HomeMy WebLinkAboutSOUTHFORK NORTH BLK 4 LT 7Onsite File
Southfork North
Block 4
Lot 7
PID# 078-141-21
MOA site visit on 3/23/22: No indication that
systems were unstalled under OSP181005.
N, ""'Y MUNICIPALITY OF ANCHORAGE
/ \ On-Site Water&Wastewater Program ��•11, `n r .:5�;
PO Box 196650 4700 Elmore Road
Anchorage,Alaska 99519-6650 Phone:(907)343-7904 Fax:(907)343-7997 -7
httpa/www.muni.org/onsite
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4'YCH0R"40
On-Site Water & Wastewater System Permit
Permit Number: OSP181005 Effective Date: 1/25/2018
Work Type: WellSeptic Initial Expiration Date: 1/17/2019
Tax Code Number: 07814121000
Site Legal Address: SOUTHFORK NORTH BLK 4 LT 7 G:0959
Site Mailing Address: 2110 NORTH RIVER CIR, Eagle River
Owner: TROY DAVIS HOMES INC Lot Size in Sq Ft: 53084
Design Engineer: FORGE ENGINEERING Total Bedrooms: 4
This permit is for the construction of:
El Disposal Field RI 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. 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: t/ Dita ) 6) Date: I . •
Issued By: /�Q,- �a, 4,,,�,_ Date: a.5
EPtikilS
MUNICIPALITY OF ANCHORAGE
Irl4,i
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. 078-141-21
Property owner(s) Troy Davis Homes Day phone 310-2501
Mailing address 1689 S. Knik Goose Bay Road #400 Wasilla, AK 99654
Site address NHN North River Drive, Eagle River, AK
Legal description (Sub'd., Block & Lot) Southfork North, BIk 4 Lt 7
Legal description (Township, Range & Section)
Lot Size 53,084 Sq. Ft. Number of Bedrooms 4
APPLICATION IS FOR: APPLICATION IS AN: TYPE OF DWELLING:
(®all that apply)
Absorption Field 0 Initial ❑ Single Family (SF) ❑
(w/wo ADU)
Septic Tank 0 Upgrade ❑ Duplex (D) ❑
Holding Tank 0 Renewal ❑ Multiple Dwellings ❑
Privy 0 (SF and/or D)
Private Well 0
Water Storage
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.
kms" jt ' U.
(Signature of property owner or authorized agent)
Permit/Rush Fees: lqq, '' Waiver Fees:
Date of Payment: 1 / 17/13 Date of Payment:
Receipt Number: O/90t b Receipt Number:
Permit No. USPN 1 OO5 Waiver No.
Permit App_9-1-12.doc
PO BOX 240773
ANCHORAGE, AK 99524
522-7773 677-7766 (FAX)
January 22, 2018
Municipality of Anchorage
Development Services Dept- On-Site Water & Wastewater Program
4700 Elmore Rd
Anchorage, AK 99507
Subject: Southfork North Sub, Block 4 Lot 7
Septic system design and permit application
Dear On-Site Services Engineer:
The owner of the above lot intends to build a 4-bedroom home on the property, so we are
submitting this permit application for the construction of a new well and septic system. The
attached site plan identifies the location of the home as well as the proposed well, septic location
and alternate site. No conflicts exist between this proposed system and any wells, whether on this
lot or adjacent lots. Contours are shown on the site plan showing the grade and direction of flow.
The drainage pattern in general will not be changed by the construction.
The test holes placed on the lot indicate clay with cobbles down to around 10’, with silty sand with
gravel (SM) below that. No bedrock was found down to 14’, although groundwater was monitored
up at 3’ below grade. The upper layer of clay was impermeable, but the sandy layer below that
was determined visually to be pervious. Due to safety concerns of spending any time in a hole that
deep, I did not have my inspector perform a perk test. Instead, I had a sample sent to the lab for
analysis to back up that my visual rating. The lab results are attached (although the lab labeled the
results Test Hole 3, they came from Test Hole 1). The soils were classified as SM with fines around
22%. I am confident in my professional judgment that the soils will perk under 90 min/in, although
that conservative rate was what was used for this design.
