HomeMy WebLinkAboutLAKE HILL ACRES #2 LT 8Onsite File
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Engineer has confirmed that the 20 14 upgrade has not
E)EPFiRTI'dENT ~': HEFtLTH FIND ENVIF.:ONt'iENTFtL 'CTEC:TION
o-:,~ .-.L,- :;TREET., IqNCHORRGE., RK. ~5(J±
. 264-472~.'D
'" HR~-iE:.I.4F-: I TTEt-4 F'E~:U'""i
MUST BE ¢~BTFtINED FF.'_-M THE FILES - E:,KtTFt NOT R',,,'FtILFIE;LE IN THE C:O[,'IF'UTER
Don Setters
Post Office Box 10-1726
Anchorage, Alaska 99511
Legal Description: Lot 8 Lake Hill Acres Subdivision~
SEE ATTACHED LETTER FOR CONDITIONS OF THIS PERMIT
Issued: January 18,
A ol2cant S1 natu~'~'"//
January !7~ 19B3
~9511
Lot 8~ Lake ~fl~ Acres ~ubdivi~ion , ~.~i~ro~" --,h~
~r, ral ~",isti,w, ~onr~itiorw~ which ~rec]_ude die .{t~.l~.zat~on o::
A .,-,r, ~:r~e-~-;~c'-'< re~:triction from tho sh'~r,: line
;,r{.~.~:~..l// fluctuete seasonally
The most nracticai and economic method of on-sit;:~ subsux'face
d'' .... --"' ,~a~tewater %.;,hich would ': ....... ' ~ ~ ~" -
~ hove conditions
Sy,~tem. :I hermit for ou-sJ, te di~posal facilities On. hot 2 La]<e
Uiil Acres Dubdivi~i~)n No. 'l is granted ~.lt~der the fo!lovting
conditio!~s:
Compliance with all e×isting ?dunici~}al Code,.';
gti!isatiot'~ of a /qound Syste~ for sub:~urfac~~ absou~l.>tion
,'~isposal of the wastewater, The ~Tstem ?lans ami desiqn
retest bo aj~,:)~'ove.t by the Oepart~:teat of ~fealt]~,
method o~ -ji~)osa]. who~:eb,/ at lLea~'~t one trench it:~
alt,~avs in a period of dormancy for a rejuvenation
cycle.
(b) ehe ~llternating trenci~ method ,,,~itl E'!'i~.!.N% a ~'~y~te~,z
of divqrtin.:] valves anS manifolds.
(c) The ~-4ounc] System is a shallow system which pre'~ents
an inherent freezing hazard. The septic tank~ lift
chamber (if used)~ and Hound Syst¢~m must be
quatelv insulated.
(d) If lif~t facilities are necessary (between the septic
tank an(~ ~4ound Svstem)~ the lift chamber should be
designed such that the septic effluent is cycled into
the Mound System 3-4 times each 24 hour period.
(e) Monitoring stations (4"00 standpipe) will be
installed at the ~own slope end of each trench°
These standpipes shall be of ~" perforated plastic
9ipe, and ~all extend 6" into the insitu or native
soil bed underlying the ~ound Svste~n. An additional
monitoring station shall be ins~alied between the
Mound System and ~.he septic tank (or lift chamber) to
a total ~epth sufficient to penetrate at ].east 3'
into the groun<~ water strata.
(f) ~onitoring and/or testing practices shall include
(but not necessarily by limitec] to) subsurface tem-
peratures~ effluent quality, and ground ~ater' level.
The testing and saw, piing shall be performed each
,~nonth for a one year duration. On-site testing
sampling shall be perforated by .>!unicipaiity of
Anchorage Department of Health and Environn~ental
Protection personnel.
(g) On-site inspections shall be made by the Department
of Health, ~'208" Wastewater Study per~;onnel during
th~ follo~-~in~ incr(~mental stages of installation:
Preparation of the basal bed.
Completion of the n~ound construction prior
to insulation.
