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HomeMy WebLinkAboutGREENBROOK S-11313-1Greenbrook S-11313-1 1 ��� i;'(j1.11ri it II i r i �1 rti7 r i! It.e,1 1� j I tj. It(. 1, (I fl S.1 ;,,'IItjl{Ij1 I J(t4iU .II ,il�ajje �er' 'li` ,t�t�if�if� 1�I I'�+affil{ �1+f1 j 1 ( _ 1 t (t 1 �' '1' > 1 r' g all rA flt'►►_ n 1 ��� i;'(j1.11ri it II i r i �1 rti7 r i! It.e,1 1� j I tj. It(. 1, (I fl S.1 ;,,'IItjl{Ij1 I J(t4iU .II ,il�ajje �er' 'li` ,t�t�if�if� 1�I I'�+affil{ Municipality of Anchorage • i. Development Services Department Building Safety Division MEMORANDUM DATE: December 22, 2004 TO: Jerry Weaver, Jr., Platting Officer, CPD FROM: Daniel Roth, Program Manager, On -Site Water and Wastewater Program SUBJECT: Comments on Cases due December 23, 2004 The On -Site Water & Wastewater Program has reviewed the following cases and has these comments: S11313-1 Greenbrook Subdivision Information to satisfy the requirements specified by AMC 21.15 and AMC 15.65 must be submitted for each lot within this proposed subdivision. This information must include, but may not necessarily be limited to: 1. Soils testing, percolation testing, and ground water monitoring must be conducted to confirm the suitability for development using on-site wastewater disposal systems. 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 must be identified and must meet all criteria specified in AMC 15.65 including slope and slope setback requirements. 3. Topographical information must be submitted. . 4. Proposed lots shall connect to the community water system. S11324-1 Traw Subdivision Information to satisfy the requirements specified by AMC 21.15 and AMC 15.65 must be submitted for each lot within this proposed subdivision. This information must include, but may not necessarily be limited to: 1. Soils testing, percolation testing, and ground water monitoring must be conducted to confirm the suitability for development using on-site wastewater disposal systems. 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 must be identified and must meet all criteria specified in AMC 15.65 including slope and slope setback requirements. 3. Topographical information must be submitted. Comments on Cases due 12/22/2004 Page 2 4. Provide documentation for water availability to serve water wells. S11325-1 Chester H. Lloyd Subdivision No objections, connect both proposed lots to public water & sewer. Please fill In the Information asked for below. -..-._-•---.,__. ,. _..., ,.._._o-,,,,,�,,..��a,�,,,o MWS„yww:wu aeove am mm l P8141011 [Or subdivide a m conformancewith Title 21 of the Anchorage Municipal Code of ortlinences. I understand that payment d the application fee Is nonrefundable and is to cover the costs associated with processing this application, and that it does not assure approval of the Subdivision. I also understand that assigned hearing dates are tentative and may have to be postponed by Planning Department Staff or the Plattir:a Board. Planninn and ]nitron [`.waa,ieei,v, ...*H e- —ii,. o.......:_:_.._...._ Proof of authorization) IseD Legal Liescrlphon: (use aaaftlonat sheet if necessary) 128,12C. 21B & 21C, BLOCK 2, GREENBROOK SUBDIVISION Accepted by. PROPERTY INFORMATION PETITIONER' PETITIONER REPRESENTATIVE If an N (Wa rlbep w,H) Ford, Daelyne Name past rens I.,Y) Lantech, Inc. Mannp A"em Anchorage, AK. 99508 Mwl:ng A"ess 440 West Benson Blvd., Suite 103 Anchorage, Alaska 99503 Contact Phone: Day: 907-274-1888 Night: Contact Phone: Day. 562-5291 Night: Fax: Fax: 561-6626 E-mail: E-mail: mail@lanter-hi.com -..-._-•---.,__. ,. _..., ,.._._o-,,,,,�,,..��a,�,,,o MWS„yww:wu aeove am mm l P8141011 [Or subdivide a m conformancewith Title 21 of the Anchorage Municipal Code of ortlinences. I understand that payment d the application fee Is nonrefundable and is to cover the costs associated with processing this application, and that it does not assure approval of the Subdivision. I also understand that assigned hearing dates are tentative and may have to be postponed by Planning Department Staff or the Plattir:a Board. Planninn and ]nitron [`.waa,ieei,v, ...