HomeMy WebLinkAboutGREENBROOK BLK 2 LT 12EOnsite File
Greenbrook
Block 2
Lot 12E
#017-023-90
Municipality of Anchorage
On -Site Water and Wastewater Section - (907) 343-7904 Page 1 of 3
ON-SITE WASTEWATER INSPECTION REPORT
Permit Number: OSP201386 PID Number: 017-023-90
Dwelling: ❑■ Single Family (SF) ❑ with ADU ❑ Duplex (D) ❑ Two Single Family Project: 9 New ❑ Upgrade
Name
Colony Builders, Inc.
ABSORPTION FIELD
A Deep Trench E] Wide Trench E] Bed E] Mound
Site Address
13001 Algarin Circle
❑ Other
Phone
345-0371
Number of Bedrooms
4
Soil Rating
Total depth from original grade
0.45 GPD/SF
12.0 Ft.
LEGAL DESCRIPTION
Depth to pipe invert from original grade
4.0 Ft.
Gravel depth beneath pipe
8.0 Ft.
Subdivision Block Lot
Greenbrook 2 12E
Fill added above original grade
0.7 Ft.
Gravel length
84 Ft.
Township Range Section
Gravel width
3.0 Ft.
Beds: Number of Lines
Distance between lines
Ft.
SEPARATION DISTANCES
To
Septic
Absorption
Lift Station
Holding
Sewer
Total absorption area
Number of trenches
Dist. between trenches
From
Tank
Field
Tank
Line
1344 Ft2
1
Ft.
Well
N/A
N/A
N/A
N/A
N/A
TANK 9 Septic ❑ S.T.E.P. ❑ Holding ❑ Other
Manufacturer
Greer
Capacity
1250 Gal.
Surface Water
>100'
>1 00'
N/A
N/A
Material
Plastic
Number of compartments
2
Lot Line
>5'
>10'
N/A
N/A
NA
Foundation
F>1 0'
> 10'
N/A
N/A
LIFT STATION
Manufacturer
Capacity
Remarks Tank and line from house to tank are insulated
Gal.
Alarm location
Electrical installed by
Installer
PIPE MATERIAL House to tank D3034 Tank to D3034
drainfield
Red Dog Masonry
Drainfield D3034 CO/MTD3034
Inspector J. Millette
BENCH MARK (Assumed elevation) 100 ft
Inspection 15' 1/27/21 1/28/21
Location and description
2 n
3rtl 1/29/21 41' 1/29/21
Bottom of siding @ point A
ON-SITE WATER AND WASTEWATER SECTION APPROVAL
Engineer's Stamp
OF A4,
Conditional Approval: Date
,law�P
i * '491H
rJ . • . • • . . . . • .. . j
r -• • Benja • .. •chiller %
Septic Sy
�� �F� •
Approvedstem
1� w Date 3—�d-�j
CE 12592 . • �`���
�sisl��Fo . 3/8/21
l�® PROFESS10N4.�
Note: this approval does not include well permit requirements.
,7_..
`i U l
PERMIT # OSP201386
1N TER SERVICE LINE
E-STIM- TED LOCATION
>10' SEPARATION FROM
ALL COMPONENTS OF
THE SEPTIC SYSTEM
WAS VERIFIED �T <
CONSTRUCTION
PID # 017-023-90
1
LOT 12D
LOT 12E , :Z
84' LONG x 3'V\
EFFECTIVE
ABSORPTION 7
I
5'G ESMT
lNGINl ERIN(
4
of
Benla in Schiller
CE 32
318121
GUY & ANCHOR -ES
TO'WgTERE ESAE ESA MENT
CEA
""----_.
