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Home My WebLink About007 S10202�� q°►-la 1 m / O Q.. Q I 1 �O I , I < UJ I I I az / / a 0 � a / > U z QHO Qin a0W �F-F- / / LLI¢w J / W O N 3 \ \ Ow z Q- LLJ CM \ \ O _ vwi \ \ 0- LLI \ \ w N 0 0. Q. .� N = O 4r)o 6 - O CD z� II — OU 'a O a Q w 'a t— 't w O � co z .= 00 4 Oo N r o O N (O t1') LLl � ®QO IO 'Ozn O I � M 12M„95.ZO.00S trZ'09S ----- — --- F - w \ wo zo J O rn U N ui m U Q \ \�— LO Ow.. Q w \ w cn W 0 �0 gyp¢ Nt=- L, ►_ O O a U ►a- O = 00� p_ F- i' J 0.. (n O I J r iW3 �z CL UO LL'299 M„ ZC,OO.00N _J Q w �w Q Z J X x. O w az ct w Q U --- 0) eco O0 co _®® (x~® ® co •J CO) p (!t v+ LLJ t-• 1.. 0. L Cic LU �V N cc N I -z r iD � 00 z 01/20/1999 10:32 907-345-3264 A W MURFITT CO PAGE 03 Municipsilty of Anchorage DEPARTMENT OF HEALTH & HUMAN SERVICES 825 "L" Street, Anchorage, Alaska 99502-0650 SOILS LOG—PERCOLATION TEST PERFORMED FOR: DOWL Englneer*JMalzak Property _DATE PERFORMED: June 26l & July 10, 191@8 LEGAL DESCRIPTION: Tract B, 007 Subd. Chugisk, AK Township, Range, Section: T15N R1W, SEC. 16 S.M.. AK. 1 SLOPE SITE PLAN ®' WAS GROUND WATER 10 EE "I Fomar litter, Organic SILT (OL), red brown, moist, ENCOUNTEREDa no Time Time I I r l 1 to a depth of 1 foot. 4:25 to fast to measure IF YES, AT WHAT ■■■N■■■N■■MEMIRP-M ® GRAVEL (GP) coarse boulders, with SILT and 12 tl eavm• a„, A n n 2 �► SAND, light brown, moist,, to 2 R. 13 " +, Monit0dnp7 nor* Dde: 7/10W 4 ff•4'Y f /EN. 49 •Jia 1 - GRAVEL with SILT and SAND(GP-M, brown, Allen W. Ur(t t 46 ' 4k moist, Finer GRAVEL and lase SILT with deRth n 4 , Bulk Sample S to 9 ft, for MA 5 Perk, tea 6.5 to 6.0 Ft. $ y 0 7 - more gray with depth, -i, s ' 9 '- ®' WAS GROUND WATER 10 .`�'' 4 ENCOUNTEREDa no Time Time It �` MON No 7/10/98 4:25 to fast to measure IF YES, AT WHAT ■■■N■■■N■■MEMIRP-M ® DEPTH? — I 12 tl eavm• a„, A n n ®� y IN' Depth la fter lulu 13 " +, Monit0dnp7 nor* Dde: 7/10W Total Depth 14 feet, Hole y 4 ' Dry after Excavation. Reading; Dote Oros Net Depth to Net 15 J ( Komatsu PC -120 Backhoa 18 4" Olameter PVC Iradaued for water observations. 17 Excavated 6/26W. 7a 19 Time Time .■� 701MMMM Water Drop MON No 7/10/98 4:25 to fast to measure M■E ■■■N■■■N■■MEMIRP-M ® " „ n tl eavm• a„, A n n IN' ..ME■■■ME■ 6 Q Total Depth 14 feet, Hole y 4 ' Dry after Excavation. Reading; Dote Oros Net Depth to Net 15 J ( Komatsu PC -120 Backhoa 18 4" Olameter PVC Iradaued for water observations. 