HomeMy WebLinkAboutWALKING BILL LT 2
MUNICIPALITY OF ANCHORAGE
DEPARTMENT OF HEALTH AND HUMAN SERVICES
Environmental Health Division
825 "L" Street, Anchorage, Alaska 99502, Telephone 264-4720
ON-SITE SEWAGE DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT
~ar,~ DISTANCES O
I'~-)~'~ ('. t~ ~-/A L- F 0 J~. KD ~ TO SEPTIC ABSORPTION
WELL
AddreasFDor~ ~,.~ -- TANK FIELD
Phone(st Permit~N~o. NO. of Bedrooms WELL ,4~.~,- ;,~ /~z
~' I~'°:~- I "~)f,;,/~;'~,~ ~2~\\ FOUNDATION ~w,- ,~,,~'
TANKS
~ SEPTIC ~ HOLDING __
TYPE OF SYSTEM ~
~ TRENCH ~ BED ~ W. DRAIN ~ OTHER ~
original grsde ~ ET //
0 FT ~ FT
3 ~T FT _
WELLS '
~ PRIVATE ~r/~ ~ OTHER (Identify)
FT
REMARKS: ~ ~ ~
Inspections Performed by: ~:f'~,~?~
E~gJe Rivor Engineering Services
P. O. Box 773204 ~? ~,~
Dine: ~sgJo River, AK 99577 .; . "~ ': ;.'
I ~~ cedgy Ihalthis inspection was pedormed according to ag ~ "' ~"
MunicipalandStaJeguldellneslnefleclonthb~ale:- /o~ /~? , d~ %
......... ,
72-013 (3185)
/9(.::,l::)aptm(.!;!rvl... (;:)f I-h.::!a:l.'!..I] & !.h.m/an c,.~.,,....~,,~:.
I.. S't.r,a,a,t, am:::hcmage~ Ala?~il.::a ,:~c:, ~'). .'~,4.'~---4./~;:~C~
Own (~.:,l" Name :i I.t. [.,k HP&.F'CtRD
CI'I~[:} IAI<i, AK
Sl:}]:'q' I [; "1 f.q',ll::i :: H i n :i. mum 'Lot a ]. sep'l'. :i. c: 'I'. al')k (::ap ac :i. 'Ly ~ J. :~ ()OC) g a ] ]. c)n ?i ,, Each sept :i c
· t, anl.:: IIiLI!FK~', ha3. vl;~ /~'J, ].t/)a~J~'l'. Z?, C(]FNp~ltP'IL~IlgrYJL!B,, Depth
~ e e t r' ~..~ q u :i. r' ~.-~ :i. n s u ] a 't. i c)ri (::)v ~:,~ r' t a n I:: ( s ).
WEI.,I..~ I..c~g taLa:ct be sul::uni'Lted 'Lo Municipa.'.l. ity o{ ArH::lxm"age Di'.~pal'tmer~t. i::)f I,ta, alth
and Fh.unar~ S~:~PvJ.(:::<.:~s ~JJ't:,hJ. rl 3() clays c:)~ will] ccxnplr'~L:i,c~n.
I'HI:S 13YSI'IEM I"ILJST B[i~ INS'FAI..I..ED IN ACCOI:~:DAI'qCE WI'FH FHI:E APF::'RCIVED
E]xI['~ I IxlIE-]i!:R ~ S DES I I':)1",1. TH[i: "I'REN[]'-I MUST MA I NTA :1: I"-I A 50 ~ Slii!: I B~'~CK F:'RC~M
'I'[IE 'I'O!E [)F 11'li:4 SLOPli!:. DHHS MUST )3E: I",IOT1F]:Ei]) I:::'F:~'.IC)I::~: TO Al.I...
I:ONS. II't]:'S I.::t}i:I::RMI I' :I:S FOR A 3 I.)tZi}RCK]M S:[NGI..E I:::'AMII_Y RES I Dli:NCE:
(]lql ¥!, AIxlD I~i:×F'[Rh::S [)1".1 :12/31/lil9,, II,,ISlhI. I.ATZ[)Iq OF A I_IF:'T SI"A'I'ION
F~I-]]:~!U]ZF~I!:S ['Hlii: AI:::'H::~C)I:::q::~:IAI'I~: I!!]..KC:TI::,~]:C;AI..
