HomeMy WebLinkAboutHORIZONS LT 2IN: W-A 4 Ap Ll
Lot 2
051 - 031 - 66
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 Water & Wastewater System Permit
Permit Number: OSP251113
Work Type: WellSeptic Initial
Tax Code Number: 05103166000
Site Legal Address: HORIZONS LT 2 G:1557
Site Mailing Address:
Owner: MIDNIGHT SUN CONSTRUCTION LLC
Design Engineer: FORGE ENGINEERING
This permit is for the construction of:
Q Disposal Field Q Septic Tank ❑ Holding Tank ❑ Privy
Effective Date:
Expiration Date:
Lot Size in Sq Ft:
Total Bedrooms:
4/23/2025
4/23/2026
45157
Q 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 C
Issued By: U,
al
Date:
Date: �' 3 zo
ANCHORAGE
ON -SITE SEPTIC/WELL PERMIT APPLICATION
Parcel I.D. 051-031-66
Property owner(s) Midnight Sun Construction LLC Day phone
Mailing address PO Box 210994 Anchorage, AK 99521
Site address N H N Alderleaf Court
Legal description
Horizons Lot 2
Number of Bedrooms 4
Engineering Firm Forge engineering
Building Permit Number J2_ ?- - I q t 3 Not Applicable nN
APPLICATION IS FOR:
APPLICATION IS AN:
(N all that apply)
Absorption Field
RX
Initial
Septic Tank
I -XI
Upgrade El
Holding Tank
❑
Renewal El
Privy
❑
Well
r_X1
THIS APPLICATION INCLUDES A WAIVER REQUEST FOR:
Perm it/Rush Fees:A/ 31 -L Waiver Fees:
Date of Payment:
Permit No. 05P 25)// 3
Date of Payment:
Waiver No.
Phone- 907-343-7904
Distance:
April 22, 2025
MOA Development Services, On-Site Water & Wastewater Program
4700 Elmore Rd
Anchorage, AK 99507
Subject: Horizons L2 – NHN Alderleaf Ct
Septic system design
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 other well or septic
system, whether on this lot or adjacent lots.
The ground surface on the lot slopes very moderately from the east to the west, but large portions
are relatively flat. Contours are shown on the site plan showing the grade and direction of flow. At
the very west end of the lot the property drops approximately 5-7’ to the neighboring lot. This drop
is greater than 20’ away from the trenches, and the drop in surface height is less than 10’ below
the invert elevation of the horizontal drainpipe. Stormwater drainage will not impact this septic
system. The new trenches will be constructed parallel to the slope as much as possible.
Wells on this and adjacent lots are shown. The new system will be a minimum of 100’ from all
wells and surface water, and more than 5’ away from the septic tank. The alternate site is located
more than 6’ away. Please refer to the attached test hole log, plan and profile pages for the septic
design. If this design is followed, there will be no adverse impacts to adjacent properties.
Sincerely,
Benjamin Schiller, PE
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP251113, Curtis Townsend, 04/23/25
ALTERNATE SITE
AWWTS SYSTEM
24' LONG x 5' WIDE x 6"
EFFECTIVE DEPTH
w/ 2' SAND FILTER
Benjamin Schiller
CE 12592REGISTEREDPROFESSION A L E N GINEER
1"=50'
2x 60' LONG x 5' WIDE, 6"
EFFECTIVE DEPTH ABSORPTION
TRENCHES
PROVIDE 2' SAND FILTER
ENSURE >100' FROM NEW WELL
NEW 1,250 GAL
SEPTIC TANK
CO - CLEANOUT
2CO - DOUBLE CLEANOUT
FCO - FOUNDATION CLEANOUT
FS - FLOW SPLITTER VALVE
MH - MANHOLE
MT - MONITORING TUBE
SV - SEPTIC VENT
TH - TEST HOLE
LEGEND
HORIZONS, LOT 2
FEET
0 50 100
4-BDRM HOME
110
SEPTIC PLAN
8/22/23
50' BLM ROW PER PATENT
ALDERLEAF COURT
FCO
2CO
CO
CO
CO
CO
MT
MT
MT
MT
TH#1 FS
PROPOSED WELL
NO SEPTIC SYSTEMS
ARE WITHIN 100' OF
PROPERTY LINE
105
105
110100
UN
D
E
V
E
L
O
P
E
D
PU
B
L
I
C
W
A
T
E
R
PU
B
L
I
C
W
A
T
E
R
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP251113, Curtis Townsend, 04/23/25
HORIZONS, LOT 2
TYPICAL TRENCH SECTION
(NO SCALE)
NOTES:
1. GRADE AREA OVER TRENCH TO DRAIN AWAY
2. PROVIDE 3' OF COVER OVER TRENCHES AND 4' OVER SEPTIC TANK, OR 2'
WITH 2" OF INSULATION
3. CHECK GROUNDWATER AT TIME OF CONSTRUCTION. IF LEVEL IS HIGHER
THAN PREVIOUSLY OBSERVED, CALL ENGINEER IMMEDIATELY
Benjamin Schiller
CE 12592REGISTEREDPROFESSION A L E N GINEER
4" PERFORATED PVC (HOLES DOWN)
DRAINFIELD ROCK
4'
6"
DESIGN FACTORS:SYSTEM REQUIREMENTS:
600 GPD PEAK FLOW
PERK RATE: <1 MIN/IN
APPLICATION RATE: 1.0 GPD/SF
5-WIDE SHALLOW TRENCH SYSTEM
1,250 GAL SEPTIC TANK
BOTTOM OF TRENCH: 5.0' BELOW GRADE (12' MAX)
FLOW LINE ELEVATION: 4.5' BELOW GRADE
600 GPD / 1.0 GPD/SF / 5' WIDE * 1.0 RED FACTOR [0.5 DEEP] = 120 LF TRENCH REQUIRED
(120 LF SPECIFIED)
6"
4/21/25
PROVIDE ADDITIONAL FILL TO
ACCOUNT FOR SETTLEMENT
5'
GEOTEXTILE FABRIC
2' MOA-APPROVED FILTER SAND
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP251113, Curtis Townsend, 04/23/25
LEGAL DESCRIPTION:
PERFORMED FOR:
DATE: PARCEL ID#:
SOILS LOG AND PERCOLATION TEST
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
DEPTH
(feet)
TEST HOLE 1
DATE READING NET TIME
(minutes)
DEPTH to
WATER NET DROP
PERCOLATION RATE: (MIN/INCH)
(inches)(inches)
DATE OF MONITORING
DEPTH TO WATER AFTER MONITORING
<1
4/7/25 1
2
3
4
5
6GP (SILTY SANDY GRAVEL)
Professional Engineers Stamp:
Horizons L2
4/7/25 051-031-66
Midnight Sun Construction
159 8
16
2' OB
1
Benjamin Schiller
CE 12592REGISTEREDPROFESSION A L E N GINEER
PERC TEST LOCATION
TECHNICIAN: Jared Earls
165 8
16
none
4/14/25
COMMENTS:
SITE PLAN
6"
USCS SOIL CLASSIFICATION WAS VISUALLY DETERMINED
4/21/25
MOISTURE NOTED AT TIME OF DIGGING?none
159 8
16
159 8
16
159 8
16
159 8
16
159 8
16
165 8
16
165 8
16
165 8
16
165 8
16
165 8
16
6"
6"
6"
6"
6"
1
1
1
1
1
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP251113, Curtis Townsend, 04/23/25