l FCO l
1,250 GALLON
f SEPTIC TANK
' w/ 20" MANWAY
v1T1
TH3 A JERNATE SITE
J�v
r®
TH2
5' CEA ESMT
TEST HOLE LOCATIONS WERE
CONFIRMED AT CONSTRUCTION
LOT 2
A\ B
FCO
1.0 `
23.3
MH
33.5
731.9
38.2
35.0
2C0
41.4
370
C01
52-7,,45.'5
MT1
58.0
.4
CO2,
134.6
128.8,
r ,MT2 '
-, 127.8
122.0
LEGEND
CO - CLEANOUT
2CO - DOUBLE CLEANOUT
FCO - FOUNDATION CLEAN(
FS - FLOW SPLITTER VALVE
MH - MANHOLE
MT - MONITORING TUBE
SV - SEPTIC VENT
TH - TEST HOLE
PERMIT # OSP201386
0I -
0:E
cJV. i
2" INSULATION
h— O
98.9 FINISH GRADE 98.2 ORIGINAL GRADE U
ENGINEE0.ING
PROFILE AS -BUILT
(NO SCALE)
MM
of A4.""h
"A
Benjatttn Schiller
i$ ???ffiiCE 125923/8/21
$����� PROFESSIONP4��
E SOILS LOG AND PERCOLATION TEST
N G I N E E R I N G
LEGAL DESCRIPTION: GREENBROOK, BLOCK 2, LOT 12E
PERFORMED FOR: COLONY BUILDERS
DATE: 1/25/21 PROJECT No.:
PARCELID#: 017-023-90 TECHNICIAN: J. MILLETTE
DEPTH TEST HOLE 2
(feet)
1
2
3
4
5
6
7
8
9
10
11
12
0
14
15
16
17
18
19
20-
!lIIllilll 11' OB SLOPE
r '
J
SILTY SAND SM/ML
SAND POCKETS
j c � Yi
49 T.
1�-. --
...........
Benja in Schiller
Aw
la��F�pROFESSiON� .�
D
BOTTOM OF HOLE
COMMENTS:
DATE
READING
WAS GROUND WATER ENCOUNTERED? No
NET TIME
WATER NET
DROP
IF YES a WHAT DEPTH? -
L
(MINUTES)
(MINUTES)
(INCHES)
DEPTH TO WATER AFTER MONITORING: NONE
0
=
1
DATE OF MONITORING: 2/5/21
P
4T-6
_
E
D
BOTTOM OF HOLE
COMMENTS:
DATE
READING
GROSS TIME
NET TIME
WATER NET
DROP
(MINUTES)
(MINUTES)
(INCHES)
(INCHES)
1/25/21
1
1:02
4T-6
2
1:32
30
616-
216-
3
1:33
416-
4
2:03
30
516
116
5
2:04
416
6
2:34
30
516
116
PERCOLATION RATE: 21.8 (MIN/INCH) PERC. HOLE DIA. 6 (INCHES)
TEST RUN BETWEEN: 10 FT. and 11 FT.
SOILS LOG AND PERCOLATION TEST
E N G I N E E R I N G
LEGAL DESCRIPTION: GREENBROOK, BLOCK 2, LOT 12E
PERFORMED FOR: COLONY BUILDERS
DATE: 1/25/21 PROJECT No.:
PARCELID#: 017-023-90 TECHNICIAN: J. MILLETTE
DEPTH TEST HOLE 3
(feet)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
II II IIII 11 OB
r
SILTY SAND SM/ML
SAND POCKETS
SLOPE
+ WAS GROUND WATER ENCOUNTERED? NO
IF YES a WHAT DEPTH? -
'r DEPTH TO WATER AFTER MONITORING: NONE
DATE OF MONITORING: 2/5/21
BOTTOM OF HOLE
COMMENTS:
P
E
DATE
READING
GROSS TIME
(MINUTES)
NET TIME
(MINUTES)
DEPTH To
WATER
(INCHES)
NET DROP
(INCHES)
1/25/21
1
3:28
316
2
3:58
30
4 6
116
3
3:59
316
4
4:29
30
416
10
5
4:30
31s
6
5:00
30
41°-6
11s
PERCOLATION RATE: 30 (MIN/INCH) PERC. HOLE DIA. 6 (INCHES)
TEST RUN BETWEEN: 10 FT. and 11 FT.
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: OSP201386
Work Type: Septic Initial
Tax Code Number: 01702390000
Site Legal Address: GREENBROOK BLK 2 LT 12E G:2839
Site Mailing Address: 13001 ALGARIN CIR, Anchorage
Owner: DENGEL BARTON & CATALINA
Design Engineer: FORGE ENGINEERING
This permit is for the construction of:
Effective Date:
Expiration Date:
Lot Size in Sq Ft:
Total Bedrooms:
10/5/2020
10/5/2021
84622
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: A test hole is required prior to construction of the absorption fields to confirm minimum
separations to impermeables and seasonal high groundwater, as well as to confirm the percolation rate of the
accepting soil. If results require a design change, construction shall stop pending review and approval of a
change order. Please submit results with inspection report (or change order, if required).