The test holes that were dug on the lot were dug in the area that we discovered later to be labeled
on the plat as unavailable for a septic system. The soils and water levels appeared to be very
consistent in the property. We are proposing to dig a test hole at the time of construction to
demonstrate similar soil conditions and groundwater levels.
A Category III Advantex system will be placed on this lot. An application rate of 1.0 gpd/sf was
used in the design of the absorption system. We are proposing to place a new 1 500-gallon
Advantex tank with one AX-20 pod and two shallow absorption trenches 5’ wide x 60’ long x 0.5’
effective depth. The elevation of the distribution line will be 1.5 ’ above the surface with a total
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP181005, Deb Wockenfuss, 01/25/18
depth of 1’ above grade. This will allow for a 2’ separation from the seasonal high groundwater
level, appropriate for a Category III system. Soil will be mounded 2’ above the trench with
insulation. In order to convey the effluent from the bottom of the trench to the permeable layer,
the organics and clay will be dug down to the interface with the permeable sand and Type II gravel
or MOA-approved filter sand will be brought in and compacted per municipal guidelines. There
will be a minimum of 2’ of filter sand at the top, and 2’ of native receiving soils at the bottom that
are permeable.
The ground surface on the lot slopes moderately in the upper portion of the property, but then
drops off somewhat steeply toward the creek to the south. The new septic system will be placed in
the flatter area up top, and will be more than 50’ away from any slopes greater than 25%. The new
trench will be constructed parallel to the slope as much as possible. It 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 10’ away.
If the system is constructed as designed, it will have no adverse impact:
• On the wells in the area or those to be constructed in the future.
• On existing septic systems in the area or those to be constructed in the future.
• On reserve space on any lots located in the area.
• On drainage patterns in the area. The current drainage pattern will be maintained.
Sincerely,
Benjamin Schiller, PE
1/22/18
1
8
8
0
.
01870.0
1
8
9
0
.
0
1860.0
1
8
4
0
.
01
8
3
0
.
0
1820.0FCO
10050 0
FEET
1"=50'
100' SEPTIC
SETBACK 4-BDRM HOMEPROPOSED WELL
1500-GAL
ADVANTEX TANK
W/ AX20 POD
NOTE:
NO SLOPES >25% WITHIN 50' OR SURFACE WATER WITHIN 100' OF THE
PROPOSED SEPTIC SYSTEM
ALL WELLS ON SURROUNDING LOTS WITH IMPACTS TO THIS
PROPERTY ARE SHOWN. NO CONFLICTS WITH WELLS OR SEPTIC
SYSTEMS.
CO - CLEANOUT
2CO - DOUBLE CLEANOUT
FCO - FOUNDATION CLEANOUT
FS - FLOW SPLITTER VALVE
MH - MANHOLE
MT - MONITORING TUBE
SV - SEPTIC VENT
TH - TEST HOLE
LEGEND
MT
TH#1
SOUTHFORK NORTH BLOCK 4 LOT 7
N
O
R
T
H
RI
VER D
R
I
V
E
100' SEPTIC
SETBACK 10' DRAINAGE
EASEMENTS
15' CROSS COUNTRY SKI &
EQUESTRIAN TRAIL EASEMENT
25' CREEK MAINTENANCE
EASEMENT
TH#2
PROPOSED
TEST HOLE
MT
ALTERNATE
SITE
2 x ABSORPTION
TRENCHES 60LF x 5'
WIDE x 0.5' EFFECTIVE
DEPTH
SEPTIC SITE
(APPROX)
PROVIDE
INSULATION
UNDER
DRIVEWAY
Jan 25, 2018
MT
MT
PROPOSED
TEST HOLE
PUMP VAULT
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP181005, Deb Wockenfuss, 01/25/18
SOUTHFORK NORTH SUB, BLOCK 4 LOT 7
DESIGN FACTORS: SYSTEM REQUIREMENTS:
600 GPD PEAK FLOW
PERK RATE: 90 MIN/IN
APPLICATION RATE: 1 GPD/SF
5' WIDE SHALLOW TRENCH SYSTEM
1500-GAL ADVANTEX CAT III SYSTEM
W/ LIFT STATION
600 GPD / 1 GPD/SF / 5' WIDE / 1.0 REDUCTION FACTOR = 120 LF TRENCH
NOTES:
GRADE AREA OVER TRENCH TO DRAIN AWAY
MIN 6' SEPARATION FROM BEDROCK
MIN 2' SEPARATION FROM GROUNDWATER
MIN 100' SEPARATION FROM NEARBY WELLS
MIN 100' SEPARATION FROM SURFACE WATER OR STREAMS
TYPICAL DEEP TRENCH SECTION
(NO SCALE)
THEREFORE: CONSTRUCT TWO ABSORPTION TRENCHES 60' LONG x 5' WIDE x 0.5' EFFECTIVE
DEPTH. FLOW LINE ELEVATION IN TRENCHES TO BE 1.5' ABOVE ORIGINAL GROUND SURFACE.
