HomeMy WebLinkAboutDEARMOUN #2 BLK 1 LT 7DeAr'moun
Block !
Lot 7
#018 -401 - 23
Municipality of Anchorage
On-Site Water and Wastewater Section • (907) 343-7904 Page 1 of 3
ON-SITE WASTEWATER INSPECTION REPORT
Permit Number: OSP191521 PID Number: 018-401-23
Dwelling:❑ Single Family (SF) ❑ with ADU ❑ Duplex (D) ❑ Two Single Family Project: 0 New ❑ Upgrade
Name
Colony Builders
ABSORPTION FIELD
❑ Deep Trench X Wide Trench El Bed EJ Mound
Site Address
3711 Matthews Drive Anchorage, AK
❑ Other
Phone
Number of Bedrooms
Soil Rating
Total depth from original grade
345-0371
3
1.0 GPD/SF
5.0/5.0 Ft.
LEGAL DESCRIPTION
Depth to pipe invert from original grade
4.5/4.5 Ft.
Gravel depth beneath pipe
0.5/0.5 Ft.
Subdivision Block Lot
DeArmoun #2 1 7
Fill added above original grade
0.9/1.2 Ft.
Gravel length
2 @ 45 Ft.
Township Range Section
Gravel width
5.0 / 5.012 Ft.
Beds: Number of Lines
Distance between lines
Ft.
SEPARATION DISTANCES
To
Septic
Absorption
ft Station
Lift
Sewer
Total absorption area
Number of trenches
Dist. between trenches
From
Tank
Tk
Field
an
Tank
Li
Line
450 Ftz
2
>6 Ft.
Well
>100'
>100'
N/A
N/A
>25
TANK 0 Septic ❑ S.T.E.P. ❑ Holding ❑ Other
Manufacturer
Ferguson/Infiltrator
Capacity
1,060 Gal.
Surface Water
>100'
>1 00'
N/A
N/A
Material
Number of compartments
Lot Line
>5'
>10'
N/A
N/A
NA
Plastic
2
Foundation
>1 0'
>10'
N/A
N/A
LIFT STATION
Manufacturer
Capacity
Remarks Tank is insulated. An effort was made to locate the
Gal.
existing septic system with an excavator and it cannot be founts.
Alarm location
Electrical installed by
PIPE MATERIAL House to tank D3034 drainfield Tank to
D3034
Installer
Red Dog Masonry
Drainfield D3034 CO/MTD3034
Inspector J. Mlllette
BENCH MARK (Assumed elevation) 100 ft
Inspection1�t 1/24/20 1/31/20
Location and description
2nd
es:
3d 2/12/20 4,h
Top of foundation.
ON-SITE WATER AND WASTEWATER SECTION APPROVAL
Engineer's Stamp
e®®�E OF.
Conditional Approval: Date
o®�P,.•••" ••:�!e
®:
•= ®®
e •• 49th
�.....i.}}''
.......¢....d........ }�' ..i.....o
0................................................ o
MICHAEL E. ANDERSON p
Septic System
Approved--'--w. _ �J_7 —�
Date
= 4��
+'s' No. CE-4381 .;• ���
o®A�F�;'••.,
/
Note:
•7/24/20 .•••'����w
•°°0 pROFESS��P®moo®
this approval does not include well permit requirements.
trcev uoiuzrius
D AR • #2, BLOCK•
PERMIT # OSP191521 PID # 018-401-23
II�11t1RNAGAIN B1 L13 I TURNAGAIN B1 L14 I TU =Bl
L15 ITURNAGAIN BI -4,16I TURNAGAIN B1 L17
I LOTS ARE SrRVED BU WATO SYSTEM \ I I
/ I I ALTERNATE SITE: CATEGO Y III
StPTIC SYSTEM w/20' LOO x 5' WIDE x
.51 EFFECTIVE DEPTH ABSPFPTION
T ENCH. APP. RATE 5 G D.
---- I--------�----
10' UTILITY EASEM ( T
04 2
MT4 ;
MT ; 2-45' LONG x 5' WIDE x .5' EFFE�C IVE /
DEPTH ABSORPTION TRENCH yr 'MOA
\ �TH' ' APPROVED SAND LINER.
FS
MT � i 7.171 ( I
\ LOT 6 / ° ' 2Co C07 LOT 8 I I LOT 9
\ _j TH21D S MH
\ \ I 1,060 GALLON SEPTIC ll
\ FCO TANK w/20" MANWAY. (\
\ ( THREE BEDROOM I /
\ C\ \ \ \ LOTS 7 HOME
1 WATER SERVICE. I \
\�------- / L----
SAT EWSS DRIVE - - i -
� B
EXCAVATION EO:ORTS WERE MADE OVER MUF,
THE LOT. THI` EXISTING SEPTIC SYSTEM COULD NOT
BEL0C4Pl---------I—I--
/LOT 4 i
I \ \ I
PLAN AS -BUILT
0 50 100
FEET
1 "=50'
FCO
2.4
1.8
-MH
40.0
15.7
SV
34.11
15.8_.
