HomeMy WebLinkAboutPROSPECT HEIGHTS #3 BLK 9 LT 4A GRE , ER ANCHORAGE AREA BO[ ..dGH Depsrtment of Environmental Quality 3330 C Street Anchorage, Alaska gg§03 INSPECTION REPORT ON-SITE SEWAGE DISPOSAL SYSTEM LOCATION SEPTIC TANK: DISTANCE ~ ~ ~,~.,.~. FROM WELL J~J~Jll~ MANUFACTURER ~;:>a~- INSIDE LENGTH INSIDE WIDTH MATERIAL LIQUID DEPTH NUMBER OF COMPARTMENTS '~' /~e.~I LIQU ID CAPACITY ~,~ ~,> GA~ ~ DRAIN FIELD: D,STANCE FROMWELL1 ' OUNDAT,ON NUMBER OF LINES_ J OISTANCE BETWEEN LINES ABSORPTION AREA DEPTH: TOP OF TILE TO FINISH GRADE Sq. FT. DEPTH OF FILTER MATERIAL BENEATH TILE__i 0~)IN. ABOVE TILE (,O IN. WELL: k,tO~'-~ ~"'Jf TYPE CONSTRUCTION DEPTH DISTANCE FROM: BUILDING NEAREST NEAREST SEPTIC SEEPAGE FOUNDATION LOT LINE __, SEWER LINE__ TANK__ SYSTEM CESSPOOL OTHER SOURCES APPROVED DISAPPROVED REMARKS DISTANC~.~,''''''~'~ INSTALLED BY: C~l~k~ S~::lV~J SEWER LINE DEPTH: PIPE MATERIAL: REMARKS: DIAGRAM OF SYSTEM - ' --- I G.'~.A.B. Certified ~Vell Date compietea ................................................... :.--. .............................. 7"== ...... 7"7' Depth of well ............ .1...3.. .......................... ; ....... ....:... ............... :....i=..,_,7.....U7./: ........ . Size of casmg ............. ..6_.: .....I...D. ......................... : .......................... .:: .......................... Distance to water......kk:. ................................................................ 112 ' Distance to water while pumping ............................................................... at rate of ............ .3...6...0.. ....................... gall0ns~ per hoar. :--...'i.., · Descnpuonof Formation .." ~ ' 'I from to ::~- -.. :'::.~ :: .DOTTEN DRILLING..CO, ~' ~ :;:~. ::~::~: ::':~.' :-. :: . :. JohnsRoad : ': .: ::: ', . ' .: [::: :::~ . : :.: iPENARD, ALASKA ::: :: .:::: - .', ' we advise you tO attach this certificate to your deed. . : :I: F:!iii:l;i:'T :I: F:"r' 'T'Hf::I'T ::i.: ]: F:IJ"! [::¢:1["1:!:!....:}:1::1t:;ii i.,.I :I: 'TH THE I:;;:[ii:(i:!l_l:l:F'.!iEt'"lllii:i",!"l"~il; F'OFi: EIi"4-:!ii;:[TE :iii;E:F.IE:I:;;::E; I::INI:::' I.,.l!i~:L.L.:!i; t:::IE; I:::(:)F::'i"H E;"~" "H"IE: Hi...IN:[CII:::'F:IL:I:T"~" OF: 2: :1:t4 :i: L.I... :i: I",!:E;TFII....I... THE: E;h":5"I'F:H :i: N FiC:COFi:I:::'F:Ii",ICE:: I.,.]:1: 'T'H THE: ::ii:: :[ LJNDiii~:I::~::[i;Ti:::IN[.':' "i"HI::IT THE: i:;)N.--'.:_:i;:[TE :E;EHIE:F;: :iii;"r'Z'f'E:H HFI"r' [RE:g!I...i:I:F;i:E: E:NI...I::IF?.[:~iE:Hi:~:NT ]:1:::' THE: !:~:I!E:E::[I:::'E:NCFi!: I:~ii; .L.IE:'E:: I'"tOI':?.E: THF::IN 4 i::t [::'J:::'! .. ]: (:::I::IN"I" (31::lt: MUNICIPALITY OF ANCHORAGE DEPARTMENT OF HEALTH AND ENVIRONMENTAL PFIOTECTION Pouch 6-650, Anchorage, Alaska 99502 276-2221' SOILS LOG - PERCOLATION TEST SOILS LOG [] PERCOLATION TEST .PERFORMED FOR: DATE PERFORMED: LEGAL DESCRIPTION: I"~ZO~F~t~'-zZ7- /~ ~ i~J~z~/ ~1 1 2 3 4 5 6 7 8 9 10 11 8LOPE 13 14 15 16 17 18 19 2O SITE PLAN LOT- ~ ! i T'-i to WAS GROUND WATER S i ~' i i i i I ! 1...-', Gross Net Depth to Net Reading Date Time Time Water Drop PERCOLATION RATE (minute~/inch) TEST RUN BETWEEN FT AND __ FT PERFORMED BY: J~O~J~CC[ ~, ~IZ~ CERTIFIED BY: ~OEg~4-~eg~ d DATE:~/E 72-008 (7/76) THE.: . J:::'U '3TH E:, :!: h!E:h1E: :[ ON :i: ~: THE: t .F?.ff3TH ( ): N F'E:E? ::, 7 F: THE: "FF~:E:I'.,IC:H O1~: "i'H~ [::,E;:F:"FH OF:' F:I TFZ:E:NE:H Cll:~: I:::'ZT :~Z TH~: ~::,:[ZTFINC:E: E',E:THEE:h] 'T'HI~: 'ZUI:~:F:'Fff:::E: Eft= THE: '3[;'hi NF:, I::ff-,l[::, THE: E',OTTOI"I OF' "I"H[~: ~:::.,.%.....-, ~ J .J. Cq",J r:[N "i'Hia: 'i"i:~:(~:!'.,!l::::l-t I.,J ]: I:::,"t"H F:'Oi:;;: !:::,i;~:l:::l 71: I'.,!F:' ]: I~:I...I:::,Z :i: Z :~: .... , ..... ~ , ,- ... E',E'f'HI~::E:N THEE OU"I"F:'I::~L..I~.. ']'Id[F: ,.~F.H,,: .... [::,E:F'TH :[:~ "i'HZ h'l:[N:[hlL.ih'i I:::,EFh['H OF::. '" ........ I=lb4[::, 'T'HE: [~',O'T"i'Cff'I 0i::' 'T'HI~: E:::.:;I:: FI',,,'FFI' T ON ,:: :t: ¢.,~'.. MUNICIPALITY OF ANCHORAGE DEPARTMENT OF HEALTH AND ENVlRONMEN-rAL PROTECTION Pouch 6-650, Anchorage, Alaska 99502 276-222~ SOILS LOG -- PERCOLATION TEST [] SOILS LOG PERCOt. ATION TEST PERFORMED FOR:_ DATE PERFORMED:. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 SITE PLAN ~ ~ ~> 0 I / // ~ i ] J_...J! ENCOUNTERED? -- .Y/~-.5 ' 0 IF YES, AT WHAT Gross Net Depth to Net Reading Date Time Time Water Drop PERCOLATION RATE (minutes/inch} TEST RUN BETWEEN -- ~ FT AND ,. FT CERTIFIED 8Y L~O.~?"L',~,I('?-~2~'rC''/ /¢¢ 77, #1: Time Date Insp ~MUNICIPALITY OF ANCHORAGE~ DEP~RI'ME. OF HEALTH AND ENVIRONMEN'~ "PROTECTION 825 L Street, Anchoraa~. AlasKa 99501 264-4720 2:30 p.m. 3-3-78 Friday ~2 ~':~!