This is of particular concern because the proposed subdivision is . located in an alpine area characterized by steep slopes where the potential for environmental damage is high. The following is a list of the discrepancies I found in the 6/6/01 septic system feasibility study. (1) The test hole location plan does not identify which test holes are which, or their locations relative to any identifiable points. This makes an independent review difficult (2) The contours shown on the test hole location plan do not have sufficient accuracy to identify suitable sites for on-site wastewater disposal systems. While the average slope of this tract is in excess of 25%, the slopes indicated on the logs for individual test holes range from 2% to 15%. The contour mapping provided does not portray these flatter areas. (3) The site plan doesn't show sites for an original and two replacement wastewater disposal systems on each lot, or the reserved area on each lot for on-site wastewater disposal. Thus it is impossible to determine if this platting requirement can be met. (4) None of the test hole logs indicate the presence of bedrock, yet all are quite shallow. Most of the reported depths are in the 12'— 14' range. When the 6' required vertical separation from the bottom of the test hole is subtracted, this means that the bottom of the absorption systems can be no deeper than 6' — 8'. Thus, long trenches will be needed to achieve the necessary sidewall area, thereby increasing the size of the reserve area_ Of the several monitor tuba I recently found, several extend no more than 6 feet below ground level, leading one to question the accuracy of the reported depths. DEC -01-2002 2032 P.02 (5) The engineer reported groundwater levels as being at or near ground surface in most of the monitor tuba when measured on 5/22/01, which would be unacceptable for on-site wastewater disposal. He stated that additional monitoring would be conducted later on to "more accurately" determine groundwater levels, yet there is no evidence of a follow-up report being submitted. (6) The test hole logs were not submitted on a municipal soils log form, as you requested, and they do not bear the stamp of a registered professional engineer. (7) The GF soils classification appearing on several of the tat hole logs is a new one to me, and to the best of my knowledge is not part of the Unified Soil Classification System. (8) The perc test data on each of the soils logs indicates that the water depth at the start of each percolation interval was 12 inches instead of the 6 to 8 inches called for in the dcsign manual. Thus the measured perc rates are not meaningful in terms of design parameters. The urgency for bringing these concerns to your attention is that the Platting Board public hearing on this proposed subdivision is scheduled to take place on Wednesday, December 4. Please give me a call at 345-1355 if you wish to discuss any of the above. Thank you. Sincerely, T.x 9� Ted Moore. P.E. TOTAL P,02 of :j li tr I I i QQ r �4i ___ 4 hill i AN I 111 il'j C L I i ,1 S'• !}i fit \ — !7} ,ii ifi !f I Ar LYYY AS I I tiit r}- �i�, II, ��. _ 1•t � I � 1A�rnru irl 4 \�` \ `• L" ,,. > ' lflf)El.fii f, lij fiat 1 I 4i' �•: (�rD" ;_ / I I ti� •I 1 ' !' �t!E Isl{ ' it I 1 +! I h / la.l Y�Ei.' / .o I iy X171 �� I A o } i fi; �{jl� I�V•i 1 ! Ir} i it 2 I 1 !} ' ?, q 7 1 � , ! (r ,• I�AEt ,•; t i ,r -t I I I r7, I j r I• o f t. L A• li• , ;1 � E: ^ 111 r. � � I yY, YI } � Til iilEEl �ii7E !! Itl 1{1 Il iEl i ' It, • � t� i i , i,Jl,Ei�7 IIS � I y 1 I ,I 1 ♦ y ��.I! 1 '1 7!ItEL.�(i !,: r� 'ii.l CC III - �••T ... '' L___ - - ..ter-.�:+:C _— --- / � til 41t 4 ftl K 7} ,• I sl, � � �I — ..--�._-�M•r-- S+E�i ° lil}I;i'1}jIV �a;Z'!2i j � i..'i.i � j!•; �r'..p � d111.j,E!tf 711 7j 3 �7 i! I , PBZ° FIGURE 1. Detailed topographic map (from Municipality of Anchorage series dated 1979). Avalanche red and blue zones are defused in accordance with d61nitions provided in this report. All powder -blast effects will be included within the red and blue zones. Boundaries of the proposed Grandview Subdivision and lot lines should be added to this 3,09 060 i0660 0.00 MOO