4
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Received By: o Date:
Issued By: Date:
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CO #1
ALTERNATE SITE
1"=50'
84' LONG x 3' WIDE x 8'
EFFECTIVE DEPTH
ABSORPTION TRENCH
4-BDRM HOME
1,250 GALLON SEPTIC
TANK w/20" MANWAY
NOTE:
NO SLOPES >25% WITHIN 50' OR SURFACE WATER WITHIN 100' OF THE
PROPOSED SEPTIC SYSTEM
NO EXISTING WELLS - PROPERTIES ARE ON COMMUNITY WATER
SYSTEM.
CO - CLEANOUT
2CO - DOUBLE CLEANOUT
FCO - FOUNDATION CLEANOUT
FS - FLOW SPLITTER VALVE
MH - MANHOLE
MT - MONITORING TUBE
SV - SEPTIC VENT
TH - TEST HOLE
LEGEND
CO
TH3
GREENBROOK, BLOCK 2, LOT 12 E
ALGARIN CIRCLE1/26/21 FEET
0 50 100
5' GAS ESMT
10' WATER
E
A
S
E
M
E
N
T 10' UTILITY EASEMENT5' CEA ESMT
GUY & ANCHOR ESMT
CEA ESMT
TH2 860855850CO MT
2CO
SV
MH
FCO
MT
WATER SERVICE LINE. EXACT
LOCATION TO BE DETERMINED
IN THE FIELD. INSURE A
MINIMUM 10' SEPARATION
FROM ALL COMPONENTS OF
THE SEPTIC SYSTEM.
CO #1
GREENBROOK, BLOCK 2, LOT 12E
DESIGN FACTORS: SYSTEM REQUIREMENTS:
600 GPD PEAK FLOW
PERK RATE: 31-60 MIN/IN
APPLICATION RATE: 0.45 GPD/SF
8' DEEP TRENCH SYSTEM
1,250-GALLON SEPTIC TANK
TYPICAL TRENCH SECTION
(NO SCALE)
4" PERFORATED PVC (HOLES DOWN)
DRAINFIELD ROCK
3'
6"
6"
3'6"
8'
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: 12' BELOW GRADE
FLOW LINE ELEVATION: 4' BELOW GRADE
TOP OF TRENCH: .5' ABOVE GRADE
600 GPD / 0.45 GPD/SF /8' EFF. DEPTH * 2 SIDES = 83.3 LF TRENCH REQUIRED (188 LF SPECIFIED)
1/25/21
GEOTEXTILE FABRIC
CO #1
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
PERC. HOLE DIA. (INCHES)PERCOLATION RATE: (MIN/INCH)
TEST RUN BETWEEN: FT. and FT.
COMMENTS:
DATE OF MONITORING:
WAS GROUND WATER ENCOUNTERED?
DEPTH TO WATER AFTER MONITORING:
IF YES @ WHAT DEPTH?
21.8 6
10 11
1:02
1/25/21
4 0
16
1' OB
Professional Engineers Stamp:
1/26/21
30
BOTTOM OF HOLE
SILTY SAND SM/ML
SAND POCKETS
1
1:32 6 0162
1:33 4 016
30
3
2:03 5 7
164
2:04 4 0
16
30
5
2:34 5 6
166
2 0
16
1 7
16
1 6
16
CO #1
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 3
PERC. HOLE DIA. (INCHES)PERCOLATION RATE: (MIN/INCH)
TEST RUN BETWEEN: FT. and FT.
COMMENTS:
DATE OF MONITORING:
WAS GROUND WATER ENCOUNTERED?
DEPTH TO WATER AFTER MONITORING:
IF YES @ WHAT DEPTH?
