HomeMy WebLinkAboutNORTON PARK LT 31ANo ton Pa k
Lot 3lA
#016-151-51
Municipality of Anchorage .." ..
Development Services Department
Building Safety Divbldn ~.~
On. Site Water and Wastewater Program. 4700 S. Bragaw St
P.O. Box 196650 Anchorage. AK 99519-6650 Page
www.ci.a nchorage.ak.u$ (907)343-7904
ON-SITE WASTEWATER DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT
Permit Number. ~c~ OOo¥ ¢~, PIDNumber:.
n,.~, ..~'ctme.r I~hee le.t Wastewater System: [] New [] Upgrade
,~=,e,, II"lOI "r~n ~er l~nt Dr% Az~c~ ~95't5- ABSORPTIONFIELD
LEGAL DESCRIPTION o. 8 o.~f to, 7 n,
-- 31 *q No,..l~e..,n p~n,"t<. 3. ?- F,. 7...c ~,.
O-&' n. &'¥ ~,.
Well: ~--y,,t,~7' []New []Upgrade ~..q' ~,.
TANK
SEPARATION DISTANCES I~ septic [] Holding [] S.T.E.P. [] Other.
~ Septic Abso~tion Lift Holding Pubr~c/P~'at~
Tank Field Station Tank Sev, er Une ~'/~ F..I~O~4Z'~ '7'~ ~/~ I000 r~.
LIFT STATION
to, t*,, ~O' ~Z:" -- -
/ X P'~ ~"'~ a v'°~ ~.,, ~..,,.~. ~.,.....~ ~
"'"~" BENCH MARK
Engineer's Stamp
Inspectionsperformedby: I~lc~t-/,o~ 'Itc~, ~¢, Dates: 1" Iol~/oo ~..~
Development Services Department Approval
'"":'" -
PERMIT NO: SW000410
PID NO: 016-151-51
SWING TIES:
FROM: COR. "A" COR. "X"
TO:
S.T.C.O. "C" 68' 39'
S.T.C.O. "D" 74' 38.5'
DBL. C.O. "E" 77' 37.5'
TR. C.O. "F" 73' 20.5'
TR. M.T. "G" 92' 34'
TR. C.O. "H" t15' $9.5'
LOT 31A
NORTON PARK SlD
PLAN VIEW
SCALE: 1" = 30'
PAGE 2 OF 2
NEVV 54' LONG SOIL ABS. TR.
W. 7.5' GV!_ BELOW PIPE
r· TH
NEW 1000 GAL.
SEPTIC TANK
ABANDONED , ·
SOILABS. TR. ""
3' SOIL COVER
2' SOIL COVER
INS.
INV.
92.0'
54' LONG s0iLABS. TR. i~
W. 7.5' GVL. BELOW DIST. PIPE
, , Bo'FrOM TR.
'' T.H. #1 ELEV. 84.5
'',/~M.T. DRY
',, ~/ ELEV. 77.2
, . INV.
PROFILE VIEW
NOT TO SCALE
INV. NEW i000 GAL; INV.
92.3' SEPTIC TANK '. 92.5'
LOT 31A, NORTON PARK S/D
SEPTIC SYSTEM UPGRADE
AS4~UILT INSPECTION REPORT
FLA'FI'OP TECIINICAL SERVICES
14530 ECIIO STREET
ANCIIOP, AGE, ALASKA 99516
SCALE: AS NOTED
DRAWN BY TFM
FEBRUARY, 2001
MUNICIPALITY OF ANCHORAGE
Department of Health and Human Services
On-Site Services Program
825 L Street, Room 502
P.O. Box 196650, Anchorage, AK 99519-6650
(907) 343-4744
ON-SITE WASTEWATER DISPOSAL SYSTEM PERMIT
Upgrade
Date Issued: Oct 02, 2000
Expiration Date: Oct 02, 2001
Permit Number: SW000410
Legal Description: NORTON PARK LT 31A
Design Engineer: 0019 Flattop Technical Services
Owner Name: JAMES WHEELES
Owner Address: 11701 TIMBERLANE DR
ANCHORAGE, AK 99515-3323
Parcel ID: 016-151-51
Site Address: 011701 MARY AVE
Lot Size: 41426 SQ. FT.
