Loading...
HomeMy WebLinkAboutSAND LAKE #2 BLK 7 LT 20A Municipality of Anchorage Page / of r)EPARTMENT OF HEALTH AND HUMAN SERVICES ENVIRONMENTAl.. SERVICES DIVISION P.O. Box 196650 · Anchorage, Alaska 99519-6650 · Telephone: 343-4744 On-Site Wastewater Disposa~ System and/or Well Inspection Report Permit Number: SL~/ 97¢~?7 PIDNumber:_ 0 II/ ;3' Name: /~°O ~'~ h ~ ~XSO,') Wastewater System: ~' New [] Upgrade Address: 8 9.~ 3 ~7'e~'¢ l '-j-er'ra¢~ .,~r/~ c4o~,~,?e 9~J~; ABSORPTION FIELD INo. of Bodrooms: Phone: ~ ~ -- ~'~ ~ ~ Deep Trench ~ Shallow Trench ~ Bed ~ Mound B Other LEGAL DESCRIPTION s°i'"~'"~o: Total Depth from original grade: Lot: SIock: Subdiv~ion: Depth to pipe bottom from original g~ade: Gravel depth beneath pipe Township: Range: Section: Fill added above original~ grade: Grave] length: Ft. ~ Ft. Number of lines: lB]stance between Grsvel width: WEIL~.. _.._. ~ New ~ Upgrade~¢' ~ Ft. II -- Ft. Classification (Private, A,B,C): Total Depth: Cased To: Total absorption area: Pipe materiah ~-~/~ Driller: Date Drifted: dabcWater Leveh installer: Date installed: ~ / 9 7 I Pump Set at: Casing He[gM Above Ground: Yield: Z¢ GPM -- . Z~,. 3' Ft. TANK SEPARATION DISTANCES ~Septic U Holding ~ S.T.E.P. To Septic Absorption Lift Holding 3ub~ic/Pdvat~ Manufacturer: Capacityin gallons: From Tank Field Station Tank Sewer Lines ~ O~ ~ l Material: Number of Compa~ments: Water >/~, > ~, -- . LIFT STA'rlON ~.~. Lot Size in gallons:~ Manufacturer: Line ~ ~ ~ ~ - Drain Remarks: BENCH MARK Location and Description: Assumed Elevation: ENGINEER'S SEAL Inspections performed by: Ftah~ 7>cb ~c~ Dates:lst. 2/&°l~7 ,~,~o..,~--, .~ Bepartmont of Hoa¢h and 8~man Oe~iees approval ' ~ ' ' ' ' Reviewed and approved by: Date:/2 -5 - ~: ~/~ ' ' '": ~ (Rev, 9/91) MOA 25 PERMIT NO: SW970297 PID NO: 01113250 SWING TIES: FROM: COR. "A" COR. "B" TO: S.T.C.C. "C" 3'1.5' 46.5' S,T. C.O. "D" 39' 51.5' DBL. C.C. "E" 41' 53' TR. C.C, "F" 48.5' 69.5' TR, M.T. "G" 47' 52.5' TR. C.C. "H" 59' 43' BOTTOM EXCAVATION ELEV. BOT. T.H. #1 M.T. ELEV. 85.9' DRY (9/19/97) " PAGE 2 OF 2 ,~~ LOT 21A :' ~ ~oo, WELL \ i ~-,SITE ,FOR REPLACEMENT ,% /', ¢0' LONG SOIL ,,,,'"'"~ ~BS. 'FRENCH WELD~ I~ .)_ LOT 20A "F" SEPTIC TANK PLAN VIEW SCALE: 1" = 30' INV. 1250 GALl_ON 97.0' SEPTIC TANK ,INV. 97.2' PROFILE VIEW ~,,~""~'~, NOT TO SCALE ~ ~...= '~ .... ~"" ~ L, 20A, BLK, 7, SAND LAKE ~2 ~. %. CE- 3589 ..' ,~*~ ...... S-BUILT INSP. REPORT ~e~w~ '~w '~"" ....ee' .e'O~,~,~ FI,A~OI' TECI ~ICAL SER~CI~S SCALE: AS NOTED ~o fe sSI0 ~ 14530 ECHO STREET DRAWN BY TFM ~~ ANCHO~GE, AI,ASKA99516 ~ OCTOBER, 1997 From : RL_PINE DRILL 907 345 ~,202 LOCATION OF WELL IOROUOH LOCATION/SKI:'TCH: 0ct.20.1997 06:15 RH P04 STATI:- OF ALASKA DEPARTMENT 0F NATURAL RESOURCES DIVISION OF MINING & WATER MGMT WATER WELL RECORD ON OS WELL OWNER~ DEPTHS MEASURED FROM:'~easlng top [~Jgroung surface' BOREHOLE DATA: Depth Material Type end Color Frorn To Depth of hole: ~'~ ¢,,~., Depth of casing: ~ ~'/.~ DATE OF COMPLETION It 'It _?.__~, (~'/ DEPTH TO STATIC WATER LEVEL: /,~-- '~;:~_ft below,~t0p of casing [~] ground surface METHOD OF DRILLING:/;~air rotary ~) cable tool ~ other USEOF WELL:~domostlc r~ irri0ation [] monitor [] public supply [~ other CASING STICK-UP: Casing type WELL INTAKE OPENING TYPE: j~ open end {~] screened I~ perforated [] open I~ole Depths of openings: _ to __ ft SCREEN TYPE: Diem: in, Slot/Mesh Size: Length:. GRAVEL PACK TYPE: Volume used: Depth to top: GROUT TYPE; Depth: from ft to ft D EVE LO PM EN T~I~./J, ET H.OJ): Duration: ._ .. ~...