*H e- —ii,. o.......:_:_.._...._ Proof of authorization) IseD Legal Liescrlphon: (use aaaftlonat sheet if necessary) 128,12C. 21B & 21C, BLOCK 2, GREENBROOK SUBDIVISION Accepted by. PROPERTY INFORMATION Property Tax # 000-000-00-000: 01702382-000, 01702381-000 Site Street Address: ALAGRIN CIR. Current Legal Description (use additional sheet It necessary) LOTS 12A & 21A BLOCK 2, GREENBROOK SUB. Zonin : R6 Acres e: 12.76Grid #: SW2839 # Lots: 2 1# Tracts: NATotai 1 I,arwnv romb,He, n ...., n ,.e... ,..... ..nw...:_r ._ __. #Parcels: 2 -..-._-•---.,__. ,. _..., ,.._._o-,,,,,�,,..��a,�,,,o MWS„yww:wu aeove am mm l P8141011 [Or subdivide a m conformancewith Title 21 of the Anchorage Municipal Code of ortlinences. I understand that payment d the application fee Is nonrefundable and is to cover the costs associated with processing this application, and that it does not assure approval of the Subdivision. I also understand that assigned hearing dates are tentative and may have to be postponed by Planning Department Staff or the Plattir:a Board. Planninn and ]nitron [`.waa,ieei,v, ...*H e- —ii,. o.......:_:_.._...._ Proof of authorization) IseD Legal Liescrlphon: (use aaaftlonat sheet if necessary) 128,12C. 21B & 21C, BLOCK 2, GREENBROOK SUBDIVISION Accepted by. Poster & AfhdawL lee: I, Case Numbor Fii'�•'Y. xia xir•+ r^: r. > 4t �•Zai';-viiitL}.i:r.^Lj�':,^,4J': �.ka:ieli+t V1 ?A it 1F. •A 11 . p , :nj?r. ry Plat conhn 7 ",.,. COMPREHENSIVE PLAN IN OR A ION " Anchorage 2020 Urban/Rural Services: ❑ Urban 0 Rural ENVIRONMENTAL INFORMATION Anchorage 2020 West Anchorage Planning Area: ❑ Inside Outside Fee: Anchorage 2020 Major Urban Elements: Site Is within or abuts: ❑ None ❑ Major Employment Center ❑ Redevelopment/Mixed Use Area ❑ Town Center ❑ Neighborhood Commercial Center ❑ Industrial Center Q None ❑Transit- Supportive Development Corridor ❑ Red Zone Eagle River-Chugiak-Peters Creek Land Use Classification: None ❑ Commercial ❑ Industrial ❑ Parks/Open Space ❑ Public Land Institutions ❑ Marginal land ❑ Alpine/Slope Affected ❑ Special Study ❑'1' ❑ Residential at dwelling units per acre. [3 '3' ❑'4' ❑"5" Girdwood-Tumagain Arm: Waived by ❑ Commercial ❑ Industrial ❑ Parks/Open Space ❑ Public Land Institutions ❑ Marginal land ❑ Alpine/Slope Affected ❑ Special Study ❑ $gbdivisio.n Drainage Plan ❑ Residential at dwelling units per acre. JWaived by- RECENT REGULATORY INFORMATION (Events that have occurred In the last 5 years for all or portion of site) ❑ Rezoning Case Number: ❑PreliminaryPlat ❑ Final Plat Case Number(s): ❑ Conditional Use Case Number(s): ❑ Zoning Variance Case Number(s): ❑ Land Use Enforcement Action for: ❑ Building of Land Use Permit for: ❑ Wetland ❑ Army Corp of Engineers ❑ Munlcipalityof Anchorage POTABLE WATER AND WASTE WATER DISPOSAL Dotable Water provided by: ❑ Public Utility CommuniNwell ❑ Private well Nastewaler disposal method: ❑ Public Utility ❑ Community system 0 Private on-site APPLICATION CHECKLIST ENVIRONMENTAL INFORMATION Fee: Wetlands Classification: ❑ None ❑ "C' O.B. ❑'A' Avalanche Zone: Q None ❑ Blue Zone ❑ Red Zone Floodplain: None ❑ 100 Year ❑ 500 Year Seismic Zone (Harding/Lawson): ❑'1' j]'2" [3 '3' ❑'4' ❑"5" RECENT REGULATORY INFORMATION (Events that have occurred In the last 5 years for all or portion of site) ❑ Rezoning Case Number: ❑PreliminaryPlat ❑ Final Plat Case Number(s): ❑ Conditional Use Case Number(s): ❑ Zoning Variance Case Number(s): ❑ Land Use Enforcement Action for: ❑ Building of Land Use Permit for: ❑ Wetland ❑ Army Corp of Engineers ❑ Munlcipalityof Anchorage POTABLE WATER AND WASTE WATER DISPOSAL Dotable Water provided by: ❑ Public Utility CommuniNwell ❑ Private well Nastewaler disposal method: ❑ Public Utility ❑ Community system 0 Private on-site cYa4ti APPLICATION CHECKLIST Fee: Plat: Copies ❑ 42 (long plats) ❑� 32 (short plats only) 0 B 12'x11" reduced copy Other Maps ❑� Aerial photo 0 Housing stock El Zoning Mandatory on plat depictions: ❑ Pedestrian walkway ❑ Landscaping required byzoning Properly Title: ❑ Certificate to Plat Additional required documents unless specifically waived by Platting Officer: ❑ Site topography(4 copies minimum) Waived by ❑ Soils investigatipn and analysis :,_ .