Total Bedrooms: 3 Permit Bedrooms: 3
This permit is for the construction of:
[] Disposa Fie d [] Septic'rank [] Ho dingTank [] Privy
[] Private Well [] Water Storage
All construction must be in accordance with:
1. The attached approved design.
2. Ail 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
(907) 343-4744 ( 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: J.,e..,~ ~
Issued By: ~
Date:
CIVIL& ENVIRONMENTAL ENGD~EERLNG · t'NERG¥ CONSERVATK)N & ANALYSIS
TllEODORE F. MOORE, P.E. 14530 ECllO ST.
Pll: (90'/)345-1:)$5 ANCHORAGE, ALASKA 99516
September 28, 2000
M.O.A. DHHS
P.O. Box E}-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 upgrade the wastewater disposal facilities on Lot 3 IA, Norton Park S/D, located at 11701
Timberiane Drive. The original trench is no longer able to accept the wastewater load generated in the
residence. Soils logs, pete test results, a site plan, design drawings and specifications are enclosed for
your review.
The proposed system will be constructed in the vicinity oftest hole # I. As can be seen from the soil
log, the native material below 4.5 feet is a silty sand with a measured pert rate of 4 minutes per inch.
Using a somewhat conservative soil application rate of 0.8 gpd/sq, ft., this 3-bedroom residence requires
a total absorption area of(3 x 150)/0.8 = 563 square feet. The proposed 41-foot long trench design with
7 feet ofeffective gravel between 3.5 and 10.5' below ground level has a total absorption area of 574
square feet.
The topography of the lot slopes down from the north at 25% towards the test hole and then is
essentially level for the next 50 feet south ofthere.
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.
I
, ,' LOT 32B
I ,,', LOT 32C
, (NO WELL
· , WITHIN 100')
I , ,~ ~ ,,
t ,
I ~ ', , Wi=LL
i_>~ ,'
.I ~ ,, ............ . CONSTRUCT NEV~ ;'...............
m ~ ~ ,, ...--- .... 41'LONGTRENCH ~ ', ,
< .., -. W. 7.0 EFF. G~VEL/ , ' LOT 31B-1
m ~ ~ , '.. INSTALL NEW ,,' 0% : : (NOWELL
--~ " '. ~ 1000GALLON~- '~ F * WITHIN100')
m~,, ... SEPTIC TANK ,
~ AB~DON ~ISTING ~ ~',', ',
m ,, , LOT 31B-2
I ', WELL ~ SEPTIC TANK ~D ~/ '"~ ' (NO WELL
, - ' ' ............ ' -.SOIL ABS. TRENCH ' WITHIN 100')
~OT ' ,
I ' NORTON PARK SID ....
m / '- . . . . . ' ', LOT 31C
m ,, WELL ~ ~'~'~:~ ...................... ::: ~ SEPTIC
m ~,.~ ~.......~; ;~., LOT 31A, NORTON PARK
· " ~ · .. ,~
I ,, ,~., ~ ~,~ %~ ¢. WELL AND SEPTIC SYSTEM
· . 5' ~ ~'9~ % ~ SITE P~N
m ~~*~.~ok~ F. ~oo8~ - ~ .- ~OPTECI~C~SER~C~ I INCH=f0FEET
m .- ' 14530 ECl IO S~ET D~WN BY TFM
· ~-: ~9 * ~ ~ ~CIIO~GE,~S]6 SEPTEMBER, 2000
,. ,
' '' . ~ ~' NOTE: THISlSNOTASURV~EDP~T.
m '. ..... ,. P~ ALL LOCATIONS SHOWN ARE APPROXIMATE.
"A" ~' . 4" DI~ F-810 PERF. PIPE
::::::::::::::::::::::::::::::::::::::::::::::
NEW 1000 GALLON
SEPTIC TANK
NEVV FDN. C.O. &
4" D-3034 FM. HOUSE
CONSTRUCT 41-FOOT LONG
SOIL ABSORPTION TRENCH
WITH 7 FEET EFFECTIVE GVL
BETW. 3.5' & 10.5' BELOW GND.