2CO
36.8
19.9
C01
46.2
25.4
MT1
49.1
29.0
CO2
80.9
69.7
MT2
75,6-
64.
FS
47.6
35.6
CO3T
34.6
27.9
MT
36.3
30.5
CO
74.8
70.1
M 4
1 71.6
66.2
LEGEND
CO - CLEANOUT
2CO - DOUBLE CLEANOUT
FCO - FOUNDATION CLEANOUT
FS - FLOW SPLITTER VALVE
MH - MANHOLE
MT - MONITORING TUBE
SV - SEPTIC VENT
TH - TEST HOLE
DEARMOUN #2, BLOCK 1 1 LOT 7
PERMIT # OSP191521
94.1
93.6 -
93.5
93.0 -
99.5 FINISH GRADE
2" INSULATION
E- 0
98.6 ORIGINAL GRADE :E 0
-- 91.6 91.6
45.0' -----
NO GROUNDWATER 12/2/19
82.6
0
99.2 FINISH GRADE 98.0 ORIGINAL GRADE Q
Ell
MOA APPROVED FILTER SAND
are
NO GROUNDWATER 12/2/19
82.0
91.0
45.0' - I
PROFILE AS -BUILT
(NO SCALE)
94.1
- 93.6
93.5
. 93.0
49th
I'll ...1A.....
. .... . . .........................
MICHAEL E. ANDERSON
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No. CE -4381 Ar
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,'""A`'rr MUNICIPALITY OF ANCHORAGE
`°� � �"'a r$r
/� � On-Site Water&Wastewater Program moo, , �-- S<�
/ ., p •.a, PO Box 196650 4700 Elmore Road ._
i "'0 f Anchorage,Alaska 99519-6650 Phone:(907)343-7904 Fax (907)343-7997 �' ri
\ `.�;. k. 14: ) http://www.muni.org/onsite Q.;: .,.I6v
i d 4.4 ....,
`epa t t;rnent
4HcHoa0°4-
On-Site Wastewater Disposal System Permit
Permit Number: OSP191521 Effective Date: 12/9/2019
Work Type: Septic Initial Expiration Date: 12/8/2020
Tax Code Number: 01840123000
Site Legal Address: DEARMOUN#2 BLK 1 LT 7 G:2935
Site Mailing Address: 3711 Matthews DR, Anchorage
Owner: BOTTJEN GREGORY A Lot Size in Sq Ft: 13721
Design Engineer: FORGE ENGINEERING Total Bedrooms: 3
This permit is for the construction of:
Q Disposal Field Q Septic Tank 0 Holding Tank 0 Privy 0 Private Well 0 Water Storage
All construction shall be in accordance with:
1. The attached approved design.
2. AU 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
s
Received By: )0/9-442/Cii• Date: loll CI/L
Issued By: ,p, a. Date: /Z—Ai g
tPLPAJS
MUNICIPALITY OF ANCHORAGE
Community Development Department Phone: 907-343-7904
Development Services Division Fax: 907-343-7997
On-Site Water& Wastewater Program
ON-SITE SEWER/WELL PERMIT APPLICATION
Parcel I.D. 018-401-23
Property owner(s) Colony Builders Day phone 345-0371
Mailing address 9420 Vanguard Drive Anchorage, AK 99507
Site address NHN Matthews Drive Anchorage, AK
Legal description (Sub'd., Block & Lot) DeArmoun #2, Block 1, Lot 7
Legal description (Township, Range & Section)
Lot Size 13,721 Sq. Ft. Number of Bedrooms Three (3)
APPLICATION IS FOR: APPLICATION IS AN: TYPE OF DWELLING:
(®all that apply)
Absorption Field ❑X Initial ❑X Single Family (SF) X
(w/wo ADU)
Septic Tank [ Upgrade ❑ Duplex (D)
Holding Tank Renewal ❑ Multiple Dwellings ❑
Privy ❑ (SF and/or D)
Private Well
Water Storage fj
THIS APPLICATION INCLUDES A VARIANCE /WAIVER REQUEST FOR:
Distance:
I certify that the above information is correct. I further certify that this is in accordance with
applicable Municipal Codes.
(2,4,
(Signature of property owner or authorized agent)
4,ash
Permit/Rush Fees: 56154". 357 q5"-?-Waiver Fees:
Date of Payment: I o21 I I q Date of Payment:
Receipt Number: Ot-f igt Receipt Number:
Permit No. OSPn161 i' 2-I Waiver No.
Permit App__.: : .,c
fvkinicipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COftiIUAN(
GE
OSP191521,Deb ckenfuss. 12/O
•
ENGINEERING W
PO BOX 240773
ANCHORAGE.AK 99524
522-7773 677-7766(FAX)
December 5, 2019
MOA Development Services Department
On-Site Water&Wastewater Program
4700 Elmore Rd
Anchorage, AK 99507
Subject: DeArmoun, Block 1, Lot 7—NHN Matthews Drive
Septic System Design
Dear On-Site Services Engineer:
The owner of the above lot intends to build a 2-bedroom home on the property,but has requested
the septic system be designed for 3-bedrooms. We are submitting this permit application for the
construction of a new septic system. The lot is currently served by a public water system. The
attached site plan identifies the location of the home and the proposed septic location and alternate
site.No conflicts exist between this proposed system and any other well or septic system on this
lot or adjacent lots.