]: Clili]:RT :1: t:::'Y 7 HA'I:
fc)~/I', by 'l',hc, Mun:ic:i.l:)al:i.'l.y ~::.'.[' Al'lchor'a(.],~:~ (MOA) and the S'Late (::~f A]ash:a~
at"iCI J. ri C(]Fiii]] j. al"ll:::~. ~i'L!'l 'Ll'l~ (::hz~s:i.(jrl C;l":['l:.~',.?pJ~'i of 'J',.J'l:L!~i per'm:i.'L,,
:1: w:i.].l al:lher'e to) al.I. MOA arid S'La'L(-] (:)f A].asl::a
(:]:i~'Lal"il::r.~i Jr'om a~d"ly 6:,>;~.~B'l'.:[llg ~(al][~ ~x~aiB'('.a!wa'L~H' d:isposal sysL(m'il of public:
][ LH"Ii:IEYPS~:ad](:I tl'la'L tl'"lJ!B per, mi'L :i.s v~.~.].J,d fop
i,~.l, sc) Lu'lch:..H'star'id tha'L 'Lb(',) cal:~ac',:i,'Ly (::~t' thc~ 'Lcr~..a]. slyst~'.x, :is 3 I::)c.x::h'c~c)mu~ arid
~ii['ly C,)l]],aPi~Jt:~fll~el'it ~x~:J.]]. P~,x, qu:i.l-e afl addi't:.:i,(:)nal
MUNICIPALITY OF ANCHORAGE
DEPAR I'MEN1 OF HEALTH AND ENVIRONMENTAL PROJECTION
825 L, Slreet, Anchorage, Ala¢<a 99501 264-4720
SOILS LOG-- PERCOLATION TEST
SOILS LOG
PERCOLATION
TEST
LEGAL OESCRIPTION: ~¢~ ~ ~ ~-/~'- /,9/' ~ /~4~ ~¢~ , ~O
1
2
3
4
5
6
7
8
9
10
11
1
13
15
16
SLOPE
SITE PLAN
Reading Dale
'rEST RUN BETWEEN
_~o,Y ,~.r,.;~:_~_~_C ~.,'¢ /~,,~ ._
Time Time
~, ~/ Imlnutes/inch)
~/ FT AND 7 FT
SPECIFICATIONS FOR ON-SITE SEPTIC SYSTEM
LEGAL: NALKING BILL SUB.. LOT 2
GENERAL
1. 'Fha well and septic plan are t~or a single family r, estdence enly.
2. The drawinq and or site plan shal'l be a part of thfis specificat'ion.
3. All materfla'ls and workmanshflp she-Il meat the Anchor'age Depar~men~
Ileaq t;h and S~at:e I)epar~men~ 0¢ Env-i nonmem'~a 1 Conserver ion
requ t PenanCe.
4. A'I] soil ~es~s are aclvdsopv to ~he design and ape ~o be verified er
modified fin ~he fielct by ~he engfneer'.
6. A'I '1 excavations and dep'~hs ape advisory and are ~o be ven't¢ied an
motif'lied 'in ~he fie'Id by ~he contractor ~o mee~ Munioipalfi~Y of
Anchorage, Department of Envfironmen~a'l Conser'vatfion r, equipemenEs.
6. I~ is the responsfbi]fty of tine owner to obtain a'l] necesssar~ permits
or easements and to loca~e any ad,jacen~ mu]ti-family wells.
'/. The excavation is to be exactly in the area shown on the sfte p'lan,
anv devffation requfres engineer' approve'l.
8. It is always recommended that a surveyor 'locate the iheapest
posfiEion and the ]oca~ian of any easements.
B o
FRENCH
I. The trench is to l~o]'low ~lae natural 'land con,our to maintain uniform
tot:a] depEh of the trench bottom.
2. 1'he bottom o¢ ~he ~nemch shall be level, plus on mfnus ~.5".
3. The tota'l depth of the trench excavatten is not to exceed 11 ' at
any po~n~.
4. The trench grave] tis ~o be covered with ~ypar 'febrile material.
5. Sof'1 or combflnation ef soi1 ned extruded board insu]attomn ~o a depth
of 4' or equiva]en~ is to be p3aced over" the qeachfie]d.