• .: v.:.:.:. :' . Waived by ❑ $gbdivisio.n Drainage Plan a..:;:`,:,:,_::;!. JWaived by- cYa4ti ANDERSON ENGINEERING P.O. BOX 240773 ANCHORAGE, AK 99524 522. August 10, 2004 LanTech,Inc. 440 W. Benson Anchorage, AK 99503 Attention: Craig Bennett x;11313 � � 82004 Subject: Proposed Greenbrook Subdivision, Lots 12B, 12C, 21B and 21C Septic System Feasibility Study Dear Craig: Test holes were placed on Lots 12B and C and Lots 21B and C of the proposed Greenbrook Subdivision between June 24 and June 26, 2004. Test holes were also placed in the area in September of 1993. 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 depths of 20' utilizing a tracked backhoe owned and operated by Acreage Systems 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. The monitoring results are shown on each of the test hole logs furnished with this report. The area of the study was limited to the knoll located at the common junction of all four lots. This area is known from past studies to contain clean sand and gravel to depths of 20'. This material is known to have percolation rates of less than 5 minutes per inch. An existing Class A well and water system, which runs north to south along Algarin Drive in the area of the common north -south lot, line for this proposed subdivision currently serves the subdivision. The exact location of the water line is unknown, but must be determined prior to construction of any septic system to assure the required separation distance of 10' from any component of the system. A total of 12 test holes were placed throughout the 4 lots. Soils encountered were similar in all the holes with the upper 1' composed of organics with some peat and organic silt. This layer was. underlain by poorly graded to well graded gravel with varying degrees of sand and silt. Clean sand with some gravel and minor amounts of silt was found in Test Hole Nos. 6, 7 and 6 on Lots 21B and 21C. The majority of the material was found to be clean and fairly dry. Percolation rates were usually less than 2 minutes per inch on Lots 21 B and 21 C with some siltier areas up to 30 minutes per inch on Lots 12B and 12C. The average rate over the area was approximated at 12 minutes Proposed Greenbrook Subdivision August 10, 2004 Page 2 of 2 per inch. This type of material is excellent for the treatment and disposal of septic effluent. As mentioned earlier, some groundwater was found in the holes, but at depths of at least 14'. Monitoring over the past several years has shown this level does not fluctuate with the seasons. Shallow 5' wide absorption trenches can be placed on these lots at depths, which will provide the necessary separation from the groundwater elevation. Lift stations may be required as the elevation of the absorption trench will almost certainly be higher than the finished floor of the houses to be constructed. 