The ground surface on the lot slopes slightly to the east at grades much less than 25%. Ground
contours are shown on the site plan showing the grade and dir ectionof flow. Stormwaterdrainage
will not impact this septic system.The new tr enchwill be constructed parallel to the slope as much
as possible.
An existing septic system is known to be on the lot. It will be located and decommissioned in
accordance with Municipal Code.
Please refer to the attached test hole logs and plan and profile sheets for the septic design. If this
design is followed, there will be no adverse impacts to adjacent properties.
Sincerely, +++•
-041/4-12t-S- 111P.C9/
Michael E. Anderson, P.E. ;? 49th :
0 ......N..•
j n It MICHAEL E. ANDERSON • j
t
•' v No. CE-4381 t =
'F.�F%.,�� 12/5/19 ,.• '•
,4�ri.�: �4'•
' Muniapality of Mchorxgc
' On-site Water and Wastewater
D eA R M O U N #2, BLOCK 1 LOT 7 REVIEWED FOR CODE CONPLIANI
oSP191521,Deb Vlbckenfuss, 1210
\ •
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B1 L13 TURNAGAIN B1 L14 TU GAIN B1 L15 I TURNAGAIN B1\1,16 TURNAGAIN 81 L17 I \•
LOTS ARE SI✓RVED B AWWU WATER SYSTEM \
I
/ ALTERNATE SITE:CATEG TORY III I
/ SEPTIC SYSTEM w/20'LONG x 5 WIDE x
/
/
.5 EIFFECTIVE DEPTH ABSORIPTION I I
/ L TRENCH. APP.RATE 5 GFD/SF. IT — — _1 L
/
APPROXIMATE LOCATION OF — 10' UTICA- •SE WENT _
EXISTING ABSORPTION PIT. cow --Tc': •0 \ I /
2-45'LONG x 5'WIDE x.5'EFFECTIVE
\ • — DEPTH ABSORPTION TRENCH )2'MOA/
\ T• /--
APPROVED SAND LINER. TRE CH
\ E — — — — : SEPARATION IS 10'TO ACCOM DATE/
�q5, •
(••.— SLOUGHING SOILS.
T\ \ -- •
` • MTo yM I
.` FS �•
\ LOT 6 / : ) / •. c zco co LOT 8 I I \ LOT 9
\\ J i TH20( •, MH �_ 1.000 GALLON SEPTIC 11
FCO TANK w/20"MANWAY.
\ \�\ f ., _m_______- --— BEDROOM I ) II
HOME 1
C\ WATER�RVICE.VERIFY LOCATION LOT 7/ 1 1
\ N N
N
PROrfp CONSTRUCTION. I \
N /1
j \ \�/ \ ` ,� _— . L
1 > � / / i
L _ �O_T5�,' ATTF WS DRIVE - /
\\I NOTE: ,.. —�—
\ AN EXISTING S DTIC SYSTEM IS KNOWN TO Br
\� I )
LOCATED ON'rHE LOT. THE SYSTEM MUST B ' — --/
V — — '—\ LOCATE- DECOMMISSIONED CD-DECOMMISSIONED PER MOA DB.
\ 1 /---- I
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/LOT 4 ( — --�
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1
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1110?GE
I N M I N G I L 1
•••••a aa4+y LEGEND
•• P:..'' "+.. .j CO-CLEANOUT
a :• ��— �1,. �j 2C0-DOUBLE CLEANOUT
0
FCO-FOUNDATION CLEANOUT
,,»„�,,,,,,,,,,,,o, ��„,,,,......1,'„g FS-FLOW SPLITTER VALVE
-V:
DEARMOUN #2Co-site Water and Wastewater
,BLOCK 1 , LOT 7
, „ COWL!.
QSP191521,Deb L4bdcertfuss, 1 ,
DESIGN FACTORS: SYSTEM REQUIREMENTS:
450GPD PEAK FLOW 5'W IDE SHALLOW TRENCH SYSTEM
PERK RATE: <1 MIN/IN 1.000-GALLON SEPTIC TANK
APPLICATION RATE: 1.0 GPD/SF 2' M.O.A. SAND LINER
450 GPD/ 1.0 GPD/SF/5'WIDE= 90 LF TRENCH REQUIRED (90 LF SPECIFIED)
BOTTOM OF TRENCH:5' BELOW GRADE
FLOW LINE ELEVATION: 4.5' BELOW GRADE
TOP OF TRENCH:.5'ABOVE GRADE
r 6"
11=11-11P11—u—..
