HomeMy WebLinkAboutT12N R3W SEC 25 S2SE4
Rick Mystrom,
Mayor
Municipality of Anchorage
Department of Health and Human Services
825 "L" Street
P.O. Box 196650 Anchorage, Alaska 99519-6650
343-4744
August 18, 1995
William J Mills, Jr.
Elaine Mills
1544 Hidden Lane
Anchorage, Alaska 99501 4916
Subject:
T12N R3W Section 25 S½ SE¼ SE¼
Permit ~SW940302, PID ~017-072-01
The subject permit, issued August 18, 1994 by this office for a
single family well and/or on-site wastewater system, has
expired as of August 18, 1995.
A new permit must be obtained from this office for a well
and/or on-site wastewater system NOT installed by the
expiration date.
If you have drilled the well, a well
this office for documentation of the
close the permit.
log must be sent to
installation and to
If a licensed Professional Engineer has inspected the
installation of the on-site wastewater system, the original
as-built inspection report must be sent to this office for
review, approval and documentation. All inspection reports
must be submitted within 30 days of construction completion.
When applying for a new permit, the fees are: $320.00 for
on-site wastewater permit; $120.00 for a well permit and
$440.00 for a combined on-site wastewater and well permit.
an
If you have any questions, please call this office at 343-4744.
i~~r~srely' "
On-site Services
enc:
Copy of Permit
cc: Flattop Technical Services
PAGE 1 OF 1
MUNICIPALITY OF ANCHORAGE
DEPARTMENT OF HEALTH AND HUMAN SERVICES
P.O. BOX 196650, 825 "L" STREET, ROOM 502
ANCHORAGE, ALASKA 99519-6650
ON-SITE WELL AIYD WASTEWATER DISPOSAL SYSTEM PERMIT
PERMIT NUMBER:SW940302
DESIGN ENGINEER:FLATTOP TECHNICAL SERVICES
OWNER NAME:MILLS WM J JR & ELAINE
OWNER ADDRESS:1544 HIDDEN LANE
ANCHORAGE, AK 99501
DATE ISSUED: 8/18/94
EXPIRATION DATE: 8/18/95
PARCEL ID:01707201
LEGAL DESCRIPTION: T12N R3W SEC 25 S2SE4SE4
LOT SIZE: 999999 (SQ. FT.)
NUMBER OF BEDROOMS: 2 THIS PERMIT: 2
THIS PERMIT IS FOR THE CONTRUCTION 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)
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 SAME DAY
B. COVERED, SEALED AND HEATED TO PREVENT FREEZING
5. THE FOLLOWING SPECIAL PROVISIONS.
SPECIAL PROVISIONS:
RECEIVED BY: ~ ~ DATE:
CIVIL & ENVIRONMENTAL ENGINEERING * ENERGY CONSERVATION & ANALYSIS '
THEODORE F. MOORE, P.E. 14530 ECHO ST.
PH: (907) 345-1355 August 1, 1994 ANCHORAGE, ALASKA 99516
M.O.A. DHHS
P.O. Box 19-6650
Anchorage, AK 99519
Dem- Sh's:
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 for a 2 bedroom residence on the S 1/2 of the SE 1/4 of
Section 25, T12N, R3W, S.M., located off Lower Canyon Road. 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 fi.om the soil
log, the native material between 1.5' and 8' below original ground level is a coarse sandy gravel with a
measured perc rate of less than 1 minute per inch. Two feet of filter sand will be required. Using the soil
application rate of 0.7 gpd/sq, ft. specified in the wastewater ordinance for filter sand, this 2 be&'oom
residence requires a total absorption area of (2 x 150)/0.7 = 429 square feet. The proposed 15' wide by
29' long bed design has a total absorption area of 435 square feet. A lift station will be required, and the
distribution pipe hole size and spacing is designed to pass a total of 25 gpm with a residual head of 5 feet.
The topography in the area of the proposed construction is generally level.
The proposed project will have no 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.
l'"lattoP Technical Services
14530 Echo Street
~nchorage, Alaska 99515
WILLIAM ~- ELAINE: RILLS ?R~P~'R~Y
PgOPOSEb ~EPT/C SVSTE~
5 ~E PLAN
C::C,~LE: i"= 30'
PAT~ '7/ffq
NOTRE '. THIS 1<~ N, oT
SoRVE¥£b PLA"['.