DBL
~ C.O.
PLAN VIEW
SCALE: 1" = 10'
MONITOR TUBE
CLEANOUT
-- MOUND BACKFILL6"
SECTION "A - A"
SCALE: 1" = 5'
ORIGINAL GROUND
FILTER FABRIC
4" Db~ F-810 PERF. PIPE
1/7' - 2 1/7' SEWER GRAVEL
~OTTOM OF EXCAVATION
LOT 3lA, NORTON PARK S/D
SEPTIC SYSTEM UPGRADE
PLAN AND CROSS-SECTION
FLA"I'I'OP TECl INICAL SERVICES SCALE: AS SI IOWN
14530 ECHO STREET DRAWN BY: TFM
ANCIIOP, AGE, AK, 99516 SEPTEMBER, 2000
qrfattop q'eclinicaf Services
14530 ~.c~o Street, ~nctforage,.,q~ 99516
{P~one (907) 345-1355
Lot 3lA, Norton Park S/D
11701 Timberlane Drive
Wastewater disposal system installation
Specifications
1.0 General:
1.1 The scope ofthe project consists ofabandoning an existing septic tank and installing a new
1000 gallon septic tank and constructing a new 41-foot long soil absorption trench containing a total of
7.5 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 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 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 existing septic tank must be properly abandoned by thoroughly pumping, removing the top
and backfilling with soil.
2.2 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. Ifthe tank is buried less than 4 feet, it shall be insulated with 2 inches of approved burial
type, rigid insulation.
2.3 AII pipe connections to the tank shall be equipped with waterproofmechanical couplings. The
waste line from the residence to the septic tank shall have a minimum slope of I/4'" per foot, and the
waste line between the tank and the soil absorption system shall have a minimum slope of I/8" per foot.
A cleanout shall be installed within 14 feet of the building foundation, and a double cleanout shall be
installed within 5 feet downstream of the septic tank.
3.0 Soll absorption system:
3.1 The soil absorption system shall be constructed by excavating a 4 l-foot long trench to a depth of
10.5 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 7.5 feet ofapproved sewer gravel shall be placed in the bottom ofthe excavation with
the perforated distribution pipes laid level such that the pipe inverts are no less than 7.0 feet above the
bottom ofthe 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. Ifthe 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 ofadequate topsoil and
seed to promote rapid revegetation ofall areas disturbed by the construction.
4.0 Inspections:
4.1 A minimum of4 engineering inspections will be required during the course ofthe project: (1)
initial stakeout with the contractor to establish the location ofthe 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 ofthe inspections with the engineer sufficiently far in
advance to ensure the availability of the engineer.
TEST HOLE # ]
LEGALDESCRIPTION:
DATEPERFORMED:
PERFORMEDFOR:
DEPTH--
(feet)
17-
18
19-
20-
COMMENTS:
FLATTOP TECHNICAL SERVICES
14530 ECHO ST.
ANCHORAGE, ALASKA 99516
SOILS LOG -- PERCOLATION TEST
Lot 31A, Norton Park S/D
S eptember_l.9..2000
d a m~s_WJ~L~
SLOPE
SITE PLAN
SM Silty sand tiff
w. buried concrete slabs
SM reddish sandy loam
SM Gray gravelly silty sand
D~ and "ltuff~ to 13.5'
Cobbles & boulders betw. 10 & 13.5'
Clumps of wet silt below 13.5'
T.H.
