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HomeMy WebLinkAboutSCIMITAR #1 S-4692s%IzAo, (I. t I,D I HOdl On - i - 0'),Wh[_D Wh`__ � 117 4. CncinCCRs4040 "9" STREET ANCHORAGE, ALASKA 99503 PHONE 907 278-1551 May 15, 1980 W.O. #D10763 Municipality of Anchorage Department of Health & Environmental Protection Pouch 6-650 Anchorage, AK 99502 Attention: Mr. John Lynn Subject: Scimitar Subdivision - S-4692 Additional Soils Information Dear John: MUNICIPALITY OF ANCHORAGE DEPT. EN"vLFO; :". CTION ik YI;.' 1 C, 180 We have submitted the final plat of Scimitar Subdivision Unit No. 3 for filing. Based on the subsurface soils in- formation from adjacent subdivisions and test holes within Scimitar Subdivision, the subdivision plat was approved subject to resolving soils with DHEP. DHEP's recommendation dated February 21, 1978 for S-4692 stated "We (DHEP) are in accord with general soils in the vicinity, but this Department must have soils data and locations of test holes shown on the plat." On March 17, 1980 we had a meeting with you to discuss the soils and review the existing test hole locations and data. The outcome of the meeting was that you wanted us to inspect the road cuts and provide you with a report of our findings. On May 13, 1980 we visited the site and obtained representa- tive soils samples from the road cuts. The following is our findings. There were two areas which we looked at that didn't have test holes. The first area encompasses Lots 1 through 5, Block 3, and the second area is at the south end of Belduque cul-de-sac. In the first area, we took two soils samples approximately 15 feet down in the cut; one at the northerly end of the road cut for Sieka Drive in the area of lot line 3&4, Block 3 and the other near the south end of the cut on Lot 2, Block 3. The material exposed by the cut varies from Municipality of Anchorage DHEP May 15, 1980 Page 2 Silty Sandy Gravel, GM (Sample 1) to poorly graded course Gravelly Sand, SP -GP (Sample 2). The area was predominently Gravel y Sand except the northerly end where Sample 1 was taken which varies between the two materials. The second area we sampled at the south end of Belduque was a shallower sample taken from the old road cut. It was Gravelly Sand/Sandy Gravel, GP/GW (Sample 3). It indicated The same soil yt pe as encountered by Test Hole #1 to the east and Test Hole #2 to the north. In reviewing the existing test hole data and road cuts, we have concluded that the area is predominently GW, with some SP and small areas of GM and GP. In the northern area (Lots 3, 4 & 5, Block 3) where the smaller areas of GM were encountered in the road cut, the lot owners may want to explore their lots to find the most economical location for an on-site system. In conclusion, it is our opinion that an on-site sewage disposal system can be used on each lot in this subdivision unit. If you have any questions or need additional informa- tion, please give us a call. RPG:rb Enclosures Very truly yours, DOWL ENGINEERS Robert P. Grier, P.E. MUNICIPALITY OF ANCHORAGF DEPT. EN nsor �CRON 1 11 RJ'CFIVL1) MEMO -LETTER IV& [I AIR MAIL 0 REGULAR 0 INTER-OPFIC9 DICKINSON - OSWALD & PARTNERS ENGINEERS AND SURVEYORS 800 CORDOVA STREET 9 ANCHORAGE, ALASKA 99501 • PHONE 907 277.1685 T -I m 0 Li m ry rp 'P. 3=410 N - TO .-DATE� SUBJECT Fwm ML"72 lb. 0,.