HomeMy WebLinkAboutT12N R3W SEC 21 N2NW4NE4SE4 PARCEL 5BPermit Number:OSP261014
Tax Code Number:01528102000
Work Type:Septic Upgrade
Effective Date:
Design Engineer:
Site Legal Address:T12N R3W SEC 21 N2NW4NE4SE4 PARCEL 5B G:2735
Owner:SIIRA ROBYN R & RICHARD L
Site Mailing Address:3900 E KLATT RD, Anchorage
Lot Size in Sq Ft:217800
Total Bedrooms:2
This permit is for the construction of:
Disposal Field Septic Tank Holding Tank Privy
Non-Public
Water Well Water Storage
All construction shall 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 wastewater code requires inspections during the installation. The engineer shall notify the Development
Services Department per AMC 15.65. Coodinate with On-Site staff regarding preferred method.
4. From October 15 to April 15, a subsurface soil absorption system under construction during freezing weather
shall be either:
a. Opened and Closed on the same day, or
b. Covered, sealed, and heated to prevent freezing
2/18/2026
2/18/2027
FORGE ENGINEERING
Expiration Date:
þ ¨¨¨¨¨
Issued To:
Issued By:
Date:
Date:
2/18/2026
2/18/2026
FORGE ENGINEERING
Isatou B Njie
MUNICIPALITY OF ANCHORAGE
On-Site Water & Wastewater Program
PO Box 196650 4700 Elmore Road
Anchorage, Alaska 99519-6650 Phone: (907) 343-7904 Fax: (907) 343-7997
http://www.muni.org/onsite
On-Site Wastewater Disposal System Permit
MUNICIPALITY OF ANCHORAGE
Development Services Department -343-7904
Phone:907
On -Site Water & Wastewater Section
ON-SITE SEPTIC/WELL PERMIT APPLICATION
Parcel I. D. 015-281-02
Property owner(s) Robyn & Richard Siira Day phone
Mailing address 3900 E Klatt Rd, Anchorage, AK 99516
Site address 3900 E Klatt Rd, Anchorage, AK 99516
Legal description T12N R3W Section 21 N2NW4NE4SE4, PARCEL 5B
Number of Bedrooms 2
Engineering Firm forge Engineering
Building Permit Number
Not Applicable FE -1
APPLICATION IS FOR: APPLICATION IS AN:
(Z all that apply)
Absorption Field
El Initial ❑
Septic Tank
El Upgrade
Holding Tank
❑ Renewal ❑
Privy
❑
Well
❑
THIS APPLICATION INCLUDES A WAIVER REQUEST FOR:
Permit/Rush Fees:
Date of Payment: C-)
Permit No.
Waiver Fees:
Date of Payment:
Waiver No.
Distance:
February 18, 2026
MOA Development Services, On-Site Water & Wastewater Program
4700 Elmore Rd
Anchorage, AK 99507
Subject: T12N R3W Section 21 N2NW4NE4SE4, Parcel 5B – 3900 E Klatt Rd
Septic system design
Dear On-Site Services Engineer:
The owner of the above lot owns a 2-bedroom home on the property. They are planning on building
a garage with a foundation on/near the existing trenches, so we are submitting this permit
application for the construction of a new drainfield to ensure separation distances are met. The
attached site plan identifies the location of the home as well as the existing well and septic location.
No conflicts exist between this proposed system and any other well or septic system, whether on
this lot or adjacent lots.
The ground surface on the lot slopes from the east to the west. Most of the lot has a mild slope of
10% or less. While there are some sections of 25% slopes on the westernmost side of the lot, there
are no slopes greater than 25% within 50 feet downslope of the proposed trench. Contours are
shown on the site plan showing the grade and direction of flow. Stormwater drainage will not
impact this septic system. The new trench will be constructed parallel to the slope as much as
possible. Wells on this and adjacent lots are shown. The new system will be a minimum of 100’
from all wells and surface water, and more than 5’ away from the septic tank.
Please refer to the attached test hole log, plan and profile pages for the septic design. If this design
is followed, there will be no adverse impacts to adjacent properties.
