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Home My WebLink AboutARNETT BLK 1 LT 1Arnett Block 1 Lot 1 #015-471-21 Municipality of Anchorage ^ ^ L. Development Services Department Building Safety Division '- On -Site Water and Wastewater Program, 4700 Bragaw St. P.O. Box 196650 Anchorage, AK 99519-6650 Page I of'L www.ci.anchorage.ak.us (907) 343-7974 ON-SITE WASTEWATER DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT Permit Number: w 0 y o YS8 PID Number. Z f Name 14QAc Arn[ff Wastewater System: iR New [3 Upgrade Aab..e 11 a6o fi�c/iac�o Tran/ 9�1�7 ABSORPTION FIELD Fnoru. NunxMr M Beaopms ?-.r i 75 19 ll Deep TnnU 0 sMIWr TrerKh C3 Baa 0 MovW 0 Dmn LEGAL DESCRIPTION Soo Rr.19 I Z Taal DWh Dom apml T Wa e GPDIFI' 10.0 Ft. BbcxW SV WINNM' DWIh M PM Dolton hdnnO 9.0pada G,"M depth D*rreth p.M 1 1 A rroteF Jf •./ Ft. I. Fi Tp. p Range sachon F. Waed nova mprMl 7•a• raevn Len91h' e7-5' Ft. 60.5 Ft. • Welt [I New E] Upgrade Gra nwdh Z. Nu oco loss D.rrKe D*hvesn Ines S' FI. I FL Clesv4caum(P.M.A,B,CI' Tom oepm caswm Tarnsorphmr*a' P�peMalenta IC�Q1d �rF Pnv.e/e 7d Ft. 70 Ft syy Fie ;-i0:Y I�M• [tf Dnler f1 �>Z• Dns DN" shit W*In LM,M musiw Data inslrlW t L" it /7- /a 3 Ft Eu t /w t..► Cwe Pira 3S Sr r' Casm9 Nr9M Aoove G'w 2 TANK GPM FI. Ft SEPARATION DISTANCES ® Septic [I Holding ❑ S.T.E.P. ❑ Other. To Septic Absorption Lift Holding ubll✓Pnvate a"••r WcW From Tank Field Station Tank Sewer line I'rto"te • Plavt'i'tr /GCAOGr Wen 7.14,01 7 IAF - '> 1r I M*ln,t1 PwlycM /fns NU acomwineras. Z safe:*wre, :,. Jews y Ica• _ _ LIFT STATION Lr Lne '00 13' _ SB Gal i A . F 'Poop on, Mvr r 'Plop or ism st W9h "w a. al. Fo.Mrron ";W$' $' n n in. Pump Max* a Mosel Eloxf I Intpepinq perlmrnwi Dy Cuum Don Remark* BENCH MARK LOCe4M and DegpLnn ct t'et . olk vF prwiper.6eou.nM h.ca,' Nwil ia� 14!7f Ir Frt4 OF lutafaa. A1W♦nNa Q OH 0tg, Engineers Stamp Inspections performed by: F/uff+n TZc+ St Ae Dates: 1" 141/2-1 /6 Development Services Department Approval r` :_' •"" W.. Conditional Approval Date: r* b„ P .......... .....•.e �* It+ • THLODORF F. MOORe ••. Reviewed and approved U/l? Date: // 4, y,•, CE.3569 �h ' t�� '•.,,9. AWL (Rev Wr06)'. •may.. • ,�(`t'."C• i PERMIT NO: SW040458 PID NO: 015-471-21 60.5 -FOOT LONG SOIL ABS. TRENCH w. 4.5' EFF. GRAVEL SWING TIES FROM: COR. "A" COR. "B" TO: S.T. C.O. "C" 46' 47' TR. M.T. "G" 76.5' 85' Or A4 tC C TH ........ p : Ti!'-ODOP'• F. Mf CRE .77. is �r BOTTOM T.H. #1 ELEV. 75.2' WATER @ 80.T 10/22/04 TBM� 1000 -GALLON POLYETHYLE SEPTIC TANK GRADE PLAN VIEW SCALE: 1" = 30' r 60.5—FOOT LONG — SOIL ABS. TRENCH w. 4.5' EFF. GRAVEL BOTTOM ELEV. 85.6' PAGE 2OF2 WELL 1000—GALLON INV. POLYETHYLENE 96.1' SEPTIC TANK CROSS-SECTION NOT TO SCALE INV. 96.4' PERMIT NO: SW040458 A PID NO: 015-471-21 60.5 -FOOT LONG SOIL ABS. TRENCH - w. 4.5' EFF. GRAVEL 'H' SWING TIES FROM: COR. "A" COR. "B" TO: S.T.C.O. "C" 132' 159.5' S.T. C.O. "D" 128.5' 158' DBL. C.O. "E" 124' 157.5' TR. C.O. "F" 97' 178.5' TR. M.T. "G" 96' 162' TR. C.O. "H" 107' 119' "B" I „ is BOTTOM T.H. #1 ELEV. 75.2' WATER @ 80.T 10!22!04 l I� .F. 6L=PL ' T , [MGW S'ITf` .H T. t #1 ' "C' TBM// O ; 10014GALLON POLYETHYLENE SEPTIC TANK PAGE 2OF2 WELL 211 R 100' PLAN VIEW SCALE: 1" = 30' GRADE AKNLI 1 ,/U v - x, t.