HomeMy WebLinkAboutSPRUCE TERRACES LOT 13SPRUCE TERRACES
Lot 13
Municipality of Anchorage
On -Site Water and Wastewater Section - (907) 343-7904 Page 1 of 1
ON-SITE WASTEWATER INSPECTION REPORT
Permit Number: OSP251026 PID Number: 020-044-18
Dwelling: X Single Family (SF) El with ADU F-1 Duplex (D) FJ Two Single Family Project: I New M Upgrade
Name
Mission Hills LLC
ABSORPTION FIELD
El Deep Trench OR Wide Trench El Bed F-1 Mound
Site Address
6990 Avalanche Circle
El Other
Phone
Number of Bedrooms
Soil Rating
depth from original grade
4
1.2 GPD/SF
JTotal
10.0 Ft.
LEGAL DESCRIPTION
Depth to pipe invert from original grade
7.0 Ft.
Gravel depth beneath pipe
3.0 Ft.
Subdivision Block Lot
Spruce Terraces 13
Fill added above original grade
0.4-0.5 Ft.
Gravel length
60 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
Dist. between trenches
From
Tank
Field
Tank Line
517 Ft2
1
n/a Ft.
Well
200'+
200'+ NA
NA 25'+
TANK 9 Septic [I S.T.E.P. 1771 Holding [I Other
Manufacturer
Greer
Capacity
1250 Gal.
Surface Water
100'+
100'+ NA
NA
Material
Number of compartments
Lot Line
51+
10'+NA
NA NA
HDPE (Deep Burial Model)
2
Foundation
101 +
10'+ NA
NA
LIFT STATION
Manufacturer
Capacity
Remarks
Gal.
Alarm location
Electrical installed by
PIPE MATERIAL House totank D3034 Tank to D3034
draineld
Installer
-fi
Promraning Excavation, Inc.
Drainfield D3034 CO/MT D3034
Inspector PES
BENCH MARK (Assumed elevation) 100.0 ft
Inspdates: ection v, 07/21/25 08/19/25
Location and description
2nd
31d 08/19/25 411 09/10/25
1 Finished Floor of Shop/Office
ON-SITE WATER AND WASTEWATER SECTION APPROVAL
Engineer's Stamp
AC�S���
Conditional Approval: Date
C.)
.F
®.. . ....... .
te *v, n annone
Septic SystCE
8149 ,
s.. 1111012-02-5 •- AW'
'`FF;
Approved Date
1 31
ote: this approval does not include well permit requirements.
(Rev 05/02/1@)
10'
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10
'
33.7'20.0'
26.7'
10.6'15.4'
TH-13
INSTALLED ABSORPTION FIELD (N)
60LF x 5.0'W x 3.0' E.D. , 10.0' T.D.
INSTALLED W/CO & MT AT EACH END
INSTALLED 1250gal SEPTIC TANK (N)
INSTALLED W/FC(S) AT EACH BLDG.
INSTALLED W/DCO AFTERCO2
MT2 CO1
MT1
T2
MH1
DCO
ASSUMED ROUTE WATER SERVICE LINE (E)
(BY OTHERS)
FC2
TH-14
A
B
APPROXIMATE EXTENT R.I.
(33 PSI 2.0'W SHEETS CENTERED OVER LINES)
BLDG OVERHANG (E)
FC1
975
980
985
990
995
1000
1005
970
970
965
960
955
950
945
940
970
NO WELLS OR SEPTIC W/IN 100' OF INSTALLATION
3 BR
SFD
SHOP/OFFICE
PA
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LOT SERVED BY COMMUNITY WATER
(SERVICE EXTENDS FROM ROW)
VACANT LOT
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1"
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NEW SEPTIC
WATER LINE / WELL
RADIUS
A B
FC1 38.0 77.7
FC2 5.7 37.0
MH1 32.4 42.2
T2 35.9 40.7
DCO 40.2 44.0
CO1 52.5 45.7
MT1 50.0 43.4
CO2 69.0 93.1
MT2 70.5 93.8
ESMT/SETBACK
STREAM/DRAINAGE
WAY CENTERLINE
FLOW PATH
RECORD DRAWING
THIS RECORD DRAWING REPRESENTS THE AS-BUILT CONDITION OF THE PROPERTY IMPROVEMENTS DESCRIBED ABOVE.
THE DRAWING AND ANY OTHER SUBSEQUENT ATTACHED OR INCLUDED INFORMATION IS BASED ON PERIODIC VISUAL OBSERVATION
BY A REPRESENTATIVE OF PES ALONG WITH NOTES, PHOTOS, AND OTHER INFORMATION PROVIDED BY THE INSTALLER OF THE SYSTEM.