Sincerely,
Benjamin Schiller, PE
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP261014, Isatou Njie, 02/18/26
CO - CLEANOUT
2CO - DOUBLE CLEANOUT
FCO - FOUNDATION CLEANOUT
FD - FLOW DIVERTER VALVE
MH - MANHOLE
MT - MONITORING TUBE
SV - SEPTIC VENT
TH - TEST HOLE
LEGEND
1"=50'
T12N R3W SEC 21 N2NW4NE4SE4, PARCEL 5B
FEET
0 50 100Benjamin Schiller
CE 12592REGISTEREDPROFESSION A L E N GINEER
2/10/26
SEPTIC PLAN
TH#1
8.0'
MT
MT
2-BDRM HOME
DECOMMISSION EXISTING
TRENCHES PER AMC 15.65
SHEDS
DOG RUN
WOOD ENCLOSURE
EXISTING TANK AND LIFT
STATION TO REMAIN IN SERVICE
PAVILLION
SHED
BARN
CONNEX
EXISTING WELL
NEW 60' LONG X 5'
WIDE, 4' EFFECTIVE
DEPTH TRENCH
WOODHAVEN #3, LOT 5 EXISTING
WELL 100' RADIUS
WOODHAVEN
#3, LOT 4
EXISTING WELL
<100' FROM
VIEWPORT
VACANT
FUTURE GARAGE PLANNED TO
BE BUILT IN THIS AREA, ENSURE
10' FROM PROPOSED TRENCH
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP261014, Isatou Njie, 02/18/26
LEGAL DESCRIPTION:
PERFORMED FOR:
DATE: PARCEL ID#:
SOILS LOG AND PERCOLATION TEST
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
DEPTH
(feet)
TEST HOLE 1
DATE READING NET TIME
(minutes)
DEPTH to
WATER NET DROP
PERCOLATION RATE: (MIN/INCH)
(inches)(inches)
DATE OF MONITORING
DEPTH TO WATER AFTER MONITORING
5.4
11/21/25 1
2
3
SM (SILTY SAND w/ GRAVEL)
Professional Engineers Stamp:
T12N R3W SEC 21 N2NW4NE4SE4, PARCEL 5B
11/21/25 015-281-02
RICHARD SIIRA
4 14
16
8" OB
30
Benjamin Schiller
CE 12592REGISTEREDPROFESSION A L E N GINEER
PERC TEST LOCATION
TECHNICIAN: Jared earls
10 8
16
None
11/28/25
COMMENTS:
SITE PLAN
5 10
16
USCS SOIL CLASSIFICATION WAS VISUALLY DETERMINED EXCEPT WHERE NOTED.
12/9/25
MOISTURE NOTED AT TIME OF DIGGING?YES
5 0
1630 10 8
16 5 8
16
5 0
1630 10 8
16 5 8
16
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP261014, Isatou Njie, 02/18/26
T12N R3W SEC 21 N2NW4NE4SE4, PARCEL 5B
TYPICAL TRENCH SECTION
(NO SCALE)
NOTES:
1. GRADE AREA OVER TRENCH TO DRAIN AWAY
2. PROVIDE 3' OF COVER OVER TRENCHES AND 4' OVER SEPTIC TANK, OR 2'
WITH 2" OF INSULATION
3. CHECK GROUNDWATER AT TIME OF CONSTRUCTION. IF LEVEL IS HIGHER
THAN PREVIOUSLY OBSERVED, CALL ENGINEER IMMEDIATELY
Benjamin Schiller
CE 12592REGISTEREDPROFESSION A L E N GINEER
DRAINFIELD ROCK
2'-6"
4'
DESIGN FACTORS:SYSTEM REQUIREMENTS:
450 GPD PEAK FLOW
PERK RATE: 5.4 MIN/IN
APPLICATION RATE: 0.8 GPD/SF
(CONSERVATIVE)
5' WIDE TRENCH SYSTEM
EXISTING 1000-GAL SEPTIC TANK w/ LIFT
STATION
BOTTOM OF TRENCH: 7.0' BELOW GRADE
FLOW LINE ELEVATION: 3.0' BELOW GRADE
450 GPD / 0.8 GPD/SF / 5' WIDE * 0.50 RED FACTOR [4.0' DEEP] = 56.3 LF TRENCH REQUIRED
(60.0 LF SPECIFIED)
GEOTEXTILE FABRIC
6"
2/10/26
PROVIDE ADDITIONAL FILL TO
ACCOUNT FOR SETTLEMENT
5'
6"
6"
11
4" PVC w/ 1
8" ORIFICES
EVENLY SPACED @ 3.0'
OC
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP261014, Isatou Njie, 02/18/26
SHEDS
BA
R
N
JE
N
K
I
N
S
S
U
B
D
I
V
I
S
I
O
N
LO
T
1
E KLATT ROAD
10' UTILITY EASEMENT
N1
2, NW1
4, NE1
4, SE1
4
Section 21 T12N R3W
Seward Meridian
217,800 Sq. Ft. +/-
3900 E Klatt Road
2 Story Wood Frame House
with Attached 2 Car Garage
28.2
20
.