�- L�.n7ri Cid .•�fi 1 o �., : T6t0.^.pRc F. AfOORE•; 1f CF -35G7 ;£��• ice„ 1000 -GALLON INV, POLYETHYLEN 96,1' SEPTIC TANK �'• '•II�vY''�c" INV. CROSS-SECTION 90.1' NOT TO SCALE 60.5 -FOOT LONG SOIL ABS. TRENCH LOT 1, BLOCK 1, ARNETT SID w. 4.5' EFF. GRAVEL SEPTIC SYSTEM INSTALLATION AS -BUILT INSPECTION REPORT BOTTOM TRENCH FLATTOP TECHNICAL SERVICES i SCALE: AS NOTED ELEV. 85.6 14530 ECHO STREET DRAWN BY TFM ANCI IORAGE, ALASKA 99516 NOVEMBER, 2004 FROM : REINET SHAU AR ETT PHONE N0. : 907 348 0334 Feb. 19 2005 08:31PPI P2 „hyo OW ■ ea/rarab (^Ar a�irt+rr U.afD30. ]tef.00f. ~46 11 fflft 11 AAC U1e4 DUARTIAM OF NATURAL RESOt1RM Masi A w.sr tsyrirdeele Saner SS. W 7m Ar.., Suila 900A Amdmn%AXVMI, S7T .TeMOr' - Vn :; *4W avd IAX M Sit-t3a4 phone Number: Drsom si0rwh+, Within the City of AnchmeBF. 0 a seat to the appropriate city o'TceI lhewell log.ontw>�c� ;iapm 9 pea�tNutttam6 ba —7 Dateorugu . 0r U Pvta Idemifiotion Number: _ y 6t ova looted at approved pct l . ro0Y of the wcA lo; W and dat aroma owy of X30 da)s.• DEPARTMENT or NAT URAL RMURCPS . 3540 AICUU10R1VE MINING. LAND, WATER gyDROLOGICS.Myne ANCHORAGE. ALASKA 99516 WATER WELL LOG (907)345 0593, Drilling Souoed: CampWcd: L / su6&vwim{.Nss I Biock tet /A6&44' c7G PrepomOweliju W A a baway J'° n.„f}.�, YMM IrtN • W--•--• OR P.kvxino: . BOXIMO IX DATA: (from vvw d .urtaoe) Dey11 DnUing ndhod Air tatary. CI Cabe tool, Otba_T� 'Maladak.Type,004"Awetoesa I E 119 wenvw. oPYbuca0djK •.�• 35 T askc &Mcftr: 6 imbes aAna�-�'a ' Q�L )o n a� 35 T 6 :••a Lboor": Diamei r. dc6 - � %t L 1 (- J o $btic Mels Ur", call of ca.ioir, ft ca -i >"Diu6lercl & *id: r'xt aRa — Itoaq at .�EAm W t ttatio.«r tax 35 tt>m. of> _.�- . �• S SO go Dowkp =d mesad well Intake opmin` trr. Xopm ted, o opm hole CO 63 o scmmea: star: R. s`°ppcd__ ' a --- c i s.� r� 63 6 s serewtm* UPutontcd'Start R�PRV — 0.M �! Stan: ft. N bs 78 Note Grout we. 1 n e. Volume -- - - _--- Depk from Pvap mtak. depth. B pww fac hp. nrond o.mc Was welt disinfected upon eanpki00? ;h '(M o No Method of d'aafeclim Driller commeow diselaitams. Wed Drther N „hyo OW ■ ea/rarab (^Ar a�irt+rr U.afD30. ]tef.00f. ~46 11 fflft 11 AAC U1e4 DUARTIAM OF NATURAL RESOt1RM Masi A w.sr tsyrirdeele Saner SS. W 7m Ar.., Suila 900A Amdmn%AXVMI, S7T .TeMOr' - Vn :; *4W avd IAX M Sit-t3a4 phone Number: Drsom si0rwh+, Within the City of AnchmeBF. 0 a seat to the appropriate city o'TceI lhewell log.ontw>�c� ;iapm 9 pea�tNutttam6 ba —7 Dateorugu . 0r U Pvta Idemifiotion Number: _ y 6t ova looted at approved pct l . ro0Y of the wcA lo; W and dat aroma owy of X30 da)s.• Municipality of Anchorage Development Services Department • +.� Building Safety Division On -Site Water and Wastewater Program 4700 South Bragaw St. P.O. Box 196650 Anchorage, AK 9951 M650 www.muni.org/onsite (907)343-7904 ON-SITE SEWERIWELL SUBMITTAL COMMENT SHEET To: Flattop Technical Services Legal description: Arnett Block 1 Lot i The attached paperwork has been reviewed and Is being returned for the following reasons: ❑ Original signature or stamp missing on ❑ Calculation error in design. _ ❑ Additional soils information needed. ❑ Water monitoring results