ALL LOCAT)~NS
ARE APFRo~ I~ATF,
A
PLAN
L
.2, ~ MINIMUM SOIL ¢OVE~x. Hot, ti'l-mR TvS£
FIL..TEI~ F~BRIC ~ ~ J
I':. :..~,'.,.',,,.' : -'-~."~...-. ?.:~;O ~,¥ .7~ 5E~ER GRAVEL
I FI~TE~ ~4~D 2' F~T~ SAab
5ZCT~O~ A-A
Flattop Technical Services
14530 Echo Street
Anchorage, Alaska 99516
5Y=, SE '/,+, ,SEC 25.,
.SOIL ABSORPTION BED
PLAN AND CRosS
SCALE
DATE:
DwN B"/:
Flattop Techn~al Serv~es
14530 Echo Street, Anchorage, AK99516
Phone (907) 345-1355
Mills Property
S 1/2, SE 1/4, Sec. 25, T12N, R3W, S.M.
Lower Canyon Road
Wastewater disposal system installation
Specifications
1.0 General:
1.1 The scope of the project consists of installation of a 1250 gallon STEP tank which pumps effluent
into a 435 square foot soil absorption bed.
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 c. onstruction procedures and material specifications shall conform with Municipal m~d State
mqmrements. All separation distances shall be in conformance with Municipal requirements, unless
specifically waived.
1.3 The contractor shall be responsible to obtain any necessmy 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 them 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 1250 gallon, 2 compartment STEP 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.
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. A cleanout
shall be installed within 5 feet of the building foundation.
3.0 Lift station:
3.1 The lift station shall be installed in the second compartment of the STEP tank. The lift station
package shall be an "Orenco" system as supplied by Anchorage Tank.
3.2 The contractor shall be responsible to obtain the necessmy Municipal electric permit and
inspection, and shall provide a copy of the electrical inspector's report to the engineer overseeing the
construction of the wastewater disposal system.
3.3 The lift station shall be equipped with a watertight, insulated manhole riser and cover extending a
minimum of 6" above final grade with positive surface drainage away from the manhole. The contractor
shall be responsible for determining the necessm3~ length of the manhole riser.
3.4 The on, off, and alarm floats shall be set at the elevations specified by the lift station supplier, and
their proper operations shall be verified by the contractor. The alarm box shall be installed inside the
residence.
3.5 The discharge line from the lift station to the soil absorption system shall be 1.25" dia. Sched 40
PVC. All pipe connections in the distribution system shall be glued. The discharge line shall enter the
bed at an elevation at least as high as the top of the gravel and have a single 3/16" dia hole drilled in the
bottom at the high point.
4.0 Soil absorption system:
4.1 The soil absorption system shall be consla'ucted by excavating the 15' wide by 29' long soil
absorption bed to a depth of 4.5 feet below the original ground elevation in the vicinity of test hole #1.
4.2 The bottom of the excavation shall be level. A minimum of 2.0 feet of Municipally approved filter
sand with less than 4% passing the #100 sieve shall be placed in the bottom of the excavation. The use of
"Lake Otis Gravel" for filter sand is acceptable.
4.3 A total of 0.75 feet of approved sewer gravel shall be placed on top of the filter sand. Sewer
gravel shall be 0.5" - 2.5" washed gravel, with no visible silt particles clinging to the individual stones.
The perforated distribution pipes shall be laid level such that the pipe inverts are no less than 0.5 feet above
the bottom of the sewer gravel. The manifolds and perforated distribution pipes shall be 1.25" dia
Schedule 40 PVC. The distribution pipes shall have 3/16" diameter holes drilled in the bottoms spaced
3.0 feet O.C., beginning 0.5' from the manifolds.
4.4 Monitor tubes 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.
4.5 Approved filter fabric shall be placed over the enth'e 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.
4.6 The top surface of the cover material shall be raised a minimum of 6 inches higher than the
smu'ounding ten'ain to allow for subsequent settlement, and shall be graded to smooth contours. Fill
slopes shall be no steeper than 3:1.
4.7 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 al/areas disturbed by the construction.
5.0 Inspections:
5.1 A minimum of 5 engineering inspections will be requked 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 consu'ucfion procedures, (2) after the native material has been excavated to expose the
infiltrative surface to ensm'e that it is level and at the right elevation, and co~fforms with the soil test
information, (3) after the sand filter material has been placed, (4) after the sewer gravel is in place and the
distribution pipes have been laid and connected up to the STEP tank, but prior to placement of insulation
or filter fabric, and (5) after rough backfill and grading is complete. The STEP 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.
5.2 The installer shall coordinate the timing of the inspections with the engineer sufficiently fat- in
advance to ensure the availability of the engineer.