THE INFORMATION PROVIDED IN THE RECORD DRAWING APPEARS REASONABLE AND REPRESENTS THAT THE PROJECT WAS DESIGNED AND CONSTRUCTED IN GENERAL
CONFORMANCE OF 18 AAC 72, THE ADEC ONSITE WASTEWATER SYSTEM INSTALLATION MANUAL, AND AMC 15.65 WHERE APPLICABLE. PES SHALL NOT BE HELD LIABLE FOR
SYSTEM DEFICIENCIES WHICH FALL OUTSIDE THE SCOPE OF THE REQUIRED VISUAL OBSERVATIONS OR SUBSEQUENT OBSERVATIONS IF REQUESTED BY THE INSTALLER. SEPTIC
SYSTEM INSTALLERS ARE TRAINED AND APPROVED BY THE MUNICIPALITY OF ANCHORAGE AND OR ADEC AS APPLICABLE. INSTALLERS ARE RESPONSIBLE FOR CONSTRUCTING
THE SEPTIC SYSTEM AS DESIGNED AND ENSURING THEIR WORK CONFORMS TO THE CODES AND POLICIES STATED ABOVE.
ABBREVIATIONS
CO CLEAN OUT NO.
DCO DOUBLE CLEANOUT
DV DIVERTER VALVE
(E)EXISTING
FC FOUNDATION CLEANOUT
FS FLOW SPLITTER
MT MONITOR TUBE NO.
MH MANHOLE NO.
(N)NEW
NIC NOT IN CONTRACT
(P)PROPOSED
TH TEST HOLE
TYP TYPICAL
DESIGN PARAMETERS
PRIMARY/RESERVE SEPTIC SYSTEM
NO. BEDROOM: 4 (600 gpd)
TANK SIZE: 1250g *(MIN)
-USE MOA APPROVED TANK
PERC RATE: <1 MPI
SOIL RATING: 1.2 GPD/SF
AREA RQD: 500 SF
SYS. TYPE: 5.0' WIDE TRENCH 3.0' E.D.
RF: 0.58
MIN LENGTH: 58 LF
USED:
60LF x 5.0'W x 3.0' E.D. , 10.0' T.D.
TOTAL AREA: 517 SF
TANK SIZE: 1250gal
CO2 MT2
92.9
12
SILTY SAND
(TIGHT)
8
11
10
9
SM
6
7
5
3
4
2
TEST HOLE 14
ELEV.: 99.9)
OR
1
13
14
15
16
83.9
BOH
89.9
OG: 99.9
FG
(EAST END): 100.4
FG
(WEST END): 100.3
4"Ø WYE TO PERFORATED LATERAL
FC1
93.7 93.5
DCO
92.9
89.9
GP/GM
SANDY
GRAVEL
W/SILT
FC2 T2
MH1
4.0' MIN.
4.0' MIN.
2'' R.I. (2.0' WIDE SHEETS
CENTERED OVER LINE)
2'' R.I. (2.0' WIDE SHEETS
CENTERED OVER LINE)
95.6
95.6
4"Ø D3034 PERFORATED DRAIN PIPE
DRAIN ROCK 6" ABOVE PIPE INV
FILTER FABRIC
MT1
3.0' DRAIN ROCK
CO1
TEST HOLE PERFORMED: 10/14/2020
OBSERVED DRY: 10/27/2020
1250GAL GREER
POLY TANK
OG/FG: 100.5
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WASTEWATER SYSTEM PROFILE
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
hftp://www.muni.org/onsite
On -Site Wastewater Disposal System Permit
Permit Number: OSP251026
Work Type: Septic Initial
Tax Code Number: 02004418000
Site Legal Address: SPRUCE TERRACES LOT 13 G:3239
Site Mailing Address: 6990 AVALANCHE CIR, Anchorage
Owner: MISSION HILLS LLC
Design Engineer: PANNONE ENGINEERING SERVICES
This permit is for the construction of:
Effective Date:
Expiration Date:
Lot Size in Sq Ft:
Total Bedrooms:
f
Ucrpartrt7et�t
2/14/2025
2/14/2026
65097
2 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
Received By: € S '��`� �'� S Date: _
Issued By: 0 Date:
4
MUNICIPALITY OF ANCHORAGE
Development Services Department Phone: 907-343-7904
On -Site Water & Wastewater Section
ON -SITE SEPTIC/WELL PERMIT APPLICATION
Parcel I.D. 020-044-18
Property owner(s) Mission Hills LLC Day phone
Mailing address
Site address NHN Avalanche Circle
Legal description Spruce Terraces, Lot 13
Number of Bedrooms 4
Engineering Firm Pannone Engineering Services, LLC
Building Permit Number R2-5- /OOLA Not Applicable F-1
APPLICATION IS FOR:
(Z all that apply)
Absorption Field El
R.