2
N89° 59' 45"W 660.40
N0
0
°
0
8
'
1
0
"
W
3
3
0
.
0
9
PAVI
L
L
I
O
N
OHUOHUOHUOHUOHUOHUOHUOHUOHUOHUOHUOHUOHUOHUOHUOHUOHUOHUOHUOHUOHUOHUOHUOHUOHUOHUOHUOHUOHUOHUOHUOHUOHUOHUTTTEDESIGNED BY REBelMB
G
SC
12
.
4
1
5
.
7
139.3
100'
WELL
RADI
US
OH
U
OH
U
OH
U
OH
U
OH
U
OH
U
OH
U
OH
U
OH
U
OH
U
OH
U
OH
U
OH
U
OH
U
OH
U
OH
U
36
.
5
CONNEX
SEE DETAIL "A"
65
.
8
1
0
.
2
1
0
.
2
9.820.
2
12.
2
8
.
1
19.6
40.0
8.
0
8.
0
PAVER
RET. WALL
TYP.
ROCK
TYP.
GATE
N89° 59' 50"W 660.38
S SSSS S
S
20' UTILITY EASEMENT
SM.H.
SIEFKER SUBDIVISION 2, BLOCK 4
LOT 2 LOT 3 LOT 4
WOODHAVEN SUBDIVISION ADDN. NO. 3
LOT 5 LOT 4TRACT C
WOODHAVEN SUBDIVISION ADDN. NO. 2
N0
0
°
0
7
'
5
9
"
W
3
3
0
.
0
7
14
7
.
7
OH
U
GR
A
V
E
L
D
R
I
V
E
W
A
Y
12.
0
11.9
PAVED
DRIVEWAY
EDGE OF PAVEMENT
T
JE
R
O
M
E
S
T
R
E
E
T
33
'
R.
O
.
W
.
30
'
R.
O
.
W
.
N12 N
1 2 N
E
1 4 N
W
1 4 S
E
1 4
SE
C
.
2
1
T
1
2
N
,
R
3
W
S12 N
1 2 N
E
1 4 N
W
1 4 S
E
1 4
SE
C
.
2
1
T
1
2
N
,
R
3
W
30
'
R
O
A
D
W
A
Y
&
U
T
I
L
.
E
A
S
E
M
E
N
T
XXX
X
XXX
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X X
X
X
X X
X
X
X
X X X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X X X X X X X X
X
X
X
81
.
5
11
9
.
8
179.5
E
W
54
.
2
110.2
134.9
S
H
E
D
PREPARED BY:
FRONTIER SURVEYS, LLC
650 W. 58th AVE. SUITE E, ANCHORAGE, AK 99518
907-460-1686
DRAWN BY:
CHECKED BY:
DATE:
SCALE:
DRAWING ID:
SHEET 1 of 1
1. Excepting for gross negligence, the liability for this survey shall not
exceed the cost of preparing this survey. Dimensions to property lines
are plus/minus 0.1ft.
2. This document is created by Frontier Surveys for the purpose of an as
built survey for Richard Siira, only.
3. This document is based on Plat No. 78-22, Anchorage Recording District
& B.L.M. TWP Survey approved August 7th, 1917.
General Notes DisclaimerLegend
1. This survey complies with the ASPLS Mortgage Location Standards. The survey
represents visible improvements and conditions at the time of the survey. This document
does not constitute a boundary survey and is subject to any inaccuracies that a
subsequent boundary survey may reveal. It is the responsibility of the Owner to determine
the existence of any easements, covenants, or restriction which do no appear on the
record plat. Under no circumstances should this document be used for construction or for
establishing a boundary or fence line.
PS 1" = 50ft
4/20/2022 22-AJS
Scale 1" = 50'
AN AS BUILT SURVEY OF
N1
2, NW1
4, NE1
4, SE1
4
T12N R3W Sec 21
CONTAINING: 217,800 Sq. Ft. +/- (RECORD)
RECORD PLAT: 78-22 & BLM TWP SURVEY
APPROVED AUG. 7TH, 1917
R
E
GISTEREDPROFESSIO N A L L A N D S U RVEYORPierre M. Stragier
No. L.S. - 9812
4/20/2022
Electric Meter
Tel. Pedestal
Over Head Utilities
Fence
T
G Gas Meter
Telephone Pole
Found Rebar
Found Monument
Septic
Water WellW
Septic Clean Out
S
SC
SatelliteDESIGNED BY REBelE
Elec. & Water Stubout
Septic Man HoleM.H.