PERFORMED FOR:
~4530 Echo Street
Afichorage, laska 99516'
Municipatlty of Anchorage
DEPARTMENT OF HEALTH & HUMAN SERVICES
825 "L" Street, Anchorage, Alaska 99502-0650
SOILS LOG -- PERCOLATION TEST
LEGAL DESCRIPTION=
PT
5P1
2
GP
g~S9
~.a.
10
Township, Range, Section:SEC 2~,, TI2N ~'~,,/'
SLOPE SITE PLAN ~
14
· .. 15.
16-
17-
18 -
19-
20
WAS GROUND WATER
Reading
'P~EsoAk
Date
Time
Ii: Iq: 30
Net
Time
Depth to Net
Water Drop
I-/
PERCOLATION RATE .~'~ I (minutes/inch) PERC HOLE DIAMETER
TEST RUN SETWEEN ~.5' ~ AND L~.O FT ~
PERFORMED BY:
ACCORDANCE WITH ALL STA'TE AND MUNICIPAL GUIDEL NES IN EFFECT ON THIS DATE.
72~008 (R~v. 4/85)
CERTIFY THAT THiS TEST WAS PERFORMED IN
DATE: 10/8~ ~
14.530 Echo Street
Afichorage, Alaska 99516'
Munlc~paUty of Anchorage
DEPARTMENT OF HEALTH & HUMAN SERVICES
82§ "L" Street, Anchorage, Araska 99502-0850
SOILS LOG -- PERCOLATION TEST
PERFORMED FOR:,
LEGAL DESCRIPTION:
RILLS
Township, Range, Section:SEC.. 25/ TI2N SLOPE SITE PLAN
3
4
5
6
7
8-
9
10
11
12.
14
· 15
16
17,
18-
20
C_LEAN
COMMENTS ~.~t.T~. 5ET
~ATO"~ATEb 5tLT¥
SAN~ ~{~AVEL WAS GROUND WATER
(: LE.~NER' FEh/E~ ENCOUNTERED?
IF YES, AT WHAT
uep~h Io waler AJlere
Monlloring7 ~8 B.G.Z.Date:
Date
Reading
Gross
Time
Net Depth to
Time Water
PERCOLATION RATE -- (minutes/inch) PERC HOLE DIAMETER --
TEST RUNSETWEEN - FTAND . FT
t'tATER~ NOT AS CL~.AN AS 7.~. ~I
Net
Drop
PERFORMEDBY: FI. A1ToP T£¢14. SV~.S , ,~'.~..~,.~ '277~
ACCORDANCE W~TH ALL 8TA'TE AND MUNICIPAL GUiDELiNES iN EFFECT ON THIS DATE.
72-008 (Rev, 4185) ....
CERTIFY THAT THIS TEST WAS PERFORMED IN
DATE; /o /' ~ f"~ ~
PERFORMED FOR:. ~VILLI2i~
~,~.~ 1
2
3
4.
6
· 7
8
9,
10-
11
12
13
14-
15-
16
17
18-
19-
20-
Services
· , 14530 Echo Street ~.~
Affchorage, Alaska 99518'
Municipality of Anchorage
DEPARTMENT OF HEALTH & HUMAN SERVICES
-
¢ ~L~IME ~ILLS DATE PERFORMED=' '~ ~2~/ff2 ..... :'7
LEGAL DESCRIPTION:. -.~ I/:Z
SM REDDISH
GP
COMMENTS
825 "L" Street, Anchorage, Alaska 99502-0650
SOILS LOG -- PERCOLATION TEST
T.~.~3
54MDy £oAIVl
Township, Range, Section: SEC
SLOPE
WAS GROUND WATER
ENCOUNTERED?
25, TI2N , ~'~l,V'
SITE PLAN
· s
IF YES, AT WHAT / L
Date
Time
Reading
Net
Time
Depth to Nat
Water Drop
PERCOLATION RATE
7EST RUN BETWEEN
-- (minutes/inch) PERC HOLE DIAMETER --
· FT AND , FT ~
CERTIFY THAT THIS TEST WAS PERFORMED IN
ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIDELINES IN EFFECT ON THIS DATE. DATE: __/~ /(~' { ~ ~
72~008 (Rev.·4/85) ......... .
ENVIRONMENTAL ENGINEERING DIVISION
825 L Street- Anchorage, Alaska 99501 Telephone 264-4720
ON-SITE SEWAGE DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT
NAME
PHONE
[] UPGRADE
LEQAL DESCRIPTION
NO. OF BEDROOMS/
J~ t Manufacturer Materla] ' NO. Of
$~{ DISTANCE TO: Well Dwelbng PERMIT NO.
