HomeMy WebLinkAboutSEQUOIA ESTATES BLK 1 LT 50: S2. -OS
(Rev 05/02/18) /
Municipality of Anchorage
On -Site Water and Wastewater Section - (907) 343-7904 Page 1 of 3
ON-SITE WASTEWATER INSPECTION REPORT
Permit Number: OSP251175
PID Number: 017-152-05
Dwelling: RN Single Family (SF) R with ADU El Duplex (D) R Two Single Family Project: R New RE Upgrade
Name
James & Janette White Revocable Trust
ABSORPTION FIELD
El Deep Trench RN Wide Trench R Bed El Mound
❑
Site Address
6820 Gunnison Dr
[:] Other
Phone
Number
`�� of Bedrooms
Soil Rating
Total depth from original grade
3
0.8 GPD/SFI
3.4 Ft.
LEGAL DESCRIPTION
Depth to pipe invert from original grade
2.9 Ft.
Gravel depth beneath pipe
0.5 Ft.
Subdivision Block Lot
Sequoia Estates 1
5
Fill added above original grade
2.7, 2.1 * Ft.
Gravel length
120 Ft.
Township Range
Section
Gravel width
5.0 Ft.
Beds: Number of Lines
N/A
Distance between lines
N/A Ft.
SEPARATION DISTANCES
To
Septic
Absorption
Lift Station
Holding
Sewer
Total absorption area
Number of trenches
2
Dist. between trenches
>6
From
Tank
Field
Tank
Line
480 Ft2
Ft.
Well
>100'
>100'
N/A
N/A
>25
TANK F!] Septic El S.T.E.P. Fl Holding [:1 Other
Manufacturer
Anchorage Tank
Capacity
1000 Gal.
Surface Water
>1 00'
>100'
N/A
N/A
Material
Plastic
Number of compartments
2
Lot Line
>5'
>10'
N
N/A
NA
Foundation
>1 0'
>10'
N/A
N/A
JPFT—TTFION
IManufacturer
Capacity
Remarks *Listed east to west
Gal.
Deep -burial tank
Alarm location
Electric Iled by
PIPE MATERIAL House to tank D3034 drainfieldTankto D3034
Installer
BTH Construction
Drainfield D3034 CO/MT D3034
Inspector Justin Earls
BENCH MARK (Assumed elevation) 100 ft
Inspection 15, 7/11/25 7/11/25
Location and description
dates: 2 nd
th
Garage Slab
3rd 4
ON-SITE WATER AND WASTEWATER SECTION APPROVAL
Engineer's Stamp
:F
Conditional Approval:
Date
Aw
19W,
Av
1001
49 ..............
• BenjanX*n,-Schiller
% CE 12592 •
Septic System I -X
0(
Approved
Date -
7/31/25�2F
Z.his
Not approval does not include well permit requireme ts.
(Rev 05/02/18) /
CO - CLEANOUT
2CO - DOUBLE CLEANOUT
FCO - FOUNDATION CLEANOUT
FD - FLOW DIVERTER VALVE
MH - MANHOLE
MT - MONITORING TUBE
SV - SEPTIC VENT
TH - TEST HOLE
LEGEND
PERMIT # OSP251175 PID # 017-152-05
1"=50'
SEQUOIA EST, BLOCK 1 LOT 5
FEET
0 50 100Benjamin Schiller
CE 12592
R
E
GISTEREDPROFE S S I O N A L E N G INEER
7/31/25
SEPTIC PLAN
855
GUN
N
I
S
O
N
D
R
I
V
E
10' UTILITY
E
A
S
E
M
E
N
T
10' UTILITY
E
A
S
E
M
E
N
T
10'
U
T
I
L
I
T
Y
E
A
S
E
M
E
N
T
CO5
CO4
CO3
CO2
MT4
MT5
MT2
MT3
10' UTILITY EASEMENT
TH#1
WELL MORE THAN
100' AWAY
WELL MORE THAN
100' AWAY
EXISTING WELLS
WELL MORE THAN
100' AWAY
WELL MORE THAN
100' AWAY100' WELL RADII
(2) 60' LONG X 5' WIDE, 0.5'
EFFECTIVE DEPTH TRENCHES
3-BDRM HOME
1000-GAL
SEPTIC TANK
850845
840
835
860
2CO
CO1SV
MH
A B
CO1 99.2
MH 100.5
SV 102.9
2CO 104.8
CO2 154.2
MT2 159.1
CO3 160.7
59.6
63.4
67.7
71.1
127.4
131.8
138.0
MT3 162.7
CO4 211.6
MT4 207.8
CO5 208.7
MT5 203.0
138.5
169.8
167.8
162.7
157.6
A
B
PROFILE AS-BUILT
(NO SCALE)
86.8
82.7
87.5
93.4
FC
O
MH
SV
PERMIT # OSP251175 PID # 017-152-05
