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Home My WebLink AboutEND OF THE ROAD S12460 Onsite File End of the Road Lt 2 #512460 Cir ! nq . 0 'General Contactor James"Jay" Crewdson, P.E. Email:CELLC.1@outlook.com Cell/Text: (907) 280-9493 Fax: (907) 688-2295 Civil:&EnvironmentalEngineering June 26, 2019 DHI Consulting Engineers 3705 Arctic Blvd. Suite 993 Anchorage,AK 99503 Reference: Subdividing End Of The Road, Lot 2 MOA Case#S-12460 Soils Testing, Drinking Water Availability and Nitrate Study Final Report 1. Soils Testing:Two (2)soils test holes,TH1 and Th2,were completed on May 21, 2019. 7-Day groundwater monitoring at the test holes was completed on May 28,2019. The test holes are located in the northwestern quadrant of Lot 2 in End Of Road subdivision and are shown on the associated survey and/or engineering drawings submitted in the application for subdividing the lot. The following is a summary of the soils logs in Appendix A. Test Hole Depth (ft) 7-Day Groundwater Elevation (ft) Percolation Rate (mpi) TH1 12 10.5 < 1 TH2 16 14 < 1 2. Drinking Water Availability and Nitrate Study:The following is a summary of the wells completed after the subdivision was platted. Additional information for wells in the local area (updated version of the original well summary submitted for the End Of Road preliminary plat) is shown in Appendix B. Per the water well information summarized in this report,the local drinking water aquifers appear to have enough capacity to adequately supply the proposed well without impacting existing wells in the area. Legal Description Depth (ft) Static(ft) Yield (gpm) N (mg/L) End Of Road, Lot 2: 155 42 6 End Of Road, Lot 3: 247 100 3 —_��: ��`` ... 4 k p •• . S Please feel free to contact me if you have any questions. ft• , �� •• 9 � Than u, * 4 *, / 6Jawe,nt��,l/1 ) ,, aures A. Crewdson o "Jay" Cr 11527 ' .n, P.E. • `1 %/211‘ �FO•6 d6- ie-- 1 PROFESSION PO Box 671389 • 18368 Amonson Road • Chugiak,Alaska 99567 Legal Description Static Water Level Depth of Well Production Rate, N Hiside North Home Tract 42 feet 66 feet 6 gpm Hillside North#1 Lott 150 feet 410 feet 5 gpm N b Hillside North#1 Lot2 162 feet 200 feet 8 gpm Hillside North#5 BIk3 Lot4 95 feet 205 feet 4 gpm 3,39 Hillside North#5 Blk3 Lot5 73 feet 120 feet 6 gpm Hillside North#7 BIk4 Lot2 27 feet 365 feet 4 gpm Hillside North#7 Blk4 Loi.3 45 feet 107 feet 5.4 gpm 4, 1 Hillside North#7 Blk4 Lot4 88 feet 427 feet 3 gpm a 9 3 Lem' 24 Hillside North#7 Blk5 Lot2 47 feet 245 feet 30 gpm 6,7i 1 Hillside North#7 Blk5 Lo13 50 feet 340 feet 3 gpm 1 ,3 Hillside North#8 Blk4 Lotti 42 feet 61 feet 50 gpm y, cia Hillside North#8 Blk5 Lot4 55 feet aQ' fl 60 feet�� 12 gpm Taiga Lot'. 119 feet 220 feet 5 9Pm 103,9 Taiga Lot6 60 feet 190 feet? 8 gpm 13 m z v 5< 0o ' - N N Al O I. 01 1S �r563L1i '. 0/ r 0CO al°1 i, Co o • 4. ti O II I 0 11) N I \ S8: '0" ,. '5•.97 4/11 "IP . r0". ':_E-1. ' I— I I 4 r' © CO H H / \ o ^1 LEACH FIELD // _ � NN/ //^ J 1 I \x\ \ / / / V D \\ \ / I - \\ \ �� pF A.q.� \ \ I 00 =,`Q'••• ••�S . \\\ EXISTING HOUSE 4- I N if &:49TH ;' •y 1 \ \\ ''�, /�6•••� • ... • \ \ 70., •" 0•• •••••• •••• • •• f • ,DENNIS )EE H �I k lfr WELL .'1. • ` r 0 �• eb.•••CE 5807.••• `-'4r 100 I I I0 1 I00 200 /to •••••••• _\ 4 I I 1 [ I 1 1 + d�ufess� • 1..