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. Based on our field exploration it appears a minimum of 10,000 square feet of reserve area is required on Lots 21B and 21C. A reserve area of 12,000 square feet is required on Lots 12B and 12C for septic system development. Since the lots will be served by a community water system no wells with their respective 100' protective radii will be required for each lot. Copies of the test hole logs and percolation test along with a Test Hole Location Plan are attached for your review. Sincerely, Michael E. Anderson, P.E. Attachments - 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: LEGAL DESCRIPTION: Lot 12B Greenbrook Subdivision TEST HOLE # Organic 1 Layer - OL 2 4 5 6 7 8 9 13 119 17 E. Silty Sand with Gravel SM 4L A WAS GROUNDWATER ENCOUNTERED? No IF YES, WHAT DEPTH? DEPTH OF WATER None AFTER MONITORING: DATE: 1/6/2004 MAIL L uoERs No. u•m S L 0 P E DATE PERFORMED: 6/14/2004 20% 20% READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 6/24 9:15 8.2S" 1 9:45 30 6" 2.2S" Recharge 9:46 8.13" 2 10:16 30 6" 2.13" Recharge 10:17 8.25" 3 10:47 30 6.12- PERC RATE: 1_ MIN./INCH PERC. HOLE DIAMETER: 6" TEST RUN BETWEEN 6.0 FT. AND 6.5 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: ED SANDERSON I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 8/11/2004 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: LanTech.lnc. DATE PERFORMED: 6/24/2004 LEGAL DESCRIPTION: Lot 12B. Greenbrook Subdivision 2 4 5 6 7 8 9 I& 17 TEST HOLE # 2 SLOPE Organic Layer- OL Silty Gravel with Sand GM BOH -18' WAS GROUNDWATER ENCOUNTERED? IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: W"a Ewan No. a -un ?ROFE No None 7/6/2004 S L P E 2oi 2oi READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 6/24 11:05 8.5" 1 11:35 30 4" 4.5" Recharge 11:36 8.5" 2 12:06 30 4.25" 4.25"' Recharge 12:07 8.25" 3 12:37 30 4" 415" PERC RATE: 7 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: ED SANDERSON I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 8/11/2004 Municipality of Anchorage DEPARTMENT OF HEALTH & HUMAN SERVICES 825 "L" Street, Anchorage, Alaska 99502-0650 SOILS LOG — PERCOLATION TEST Alaska Southern Partners 0...At °so (EN EE '- 491B + T IWCHAEI •!!•ANDERSON •� � 1 �� •. CE -4381 PERFORMED FOR: /{, DATE PERFORN LEGAL DESCRIPTION: -L- a" G?jCG{ d�%K Township Range Section: 2- (FEZ f7- 10 .r' I , Lot 12B C, O e 3- 4 lam,- 6111 Am SM'f I�tfa�16111 fx —1, 2T� �' tIL ;� • : - oma. �bbbc fv v" ' 7 SLOPE s •, 10 + • • WAS GROUND WATER .1 ENCOUNTERED] '• IF YES, AT WHAT 12 ••• • DEPTH] 13 •. 0eptll to Water Mer �V• Monilarinp] 14 �. 1 15 16 /17- 18 • a 19 20 COMMENTS lite. .1i S Y PERCOLATION RATE (minutes/inch) PERC HOLE DIAMETER TEST RUNETWEEN FT AND L FT /111. A Q PERFORMED BY: � I CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: 72-M IRft. 4/951 � I lam,- 6111 Am I�tfa�16111 fx Y PERCOLATION RATE (minutes/inch) PERC HOLE DIAMETER TEST RUNETWEEN FT AND L FT /111. A Q PERFORMED BY: � I CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: 72-M IRft. 4/951 i PERFORMED Municipality of Anchorage DEPARTMENT OF HEALTH & HUMAN SERVICES 825 "L" Street, Anchorage, Alaska 99502-0650 SOILS LOG — PERCOLATION TEST Alaska Southern Partners LEGAL DESCRIPTION:_ f✓ /7. A>% L�7GG—ENC 1 Lot 12B 2 3 •' `►�} 5 •0'.'9 > 6- 7 •� i • t .j. k7 .aK 'O GIek HR�SEALA s� ' :T ! VP �49iyA�rl �* f .•.e. •... ••i• .. . • AUCHAEL !.• ANDERSON . @® CE -4381 ter: DATE PE Township, Range, Section: WAS GROUND WATER ' ENCOUNTERED? IF YES, AT WHAT DEPTH? _ Depth to Water Alter Monitarino7 Date: ®=mmm a PERCOLATION RATE (mmutevinen) PERC HOLE DIAMETER JEST RUN BETWEEN i FT AND �9 FT COMMENTS "ar rf—F"RR-F`ta,Qy°"L� 7�'I PERFORMED BY: „ ^ I CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALLSTATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE DATE 72-008 (Rev. 4/85) u• 9 10 •0• 12 13- 3 14 14 15 6 16- 17 17- 16 18- 19 19 20 k7 .aK 'O GIek HR�SEALA s� ' :T ! VP �49iyA�rl �* f .•.e. •... ••i• .. . • AUCHAEL !.