TOTAL DEPTH TO BE 1.0' ABOVE EXISTING GROUND. EXCAVATE TO GRAVEL LAYER (@ 10') AND
REPLACE IMPERMEABLE SOILS WITH MOA-APPROVED MATERIAL TO BOTTOM OF SEWER ROCK.
FOLLOW MUNICIPAL CODE REGARDING PLACEMENT OF SAND. PROVIDE INSULATION WITH 2'
COVER OVER TRENCHES AND 4' COVER OVER SEPTIC TANK.
1" PERFORATED PVC (HOLES DOWN)
20 x 3
16 " HOLES @ 3' O.C.
DRAINFIELD ROCK
5'
6"
2'
6"
11'
MOA-APPROVED
FILTER SAND (MIN 2')
MIN 2' RECEIVING SOILS
Jan 25, 2018
3:1 MAX SLOPE
FILTER SAND OR TYPE II
CLASSIFIED FILL
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP181005, Deb Wockenfuss, 01/25/18
LEGAL DESCRIPTION:
PERFORMED FOR:
DATE:
PARCEL ID#:
Professional Engineers Stamp:
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
SITE PLAN
See 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)
SOUTHFORK NORTH B4 L7
11/22/17
J. Millette
Development Services Department
4700 Elmore Road Anchorage, AK 99519-6650
Municipality of Anchorage
DATE OF MONITORING:
WAS GROUND WATER ENCOUNTERED?
DEPTH OF WATER AFTER MONITORING:
IF YES @ WHAT DEPTH?
Yes
BLUE CLAY W/ COBBLES (ML)
11'
3'
12/01/17
2' OB
BROWN CLAYISH SAND W/ COBBLES (SM)
TROY DAVIS
078-141-21
SILTY SAND W/ GRAVEL (SM)
Jan 22, 2018
PERK TEST NOT PERFORMED DUE TO DEPTH OF PERKABLE MATERIAL. PERK RATE ESTIMATED
FROM LABORATORY ANALYSIS. SEE NARRATIVE FOR DETAILS.
*SAMPLE ANALYZED BY LAB
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP181005, Deb Wockenfuss, 01/25/18
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
SITE PLAN
See 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)
SOUTHFORK NORTH B4 L7
11/22/17
J. Millette
Development Services Department
4700 Elmore Road Anchorage, AK 99519-6650
Municipality of Anchorage
DATE OF MONITORING:
WAS GROUND WATER ENCOUNTERED?
DEPTH OF WATER AFTER MONITORING:
IF YES @ WHAT DEPTH?
YES
BLUE CLAY W/ COBBLES (ML)
1' OB
1.5 BROWN CLAYISH SAND W/ COBBLES (SM)
TROY DAVIS
078-141-21
9'
3'
12/01/17
Professional Engineers Stamp:
Jan 22, 2018
SILTY SAND W/ GRAVEL (SM)
PERK TEST NOT PERFORMED DUE TO DEPTH OF PERKABLE MATERIAL. PERK RATE ESTIMATED
FROM LABORATORY ANALYSIS. SEE NARRATIVE FOR DETAILS.