SEQUOIA ESTATES, BLOCK 1 LOT 5
1000 GAL
SEPTIC TANK
2C
O
86.5
Benjamin Schiller
CE 12592
R
E
GISTEREDPROFE S S I O N A L E N GINEER
7/31/25
60'
DRAINFIELD ROCK
MT
CO COMT
60'
DRAINFIELD ROCK
MT
CO COMT
84.0 FINISH GRADE
TH
#
1
GROUNDWATER @ 72.3 5/19/25
71.3
81.3 ORIGINAL GRADE
78.4
77.9
78.4
77.9
83.4 FINISH GRADE 81.3 ORIGINAL GRADE
78.4
77.9
78.4
77.9
TH
#
1
71.3
GROUNDWATER @ 72.3 5/19/25
2" INSULATION
2" INSULATION
EAST TRENCH
WEST TRENCH
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
Permit Number: OSP251175
Work Type: SepticTank Upgrade
Tax Code Number: 01715205000
Site Legal Address: SEQUOIA ESTATES BLK 1 LT 5 G:2939
Site Mailing Address: 6820 GUNNISON DR, Anchorage
Owner: WHITE JAMES B REVOCABLE TRUST
Design Engineer:
This permit is for the construction of:
Effective Date:
Expiration Date:
Lot Size in Sq Ft:
Total Bedrooms:
lit � rl Z
I>eparCrnent
6/17/2025
6/17/2026
49096
Q Disposal Field Q Septic Tank ❑ Holding Tank ❑ Privy ❑ Private 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. Provide notification by calling (907) 343-7904 (24/7).
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
Special Provisions: Locate the edge of the existing bed to ensure horizontal separation is met to new trenches.
Received By: I �`— �` Date:
Issued By: �,1 Date: "�
MUNICIPALITY OF ANCHORAGE
Development Services Department �1 -343-7904 Phone: 907
On-Site Water & Wastewater Section
ON -SITE SEPTIC/WELL PERMIT APPLICATION
Parcel I.D. 017-152-05
Property owner(s) James & Janette White Revocable Trust Day phone,
Mailina address 6820 Gunnison Dr, Anchorage, AK 99516
Site address 6820 Gunnison Dr
Legal description
Sequoia Estates Block 1 Lot 5
Number of Bedrooms 3
Engineering Firm Forge Engineering
Building Permit Number
Not Applicable ❑
APPLICATION IS FOR:
APPLICATION IS AN:
0 all that apply)
Absorption Field
M Initial ❑
Septic Tank
El Upgrade El
Holding Tank
❑ Renewal ❑
Privy
❑
Well
❑
THIS APPLICATION INCLUDES A WAIVER REQUEST FOR:
Distance:
Permit/Rush Fees: W Waiver Fees:
Date of Payment: Date of Payment:
Permit No. 05P 2 5W 75' Waiver No.
May 27, 2025
MOA Development Services, On-Site Water & Wastewater Program
4700 Elmore Rd
Anchorage, AK 99507
Subject: Sequoia Estates Block 1 Lot 5 – Gunnison Dr
Septic system design
Dear On-Site Services Engineer:
The owner of the above lot intends to replace the existing septic system on the property, so we are
submitting this permit application for the construction of a new septic system. The attached site
plan identifies the location of the home as well as the existing and proposed septic location and
alternate site. 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 steeply down from the north east corner of the lot, but is more
moderately sloped towards the road. The proposed septic system is in that area closer to the road.
There are no slopes greater than 25% within 50 feet downslope of either the primary or alternate
site. 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. The alternate site is located
more than 6’ away.