30 6
10 11
3:28
1/25/21
3 0
16
1' OB
Professional Engineers Stamp:
1/26/21
30
BOTTOM OF HOLE
SILTY SAND SM/ML
SAND POCKETS
1
3:58 4 4
162
3:59 3 0
16
30
3
4:29 4 0
164
4:30 3 0
16
30
5
5:00 4 0
166
1 4
16
1 0
16
1 0
16
CO #1
MUNICIPALITY F 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. 017-023-90
1. GENERAL INFORMATION
Expiration Date: I —Zl — 2- (9 Z-�
Complete legal description Greenbrook Sub, Block 2, Lot 12E
Location (site address) 13001 Algarin Circle
Current property owner(s) Colony Builders, Inc Day phone (907) 345-0371
Mailing address 9420 Vanguard Drive, Unit A, Anchorage, AK 99507
Real estate agent . Day phone
2. TYPE OF DWELLING:
i❑ Single Family (w/wo ADU)
❑ Duplex
❑ Multiple Dwellings (Single Family and/or Duplex)
3. NUMBER OF BEDROOMS: 4
4. TYPE OF WATER SUPPLY:
TYPE OF WASTEWATER DISPOSAL:
Private Well
❑
Private Septic
0
Water Storage
❑
Holding Tank
❑
Community Well
Q
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 $ 120 (RUSH)
Date of Payment 3 ) 0 2 i
Receipt Number 019 50b
COSA # OSC211097
Waiver Fee $
Date of Payment
Receipt Number
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 Engineering Phone (907) 522-7773
Address 1399 W. 34th Ave Suite 101, Anchorage, AK 99503
Engineer's Printed Name Benjamin Schiller. Date 03/08/21
i CO
49-
6. DSD SIGNATURE / I
System #1 Approved for bedrooms % ' '
BenjamLrvSchiller
System #2 Approved for bedrooms �� ��29•. CE 12592 •O o
AW
Disapproved kPROFESS1oNPAr
Conditional approval for bedrooms, with the following stipulations:
BY' w- Original Certificate Date:_ —1
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: Greenbrook Sub, Block 2, Lot 12E
If more than 1 septic system on lot: COSA Checklist # of
A. WELL DATA
I 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 COMMUNITY WELL
B. TANK DATA
Age of tank(s) �1 years
Tank type/material Septic/Plastic
Measured operating fluid level in septic tank NEW
9 Standpipes/foundation cleanout per record drawing
Date of pumping Tank installed on 1/28/21
D. ABSORPTION FIELD DATA Deep Trench
Which system tested (date installed) 1/29/21
.._9_ALL standpipespresentper record drawing. -
Total measured depth from grade 12.7 ft (max)
Measured depth to pipe invert from grade 4.7 ft (min)
❑ N/A — pressurized field
Q 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 N/A gallons
Comments/Deficiencies:
COSA Checklist yellow sheet
Parcel ID: 017-023-90
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)
Arsenl ,� ug/L ❑ Arsenic less than MRL (ND)
Collected by
Date of Sample
C. LIFT STATION
i2'f�sq ired maintenance completed
Age of lift station years
Lift station material
Comments:
Adequacy test date NEW
Results ®✓ Pass For 4
Fluid depth prior to test
r added gal
New dep in
Elapsed time min
Final fluid depth
_ bedrooms
in
Absorption rate gpd \
Any rejuvenation treatment (past 12 mon
If yes, enter date
E. SEPARATION DISTANCES
From Private Well on Lot to: (Please enter distances if less than required or if community well)
❑✓
Yes
Septic Tank/Lift Station on Lot > 100'
r7 Yes
if
NSA
Community Sewer Manhole/Cleanout > 100'
NSA
Yes
No
ft
[7 Yes
if No
ft
Neighboring Tank > 100' ❑ Yes
if No
NSA ft
Private Sewer/Septic Line > 25' ❑ Yes
if No
NSA ft
Absorption Field on Lot > 100' ❑ Yes
if No
NSA ft
Holding Tank > 100' ❑ Yes
if No
NSA ft
Neighboring Absorption Fields > 100'
✓❑ Yes if No ft
NSA
Animal Containment > 50' ❑ Yes
if No
NSA ft
❑ Yes
if No
ft
Community Sewer Main > 75' F-1Yesif
No
NSA ft
Manure/Animal Excreta Storage > 100'
F-1Yesif
No
NSA ft
From Septic/Holding Tank on Lot to: (Please enter distances if less than required)
Building Foundations > 10'
❑✓
Yes
if No
ft
Surface Water > 100'
P Yes if No ft
Property Line > 5'
Yes
Yes
if No
ft
Wells on Adjacent Lots:
✓®
Absorption Field > 5'
❑✓
Yes
if No
ft
Private Wells > 100'
✓❑ Yes if No ft
Water Main > 10'
❑✓
Yes
if No
ft
Community Wells > 200'
✓❑ Yes if No ft
Water Service Line > 10'
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'
❑✓
Yes
if No
ft
If absorption field is under driveway comment below
Property Line > 10'
❑✓
Yes
if No
ft
Wells on Adjacent Lots:
Water Main > 10'
✓®
Yes
if No
ft
Private Wells > 100' ❑✓ Yes if No ft
Water Service Line > 10'
F,71
Yes
if No
ft
Community Wells > 200' 0 Yes if No ft
Surface Water > 100'
0
Yes
if No
ft
F. ENGINEER'S COMMENTS
G. ENGINEER'S CERTIFICATION
1 certify that I have determined through field inspections and review
of Municipal records that the above systems are in conformance with
MOA COSA guidelines in effect on this date.
COSA Checklist yellow sheet
IF
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