• ANDERSON . @® CE -4381 ter: DATE PE Township, Range, Section: WAS GROUND WATER ' ENCOUNTERED? IF YES, AT WHAT DEPTH? _ Depth to Water Alter Monitarino7 Date: ®=mmm a PERCOLATION RATE (mmutevinen) PERC HOLE DIAMETER JEST RUN BETWEEN i FT AND �9 FT COMMENTS "ar rf—F"RR-F`ta,Qy°"L� 7�'I PERFORMED BY: „ ^ I CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALLSTATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE DATE 72-008 (Rev. 4/85) a PERCOLATION RATE (mmutevinen) PERC HOLE DIAMETER JEST RUN BETWEEN i FT AND �9 FT COMMENTS "ar rf—F"RR-F`ta,Qy°"L� 7�'I PERFORMED BY: „ ^ I CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALLSTATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE DATE 72-008 (Rev. 4/85) 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: LanTech.Inc. DATE PERFORMED: 6/25/2004 LEGAL DESCRIPTION: Lot 12C. Greenbrook Subdivision 3 J 6 7 8 9 17 BOH - TEST HOLE # 3 Organic Layer- OL Silty Gravel with Sand IIfY WAS GROUNDWATER ENCOUNTERED? IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: SLOPE Yes S NET TIME L 16' 0 8:10 P 16' 1 E 7/6/2004 3.75" SITE PLAN 20% 20% READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 6/25 8:10 8.5" 1 8:40 30 3.75" 4.75" Recharge 8:41 8.5" 2 9:11 30 4" 4.5' Recharge 1 9:12 8.25" 3 9:42 30 3.15- PERC RATE: _7 MIN./INCH PERC. HOLE DIAMETER: 6" TEST RUN BETWEEN 6.0 FT. AND 7.0 FT• COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: ED SANDERSON I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 8/11/2004 2 4 5 6 7 8 9 12 17 L•' 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: LanTech.Inc. DATE PERFORMED: 6/25/2004 LEGAL DESCRIPTION: Lot 12C. Greenbrooti Subdivision TEST HOLE # 4 SLOPE SITE PLAN Organic Layer - OL I I /\ Silty Gravel with Sand GM 4 WAS GROUNDWATER ENCOUNTERED? IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: MCM•LL C ENDERS No. a4M1 No Dry 7/6/2004 .S L 0 P E 20% 20% READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 6/25 10:04 B.S" 1 10:14 10 Dry 8.S" Recharge 10:15 8.5" 2 10:25 10 Dry 8.5" Recharge 1 1 10:26 1 1 8.2S" 3 10:36 10 Dry PERC RATE: 1.5 MIN./INCH PERC. HOLE DIAMETER: 6* TEST RLN BETWEEN 6.0 FT. AND 7.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test. TEST PERFORMED BY: ED SANDERSON I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 8/11/2004 ww_ -• • a '`•o•4 NG1N jpq • .� Municipality of Anchorage s' • 4918 y DEPARTMENT OF HEALTH 6 HUMAN SERVICES or 825 "L" Street, Anchorage, Alaska 99502-0650 '••••••• •• T••••-•..... 00 SOILS LOG I m W1CRA£L If. ANDERSON : a — PERCOLATION TEST �I' CE•4381 41 , •• .p r PERFORMED FOR: Alaska Southern Partners 4 'y Nrj "Po •[ • 1 #6 , ry/�'Jr.. DATE PERFORME6 LEGAL DESCRIPTION: I_ �3, f3 jiC-71 riv TOWnshlp, Range, Section: 1 Lot 12C 2- 3- 4 3 4 5 / o IG7�I�j•J M� 6 7 ;t . 8 •% 10 •D • 12 •;= � ,s•,G ML 13 - some, toes 14� 15-- 16 5 -16 17 18 j P 19 p qq 20 COMMENTS tj SLOPE ■■■■■■■■■■ ■■■■■■■■■■ MEN mom MENOMONEE NNUMENERM IN iiiiii PERCOLATION RATE .10 Q ' !ry� (minutes/inch) PERC HOLE DIAMETER rE57T RUN BETWEEN ��.. f 9 FTAND -ft7 FT PERFORMED BY: 74�f I CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALLSTATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE 72-0O8 (Rev. 4/65) ©.�I�rf�dvl��rh�•]�» PERCOLATION RATE .10 Q ' !ry� (minutes/inch) PERC HOLE DIAMETER rE57T RUN BETWEEN ��.. f 9 FTAND -ft7 FT PERFORMED BY: 74�f I CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALLSTATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE 72-0O8 (Rev. 4/65) 2 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 SOILS LOG - PERCOLATION TEST PROJECT #: PERFORMED FOR: LanTech.Inc. DATE PERFORMED: 6/25/2004 LEGAL DESCRIPTION: Lot 21B Greenbrook Subdivision TEST HOLE # 5 SLOPE Organic Layer - OL II Clean Gravel GP/GW WAS GROUNDWATER ENCOUNTERED? IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: Yes 16' 16' 7/6/2004 S L P E 20% 20% READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 6/25 12:02 8.5" 1 12:12 10 Dry 8.5" Recharge 12:13 8.5" 2 12:23 10 Dry 8.5" Recharge 1 1 12:24 1 8.25" 3 12:34 10 Dr PERC RATE: _]r MIN./INCH PERC. HOLE DIAMETER: 6_ TEST RUN BETWEEN6,0 FT. AND 7.0 T. COMMENTS: Test Hole Pre Soaked Prior to Percolation Test TEST PERFORMED BY: ED SANDERSON 1, MICHAEL E. AND ON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 8/11/2004 2 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 SOILS LOG - PERCOLATION TEST PROJECT #: _ PERFORMED FOR: LEGAL DESCRIPTION: Lot 218, Greenbrook Subdivision TEST HOLE # 6 SLUNt Organic Layer- OL 4 IN Black Sand f V SP/SW WAS GROUNDWATER ENCOUNTERED? IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: - 18' Yes 14.5' 14.5' 7/6/2004 S L 0 P E DATE PERFORMED: 6/25/2004 20% 20% READING DATE GROSS TIME NET TIME NET DROP Start 6/25 1:35 1 1:45 10 NWATER 8.5" Rechar a 1:46 2 1:56 10 8.5" Recharge 2:06 3 2:16 10 Dr PERC RATE: 15 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: ED SANDERSON I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 8/11/2004 a ' 4 Munieipallty of Anchorage DEPARTMENT OF HEALTH & HUMAN SERVICES 825 "L" Street, Anchorage, Alaska 99502-0650 SOILS LOG — PERCOLATION TEST Alaska Southern Partners PERFORMED FOR: r�� �� �,,,,y DATE LEGAL DESCRIPTION: L(X �!/ (�fl�Gfif`I�K�t/1� Township, Range, Section: 1 -I i /' 5 o• •o 6 Pee o 7 D O o Cleo 8 0.0 • •O O 000 g Oa O •00 10- 11 12- 13- 14- 2 131a °. ° 0 15 16 17 o e0, °0 0 18 �000.0 o• 19- 20- 9 20 '000 COMMENTS p(, Lot 21B 11 a 1*6 t-73 IBJ k WAS GROUND WATER ENCOUNTERED? IF YES, AT WHAT DEPTH? Depth to Water Atter ! Monitoring? 13 SLOPE 49X-1 AEL e. ANDERSON ; CE -4381 :�� r• SITE PLAN V PERCOLATION RATE I (minutes/inch) PERC HOLE DIAMETER TEST RUN BETWEEN _>3 FTAND 4 FT _ PERFORMED BY: - IT if I CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALLSTATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: 7244 IF.„ AM41 2 L. 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 SOILS LOG - PERCOLATION TEST PROJECT #: PERFORMED FOR: LanTech- Inc. DATE PERFORMED: 6/26/2004 LEGAL DESCRIPTION: Lot 21C. Greenbrook Subdivision TEST HOLE # 7 SLOPE SITE PLAN Organic Layer - OL Clean Sand with Gravel SP/SW WAS GROUNDWATER ENCOUNTERED? IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: r 49th• A Inuit. C uaraSW No. aibl ML Yes 14' 14' 7/6/2004 S L 0 P E 20% 20% READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 6/26 9:10 8.5" 1 9:20 10 Dry 8.5" Recharge 9:21 8.5" 2 9:31 10 Dry 8.5" Recharge 1 1 9:31 1 1 8.25" 3 9:41 10 Dry o7s, PERC RATE: 1.5 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: ED SANDERSON I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 8/11/2004 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: LanTech.Inc. DATE PERFORMED: 6/26/2004 2 4 5 6 7 8 9 17 LEGAL DESCRIPTION: lot 21C. Greenbrook Subdivision TEST HOLE # 8 SLOPE SITE PLAN a.• Organic Layer- OL IN Clean Sand f with Gravel `^ V and Silt SW/SM WAS GROUNDWATER ENCOUNTERED? IF YES, WHAT DEPTH? DEPTH OF WATER AFTER MONITORING: DATE: Yes S NET TIME L 15' 0 11:33 P 1S' 1 E 7/6/2006 Dry 20% 20% READING DATE GROSS TIME NET TIME DEPTH OF WATER NET DROP Start 6/26 11:33 8.5” 1 11:43 10 Dry 8.5" Recharge 11:44 8.5" 2 11:54 10 Dry 8.5" Recharge 1 11:55 1 1 8.2S- 3 12:05 10 Dry PERC RATE: 1.5 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: ED SANDERSON I, MICHAEL E. ANDERSON, CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES ON THIS DATE: 8/11/2004 a ti Munlelpality of Anchorage DEPARTMENT OF HEALTH & HUMAN SERVICES 825'L' Street, Anchorage, Alaska 99502-0650 SOILS LOG — PERCOLATION TEST Alaska Southern Partners PERFORMED FOR: , ,,,, DATE LEGAL DESCRIPTION: (�2' $2FrtK Township, Range, Section: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 16 19 20 u O Lot 21C SLOPE WAS GROUND TER ,' ENCOUNTERE NOMMEEMEN ■■■■■.■■■■ ■■■■■■■■■. IF YES, AT WHAT DEPTH? �! lQ/Z8�93 Depth to Water After ? 