17 Excavated 6/26W. 7a 19 20 "\ UFG551U a„r 6n PERCOLATION RATE �rYhi�A�i � C HOLE DIAMETER TEST RUN BETWEEN 5.5 FT AND 6.0 FT COMMENTS Petwiation rate too fast needs a fitter sand acarid to slow down infiltration rate. GeneMlly good site far septic. Recommend a shallow trench or a bed system. SEE PERC, SOIL GRAINSIZE REPORT and ATTACHED SITE PLAN by DOWL Engineers. PERFORMED BY: Allain W. Murfitt, P.E. CE 4977 1 CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: July 14, 19M Time Time Water Drop soak 7/10/98 4:25 to fast to measure mak 4. ()f --j 4 ® " „ n tl eavm• a„, A n n Y 6 Q 4 ff•4'Y f /EN. 49 •Jia 1 Allen W. Ur(t t .o o. 49 7-E n 20 "\ UFG551U a„r 6n PERCOLATION RATE �rYhi�A�i � C HOLE DIAMETER TEST RUN BETWEEN 5.5 FT AND 6.0 FT COMMENTS Petwiation rate too fast needs a fitter sand acarid to slow down infiltration rate. GeneMlly good site far septic. Recommend a shallow trench or a bed system. SEE PERC, SOIL GRAINSIZE REPORT and ATTACHED SITE PLAN by DOWL Engineers. PERFORMED BY: Allain W. Murfitt, P.E. CE 4977 1 CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: July 14, 19M Municipality of Anchorage DEPARTMENT OF HEALTH & HUMAN SERVICES 825 "L" Street, Anchorage, Alaska 99502-0650 SOILS LOG -PERCOLATION TEST PERFORMED FOR: DOWL Engineers/Malzak Properly DATE PERFORMED: June 26, & July 10, 1998 LEGAL DESCRIPTION: CTS- Tract B, 007 Subd. Chugiak, AK Tow 10 1 Foresr litter, Organic SILT (OL), red brown, moist. to a depth of 1 foot. 4DEPTH EEET, I 1 111 1.I GRAVEL (GP) coarse boulders, with SILT and SAND, light brown, moist, to 2 ft. 2 3 jtj) ®� GRAVEL with SILT and SAND (GP -GM), brown, N 12 4 4b moist. Finer GRAVEL and less SILT with depth 13� 5 kti Bulk Sample 5 to 9 ft. for MA Perc. test 5.5 to 6.0 Ft. Total Depth 14 feet. Hole 8 - it more gray with depth. 15 9-6 ._ 16 18 19 20 • e�., 1. 1'� J.J ,'' `, ,:r,,. u PERCOLATION RATE 1 (rdin`utes/IncR)`PERC HOLE DIAMETER 6 TEST RUN BETWEEN FT AND 6.0 FT COMMENTS Percolation rate too fast, needs a filter sand sand to slow down infiltration rate. Generally good site for septic. Recommend a shallow trench or a bed system. SEE PERC. SOIL GRAINSIZE REPORT and ATTACHED SITE PLAN by DOWL Engineers. PERFORMED BY: Allan W. MurFitt, P.E. CE 4977 I CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: July 14, 1998 nship, Range, Sec SLOPE IN IN ®BION • WAS GROUND WATER ENCOUNTERED? no IF YES, AT WHAT DEPTH? Depth to Water After Monitoring? none Date: 7/10/98 tion: T15N, R1W, SEC. 16, S.M., AK. SITE PLAN CTS- Depth to Net Water Drop 10 7/10/98 4:25 PM -:.: •. �:.,.,,. to fast to measure presoak 4.2.7 -PM ' F N 12 . 13� 3' kti Total Depth 14 feet. Hole 14 Dry after Excavation. 15 Komatsu PC -120 Backhoe 16 4" Diameter PVC Installed 17 4 knD�iP for water observations. Excavated 6/26/98. 18 19 20 • e�., 1. 