Concrete
Sign
Culvert
[
Mail BoxMB
M1
M1
FOUND 3 1 4" BRASS
CAPPED MONUMENT
HVL
JENKINS
LOT 1
3745-S
1976
__, Municipality of Anchorage Page I of
DEPARTMENT OF HEALTH AND HUMAN SERVICES
ENVIRONMENTAL SERVICES DIVISION
P.O. Box 196650 · Anchorage, Alaska 99519-6650 · Telephone: 343-4744
On-Site Wastewater Disposal System and/or Well Inspection Report
Permit Number: 5~JqHoHH ~- PID Number:
Name:. ~?~-~/~/5 (~J~p~.. Wastewater System: ~New ~ Upgrade
~'~: ABSORPTION FIELD
Phone: ~_~ No. of Bedrooms: ~ ~ Deep Trench ~ShallowTrench ~Bed ~Mound ~Other
Soil Rating: Total Depth from original grade:
LEGAL DESCRIPTION ¢.~¢ ~,~/s,.,t.
Lot: Block: Subdiv~[on: Depth to pipe bottom from original grade: Gravel depth beneath pipe
Township~ Rang~: ~ 8ecti°m ~1 Filt added above original grade: Gravellength: I~G'/ I~J
WELL: ~ New D Upgrade Gravel width: ~ I Number of lines: 0istance between lines:
Ft. ~ t ~ Ft.
Classification (Private, A,B,C): Total Depth: Cased To: Total absorption area: Pipe material:
Date Drilled: Static Water Level: Installer: Date installed:
Yield: Pump Set at: Casing Height Above Ground:
{~+ GPM ;~O Ft. lt. ,,. TANK
SEPARATION DISTANCES ASeptic U Holding U S.T.E.P.
To Septic Absorption Lift Holding Public/Private Manufacturer: Capacity in gallons:
From Tank Field Station Tan~ Sewer Lines A~ ~O~ ~
Well' [~ ~ i~~ i~I ~ ~14 Material: ~ Number°fC°mpartments: ~
Sudace
W~te~ too'* ~'+ ~'~ ~ ~ LIFT STATION
Lot . I~1~ ~ ~ ~OO A~c~o~ ~ ~
Line I~ ~ t ~ i Size in gallons: Manufacturer:
"Pump on" level at: "Pump off" level at: High water alarm at:
Foundation ~ I ~ I~ I I I ~ ~ ~ ~ /' ] ~ /I ~ ,,
CuHainDrain ~ ~Ob~~ ~~. ~ PumpMake&M0deloSl O~H J Electrical Inspections pedormed by:
Remarks: ~L~T[o~ ~gl~ BENCH MARK
LL~ ~ ~0~ b~ T~ C~*OF~ Location Description:
Assumed Elevation: I~O,O ~,
"
30 Ho~5 70 TAL .~
Inspections performedW~4~l~mwr L~ R~8, N~'=~Dates' 1st ~-~5-q5
- E~g~e Rlve~, Alaska ~5~ ' ~ - I H -~ ~ ~~ .......
Department of Heal~ and Human Services approval ~.~ c~.~a0i .,.~
Reviewed and approved by: Date: ~--/2-- ¢~ 'k-'''~;,
72-013 (Rev. 9/91) MOA 25
· Permit No. sW940445 Page 2 of 2
Municipality of Anchorage
DEPARTMENT OF HEALTH AND HUMAN SERVICES
ENVIRONMENTAL SERVICES DIVISION
P.O. Box 196650 · Anchorage, Alaska 99519-6650 · Telephone: 343-4744
On-Site Wastewater Disposal System and/or Well Inspection Report
T12N R3W SEC 21 N2NW4NE4SE4 01528102
Legal Description: PID No.:
CO1
NEW
'"iU6~i"~
SEP'r!C
TANI~
NORTH ~/L
APPR0~.
WELL il
LOCATION
COZ
GRADE
GRADE --
C01
NE~
k
S06 MT
A.i91..5' WATER FOUND 6-13-95
F'Cq ~2' -- 6'
ST1i 25' -- 18'
STZ:~18' -- 2.~'
CO'~i17' -- 26'
CO~ 16' -- 2'7'
..C....O..~.., ..:LS..~., ..~:.~_~ .g.~:
MHi 14' -- 29'
MTli 22' 42' -~-
MT2 50' 37' -~
MT~ 36' 52' -+
MT4 58' 50' -i
$CAL~
NEW 5DO GAL
S.T.~o..T~K ...............................................................