1 Monilwing? � 3 Dale: H� AEL t. AND CE•4381 SITE PLAN UPERCOLATION RATE Z1_ Immutevinchl PERC HOLE DIAMETER �, � "TEST RUN BETWEEN FT AND FT COMMENTS a ' w�E7Z. c.gyET2..Qt1IiL.6n Dl1Fi i'D IGf}�ID Pcrzl:.o1,A-7'T'oAJ T1A'1'E' PERFORMED BY: I CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALLSTATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: S `55'06 "W 79.84' -.-.-. Municipality of Anchorage • -.. Development Services Department Building Safety Division s MEMORANDUM DATE: October 11, 2004 TO: Jerry Weaver, Jr., Platting Officer, CPD FRODi:0aniel Roth, Program Manager, On Water and Wastewater Program SUBJECT: Comments on Cases due October 14, 2004 The On -Site Water & Wastewater Program has reviewed the following cases and has these comments: S11310-1 US SurvcyNo.3042, Lot 93A On -Site Water & Wastewater Program has complete records of the water well and the wastewater system serving the home on the proposed subdivision to join three lots into one. No objection S11312-1 Campbell Creek Industrial Park No objection S11313-1 Greenbrook subdivision Information to satisfy the requirements specified in AMC 21.15 and AMC 15.65 shall be submitted for each lot of this proposed subdivision. This information must include, but may not necessarily be limited too: 1. Soils testing, percolation testing and groundwater monitoring shall be conducted to confirm the suitability for development using on-site wastewater disposal systems. Ground water monitoring shall 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 must be identified and must meet all criteria specified in AMC 15.65, including slope and setback requirements. 3. Topographical slope information must be submitted. Please fill in the information asked for below. kwm eweena, M.eunws or .me ever W9w $ M Wppwnw,lal lam. �Wlae w ening. ail b iiia nW"~ers,rey ow" pwceavr,y d eee eypeWeen PROPERTY INFORMATION PETITIONER' PETITIONER REPRESENTATIVE if an Neff! (last nail bL) Ford, Dael ne N. 14.1 nems wsl) Lantech, Inc. Wvvy Ab,ess 3101 Penland Parkway Suite K-30 Anchorage, AK. 99508 Inww,l,v Aeaess 440 West Benson Blvd., Suite 103 Anchorage, Alaska 99503 Contact Phone: Day: 907-274-1888 Night: Contact Phone: Day: 562-5291 Night: Fax: Fax: 561-6626 E-mail: E-mail: mail lantechi.com kwm eweena, M.eunws or .me ever W9w $ M Wppwnw,lal lam. �Wlae w ening. ail b iiia nW"~ers,rey ow" pwceavr,y d eee eypeWeen I nereoy cantly trial (I am) (I nave been autir n ed to act for) owner of the property described above and that 1 petition for sundiwoe a In conformance wlm Me 21 of tha Anchorage Municipal Code of Ordinances. I understand that payment of the application fee Is nonrefundable and is to cover the costs associated with processing this application, and that a does not assure approval of the subdivision. I also undersand that assigned hearing dales are tentative and may have to be postponed by Planning Department Staff or the PLatlinq Board. Mannino and Zoning Commission, or the Assembly for administrative reasons. Date Signature (Ag Is must provide written Proof of authorization) sed Legal Description: (use additional sheet if necessary) 12B, 12C, 21B & 21C, BLOCK 2, GREENBROOK SUBDIVISION Accepted by Poster 6 Affidavit: Fee: Case Number: PROPERTY INFORMATION Property Tax # (000-000-00-000): 01702382-000, 01702381-000 Site Street Address: ALAGRIN CIR. Current Legal Description (use additional sheet it necessary) LOTS 12A & 21A BLOCK 2, GREENBROOK SUB. Zoning: R6 jAcreace: 12.76 Grid #: SW2839 # Lots: 2 J# Tracts: NA ITotal# Parcels: 2 I nereoy cantly trial (I am) (I nave been autir n ed to act for) owner of the property described above and that 1 petition for sundiwoe a In conformance wlm Me 21 of tha Anchorage Municipal Code of Ordinances. I understand that payment of the application fee Is nonrefundable and is to cover the costs associated with processing this application, and that a does not assure approval of the subdivision. I also undersand that assigned hearing dales are tentative and may have to be postponed by Planning Department Staff or the PLatlinq Board. Mannino and Zoning Commission, or the Assembly for administrative reasons. Date Signature (Ag Is must provide written Proof of authorization) sed Legal Description: (use additional sheet if necessary) 12B, 12C, 21B & 21C, BLOCK 2, GREENBROOK SUBDIVISION Accepted by Poster 6 Affidavit: Fee: Case Number: _, o.