-;, B ,d, 1a , Bo. 5 .Gallo,, Te.., UkLATTR WIXIMAGL ARLA BOROUGH lk, 1) a r I;mc:� it L of I. n v i ro n nui), Lal 0 it �i 1 i tv VI POR N! DN' I'l a . i i i i n q c, pa r i; i -i or. IG F RO H: ko I f Sari (, iA -,,- n d. R . S Cn i c. F San i Aria j S U 1-1. j C. CT : So i I s 11.1forilati on fay, SO pli tar Subdi v! S i On received Lin;! soils inforr,,iation for i:ho �-,ub,jc:ct subdlvishor' P.md it;ive. re v i ewu el -1 So 11 s 1 n f o ma t i on s h ovis th vi t th a r c, a II) as i cal l2v 11 ra VC? Based on the soils r,!porc , lio fi"d thal: all lots a r;' a Oe q, ti a t s i z. Q d f a r o n .- s i ];-,+ F, u w a g n disposal. Our only remaining clucstion now is, are t1wre ndequiate vinter SupOies for individual wulls on each lot? Phis i i i f a r i it a t i a i i w i I I have to be provided by thr engineer for Y." - 6,y ',his Jlopirtiiic—it prior to our ,approval. h h P pMGH0R�0p�N 6 �! ��Ptic LJ � e�pg • ••. � �'(}/rYf f f0'tkt . a s e GREATER ANCHORAGE AREA BOROUGH P /ZED JAK�'�96 11 FROM: DEPARTMENT: D, �vYma s'SUBJECT: � % �'� 3 t S08 INITIATED BY: Q S, �� �` ' (a K) � �" DATE OF MEMO: F j A'T' A DATE ANSWER TO: DEPARTMENT: — ` L A N (U 1 N %_"`) _ _ REQUESTED: RECEIVER: ®C �i1 Fid IV REQUESTED ACTION SCHEDULE FOR INFORMATION ONLY PREPARE BACK-UP INFORMATION FOR IMMEDIATE ACTION CALL ME BEFORE YOU ANSWER FOR YOUR CONSIDERATION NEED YOUR RECOMMENDATION OTHER Tl Te, �,.'� i e -✓y %t ! ". (7l... ' C fel f' r,-] . '� f i .r�. ✓ ,*`1 h�:.f3 '} d'` :=.r' c'`p�e"+ f r�i>F r. SIGNATURE GREA•ER ANCHORAGE AREA BOROUGH DEPARTPIF_•NT OF ENMRONMENTIAI QUALITY Case ti 3330 "C" Street i ANCHORAGE, ALASKA 99503 performed For Mlliam Platzek _ Dated PerformedOct. 14', 1972 .egal Description: T15Y, R171, Seviara Meridian ('his Form Reports Soils Log X Percolation Test Soil _Test Must'Be Logged To 4' Below Proposed Seepage System Depth :f FPPI' Soil Characteristics s Reading Date _ Gross Time Iry Overburden. Net Drnp ' O • s Gw- a. 3— • . ° 3— Was Ground Water Encountered? Ma) If Yes, At What Cep,'th? s Reading Date _ Gross Time Net Time Depth to H2O Net Drnp S fop iA both di ec�iorr! ws �deoua�e.I s Reading Date _ Gross Time Net Time Depth to H2O Net Drnp Percolation Rate h1i nuts, Proposed Installati.cn: Secpasr: Pit X Drain Field Depth of Inlet ''' T, �Ocpth to Bottom of-Pi,t or TrencFi—' COMNCNTS: * e Exact.loca-icn of testhole to be -provided by landoimcr and der1oper- _.-i.4.1.f-JTo bi., 5Q (Si I .I) -r-(,gu p e. 85 'sotf t _, e brledi_oom_ . 'rest Performed BY Harold, JT i-Dat.e 'Certified R/�j 1 IC��=�Y __ . llitA-1 � m; I GREATER ANrHORAGE AP!:A BOROUGH DEPARTMENT OF ENVIRONMENTAL QUALITY 3330 "C" Street ANCHORAGE, ALASKA 93503 Case #� performed For ^/illizi Platzek Dated Performed_oct. 14,1972 �,^= -'X Sce.10 �1L�1Si'1L` .'11I5N�171,Sewd _egal Description: i.��3:' t'.eridiazr Chis Form Reports Soils Log_ X - Percolation Test Soil Test Must Be Logged To 4' Below Proposed Seepage System Depth ' Feet—�---• Soil Characteristics I .... I averburdem -- MI ?dell graded gravel with clean coarse sand & scattered cobbles Was Ground Water Encountered? ym S lops �a If Yes, At What Cepth? 1_�I I I 1 J Reading Date 3-- Net Time Depth to H2O Net Drop) Field TrencF'e o a Inlet Dcpth to Bottom of or COMPENTS• * Exact location of testhole to be provided by landowner - Hole No.3- i-�s~,-.a Requires 85 sq ft. per- bedroom. 9- 0r . �w o• BY Harold Side, Jr.-DatC�'i 2 -= rigid 3 — 4— o • 'o�'o 5_ ?dell graded gravel with clean coarse sand & scattered cobbles Was Ground Water Encountered? ym S lops �a If Yes, At What Cepth? 1_�I I I 1 J Reading Date Gross Time Net Time Depth to H2O Net Drop) Field TrencF'e Depth of Inlet Dcpth to Bottom of or COMPENTS• * Exact location of testhole to be provided by landowner - Hole No.3- i-�s~,-.a Requires 85 sq ft. per- bedroom. p BY Harold Side, Jr.