68 #1
SEPTIC --
SYSTEM
Depth to Groundwater Date
._H o_gr~u~_chv~ter 9/1 g/00
Monrtor ~u_bp dry 9/~6/00
Date Reading Clock Net Time Percometer Net Drop
Time (minutes) Reading (inches)
9119 12" Presoak
Resoak
Add water & start 3:35:30 23 5/16
#1 3L50:30 15 19 4 I~/16
Add_water 3:51 23 7116
#2 4:08 15 19~J/8 4 1/16
Add__water 4:06~30 23~5/8
~3 4:21:30 15 19 9/16 4 1116
PERCOLATION RATE 4 (minutes/inch) PERC HOLE DIAMETER
TESTRUN BETWEEN 6.75 FTAND 7,25 FT
Recommend using soil application rate of 0.8 gpdlsq, ft. for SM soils between 3' and 13.5'
PERFORMED BY FLATTOP TECHNICAL SERVICES. I ~'".,~.~ ~ CERTIFY THAT THIS TEST WAS PERFORMED IN
ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: ,.~.~ ~"~
/x ,, ~/~, MUNICIPALITY OF ANCHORAGE
'Y~1~ ' DEPARTMENT OF HEALTH & ENVIRONMENTAL PROTECTION
i ENVIRONMENTAL ENGINEERING DIVISION
825 L Street- Anchorage, Alaska 99501 Telephone 264-4720
ON-SITE SEWAGE DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT
NAME [P H'"O-N-g
MAI LING ADDRESS
~LEGAL DESCRIPTION
NC. OF BEDROOMS
Well Absorption area Dwelling PERMIT NO.
DISTANCE TO: ~ ~
Z Manufacturer Material No, of compartments
Liq. capacity in gallons Inside length ~ I I Width ~ Liquid dep, h,
~ -- ~ Manufactursr Material Uquid caoaciW in nallons
~ Well Foundation Nearest lot line PERMIT NO.
~__ N°'°flines ~ Length°feachline~ T°tallength°flines~ Trenchwidth~% inches Dis'ance between lines
~ ~ Top of tile to finish grade- ~ I u Material beneath tile~ ~ Total effective abs~r~t~rea
~ ~ ~ inches
Length Width~ V~ ~ ~ ~ Depth PERMIT NO.
~ Type of crib Crib d~e~er : Crib depth Total effective absorption area
~ Well Building foundation Nearest lot line
~ DISTANCE TO:
Depth Driller Distance to lot line PERMIT NO.
~ Class
~ Building foundation Sewer line Septic tank Absorption area(s)
~ DISTANCE TO:
OTHER
SOIL TEST RATING ~
9 xo
INSTALLER ~A
REMARKB(~ ~
rr x
72-013 I
d r -r -%
M -W DRILLING, INC.
UM SITE ID W"oEq,40
►���� �:1
DRILLING LOG ��� �0
Well Owner Jim Wheeles Use of Well DMu.
Location (address of: Township, Range, Section, if known; or distance main road
Lot 31A Norton Park Subdivision, Anchorage
Size of casing---6!--Depth of Hol
Static water level 60 ft,
Screen ( ); Perforated
Describe screen or
Well pumping test at—_g+
of drawdown from static
Date of
Cased to---78---l-5-feet
land surface. Finish of well (check one) open end ( x ) ;
(minute) :for----l---hours with 100% XK.
WELL LOG
Depth in feet fromh4 ti .
ground surface Cx ;i b.f rmations penetrated, size of material, color and hardness
2 TO 11
4
—1.L --TO 72
--2-L--TO i4
--- Z.4—TO 80
—TO-
-TO-
0-
0—
TO-
-TO
OTOOOTOTO
NWWA Certified Contractor
n"r ease NO;% 9-j & 9,^;T
2 —STATE
bEl:.l I):'1" 1`.40.
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E::" EE F" '"II"~ 11-~
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THE F.:,EPTH Of: I:~ TF'.ENCH OF.'. [::'ZT Z'.;i; THE B, i( ST'Ffl'.,IC:E BE:TNEEN THE ::.:;I...II:;?.FRCI.~: I.".'IF' THE:
Gf4:OUI',,I[) FIN[) TIqE BOTTOH OF THE EXCFI',,,'I:IT ]: ON ,:: .~ N I:::'EE:T ).
THEF:'.E IRE', 1`,10 SET' t4:[[::,TI4 f:'OR 'T'F?.EI'.,!E:HEG.
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F:I1`,ID THE ;30TTOH (::Ii':' TI4E E:XCR'v'I::IT :[ ON ,...'[1`.4 FEET::,.