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP181005, Deb Wockenfuss, 01/25/18
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP181005, Deb Wockenfuss, 01/25/18
ADVANCED WASTEWATER TREATMENT SYSTEM
MAINTENANCE AND REPAIR AGREEMENT
BETWEEN MUNICIPALITY OF ANCHORAGE
AND TROY DAVIS HOMES
THIS MAINTENANCE AND REPAIR AGREEMENT made and entered into as of this
22nd Day of JANUARY of 20 18, by and between TROY DAVIS HOMES ,
herein the"OWNER,"and the Municipality of Anchorage, herein the
"MUNICIPALITY." In consideration of the mutual covenants contained herein,the
parties to this Maintenance and Repair Agreement agree as follows:
1. Advanced Wastewater Treatment Systems. Municipality grants permission to
Owner to utilize and operate an Advanced Wastewater Treatment System
(AWWTS), described as
ADVANTEX WASTE WATER TREATMENT SYSTEM
located at(legal description).
SOUTHFORK NORTH BLOCK 4 LOT 7
2. Definitions.
Alteration. Any change to the design or function of an AWWTS that
includes the installation or removal of any parts,components or pieces not
included in the original construction permit and design.
Certificate of On-Site Systems Approval(COSA). An approval by the
Municipality of existing water and wastewater disposal systems given at
the time of property sale and title transfer in accordance with Anchorage
Municipal Code (hereinafter, "AMC") 15.65. These approvals certify that
the systems are adequate for the homes that they support and meet the
codes that were in place at the time of system construction.
Damage. Any man-made or natural change in a system that would inhibit
the system from performing as designed.
Maintenance and Repair. The scheduled and as needed replacement of
existing parts, components and pieces of an AWWTS that were included
in the original design which would allow the AWWTS to continue to
perform as designed.
Permit. An On-Site Wastewater Disposal Permit as required by AMC
15.65 to construct and operate an AWWTS.
3. Term. The term of this Maintenance and Repair Agreement shall begin on the
date of approval by the Municipality to operate the installed system or issuance of a
COSA, and shall continue while the AWWTS is in use or is operational or until the
property is sold or title is transferred by the owner and a new COSA is issued to the
new owner or transferee of the property.
4. Alterations, Installation and Removal of Additional Equipment. Prior to
performing any alterations to an AWWTS,the owner agrees to obtain an On-site
Wastewater Disposal Permit from the Municipality in accordance with AMC 15.65.
5. Maintenance and Repairs.
A. Throughout the term of this Maintenance and Repair Agreement, the Owner shall
maintain their AWWTS in a satisfactory condition capable of producing treated
septic effluent in accordance with the equipment's approval for operation in the
Municipality. The owner shall enter into a service agreement with an AWWTS
service and maintenance provider approved by the municipality and the
manufacturer of the AWWTS for the entire term of the AWWTS. In addition, it
shall be the responsibility of the Owner during the term of this Maintenance and
Repair Agreement, and any renewals thereof,at the owner's sole expense,to pay
for any and all: (1) repair(s), (2) maintenance, (3) adjustment(s), (4)replacement
costs, and(5) inspection costs.
B. Owner agrees to comply with all applicable ordinance, laws, regulations, rules
and orders for the AWWTS.
C. Upon request by the Municipality,the owner agrees to provide the Municipality a
written schedule of routine maintenance and repairs which have been performed
on the system. When a record of maintenance is documented and maintained by
the system vendor, the owner agrees to allow the Municipality access to this
information.
D. Owner acknowledges that the fine for failing to maintain and repair an AWWTS
may be assessed in accordance with AMC 14.60 for improper discharge.
E. Owner agrees that only maintenance and repair personnel approved by the
Municipality will inspect and make any necessary maintenance, repairs or
permitted alterations to the system.
F. Owner agrees to grant the Municipality reasonable access to test and inspect the
AWWTS upon 24 hours written notice.
G. Owner agrees that any sale or transfer of title of the property will not occur
without a new Certificate of On-Site Systems Approval.
H. Owner agrees that the AWWTS installation and maintenance requirements as
provided by the AWWTS vendor/installer and approved by the Municipality are
the governing guidelines for the construction, maintenance and repair of the
Owner's AWWTS.