Please refer to the attached test hole logs, 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
OSP251175, Curtis Townsend, 06/17/25
//
// //
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'
SEQUOIA EST, BLOCK 1 LOT 5
FEET
0 50 100Benjamin Schiller
CE 12592REGISTEREDPROFESSION A L E N GINEER
5/26/25
SEPTIC PLAN
855
GUN
N
I
S
O
N
DRI
V
E
10' UTILITY EASEMENT
10' UTILITY EASEMENT
10'
U
T
I
LIT
Y
E
A
S
E
M
E
N
T
FS
COCO
CO CO
MT
MT
MTMT
10' UTILITY EASEMENT
TH#1
WELL MORE THAN
100' AWAY
WELL MORE THAN
100' AWAY
EXISTING WELLS
WELL MORE THAN
100' AWAY
WELL MORE THAN
100' AWAY 100' WELL RADIUS
(2) 60' LONG X 5' WIDE, 0.5'
EFFECTIVE DEPTH TRENCHES
3-BDRM HOME
1000-GAL SEPTIC TANK
EXISTING SEPTIC SYSTEM
TO BE DECOMMISSIONED
MINIMUM 6' SEPARATION
FROM EXISTING BED TO
NEW TRENCHES
850845
840
835
860
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP251175, Curtis Townsend, 06/17/25
SEQUOIA EST, BLOCK 1 LOT 5
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
4" PERFORATED PVC (HOLES DOWN)
DRAINFIELD ROCK
3'
6"
DESIGN FACTORS:SYSTEM REQUIREMENTS:
450 GPD PEAK FLOW
PERK RATE: 5.5 MIN/IN
APPLICATION RATE: 0.8 GPD/SF
5' WIDE TRENCH SYSTEM
1000-GAL SEPTIC TANK
BOTTOM OF TRENCH: 4' BELOW GRADE
FLOW LINE ELEVATION: 3.5' BELOW GRADE
450 GPD / 0.8 GPD/SF / 5' WIDE * 1.0 RED FACTOR [0.5' DEEP] = 112.5 LF TRENCH REQUIRED
(120 LF SPECIFIED)
GEOTEXTILE FABRIC
6"
5/26/25
PROVIDE ADDITIONAL FILL TO
ACCOUNT FOR SETTLEMENT
5'
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP251175, Curtis Townsend, 06/17/25
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
5.5
5/12/25 1
2
3
SM (SILTY SAND W/ SOME
GRAVEL)
Professional Engineers Stamp:
SEQUOIA ESTATES BLOCK 1 LOT 5
5/12/25 017-152-05
JOE WHITE
4
OB
27.5
Benjamin Schiller
CE 12592REGISTEREDPROFESSION A L E N GINEER
PERC TEST LOCATION
TECHNICIAN: JUSTIN EARLS
10
9'
5/19/25
COMMENTS:
SITE PLAN
6
USCS SOIL CLASSIFICATION WAS VISUALLY DETERMINED
5/20/25
MOISTURE NOTED AT TIME OF DIGGING?YES
4
4
30
30
9 7
16 5 7
16
9 7
16 5 7
16
5/19/25
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP251175, Curtis Townsend, 06/17/25
3.2'
WITH BALCONY ABOVE
HOUSE DETAIL
Scale: 1 " = 30'
Lot 4
N
I� N 81.00.0 ! to
2�gg'
Lot 6 �
Lot 7
10' UTILITY EASEMENTS
Lot 3
I Lot 9
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
NOTFS• GRnIINn 1 FVFI IMPRnVFMFNTS SHnWN ARF APPRMIMATF I)ATF nF 4IIRVFY• 99 APRII 9O95
PLOT PLAN _ AS BUILT X SCALE --I! __ 60' GRID — SW 2939 Project No. J25_-1OVA1 --
P.O. Box 210005 'Z,I C(.� Z�S
Lang & Associates, inc. Anchorage, Alaska 99521-0005 0 M
Professional Land Surveyors survey@lan22-6gsurvey.com v OF A
uryoc . • • • • • � 44
o
I hereby certify that I have surveyed the following described property:
LOT 5, BLOCK 1, SEQUOIA ESTATES (Plat No. 82-375)
Anchorage Recording District, Alaska, and that the improvements situated thereon are
within the property lines and do not encroach onto the property adjacent thereto, that
no improvements on the property lying adjacent thereto encroach on the surveyed
premises and that there are no roadways, transmission lines or other visible
easements on said property except as indicated hereon.
Dated this the Z— j Day of —n1fy ZOZI, at Anchorage, Alaska
It is the responsibility of the owner to determine the existence of any easements,
covenants, or restrictions which do not appear on the recorded subdivision plat.
�P 4 TH �I
........e. �... .
0
. JONA C. [ANG
F ' —9944. •' gJp�
4ppR0j`fSS10NAL �vo
�40000��
State of Alaska AECC963
MUNICIPALITY OF ANCHORAGE
DEPARTMENT OF HEALTH AND HUMAN SERVICES o� ��
Environmental Health Division
825 "L" Street, Anchorage, Alaska 99502, Telephone 264-4720
ON-SITE SEWAGE DISPOSAL SYSTEM AND/OR WELL INSPECTION REPORT
Name DISTANCES
TO SEPTIC ABSORPTION WELL
Address FROM TANK FIELD
Phones) Permit No. No. of Bedrooms
WELL hie- I I Wf-XU {JEL(_ AAI- 1`4
22C12 I t
LEGAL DESCRIPTION LOT LINE
Lot BlockSubdivision
i SLE0001A E c FOUNDATION :V_" 1111c)
Township, Range, Section
�i Z l I t- 1 a _ AS -BUILT DIAGRAM (Show location of well, septic system, properly lines, foundation,
IV �/ !.� driveway, water bodies, etc.)
TANKS z.
.Q
K SEPTIC ❑ HOLDING
Manufacturer Capacity in gallons
TYPE OF SYSTEM
❑ TRENCH l BED ❑ W. DRAIN ❑ OTHER
Depth to pipe bottom from Total depth from original grade
original grade 1 n FT C; I FT
Fill added above original grade Gravel depth beneath pipe
.�) .t FT n FT
Gravel length Gravel width
f FT 30, FT
Total absorption area Distance between lines
00 SO FT ` FT
NumbeF of lines Soil rating Pipe material
: � SQ FT 41"Pe t
Installer C� `y (�®_ 1 ? I Dale Installed
WELLS
❑ PRIVATE
❑ OTHER (Identity)
Classification (A,B,C)
Total Depth
Cased to
/
/
FT FT
Installer
Date Installed:
REMARKS:
s.