1'� J.J ,'' `, ,:r,,. u PERCOLATION RATE 1 (rdin`utes/IncR)`PERC HOLE DIAMETER 6 TEST RUN BETWEEN FT AND 6.0 FT COMMENTS Percolation rate too fast, needs a filter sand sand to slow down infiltration rate. Generally good site for septic. Recommend a shallow trench or a bed system. SEE PERC. SOIL GRAINSIZE REPORT and ATTACHED SITE PLAN by DOWL Engineers. PERFORMED BY: Allan W. MurFitt, P.E. CE 4977 I CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: July 14, 1998 nship, Range, Sec SLOPE IN IN ®BION • WAS GROUND WATER ENCOUNTERED? no IF YES, AT WHAT DEPTH? Depth to Water After Monitoring? none Date: 7/10/98 tion: T15N, R1W, SEC. 16, S.M., AK. SITE PLAN Reading Date Gross Net Time Time Depth to Net Water Drop presoak 7/10/98 4:25 PM -:.: •. �:.,.,,. to fast to measure presoak 4.2.7 -PM ' F N Pima kti �i i Alicn �,i. 4 knD�iP 1 �6 P PE A In S r Reading Date Gross Net Time Time Depth to Net Water Drop presoak 7/10/98 4:25 PM -:.: •. �:.,.,,. to fast to measure presoak 4.2.7 -PM ' F i Alicn �,i. 100 90 80 70 W W 60 Z U - Z 50 W U W 40 0- 30 20 10 0 Particle Size Distribution Report = o00 GRAIN SIZE - mm %COBBLES %GRAVEL %SAND %SILT %CLAY 0.0 49.1 45.3 5.6 SIEVE SIZE PERCENT FINER SPEC.* PERCENT PASS? (X=NO) 1.5 in. 100.0 1 in. 92.9 .75 in. 83.9 .5 in. 72.0 375 in. 59.3 #4 50.9 #10 23.3 #20 18.1 #40 16.0 #60 13.5 #100 9.9 #200 5.6 500 100 10 1 0.1 0.01 0.001 GRAIN SIZE - mm %COBBLES %GRAVEL %SAND %SILT %CLAY 0.0 49.1 45.3 5.6 SIEVE SIZE PERCENT FINER SPEC.* PERCENT PASS? (X=NO) 1.5 in. 100.0 1 in. 92.9 .75 in. 83.9 .5 in. 72.0 375 in. 59.3 #4 50.9 #10 23.3 #20 18.1 #40 16.0 #60 13.5 #100 9.9 #200 5.6 Soil Description Poorly graded gravel with silt and sand Atterbera Limits PL= NP LL= NV Pl= Coefficients D85= 19.8 D60= 9.71 D50= 4.52 D30= 2.49 D15= 0.331 D10= 0.152 Cu= 63.81 Cc= 4.19 Classification USCS= GP -GM AASHTO= Remarks Bulk Sample. Natural Moisture 2.5%. (no specification provided) Sample No.: 1 Source of Sample: Backhoe Test Pit Date: 6/26/98 Location: Site Fagged By Home Owner Elev./Depth: 4 to 9 Ft. Client: CMM Construction/DOWL Engineers ■ ■ Murfitt Project: Soil Percolation Test AIWA Malzak Property, Tract B, 007 Subdivision Chugiak, Alaska uomm-aw# Proiect No: 98-322.01 Plate 1 /./iDOWL ENGINEER S A Division of DOWL, Incorporated August 11, 1998 W.O. D56200J Mr. Jim Cross On -Site Services Section Department of Health & Human Services Municipality of Anchorage PO Box 196650 Anchorage, Alaska 99519-6650 Subject: Platting Resolution, Case S-10202 Dear Mr. Cross: RECEIVED AUG 12 1998 Municipality of Anchorage Dept. Health & Human Services DOWL Engineers (DOWL) is assisting the Municipality of Anchorage (MOA) with the subdivision, rezoning, and platting of 80.0 acres of land in the Heritage Land Bank Parcel 1-007. As a condition of approval for the platting action (S-10202), the Department of Community Planning and Development recommends that we provide "supporting documentation on water availability" (Comment No. 5.c). Please find the attached table, map, and well data collected in July of 1998 at On -Site Services. The map shows the approximate location of wells