~.~ Municipality ~'~ f, after,, ~ __ hfs pump ng_~ __gpm INTAKE DEPTH: ft Horsopowor: _~_ WELL DISINFECTED UPON COMPLETION7 YES ~ NO CONTRACTOR INFORMATION: mg~[ure ot Auth0nzecl Rospreson~twe ~ate 3601 C St, Suite 800 ANCHORAGE AK 99503-5935 Phono [907)762-2~38, Fax {907}562.1384 MUNICIPALITY OF ANCHORAGE DEPARTMENT OF HEALTH i~D HUM~LN SERVICES P.O. BOX 196650, 825 "L" STREET, ROOM 502 ANCHORAGE, ALASKA 99519-6650 PAGE 1 OF ON-SITE WELL AND WASTEWATER DISPOSAL SYSTEM PERMIT PERMIT NUMBER:SW970297 DESIGN ENGINEER:FLATTOP TECHNICAL SERVICES OWNER NAME:CHAMBERS REGGIE I & ICAREN S OWNER ADDRESS:8248 ENDICOTT ST ANCHORAGE, AK 99502 DATE ISSUED: 9/08/97 EXPIRATION DATE: 9/08/98 PARCEL ID:01113250 LEGAL DESCRIPTION: SAND LAKE #2 BLK 7 LT 20A LOT SIZE: 10157 (SQ. FT.) NUMBER OF BEDROOMS: 3 THIS PERMIT: 3 THIS PERMIT IS FOR THE CONSTRUCTION OF: DISPOSAL FIELD /SEPTIC TANK / 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 (18AAC80). 3. THE ENGINEER MUST NOTIFY DHHS AT LEAST 2 HOURS PRIOR TO EACH INSPECTION. PROVIDE NOTIFICATION BY CALLING 343-4744 ( 24 HOURS ) (NOT REQUIRED FOR WELL ONLY PERMIT) 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 SANE DAY B. COVERED, SEALED AND HEATED TO PREVENT FREEZING 5. THE FOLLOWING SPECIAL PROVISIONS. SPECIAL PROVISIONS: RECEIVED BY: ~'~'~_ ~ DATE: ISSUED BY: ~-~~ DATE: 9/6/ 7 OP rIECHNI, .SER IC CIVIL & ENVIRONMENT/tL ENGINEERING · ENERGY CONSERVAllON & ANALYSIS TItEODORE F. MOORE, P.E. 14530 ECHO ST. PH: (907) 345-1355 ANCHORAGE, ALASKA 99516 August 18, 1997 M.O.A. DHI-tS P.O. Box 19-6650 Pmchorage, 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 wastewater disposal facilities on Lot 20A, Block 7, Sand Lake S/D #2, located at 8236 Endicott Street. 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 #1. As can be seen from the soil log, the native material between 3 feet and 16.5 feet is a coarse clean sand with a measured pert rate of less than 1 minute per inch. Despite the rapid perc rate, there should be no need to install additional sand filter material, because the native material is sand already. Using the soil application rate of 1.2 gpd/sq. ft. specified in the wastewater ordinance, this proposed 3 bedroom residence requires a total absorption area of(3 x 150)/1.2 = 375 square feet. The proposed 38 foot long trench design with 5 feet of sewer gravel beneath the horizontal distribution pipe has a total absorption area of 380 square feet. The site plan illustrates a suitable site where a similarly configured replacement trench could be constructed in the future, as needed. The topography of the lot slopes gently towards the north and east at 2 - 3%. The property owner, Mr. Leo Johansson, proposes to do the construction work himself using his own backhoe. Having watched Mr. Johansson excavate the test hole I can attest to the fact that he is capable of constructing the system by himself, subject to the required engineering inspections. The proposed project will have no significant impact on present or future water supply and wastewater disposal systems serving adjacent properties, nor will it have any significant impact on reserved space-surface and subsurface, or on drainage. Please give me a call at 345-.1355 if you have any questions on this submittal. AUG 1 9 Sincerely, Ted Moore, P.E. R 100' (I) TO 100' LOT 3 LOT 4 (VACANT)' SITE FOR'SIMILAR REPL TRENCH LOT 5 (VACANT) ,'SEPTIC 9' ,'LOT 21A ,,SYSTEM,/ ,' o , , WEL[.