~! Time Date Date Received: February 23, 1978 Time Date Pratt Insp Insp REQUEST FOR APPROVAL OF INDIVIDUAL SEWER AND WATER FACILITIES 1. Lending Institution Request: National Bank of Alaska Mailing Address: Pouch 7-025 99510 Phone: 265-2883 2. Property Owner: Gary Stromberg Mailing Address: Star Route A Box 64-A 99507 Phone: 344-8191 3. Legal Description: Lot 3 Block 9 Prospect Heights ~3 4: Single Family Residence: (x) Number of Bedrooms: Four Multiple Family Residence: ( ) Number of Bedrooms: Well System: Permit ~ Individual well (x) Community/Public System ( ) Depth of Well 150' Well Log on File ( ) Construction Bacterial Analysis 6. Sewage Disposal System: Permit # Septic Tank Size Absorption Area 7. Distances: Well to Septic Ta to Sewer Line On-site System (x) Public Utility ) Installed 1977 Installer _.-~-~ ~--(~© Manufacturer Soils Rate /~ ~3j~ Material ~m~ to Absorption Are~~ Nearest Lot line Absorption Area to Nearest Lot Line Page T~o o Department of Health and Environmental Protection Request for Approval of Individual Sewer and Water Facilities Legal Description: Lot 3 Block 9 Prospect Heights Subdivision ~3 Comments: Affadavit Attached: Approved: ~'/~~. Disapprove_ Letter Attached: ( Date: ~- ~"-~?' Department Worksheet (~p~ ~o ~as) --O]OIhO~d 39V~]AO~ 3~NVU~SNI O~l O08g m~od Sd .................................... '0N 31¥0 BO Ol (a~elsod snld) ~Og--91Vl~l 1331JI/B30 ~]OJ £d1303B P MUNICIPALITY OF ANCHORAGE ~/U Department of Health and Environmental Pr°tecti°n 825 L Street, Anchorage, Alaska 99501 264-4720 ' . ~ est for Approval of Individual Sewer and Water Facilities~ Property Owner: Mailing Address: 2. Name of Buyer: Mailing Address Phone: Phone: Lending Institution: ;~a~,'o~( ~%C ~{ A~k~ Mailing Address: Phone: 4. Realtor/Agent: Mailing Address: 5. Legal Description: Street Location: Phone: Single Family Residence: Multiple Family Residence: Al~t~,- .Dr, (/Number of Bedrooms: ( ) Number of Bedrooms: 8. Sewage Disposal System: *~n-site System (~ Public System If On-site System, date of installation: ~3-~ ~ Water Supply:.. *Individual Well (~ Public/Community System ( ) If Individual Well~ well depth ~fr~.l~O~ If Community System, name of system ( ) *NOTE: A well log is required on ALL wells drilled since 6/75. ** If on-site sewer system is over two(2) years old, an adequacy .test is required by this department. A fee of $25.00 must accompany each request before processing can be initiated. 3/77 MUNICIPALITY OF ANCHORAGE DEPARTMENT OF HEALTH & ENVIRONMENTAL PROTECTION ENVIRONMENTAL HEALTH CASE REVIEW WORK SHEET [] PLATTING BOARD ×~ PLANNING & ZONING CASE NUMBER NAME S-5198 Lot 3A Prospect tleights Subdivision ~3 June 19, 1979 COMMENT TO PLANNING BY July 5, 1979 FOR MEETING OF CASE OF [~ PUBLIC WATER NOT AVAILABLE TO PETITION AREA [~}~UBLIC SEWER NOT AVAILABLE TO PETITION AREA REVlEWER'S COMMENTS: 71-014 (Rev. 2/78) 4040 "B" STREET, ANCHORAGE, ALASKA 09503 PHONE: 007-270-2581 March 29, 1976 W.O. 8956 Grid 2441 S.J.L. Land & Oil Ventures c/o DOWL Engineers 4040 B Street Anchorage, AK 995'03 Attention: Mr. Maurice P. Oswald Subject: Subsurface Investigation, Prospect Heights Addition No. 3, Located within the NE 1/4, Sec. 13, .Township 12 N, Range 3 W, Seward · Meridian, Alaska Gentlemen: In accordance with your instructions, a subsurface investiga- tion was performed on January 27 through Januarv 29., 1976 for the Prospect Heights Subdivision Addition #~. The results of this investigation, which are transmitted herein, include the following: Vicinity Map Test Hole Location Sketch Idealized Soil Profiles Grain Size Distribution Curves Test Holes Logs Explanatory Information Test Hole Logs (By Others) Figure~l Figure 2 Figures 3-5 Sheets 1-3 Table A Appendix A Appendix B CONC'LUSIONS 1) Based on our experience, we believe individual on-site wastewater disposal systems are feasible for this site. 2) Since all lots in this project will be larger than 1-1/4 acres, the limiting percolation rates presently required by the Anchorage ~unicipality Department of Environmental Quality are: less than 30 minutes/inch if septic tanks are to be used; less than 60 minutes/inch if p~]ckage treatment plants a're to be used. $.J.L. Land & Oil Ventures March 29, 1976 Page Two Judging from the test hole logs, we believe percolation rates, as determined by our current testing methods will probably be: Less than 30 minutes/inch for~ test holes 1, 3, 4, 5, and 6; Less than 60 minutes/inch for test hole 2 and probably even less than 30 minutes/inch for test hole 2. 