72-013 A (1/93) *
ROBERT C. COWAN
CE ' 8801
rie 1" = 50'
trti 3
N
ZN
Z N
.in W
C (/J
rru-
CO
LU
y�
ZN
ti
N
IW
y
.e
�3
I�
SIEFKER SUBDIVISION 2, BLOCK 4
LOT2
LOTS
LOT4
E KL4TT ROAD
3
EDGE OF PAVEMENT
Ir
C
N8D'59'45'W 880.40
- ---
v;
x
GATE
m
\
M1
z
..
\
1
PAVER
^ P�
SHEDS
98 +
+
110.2
M1
HVL
400
...
I I
0
179.5
.
...
.Id
CNKINS
CONNEX
. ... ..
AVED
PORIVEWAY
976
I
CAPPED MONUMENT
I I
..
0
+
NWJ NJ SEJ
SEE DETAIL 'A•
x
I I
/
Section 21 T12N R3W
_
139.3
I I I
+
Seward Meridian
S
+
I I
217,800 Sq. Ft.
I I
3900 E 10a0 Road
vJ
2 Stay Wood Frame House
j
wf8F Attached 2 Car Garno
n
I
p
D0
I I I
k
}
mo
to
134.9
\}
I I
\ x
ROCS(
I I \ Tw•
.--_..x —x �+ +
ICI +
' 20IITIUTYFIISEMENT �x �-x � + +
7 T N89.tip S0•W 680.98 10'UTILlII'EASEMENT
CT C
I I I WOODHAVEN SUBDIVISION ISION ADDN. NO. 2 I LOT 5 LOT 4
WOODHAVEN SUBDIVISION ADDN. N0.3 I
Legend General Notes Disclaimer
X Electric Meter -x-Fence Sign 1. Excepting for gross negligence, the liability for this survey shall not I•Ttbw "wmWeawnh SPLS Mwgne Ln n Stanmrda. TM wmy •ANaseuursUa OF
exceedthe cost of preparing this survey.Dimenslonsto roe lines fep`e=wz"tb"Lmp1OVe rft "a"Atl1tl mst ameormeaF.�,ey'Tnud« M g •' :9 N� ryHI} NE} SE}
Gas Meter -au-Over Head Utilities Septic p p gp p m' aoaar mtuW amr. wyu y,W1, n mam ireewrdne to
are plus/minusO.lft..ob.eeamtwvW.q•aweymaymmtft"me..Por.NWdU.OAnermdd.mm,a •,* T12NR3WSec21
/� •%' a exbaenmofartyeawm rft.ao"nuiaa,or W ki$mwNchdowappearonam
LTA Tel. Pedestal c-(LTelephone Pole r 1ISeptic Clean Out 2. This document is created by Frontier Surveys for the purposeofanas •• CWNN1NG:217,N)0Sµ Fb.
z rewrd plat unaer no tlrcurrmtanxa r,ow w. aowmad be oaea roroonmoewn or ar / IaFconDl
Satellite Found Rabat ^ Se tic Man Hole built sucrvey forument Richards on
e.uaw.hW.bouday or feMe ane. fQWap PFAT:TDAUG. ,1917ueVEy
P 3. Thfs document Is based do Plat No. 78-22, Anchorage Recording District .. APPaovFoauG.7rN, 1917
Concrete ®Found Monument (w; Water Well &B.LM. TWPSurvey approved August7th, 1917. •• Pierre •SU,aRaD�; ier•
03 Culvert Elec.&WaterStubout Lf]fMall Box 0 25 50 100 NO L.$-9D72 ,:r %IFPANED aT:
l moNnmsunveys, uc �B-
,••S� ��.SiN�6YE5Um F.ANCIOPAGF. AK 99518
Scale in Feet °ROfESSpNN` �+ °p^wN�°n b^TE°r r— 1auwiNG io nA
cxrara Frc:n xA�c: F•.sar SMEETI dl
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 AND WASTEWATER DISPOSAL SYSTEM PERMIT
PAGE 1 OF 1
PERMIT NUMBER:SW940445
DESIGN ENGINEER:S & S ENGINEERING
OWNER NAME:CLAPPER CHRIS D & BECKY L
OWNER ADDRESS:211 B EAST DIMOND BLVD.
ANCHORAGE, ALASKA 99515
PARCEL ID:01528102
LEGAL DESCRIPTION: T12N R3W SEC 21 N2NW4NE4SE4
DATE ISSUED:12/05/94
EXPIRATION DATE:12/05/95
LOT SIZE: 217800 (SQ. FT.)