~ 00, LOT 20A WELL T,H. #1 38' LONG SOIL ABS. TRENCH W. 5.0' SEWER GVL. BELOW PIPE LOT 6 o SEPTIC AREA GAL. SEPTIC 'rANK SYSTEM I LOT 19 WELL; LOT 18 b- O O ~ LOT 5A <BLOCK 2 SUNDI LAKE 8/D NO SEPTIC WITHIN 100' ,' ~ NO SEPTIC WITHIN 100' LOT 4 L20A, BLK.7 SAND LAKE #2 WELL AND SEPTIC SYST, SI'f'E PLAN FLATTOP TECHNICAL SERVICES 1 INCH = 50FE:-ET 14530 ECItO STREET DRAWN BY TFM ANCHORAGE, ALASY. LA 99516 AUGUST, 1997 NOTE: THIS IS NOT A SURVEYED PLA'I-. ALL LOCATIONS SHOWN ARE APPROXIMATE. "A"i--m"38F ,-~ M.T. , c.o.--~..X~__..___ ~ ~ .?,/ ,b ............. ~ ............ :_: ..... ,-k~'-- C.C. 4" DIA D-3034 .... ~ I ~ ~ NON-PERF PIPE/ ,,A,,I,.~ ~% ~ 4" DIA. ASTM F-810 PERF PIPE INSTALL ~C ~ % DOUBLE ] ¢ ] ~ 38' LONG SOIL ABSORPTION TRENCH CLEANOUT ~/ ~- ~I~'~N~%7~E~R¢~I%'~ELOw ~oOO~A,.oN~l C ~1 SEPTIC TANK WASTE LINE _~ FROM HOUSE PLAN VIEW SCALE: 1" = 10' - 0" --CLEANOUT MONITOR TUBE MOUND BACKFILL 12" ORIGINAL GROUND FILTER FABRIC F-810 PERF. PIPE 1/2" - 2 1/2" SEWER GVL. EXCAVATION SECTION "A - A" SCALE: 1" :: 5' - 0" LOT 20A, BLK, 7, SAND LAKE #2 S/D SEPTIC SYSTEM iNSTALLATION PLAN AND CROSS-SECTION FLATTOI TECIINICAL SERVICES 14530 ECHO STREET ANCllORAGE, AK, 99516 SCALE: AS SHOWN DRAWN BY: TFM AUGUST, 1997 Flattop TechnicalServices 14530 Echo Street, Anchorage, AK 99516 Phone(907) 345-1355 Lot 20A, Block 7, Sand Lake S/D #2 8236 Endicott Street Wastewater disposal system installation Specifications 1.0 General: 1.1 The scope of the project consists of installing a 1000 gallon septic tank followed by a 38 foot long soil absorption trench with a total of 5.5 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 conformance with Municipal requirements, unless specifically waived. 1.3 The contractor shall be responsible to obtain any necessary utility locates, and to work around any buried utilities. 1.4 The contractor 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 contractor 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 new 1000 gallon, 2 compartment septic tank shall be Municipally approved 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 he 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 cleanout shall be installed within 5 feet downstream of the septic tank. 3.0 Soil absorption system: 3.1 The soil absorption system shall be constructed by excavating a 38 foot long trench to a total depth of 10.5 feet below original fround level in the vicinity of test hole # 1 3.2 The bottom of the excavation shall be level. Any compacted or smeared surfaces shall be raked to allow proper infiltration. Sand for leveling or se~wing as filter material shall comply with Municipal specifications. 3.3 A total of 5.5 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 5.0 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 12 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 Unless specifically agreed otherwise the homeowner shall be responsible for arranging to have the site finish graded after the backfill material has stabilized, and for placement of adequate topsoil and seed to promote rapid revegetation of all areas disturbed by the construction. 