3) Septic tanks and drain fields will probably be adequate for all lots in the subdivisionf though, (depending on results of percolation tests performed on individual lots after roads are constructed), package treatment plants may be required for a few lots in the area of Test Hole 2. DISCUSSION The exploration was conducted using a "Mobile Drill" model B-50 drill rig mounted on a Flextzac-Nodweil tracked vehicle. The rig was equipped with a continuous flight solid stem auger. This equipment is owned and operated by Denali Drilling Inc. Mr. O.M. Hatch, geologist with Alaska T~stlab, supervised the drilling and logged test holes 3, 4, and 5. For test holes 1, 2, and 6, supervision and logging was done by Mr. Wallace Oliver, staff technician with Alaska Testlab. The approximate location of the test holes is shown on Figure 2. Table A is the logs Of these test holes. As samples were recovered, they were sealed in plastic bags to protect the samples and retain the natural moisture prior %o being transported to the laboratory. In the laboratory the samples were visually classified and the moisture content and dry strength determined. For easy reference s~mples of similar color, texture, and particle size distribution were given an arbitrary group designation. Additional laboratory analyses for grsin size distribution were performed on a composite sample of each significant group. The compostion of individual samples can vary somewhat from that of the group as a whole. Three general soil -types were encountered and are listed below by their group designation for r6fercnce to test .holes. S.J.L. Land & Oil Ventures March 29, 1976 Page Three Group A is a brown gravelly sand'with a trace of silt and also includes some brown silty gravelly sand. Frost susceptibility is slightto moderate with frost classification ranging from NFS to F-2. Unified classification is SP to SP/SM. This group was typically poorly graded, 'damp to saturated, had a medium to high density and was composed of subrounded particles. Although mechanical analysis of the composite Group A sample showed 13.5% fines (-#200), it is the writer's opinion that Rome of these samples were cleaner in their natural state and were mixed during Group B is a brown silty gravelly sand. It is moderately frost susceptible rated F-2. Uhified classification is SP/SM to SM. This group was typcially poorly graded, damp to wet, had medium to high density, and was composed of subrounded particles. Although the'grain size distribution curves for Groups A and B are very similar, Group B was visually much siltier than Group A. Group C is a very silty gravelly sand.. Individual samples within this group include silty gravelly sands, (SM); gravelly s~ndy silts, (SM); and possibly sandy silts, (ML). However, frost classification ranges from F-2 to F-4. Particular attention should be called to the soil'description in the test hole logs when they make mention of cobbles and boulders because these larger particles are not recovered by the auger and are detected by indirect means (drilling action) [ Thus, samples sent to the laboratory do not include any cobbles and boulders. In sandy gravel and gravelly sand soils~ some of the larger gravel particles occasionally roll from the auger flights. "Grab" samples of these soils some- -times contain more sand and less gravel than actually exist in place. Referring to the logs of test holes 3 and 6, the silty sandy gravel (GM), materials encountered in the field were classified as a silty gravelly sand (SM) in the labora- tory, but may be closer to a silty sandy gravel in the natural state. Additionally, there may be some contamination of samples. When a granular NFS. soil is overlain by silty materials, some of 'the siltier soil may be scraped from the wall of ~he test hole as the auger is raised. This.can cause the laboratory sample to have a higher fines (-[t200) content that actually exists in the field. For example, test hole #5 of this 'project shows an NFS gravelly sand (SP) soil existing in the S.J.L. Land & Oil Ventures March 29, 1976 Page Four field at the 12'-15' depth. However, the samples recovered from the 12.5' and 15' depths in test hole #5 were classified in the laboratory as a silty gravelly sand with a frost classification of F-2 and unified classification of SP/SM. This is probably due to contamination of the sample. For aid in interpretting the test hole logs, explanatory informa- tion is contained in Appendix A of this report. The soil gradations shown on the attached grain size distri- bution curve are for composite disturbed samples and do not reflect stratification which causes the soils to be more-or- less sorted in the field. Water levels were measured during drilling and approximately one week after drilling. The water levels given should be used with caution as the water level may ~end to fluctuate with percipitation and runoff as well as seasonally. Unseasonably warm weather during exploration, causing snowmelt, may have affected some of the water levels. Due to steep topography of -the project site, percolation tests were not performed, but a 3/4 