'E:.i',.ll:[I RI::'F:'L..]~E:I:::II'4T I-'IFI% THE F..E:.,I
:( NSTFILI....FFI' ]: O1',1 ;[ I",L":,F E ..1 ]: ONE; OF Fff',l"r' FIELL% FiC:,,:rFICEN'I" TO I"H Z E; F'F'.OF'E'RT"r' RN[::, THE
NI..If'llE~ER OF F:tlE'.'5 Z DE'NCEb-.', THr:IT 'T'HE I.,.IELL 1.4): L.L E;EF, t',,,'E:.
[:N::If.'.::I.(F']:[..I..]:1',IG OF FINU E;"r'FST'EH !.,.I:["I'HOUT I::' :[ NI::IL .I.[,!:,I--E.,I:[OI',! FIN[) HFFF , L. '1"1'1:[ ~;
D[:.::F'F:IITTHEI",IT !.4 :[ LL.
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'.LETO FEET F'OR F.I F:'I:;?.):',,,'FITE I.,.IELL;
:L50 7'0 200 FEET FF?.Cff`1 FI F'UE~L]:C I.,I.lJEI_.L [:,EPENE:,]:1`4G IJF'ON THE "r'.r'F'E (:il:: F'UBL. ].' E: I.,.IET. L.t
NELL. LOGS FIRE: REC.:!U:[.F?.E[) ¢11`.,1[;:, I',1U2;T Ei~E: f,~:ETIJI:;.'.i'.,IED TO THE C:,EF'RRTHE1`.,IT 14):TH:(N 38
('.'il:;:' THE I-,.IELL cor,IF'L. ET]: ON.
OTHEi';.: R[::.I.';!U :[ Ri!EH[:.:NT% HR'.,.' FIF'F'I...'.r'. E;F'EC: :[ i.: :[ CFI"I' .'[ I.".:11`.,12j; f:11`'4E:, COI',I:J~';TF.':UCT ~[ El1`..! [::, :!: f:IGI:;?.F:IH:!:!; I::IFUE
~:I',,,'FI:[i...FIBLE TO :1: NSUF..:E PF:'.OPEt7 ]: NSTFIL. LFIT :[ O1'',1.
I CE'F:'r I F",,.' THRT
:L: i f:lH F:'Ffl"IIt~.II-'.IR I,.I]:'I"H THE F..'EQLIIREHENT'..~ F'O[~: OI'.,I--..:SI'l"E :::;EI.,]E:R:E; AND !.,.IEL. L..:L'.;
i:'OF.'/H4 [.::'.r' THE HUN :[ C I I::'FIL .T. T"r' OF' RI',IE:HOF:FIGE:.
2: :[ Ni[LI... I1`,ISTIqL. L -i.'H[E S'¢E;TEf'I I1'.4 FIC:E:O[~'.[)F:II',ICE I.,.tlTH THE; CODE'-:::-;.
:~:: :[ LII'-,I[)EF.':'2.;TFI1`-,I[:, TFLIFIT THE O1`,I.....'_-!;ll"E~ 'SE!4Ef;?. '?.!;'.,.'STI:i:H HFI"r' F.:E::6!I.J]:F?,E ENL'..Ffl:RG[H"IE:1`',FF ]:F:' THE!:
F::ES I [:'[EI",ICE: :[ S [;.:EHODEL. E[) TO I i",ICLIJ[)E I'`1OF?E THRI",I :~:
F:li.:: F I_~Jl CFINT ..~r ].' ["l NHEEL. IEE; ',
MLJNI('.It~/',LITY Ot-: ANCIIORAGE
c. ~,?,ttL~- DEPAR'I i',li:i~lT OF IIEAI.'FH ANI) E. PIVIRONMI~NTAL PFiOTECTION
SOll. S LOG -- PERCOLATION TEST
i.'ERF()r/ME D FOR: ...........
2
3
5
0
11
1 3 -
1 iS -.
1 ~i --I
LEG,,",[ DESCi IPTI(;N:_ t ....... ' '' _ ......
SLOPE