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•�$r:''' a.9V �:�.;..:,-q7> .aaJ.RriY( .'�.N'•'.`.Ja:'-
4" PERFORATED PVC(HOLES DOWN)
DRAINFIELD ROCK
MO.A.APPROVED SAND
5'
1 '
•
illifiiiiPGE
ENGINEERING
TYPICAL TRENCH SECTION
•(NO SCALE) +4`P�...'" ..;�Cq .,,
NOTES: -'14f ��499th %` N. ',
1. GRADE AREA OVER TRENCH TO DRAIN AWAY :7�5�*.c2.- -ECE .^--1
2. PROVIDE 3' OF COVER OVER TRENCHES AND 4' OVER SEPTIC TANK, OR 2' j�, MICHAEL E. ANDERSON 17.4..,if
WITH 2" OF INSULATION �s`% No. CE-4381 ' sr
3. CHECK GROUNDWATER AT TIME OF CONSTRUCTION. IF LEVEL IS HIGHER �v.,4-.....124/1.. cf"•'
THAN PREVIOUSLY OBSERVED, CALL ENGINEER IMMEDIATELY ��46, ,5-��:••�`
MuniLipdtity of Ar LI uraye
On-site Water and Wastewater
voiiistri
. 17,11ECra voip;. ; - AN(
400.61521 ,, , ,-•, „ N, 12/0i
SOILS LOG AND PERCOLATION TESTllfeGE .i. ..
INGINIERING
oor,:i1CHAEL E. ANDEZON/tS:
4ii
V.p.% No. a-4381 ?........
LEGAL DESCRIPTION: DEARMOUN, BLOCK I, LOT 7 ca,"3., 12/6n9 ....."ctf
PERFORMED FOR: COLONY BUILDERS ..*ISOF• ES;..02>.
-.011wasim-
DATE: 11/22/19 PROJECT No.:
PARCEL ID#: TECHNICIAN: J. WILLIAMS Professional Engineers Stamp:
DEPTH TEST HOLE 1
(feet)
1 s i 1OB SLOPE SITE PLAN
%.-.-"..t::.i.,*f':':•.
2 _::!',::,.;..;:,,..::::::: POORLY GRADED GRAVEL
,.i,l' GP
..- -,
. .. ..;::
4 ..!:7. :!:.7•.::..:.;:
..,?.1::14.,.1:71
' ......•1.i.".'.;7::
5
: --•
6
:•,.::',::1-,..;:::.."..
SANDY SILTY GRAVE L
8 GP
... '1.:'..';2 •
9 :.:', ...-:....f-.;..,.;.;
i 0, 1?::. Y;li.:: WAS GROUND WATER ENCOUNTERED? N.
1F YES(T WHAT DEPTH? - S
i•1 1-;1:::. ,,: DEPTH TO WATER AFTER MONITORING: NONE L
1 1 .• •••f;',....••:
1,:4‘...: DATE OF MONITORING: 12/2/i 9 p
E
12 :;;
':.'......,. ..1'. TO
'...-....:::.:::;::: DATE READING GROSS TIME NET TIME, DEPTH WATER NET DROP
13 4j,-:! : :.i : - (MINUTES) (MINUTES) (iNcHES) (iNcHES)
14 ..'7. ::r:::....... --- TEST HOLE PRESOAKED PRIOR TO TESTING:
. '"•:..::f..: -
;:•.,..:.:,..,7.:-.....;,
15 ".:,ff,:.: ;..:...,1! 1 3:50/3:55 5.12 0/54 54
16
2 3:56/4:01 5.12 0/* 5412
17 3 4:02/4:07 5.12 0/54 5
4 4:08/4:13 5.12 0/54 16
ST
18 5 4:14/4:19 5.12 0/ 6 51*
19 6 4:20/4:25 5.12 0/51
20
PERCOLATION RATE: <1 (MIN/INCH) PERC. HOLE DIA. 6 (INCHES)
TEST RUN BETWEEN: 4 FT. and 5 FT.
COMMENTS: MOA APPROVED SAND LINER REQUIRED.
Um Iidpdtity of AI-Outage
Cn-site Water and Wastewater
amu„+a„a
i"J •, _1521, a-. I ,,.. , . , 12/
SOILS LOG AND PERCOLATION TEST =' � 49th •
to•
lliGE
NGINt[CINC •. rwrrpwnwrrwwwp.,,
••V% MICHAEL E. ANDERSONi Log
•0 s
LEGAL DESCRIPTION: DEARM0UN, BLOCK I, LOT 7 ••♦,4).:�. 0.72CE�4381'f ,.'_�`1
PERFORMED FOR: COLONY BUILDERS ♦�.��. ;;;�!:•*�
DATE: H/22/I9 PROJECT No.:
PARCEL ID#: TECHNICIAN: J. WILLIAMS Professional Engineers Stamp:
DEPTH TEST HOLE 2
(feet)
1 1' OB SLOPE SITE PLAN
2 •.;,•:,t, POORLY GRADED GRAVEL
3 +'!1. 4 ;,� GP
:
4 ,5 :
-' ;.ti;
• ^7:^ SANDY SILTY GRAVEL
8 .:}• :.- Y:. GP
.r:',!:. '.;.*:..'::
.