inch, perforated PVC pipe casing was left in each hole to facilitate future percolation tests. Except at the test hole locations, the idealized soil .profiles (Fig. 3-Fig. 5) are only estimated. Wide variations between the soil profiles shown, and actual field conditions may and, in fact, probably do exist. Two of the test holes used for the profiles were dug and logged by others. Records of these holes were obtained from the Municipality of Anchorage Department of Environmental Quality. We trust the foregoing is sufficient and meets your present needs. Should questions arise or if we can be of further service, please feel free to contact us. APPROVED: Very truly yours, ALASKA TESTLAB R. Mark Hansen RMH:HRL:mm -~ Test Holes by A.T.L. [] Test' Holes by Others I ,, / J TEST HOLE LOCAT'~ONSI<.EI! Cia SCALE 1"=400' S~I3H.LO ),Et 8 -'H '£ Z OLU O0 n 0 -'_z W -J 0 o') > SU3H£O A~ 6-'H '1 NLI 0 __1 -oo t~ 0 =-.z g - 'M 9-'H'~ ~ o o ~ o 3 ° ° ° o o 0 0 Test Hole #1 Table A WO #8956 Date: 1-..27-76 Depth in Feet From To 0.0' - 0.8' 0.8' -' 10.0' 10.0' - 11.0' Soil Description Peat and Roots F-2, slightly Silty-Gravell~ Sand, SP/SM brown, poorly graded, damp, subrounded particles to 2" Boulders from 5.0' to ' F-2, Silty Gravelly Sand, SM, brow~ poorly graded, saturated, subrounded particles to Bottom of Test Hole: Frost Line: Free Water Level: 11.0' 10.0' while drilling 8.2' after one week Sample Depth 1 5.0' 2 10.0' Type of Dry Blows/6" M% Sample Strength Group Unified -- 5.8 Grab- N A SP/SM -- Sat. Grab -- B SM Remarks: Type of Sample, G=Grab, SP = Standard Penetration. Dry Strength, N=None, L=Low, M=Medium, H=High. Group refers to similar material, this study only. Test Hole #2 Depth in Feet .From To 0.0' - 1.0' 1.0' - . 5.0' 5.0' - 10.0' 10.0' - 15.0' Bottom of Test Hole: Frost Line: Free Water Level: Sample Depth 1 5.0' 2 10.0' 3 15.0' Table A WO #8956 Date: 1-27-76 Soil Description Peat and Roots F-2, Silty Gravelly Sand, SM, brown, poorly graded, occasional cobbles and boulders, damp.' F-4, Gravelly Sandy Silt, ML~ brown, damp, subrounded particles to 2". F-4, G_~ave%..~ Silt, ML, brown, damp, sub- rounded particles to 3" 15.0' 3.0' None observed during drilling 14.5' after one week Blows/6" M% Type of Dry Sample Strength Group Unified -- 10.5 Grab - N B SM -- 8.2 Grab N B SM -- 9.2 Grab- L-N C ML Remarks:. 1. 2. 3. Type of Sample, G=Grab, SP = Standard Penetration. Dry Strength, N=None, L=Low, M=Medium, H=High. Group refers to similar material, this study only. Test Hole #3 Depth in Feet From To 0.0' - 2.0' 2.0' - 4.0' 4.0' - 8.0' 8.0' - 20.0' Table A WO #8956 Date: 1-28-76 Soil Description F--4, S~3_.n_d_~ _S~.il.~ with trace gravel, ML, brown, damp, stiff, F-l, Silty Sandy Gravel, GM, brown, damp, medium to high density, subrounded particles to 3". F-2, very Silty Gravelly Sand, SM, brown, poorly graded, medium density, subrounded particles to 2" Silt content is 35%± at 5.0' and 15-20% at 7.5'. F-2, Silty ~qvelly Sand, SM, brown, poorly graded, damp, medium density, subrounded particles to 2". Silt content is 15-20% at 10.0', 25%± at 12.5', 15%± at 13.0', 15.0' and 20.0' Bottom of Test Hole: Frost Line: Free Water Level: 20.0' 4.0' None Observed ~amplq 1 5.0 2 7.5 '3 10.0 4 12.5 5 15.0 6 20.0 Remarks: Depth Type_of Dry Blows/6" M% Sample Strengt~ Grou~ -- 9.0 Grab N B --- 8.6 Grab N B -- 8.2 Grab N B --- 7.9 Grab N C --- 7.6 Grab N A -- 8.7 Grab N A Unified SM SM SM SM SP/SM SP/SM Type of Sample, G=Grab, SP = Standard Penetration. Dry Strength, N=None, L=Low, M=Medium, H=High. Group refers to similar material, this study only. Test Hole #4 Depth in Feet From To 0.0' - 1.5', 1,5' - 3.0' 3.0' - 8.0' 8.0' - 11.0' 11.0' - 13.0' 13.0' - 20.0' Table A WO #8956 Date: 1-28-76 Soil Description Peat, Pt, brown, damp, soft. F-4, Sand~ ~ilt, ML, brown, damp, stiff, NP. F-2, Silty Grave~.~ Sand, SM, brown, poorly graded, damp, medium density, subrounded particles to 3". .Silt content 20%+ at 5.0' 15%± at 7.5' (more gravel). F-2, very Silty Gravelly Sand, SM, brown, poorly grazed, damp, medium density, sub- rounded particles to 1'". ' Silt content 35%±. F-2, Silty Gravelly Sand, SM, brown, poorly grade~]~, medium density, subrounded particles to 2" Silt content 20%±. F-2, very Silty slightly Gravelly Sand, SM, poorly graded, damp, medium density, sub- rounded particles to 1" Silt content 40%± at 15.0', 20%± at 17.0' to 20.0' Bottom of Test Hole: Frost Line: Free Water Level: 20.0' 3.5' None Observed Sample 1 2 3 4 5 6 Remarks: Type of Dry Depth Blows/6" M% ~ample Str___e~.gt~h_ Grou__p unified 5.0' -- 9.0 Grab N A SM 7.5' -- 8.1 Grab N C SM 10.0' -.