-
lUv'
ex�_
I/c'Cbfyx/e
T
-fit
LR
MugfEgial and Slate g17es in ellect g this dale:
Health Department Approval:
-Ulu (:S/tab)
2
nspections Performed by:
`ls'/,
Date: C 4_.4.
EOIU—K/r!!f
certify that [his inspection was performed according to all
Date: -1
- 90
—
or
�"~)�~��
�n
M1.)N1L1 1 ,AL11 Y OF ANCHORA6E
�e�arLmentof Healih It At Services
825 L Street, Anchorage, A]aska 99501 343�
ON~SITE SEWER At WELL PERMIT
�.�
������ �� �
F'ermit NumL�er: �O(/()12 ,[~.�.��\c�
Date Issued: 01/16/90 Engineer Designed
!]wner Name: CAROL WHITE Day Phone:
Owner Address: 3706 OREGON UHIVE 258�6500
ANCHORAGE, AK 99517
Parcel Id: 017~152-05
Lot Legal: Subdivision: SEQUOIA ESTATES Lot: 5 Block: 1
Section: 26 Township: 12N Range: 3W
Lot Size 49096 (sq,[t, or acres)
Max Bedrooms: This Permit: 4 lrotal Capacity: 4
SEPTIC TANK: Minii. fir uw total septic tank capacity: 1,250 gallons. Each septic
tank must have at least 2 compartments` Depth to Lop of septic tank/s> < 4"0
feet requires insulation over tank(s).
WELL: Log must be submitted to Municipality o Anchorage Department of HealLh
and Human Services within 30 days of well completion.
PERMIT EXPIRES DECEMBER 31; 1990.
0URING FREEZING WEATHER' EXCAVATION MUST BE OPENED AND CLOSED ON
SAME DAY.
11.1E EXlSTING PIPING AN8 SEP[IC TANK MUST BE DUG UP AND INSPECTED
1 M INTEGRITY K} 8p VERlF1ED" PHOPOLY ABANDON ILLEGALLY
lFAS TALLED BE/), AND SHUW lTS LOCATION ON FINAL INSP" REPORT"
I CERTIFY THAT:
1, I am �amiliar with the requirements �or on~site sewers and weils as se�
forth by the Municipality of Anchorage (MOA) and the State o[ Alaska.
2^ I will install the sysLem in accordance with all MOA codes and regulations,
and in comp1iance with the design criteria o| this permit^
3" I wi]l adhere to all MOA and State of Alaska requirements for the set back
distances From any existing well, wastewater disposal system or public
sewerage system on this or any adjacent or n�arby lo -L.
4. [ understand that this permit is va1id for a maximum of 4 bedrooms" l
also understand that the capacity of Lhe total system is 4 bedronms and
any enlargement will require an additional permit"
Signed: DATE: '
~�.^
(Owner) CAROL WHI�E '
[ssued By: DATE:
---C'-~~~---`--�-----^`'~---~----------
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SEPTIC, 5YSTEM/ o�SHPT
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SEPTIC l 0
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i WELL I
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—
PKOPOs D WELL
i\ p PKOP. VEEIFY ALL.
38DQF7 SEPAf oU
\\/ a 015 TIANC E:5
BED \ — / / COISIST�. r--rIOm
Z4 7 x — � c� /
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PIPE
WEL
WELL _ _ A
RE PVE:
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6cw _`12 APeox, LO-ATIOhL. I _ _
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0
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SEPTIC I IJ
SYSTEM
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WELL —� I I p
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P rPOSED SYSTEM: 2EC IESWLfTAE�BED
IFCOVE 2
FKOM TA1\4K�
Snm)(195SOIL5)(1.5)= %/�ds� �
2
I�
2_4,, 46.5.:_ 1/ lG Ste ,
` /
I
n
3
VEKIFY INTEGfUTY � USE
H -I; eee-3c+ SEPTIC- TA lkl K
CD USTEUCT PES MOA P.PECS___r}
;'
r0 O O o
C EO FA 9 EL_
Sei'r,/Kres'
PE.eF
VERIFY ALL SEPARATION DI TANCE
6" SEWEK
EOGK
PIPE
PRIOR TO CONSTRUCTION IZ
'
SEWER SYSTEM
LOCATION
PLAN
`5
81K
S-QUOIABUESITSION ATES
SECTION/ TOWNSHIP/ RANGE
S26 7I2N R3W
SCALE, NOTE,
APMX, ISI= 1001 The Accuracy Of Location Of Exisitinq And
DRAWN RYA Proposed Property Corners, Wells, and Septic
Systems Indicated Is Not Exact. Dimensions
NORTH JUEY KESS Indicated Have Been Determined By Use Of Cloth
Tape and/or Municipal Records, And Not By
- -•�� �a -�1� Surveying Techniques
r
i f PREPARED FOR,
��9 FACIFIC GEIHERAL COIVT,
;8i,�fSsad Y e"sxJnc
Consiilting:,trngTrieers �•
DATEr SHEET r OF
'iJAeJl 2 b,1IrAl,
n1�`1.��f.Jli%J.'t�1L]'ii4t:[ihCUC*�/3/YY•4!%LJ.iL.53'A'iJ..i.rW'fi'Cid�rtrl'uY�AI...i:Jew±ise� aerr
5-PTIC. 5YSTEM/~ °'�SEPTEM
\/ NE LL I /
SEPTIC_I—
SYSTE H
/o HELL I
o.