NIIMBER 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 ANCHOPJIGE 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.
HEALTH AUTHORITY
APPROVALS
SEWER&WATER
MAIN EXTENSIONS
SEWER&WATER
INSPECTION
ENGINEERING STUDIES
AND REPORTS
WELL INSPECTION
& F LOW T ES T
ROAD DESIGN
SOILTEST
PERCOLATION
TEST
STRUCTURAL &
MECHANICAL
INSPECTIONS
ON SITE
WAS'[EWAT ER
DISPOSAL SYSTEM
DESIGN
ROBERT C. COWAN, RE.
ROBERT A. SHAFER, P.E.
November 16, 1994
CIVIL ENGINEERS
(907) 694-2979
FAX (907) 694-1211
Municipality of Anchorage
DEPARTMENT OF HEALTH AND HUMAN SERVICES
825 'L' Street
P.O. Box 196650
Anchorage, Alaska 99519-6650
REFERENCE: North ½, NW¼, NE¼, SE¼, Sec. 21, T12N, R3W, S.M.
Request you issue a permit to drill a well and install a septic system
to serve the proposed twobedroomhou~eomthe referenced property.
Test holes were excavated and percolation tests performed. The
approximate location of the test holes are located on the attached site
plan.
The monitoring tubes within the test holes have been checked and found
to be dry.
Attached is the proposed upgrade design. This property has enough area
for a future septic upgrade which can be seen on the attached site
plan.
The secondary septic system will serve the proposed barn. The barn
will not be used as a living area.
We do not anticipate any adverse effects on neighboring properties by
the installation of the proposed septic system. There are no points of
contamination within the proposed well radius which can be seen on the
attached site plan.
If you have any questions, or require additional information for your
review, please contact us.
Sincerely,
Robert C. Cowan, P.E.
RCC/SU/jk
Enclosures
17034 NORTH EAGLE RIVER LOOP "SUITE 204 · EAGLE RIVER, ALASKA 99577
m
LEGAL NORTH 1/2, NW1
DRAWN J. ANDERSON I CKD. J W DATE11 -16-94 SHT.OF
SECONDARY
DESIGN CRITERIA:
BARN = 150 GPD
SOILS = 0.45(ESTIMATE- BASED ON OTHER TH'S)
R FACTOR = 0.58
150/0.45 = 333 SQ.FT. REQ'D
SECONDARY
DRAINr IELD:
5' WIDE
5' DEEP
3' EFFECTIVE
39' LONG
(SEE NOTE)
DRAINFIELD
REVISED 12-2-94
STRUCTURES, EASEMENTS, OR ENCROACHMENTS
SHOWN ON THIS SITE PLAN ARE AS SHOWN ON
AN AS -BUILT SURVEY DRAWN BY:
ROBERT E. JOHNS JR. & ASSOC.
IT IS THE RESPONSIBILTIY OF THE CONTRACTOR
TO VERIFY EASEMENTS, REQUIRED SEPARATION
NORTH P/L DISTANCES, AND PROPERTY LINES PRIOR TO
CONSTRUCTION.
PROPOSED WATER LINE
FROM WELL TO HOUSE.
-PROPOSED WATER LINE
FROM HOUSE,
PROP. W
X 395' 0 WEST P/L WELD 262' TO
/
/w/ o /�
/
dMT W /
TH TO BE EXCAVATED AT TIME
SOF CONSTRUCTION TO VERIFY
SOILS. /
-PROP. 1000 'GAL. SEPTIC. TANK
NOTE: PROP. SEFTIC SYSTEM TO SERVE BARN
W/ 2 SINES, FLOOR DRAINS, AND HOSE BIB.
APPROX. DISPOSAL IS 150 GPD.
ALL PORTIONS OF SYSTEM
WITH LESS THAN 3.5' OF
COVER REQUIRE INSULATION.
SOUTH P
iQrcEC10'��'`\`� �
DESIGN CRITERIA:
3 BDRM = 450 GPD
SOILS = 0.45 GPD/5Q.FT.
R FACTOR = 0.54
450/0.45 = 1000 SQ.FT. REQ'D
DRAINFIELDS:
� 5' WIDE
6' DEEP
.d 3.5' EFFECTIVE
� 108' TOTAL LENGTH
(254' LONG EACH)
MINS
M u+M c<+''vs
PROP. DRAIPdFIELDS
1!il
IICL��I �LI�JIo
N
ALT.