6. Nonwaiver. The failure of either party at any time to enforce a provision of this
Maintenance and Repair Agreement shall in no way constitute a waiver of the
provisions, nor in any way affect the validity of the Maintenance and Repair
Agreement or any part hereof,or the right of such party thereafter to enforce each and
every provision hereof.
7. Amendment.
A. This Maintenance and Repair Agreement shall only be amended, modified or
changed by a writing, executed by authorized representatives of the parties, with
the same formality that this Maintenance and Repair Agreement was executed
with, and such writing shall be attached to this Maintenance and Repair
Agreement as an amendment.
B. For the purposes of any amendment modification or change to the terms and
conditions of this agreement, the only authorized representatives of the parties
are:
a. Owner: TROY DAVIS HOMES
b. Municipality: Director, Community Development or designated authority
C. Any attempt to amend, modify, or change this contract by either an unauthorized
representative or unauthorized means shall be void.
8. Jurisdiction: Choice of Law. Any civil action arising from this Maintenance
and Repair Agreement shall be brought in the Superior Court for the Third Judicial
District of the State of Alaska at Anchorage. The laws of the State of Alaska shall
govern the rights and obligations of the parties under this Maintenance and Repair
Agreement.
9. Severability. Any provisions of this Maintenance and Repair Agreement decreed
invalid by a court of competent jurisdiction shall not invalidate the remaining
provisions of the Maintenance and Repair Agreement.
OWNER:
By: c (signature) Date: J-acQ-,QUI R
6,C (print name)
STATE OF ALASKA )
) ss.
THIRD JUDICIAL DISTRICT )
The foregoing instrument was acknowledged before me thisA day of`)( -nc,0r)2 ,
201a, by {- Q 9E1Pz-4\-c' 4 A ) • v
NOTARY PUBLIC FOR ALASKA
My Commission expires: /1c9(p101(9/
MUNICIPALITY:
By: (signature) Date: IA
tb r,kPn c:u 5 ti (print name) Title:
DZuiucipality of Anchorage a�
1
A P.O. Box 196650 • Anchomgc, Alaska 0%. .6650 • Tcicphone (997) 8t3 -f301 • 1'ax (997) 3�.4.8,(N) -�
47011 Bmgna• Stmct • Anchomge, Ala0at 99507
em5v.mcml.org
Mayor Mark Begich Buil(lina Safety Division
19 Jun 06
Grant Tibbetts
19743 Samalga Circle
Eagle River, AK 99577
Subject: Expired On -Site Water and/or Wastewater Permit
Permit Number: SWO50205
Legal Description: Southfork North BLock 4 Lot 7
Dear Mr. Tibbetts:
An On -Site Water/Wastewater Permit, number SWO50205 issued by this office for a single-family
system, will expire on 01 Jul 06. Permits are valid for 365 calendar days from date of issue.
If this was a well permit and the well has been drilled, a well log must be sent to this office for
documentation of the installation and to close the permit.
If this permit was for a wastewater disposal system, an original as -built inspection report must be
sent to this office for review, approval and documentation. This as -built inspection report must be
signed by the licensed Professional Engineer who inspected the installation of the system. As -built
inspection reports are required to be submitted within 30 days of the completion of the system.
If no system was installed under this permit, and you are still planning to install a well or wastewater
disposal system, a new permit must be obtained from this office. A one-time renewal fee for a
second year may be issued for a $115.00 if the renewal application is received on or before the
expiration date of the original permit. When applying for a new permit, the fees are $460.00 for a
wastewater permit and $175.00 for a well permit.
If you have any questions, please call this office at 343-7904.
Sincerely,
Z%W_ V-rj /Z:
Daniel J. Roth
Program Manager
On -Site Water and Wastewater Program
Enc: Copy of permit
Community, Security, Prosperity
MUNICIPALITY OF ANCHORAGE
Development Services Department
On -Site Water & Wastewater Program
4700 South Bragaw Street
P.O. Box 196650, Anchorage, AK 99519-6650
(907) 343.7904
ON-SITE WASTEWATER DISPOSAL SYSTEM / WATER SUPPLY PERMIT
Initial
Date Issued: Jul 01, 2005
Expiration Date: Jul 01, 2006
Permit Number: SWO50205 Parcel ID: 078-141-21
Legal Description: SOUTHFORK NORTH SUBDIVISION BLOCK 4 LOT 7
Design Engineer: 0838 North Rim Engineering Site Address: NHN SOUTH RIVER CIRCLE
Owner Name• "'� Lot Size: 53084 SQ. FT.
