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HomeMy WebLinkAboutUS SURVEY 3202 LT 20 T10N R1W SEC 10/15 Municipality of Anchorage Page DEPARTMENT OF HEALTH AND HUMAN SERVICES ENVIRONMENTAL SERVICES DIVISION P.O. Box 196650 · Anchorage, Alaska 99519-6650 · Telephone: 343-4744 On-Site Wastewater Disposal System and/or Well Inspection Report Permit Number: ~?(..,0' ~.~ 0 I1<¢ PIDNumber: 0~00 ~,~ N~m.:~ ~C~ ~ e I P. P~c ~r~ Wastewater System: ~ New ~ Upgrade Address: p. o. ~x ~o~ ~,r~oo~ ~ ~7 ABSORPTION FIELD Phone: ~--I~ ~No. of B~rooms: ~ Deep Trench ~ Shallow Trench DBed ~Mound DOther LEGAL DESCRIPTION sog Bating: Total Depth from original grade: Lot; Block: Subdivision; De~th to pipe bottom from odginal grade: Gravel depth beneath pipe Township: I Range: ~ Seclion: Fill added above original grade: Gravel length: I I I' WELL: ~ New ~ Upgrade Gravelwidth: Number~flines: D~s~ancebetweepli~es: Classification (Private, A,B,C): Total Depth: Cased To: Totaf absorption area: Pipe material: ~ Driller: Date Drilled: Static Water Level: Installer: Date installed: (ieid: I O GPM Pump Set at~ ~ Ft. Casi.g He[BM~ ,Ab°ve¢ Ground;Ft. TAN K SEPARATION DISTANCES ~s.~tio ~ Holding U S.T.~.P. TO Septic Absorption Lift Holding Pub~ic/Privat( Manufacturer: Capacityin gallons: From Tank Field Station Tank Sewer Lines ~ Or~ T~ Material: Number of C~mpartments: Surface _ Wat~ > ~OO'>f~' - - ; LIFT STATION ~,~. Lot Size in gallons: IManufacturer: Curtain ~ Pump Make & Model ~ Electrical Inspections performed by: BENCH MARK ENGINEER'S Inspections performed by: ¢/~ ~f 7~c~ %u~ Dates: 1st /¢/a~/)~ ~ ............... Department of Health and Human Services approval ~,,..~. -, CE-358~ Reviewed and approved by: Date:ff-f~ -~3 ~ . .k 72-013 (Rev. 9/91) MOA 25 PERMIT ,/f: SW930118 LOT 21 , -'., / / / / / ! ! \ \ \ ,'" \ /~DOUBLE '~ SEPTIC TANK % "'--. ~ 5' WIDE x 63' LONG ~....-~ ~ SOlE ,A, RS. DRAINFIELD / '~ SW,N T,ES % FROM: COR"A" COB"B" COB"C" C.O. 'T' 118' 143' WELL 79' 84' LOT 20, USS 3202 WELL AND SEPTIC SYSTEM AS-BUILT SITE PLAN FLATTOP TECHNICAL SBRVICBS I INCH = 50 FEET 14530 ECHO STREET DRAWN BY TFM ANCHORAGE, ALASKA 99516 NOV, 1993 NOTE: THIS IS NOT A SURVEYED PLAT. ALL LOCATIONS SHOWN ARE APPROXIMATE. PERMIT i~lO: SW930118 PID NO: 09002204 PAGE 3 0F3 . - - - -TBM 100.0' INV. 93.4- -, 1000 GALLON SEPTIC TANK · - -INV. 93.0 5' WIDE DRAINFIELD , W. 2.2' GVL. BELOW PIPE' INV. 90.9' - - ' BOT. ELEV. 88.7'- - T.H. #4 M.T. DRY BOT. ELEV 80.0 LOT 20, USS 3202 SEPTIC SYSTEM INSTALLATION AS-BUILT CROSS-SECTION FLATTOP TECHNICAL SERVICES 14530 ECHO STREET ANCHORAGE, ALASKA 99516 NO SCALE DRAWN BY TFM NOVEMBER, 1993 M-W DRILLING, Inc. P.O. Box 110378 · 10330 Old Seward Highway (907) 349-8535 ANCHORAGE, ALASKA 99511 DRILLING LOG Well O~er Michael Packard Use of We1! Domestic I~cation (address of: Township, Range, Se~t~on, ~f known; or d~stance main road Lot 20 USGS #3202, Girdwood, Alaska Size of casinf 6" Depth of Hole 62 feet Cased to 62 feet Static water level 36.75 ft. (A~_ :t~ ~ow) land ~. - ~ surface. FinCh of well (check one) open end (X Screen ( ); Perforated ( ~' ~ ~, Describe screen or peroration. ~, ~ Well pumping test et uraw~own from · 0 Date of completion ctober Depth in feet from ground surface 0 2 TO. (minute) for, No te WELL LOG ); hours with lO0%, ~. Well "dry grouted" with 3 bags Emvirochips. ~ df formations