El
F-1
R
Septic Tank
Holding Tank
Privy
Well
APPLICATION IS AN:
Initial El
Upgrade EJ
Renewal E]
THIS APPLICATION INCLUDES A WAIVER REQUEST FOR:
Permit/Rush Fees: A.q C,
Date of Payment:
Permit No..S
Waiver Fees:
Date of Payment:
Waiver No.
Distance:
Pannone Engineering Services LLC
Steven R. Pannone, Principal
Registered Professional Engineer
E‐mail: steve@panengak.com
Mailing: P.O.Box 1807, Palmer, AK 99645
Telephone: (907) 745‐8200 FAX: (907) 745‐8201
Municipality of Anchorage
Development Services Department
On‐Site Water & Wastewater Program
4700 Elmore Road
Anchorage, Alaska
Subject: Spruce Terraces, Lot 13
Septic System Permit Request
This is a design narrative for a permit to install a new septic system on the subject property. The proposed system will serve a
proposed three‐bedroom (3) house and a shop with an office. The system will be designed as a four bedroom (4br) for
additional reserve capacity. This lot and surrounding lots are served by a community water system. There are no wells within
200’ of this system.
1. Soils:
A test hole was performed on this lot by Pannone Engineering Services, LLC on 10/14/2020. Groundwater was not observed
during the excavation of the test hole, and bedrock was not encountered. No groundwater was observed in the test hole
monitor tube after 7‐days. Based on the results of the percolation test and overall soils appearance an application rate of 1.2
gpd/SF was used for the design of a conventional wastewater treatment system in the area of the test hole.
2. Soil Absorption System Design.
a. See Sheet 1 of the design package.
3. Surface Water:
There is no surface water within 100 feet of the proposed septic tank and drain field.
4. Topography:
See attached site plan for area topography. There are no steep slopes in the area of the drain field.
5. Drawing Markings: The Drawings are marked “For MOA Review Only”. When written notification that the review is
complete and no further comments are received from MoA On‐Site Department, the note will be removed and “For
Construction” drawings will be issued.
The proposed installation will not affect the future development of this or the surrounding lots.
If you have any questions or concerns, please contact me at (907) 745‐8200.
Sincerely,
SRP
Steven R. Pannone, P.E. F. ASCE
Owner/Civil Engineer
14 January 2025
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP251026, Curtis Townsend, 02/14/25
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP251026, Curtis Townsend, 02/14/25
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP251026, Curtis Townsend, 02/14/25
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP251026, Curtis Townsend, 02/14/25
040.002 Crowther Associates
1632 Bellevue Circle / Anchorage, Alaska 99515
Telephone (907) 349-2198 / E mail: crowther@alaska.net
Client: Pannone Engineering Services
Project: Spruce Terrace Subdivision
Date: November 9, 2020
Particle Size Distribution Table
(percent passing sieve size)
Sample Source TH – 6,
6’ Depth
TH – 13,
10’ Depth
Sieve Size Percent Finer Percent Finer Percent Finer Percent Finer
3 inch 100 100
1-1/2 inch 100 100
¾ inch 80 87
#4 50 50
#10 35 33
#40 17 14
#100 11 8
#200 9 7
0.02 mm
Classification Sandy Gravel
with Silt
(GP-GM)
Sandy Gravel
with Silt
(GP-GM)
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
OSC251514
Parcel ID 020 -044-18 Expiration Date:
Legal description SPRUCE TERRACES LT 13
site address 6990 AVALANCHE CIR
Current property owner(s) MISSION HILLS LLC
8/19/2026
X The On-site system(s) is/are approved for 4 bedrooms
Conditional approval for bedrooms, with the following stipulations:
Comments or conditions:
No comments
N
Original Certificate Date:
11/13/2025
This Ce ''cate of On -Site Systems Approval (COSA) is intended to demonstrate the subject
syste (s) is/are in substantial compliance with municipal code. The Municipality of Anchorage,
De lopment 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
a
Development Services Department
On -Site Water & Wastewater Section
Phone: 907-343-7904
Fax: 907-343-7997
Certificate of On -Site Systems Approval Application
1. GENERAL INFORMATION
Parcel I.D. 020-044-18
Complete legal description Spruce Terraces Lot 13
Location (site address) 6990 Avalanche Circle
Current property owner(s) Mission Hills LLC
2. ON-SITE SYSTEMS SIZED FOR 4 BEDROOMS
Day phone
3. TYPE OF WATER SUPPLY: ❑ Private Well serving # dwelling units
❑ Other Non-public well as regulated by MOA ❑ Water Storage
❑0 Community Well or Public
4. TYPE OF WASTEWATER DISPOSAL: X Private Septic ❑ Private Septic serving 2 dwelling units
❑ Holding Tank ❑ Community Septic or Public Sewer
5. SEPTIC TANK: ❑ Steel X Plastic ❑ Concrete ❑ Fiberglass
Age <1 - See advisory if steel or fiberglass older than 20 years
6. ABSORPTION FIELD: ❑ AWWTS ❑ Bed ❑ Deep Trench X Wide Trench ❑ Seepage Pit
Waiver request for:
Expedited review requested: ❑
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 $ ?S Waiver Fee $
Date of Payment 1111212f Date of Payment
COSA # AC LS1 S Waiver #
COSA App11cation_Apr2025.doc
COSA Checklist_May2025.docx
COSA Checklist
Legal Description: Parcel ID:
If more than 1 well and/or septic system on lot, provide separate checklist. Structure served by this system ____
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.