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 contractor 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 rough 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. ITESTHOLF#! J LEGAL DESCRIPTION: DATE PERFORMED: _ PERFORMED FOR: DEPTH (feet) 5 6 7- 8 FLATTOP TECHNICAL SERVICES 14530 ECHO ST. ANCHORAGE, ALASKA 99516 SOILS LOG -- PERCOLATION TEST Lot 2~0_A, BIock~7,~Sand Lake S/D #2 July 31, 1997 Leo Johansson Pt. SM Reddish sandy loam Loose, fluffy ML Whitish sandy silt Dense, caked SM Silty gravelly sand Cohered SP Clean, coarse, gravelly sand Loose, dry Less gravel and cobbles below 10' Still very clean and coarse SLOPE SITE PI.AN L T.H. - ' LOT 20A SEPTIC LOT 19 SYSTEM Depth to Groundwater Date _ No~roundwater 7/31/97 Monitor tube dry 8/13/97 Clock Net Time Percometer Net Drop Date Reading Time (minutes) Reading (inches) -,"/31 5 gallon presoak 3:54:40~ 22 1/2~ Dry 3:54:55 16 3/4 5 gallon re-soak 4:00:40 23 Dry 4:01:15 0~§ 16 3/4 6.25 COMMENTS: PERCOLATION RATE <<1 (minutes/inch) PERC HOLE DIAMETER 12" TEST RUN BETWEEN 8.0 FT AND 6.5 FT Size absorption trench on basis of 1.2 gini/sq, ft. Because native material [s sand, no additional filter material needed. PERFORMED BY FLATrOPTFCHNICAL SERVICES. I .7_~_.~ //'/~ __ ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. CERTIFY THAT THIS TEST WAS PERFORMED IN MUNICIPALITY OF ANCHORAGE DEPARTMENT OF HEALTH & HUMAN SERVICES Division of Environmental Services On-Site Services Section P.O. Box 196650 Anchorage, Alaska 99519-6650 843-4744 CERTIFICATE OF HEALTH AUTHORITY APPROVAL FOR A SINGLE FAMILY DWELLING Parcel I.D.. ~¢ OI / 1.7 2_ 5-O 1, GENERAL INFORMATION Complete legal description Location (site address or directions) ProlS rt '-0w.ner. M, ailing address D~-~ ~--¢~ Mailing address ~1~ Agent ~' ~' F~ ~ Day phone Address = Unless otherwise requested, HAA will be held for pickup. NUMBER OF BEDROOMS: TYPE OF WA'rER SUPPLY: Individual well Community well Public water NOTI=: If community well system, provide written confirmation from State ADEC attest- ing t~ }~le legality and status of system. TYPE! OF WASTEWATER DISPOSAL: Individual on-site Holding tank Community on-site Public sewer NOTE: If community wastewater system, provide written confirmation from State ADEC attesting to the legality and status of system. 72-025 (Rev. 1191) Front MOA~21 5. STATEMENT OF INSPECTION BY ENGINEER As certified by my seal affixed hereto and as of the validation date shown below, I verify that my investigation of this Health Authority Approval application shows that the on-site water supply and/or wastewater disposal system is safe, functional and adequate for the number of bedrooms and type of structure indicated herein. I further verify that based on the information obtained from the Municipality of Anchorage files and from my investigation and inspection, the on-site water supply and/or wastewater disposal system is in compliance with all Municipal and State codes, ordinances, and regulations in effect on the date of this inspection. Name of Firm r/~//~. Address 1~)5-~0 Engineer's signature DHHS SIGNATURE ~ Approved for .'T',,/7//~E Ebedrooms __ Disapproved. Conditional approval