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Home My WebLink AboutBREWINGTON Tracts D-1 & D-2 Plat# 96-94 S-9949 MUNICIPALITY OF ANCHORAGE Department of Health and Human Services P.O. Box 196650 Anchorage, Alaska 99519-6650 Date: July 2, 1996 To: Zoning and Platting Division, CPD From: ,,~j0~_.,mes Cross, P.E., Program Manager, On-Site/Water Quality / Subject:-- Request for Comments on Cases due 7/3/96. The Environmental Services Division, On-Site Serv'ices Section has reviewed the following cases and has these comments: S-9824A Higgins Estates A soils log with the original stamp and signature of the engineer must be submitted for the test hole on the north half of Lot 31. Areas designated for the original and replacement wastewater disposal systems must be identified and must meet all criteria specified in AMC 15.65. Supporting documentation on water availability must be provided. S-9949 Brewington. If this subdivision is to be served by on-site water and waste water systems, the support information submitted does not satisfy the requirements specified by AMC 21.15 and 15.65. Specific deficiencies include, but may not be limited to: 1. Inadequate soils testing, percolation testing and ground water monitoring to confirm suitability for development using on-site .wastewater disposal systems. 2. Areas designated for the original and replacement wastewater disposal system sites must be identified and must meet all criteria specified in AMC 15.65, including slope setback requirements. 3. Supporting documentation on water availability must be provided. S-9950 Jacq-Horn Manor. Soils logs must have the original stamp and signature of the engineer. Supporting documentation on water availability must be provided. Areas designated for the original and replacement wastewater disposal system sites must be identified and must meet all criteria specified in AMC 15.65, including slope setback requirements. MUNICIPALITY OF ANCHORAGE ECONOMIC DEVELOPMENT AND PLANNING P.O. Box 196650 Anchorage, Alaska 99519-6650 PRELIMINARY PLAT APPLICATION OFFICE USE REC'D BY: VERIFY OWN: Please fill in the information requested below. Print one letter or number per block. Do not write in the shaded blocks. 1, Vacation Code 2. Tax Identification No. ( '~ ( ~\.~ .\{ i/ NEW abbreviated legal description (T12N R2W SEC 2 LOT 45 OR SHORT SUB BLK 3 LOTS 34). 4. EXISTING abbreviated legal description (T12N R2W SEC 2 LOT 45 OR SHORT SUB BLK 3 LOTS 34) full legal on back page. // H/I 1 / Petitioner's Name (Last - First) 6. Petitioner's Representative /// Address ~' ~ ~ 77f~/ Ci~ d~7~ ~ ~ . State Address city ,¢.0 7. Petition Area 8. Proposed 9. Existing Acreage Number Number Lots Lots 10. Grid Number 11. Zone 11 12. Fee $ 13. Community Council B. I hereby certify that(I am)(I have been authorized to act for)the owner ofthe property described aboveand that I desire to subdivide it in conformance with Chapter 21 of the Anchorage Municipal Code of Ordinances. I understand that payment of the basic subdivision fee is nonrefundabte and is to cover the costs associated with processing this application, that it does not assure approval of the subdivision. I also understand that additional fees may be assessed if the Municipality's costs to process this application exceed the basic fee. I further understand that assigned hearing dates are tenta~ve and may have to be postponed by Planning Staff, Platting Board, Planning~Com. mission, or the Assembly due to administrati~ ~easons. ~ ~ Date: _ - _ ~ ~ Signature *Agents must provide written proof or authorization. 