10 't -' 1':J: WASGROUND WATER ENCOUNTERED? N C
`,,:.� IF YES @;WHAT DEPTH?
.•.:l ;? L
11 ' ' DEPTH TO WATER AFTER MONITORING: N v N E
•...,,.;.,,j DATE OF MONITORING: 12/2/19
12 r',"i';;;.;:::1';
' '`'' i ' DATE READING GROSS TIME NET TIME WATPTER TO
NET DROP
13 ::`.� : :;.;' (MINUTES) (MINUTES) (INCHES) (INCHES)
14 ':::::• . "` --- TEST HOLE PRESOAKED PRIOR TO TESTING:
• .: . ',. 1 3:35/3:43 8.17 1
15 :t �:ti<; 0/5 s 5f
•
• ':: 2 3:44/3:52 8.25 0/51 51
17 3 3:53/4:01 8.25 0/576 516
4 4:02/4:10 8.25 0/51 5 6
18 5 4:11/4:19 8.25 0/54 51-g
19 6 4:20/4:28 8.25 0/51 5�
16 16
20 .
PERCOLATION RATE:1.38 (MIN/INCH) PERC.HOLE DIA. 6 (INCHES)
TEST RUN BETWEEN: 4 FT. and 5 FT.
COMMENTS: MOA APPROVED SAND LINER REQUIRED.
PO BOX 240773
ANCHORAGE, AK 99524
522-7773 677-7766 (FAX)
December 5, 2019
MOA Development Services Department
On-Site Water & Wastewater Program
4700 Elmore Rd
Anchorage, AK 99507
Subject: DeArmoun, Block 1, Lot 7 – NHN Matthews Drive
Septic System Design
Dear On-Site Services Engineer:
The owner of the above lot intends to build a 2-bedroom home on the property, but has requested
the septic system be designed for 3-bedrooms. We are submitting this permit application for the
construction of a new septic system. The lot is currently served by a public water system. The
attached site plan identifies the location of the home and the proposed septic location and alternate
site. No conflicts exist between this proposed system and any other well or septic system on this
lot or adjacent lots.
The ground surface on the lot slopes slightly to the east at grades much less than 25%. Ground
contours are shown on the site plan showing the grade and direction of flow. Storm water drainage
will not impact this septic system. The new trench will be constructed parallel to the slope as much
as possible.
An existing septic system is known to be on the lot. It will be located and decommissioned in
accordance with Municipal Code.
Please refer to the attached test hole logs and plan and profile sheets for the septic design. If this
design is followed, there will be no adverse impacts to adjacent properties.
Sincerely,
Michael E. Anderson, P.E.
12/5/19
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP191521, Deb Wockenfuss, 12/09/19
295295
10050 0
FEET
1"=50'
NOTE:
AN EXISTING SEPTIC SYSTEM IS KNOWN TO BE
LOCATED ON THE LOT. THE SYSTEM MUST BE
LOCATED AND DECOMMISSIONED PER MOA CODE.
CO - CLEANOUT
2CO - DOUBLE CLEANOUT
FCO - FOUNDATION CLEANOUT
FS - FLOW SPLITTER VALVE
MH - MANHOLE
MT - MONITORING TUBE
SV - SEPTIC VENT
TH - TEST HOLE
LEGEND
DeARMOUN #2, BLOCK 1 LOT 7
MATTHEWS DRIVE
12/6/19
10' UTILITY EASEMENT
2-45' LONG x 5' WIDE x .5' EFFECTIVE
DEPTH ABSORPTION TRENCH w/2' MOA
APPROVED SAND LINER. TRENCH
SEPARATION IS 10' TO ACCOMODATE
SLOUGHING SOILS.
1.000 GALLON SEPTIC
TANK w/20" MANWAY.
ALTERNATE SITE: CATEGORY III
SEPTIC SYSTEM w/20' LONG x 5' WIDE x
.5' EFFECTIVE DEPTH ABSORPTION
TRENCH. APP. RATE 5 GPD/SF.
FCO
MH
SV 2CO CO CO
CO CO
FS
MTMT
TH1
TH2
THREE BEDROOM
HOME
WATER SERVICE. VERIFY LOCATION
PRIOR TO CONSTRUCTION.
LOTS ARE SERVED BY AWWU WATER SYSTEM
APPROXIMATE LOCATION OF
EXISTING ABSORPTION PIT.
