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Home My WebLink AboutRABBIT CREEK VIEW & HEIGHTS BLK 4H LT 21ARabbit Creek View & Heights Block 4H Lot 21A #020 - 551-35 MUNICIPALITY OF ANCHORAGE MEMORANDUM Date: June 10, 1991 TO: Accounting and Budget, DHHS Fourth Floor FROM: On-site Services, DHHS Fifth Floor SUBJECT: Request for Refund - Account # 2570-9426 Please make arrangements for the following refund. The applicant has decided to go thru the platting.procedures prior to obtaining his sewer and well permit. Thank you. High, Phukan & Sorensen Consulting Engineers 2702 Gambell Street, Suite 103 Anchorage, Alaska 99503 Lot 20 and 21 Block 4 Account $ 2570-9426 Amount $90.00 Receipt $22786/3083 Rabbit Creek Heights Subdivision Laura J. Montgomery On-site Services o RFORMED FOR: SOILS LOG -- PERCOLATION TEST LEGAL DESCRIPTION:~,(~)7- Z~z~,4~,,,~f,~'/T'C~'~,,,//z~, ownship, Range, Section: T~f,/~ -.-! ,4' SLOPE SITE PLAN :~-/0. 7-,~FL~-,~/.'/O,~'.-,:/.,v'/c ~' 1 2 3 5 6 7 8 9- 10- 11- 12- 13- 14 15 16 17 18 19 20- O~.~PTH COMMENTS WAS GROUND WATER ENCOUNTERED? $ L IF YES, AT WHAT 0 DEPTH? p E Deptll ID Water Allot htOaiLori~? Dale: Time Time Water Drop ~12G/91 /o,'zo / " /0; ~0 /OMI~, / 9 ~ ~, 1~7~ - PERCOLATION RATE ~, ~/ [rmnutesnnchJ PERC HOLE DIAMETER TEST RUN BETWEEN -- '~'~ FT AND '~' ~ F1 ACCORDANCE WITH ALL STATE AND MUNiCiPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: 72-008 {Rev. Septe~er 28~ 1978 John L~nbe 4303 North Star Anchorage~ Alaska 99503 Subject: Lot 21 Block 4 Rabbit Creek Heights Subdivision RE~ Supplemental to letter dated 9/25/7S There is one area on the subject lot which appears acceptable for on-site sewage dispsoal if fill and insulation are installed per sub~aitted diaqrams. This depart~%ent would allow installation if water level mDnitoring as requested in our former letter indicates a stable water table condition. If there are any questions, please contact this office at 264-4720. Sincerely, Les N. Buchholz, R.S. Senior Environmental Specialist September 25, 1978 John M. Lambe 4303 North Star Anchorage, Alaska 99503 Subjects Lot 21 Block 4 Rabbit Creek Heights Subdivision Soil analysis submitted to this department indicate ground water at shallow depths in all test holes. The water depth ranges from 3.5 feet to 5 feet 9 inches. Since the Rabbit Creek Heights area is an area with a history of ground water problems, the existing levels of ground water may not be representative of "seasonal highs". Additionally, the poor absorption characteristics of the soil indicate a relatively short life expenctancy for the absorption area. The remoteness of the lot makes the relief from public sewer line a ten(10) to twenty(20) year future project. This department mandates, through ordinance, that sewer absorption systems be four(4) feet a.bove the ~ seasonal water table. Since the water table in one testicle is at 3 feet 5 inches, the installation of on-site sewage disposal could not be allowed. Water in other test holes is at a greater · depth, however, there is no guarentee of the current level being the seasonal high. Therefore, before considering any installation on the lot, the water table should be monitored through April and May and the results reviewed. If there are any questions, please contact this office at 264-4720. Sincerely, Les N. Buchholz, R.S. Senior Environmental Specialist U~B/IJw JML John M. Lambe, P.E. 4303 North Star Street Anchorage, Alaska, 99503 907-279~8056 N~; PHONE NUMBER 907-276-~113 September 22, 1978 Marshall & Associates 515 F Street Anchorage, Alaska 99501 Attention: Doug Klug Subject: Lot 2±, Block 4, Rabbit Creek ?eights Gentlemen: At your re%~est, we have ?er~ormed ~re!:iminary s'.