penetrated, size of material, color and hardness ;y/sandy with sproadic boulders io~ad~c silt lenses 2 TO 5 ~ ~; 5 24 TO _.24 TO 3]. A ~v, 31 .TO 38 S 38 .TO 62 TO_. TO. _TO_. TO_ TO_ TO__ TO_ TO 1 -- CUSTOMER PAGE 1 OF 1 MUNICIPALITY OF ANCHORAGE DEPARTMENT OF HEALTH AND HUMAN SERVICES P.O. BOX 196650, 825 "L" STREET, ROOM 502 ANCHORAGE, ALASKA 99519-6650 ON-SITE WELL AND WASTEWATER DISPOSAL SYSTEM (UPGRADE) PERMIT PERMIT NUMBER:SW930118 DESIGN ENGINEER:~ & G ~NGI~2Ri~~[~h~-xuU OWNER NAME:PACKARD MICHAEL D OWNER ADDRESS:P. O. BOX 908 GIRDWOOD, ALASKA 99587 DATE ISSUED: 5/24/93 EXPIRATION DATE: 5/24/94 PARCEL ID:09002204 LEGAL DESCRIPTION: US SURVEY 3202 LT 20 LOT SIZE: 108900 (SQ. FT.) NUMBER OF BEDROOMS: 3 THIS PERMIT: 3 THIS PERMIT IS FOR THE CONTRUCTION OF: DISPOSAL FIELD / WELL SYSTEM ALL CONSTRUCTION MUST BE IN ACCORDANCE WITH: 1. THE ATTACHED APPROVED DESIGN. 2. ALL REQUIREMENTS SPECIFIED IN ANCHORAGE MUNICIPAL CODE CHAPTERS 15.55 AND 15.65 AND THE STATE OF ALASKA WASTEWATER DISPOSAL REGULATIONS (18AAC72) AND DRINKING WATER REGULATIONS (iSAACS0). 3. THE ENGINEER MUST NOTIFY DHHS AT LEAST 2 HOURS PRIOR TO EACH INSPECTION. PROVIDE NOTIFICATION BY CALLING 343-4329 OR 343-4681 AFTER BUSINESS HOURS 4. FROM OCTOBER 15 TO APRIL 15 A SUBSURFACE SOIL ABSORPTION SYSTEM UNDER CONSTRUCTION DURING FREEZING WEATHER MUST BE EITHER: A. OPENED AND CLOSED ON THE SAME DAY B. COVERED, SEALED AND HEATED TO PREVENT FREEZING 5. THE FOLLOWING SPECIAL PROVISIONS. SPECIAL PROVISIONS: RECEIVED BY: C. ~ DATE: ISSUED BY: ~~ DATE: THEODORE F. MOORE, P.E. PH: (907) 345-1355 14530 ECHO ST. May I1, 1993 ~CHORAGE, ~KA 99516 M.O.A. DHHS P.O. Box 19-6650 Anchorage, AK 99519 Dear Sirs: The purpose of this letter is to provide the required design narrative in support of our application for a permit to construct water supply and wastewater disposal facilities on Lot 20 of U.S.S. 3202 in Bird Creek. Soils logs, perc test results, a site plan, design drawings and specifications are enclosed for your review. The proposed system will be constructed in the vicinity of test hole 4/4. As can be seen from the soil logs for test holes 4/4 and #4A, the native material between 1 foot and 5 feet below ground level has a measured perc rate of 3 minutes per inch. Based on this measured perc rate, the required soil application rate specified in the wastewater ordinance is 1.2 gpd/sq.ft. The proposed design is slightly conservatively based on a soil application rate of 1.0 gpd/sq.ft., which results in a required absorption m'ea for this 3 bedroom residence of (3 x 150)/1.0 = 450 square feet. Utilizing the specified length factor of 0.7 for a five foot wide drainfield with 2 feet of sewer gravel beneath the horizontal distribution pipe, the 450 square feet of required absorption area is achieved by the proposed 63 foot long drainfield with the bottom of the sewer gravel at 3 feet below ground level. A site for an equivalently sized replacement dralnfie!d is also shown on the site plan. As shown on the soil logs and site plan, the topography in the proposed drainfield area is a broad, low spur dropping off on three sides to poorly drained m'eas. Starting approximately 20 feet SW of the proposed drainfield the land slopes down at 35% for a total vertical drop of approximately 10 feet. Because of the small vertical extent of this slope, we feel the proposed 