- 9.8 Grab N C SM 12.5' -- 8.0 Grab N C SM 15.0' -- 10.5 Grab N ~C SM 20.0' -- 9.4 Grab N B SM Type of Sample, G=Grab, SP = Standard Pene-tration. Drv Strength, N-~None, L=Low, 'M=Medium, H=Iligh- Test Hole #5 Depth in Feet FrOm To 0.0' - 1.5' 1.5' - 3.0' 3.0' - 6.0' 6.0' - 8.0' 8.0' - 12.0' 12.0' - 15.0' Bottom of Test Hole: Frost Line: Free Water Level: Sample. Depth 1 5.0' 2 7.5' 3 10.0' 4 12.5' 5 15.0' Remarks: 1. 2. 3. Table A. WO #8956 Date~ 1-28-76 Soil Description Peat, Pt, brown, damp, soft. F-4, Sa~_~!~_ Silt, ML, brown, damp, stiff, NP. F-4, Gravelly Sandy Silt, ML, brown, damp, stiff, NP. F-2, Silty Gravelly Sand, SM, brown, wet, medium density, subrounded particles to 2", probably wet from snowmelt. NFS/F-2, slightly Silty very Gravelly Sand, SP/SM, brown, poorly graded, damp, medium density, subrounded particles to 2" NFS, slightly Gravelly Sand with trace silt, SP, brown, poorly grade~, damp to saturated, medium to high density, subrounded particles to 1" Gravel not recovered in Sample %4. 15.0' 3.0' Saturated at 14.0' during drilling Blows/6" M% -- 16.9 -- 13.7 -- 7.9 -- Sat. Type of Dry Sample Strength Group Unified Grab L-M C ML Grab L-M C SM/ML Grab N A~ SP/SM Grab N A .SP/SM Grab -- A SP/SM Type of Sample, G=Grab, SP = Standard Penetration. Dry Strength, N=None, L=LoW, M=Medium, It=High. Group refers to similar m&terial, this study on].y. Test Hole #6 Depth, in Feet_ -From To 0,0' - 1.0' 1.0' - -7.5' 7.5' - 20.0' Bottom of Test Hole: Frost Line: Free Water Level: Sample Depth 1 5.0 2 7.5 3 10.0 4 12.5 5 15.0 6 20.0 Table A WO #8956 Date: 1-29-76 Soil Description Peat, Pt, brown, damp, soft. F-l, slightly Silty Sandy Gravel, GP/GM, brown, poorly graded, occa~'~ cobbles, damp, medium density, subrounded particles. NFS, Gravellz Sand, SP, brown, poorly graded, fine sand, damp, medium density, subrounded particles to 1" 20.0' 3.0' 17.5' during drilling 15.2' after one week Saturated at 17.5' Type of Dry Blows/6" M% Sample Strength Group -- 4.7 Grab N A -- 5.2 Grab - N A -- 4.0 Grab N A -- 3.8 Grab- N A -- 4.0 Grab N A -- Sat. Grab -- B Unified SP/SM SP/SM SP/SM SP/SM S /SM SM Remarks: 1. 2. 3. Type of Sample, G=Grab, SP = Sta·ndard Penetration. Dry Strength, N=None, L=Low, M=Medium; H=High. Group refers to similar material, this study only. APPENDIX A Test Hole Log - Description Guide The soil descriptions shoxw~ on tbe lees are the best estimate of thc soil's =*aracteristics at tbe time of field examination and as such do not achieve the ~'cision of a laboratory testing procedm'e. If the log includes soils samples, tnbse samples receive an indcpcndeut textural classification in the laboratory to verify the field examination. The logs often include the following items: Dpptb Interval - usually shown to 0.1 foot, w/thin that zone no significant change in soil type was observed through drill action, dh'cot observation or sampling. Frost Classification NFS, FI, F2, F3, F4, see "Soil Classification Chart" Texttzre of Soil An engineering classification of the soils by particle size and proportion, see "Soil Classification Chart", note the proportions are approximate and modifications to the soil group due to stratifica.tion, inclusions and changes iii properties are included. M6isture Coutent - thls is a qualitative measure: .dry', no or little apparent surface moisture, damp, moisture forms portion of color, less tbgn plastic limit, wet, no free water, often soft, if cohesive soil, saturated, free water may be squeezed out, ifa free draining soil; di!ateut at natural moisture content, if a non-plastic silt or fine sand. (Tbe moisture content is further definedby reference to PI, · Lw, NP, M%ord atency) Density - refers to more-or-less non-cohesive soils, such as sand gravel mixtures with or without a fine fi'action, derived from drilling action and/or sample data; usually described as: very loose, loose, medium dense, very dense. Geueral intent is to portray eartb~vork characteristics. Stiffness -- refers to more ordess cohesive soils and fine grained silts of the clay-silt groups. Derived fi'om drill action and/or sample data. Very soft, soft, stiff, very stiff and bard are commonly used terms. Particle size - The largest particle recovered by the split spoon, is 1-3/8", Shelby tube 3", auger flights (minute-man) 2", Auger flights (B-50 hollow stem) 6"-8". Larger particles are described indirectly by action of the drilling and are referred to as cobbies, 3" to 8", or boulders 8"+. Therefore when reviewiug the gradation sheets, if any, the description on the bole log must be considered for an indication of larger particles. Unified Soil Classification - This is a two letter code. See Unified Classification sheet for ftzrtber definition. In some cases AASHO and/or FAA soil classificatious may be shown as well as the unified. Atterbcrg Limits useful for fine grained and other plastic soils. P1; natural