inadequate. _ ❑ Discrepancy in information submitted. ❑ Topographic information missing or inadequate. ❑ Incomplete; missing _ ❑ Incomplete; missing _ ❑ Additional adequacy test information needed. _ ❑ Water sample unacceptable. _ ❑ Measured/proposed distances/dimensions missing. _ ❑ Locations of all soils, percolation and water monitoring tests not shown. _ ❑ Proposed system too deep for soils information submitted. ❑ Well log required. ❑ Omission in narrative. ❑ Insufficient fill over tank or field._ ® Other. Review of Inspection Report cannot be completed due to mis Name of reviewer. Julie Makela. P.E. Date: 1/28/2005 Please supply the necessary information and re -submit your request. LEAVE THIS FORM ATTACHED TO THE PAPERWORK MUNICIPALITY OF ANCHORAGE DevelopmentesDepartment o1 Onsite Water & Wastewater Program 4700 South Bragaw Street 1 I P.O. Box 196650, Anchorage, AK 99519.6650 (907) 343-7904 ' t ON-SITE WASTEWATER DISPOSAL SYSTEM / WATER SUPPLY PERMIT Initial Permit Number: SWO40458 Date Issued: Oct 26, 2004 Expiration Date: Oct 26, 2005 Parcel ID: 015-471-21 Legal Description: vwETT SUBDIVISION BLOCK 1 LOT.1.1 Design Engineer: 0019 Flattop Technical Services Site Address: 11060 HIDEAWAY TRIAL Owner Name: HANS & REINAT ARNETT Lot Size: 49700 SO. FT. Owner Address: 11060 HIDEAWAY TRAIL Total Bedrooms: 3 Permit Bedrooms: 3 ANCHORAGE. AK 99516 - This permit is for the construction of: ❑✓ Disposal Field ❑✓ Septic Tank ❑ Holding Tank ❑ Privy Private Well ❑ Water Storage All construction must be in accordance with: 1. The attached approved design. 2. All requirements specked 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 DSD at least 2 hours prior to each inspection. Provide notification by calling (907) 343-7904 ( 24 hours). ( Not required for a Water Supply Permit only). 4. From October 15 to April 15, a subsurface soil absorption system under construction during freezing weather must be either: A. Open and closed on the same day. B. Covered, sealed, and heated to prevent freezing. Received By. Date: f0 29 U Issued By.; G;. Date: 0 0 Municipality of Anchorage --1 Development Services Department Building Safety Division On -Site Water and Wastewater Program 4700 South Bragaw St. P.O. Box 196650 Anchorage, AK 99519-6650 www.ci.anchorage.ak.us (907) 343-7904 ON-SITE SEWER/WELL PERMIT APPLICATION FOR A SINGLE FAMILY DWELLING Parcel I.D. 015-07+1_211 Permit Number SW Property owner(s) Re rn Af i Hary Ann et f Day phone 3 Y57- 7S6'! Mailing address (1) P.e I&g address (2) Ilbfnn Zip Code 99523 -o#q ? Legal description (Lot, Block & Sub'd.) 6/c,ek /, .4 -,Pe tf Si, Legal description (Section, Township & Range) Lot Size 4q �2tb Acres/Sq.Ft. IIn&V'A �1111le-11L631l&1;101x; Number of Bedrooms Sewer Only ❑ Well Only ❑ Sewer and Well ® Water Storage ❑ Sewer Upgrade ❑ THIS PROPERTY CONTAINS: Hot Tub ❑ Jacuzzi ❑ Swimming Pool ❑ Water Softening Unit ❑ Therapy Pool ❑ certify that the above information is correct. I further certify that this application is being made for a Single Family Dwelling and is in accordance with applicable Municipal Codes. (Signature of property owner or authorized agent) Permit Fees: V'0 -07S = 6 3t Waiver Fees: Date of