Owner Address: E Total Bedrooms: 3 Permit Bedrooms: 3
EAGLE RIVE Y/7-
C—ImNt -Tibn hIL
Iq-g143 s"i1t wle- 6 E2
' �jg5a d
This permit is for the construction of:
❑✓ Disposal Field 0 Septic Tank ❑ Holding Tank ❑ Privy Q Private Well ❑ Water Storage
All construction must 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 engineer must notify DSD at least 2 hours prior to each Inspection. Provide notification by catling
(907) 343-7904 ( 24 hours ). ( Not required for a Water Supply Permit only ).
4. From October 15 to April 15, a subsurface soil absorption system under construction during freezing weather
must be either: A. Open and closed on the same day.
B. Covered, sealed, and heated to prevent freezing.
5. The following special provisions.
-THE UPPER SIX INCHES OF THE TANK AND THE ABSORBTION SYSTEM MUST CONSIST OF TOP SOIL AND
THE MUST BE VEGETATED SUFFICIENTLY TO PREVENT EROSION.
711110r- ST!'✓i &-� W;L{- Po A wit Ani/VS,*S o4 Seil 7'o RLvewicI Soil /-°y!. 2'i* AnJh7yS.s
S4owS SOi Lf TO Bpi- AOOVE 60^141,;j AJ Rp V44csd SySTE,- 1✓,LL NC`LO 7a ?it /N1 f¢Ilta�
Received By:
Issued B 7 Date: 71k to
Municipality of Anchorage
Development Services Department
Building Safety Division
On -Site Water and Wastewater Program
4700 South Bragaw St.
P.O. Box 196650 Anchorage, AK 99519-6650
www.ci.anchorage.ak.us
(907) 343-7904
ON-SITE SEWER/WELL PERMIT APPLICATION
FOR A SINGLE FAMILY DWELLING
• b4
te; 'fire
l e
Parcell.D. A -79/q/- ,7/ Permit Number SW
Property
Mailing
phone 1594 --/3 S/
Code
Site address efVer ad'd-P Zip Code V5`7';;'
Legal description (Lot, Block & Sub'd.) A(or> 4'L 0 K t4 1-07-
%
Legal description (Section, Township & Range)
Lot Size 7, y' Acre q.Ft. Number of Bedrooms
THIS APPLICATION IS FOR:
3
Sewer Only ❑ Well Only ❑
Sewer and Well F;Z/ Water Storage ❑
Sewer Upgrade ❑
THIS PROPERTY CONTAINS:
Hot Tub ❑ Jacuzzi ❑
Swimming Pool ❑ Water Softening Unit ❑
Therapy Pool ❑
certify that the above information is correct. I further certify that this application is being made for a
Single Family Dwelling and is in accordance with applicable Municipal Codes.
(Signature of property
PE
agent)
Permit/Rush Fees: qQD+ rr=y Waiver Fees:
Date of Payment: 1p ! I lar)r-l�s Date of Payment:
Receipt Number: ICQ", J'Rn Receipt Number:
(Rev. 09/04)
CTHW_
F��1 rZNEERING
NorthRim Engineering
17237 Bear Paw Circle
Eagle River, AK 99577
907.694.7028
June 30, 2005
Joe Goodall
MOA On -Site Water & Wastewater Program
4700 Bragaw St
Anchorage, AK 99519
RE: Septic System Redesign & Well Location; Southfork North S/D, Block 4, Lot 7
Dear Mr. Goodall:
After discussions with you and the contractor, Southfork Construction, I believe we have
a redesign that will enhance slope integrity and the 35 foot separation to the cut -slope.