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
Comments __________________________________________________________________________________
B. TANK DATA
Measured operating fluid level in septic tank
Date of pumping
Required maintenance completed, if AWWTS
Comments:
C. LIFT STATION
Required maintenance completed
Age of lift station years
Lift station material
Comments:
D.DISPOSAL FIELD DATA
Which system tested (date installed)
ALL standpipes present per record drawing
Total measured depth from grade ft (max)
Measured depth to pipe invert from grade ft (min)
N/A – pressurized field.
Per record drawings, field is insulated.
Monitor tubes go to bottom of effective.
If not, state depth into effective
Presoaked required if
(Required if house vacant or field not used for more
than 30 days prior to date of test)
Gallons introduced gallons date
Any rejuvenation treatment (past 12 months)
If yes, enter date
Adequacy test date
Results Pass
Fluid depth prior to test in
Water added gal
New fluid depth in
Elapsed time min
Final fluid depth in
Absorption rate gpd
FIELD STATUS – POST RECOVERY
Effective depth (per record drawings) in
Effective depth used in
Effective depth remaining in
Comments/Deficiencies:
E. SEPARATION DISTANCES
From Well on Lot to: (Please enter distances if less than required)
Septic Tank/Lift Station on Lot > 100’
Yes if No ft
Neighboring Tank > 100’ Yes if No ft
Disposal Field on Lot > 100’ Yes if No ft
Neighboring Disposal Fields > 100’
Yes if No ft
Sewer Line/Main > 100’ Yes if No ft
Sewer Manhole/Cleanout > 100’
Yes if No ft
Sewer Service/Septic Line > 25’ Yes if No ft
Holding Tank > 100’ Yes if No ft
Animal Containment > 50’ Yes if No ft
Manure/Animal Excreta Storage > 100’
Yes if No ft
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’ Yes if No ft
Field to Foundation > 10’ Yes if No ft
Tank to Property Line > 5’ Yes if No ft
Field to Property Line > 10’ Yes if No ft
Water Main/Service Line > 10’ Yes if No ft
Surface Water > 100’ Yes if No ft
Wells on Adjacent Lots:
Wells > 100’ Yes if No ft
Community Wells > 200’ Yes if No ft
If tank or field is under driveway comment below
F.ENGINEER’S COMMENTS
G.CERTIFICATION & STATEMENT OF INSPECTION BY ENGINEER
Phone Name of Firm
Engineer’s Printed Name
COSA Checklist_May2025.docx
Date
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.
In conducting an adequacy test, I attempt to provide a thorough, conscientious
engineering analysis of the system in accordance with ADEC & MOA guidelines and
regulations. The reported results describe the performance of the system under the
conditions encountered at the time of the test, and separation distances measured to
readily identifiable features. The operational life of all wells and septic systems depend
on the local soil condition, ground water levels that may fluctuate during the years, and
the water usage of the people served by the system. These conditions are outside the
control of the evaluator of this system. All systems eventually fail, and satisfactory test
results do not guarantee future performance if the system, nor do they guarantee that
there are no hidden defects of encroachments. Therefore, we cannot provide any
warranty of future performance, nor can we estimate the remaining life of the system.
The content of this report is for the sole benefit of the owner listed above.
AsBuilt
11/3/25
Feet
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