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP191521, Deb Wockenfuss, 12/09/19
DEARMOUN #2, BLOCK 1, LOT 7
DESIGN FACTORS: SYSTEM REQUIREMENTS:
450GPD PEAK FLOW
PERK RATE: <1 MIN/IN
APPLICATION RATE: 1.0 GPD/SF
5' WIDE SHALLOW TRENCH SYSTEM
1.000-GALLON SEPTIC TANK
2' M.O.A. SAND LINER
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
BOTTOM OF TRENCH: 5' BELOW GRADE
FLOW LINE ELEVATION: 4.5' BELOW GRADE
TOP OF TRENCH:.5' ABOVE GRADE
450 GPD / 1.0 GPD/SF /5' WIDE = 90 LF TRENCH REQUIRED (90 LF SPECIFIED)
12/4/19
4" PERFORATED PVC (HOLES DOWN)
5'
6"
4'
2'
6"
6"
DRAINFIELD ROCK
MO.A.APPROVED SAND
GEOTEXTILE FABRIC
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP191521, Deb Wockenfuss, 12/09/19
LEGAL DESCRIPTION:
PERFORMED FOR:
DATE:
PARCEL ID#:
SOILS LOG AND PERCOLATION TEST
TECHNICIAN:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
DEPTH
(feet)
PROJECT No.:
TEST HOLE 1
SLOPE
SLOPE
SITE PLAN
DATE READING GROSS TIME
(minutes)
NET TIME
(minutes)
DEPTH to
WATER NET DROP
TEST HOLE PRESOAKED PRIOR TO TESTING:
PERC. HOLE DIA. (INCHES)PERCOLATION RATE: (MIN/INCH)
TEST RUN BETWEEN: FT. and FT.
COMMENTS:
(inches)(inches)
DEARMOUN, BLOCK 1, LOT 7
11/22/19
J. WILLIAMS
DATE OF MONITORING:
WAS GROUND WATER ENCOUNTERED?
DEPTH TO WATER AFTER MONITORING:
IF YES @ WHAT DEPTH? -
<1 6
4 5
COLONY BUILDERS
3:50/3:55
---
1
2
3
4
5
6
0/516
16
3:56/4:01
4:02/4:07
4:08/4:13
4:14/4:19
4:20/4:25
1' OB
Professional Engineers Stamp:
12/6/19
5.12
NO
NONE
12/2/19
SANDY SILTY GRAVEL
GP
516
16
5.12
5.12
5.12
5.12
5.12
MOA APPROVED SAND LINER REQUIRED.
POORLY GRADED GRAVEL
GP
0/516
16
0/516
16
0/516
16
0/516
16
0/516
16
516
16
516
16
516
16
516
16
516
16
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP191521, Deb Wockenfuss, 12/09/19
LEGAL DESCRIPTION:
PERFORMED FOR:
DATE:
PARCEL ID#:
SOILS LOG AND PERCOLATION TEST
TECHNICIAN:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
DEPTH
(feet)
PROJECT No.:
TEST HOLE 2
SLOPE
SLOPE
SITE PLAN
DATE READING GROSS TIME
(minutes)
NET TIME
(minutes)
DEPTH to
WATER NET DROP
TEST HOLE PRESOAKED PRIOR TO TESTING:
PERC. HOLE DIA. (INCHES)PERCOLATION RATE: (MIN/INCH)
TEST RUN BETWEEN: FT. and FT.
COMMENTS:
(inches)(inches)
DEARMOUN, BLOCK 1, LOT 7
11/22/19
J. WILLIAMS
DATE OF MONITORING:
WAS GROUND WATER ENCOUNTERED?
DEPTH TO WATER AFTER MONITORING:
IF YES @ WHAT DEPTH? -
1.38 6
4 5
COLONY BUILDERS
3:35/3:43
---
1
2
3
4
5
6
3:44/3:52
3:53/4:01
4:02/4:10
4:11/4:19
4:20/4:28
1' OB
Professional Engineers Stamp:
12/9/19
8.17
NO
NONE
12/2/19
SANDY SILTY GRAVEL
GP
8.25
8.25
8.25
8.25
8.25
MOA APPROVED SAND LINER REQUIRED.
POORLY GRADED GRAVEL
GP
0/516
16 516
16
0/516
16 516
16
0/516
16 516
16
0/516
16 516
16
0/516
16 516
16
0/516
16 516
16
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP191521, Deb Wockenfuss, 12/09/19
N.° 942
NAME ,,'~-~'~ ~-~'~ J
LOCATION
SEPTIC TANK:
MAILING . , -.~
DISTANCE FROM WELLL'~),,"~--,~ l~//~''
LIQUID CAPACITY,-/~9 ~J~,4,; GALLONS.
~ ~ NUMBER OF
MATERIAL ---'~£ ~
COMPARTMENTS
LIQUID
INSIDE LENGTH INSIDE WIDTH DEPTH
SEEPAGE SYSTEM: SEEPAGE PIT:
NUMBER OF PITS /' OUTSIDE DIAMETER / OR WIDTH /~'~ -' ~'~ ' / ~-- ~"
. . ~' .',; -. . ~ , LENGTH ~ , DEPTH -" ,
LINING MATERIAL~-~-~/ ~' ' ' .--'~.,~',.~-z;~ ~ ~'~ ~/~'
· D STANCE FROM WELL~'~ ~- -~' ' :/;(,//~Z'/ , BUILD NO FOUNDATION./~'~7~'
NEAREST LOT LINE . ~-Z?~,. TOTAL EFFECTIVE ABSORPTION AREA (WALL AREA) ~ c/~ ~/~ SQ. FT.