20 foot setback will ensure that no effluent is able to daylight out of the side of this slope, and accordingly We are requesting a vmiance from the normally required 50 foot setback. The proposed project will have no impact on present or future water supply and wastewater disPosal systems serving adjacent properties, nor will it have any impact on reserved space/surface and subsurface, or on drainage. The owner, who has experience operating eaxthrnoving equipment, proposes to do the installation himself. Please give me a call at 345-1355 if you have any questions on this submittal. cc: Michael Packard Sincerely, Ted Moore, P.E. -.m,~ .~c~mc¢~ 14530 Echo Street Anchorage, Alaska 9951 PLAIq Vl~p/ 1]' = I0'-0" S~&TION A-A SEPT I C_ S V$ T6M pi_AN ~ X-SI!:(.TION Flattop Technical Service 14530 Echo Street Anchorage, Alaska 9951 Flattop Techn~al Serv~es 14530 Echo Street, Anchorage, AK 99516 Phone (907) 345-1355 Lot 20, USS 3202 Bird Creek Wastewater disposal system installation Specifications 1.0 General: 1.I The scope of the project consists of installation of a 1000 gallon septic tank followed by 63 lineal feet of 5 foot wide soil absorption trench containing 2 feet of sewer gravel beneath the horizontal distribution pipe, and a total thickness of 2.5 feet of sewer gravel. 1.2 Construction shall be as depicted on the approved site plan and design drawings. Minor' deviations from these drawings may be allowed or required by the engineer conducting the inspections. All construction procedures and material specifications shall conform with Municipal and State requirements. All separation distances shall be in confmrnance with Municipal requirements, unless specifically waived. 1.3 The installer shall be responsible to obtain any necessary utility locates, and to work around any buried utilities. 1.4 The installer shall provide adequate cover material and rough grading over all system components to ensure that proper drainage is achieved after settlement and that there are no residual depressions. Insofar as possible the installer shall minimize damage to trees and existing lawn areas. 1.5 Unless specifically agreed otherwise, the homeowner shall be responsible for finish grading after the soil is compacted, as well as placement of topsoil and reseeding all areas disturbed by the construction. 2.0 Septic Tank: 2.1 The septic tank shall be a 1000 gallon Municipally approved tank, and shall be set level on undisturbed soil. Each compartment shall be equipped with a watertight manhole cover and a 4" cleanout. If the tank is buried less than 4 feet, it shall be insulated with 2 inches of approved burial type, rigid insulation. 2.2 All pipe connections to the tank shall be equipped with waterproof mechanical couplings. The waste line from the residence to the septic tank shall have a minimum slope of 1/4'" per foot, and the waste line between the tank and the soil absorption system shall have a minimum slope of 1/8" per foot. A cleanout shall be installed within 5 feet of the building foundation, and a double cleanoi~t shall be installed within 5 feet downstream of the septic tank. All portions of the waste line which are buried less than 3 feet shall be insulated with 2 feet of rigid, burial type insulation and covered with at least 2 feet of soil. 3.0 Soil absorption system: 3.1 The soil absorption system shall be constructed by excavating a 5 foot wide by 63 foot long drainfield parallel to the existing ground contours, to a total depth of 3 feet below original ground level. 