20-003 (Rev 6/89)MOA-24 Please check or fill in the following: 1. Comprehensive Plan -- Land Use Classification Residential Commercial Parks/Open Space Transportation Related 2. Comprehensive Plan -- Land Use Intensity Special Study 3. Environmental Factors (if any): a. Wetland 1. Developable 2. Conservation 3. Preservation Marginal Land __ Com mercial/I ndustrial Public Lands/Institutions Dwelling Units per Acre Alpine/Slope Affected b. Avalanche c. Floodplain d. Seismic Zone (Hard,ng/Lawson) Please indicate below if any of these events have occurred in the last three years on the property. Rezoning Case Number Case Number Case Number Case Number Enforcement Action For Building/Land Use Permit For Army Corp of Engineers Permit Legal description for acivertlslng. Subdivision Conditiona! Use Zoning Variance Alpine/Slope Affected · Industrial Special Study Checklist 30 Copies of Plat Reduced Copy of Plat (8'/2 x 11) Certificate to Plat Fee Topo Map 3 Copies Soils Report 4 Copies Aerial Photo Housing Stock Map Zoning Map Water: __ Sewer: Private Wells Private Septic Waiver Community Well Community Sys. Public Utility Public Utility 20-003 Back (Rev. 6t89)MOA-24 Eagle River P.O. Box 773294 Eagle River, AK 995T/-3294 ] n ineerin l~ouis Butera, P.I{. Services (90Y) 69d~-5195 (9O7) 694-3297 July 24, 1996 Jim Cross, P.E. Manager, On-Site Services Municipality of Anchorage P.O. Box 196650 Anchorage, AK 99519 MUNICIPALITY OF ANCHORAGE ~NVIRONMENTAL ~ERVIC~ DIVISION JUL 1596 RECE!VED Re: Brewington, Tract D1 and D2 A subdivision of Brewington, Tract D Dear Mr. Cross' We have conducted a soils investigation tbr the proposed subdivision of Brewington, Tract D into Parcels D-1 and D-2. Both parcels are 10 acres in size, and are located in a low population density area at the end of Eklutna Lake Road. The north half, Tract D-l, is steeply sloped with benches located in areas along the slope. The owner has placed a road to the northeast corner of the lot, and a home-site is located here on a bench area along the slope. We have placed the subdivision test hole (TH) here in order to have it qualify for the future septic system permit. There is enough area here to allow design and placement of a trench system in soil with a 4.7 minute/inch percolation rate, observing all setback distances to change in slope. In addition, on the south half of the lot, the slope decreases to a steady 20%, however, this area was not investigated as the owner wishes to locate his home to the north portion. We are certain that this area would also support leachfield construction based on test holes located on Tract D-2. Tract D-2 contains two test holes. Both would allow septic design and approval, however TH2 is considerably better material. We have applied for a permit to construct a septic system 'for this portion of the existing Tract D. This lot has acceptable slopes though out. A small spring is located where it will not affect the septic area due to large lot size. If you have any questions please call our office at 694-5195. Sincerely, Louis Butera, P.E. \ 1996\96-064^-1,TR. DOC Municipality of Anchorage DEPARTMENT OF HEALTH & HUMAN SERVICES 825 "L" Street, Anchorage, Alaska 99502-0650 SOILS LOG --- PERCOLATION TEST PERFORMED FOR: LEGAL 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 DATE PERFORMED: Township, Range. Section: SLOPE ENCOUNTER ED7 :~ p :-~ s L IF YES, AT WHAT , /::2.~ / O DEPTH? P E OeplhloWaterAller /-~.o / 7/--/-(1~/7 Moniloriflg7 Dal~ SITE PLAN Reading Date Gross Net Depth to Net ~'/"2,4 ~- Time Time Water Drop PERCOLATION RATE 4'7"' ? (m~nutes/mch) PERC HOLE DIAMETER TEST RUN BETWEEN '~ FT AND '~ FT COMMENTS ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. 72-008 (Rev. 4/85) CERTIFY THAT THIS TEST WAS PERFORMED IN DATE: ' Municipality o! Anchorage DEPARTMENT OF HEALTH & HUMAN SERVICES 825 "L" Street, Anchorage, Alaska 99502-0650 SOILS LOG .