TILE DRAIN FIELD:
ABSO~ SQ. FT. LENGT
DEPTH: TOP OF TILE TO FINISH GRADE DEPTH OF FILTER MATERIAL BENEATH TILE
TOTAL LENGTH
, OF LINES
--'[?~EFFECTIVE
IN. ABOVE TILE
WELL: TYPE''~'~'/~'''~,/~r/~///~/~'~c~ 7/-~ ~" ~'"~ DEPTH /-"/ DISTANCE FROM Z~-~ WATER
· BUILDING FOUNDATION, SAMPLE
NEAREST
LOT LINE ~'~-, SEWER LINE ~_~ SEPTIC SEEPAGE ~ ~_~_~..
. TANK L.~--~ , SYSTEM , CESSPOOl
., NEAREST
OTHER
, SOURCES
DISTANCES:
DATE
DIAGRAM SYSTEM
APPROVED
HEALTH AUTHORITY
GR.F~m~ER ANCHORAGE AREA BOROUGH
DEPtENT Or EI~VIRONME~TAL QUA!
3500 TUDOR ROAD
ANCHORAGE, ALASKA 99502
CASE #
Performed For H.w. DeArmoun
Legal Description: Lot 7 Block
This Form Reports Soils~g
Tract A
Depth
...... Feet Soil Characteristics
Brown sandy gravel (GW)
t0--
Gray gravelly sand (SW) with silty
sand seams and lenses
Date Performed 4/7/72
1 Subdivision DeArmoun No. 2
Percolation Test
Was Ground Water Encountered? No ~
If Yes, At What Depth?
Reading Date Gross Time
~ I Net Time !Depth to H20 Net Drop
)~ercolation Rate Mi n.t-~ '
Proposed Insta)")ation: Seepage Pit Drain Field
Depth Of Inlet Depth To Bottom Of Pit Or Trench
COMMENTS:
N
~. C rlisle ~ ara ertl le Y:National Testin~ Svs. Inc.
Date: --
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
Parcel I.D. 018-401-23 Expiration Date: 2
1. GENERAL INFORMATION
Complete legal description DeArmoun #2, Block 1, Lot 7
Location (site address) 3711 Matthews Drive Anchorage, AK
Current property owner(s) Colony Builders Inc
Mailing address
Real estate agent
Day phone (907) 345-0371
9420 Vanguard Drive, #A Anchorage, AK 99507
2. TYPE OF DWELLING:
0 Single Family (w/wo ADU).
❑ Duplex
❑ Multiple Dwellings (Single Family and/or Duplex)
Day phone
3. NUMBER OF BEDROOMS:
3
4. TYPE OF WATER SUPPLY:
TYPE OF WASTEWATER DISPOSAL:
Private Well
❑
Private Septic
Q
Water Storage
❑
Holding Tank
❑
Community Well
❑
Community
❑
Public Water System
❑■
Public Sewer
❑
Waiver request for:
Distance:
Received by:
Date:
COSA to be released to the engineer, unless otherwise requested by the engineer.
COSA Fee $ ,56, = G0 U 1 D Waiver Fee $
Date of Payment 7 Date of Payment
Receipt Number U 431 WD Receipt Number
COSA # 05 G W861 Waiver #
5. 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 for this application, shows that the
on-site water supply and/or wastewater disposal system is (are) safe, functional and adequate for the number of
bedrooms and type of structure indicated herein. I further verify that based on the information obtained from the
Municipality of Anchorage files and from my investigation and inspection, the on-site water supply and/or wastewater
disposal system is (are) in compliance with all applicable Municipal and State codes, ordinances, and regulations in
effect at the time of installation. I acknowledge that On -Site staff may visit the site to verify the information submitted.
Name of Firm Forge Civil Engineering Phone 907-522-7773
Address 1399 W. 34th Street, Suite 100 Anchorage, AK 99503
Engineer's Printed Name Michael E. Anderson, P.E. Date 7/23/2020
6. DSD SIGNATURE
System #1 Approved for -3 bedrooms
System #2 Approved for bedrooms
Disapproved
Conditional approval for
bedrooms, with the following stipulations:
o,Q.xi%` OFAli;��6ri
91
JJy�
Original Certificate Date:—/- 2- Z-2 OZO
The Municipality of Anchorage Development Services Division (DSD) issues Certificates of On -Site Systems Approval (COSA) based only upon the
representations given in paragraph 5 by an independent professional civil engineer registered in the State of Alaska. The Municipality of Anchorage is
not responsible for errors or omissions in the professional engineer's work.
7. ATTACHMENTS:
COSA Checklist X Nitrate Advisory
Septic System Advisory Arsenic Advisory
Well Flow Advisory Other
COSA Checklist blue sheet
UN -01 I V—�
WATER
AND
W
-o WASTL`_:
AER o
1
J03
ta
MU Q I N I I
91
JJy�
Original Certificate Date:—/- 2- Z-2 OZO
The Municipality of Anchorage Development Services Division (DSD) issues Certificates of On -Site Systems Approval (COSA) based only upon the
representations given in paragraph 5 by an independent professional civil engineer registered in the State of Alaska. The Municipality of Anchorage is
not responsible for errors or omissions in the professional engineer's work.