for Phone .be,clrq@ms, with the following stipulations: Additional Comments The Municipality of Anchorage Department of Health and Human Services (DHHS) issues Health Authority Approval Certificates based only upon the representations given in paragraph 5 above by an independent professional engineer registered in the State of Alaska. The DHHS does this as a courtesy to purchasers of homes and their lending institutions in orderto satisfy certain federal and state requirements. Employees of DHHS do not conduct inspections or analyze data before a certificate is issued. The Municipality of Anchorage is not responsible for errors or omissions in the professional engineer's work. Municipality of Anchorage DF. PARTMEN. T OF HEALTH .& HUMA. N' SERVICES i Legal Description: A. WELL DATA Well type Log present (Y/N) Total depth Sanitary seal (Y/N) Date of test Static water leve! Well production WATER SAMPLE RESULTS: Coliform G Lo I /t co ~ .Z Date of sample: ~ / I / ~ :~ B, SEPTIC/HOLDING TANK DATA Date installed ~{?-o/¢7 Foundation cleanout (Y/N) Date of Pumpin~ _ ~/.,~, ~ C. ABSORPTION FIELD DATA Date installed ~ / z ~' / ~ 7 If A, B. or C, attach ADEC letter. ADEC water sysmm number Date completed ~ ,//.~- / ,~ 7 Cased to '8'-/¢ Casing height (above ground) F' Wires proparly protected (Y/N) FROM WELL LOG AT INSPECTION 2//5'/¢ 7 13-'7' 'Y .g.p.m. g.p.m. Nitrate Collected by: Tank size / ?_~E,';~¢___ Number of Cornpartrnents P-- Cleanouts (WN). ~' Depression (Y/N) ~'/ High water alarm (Y/N) ~v. Length UO' Width ~ ' + Effective absorption area ¥,9~ Date of adequacy test ~./~, Fluid depth in absorption field before test (in.); Fluid depth (ins) MinLttes later:. Peroxide treatment (past 12 months) (Y/N) 72-026 (Rev. 3/96)* Soil rating (g.p.d./ff~ or ff=/bd~) _ h [~ System ~pe Gravel thickness below pipe.. ~ o' Total depth /~, Monitoring Tube present (Y/N) Y*' ~ Depression over field (Y/N) ,v Flesults (Pass/Fail) _ P ~'~'/ For G Immediately after gal. water added (in.): .bedrooms Ab.,~orption rate = ".> '7'~42 g.p.d. If yes, give date. D. LIFT STATION /~/' ~, Date installed Manhole/Access (WN) High water alarm level at* Cycles tested E. SEPARATION DISTANCES SEPARATION DISTANCES FROM WELL ON LOT TO: Septic/holding tank on lot Absorption field on lot I ~ ? ' Public sewer main /V. Sewer/septic service line Size in gallons "Pump on" level at* *Datum Property line Surface water ~ /~,' Curtain drain iVo,~ ~ .~ ~ ~,~ F. ENGINEER'S CERTIFICATION On adjacent lots On adjacent lots "Pump off" level at* IOO'~ Public sewer manhole/cleanout Lift station j,j./z).. HAA Fee $ ~-~,~' ~'~- Date of Payment Receipt Number Date of Payment Receipt Number 72-026 (Rev. 3/96)* Waiver Fee $ I certi that I have determined thru field inspections and review of Municipal records.~,,,1~a~,el~, cystems are in conformance with MOA HAA guidelines in effect on this date. ~,~, ,~--/ . Signature ~ Engineer's Name %~¢~ ~0¢¢ ~ ~oo~ Driveway, parking/vehicle storage area Wells on adjacent lots / ~,o ' -h SEPARATION DISTANCES FROM SEPTIC/HOLDING TANK ON LOTTO: Foundation '~ ~' ' Property line ~. ?' Absorption field 5' ~ Water main/service line '~ /~' Surface water/drainage ~' ~o ' Wells on adjacent lots SEPARATION DISTANCE FROM ABSORPTION FIELD ON LOTTO: I 'Z. ' Building foundation 5') ~ Water main/service line