Manufacturer Material Liquid capacity in gallons
Well Foundation Nearest lot line PERMIT NO.
· - DISTANCE TO:
No. of lines Length of each llne Total length of lines Trench width Distance between lines
, inches
~ I Top of tile to finish grade Material beneath tile Total effective absorption area
inches
Length Width Depth B / PERMIT
Type of cri ~ diamete~ / ,. / Crib depth Total effective absorpt on are
DISTANCE TO:~'' ~ ~ ~ ~
Class Depth Driller Distance to lot line PERMIT NO.
DISTANCE TO: Building foundation Sewer line Septic tank Absorption area(s)
OTHER
INSTALLER
DATE LEGAL
72-013 (Rev. 3/78)
F:'ERH Z T Iq,E):
DATE i ,_xzd. JE .....
AF ,- J.... I C,~,-J ]
ADDRESS
CONTACT F'HONE:
87H:)~48 HAND WI:~ I TTEN
I :1. / 14/84
ELAINE M MILLS
i544 HIDDEN LANE
hN[.HOI~AUE, AK 99501
':"7° -'"' 'I 94
L..IEGAL )% ~(-,, ~ .t. I .
LOT SIZE:
SUBDIVISTON: S 1/2.~ SE 1/4 LOT: NA ,..L[JCI....R ~ ~-',,. NA
SECTION:
~.,~ [,~IA,~.~FI .... :L;2N RANGE: ~W "
80A (SQ. FT. OR ~CRc.=~)
certify that:
:[,, ][ am ,~'ar~;J. 1 :i. ap wi'U] 'Line r'equiremerYLs for' orr...si'Le sewers .and wel ].~ as set
fc)r'th by the Mtln:[cipa].J. ty of' Anchomage (MOA) and 'Lhe State of AIasl<a.
2. I u,d.].l ins'tall the eys'Lem ie accoPdance with'all MOA c:x~des and r~gu:L.a'L:[ons,
and in c:c~mp].iance ~it.h 1:lne deSigl') cr'itE~Pia (:)f finis per'mit.
3. I will adhere to ail HOA and State of AIaeka requirements rcm the eet back
dis'Lances fi"om any exist:Lng we:!.i~ waetewa'Ls:r' disposal system of public
set, el-age sys'L, em on this oP ar]y adjacent o~~ near'by J. ot,,
,'IF A
]"HEN
WILL.
. I_E.,.],~U WOF.'K MUST BE DONE BY A I...]:CENSED ELE[]TIR:[C:[AN,
.. ]. ,.,N,...b DATE[:
RP:'F'L:[CAN]'~ E[._2~NE Id MILLS
]:SSUED E~Y ~ ~ DATE:
I-.IFrT STATION IS ~-:'""~
· II'l,. 1(- ...... D IN .AN ARErA L,_)V.:r.,'kED'~- Fy, '~ ?,/ ~',OA O.L,.i. JD.i.i,_.~,-', " b:' C[]D,z.,.)~ ,'"'c'
(I) AN FZJ:.,,RI(..,~._. F'EFWiI]' AND II .... E.,.,I.,O.I',I I"IUS]" E':E []BTP, INEED: C'.Z) R,.~ .,.,L, IL.I~
N[]'I" BE'-- APIZ'I-]:OVED. I 'T'I .~ "" J~ n" "r[;:Ti-~ T,~(: ..... ~ .-,,::'~:,'"~..',~',. ([:..';) "r~.l::'
~]Z -IC..,I AN E..L.~..C,,~.._,Af. .. I,.FLCT.!.,.J,,I 1,1...., L,R, ,, AND I_..
IViUNICIPALITY OF ANCHORAGE
DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTECTION
825 L. Street, Anchorage, Alaska S9501 264-4720
SOILS LOG - PERCOLATION TEST
[] PERCOLATION
TEST
PERFORMED FOR:
LEGAL DESCRIPTION:
1
2
3
4
5
6
7
8
9
10
11
13-
14-
15-
16-
17
18
19
20
COMMENTS
./ZAX ,
Dale R. ger~
r~%~{~ WAS ~aOUmO WAT[R
ENCOUNTERED?
SLOPE
SITE PLAN
IF YES, AT WHAT E
DEPTH?
Reading Date Gross Net Depth to Net
Time Time Water Drop
PERCOLATION RATE
TEST RUN BETWEEN
FT AND
.(minutes/inchl
, FT
PERFORMED BY:
DATE:
7 :~-008 {6/79)