3.2 The bottom of the excavation shall be level. Any compacted or smeared surfaces shall be raked to allow proper infiltration. 3.3 A total of 2.5 feet of approved sewer gravel shall be placed in the bottom of the excavation with the perforated distribution pipes laid level such that the pipe inverts are no less than 2.0 feet above the bottom of the sewer gravel. Sewer gravel shall be 0.5" - 2.5" screened gravel, with less than 3% passing the #200 sieve. 3.4 Monitor tubes and cleanout pipes shall be of 4" diameter and installed in the locations shown on the design drawings. The portion of the monitor tube extending through the sewer gravel shall be perforated. 3.5 Approved filter fabric shall be placed over the entire top surface of the sewer gravel. A minimum of 2 feet of soil cover is to be placed over the filter fabric. If the soil cover thickness is less than 3 feet, two inches of rigid, burial type insulation is to be placed over the entire top surface of the gravel, in addition to the filter fabric. 3.6 The top surface of the cover material shall be raised a minimum of 6 inches higher than the surrounding terrain to allow for subsequent settlement, and shall be graded to smooth contours. Fill slopes shall be no steeper than 3:1. 3.7 All areas disturbed by the construction shall be covered with 4 inches of topsoil and s¢eded with an approved grass seed to promote rapid revegetation. 4.0 Inspections: 4.1 A total of 4 engineering inspections will be required during the course of the project: (1) initial stakeout with the installer to establish the location of the system and to discuss the plans, specifications and construction procedures, (2) after the native material has been excavated to expose the infiltrative surface to ensure that it is level and at the right elevation, and conforms with the soil test information, (3) after the sewer gravel is in place and the distribution pipes have been laid and connected up to the septic tank, but prior to placement of insulation or filter fabric, and (4) after final backfill and grading is complete. The septic tank requires one inspection after it is set level and the piping connected, but prior to backfill. This inspection may be incorporated with any of the above inspections. 4.2 The installer shall coordinate the timing of the inspections with the engineer sufficiently far 'in advance to ensure the availability of the engineer. PERFORMED FOR: LEGAL DESCRIPTION: 1 2 3- 4- 5 6 7 8 9 10- 11 13 14 15 16 17 1~8 - J D - 20- COMMENT8 Flcd[$~ Techhlccd Sei~cices 14530 Echo Sfreet A-nchorcrc~e, Al{xsk(~ 995] ~ Municipalily of Anchorage DEPARTMENT OF HEALTH & HUMAN SERVICES 825 "L' Street, Anchorage, Alaska 99502-0650 SOILS LOG -- PERCOLATION TEST ~lCAC~el ,"~.. ,~;~..-..~ ~. , % ~ .. .. -t'~>e' / '%~;,' ....... ~ %~e? / DATE PERFORMED: Township, Range, Section: SLOPE SITE PLAN WAS GROUND WA'PER ENCOUNTERED? IF YES, AT WHAT DEPTH? p E Depth to Waler Alter Dloniloring? PI.~'. cR~'),__ Oate: Reading Date Gross Net Depth to Net Time Time {?