6. Tiaa ar'aa aver ~he ~rench fs ~o be fintsh graded to preven~ pending
7. 'Fine septic tank and ]eaehfie]d must: not be c'loser than 100' to any
existing priw~te well , 150' ~o any Class "C" wa}], er ~00 feet to
any com~unfty well.
RECOMMENDED LEACHFIELD DIMENSIONS
Tel'AL DEPTII = 11' GRAVEL DEPTH = ?' TRENCH LENGTII = 33.2'TRENCH WIDTH = 30"
Soi'1 Rat:'ing = 155
Bedroom Capacity 3
Septic Tank Size ='- 1000 GAL.
RIVKR
ENGINEERING
SERVICES
Lou Butera, P.E.
P.O. Box 773294
E~,~glo River, Alaska 99577
'lelephone (907} 694-5195
September 11, 1989
Mr. Robbie Robinson
M.0.A./D.H.H.S.
825 L Street
Anchorage, AK 99501
RE: Walking Bill Subdivision
Dear Mr. Robinson,
On behalf of my client, Mr. Rick Halford, I am requestin9 a
slight variance of the Municipal requirement of set back to the
'uphill portion of a change in slope of +25%. The request is to
site the septic leach trench at 35' from the top of the hill. This
request is to allow the homeowner to retain a buffer of 'trees
between his home and Old Glen Highway.
The engineering basis for this request is attached. I do not
believe that our request will result in any type of seepage or
discharge from the slope. The slope is well vegetated and there
are no groundwater or impermeable layer concerns. Ground water
mounding under the trench should not occur with this type of system
and soil type.
Please contact ]ne on this as we are holding construction for
this approval.
Sincerely,
Louis A. Butera, P.E.
EAGLE RIVER
ENGINEERING SERVICES
P. O. Box 773294
EAGLE RIVER, ALASKA 99577
Phone 694-5195
SHEET NO. OF
CALDULATED BY ~ DATE
CHECKED BY DATE
SCALE__
1,3 ¢+/.(~ 4 .,c¢~-
S,EET NO
CALCULATED BY .... ~ DATE
EAGLE RIVER
ENGINEERING SERVICES
P. o. 8ox 773294
EAGLE RIVER, ALASKA 99577
Phone 694-5195
~Compacted
soil layer
thickness
hould
7dDi~nage
~ Clay layer of
variable thickness
or other
impermeable
material
~s and leachate.
the seepage
e, void ratio,
~pirical obser-
bility can be
~dium and the
10 Disposal of Solid Wastes and Residual Mailer 341
propcrties of the fluid. 'Fhe relationship is
K = Cd~y- (10-6)
where C = dimensionless constant d = diameter of pores
7 = specific weight of water
/x = viscosity of water
The term Cd~ is known as the specific (or intrinsic) permeability k and is
thought to be a characteristic of the medium alone· Neglecting the effects
of temperature on density, we find that
K2 = 3q (10-7)
K~ ,%0
where Kc = laboratory standard coefficient of permeability defined as the
flow of water at 60°F in gallons per day through a medium
having a cross-sectlonaI area of Ift2 under a hydraulic
gradient of I ft/ft
Kt = coefficient of permeability at temperature t
`%o -- viscosity at 60°F
/xt = viscosity at temperature t
In feet-per-second units, the coefficient of peFmeability is expressed in
gallons per day per square foot, or feet per day. The conversion between
TABLE 10-7 TYPICAL PERMEABILITY COEFFICIENTS FOR VARIOUS SOILS
(La, MINAR FLOW)*
Matedal fdday gallda¥1ft:
Uniform coarse sand 1,333 9,970
Uniform medium sand 333 2,490
Clean, well.graded sand and gravel 333 2,490
Uniform fine sand 13.3 100
Well-graded silty sand and gravel 1.3 9.7
Silty sand 0,3 2.2
Uniform silt 0.16 1.2
Sandy clay 0.016 0.12
Silty clay 0.003 0.022
Clay (30 to 50 percenl clay sizes) 0,0003 0.0022
Colloidal clay 0.000003 0.000022
Note: ~'day x 0.3048 = m,'day
~0~8-'~69
,09 = ,,L
W31VM 30 3002
- +PH+I-H-H
-
-- 0
- ·
- []
iNINISV3
88-87
I Po~
'
IX
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