Final inspection including operation of flo~
during facilities,
The design criteria submitted by you and received by this office
on January 4, 1983 is satisfactory for a mound type wastewater
disposal system. It must b~ clearly under~tood that this con--
ditional ~oermit is subject to the terms and conditions outlined
herein, a~d is further governed by the construction criteria
outlined on your construction dragglings. Any variation from these
~esign criteria and conditions of the perrait ~ust b~ approved by
this office.
Sincerely,
Robert W. Robinson
Environmental Engineer
MUNICIPALITY OF ANCHORAGE
DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION
Pouch 6-650, Anchorage, Alaska 99502 276-2224
SOILS LOG- PERCOLATION TEST
SOILS LOG
[] PERCOLATION
TEST
PERFORMED FOR: Wi]ma Spearin
DATE PERFORMED: 1 1 -6-79
LEGAL DESCRIPTION: I.Ot 8:
1
3
4
5
6
7
8
9
Organics and organic
silt, moist, loose,
dark brown (PT-OL).
Sandy,silt few gravels,
moist, medium dense,
light brown (SM-ML).
lake Hill Acres Suhdivisinn
SLOPE
10
11
12
13
14
15
16
17
18
19
2O
SITE PLAN
WAS GROUND WATER
ENCOUNTERED? ,.YES
IF YES, AT WHAT
DEPTH7
Gross Net Depth to Net
Reading Date Time Time Water Drop
PERCOLATION RATE
TEST RUN BETWEEN
FT AND
(minutes/inch)
~ FT
COMMENTS
PERFORMED BY: CERTIFIED BY: DATE:
A cho ge _
825 "L" STREET
ANCHORAGE, ALASKA 99501
(907) 264-4111
GEORGE M. SULLIVAN,
MAYOR
DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION
December 17, 1979
Moening-Grey and Associates
715 L Street - Suite 8
Anchorage, Alaska 99501
Subject:
Mound Design - Lot 8 Lake Hill Acres Subdivision #2
The mound design is experimental in the Municipality and is
currently allowed on a limited basis to establish its
feasibility.
Your work up appears satisfactory, however, this is not an
existing structure and the proximity to Mirror Lake, an existing
high water table, in our opinion, does not justify permitting
of experimental systems. Effects on a lake used for swimming
and the unknown fact as to satisfactory operation of these
systems result in this department's recommendation that the lot
not be developed under these circumstances and denial of a permit
for this type of system.
If there are any further questions, please contact this office
at 264-4720.
Sincerely,
Les N. Buchholz, R.S.
Senior Environmental Specialist
LNB/ljw
MOEN NG-GREY & ASSOCIATES, NC.
GEOLOGISTS AND ENGINEERS
715 L STREET, SUITE 8 ANCHORAGE, ALASKA 9950!
TELEPHONE (907) 274-2314
December 4, 1979
Municipality of Anchorage
Department of Health & Environmental Protection
825 L Street
Anchorage, Alaska 99501
MUNICIPALITY OF ANCHORAGE
DEPT. OF t~,:~ALTH &
ENVIRONMENTAL PROTECTION.
'DEC 1 ' 197§
Subject:
Mounds Design-Sewer Disposal System
Lot 8, Lake Hill Acres Subdivision #2
Owner: Wilma Spearin
Gentlemen:
Enclosed for your review and approval is our design for a mound type sewer
disposal system for the subject property. The mound system is required
because of the high ground water condition of the property.
With this design, the necessary distances from wall and surface waters to
the disposal system are maintained.
Close supervision of the construction and adherence to the design specifications
are required to ensure proper performance of this system.
Please let us know if you have any questions.
Respectfully submitted,
MOENING-GREY & ASSOCIATES, INC.
Howard J'. Grey
HJG/lg
Lake Shore u,'ive
70'
Trench
~Boundary
Sideslope Area
From Wel 1
eL. Approx. Well bocation
Mirror Lake