moisture content bclieved to be less than plastic limit PI+; natural moisture contour believed to b'e between plastic and liquid l-~mit s Lw+; natural moisture content believed to be greater than liquid limit N~P; non-plastic, useful as a modifying description of some silt), materials. I)ilatenc~ -- is the ability of water to migrate to tim surfitce of a saturaled or nearly saturated soil sample wlle~{ vibrated or johed - used as all aid to determine if a fine grained soil is a slightly or nou-plastic silt or a volcanic ash. Rock flour -- finely ground soil that is not plastic but otherwise appears similar to a clayey silt. Organic Content -- usually described as Peat, PT, sometimes includes discrete particles such as wood, coal, etc, as a modifier to an inorganic soil. Quantity described as; trace, or all estimate of volume, or, in ease of all organic, as Peat. This may include tundra, muskeg and bog material. Muck - a inodifier used to describe very sot;, semi-organic deposits usually occuring below a peat deposit. Amorpbus peat - organic 'partic]~s nearly or fully disintegrated. Fibrous Peat organic particles more-or-[ess iutact. Bottom of Testbole includes last sample intervah Frost Line seasonal frost depth as described by drilling action and/or samples at the time of drilling. Frozen Ground other than frost line, described by samples, usually includes description of ice content, ofieu will include modified Unified Classification for frozen soils - this is a special case related to permafrost studies. Free Water· Level The free water level noted during drilling. This is not necessarily the static water table at the time of drilling or at other seasons. Static water table determination in othe~ than very permeable soils requires observation xvells or piezometer installations, used only in special cases. Blow/6" - The number of blows of a 140 weight 'free falling 30" to advance a 2" sl)lit spoon 6"; the number of blows for a 12" advance is, by definition, the standard penetratiou. ,d°,,,5 - natural moistl~re content of the soil sample, usually no~. p~rfomled ou clean sands or gravels below the water table. Type of Sample - SP, refers to 2" split spoon driven into tbe soil by 140 p. ound weight, a disturbed sample, ~, thin wall tube, "Shelby" used to obtaiu undisturbed samples of fine grained soil, ..G., "grab" disturbed sample fi'om auger flights or wall oftreucb, _.C, cut sample, undistm-bed sample from wall of trench. Dry Streugtb - a useful indicator of a soil's clayey frae}ion, N=None, L=Low, M=Mcdium, H=Higb Group - The samples are placed into apparently similar groups based OO color and texture alld are arbitrarily assigned a group letter. Further disturbed-tests including Attcrbcrg Limits, gram size, moistme-dcnsity relationslfip, cti:. may be performed on the group and ;ire asgulucd to reflect the general tlistrubed characteristics of thc soils assigned to the group. This is an bnportant phase of thc soil analysis and is used to standarxlizc the variotls qualitative detcrlllhlatiIIlIs alld to ledtlce tile Ilunlbcr of quautitative tests ueccssary to describe tb~ soil mass. SOIL CLASSiFiCATION CHART 30% GRAVEL /,, ~ CLAY CLAYEY CLAYEY \ OR CLAYEY CLAYEY OR SI LTY SI LTY SILTY % SILTY SAND GRAVEL .GRAVELLY SAND SANDY GRAVEL SAND GRAVELLY SAND . SANDY GRAVEL GRAVEL \ \ 0 10 ' 20 30 ' 40 50 60 70 80 90 100 GRAVEL (+#4 SCREEN) % BY WEIGHT NONFROST SUSCEPTIBLE SOILS ARE INORGANIC SOILS CONTAINING LESS THAN 3% FINER THAN 0.02 mm. GROUPS OF FROST-SUSCEPTIBLE SOILS: F1 GRAVELLY SOILS CONTAINING BETWEEN 3 AND 20% FINER THAN 0.02 mm. F2 SANDY SOILS CONTAINING BETWEEN 3 AND 15% FINER THAN 0.02 mm. F3 a. GRAVELLY SOILS CONTAINING MORETHA,N 20% FINER THAN 0.02 mm. AND SANDY SOILS . . (EXCEPT FINE SILTY, SANDS) CONTAINING MORE THAN 15% FINER THAN 0.02 mm. b. CLAYS WITH PLASTICITY INDEXES OF MORE TI-lAN 12. EXCEPT VARVED CLAYS. F4 a, ALL SILTS INCLUDING SANDY SILTS. b, FINE SILTY SANDS CONTAINING MORE THAN 15% FINER THAN 0.02 mm. c, LEAN CLAYS WITH PLASTICITY INDEXES OF LESS THAN 12. d. VARVED CLAYS. Engineers EF"IGh'f' ERING & GEOLOGIC>::"'": CONSULTANTS 22g EAST 51st. AVE. - P.O. BOX 6087 T ANCHOE~AGE. A'LASKA 9§503 TELEPHONE D07-27D-0483 TELEX 000-35419 Geolo#ists Land Surveyors J,-'~ES W. ROONEY, P, E. LCOLM A. MENZIES, P.E., L.S, 'lES H. WE LLMAe. I, P.E. July 26, 1973 RECE~ rED R & M ProjeCt No. 36639 RALPH R. MIGLIACCIO Engineer ng Goologlsf. Kincaid & Son Construction 7801 Jodphurst Anchorage, AK 99502 Re: Test Hole and Soil Log Report for Sanitary System Lot 14, Block 2, Prospect Heights Subdivision .. Dear Mr. Kincaid: We are submitting hereQith the test boring results and our co~nents regarding soil conditions encountered at the subject site. This investigation was