We will construct a 55 foot long rock gabion wall to stabilize the slope at the 35 -foot
distance. The gabion retaining wall has been used successfully in this region by private
contractors and State DOT&PF. The fill height at the 35 -foot distance will be 5 -feet in
height. This height fill has been proven to be stabilized by a gabion retaining wall. The
minimum 35 -foot distance will be to the alternate site. The constructed absorption trench
site will be @ 50 -foot separation.
I believe that this will lead to a successful system.
Sincerely,
Steve E� !/
Design Enclosures
Y
w
FEN _INEERIt r N� GL—
Northitim Engineering
17237 Bear Paw Circle
Eagle River, AK 99577
907.694.7028
June 13, 2005
MOA On -Site Water & Wastewater Program
4700 Bragaw St
Anchorage, AK 99519
RE: Septic System Design & Well Location; Southfork North S/D, Block 4, Lot 7
A series of test excavations was conducted by Southfork Construction to determine if soils
existed for an on-site septic system. Soil tests revealed two sites near the edge of a bluff
that drops off at about 30% grade. The soil is a silty gravel with a low groundwater
monitor.
This site could be utilized if care was taken to maintain the 50 foot separation from slopes
greater than 25% grade. Measurements will be made from both the absorption trench and
alternate site; the slope will be graded if necessary to ensure adequate separation from
slopes steeper than 25%.
This is a new septic system. Many of the nearby lots are undeveloped. This site should not
negatively impact any of the other area lots. The drainage slopes from front of lot towards
back of lot to the Southfork of Eagle River. There is also a drainage easement across the
lot. Adequate separation to the stream and surface water exists to the proposed site.
Please review the wastewater system design for the single family home. I have included
design plans & specs, design guidelines, & soil tests. If there is need for additional
information or clarification please give me a call.
Sincerely
Steve Eng PE, PH
Design Enclosures
I�N�INEERIN�� SOUTHFORK NORTH S/D, Block 4, Lot 7
SPECIFICATIONS & DESIGN GUIDELINES
Wastewater System Sizing: This is a future single family home projected at 3 bedrooms.
This requires a 1000 gallon septic tank. This lot is about 1.5 acres in size, as are
neighboring lots. Most of the neighborhood lots are developed. No adverse impacts are
expected from developing this lot. The proposed water well is located on the drawing as
are the neighboring wastewater systems & water wells. The lot slopes from front to back,
toward the Southfork of Eagle River. No conflicts to any neighbor lots is anticipated. Two
soil tests were conducted and demonstrated similar soil; a sandy soil. One test hole had a
superior percolation rate and this site was used for the trench location. An application rate
of 1.2 GPD/FT2 with 0.5 reduction factor for utilizing a 5' wide trench was utilized.
Specification Requirements: All components and work must comply with the
Municipality of Anchorage Specifications (AMC) & State of Alaska Drinking Water
Regulations and Wastewater Regulations.
• Two compartment, 1000 gallon septic tank.
• Watertight couplings on inlet & outlet.
• 5 foot minimum between the tank and bed. 10 foot to property lines.
• 3 feet of cover or insulation is required for trench; an equivalent of I" insulation for each foot
soil cover.
• Tank & solid pipe must be set on well compacted, stable soil.
• 4 inch diameter cicanouts with airtight caps are required I to 4 feet from foundation wall, prior
to any 90 degree bend in 4 inch line, in each tank compartment, and two adjacent opposing
cleanouts between the tank and the absorption field, not more than 10 feet from the tank
positioned to provide cleanout access towards the tank and towards the absorption field.
• All cleanouts must extend to at least ground level.
• In solid pipe runs, ASTM D-3034 may be used in lieu of cast iron.
• Trench to be placed level, minimum of 4 feet to groundwater, 6 feet to bedrock from drain -
rock.
• Drain rock to be'/: inch to 2 %, inch screened. Drain rock to be distributed uniformly
throughout the trench.
• Perforated pipe to be installed level with perforations down.
• Silt barrier (filter fabric) to be installed above the drain rock.
• Smeared trench sides must be raked or scarified before drain rock placement.
• Backfill over drain rock must not be less than 36".