\w slob. Distances are shown in feet. DHI CONSULTING ENGINEERS, LLC END OF THE ROAD Arrrlf. CIVIL • SURVEYING PLANNING 1�v+©'lib Telephone: (907)944-1985 LOT 2A '''.1.0410"6" 9705 9705 ARCTIC BLVD. 0 SUITE 993, ANCHORAGE, ALMA 99503 SEPTIC MAP W.O. COMP. FILE SCALE DATE 18200 * 1"=100' 6-27-19 N AEXISTING HOUSE �,, ,.,,4- so' 0 r rWELL LOT 1 0 LOT 4 Lam. NO HOUSE Pi 00 - 0o LJ o U LIU Oo Z - �A'25 A9 `N 0� w 0 - 315 P I P 56 PROP. WELL 1 a co a / co 0 vjJ s LOT 2A I n �N 5.16 AC. 0 cV N. NO HOUSE a LOT 6 NO OT 5 S88'43 48 W = 0 "� O 5i+tttt 159.93 513g 9� LOT 2B 4Tj D kJ 7.54 II o m " •' -.J' �' O LEACH FIELD /7-\\I ? -0 -...:......,•:,\ �� D 1 i)j O 'U eA CK ''OCF •alb . il ' ' . � rj � \ I C//� \\ II WELL uxir.._, LOT 5 'cc, 0 • o .. \ _0 X X ; NO HOUSE i' N N c0 m_ LOT 4 LOT 3 D z 'o J 0 NO HOUSE 0100' ) 0 _ 0 D C EXISTING HOUSE /WELL ��`\\ 1- m �j P�� OF ALgs�4 / ,.._-_— - -- 435.00 '`'C) :49TH -?c1.1 .� j CHUGACH STATE PARK S 89'58'30" W • 0. . •. ...... •... .• .. ;DENNIS REE H ; ti/ s CE 5807 ••.±,,•.. ,:r 1�er .. •.•• ,. 0 200 400 4II 4;;f;:°: I I Distances are shown in feet. DHI CONSULTING ENGINEERS ernii0 CIVIL SURVEYING ° PLANNING WELL MAP via& j Telephone: (907)344-1385 Fax: (907)344-1383 3706 ARCTIC BLVD. ° BUTTE 933, ANCHORAGE, ALASKA LOeos LOT 2A & LOT 2B w.° 18200 COMP1.8200 COM MEET SCALE,"= 200' DATE 1 1-25-18 END OF THE ROAD SUB GRID: 2143 APPENDIX A ALLC 112279 Municipality of Anchorage '�+�q��i1� Development Services Department �''-`� • On-Site Water and Wastewater Section /� _� �/+� • f * 4700 Elmore St. 004:49 , / *�� k i P.O.Box 196650 Anchorage,AK 99519-6650 4///i www.muni.org/onsite (907)343-7904 10j . r ; 011827' Soils Log - Percolation Test Performed For: DHI Consulting Engineers Date Performed: 5/21/2019 Legal Description: End Of Road SID S-12460 Township.Range,Section: Slope Site Plan TH1 Depth (Feet) 1- S E SU tVe`y/gN&, 2- 0G 1ZA\�,l=Irl GS 3- - 4- _PERC 5- 6- 7- GW 8- WAS GROUND WATER 9- ENCOUNTERED? 10- . �ilkelpLlTf IF YES,AT WHAT DEPTH? � 1 ?0 .ca&Psi wA io Depth to Water After /61 » P 11- Monitoring? J 12 - BOA Date -SP 13- 14- Reading Date Gross Time Net Time Depth to Water Net Drop 15- S/ ( la 3O SecoIn di 16- t 17- t 18- 19- 20- PERCOLATION RATE .x�Q (minutes/inch) PERC HOLE DIAMETER 6`t TEST RUN BETWEEN q FT AND FT COMMENTS PERFORMED 8Y: Crewdson Engineering LLC ( --"C- 044/V1os Cr?,LAT LKERTIFY THAT THIS TE T WrS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: S 43 I/ig This soils log is for DHI Consulting Engineers express use only. All other users shall obtain written permission from Crewdson Engineering LLC. ALLC 112279 Municipality of Anchorage Development Services Department ,��+ On-Site Water and Wastewater Section . ,. f * 4700 Elmore St. P.O.Box 196650 Anchorage,AK 99519-6650 mr/ www.muni.orq/onsite (907)343-7904 A ( 0e C11627 Soils Log - Percolation Test 1>, '` Performed For: DHI Consulting Engineers Date Performed: 5/21/2019 Legal Descnption: End Of Road S/D S-12460 Township,Range,Section: Slope Site Plan Depth (Feet) 1- CG 2 SEE SuRVEV/EtIG. 3- D RA WZt1 Grs ¢ PERC 5- 6- 7- 8- WAS GROUND WATER Y 9- 6A44) ENCOUNTERED? 10- IF YES,AT WHAT DEPTH? Depth to Water After tt��((I 11- Monitoring? t`1 12- Date:S/d}31 i q 13- Gt20VN.D1JA7cR t sEkp 14- Reading Date Gross Time Net Time Depth to Water Net Drop 15- fay ,q SUseco►�,ds 6„ 1. Ekmi ti 17- i( it 18- 19- 20- PERCOLATION &19- 20- PERCOLATION RATE <1,0 (minutes/inch) PERC HOLE DIAMETER 6!I TEST RUN BETWEEN L FT AND FT COMMENTS PERFORMED BY: Crewdson Engineering LLC I .310.m Q,!` Lea W tc L\ CERTIFY THAT THIS TESD W PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: •/'/- This soils log is for DHI Consulting Engineers express use only. All other users shall obtain written permission from Crewdson Engineering LLC.