Payment: 10 / 27-/ Oy Date of Payment: Receipt Number: Receipt Number: (Rev. 12100) r [i •.F,LATTOP'TEGHNIGAL SERVICES:. CPU d ENYMONMENTAL ENGLNEERLNG • ENERGY CONSERVATION & ANALYSIS THEODORE F. MOORE, P.E. PH: (907) 345-1355 October 22, 2004 M.O.A. DSD P.O. Box 19-6650 Anchorage, AK 99519 Dear Sirs: 14530 ECHO ST. ANCHORAGE, ALASKA 99516 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 to serve a planned 3 -bedroom residence on Lot 1, Block 1, Arnett S/D, located 11060 Hideaway Trail. A soils log, 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 below 7.0 feet is a slightly silty fine sand with a measured perc rate of 1 minutes per inch. A 7 -day stabilized water level was measured at a depth of 14.5 feet in the monitor tube. Due to the wet fall weather experienced recently, this should represent a seasonal high water table. 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 60 -foot long trench design with 4.5 feet below the horizontal distribution pipe (3.5 feet of gravel below 7 feet) has a total absorption area of 540 square feet, with 420 square feet of sidewall area below 7 feet. The topography of the lot in the area of proposed construction slopes down towards the west at 15N. 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. Sincerely, Ted Moore, P.E. LOT 2, BLOCK 1 ARNETT S/D (VACANT) --------------- CONSTRUCT 60 -FOOT LONG 2 SOIL ABSORPTION TRENCH N w.4.5' EFFECTIVE GRAVEL w Ya betw. 6.0'& 10.5'B.G.L Y J ' o Q T.H. �R y604 1 m #1 \ INSTALL I 000 GALLON 1 O ^' _ ;' SEPTIC TANK PROP WELL R 100. SI w000 > :> PILE i ' 15% R 100' 3 FROM WELL , LOT 1, BLOCK 1 ` o ARNETT SID LOT 1, BLOCK 1 HIDEAWAY ACRES S/D , R10 HOUSE ll SEPTIC AREA WELL `iQ:A ,41 LOT 1, BLOCK 1, ARNETT S/D AV .�9 m SEPTIC SYSTEM IAN INSTALLATION ..'....... 9. FLATTOP TECHNICAL SERVICES 1 INCH = 50 FEET THEODORE F.MOORE ; 14530 ECIIO STREET DRAWN BYTFM *o CE - 33589y ,i �c� ANCI IOP AGE, ALASKA 99516 OCTOBER, 2004 Ar NOTE: THIS IS NOT A SURVEYED PLAT. \�= ssto� ALL LOCATIONS SHOWN ARE APPROXIMATE. 4" DIA F-810 PERF. 4" DIA D-3034 DOUBLE C.O. INSTALL 1000 -GALLON POLYETHYLENE — SEPTIC TANK w. MONITOR TUBE BESIDE ®^q� OF A4.,, rot 49THtAk :Tha'm THEODORE F. MOORE j jr ti ,�.••,• CE -3589 t 'Noy �f•1 ,z •C-�:� '�f �yY Dic, �o 10.5 FROM FDN. C.O. TUBE CONSTRUCT 60 -FOOT LONG SOIL ABSORPTION TRENCH w. 4.5' EFFECTIVE GRAVEL (5.0' TOTAL) BETWEEN 6.0' 810.5' B.G.L PLAN VIEW SCALE: 1" =10' MONITOR TUBE CLEANOUT MOUND BACKFILL 6" GROUND FILTER FABRIC . P DIA. F-10 OR PI 5 45 PERF. DISSTRIBUTIONION PIPE s: z »•i:i;[;i;i;:; 12"-212"SEWER GRAVEL CROSS-SECTION SCALE: 1" = 5' OF EXCAVATION FLATTOP TECHNICAL SERVICES 14530 ECHO ST. ANCHORAGE, ALASKA 99516 TEST HOLE # 1 SOILS LOG - PERCOLATION TEST LEGAL DESCRIPTION: —Lot ].BlockJ AmettSID. DATE PERFORMED: _Ootoberj 5.2004 PERFORMED FOR: —Hans ✓3 Reinet Arnett ncoru SLOPE (feet) - - 2- 3- 4- 5- 6- 7- 10- 12- 13- 14- 16- 17- Is- 20 - Pt. -3- 4- 5- 6- 7-10'13 14-16-17 16 20- P. SM Reddish sandy loam MUSM Tan sandy silt Damp, sticky Lenses of SP below 5.0' SP Fine, slightly silty sand scattered lenses of ML Sidewalls unstable below 14' BH of trapped water Depth to Groundwater Trappedwater @ 15.5' Water @ _14.5' b.g.l Date 10%15/04 0/22/04._ 100 10/151 12" Presoak r 12"Jtesoak Start 3:25:50 #t 3:28:50 �3 Add water 3:29:28 #2 3:32:28 3 Add water 3:33:14 #3._ 3:36:14_ _3 _Add_water _3:36:57 __ #4 3:39:57 T.H. #1 _ 3 518-� _ ,__. 