~iis exploration on L.~t 21, Block 4, Rabbit Creek ~eights Subdivision, to provide soils information to the Munici}'a~ity of Anchorage Department of E~]vironmenta! Quality (DE;.) s bh'~ they m~ght evaluate the site in regard to its suitab_ii~ by f:~r development of on-site waste water soil absorption systems. Three test holes were drilled for this purpose ':,'ith the re ul~s presented on plates two. through four. All soi!~ ¥:ere [~is[~aiiy c!sssif~ed in the field according to the "Uni£ied Soils C!assi~'ie~tion System" presented on plate seven. Pursuant to preliminary ~iscussion with Mr. Les Bucholz of the Department of Mnvironmentsl Qua!ity~ preliminary topographic information was ~Iss requireJ to be pravided because of the steep terrain and high '.'.'ater table. This information and the locations of the test holes are ~resented on plate one. To aid the Municipal Engineers in their deliberations, we also designed a soil absor?ti~n system which should meet State and Municipal requirements. Schematic sketches of this system are presented on i~!ates five an{i si×. ~i...wever, because of the shallow water level and relatively steel: terrain even with DEQ approval of the slte~ it will be very important to carefully Page 2 Marshall & Associates 515 F Street Anchorage, Alaska 99501 evaluate the horizontal and vertical locations of any proposed improvements on the site, and carefully design, construct and inspect the installation of the septic system to suit the specific improvements. At the time of writing, we are discussing the site and possible improvements in your behalf with the Municipal engineers and sanitarians. As you recall, preliminary discussions began September 13, 1978 and will continue until a definite decision is reached. We will advise you of the meeting dates for your continued active participation, as desired. We trust the foregoing is sufficient to your immediate needs. ?,~ile intended to be comprehensive~ it is n~t necessarily exhaustive of the possibilities. Therefore should questions arise or if ~e p.~ease f.~e.., free to .... 11. can be of further service~ 1~ ~ ~ '~ ~ Very truly yours, John M. Lsonbe, !~.E. Civil Engineer 4.gS~+-E Attachments: Plate One,,.,.,..,o,,,,o.,o,o.?reiiminary Topography Locations of Test Holes ]~lates Two through F~ur.,.....Soils Logs & Percolation Tests Plates Five and Si'x'...[.....,..Absorption System Schematics Plate Seven....,.........o....Unified Soils Classifi- cation System JML/kg MUNICIPALITY OF ANCHORAGE DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION Pouch ~'650, Anchorage, Alaska 991502 ~76-~22~, SOILS LOG - PERCOLATION TEST J~. SOILS LOG [] PERCOLATION TEST EGAL [ T~~ ~, ~ SLOPE S~TE PLAN '~.- WAS GROUND WATER .~ ENCOUNTERED? 14- 15- 16- 17- 18- 19- 20- Readir~g Date - .Gross Net Depth ~o Net Time Time Water Drop PERCOLATION RATE (minute$/inchJ TEST RUN BETWEEN ET AND FT ;OMMENTS ~ERFORr,4ED BY: MUNICIPALITY OF ANCHORAGE DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROT£CTION Pouch 6-6.50, Anchorage, Alaska 99602 ~76-2227 SOILS LOG - PERCOLATION TEST SOILS LOG PERCOLATION TEST 1 2 3 4 5 7 SLOPE SITE PLAN 10 WAS GROUND WATER '~-~_.. S L 1 I ENCOUNTERED? ~ ~ 0 14 15 't6 17- 18~ 20- PERCOLATION RATE ~.~(~.) ' [minutes/inch) TEST RUN BETWEEN , FT AND -- FT MUNICIPALITY OF ANCHORAGE DEPAI~TMENT OF HEALTH AND ENVIRONMENTAL PROTECTION Pouch 6-650, Anchorage, Alaska 99502 276-222! SOILS LOG '= PERCOLATION TEST DEPTH ,5- 7 8 9 10 ll 12 13- 14- 15- 16--- 17 18 19 20 OMMENTS J~ SOl LS LOG PERCOLATION TEST SLOPE ~ITE PLAN WAS GROUND WATER ENCOUNTER'ED) Readln9 Date- - Gross Net Depth to Net Time Time Water Drop (minutes/inch] PERCOLATION RATE TEST RUN BETWEEN ...... FT AND ~. FT