7. ATTACHMENTS:
COSA Checklist X Nitrate Advisory
Septic System Advisory Arsenic Advisory
Well Flow Advisory Other
COSA Checklist blue sheet
Legal Description: DeArmoun #2, Block 1, Lot 7
If more than 1 septic system on lot: COSA Checklist # of
A. WELL DATA
❑ Well log is filed with Onsite (or attached)
Date drilled
Total depth ft
Cased to ft
❑ Sanitary seal is functioning correctly
❑ Wires are properly protected
Casing height (above ground) in.
Date of flow test for COSA
Static water level at beginning of test ft.
Comments Public Water System
B. TANK DATA
Age of tank(s) <1 years
Tank type/material Septic/Plastic
Measured operating fluid level in septic tank New
❑ Standpipes/foundation cleanout per record drawing
Date of pumping New Construction - 1/27/20
D. ABSORPTION FIELD DATA 5' Wide Trench
Which system tested (date installed) 2/12/20
❑ ALL standpipes present per record drawing
Total measured depth from grade 5.9/6.2 ft (max)
Measured depth to pipe invert from grade 5.4/5.7 ft (min)
❑ N/A — pressurized field
BE Monitor tubes go to bottom of effective. If not, state
depth into effective
❑ Code -required soil cover over field
❑ System presoaked
(Required if vacant for greater than 30 days prior to
date of test)
Gallons introduced NA gallons
Comments/Deficiencies:
COSA Checklist yellow sheet
Parcel ID: 018-401-23
Structure served by this system
Well production at time of test gpm
Water storage tank volume gallons
Well disinfected for coliform test? ❑ Yes ❑ No
❑ Coliform bacteria is Negative
Nitrate mg/L ❑ Nitrate less than MRL (ND)
Arsenic ug/L ❑ Arsenic less than MRL (ND)
Collected by
Date of Sample
C. LIFT STATION
❑ Required maintenance completed
Age of lift station years
Lift station material
Comments:
Adequacy test date New Construction
Results ❑Pass For bedrooms
Fluid depth prior to test in
Water added gal
New depth in
Elapsed time min
Final fluid depth in
Absorption rate gpd
Any rejuvenation treatment (past 12 months)
If yes, enter date
E. SEPARATION DISTANCES
From Private Well on Lot to: (Please enter distances if less than required or if community well) - Public Water System
Septic Tank/Lift Station on Lot > 100'
121
Yes
Community Sewer Manhole/Cleanout > 100'
❑ Yes
if No
ft
❑ Yes
if No ft
Neighboring Tank > 100' ❑ Yes
if No
ft
Private Sewer/Septic Line > 25' ❑ Yes
if No ft
Absorption Field on Lot > 100' ❑ Yes
if No
ft
Holding Tank > 100' ❑ Yes
if No ft
Neighboring Absorption Fields > 100'
Yes if No ft
Water Main > 10'✓Q
Animal Containment > 50' ❑ Yes
if No ft
❑ Yes
if No
ft
Yes if No ft
Water Service Line > 10'
F/
Yes
if No
Manure/Animal Excreta Storage > 100'
If septic tank is under driveway
Community Sewer Main > 75' ❑ Yes
if No
ft
0 Yes
if No ft
From Septic/Holding Tank on Lot to: (Please enter distances if less than required)
Building Foundations > 10'✓❑
121
Yes
if No
ft
Surface Water > 100'
Q✓ Yes if No ft
Property Line > 5'✓0
Yes
Yes
if No
ft
Wells on Adjacent Lots:
✓®
Absorption Field > 5'
M
Yes
if No
ft
Private Wells > 100'✓l
Yes if No ft
Water Main > 10'✓Q
ft
Yes
if No
ft
Community Wells > 200'✓�
Yes if No ft
Water Service Line > 10'
F/
Yes
if No
ft
If septic tank is under driveway
comment below
From Absorption Field on Lot to: (Please enter distances if less than required)
Building Foundation > 10'
121
Yes
if No
ft
If absorption field is under driveway comment below
Property Line > 10'
17-71
Yes
if No
ft
Wells on Adjacent Lots:
Water Main > 10'
✓®
Yes
if No
ft
Private Wells > 100' Yes if No
Water Service Line > 10'
Z
Yes
if No
ft
Community Wells > 200' Yes if No
Surface Water > 100'✓Q
Yes
if No
ft
F. ENGINEER'S COMMENTS
Lot is served by the Public Water System.
G. ENGINEER'S CERTIFICATION --&,OF too
44
l certify that / have determined through field inspections and review '`P,.••• '••.,5�#�
Of Municipal records that the above systems are in conformance with �•� °'o y '
MOA COSA guidelines in effect on this date. ' =•• 49
MICHAEL E. ANDERSON w
�4 No. CE -4381 _AV
�� �F '•,, 7/24/20
COSA Checklist yellow sheet ,
4
®� 0 phi....ESS\C�%\����'�
ft
ft