1 -312. A', k�• . A ''. to �`✓� ``! . .. �.. a '. THEOLORE F. ICOORE. i CL - 3589 y,i P 0 SITE PLAN Date Reading Clock Net Time Time (minutes) PReadinter Reading 100 10/151 12" Presoak r 12"Jtesoak Start 3:25:50 #t 3:28:50 �3 Add water 3:29:28 #2 3:32:28 3 Add water 3:33:14 #3._ 3:36:14_ _3 _Add_water _3:36:57 __ #4 3:39:57 T.H. #1 _ 3 518-� _ ,__. 1 -312. 233/8 _191/2_ 23 3/8 0 ;015 197/8, __3 LOT 1, BLOCK 1 i ARNETT S/D J Date Reading Clock Net Time Time (minutes) PReadinter Reading Net Drs) (inches) 10/151 12" Presoak r 12"Jtesoak Start 3:25:50 #t 3:28:50 �3 Add water 3:29:28 #2 3:32:28 3 Add water 3:33:14 #3._ 3:36:14_ _3 _Add_water _3:36:57 __ #4 3:39:57 271 /2 271/2 _ 3 518-� _ ,__. 1 -312. 233/8 _191/2_ 23 3/8 19 3/4 _23 3/8 _ 197/8_1___31/2.__ 233/8_1__. 197/8, __3 i J PERCOLATION RATE 1 (minutestinch) PERC HOLE DIAMETER �• TEST RUN BETWEEN 715 _ FT AND_8.25— FT COMMENTS: —Base design on 1.2 gpd/sq.ft_with 3.5 effective gravel between 7.0 and 10.5 b.g.l._ PERFORMED BY FLATTOP TECHNICAL SERVICES. I A". -r( ";e .. _ CERTIFY THAT THIS TEST WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: /0 /-1-z /� 4Yattop TechnicafSendcas 14530Echo Stud, flnebrage Ax99516 Tfwm (907)345-1355 Lot 1, Block 1, Arnett S/D 11060 Hideaway Trail Wastewater disposal system installation Specifications 1.0 General: 1.1 The scope of the project consists of installation of a 1000 -gallon polyethylene septic tank that discharges effluent into a 60 -foot long soil absorption trench containing a total of 5.0 feet of sewer gravel between 5.5' and 10.5' below ground level. 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 to 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 Unless agreed otherwise, the homeowner shall be responsible for any tree clearing necessary to complete the project. 1.5 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. 1.6 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 polyethylene 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 be insulated with 2 inches of approved burial type, rigid insulation. The tank shall be carefully backfilled with sand (available on- site from the trench excavation) in accordance with the distributor's instructions in order to avoid damage. To comply with Municipal requirements a perforated monitor tube shall be installed adjacent to the tank, which extends to the depth of the bottom of the tank. 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 1 - 4 feet from 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 60 -foot long trench to a depth of 10.5 feet below ground level as measured at the test hole. The long axis of the excavation shall parallel an existing contour 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 serving as filter material shall comply with Municipal specifications. 3.3 A total of 5.0 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 4.5 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 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.