I
—
PROPOS D WELL
ENOUSE
VEeIFY ALLKA TO QDISTAN E:5 ED ✓y — ` / CC NSETf-JGT10N
\ � � BED �
1 Z41 dz/o
PIPE
WELL
WELL .R ESEEVE
AREA TEST HOLE FIST. TANK _
6aro6i.� / 2 APeoz LOCATION —
/
TEST HOLEI
'—�\ o
S° °
SEPTIC I I SYSTEM
°
WELL I I °
I
� I I
WCLL
I I
I
RPnPOSED SYSTEM: BED 4(INSULATE BED IF COVE( �
'Pry, -I ESS THAt.L 3' FKOM TANK
I3D2M�(1855oIL5)(L5)= %!/0se
VEKIFY INTEGf�ITY USE
SEPTIC: TAWK Geo FAB21f-
COWSTRUGT PE2 M04 SPECS_ 1 2 0 0 0 0p
�j•Isvl�eS x 4„ PEZF ti-
JerryK�sS 11 6" SEWEQ PIPE
VERIFY ALL SEPARATION DI TANCEO �OGK
PRIOR TO CONSTRUCTION I�,
14
SEWER SYSTEM ' LOCATION PLAN
LOT BLOCK SUBDIVISION
5 1 SEQUOIA ESTATES _
SECTION/TOWNSHIP/RANGE —
S2.6 T12N R3W
SCALE, y NOTE,
APP�OX, I'1= IOOt The Accuracy Of Location Of Exisiting And
DRAWN BY, Proposed Property Corners, Hells, and Septic
�7 �/ [['' Systems Indicated Is Not Rxact. Dimensions
DI
NORTH � E E EY K RESS indicated (lave Been Determined By Use Of Cloth
Tape and/or Municipal Records, And Not By
Surveying Techniques
t PREPARED FOR,
PAGIFIG GENERAL CONT, Acta e's;Jric'
Con&ug1d, il=ngfne'�r I
i .. '...% ... .:..x�__..;�...r..,' ,.:.:...:. �.......; DATEr� SHEET / OF
1),f
Uwner Name: CARDL WHITE Day Phone:
Owner Address: 3706 OREGON DRIVE 258�6500
ANCHORAGE, AK �9517
Parcel Id: 017�152~05
Lot Lega1: Subdivision: SEQUOIA ESTA[ES Lot: 5 Block: 1
Section: 26 Township: 12N Renge: 3W
Lnt Size 49096 (sq.�t. or acres)
Max Bedrooms: lhis Permit: 3 Total Capacity: 3
SEPTIC TANK: Minimum total septic tank capacity: 1,000 gallpns^ Each septic
tank must have at least 2 cufor) artments. Depth to top oseptic tank(s)
ieet requires insulation over tank(s).
WELL: Log must be submitied to Municipality of Anchorage DepartmenL o{ Hea1th
and Human Services within 30 days o[ wel1 completion,
| CERTIFY
THAl:
1, l am
�am�!zar wiLh
the requirements or on-site
sewers
and
we11s as set
{orth
by �he Municipa1ity
o| AnchMOA)
and ihe
State
of A1aska.
2. 1 wii1
znstall the
system in accordance with
al1 MUH
codes
and regulations�
and
in compliance
with the design criteria o<
Lhis permit"
3. I will
adhere to a]1
MOA and SLate o� Alaska
requirements
|or the set back
dzstances
from any
exisiing well, wastewater
disposal
system
or public
sewerage
s�sfem on
thi r any adjacen!or ��earby lot^
4, I under�tand
at
thi rmit is valid for a
maximum
o< 3
bedrooms" l
a]so
unders thatT
I ecapaIe total
system
is
3 bedrooms and
Signed:
^
1ssued By: DATE:
K
TEST HOLE �I
PERFORMED FO
(ENGINEER'S SEAL)
Municipa(ity of Anchorage !: (Rr
DEPARTMENT OF HEALTH & HUMAN SE .O k
1 1
825 "L" Street, Anchorage, Alaska 99502 0 00 .flr z s,
SOILS LOG — PERCOLATION TEVIC/ i
i
LEGAL OESCR(PT(ON:J� 5 Pj I S Fol o I A - Township, Range, Section: -r V �l P U S,
CT" EST/\T ES SLOPE SITE PLAN
(FEET)
1
2-
3-
4-
5-
6-
7 34567
8
9
10
11
12
END
13-
14-
15-
16-
17-
18-
19-
20-4
3141516171s1s20
COMMENTS
ML -CM
511+, s; /q
Wa-11f a-;� -7'
W047r'-p—
ADDcn
WAS GROUND WATER
ENCOUNTERED?