-DatC�'i Ry rigid Test Performed Percolation Rate Minw� Proposed Instal la•t:ion: Serl.aq(: Pit X Drain Pit Field TrencF'e Depth of Inlet Dcpth to Bottom of or COMPENTS• * Exact location of testhole to be provided by landowner - Hole No.3- i-�s~,-.a Requires 85 sq ft. per- bedroom. p BY Harold Side, Jr.-DatC�'i Ry rigid Test Performed L,J ER ANCHORAGE , t.,:A 13ORi. DEPS/IRTMENT OF EN -TIRO, .EiT.�, r1 _ QUALITY Case # 3 3 3 0 " C" StreetI------- r ANCHORAGE, ALASKA 99503" Performed For William Platzek Legal Description: Dated Performed _Oct- 14,1972 This Form Reports Soils Log x :�r{tSL_'fi �'.�(1;$ Sect 10��tt��3.:5�.�.�aJ�dfi15N1}� S—IV ;ard— ?,�i Pan , Percolation Test Depth Soil Test Must Be Logged To 4Below Proposed Seepage System Feet c,,;i . . ,y .r N NN N Overburden SW Gravelly Sand $ p '•'. ' Coarse Clean - Sand GW : Well graded clean gravel o with thin scatt-ered lenses . • . q. of coarse, grain sand . Gw Was Ground Water Encountered? Nof`Y If Yes, At What Dep,Ch?___-_—_ • I Reading Date Gross Time 01oel 1 Net Time I Depth to HZO I Net Oro Percolation Rate tl;nia� Proposed Insxalla-tion: Seei:agr: Pit' Depth of Inlet x Drain Field — _Depth to GOttOm o Pi t or Trench "—"•" :OMh'CNTS: -Enact location_of testhole to be--- prov�ded by la.ndrnmer Hole No. 2 -This •;;oil w11. xcquixe 92 sq. �i. per''Uedroom est Performed BY Harold Eidc Jr. Date C' �---1s EnG'E;. ffoologist 1103 n ti - t GRL.�TER ANCHORAGE APFA BOROUGo DEPARTI1FNT OF ENVIRONMENTAL QUALITY Case N 3330 "C" Street ANCHORAGE, ALASKA 99503 4. Performed For,'lilliam Platzek _Dated Performed Oct.14,1972 Legal Description: L79q SE%ec.10cJ;3 ia� � T152T,R1 ,Serra—raT1�eriid W This Form Reports Soils Log x Percolation Test - Soil Test Must Be Logged To 4' Below Proposed Seepage System - Depth Feet Soil Characteristics N Overburden (y N N N N ^ —. Clays with Sand • a oa.• Coarse grained sand & L�• gravel( very clean.) o •. Was Ground 4±a,ter Encn, ntered? yes; Source was surTace runoff. If Yes, At What Cepth? -t �� ___l -1-i Reading i I I�JJ i L Depth to H2O Net Drop I � _ 1L—O% noin}t oher!— �� ___l -1-i Reading Date ''.•Gross Time Net Time Depth to H2O Net Drop Percolation Rate Minh Proposed Installation: Serpagc Pit. 'X Drain Field Depth of Inlet_ _Depth to 2ottom of Pit or Trencr, COMPENTS: " Ezact location of testhole to be provided by landowner unln 2In_ d rnGu _e^ 151.yA_��CS brd om (/yam Test Performed 3Y iiarold Eide,, Jr..�_ `_ Date 00--Ti-ed M } GRE.•, f ER ANCHORAGE !RFA BOROUGH DEPARTMENT OF ENfIRWINCNTAL QUALITY Case # 3330 "C" Street. ANCHORAGE, ALASKA 99503 erformed For Pfillia, Platzek Dated Performed Oct.14+ 1972 Legal Description. :LzC_tS --^.;). „�,:1:7'vS�ect. lof -.�ti�F.�f-T.X-'�=g�i'151`d� R1.7, ae�ard L`.eridian. This Form Reports SoilsLogX Percolation Test Depth Soil Test dust Be Logged To 4' . Below Proposed Seepage System Feet Soil (h�rartaric+i -e I N N N- Overburdem N N .� C ' ."ell graded gravel with '-` abundant boulders and • " Q • ° ° clean coarse sand? v- _ • a o _.. Uo a •d . ° ;tea Was Ground Water Encountered? -rd) If Yes, At What Dept -h? J• Reading Date I Gross Time jNet Time pDopth to Hz0 Net Drop reolatior Rate�`�-- Proposed Installation: Sce.pag': Pi t. ,1X Drain Field Depth of Inlet _Depth to Bottomm of Pit or TrencF_ MMENTS: " - Exact location of testhole to be provided by landowner I st Performed By!!,arold rain. .Tr n-...,, r ._..�__ ��T///IIJ/'•`� �'-'"