~ }/~) Water Drop PERCOLATION RATE 3 {minutes/inch} PERC HOLE DIAMETER TEST RUN BETWEEN //'~ FTAND ,~-'.O FT ACCORDANCE WITH ALL STA:rE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: 72-008 (Rev. 4/85) PERFORMED FOR: LEGAL DESCRIPTION: 1 st/ S. 4 7 g ~4 ~7 20- ~laltS~5 Techff[cal Services 14530 Echo Street Ancho~:ac~e, Alaska 99,5~c Municipality of Anchorage DEPARTMENT OF HEALTH & HUMAN SERVICES 825 "L" Street, Anchorage, Alaska 99502-0650 SOILS LOG -- PERCOLATION TEST ']-~s ¢- ~ (¢ ~ 'fA- SLOPE SITE PLAN WAS GROUND WATER ENCOUNTERED? N s L IF YES, AT WHAT DEPTH? pO E 08glh Io W0ter Agar Monitoring? gate: Reading Date Gross Net Depth to Net Time Time (~/'~,) Water Drop PERCOLATION RA1E ~ (m~nules/inch) PERC HOLE DIAMETER TEST RUN SETWEEN ~,-/~' FTAND ~, Z,~ FT ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. ?2-008 {Rev. 4/85) CERTIFY THAT THIS TEST WAS PERFORMED iN DATE: _~'/~¢'~" I% /'~,~ PERFORMED FOR: LEGAL DESCRIPTION: 1 2 3 ~.~,~ 4 5- 6- 7 8 9 10 11 12 13 14. 15- 16- 17 COMMENTS l~latts~5 Te'chh~cal Services 14530 Echo Street Anchoraqe, Alas!ca 99,5~ ¢ Municipality of Anchorage DEPARTMENT OF HEALTH & HUMAN SERVICES 825 "L' Street. Anchorage, Alaska 99502-0650 SOILS LOG -- PERCOLATION TEST -~est~ ~le --g: ~ DATE PERFORMED: Township, Range, Section: SLOPE SITE PLAN , .rr~L 'X WAS GROUND WATER ENCOUNTERED? IF YES, AT WHAT ~" - DEPTH? $~ pO E Oeplh Io Water Alter Moniloring? ?'3~' Date: zf/30[~3 Reading Date Gross Net Depth to Net Time Time Water Drop PERCOLATION FaA] b (minutes/inch} PERC HOLE DJAMETER __ TEST RUN BETWEEN FT AND FT PERFORMEOBY: ~:~t,e~t"$Ll~ 7'¢C~'~[ ._~6~¢. ' ~'ff~ ~ CERTIFYTRATTHISTESTWASPERFORMEDIN ACCORDANCE WITH ALL STA:~E AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: ,~/t'O/'~_~ 72-00g (Rev. 4/85) PERFORMED FOR: FlattS~5 Techhlcal Services 14530 Echo Street Anchoraae, Alaska 995m Municipality of Anchorage DEPARTMENT OF HEALTH & HUMAN SERVICES 825 "L" Street, Anchorage, Alaska 99502-0650 SOILS LOG -- PERCOLATION TEST LEGALDE$CRIPTION: ~.O~* ~.<2j (Z. 5c-, ..~O~ ?f. ~h~t~o ,.749 ;:?.% I · '-",' ........ ., .... DATE PERFORMED: Township, Range, Section: 1 2 3 - H.cc' s~¢/~ '1~ ~ 4- 5- 6- 8 9 SLOPE SITE PLAN m 10 11 12 13 14 15 16 17 18- 19- 20- WAS GROUND WATER ENCOUNTERED? ~r~ IF YES, AT WHAT DEPTH? Depth to Waler Aller Menitorino? Date: Gross Net Depth to Net Reading Date Time Time Water Drop PERCOLATION RATE (minutes/inch) PERC HOLE DIAMETER ~ ~'~, ~['~- TEST RUN BETWEEN FT AND FT COMMENTS NC~ ~,,~.~c '/~¢6~ ~, ~/ ~;~'o~ /o~ ~ ~c~oq o~ o~-~ ~o~/ ~6~. ~x~. PERFORMEDBY: ~l~p Techm(~( ~c, m ~~ ACCORDANCE WITR ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON ~HIS DA~E. 72-008 (Rev. 4/85) CERTIFY THAT THIS TEST WAS PERFORMED IN DATE: ,..C' / FlaltS~5 Te'chh~cal Services 14530 Echo Street Anchoraae, Alas!ca 99,q,~ o- Municipality of A'n~-~orage- DEPARTMENT OF HEALTH & HUMAN SERVICES 825 "L' Street, Anchorage, Alaska 99502-0650 SOILS LOG -- PERCOLATION TEST PERFORMED FOR: ~v~ I C ~1 ¢:~ f FCi. C, J~ CC t'C~ DATE PERFORMED: Township, Range, Section: F ~ ~' WAS GROUND WATER ENCOUNTERED? 14- 15- 16 17 tg SLOPE SITE PLAN YES, AT WHAT DEPTH? Oepth to Waler Alter Moniloriflg? Il'- 0 ~ Dale: Reading Date Gross Net Depth to Net Time Time (' t~t'~) Water Drop PERCOLAIION FtA1E ~' ¢~'O~ (minutes/tachI PERC HOLE DIAMETER T. H,~ TEST RUN BETWEEN ~**O FTAND 6.~ fit PERFORMEDBy: F/~p ~echnt~f W~c, ~ ~~ CERTIFYTHATTH[STESTWASPERFORMEDIN ACCORDANCE WITH ALL STA~E AND MUNICIPAL GUIDELINES iN EFFECTON THIS DATE, DATE: _ 72-008 (Rev, 4/85)