on lots adjacent to the subject site. The table summarizes the estimated flow of well water in gallons per hour (gph) from well logs. Of the 10 sites where well logs were available, the average flow is 634 gph. These adjacent wells demonstrate the availability of an adequate supply of water to the proposed Tract B, which will be developed with a single (one) residential unit. Tracts A and C will remain in Municipal ownership and are not being developed. Please see the attached platting comments, maps, and table, and copies of well logs. If the attached data meets your approval, please initial Comment No. 5.c and return it to me via facsimile at 563-3953. If you have any questions or need any further information, please call me at 562-2000. Sincerely, DOWL Engineers Thomas R. Meehan Planning Department Manager Attachments: As stated D56200J.Cross.TRM.081198.kmp 4040 B STREET 0 ANCHORAGE 0 ALASKA 0 99503-5999 0 907/562-2000 0 FAX 907/563-3953 Heritage Land Bank Platting Case No. 5-10202 July 13, 1998 W.O. D56200J WELL DATA The Table below documents the availability of a safe and adequate supply of water at developed sites adjacent to the Heritage Land Bank, Parcel 1-007, 007 Subdivision, Chugiak, Alaska (see map). Data was collected at the On-site Service Section, Department of Health and Human Services, Municipality of Anchorage in July 1998. Sue Town Estates Subdivision (East of 007) Site Well Data Lot No. 3 Well Log Lot No. 5 Well Log Lot No. 6 DHHS On -Site Approval Lot No. 7 Well Log Lot No. 8 Well Log Lot No. 10 Well Log Lot No. 2, Block 3 Pere. Test Lot No. 6, Block 3 Well Log Skyline View Subdivision (North of 007) Flow (Estimated) 420 GPH 1200 GPH not available 420 GPH 480 GPH 720 GPH not available 600 GPH Site Well Data Flow (Estimated) Lot No. 2A, Block 5 Well Log 1320 GPH Lot No. 2B, Block 5 Well Log 720 GPH Lot No. 3, Block 5 GAAB Report not available Lot No. 4A, Block 5 Well Log 230 GPH Lot No. 4B, Block 5 Well Log 230 GPH D56200J.Well Data.Heritage Land Bank.BJM.071398.mas A: SUMAC DRIV-c 7 c PC c� R -SA Z7, 1320.76 R -W 7- SECTION UNE CSIAT PLI TRA CT C 549.514 S.F. 19.50 AC � l SCALE: t"=400' REVISED 056200J SHRINK PLAT E3[3www L TRACTS A, B & C ANEW ENG 1N E E R S 007 SUBDIVISION I I MUNI GRID No. NW1059 cfiyvo 13�AJK- PA126EZ- 1-00-7j 1287.12 s 8939 000c 99.08 R-SA Pu Cl CA -Dc- C M sc 11 "f0lA"ClLLV �CA 79 Y/Ov I50 cxrc.g->, V Pu849.48719.50 R-10 V'TRACT I o APPROXIMATE TRAIL p CENTERLINE. SCE NOTE S. 50* SECTION LINE ESUT.--1 Pu PERA.S. 19.10.010 Pu TRACT A' 1.742.452 S.F. 2 40.00 AC. n U, R-10 1.120.00 H 8939'00- W &)IV -517-E- W,4TeP- AffffS DAM //0/ fy W � l SCALE: t"=400' REVISED 056200J SHRINK PLAT E3[3www L TRACTS A, B & C ANEW ENG 1N E E R S 007 SUBDIVISION I I MUNI GRID No. NW1059 cfiyvo 13�AJK- PA126EZ- 1-00-7j