-- PERCOLATION TEST PERFORMED FOR: LEGAL 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 . (ENGi DATE PERFORMED: 20 Township, Range, Section: SLOPE IF YES, ATWHAT DEPTH? §el~lh to Waler Alter ~ ' Monilormg? ' ? Dale: SITE PLAN Gross Net Deoth to Net Reading Date ~.~j~ Time T)me Water Drop / PERCOLATION RATE /~zc~ (m~nutesnnci~l PERC HOLE DIAMETER COMMENTS PERFORMED BY; ~ ~ I ~ ~ ~ 5 CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: 72-008 IRev. 4t85) Municipality of Anchorage DEPARTMENT OF HEALTH & HUMAN SERVICES 825 "L" Street, Anchorage, Alaska 99502-0650 SOILS LOG -- PERCOLATION TEST PERFORMED FOR: LEGAL 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 i~:'% ,"Z :,: ,~ .;' 7,5 ,,:,, ? ::: DATE PERFC)RMED: Township, Range, Section: SLOPE WAS GROUND WATER ENCOUNTERED? s IF YES, AT WHAT ~) DEPTH? / 2' '/ p E De~th Io Waler Alter Monitoring? SITE PLAN Gross Net DelDth to Net Reading Date ~-/,,)~ ~ Time Time Water Drol3 PERCOLATION RATE //'~ (m,nutesfmch) PERC HOLE DIAMETER TEST RUN ~E~WEEN ¥': ~TAND 0,~ ~T COMMENTS PERFORME~ ~¥: i"I~T N , ~ /Z ~ S ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES tN EFFECT ON THIS DATE. 72-008 (Rev, 4/85) CERTIFY THAT THIS TEST WA? DATE: ,. i .,,. Municipality of Anchorage 825 "L" Street, Anchorage, Alaska 99502-0650 SOILS LOG -- PERCOLATION TEST PERFORMED FOR:R~--~__~2H~'T-~'/ DATE PERFORMED: LEGAL DESCRIPTION:~i~,~.~J,4.,?/A/~-~';~"Q/A~/ Township, Range, Section: SLOPE SITE PLAN 7 8 WAS GROUND WATER ENCOUNTERED? L IF YES, AT WHAT pO DEPTH? /"'~ Oep~h to Wa~er A~er , Moniloring? / ~' o DaLe: Reading Date Gross Net Depth to Net ~_~/~ ~4 ~/--... Time Time Water Drop I O?//~'/?b, z/,,~p .~ zh~ ,, ~ ~ ~; 5~ ,. '//~" 14 17 20 PERCOLATION RATE ~-'/' ? (mmulesnnch] PERC HOLE DIAMETER TEST RUN BETWEEN ~ FTAND 7 FT COMMENTS PE.FORMED BY: ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. 72-008 (Rev. CERTIFY THAT THIS TEST WAS PERFORMED IN DATE: ¢ :" '; PERFORMED FOR: Municipality of Anchorage DEPARTMENT OF HEALTH & HUMAN SERVICES 825 '%" Street. Anchorage, Alaska 99502-0650 SOILS LOG -- PERCOLATION TEST DATE PERFORMED: Municipality of Anchorage DEPARTMENT OF HEALTH & HUMAN SERVICES 825 "L" Street, Anchorage, Alaska 99502-0650 SOILS LOG -- PERCOLATION TEST .... (ENGINEER'S PERFORMED FOR: LEGAL 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 2O W/'TH ~I L-'T (~/..AY~Y I7 DATE PERFORMED: ~:)'~/,~//(~_.~ ' Township, Range, Section: SLOPE WAS GROUND WATER y~...~ ENCOUNTERED? S IF YES, AT WHAT (~ DEPTH? / Z '" p E Oel~lh to Waler After Monilonng? :7, 3 / Dale: SITE PLAN Gross Net Depth to Net Reading Date ,,_~./~,~ ~__,, Time Time Water Drop t ~ ~ ~',o5 /~ ~/>/ ~ ~//~" ,' " ~ ~ ~:Q~ ~ /t/~" ~ ~ ~:/~ I~ ,~ /~f/~" /~I/~" ~ ~ ~:: ~q 10 _~ /S/t~" .,'~,/'//~" PERCOLATION RATE //' '3/ {m,nutes~,nch) PERC HOLE DIAMETER COMMENTS PERPORMED B,,: H ~TN , ~ £,~ ~' ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. 72-008 (Rev. 4/~.5) CERTIFY THAT THIS TEST WAS PERFORMED iN DATE; .r TYP TRENCH DESIGN TRACT D-1 3 BEDROOM = 450 / 1,2 = 325 SF TRENCH LENGTH = 32' UNSUBDIVIDED +30,000 7 ~ ~DGE DF DRIVE~AY ~>:. ~T~i ~W HOUSE GARNER T.. F~x 1o. 0o0 S.F, ~ RESERVE AREA ~ z N 99'48'00' 1321,59' TRACT 10,24 ACRES N 89'49'11' E 112L61' TRACT 0-2 9.79 ACRES N 89'50'~' E i38L61' TRACT C NO KNOWN CURTAIN DRAINS ~ - TEST HOLE · - MONITOR TUBE o - SEWER CLEANOUT -~ - WELL EASEMENT ~- PROPOSED LEACHFIELD SUBDIVISION REVIEW PLAN LEGAL: BREWlNGTON TRACTS D-1 & D-2 OWNER: 13REWINGTON CONTRACTOR: N O7 SCALE 1"=200' A EAGLE RIVER ENGINEERING SER VICES P.O. Box 773294 EAGLE RIVER, Ar<. SSS?? (907) 694-5195 FAX: (907) 694-3297