IF YES, AT WHAT
DEPTH?
Depth to Water Alter
YL -(;ee -
S
L
7` O
P
E
aatt LQ1'7
PERCOLATION RATE SSL_,
(
minutes/inch) PERC HOLE DIAMETER
TEST RUN BETWEEN i T AND FT,
PERFORMED BY: v CERTIFY THAT TAT/IIS TEST AS PERFORMED IN
ACCORDANCE WITH ALL STATE AND MUNICIPAL GUIOELIN1 N EFF T N
72-008 (Rev. aril
�t
i
TEST HOLE :"2
PERFORMED FOR:
LEGAL OESCf
6.. OE C
1
2-
3
4
5-
6-
7 67
8
9
10
11
12
f5kD
13-
14-
15-
16-
17-
'18-
191
3141516171a19
20
COMMENTS
Municipality of Anchorage
DEPARTMENT OF HEALTH & HUMAN SE
825 `L" Street, Anchorage, Alaska 99502 -
SOILS LOG — PERCOLATION T
(EN h EER'S SEAL)
Tato
� Sy
re a�.-m��DI1TE PER
Township, Range, Sec(ion: •-F V
e, -,4S ES -1 T ATES SLOPE
lope';
ML- 6M
s:�tf Silff C-��,vz(
Stj, c.-,4
WAS GROUNDWATER
ENCOUNTERED?
S
IF YES, AT WHAT
•-1 I L
OP
DEPTH?
E
Depth to Water After
Moftu"iq? /0-6
Gale:
WATER
ADOCn
P57 -1 -J FC-AVIA165
IQ
y
�
SITE
9/
P/V-orPERCOLATION RATE 13 g�6
(���/�hl PERC HOLE DIAMETER
TEST RUN BEjW/gE/NI � �/y'AND _FT
L — G M en" I 7?, r, —j SJR r-,
PERFORMED BY: �J 1 ��� h J.S l / `�ERTtFY THAT
HIS TE T WAS PERFORMED IN
ACCORDANCE WITH ALL STAT: AND MUNICIPAL GUIDELINE I EFFECT O TNIS
72-008 (Rev. M85i
G O
SEPTI(- 5TEi'1 r
SE
\ PT IG I
Q P,ESECVE A2fA a`�SYSTEM
\ \/ WELL
SE PT IC ,
STE
WELL
J
P[?OPOS D WELL
/ \ D E�l
/ -�-•� J VEDFY ALL
SEPAK' 101
PROP ✓q \ �� / P210DISTA>N ES
BEL)
TION
4"
PIPE
REsEeVE HELL
— — _ _ \ — _ /� /l
AREA
TEST HOLE AP 15- TAN
LcYATION.
TEST HOLE I \\ O
0
SEPTIC j I SYSTEM
I
WELL o
I I
WELL
1 I
I I -
PPOPOSED SYSTEM: BED
(3 Ewm)(185 SoI:.S)(I.5)= 833 sZ 4-+.
2 I' Y 40' = 840 st f+.
VERIFY INTEGRITY � USE
EXIST. 1,000,511 SEPTIC.: TANK
CONIGTNULT pEE MOA 5PEC5
4(IWSULATE BED IFLOVEQ
LESS THAKi 3'
Z - 7
I
VERIFY ALL S1'ARATION DISTANCES
PRIO� TO CONSTRUCTION
FKON TAN r, -
IT
, -
I .
!i " �6EO FAME—
�O� O O O
2 I
4" Pr -FF
6" SEWEQ PIPE
w FOLK fjrroz PIPL_—•
IZ'
SYSTEM
LOCATION PLAN
BLOCK SUBDIVISION
_ - I I SEQUOIA ESTATES
TOWNSHIP/RANGE
S2.6 T12N R3W
SCALE, NOTE,
A, P P1J/il. 1'I= 1001 The Accuracy Of Location Of Exisiting And
DRAWN BY, Proposed Property Corners, Hells, and Septic
J E Ey K CESS Systems Indicated Is Not Exact. Dimensions
Indicated Have Been Determined By Use OC Cloth
and/or municipal Records, And Not Ily
Surveying Techniques
® ; PREPARED FOR,
PACIFIC 6ENEQAL CONT.
N
DATE, 'Q/Z3/B9 I SHEET / OF r
e t p
� "
,��i'
�s
NORTH
.>'ee"
ri.
..