-. _ .:... Pace 2 COMPREHENSIVE PLAN INFORMATION Anchorage 2020 Urban/Rural Services: ❑ Urban © Rural Anchorage 2020 West Anchorage Planning Area: ❑ Inside © Outside Anchorage 2020 Major Urban Elements: Site is within or abuts: ❑ Major Employment Center ❑ Redevelopment/Mixed Use Area ❑ Town Center ❑ Neighborhood Commercial Center ❑ Industrial Center ❑ Transit - Supportive Development Corridor Eagle River-Chugiak-Peters Creek Land Use Classification: ❑ Commercial ❑ Industrial ❑ Parks/open Space ❑ Public Land Institutions ❑ Marginal land ❑ Alpine/Slope Affected ❑ Special Study ❑ Residential at dwelling units per acre. Girdwood-Turnagain Arm: ❑ Commercial ❑ Industrial ❑ Parks/Open Space ❑ Public Land Institutions ❑ Marginal land ❑ Alpine/Slope Affected ❑ Special Study ❑ Residential at dwelling units per acre. RECENT REGULATORY INFORMATION (Events that have occurred In the last 5 years for all or portion of site) ❑ Rezoning Case Number: ❑ Preliminary Plat ❑ Final Plat Case Number(s): ❑ Conditional Use Case Number(s): ❑ Zoning variance Case Number(s): ❑ Land Use Enforcement Action for: ❑ Building of Land Use Permit for: ❑ Wetland perm it: ❑ Army Corp ofEngineers ❑ Municipality ofAnchorage POTABLE WATER AND WASTE WATER DISPOSAL Potable Water provided by: [3 Public Utility ©Community well J3 Private well Wastewater disposal method: ❑ Public Utility ❑ Community system © Private on-site APPLICATION CHECKLIST ENVIRONMENTAL INFORMATION Plat: Copies ❑ 42 (long plats) © 32 (short plats only) Wetlands Classification: ❑ None ❑ "C" Q "B" ❑ "A" Avalanche Zone: © None ❑ Blue Zone ❑ Red Zone Floodplain: ❑ None ❑ 100 Year ❑ 500 Year Seismic Zone (Harding/Lawson): ❑ "1" 017" ❑ "3" ❑ "4" ❑ "5" RECENT REGULATORY INFORMATION (Events that have occurred In the last 5 years for all or portion of site) ❑ Rezoning Case Number: ❑ Preliminary Plat ❑ Final Plat Case Number(s): ❑ Conditional Use Case Number(s): ❑ Zoning variance Case Number(s): ❑ Land Use Enforcement Action for: ❑ Building of Land Use Permit for: ❑ Wetland perm it: ❑ Army Corp ofEngineers ❑ Municipality ofAnchorage POTABLE WATER AND WASTE WATER DISPOSAL Potable Water provided by: [3 Public Utility ©Community well J3 Private well Wastewater disposal method: ❑ Public Utility ❑ Community system © Private on-site APPLICATION CHECKLIST Fee: Plat: Copies ❑ 42 (long plats) © 32 (short plats only) © 8 1/2"x11"reduced copy Other Maps © Aerial photo 0 Housing stock © Zoning Mandatory on plat depictions: ❑ Pedestrian walkway ❑ Landscaping required by zoning Property Title: ❑ Certificate to Plat Additional required documents unless specifically waived by Platting Officer: ❑ Site topography (4 copies minimum) Waived by ❑ Soils investigation and analysis Waived by ❑ Subdivision Drainage Plan Waived by N � ' \ \ 10 / \ 26 \ ; 1B I . 6 25 / --- oa1.o9• It. a I O ; N M:. Z 1 1 10,000 FT! 1 1 LOT, 21 C 01 N 119,094 sq.ft. 6 N ; 30' 589'49'32"W 259.31 I 7 I I ILi U cr 20 I U I _z II Q I I 19 �Sr 12,000 FT! +a N 8130'47 W LOT 17 17 LOT 12B 153,681 sq.ft. LOT 12C 209,918 sq.ft. 7 0 6 W z w Lu Of 5 0 ' LOT 21 B 5 i 72.997 sq.ft. J 1 1 � J 10.000 FT' Z o I ct 1 O ;� 0 4 i C z :� 1 -O '~ 1 r ' 1 1 LOT, 21 C 01 N 119,094 sq.ft. 6 N ; 30' 589'49'32"W 259.31 I 7 I I ILi U cr 20 I U I _z II Q I I 19 �Sr 12,000 FT! +a N 8130'47 W LOT 17 17 LOT 12B 153,681 sq.ft. LOT 12C 209,918 sq.ft. 7 0 6 W z w Lu Of 5 0 ' 4 \ CEA ESYTS. -►. i� 8K 230 FG 452 \ �� CS A1ER 227.09' 130. 2 % SEPTIC SYSTEM RESERVE AREA I TEST HOLE LOCATION PLAN SCALE 1" = 100'