CONTRACTOR IS REQUIRED TO
OBTAIN UTILITY LOCATES
PRIOR TO ANY EXCAVATION
WORK.
PROP. 1000 GAL.
SEPTIC TANK
SITE
CLIENT
; ROBERT C. COWAN ?@
f% CE -8801 •,,.C`
OF.
W
""'NORTH 1/2, NW1 4, NE1 4, SE1 .4, T12N, R3W, SEC.21
cRAwNJ. ANDERSON cKo. J.W. cATE11 —10-94 SHT2 OF 2
2" BURIAL INSUL
C F810 PERF. DIE
4" D3034 P.V.0
PROP. DRAINFIELDS
* 2 BDRM HOUSE -3 BDRM SYSTEM
CLEAN OUT
47 D3034 P.V.C.
MONITOR TUBES n SOLID
4' D3034 P.V.C.
SOLID UPPER
za
OBERT C. COWAN
CE - 8801
a
2" BURIAL INSULATIONS a S
4" F810 PERF. DISTRIB13TOIN PIPE
4' D3034 P.V.C. PERF. LOWER— a ;
SECONDARY DRAINFIELD
*BARN ONLY
QF
f"
fi .aon. ca.� .••': ary ��.
GRADE
OBERT C. COWAN
CE - 8801
GRADE
PERFORMED FOR:~c~t~ ~C~P~ DATE PERFOR~.uPe~,~kfI-~
~.~ ~s~.,.~,o.: ~ Yz, ~'f~f HeYs. ~Township, Range, Section: T/A~, l~g~,
SLOPE SiTE PLAN
Municipality o! Anchorage
DEPARTMENT OF HEALTH & HUMAN SERVICES
825 "L" Street, Anchorage, Alaska 99502-0650
SOILS LOG -- PERCOLATION TEST
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
WAS GROUND WATER ~ '""~ ~ "~:,
ENCOUNTERED?
L
IF YES, AT WHAT O
DEPTH? p
E
Oepth to Water After ./_/_
Monitoring? ~1-~,~ Date: [O('i,~ ¥~
Gross Net Depth to Net
Reading Date
Time Time Water Drop
PERCOLATION RATE ''--~(~) (minutes/inch) PERC HOLE DIAMETER
TEST RUN BETWEEN ~ FT AND L.~ FT
COMMENTS 1,1-t. ~Z~-?~ ~)y ~JC~--'~ ~'e,r~-
ACOORD^NOEW,THAL'STATEAND, NiO,PA' i EL'N E EOTONTHi OA E. OATE: rfli '
72-008 (Rev. 4185)
Municipality of Anchorage
DEPARTMENT OF HEALTH & HUMAN SERVICES
825 "L" Street, Anchorage, Alaska 99502-0650
SOILS LOG -- PERCOLATION TEST
LEGALDESCR.PT.O.: ~ ~.9-, /~l, Jy~! ~J~/(z/./._~/ownship, Range,$ection: T/'..~/
· SLOPE SITE PLAN
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
2O
¢~I~.-'~,V (~ WAS GROUND WATER ~,..~(~
'~"/..(l~T L~ ENCOUNTERED?
S
IF YES, AT WHAT ~ ~
DEPTH? p
E
Depth to Water Alter
Monitoring? Date:
Gross Net Depth to Net
Reading Date Time Time Water Drop
z-l; 6p. pf,,.~ q '/,,," ~
; ~2- ~.o,,,t,~ Y~,f" V~,"
~q~ ~o ~ ~'1~ ~I~"
PERCOLATION RATE ~ (minutes/inch) PERC HOLE DIAMETER
TEST RUN BETWEEN ~ FT AND q FT
PERFORMED BY: .... 't~~ 2 ~CERTIFY THAT [.'SjTEST WAS PERFORMED IN
I L' IN EFFECT ON THIS DATE DATE '
ACCORDANCE WITH ALL STATE AND MUNICIPAL GU DE ~INI · :
72-008 (Rev.
HEALTH AUTHORITY
APPROVALS
SEWER&WATER
MAIN EXTENSIONS
SEWER&WATER
INSPECTION
ENGINEERING STUDIES
AND REPORTS
WELL INSPECTION
& FLOW TEST
SITE PLANS
ROAD DESIGN
SOIL TEST
PERCOLATION
TEST
STRUCTURAL &
MECHANICAL
INSPECTIONS
ON SITE
WASTEWA'[ E R
DISPOSAL SYSTEM
DESIGN
ROBERT C. COWAN, P.E.