Sm. Corwin
1 .^J
. C€-5283
LOCATION PLAN
BLOCK SUBDIVISION
_ - I I SEQUOIA ESTATES
TOWNSHIP/RANGE
S2.6 T12N R3W
SCALE, NOTE,
A, P P1J/il. 1'I= 1001 The Accuracy Of Location Of Exisiting And
DRAWN BY, Proposed Property Corners, Hells, and Septic
J E Ey K CESS Systems Indicated Is Not Exact. Dimensions
Indicated Have Been Determined By Use OC Cloth
and/or municipal Records, And Not Ily
Surveying Techniques
® ; PREPARED FOR,
PACIFIC 6ENEQAL CONT.
N
DATE, 'Q/Z3/B9 I SHEET / OF r
MUNICIPALITY OF ANCHORAGE
Development Services Department Phone: (907)343-7904
On -Site Water & Wastewater Section Fax: (907)343-7997
Certificate of On -Site Systems Approval
OSC251329
Parcel ID 017 -152-05 Expiration Date: 4/21/2026
Legal description SEQUOIA ESTATES BLK 1 LT 5
Site address 6820 GUNNISON DR
Current property owner(s) WHITE JAMES B REVOCABLE TRUST
X The On-site system(s) is/are approved for 3 bedrooms
Conditional approval for bedrooms, with the following stipulations:
Comments or conditions:
No comments
Original Certificate Date:
8/12/2025
This Cqdiificate of On -Site Systems Approval (COSA) is intended to demonstrate the subject
;Zelopment
m(s) is/are in substantial compliance with municipal code. The Municipality of Anchorage,
Service Department (DSD) issues COSAs based upon representations provided by an
independent professional engineer. The Municipality of Anchorage is not responsible for errors or
omissions in the professional engineer's submittal.
ATTACHMENTS:
COSA Checklist X Well Flow Advisory
Absorption Field Advisory Nitrate Advisory
Tank Age Advisory Arsenic Advisory
Other
MUNICIPALITY OF ANCHORAGE
A
Development Services Department Phone: 907-343-7904
On -Site Water & Wastewater Section Fax: 907-343-7997
Certificate of On -Site Systems Approval Application
1. GENERAL INFORMATION
Parcel I. D. 017-152-05
Complete legal description Sequoia Estates, Block 1 Lot 5
Location (site address)
, 6820 Gunnison Dr, Anchorage, AK 99515
Current property owner(s) James & Janette White Day phone
2. ON-SITE SYSTEMS SIZED FOR 3 BEDROOMS
3. TYPE OF WATER SUPPLY: A Private Well serving #_1_ dwelling units
R Other Non-public well as regulated by MOA R Water Storage
M Community Well or Public
4. TYPE OF WASTEWATER DISPOSAL: FO -1 Private Septic R Private Septic serving 2 dwelling units
E] Holding Tank ❑ Community Septic or Public Sewer
5. SEPTIC TANK: n Steel Fk Plastic E] Concrete R Fiberglass
Age New - See advisory if steel or fiberglass older than 20 years
6. ABSORPTION FIELD: ❑ AWWTS [:] Bed r_1 Deep Trench N Wide Trench R Seepage Pit
Waiver request for:
Expedited review requested: R
Distance:
By applying for this entitlement, this property is subject to inspection by municipal On-site staff
to verify the accuracy of the information provided.
COSA Fee $ 20
Date of Payment V112,5
COSA #_0(25/J2R
1
Waiver Fee $
Date of Payment
Waiver #
COSA Application—Ap2025.doc
Legal Description
COSA Checklist
Sequoia Estates, Block 1 Lot 5 Parcel ID: 017-152-05
If more than 1 well and/or septic system on lot, provide separate checklist. Structure served by this system 1
A. WELL DATA
❑ Well log is filed with Onsite (or attached)
Date drilled C. 1989 Total depth Unknown ft
Cased to Unknown ft
❑■ Sanitary seal is functioning correctly
❑■ Wires are properly protected
Casing height (above ground) 30 in.
Date of flow test for COSA 4/21/25
Static water level at beginning of test 234 ft.
Comments
Well production at time of test 5.8 gpm
Water storage tank volume N/A gallons
Well disinfected for coliform test? ❑ Yes ❑■ No
❑■ Coliform bacteria is Negative
Nitrate 1.21 mg/L E]Nitrate less than MRL (ND)
Arsenic ug/L ❑■ Arsenic less than MRL (ND)
Collected by Forge Engineering
Date 4/21/25
B. TANK DATA C. T STATION
Measured operating fluid level in septic tank New ❑Required m E
Date of pumping Age of lift station
❑ Required maintenance completed, if AWWTS Lift station material
Comments: Comments:
D. DISPOSAL FIELD DATA
ance completed
Which system tested (date installed) New
equacy test date
❑■ ALL standpipes present per record drawing
sults ❑ Pass
Total measured depth from grade 6.1, 5.5 ft (max)
Fluid d th prior to test in
Measured depth to pipe invert from grade 5.6, 5.0 ft (min)
Water add gal
❑ N/A — pressurized field.