performed in accordance with your request of July 26, 1973, and those procedures outlined J.n a letter dated Septe]~er 13, 1971 by Mr. Roll Strickland of the Greater Anchorage Area ~orough DePartment of Environ- mental Quality. A single test hole was put down within the Lot 14 area for the purpose of defining general subsurface .soil conditions for the proposed sanitary system. Excavation was accomplished with a tractor-mounted backhoe and the test hole was extended to a total depth of 14,5 feet below ground surface. The final log prepared for the test hole has been included in Drawing A-01. Ground water was not encountered in the test hole. We appreciate being given this opportunity to be of service to you. Should you have any questions with regard to the above, please do not hesitate to contact us. Very truly yours, R & ld ENGINEERING & G. EOLO'GICAL CONSULTANTS 'a:aes W. Rooney . JWR: ph / xc: GAAB v/ T.H.- I 7 -26-73 Note : Test hole excavaled SANDY SILT, WITH SOME SAND AND GRAVEL TRACE ORGANICS GRAVELLY SAND WITH TRACE TO SOME SILT AND COBBLES (SP; GM) 0.0~ No Waler Table with traclor mounled Engineering ~ Geo.logical ~o, nsultant~ ANC~'IOr~.AO~ ~AIF~BANK ~1 ALAa~:A JUNEAU 14,5' T. O, backhoe. KincaJd And Son Construction LOGS OF TEST BORINGS Anchorage. Alaska GREATER· ANCHORAGE AREA BOROUGH DEPARTrClENT OF ENVIRONMENTAL QUALITY 3330 "C" STREET ANCHORAGE, ALASKA 99503 TELEPHONE 274-4561 PERMIT NO, SEWAGE DISPOSAL SYSTEM -- APPLICATION AND 'Pr. RMIT NAr~ OF APPLICANT . INS!,¢LLLATION LOCATION __ 1NE{ ,kLLATION OF: SEPTIC TANK ' J SEEPAGE Pit , DRAIN FIELD // , OTHER TYPE ANDS'ZEOFFAO"-'TYTO 'ESERVED '/1 FIN ~ICED THROUGH , SOIL TEST RESULTS CO ,LETION DATE ANTICIPATED TO BE INSTALLED BY NOTE: THIS PERMIT IS NOT VALID '¢~'lTHOU.T SOIL TE~' Fl~=~L INSPECTION: 24 HOUR NOTICE REQUIRED. BACKFILLING OF ANY SYSTEM WITHOUT FINAL.INSPECTION BY THE D~ &RTMENT OF ENVIRONMENTAL QUALITY AUTHORITY WILL BE SUBJECT TO PROSECUTION. Ml,.l~UlVl DISTANCES, REOUIF~El~EHT$ FOUNDATION TO SEPTIC TANK ~ FQ 4DATION TO SEEPAGE Pit ~ / , BRAI" FIELD /~ SEPTIC TANK ~O SEEPAGE Pit WALL /~- / SE 'lC TANK ~-- ' , SEEPAGE PIT ~ / , DRAIN FIELD I ~ NEAREst LOT LINE. Wr~L TO SEPTIC TANK / ~ ! RAIN FIELD /~(~) WATER MAIN TO SEPTICT,~NK TO RIVER, LAKE. STREAM. , ALSO CONSIDER AREA V/ELLS. , SEEPAGE Pit ,, DRAIN FIELD C. T IRONINTO AND OUT OF SEPTIC TANK AND INTO CRISCROSSING GAP OF E~(CAVATION 5 FEET INTO UNDISTURBED SOIL. 4~!'gH DIAMETER CAST IRON SIPHON PIPES ON SEPTIC TANK AND SEEPAGE 'ED WITH AIRTIGHT REMOVABLE CAPS. G~VEL BACKFILL qFORM TO [~OROUGH REGULATIONS REGARDING INSTALLATION. DIAGRAIVI OF SYSTE~I ;~F. RTIFY THAT I AM FAMILIAR WITH THE REQUIREMENTS OF GREATER ANCHORAGE AREA BOROU/~;H OR. DINANCE NO, 28-68 AND TBAT THE ABOVE /~R[ATER AI~CIIOI</\[;[ ?,1,~.^ Department of lCnvironmenLa] Qua] Anchorage, Alaska t(~ (~ · S()II,S I,O¢i '-I'I.;II01,ATION TEST ~ · , , 'or ~,1~ ~,~-- - ~kc,~c c~,, c ~- :~ ~ ~,',," -~ ;]ate Perf'orlm'd ~ -; ~--~ . rfor, ed f .......... ,__~.__~ .......... ~r -~--ww ........ l']]is fgrm reports: Soils lo9 Percolation test [.. el) th Feet ... ~2 - A- T - ' } - ~9- 12- Was ground water encountered? If yes, at what deptl/? __ Readi n9 Date Gross.Time Net Time Depth to Water Net Urop 'ire-FE-0TaT{ 0W 'r-~i~[ ...... mi nute. · ~--Proposed installa'tTGi~-:-"-~-e~'ge Pit .Drain Field ................. ~ ........ I)epth of Inlet ", De~t~{~']J~ii~}~:C'pit or trench .... ~ ....................... 6 1974 AM Performed For Bob Orell LF~al Descri pti.o~: Lot GR}.,,I.J_.[! AtlC}}OR/~GIL ARf'A BOROIIGtl [)[!PARTII 'T OF ENVlROHHFHI'AI. QII~I.I'I 3330 "C" Street. ANCIIORAGE, ALASKA 995D3 -Case I! 3 B1 ock 2 Soil Characteristics Ti, is Form R~ports Soils Log .......... __XX~ ....................... Percolation Test ,-~ Soil Test /4ust Be Logged To 4' Below Proposed Seepage Sys. tem - )epth ' ' Feet Peat, etc. Light brown sandy' silt with occasional coarse gravel SP-GM Coarse gravel, coarse sand OW Grey sandy silt with cobbies and coarse gravel ML-, CH-SM GW No 3-- 5~ 0-- .6 Dated Performed June 4, 1974 S u b d i v i s i o n.__P?_g_s.p_e:c__t.jJ_ej~hts Dark brown sandy silt with clay Coarse gravel and cobbies Was Ground Water Encountered? If Yes, At ~lhat' Depth? , ,Readi n9 Date rcolaLion Rate Gross Time M i n u ~, ~ Net Time Depth to }t20 Net Drop Proposed Ins~]a-]-lati'~i']-: Seepage Pit XX Drain Field Depth of Inlet Depth to Bottom o'F-Pit or Trenc}Y MMENTS: Based on Boroug-h regulations, we recommend 168 sq. ft. per bed~'oom. 16' ' ..s t Performed lJY.