• The finish grade must be mounded to promote drainage over the trench.
• Insulation must be placed over any pipe installed under driveways or parking areas.
• Approved pipe materials include cast iron, PVC ASTM D3034, PVC ASTM F789, ABS
ASTM D2661,
• Sewer Service Line is minimum 2% slope.
• Septic Tank to be pumped every two years or when required.
0 Insulation board to be extruded direct burial polystyrene (Dow Styrofoam HI or equal)
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BLOCK 4, LOT 7
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SUBDIVISION LAYOUT
PIEEM
6/13/05 2/4
1000 Gallon Sept
Absorption Trenc
T.H. 2 1
Alternate Site
Extend
Slope Grade
To Mainta n
Slope < 25%
T
CHECK SEPARATION \
PRIOR TO DRILLING WELL
3
qt �
R10
3 Bd House _
Tank
o le C.O.'s boy
T.. I
tak 100' Septic S tba<
7 -op of Blupf
/ Breaks To Steep
T7 MING WALLSeptic System Construction
1 0 Does Not Preclude Adjoining
Lots From Sanitation
n lopes southwest. / Improvements.
/ ESIGN NOTES:
Total Depth of Trench is 7.0.
2. Sewer Service Line minimum 2% slope.
3. Trench is Minimum 10' from Lot Line.
/ 4. Lots Served by Private Water Wells
1' = 40'
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NORTHRIM-��
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17237 Bear Pew Cfrele %
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S❑ILS LOG - PERCOLATION TEST
�THRIM Date Performed: 4/27/05
91NEERING
Performed For: Al Pace
Legal Description: SOUTHFORK NORTH Block 4, Lot 7
1 -
2 -
3 -
4 -
5 -
6 -
7 -
8 -
9 -
10 -
11 -
12 -
13 -
14 -
15 -
16 -
17 -
18 -
19 -
20 -
21 -
Comme
Perfo
Perfc
ON THIS DATE. DATE+ 5/26/05
DEPTH
(FEET)
nrntion: Too of Ridoe
NOR THRI � ��.; -►:.
t9w,
TESTH❑LE LOG
T, H. 2
ENGINEERINGG fY�
17237 Bear Pow Circle �, •, a,
L ❑ T
Eapb R/w, Alaska 995774t a- 14
907.694.7028 •. =
GEOTECHNICAL
5/26/05 12 of 2
r SOILS LOG - PERCOLATI❑N TEST
THRIM Date Performed: 4/27/05
L71r_r_11
Performed For: Al Pace
Legal Description: S❑UTHFORK NORTH Block 4, Lot 7
1 -
2 -
3 -
4 -
5 -
6 -
7 -
8 -
9 -
10 -
11 -
12 -
13 -
14 -
15 -
16 -
17 -
18 -
19 -
20 -
21 -
DEPTH
(FEET)
Location: Top of Ridge
GM
Silty Gravel
5/15/05 NoNtorr,
Groundwater? No
Depth
Water Depth
After Mnnitnrinn.12'
Dater 5/15&25/05
#
Date
Gross Time
Net Time
Depth
Net Drop
1
5/25
0
--
7.25'
--
2
5/25
4
4 min
7.5'
0.25'
3
5/25
6
--
7.5'
--
4
5/25
10
4 min
7.75'
0.25'
5
5/25
1 12
--
7.5'
--
6
5/25
1 16
4 min
7.75'
0.25'
Percolation Rate
Test Run Between
Perc Hole
Comments: rresoarcea- lest r1Ule IWur- nl fl JlV J CULL♦ uc �c wu cu
Performed By NnrthRim Eng. x CERTIFY THAT THIS TEST WAS
Performed in Accordance with All State/Municipal Guidelines in Effect
ON THIS DATE, DATE: 5/26/05
:tEork%s
NORTHRIM s* ''�
TESTHDLE LOG
T. H. 1
.49
ENGINEERING ' }
17237 B.or Pow C/rol ,,,,, p �
cop:. RA.r, A103*94.70 99377 , ...a- ..� =
LOT 7
907.69+.70?8
GEOTECHNICAL
5/26/05 11 of 2