ROBERTA. SHAFER, P.E.
March 30, 1995
CIVIL ENGINEERS
(907) 694-2979
FAX (907) 694-1211
MUNICIPALITY OF ANCHORAGE
D6part~nt of H~alth and Human S~rvices
P.O. Box 196650
Anchorag6, AK 99519
REFERENCE:
Pl~as~ be advised that the proposed well location on the referenced
p~op~rty site plan has bean chan9ed.
Thee are no points of contamination within the proposed w~ll radius
which can be seen on th~attached site plan. We do not anti.pate any
adverse effects on n~ighborin9 properties by the driling of this w~ll.
If you have any questions, or requir~ additional information pleas6
Sincerely,
RCC/gk
17034 NORTH EAGLE RIVER LOOP ° SUITE 204 · EAGLE RIVER, ALASKA 99577
Z
Q
w
0
L0
11
M,
16;
LEGAL NORTH 1/2, NW1 /4, NE1 /4, SE1 /4, T12N, R3W, SEC.21
DRAWN J. ANDERSON I CKD. J.W. JDATq 1-10-94 SHT- 1 OF 2
REVIS 2-2.-94
STRUCT S, EASEMENTS, OR ENCRUA ENTS
SHO ON THIS SITE PLAN ARE AS SHO ON
A
AS
SURVEY DRAWN BY: .i
ROBERT E. JOHNS JR. Sc ASSOC. \04�
_ \ R0D61T C. CCWIIIT IS THE RESPONSIBILTIY OF THE CONTRACTOR 'y CE -8801
TO VERIFY EASEMENTS, REQUIRED SEPARATION 'rle ..0
NORTH P/L CONSTRUCTION.D PROPERTY LINES PRIOR T�I';'p�QfCJ„Jh
1ooj DESIGN CRITERIA:
3 BDRM = 450 GPD
PROP. SOILS = 0.45 GPD/SQ.FT.
R FACTOR = 0.54
SECONDARY REVISED 3-30-9s 450/0.45 = 1000 SQ.FT. REQ'D
DESIGN CRITERIA: DRAINFIELDS:
BARN = 150 GPD 5' WIDE
EEP
SOILS = 0.45(ESTIMATE- BASED ON OTHER TH'S) PROPOSED WATER
3.SD EFFECTIVE
R FACTOR = 0.58
150/0.45 = 333 SQ.FT. REQ'D PROPOSED
WATER LINE 108' TOTAL LENGTH
SECONDARY A 4' LONG EACH)
MIN.N.0E. 0
DRAINFIELD: PREVIOUS W �o
X395 TD WEST P/L PROP. 262' TO �`'� �.p M
5' WIDE WELL EAST P L Zs��y� M I T� # f PROP. DRAINFIELDS
5' DEEP (NOT TO BE DUG) 10' ♦ I
3' EFFECTIVE / MIN.
39' LONG /
(SEE NOTE) / . /W
PROP. DRAINFIELD SL I°
/ � V
C1 T W/ r TA
/
h TH TO BE EXCAVATED AT TIME y / / PROP. 1000 GAL.
OF CONSTRUCTION TO VERIFY d / / SEp'j'jC TANK
TH ,� SOILS. / . / / / / j
PROP. 1000 GAL. SEPTIC TANK �j j / IV
D c /
O G
cc°o ° ALT. SITE
_ Fc BARN
c�„a
cs�
cn
rrl
COTE: PROP. SEPTIC SYSTEM TO SERVE BARN
W/ 2 SINKS, FLOOR DRAINS, AND HOSE BIB.
APPROX. DISPOSAL IS 100 GPD. CONTRACTOR IS REQUIRED TO
OBTAIN UTILITY LOCATES CLIENT
ALL PORTIONS OF SYSTEM PRIOR TO ANY EXCAVATION
WORK. THE ENCI
WITH LESS THAN 3.5' OF MENNS NS D THE
NDESIGN
SOUTH P/L PARAM TE SIN THE MELD. IF
COVER REQUIRE INSULATION. -- NECESSARY. TO MEET SITE
CONDITIONS.
I
--------------
�
`~•�®
` �•
® �m ® rm
PLOT PfAVS k IL' SP.k�
mum�cR/t ro kAm+wfo� �ewmwwM
U w�e�, v
_w m�txu�iR trim
u as e.i,
u waa -�PrepvM —•�os..�zs,�.m
am0.y mmua
:��s:eM1„
Robert E. JpMns Jr. & Assoc.
Prefe= of LmM Sw
�zwa}��121-�
` �•