__~[p_h_~ameson Date Certi fi ed BY: Da l:e: NAME OF APPLICANT GREAT',... ANCHORAGE AREA [3ORO,..GH DEPAt~T[~ENT OF ENVIRONMENTAL QUALITY 3330 "c" STREET ANCHOIYAGE, ALASKA 99503 TELEPHONE 274-4561 SEWAGE D~SPOSAL SYSTEM ~ APPLICATION AND PERMIT PERMIT NO __ ;O( I YES* RESULTS ' ~~-- /~~~~ NOTE: THIS PERr,~I~ IS NOT V~LID ~ITHOUT SOi~ 'I~AL INSPECTION: ~4 HOU~ NOTICE ~EQUI~ED. BACKFILLING OF ANY SYSTEM WITHOUT F NA~ INSPECTION BY TH~ DISTANCES, REQUIRE~/IENTS DIAG[~AM OF S~STEM TO SEEPAGE PIT ~ DRAIN FIELD __ E, ,lC TANK TO SEEPAGE PIT WALL / ~ / ! } NEAREST LOT LINE. 'ELL TO SEPTIC TANX / 0 ~' / . SEEPAGE PIT ~¢ ~ lC TANK. / ~ / SEEPAGE Pit -- / ~ / ~D WITN AIRTIGHT REMOVABLE CAPS. ~AVEL BACKFILL ~'ORM TO ~OROUGN REGULATIONS REGARDING INSTALLATION, .~TIF'Y THAT I AM FAMILIAR WITH THE REQUIREMENTS OF GREATER AN/C.H~GE /~REA ~oroLIGH ORDINANCE NO. 2B.§O AND THAT THE ABOVE ........ ..~.. 103 E, 26TH AVE., ..~-'IORAGE 272-8911 NEIL "~-~'~.T BUILDING, PALMER 745-44}'? April 16, 1974 i~r, Earl ,], Clabo P.O~ Dox 3-4056' Anchorage, Alaska 99501 Re: Soils Log Lot 8A Block 91 Prospect Heights Subdivision Dear Hro ClabO: Transmitted herewith is the soils log for a test hole taken on the above referenced pr, o!)erty per your request, It should be noted that the gravel ti~ickness in the hole widened from three (3').feet on the norti~ side of the hole to six (6') feet on the south side of holeo l'his would indicate that the gravel ~?ould increase in thickness in the location you propose to place the seepage pit. LS/mN Enclosure )RDON D. UNWIN, P.E. 1-[{O £CI4tZEiEN~ JR.~ P,E. ..... S'O I L S E.J. Clabo 0 PEOJEO~ T~st'.Hole ELEV., L'O (~. . TEST ItOLE NO;. #1 · : '-"J"' '~' '" :'-DATE April 16, 1974'. _ TOP OF HOLE..Lowest~ectlon of Lo.t' ~':'" W,O~ .N0.'74106 . . .~ ...- .: ...,....: ] ...... :.L-:.'", :..2_. ....... ~.2 ............. : ......... .-. - Black':Pa~t' &'Over Burden ." · .. ': '.,.., ........ ' .......... ~ .......... ................. : 'iQ/~ ~ · b. '.': ' .... ' ":' ' _... ::~'"L~] ....... ;~-;-4' ' ' ~>' .,._L ':.~.~ .......... J...-2.:...f..~---:-: ........ ~-:.~ ..... ~ ..... ~ ................ .' ~ 'i '" ' " '--:--'-'~ '7 .......... . ............................................ ~ .... '".': ~ .... i ....... ¢' " Wet Sapdy, SJ~l.~i 4' 5 R&M Civil Engineers EN(>,dEERiNG & GEOLOGIC,- ,,L CONSULTANTS 229 EAST51st. AV~E. - P.O. BOX 6087- ANCHOR. AGE, ALASKA 99503 TELEPHONE 907-2']9-0483 TELEX 090-35419 Geologists Land Surveyors · J/~,fv~ES W, ROONEY, ~'. E. MALCOLM A. MENZIES, P,E,, IL,S, .I/~-m. ES.H, WELLMAN, P.E. June 17, 1974 RALPH R. MIGLIACClO Engineering Geologist.. Mr. Earl Clabo- Clabo Construction Co. .P.O. Box 3-4056 Anchorage, Alaslca 99501 Re: Test Hole and Soil Log Report for Sanitary System Lot 8A Block 1 Prospect Heights Subdivision Dear Mr. Clabo: We are submitting herewith the test boring results and our comments regarding soil conditions encountered at the subject site. This in- . vestigation was performed in accordance with your request of June 14, 1974, and those procedures outlined in a letter dated September 13, 1971 by ~. Rolf Strickland of the Greater Anchorage Area Borough Department of Environmental Quality. A single test hole was put down within the Lot 8A area for the purpose of defining general subsurface soil conditions for the proposed sanitary system. Excavation was accomplished with a tractor-mounted backhoe and the test hole was extended .to a total depth of 14.0 feet below ground surface. The final log prepared for the test hole has been included in Drawing A-O1. Gronnd water was not encountered in the test hole. During dxcavation and logging of test hole, there was no indication of ground water below the immediate base of the test hole which was terminated at a depth of 14.0 feet° Since the soil was relatively dry, ~e do not feel that the water table is located ~¢ithin the upper few f. eet below the test hole base or to a depth of i7.0 feet. l~e appreciate being given this opportunity to be of service to you. Should you have any questions with regard to the above, please do not hesitate to contact us. Very truly yours, R & M'ENGINEERING & GEOLOGICAL CONSULTAI~TS, ]:NC. . .Tames W. Rooney . ~ JWR: lcd ORGANICS .ORGANIC SILT 0,0~ 0,$ 2.0 SILT, TRACE SAND 4,0I SAND, SOHE SILT, (SP) SANDY GRAVEL W/SOME S LT AND COBBLES (SW-GM) ×/ NOTE: NO WATER TABLE Test hole excavated with tractor mounted backhoe, I~t.O T.D. Engineering Geological Consultants Inc. PAUl_ BI_OOH PROPERTY LOG OF TEST ttOLE ANCIIORAGE ALASKA qREATER ANCHORAF;E AIEA BOROUGH " 327 EAGLE STREET ANCHORAGE~ ALASKA 99501 This Fc~m Reports a: So,is LoB . .t"eF~atzon Test Depth Soil Characteristics STAT' tqlJO Was Ground Water Encountered?~/_~ if Yes, At What Depth Reading Date GrOss Time Net Time Location Sketch Depth To H20 Drop I ~ Pit~ Drain Field Froposed nstallatlon: Seepage __ Depth' Of Inlet Depth To Bottom Of Pit Or 'French Test Performed ....~_~_~ eL OG IC/~ L CO,U3 UAT/~ lO TI '. ,, . Dar Certified y ,~ i