New fluid dept in
❑■ Per record drawings, field is insulated.
Elapsed time min
❑■ Monitor tubes go to bottom of effective.
Final fluid depth in
If not, state depth into effective
Absorption rate g
oaked required if
FIELD STATUS — POST RE V
(Requir i house vacant or field not used for more
'
Effective depth (per record dra
than 30 days p to date of test)
Gallons introduced gallons date
Effective depth used in
Any rejuvenation treatment (past 1 nths)
Effective depth remaining
If yes, enter date
Comments/Deficiencies:
COSA Checklist_May2025.docx
ERY
fgs)
in
in
E. SEPARATION DISTANCES
From Well on Lot to: (Please enter distances if less than required)
Septic Tank/Lift Station on Lot > 100'
❑E Yes if No ft
Neighboring Tank > 100' ❑� Yes if No ft
Disposal Field on Lot > 100' ❑■ Yes if No ft
Neighboring Disposal Fields > 100'
R Yes if No ft
Sewer Line/Main > 100' R Yes if No ft
Sewer Manhole/Cleanout > 100'
❑� Yes if No
Sewer Service/Septic Line > 25'[E Yes if No
Holding Tank > 100' Yes if No
Animal Containment > 50' Yes if No
Manure/Animal Excreta Storage > 100'
❑■ Yes if No
❑ N/A — Served by Community Well (not on lot) or Public Water
From Septic/Holding Tank and Disposal Field(s) on Lot to: (Please enter distances if less than required)
Tank to Foundation > 10' 0 Yes if No ft Surface Water > 100' 9 Yes if No
Field to Foundation > 10'
❑■
Yes
if No
Tank to Property Line > 5'
R
Yes
if No
Field to Property Line > 10'
❑�
Yes
if No
Water Main/Service Line > 10'
❑E
Yes
if No
F. ENGINEER'S COMMENTS
ft Wells on Adjacent Lots:
ft Wells > 100' ❑� Yes if No _
ft Community Wells > 200' ❑� Yes if No _
ft If tank or field is under driveway comment below
ft
ft
ft
ft
ft
ft
ft
ft
G. CERTIFICATION & STATEMENT OF INSPECTION BY ENGINEER
As certified by my seal affixed hereto and as of the validation date shown below, I verify that my investigation, based
on procedures outlined in the Certificate of On -Site Systems Approval Guidelines, indicates that the on-site water
supply and/or wastewater disposal system appears to comply with applicable Municipal and State codes,
ordinances, and regulations in effect at the time of installation, unless noted otherwise.
Name ofFirm Forge Engineering
Engineer's Printed Name Benjamin Schiller, P.E.
COSA Checklist_May2025.docx
Phone (907) 522-7773
Date 7/31/25
.' SOF A�q�ll
�* •'qg TH
.. ..
.. ... ........
J� '. • Benja. ' . chiller
����F�;l ,
CE 12592 • .������
1 tl`F�pROFESSI4N�t.� �
3.2'
WITH BALCONY ABOVE
HOUSE DETAIL
Scale: i" = 30'
OsZ16 /
O� ry0
�`1• SEI
G_\� S+� •00 p ,\ MANHOLE
Lot 5'
49,096 s.f.
CONCRETE
ASEPTIC PIPES—k� 'cJ
�O• SCREENING
PANELS
ARBOR iv
10
'OOV
266'
Lot 6
I Lot 7 1
Lot 4
75'
WELL/
ti
Lot 8
0' UTILITY EASEMENTS
Lot 3
7r
Lot 9
I
i
I
NOTES: GROUND LEVEL IMPROVEMENTS SHOWN ARE APPROXIMATE. DATE OF SURVEY: 18 JULY 2025
PLOT PLAN AS BUILT X SCALE 1" =/r60' GRID SW 2939 Project No J25 -102/A3
Lang & Associates, inc P'O. org21Alas ZCjO Y z�
• Anchora e, Alaska 99521-0005 00 O�
(907) 522-6476 o OFA °opp
Professional Land Surveyors survey0langsurvey.com ��F, .. . q p
I hereby certify that I have surveyed the following described properly: �0��:• T•
LOT 5, BLOCK 1, SEQUOIA ESTATES (Plat No. 82-375) 0 * a
Anchorage Recording District, Alaska, and that the improvements situated thereon are"""' ""' "" """"
within the property lines and do not encroach onto the property adjacent thereto, that
no improvements on the property lying adjacent thereto encroach on the surveyed. •...
premises and that there are no roadways, Transmission lines or other visible QOAr^ NG
easements on said property except as indicated hereon.
Z T� -9944. • Som
Dated this the Day of at Anchorage, Alaska p �l''' • • N000
�OQ O�SSIONAO �a
It is the responsibility of the owner to determine the existence of any easements, �Opppooa
covenants, or restrictions which do not appear on the recorded subdivision plat. State of Alaska AECC963