HomeMy WebLinkAboutSHANGRI-LA ESTATES-EAST PH 2 BLK 5 LT 1SHANGRI-LA
ESTATES - EAST PH 2
Lot 1
MUNICIPALITY OF ANCHORAGE
On -Site Water & Wastewater Programy5r'
PO Box 196650 4700 Elmore Road
Anchorage, Alaska 99519-6650 Phone: (907) 343-7904 Fax: (907) 343-7997 f
http://www.muni.org/onsite
On -Site Water & Wastewater System Permit
Permit Number: OSP251070 Effective Date: 4/1/2025
Work Type: WellSeptic Initial Expiration Date: 4/1/2026
Tax Code Number: 02004384000
Site Legal Address: SHANGRI-LA ESTATES -EAST PH 2 BLK 5 LT 1 G:3239
Site Mailing Address:
Owner: GRIGSBY LIVING TRUST THE Lot Size in Sq Ft: 81345
Design Engineer: FORGE ENGINEERING Total Bedrooms: 4
This permit is for the construction of:
Q Disposal Field Q Septic Tank ❑ Holding Tank ❑ Privy P 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 field, in the location shown on the site plan, to
confirm minimum separation to impermeable soil and seasonal high groundwater, as well as percolation rate.
Construction may proceed at your own risk prior to 7-day groundwater monitoring. If results require a design
change, construction shall stop pending approval of a change order. Please submit results with the inspection
report (or change order, if required).
Received By: 'll r`i Date:
Issued By: Date: / 2 _
ON -SITE SEPTIC/WELL PERMIT APPLICATION
Parcel I.D. 020-043-84
Property owner(s) K&M Property LLC Day phone
Mailing address 16050 Mountain Air Dr, Anchorage, AK 99516
Site address NHN Mountain Air Drive
Legal description Shangri-La Estates East Ph2, Block 5 Lot 1
Number of Bedrooms
Engineering Firm Forge Engineering
Building Permit Number f V
Not Applicable Fg-1
APPLICATION IS FOR:
APPLICATION IS AN:
(N all that apply)
Absorption Field El
Initial
Septic Tank 0
Upgrade ❑
Holding Tank ❑
Renewal ❑
Privy 0
Well R
THIS APPLICATION INCLUDES A WAIVER REQUEST FOR:
Permit/Rush Fees: s3z_o
Date of Payment: � -z S-Permit No. 0,5PZ_5_/070/
Waiver Fees:
Date of Payment:
Waiver No.
Distance:
March 21, 2025
MOA Development Services, On-Site Water & Wastewater Program
4700 Elmore Rd
Anchorage, AK 99507
Subject: Shangri-La Est East Ph2 B5 L1 - NHN Mountain Air Dr
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 fairly uniformly to the north at between 12-15%. There are
no slopes greater than 25% within 50 feet downslope of either the primary or alternate site.
Contours are shown on the site plan showing the grade and direction of flow. Stormwater drainage
will not impact this septic system. The new trenches will be constructed parallel to the slope as
much as possible. We are using the subdivision test holes for the design and permitting, while
specifying a test hole that must be dug prior to installation to confirm the soils and groundwater
levels.
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 logs, 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
OSP251070, Curtis Townsend, 04/01/25
0102
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ALTERNATE SITE
Benjamin Schiller
CE 12592REGISTEREDPROFESSION A L E N GINEER
1"=50'
60' LONG x 5' WIDE, 0.5' EFFECTIVE
DEPTH ABSORPTION TRENCHES
MT'S WITHIN 1' OF TRENCH ENDS
1500-GAL STEP TANK
MIN 5' FROM DECK POSTS
CO - CLEANOUT
2CO - DOUBLE CLEANOUT
FCO - FOUNDATION CLEANOUT
FS - FLOW SPLITTER VALVE
MH - MANHOLE
MT - MONITORING TUBE
SV - SEPTIC VENT
TH - TEST HOLE
LEGEND
TRIAD TH-1
SHANGRI-LA ESTATES EAST PH 2, BLOCK 5 LOT 1
FEET
0 50 100
FCO
4-B DRM
HOM
E
SEPTIC PLAN
8/22/23
M
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20
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1
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33
'
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UNDE VELOP ED
PROPERTY
ACROSS ROAD
UNDEVELOPED
UN
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V
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L
O
P
E
D
PROPOSED WELL
PROPOSED TEST HOLE & PERK
TEST- PERFORM PRIOR TO
CONSTRUCTION
TRIAD TH-2
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP251070, Curtis Townsend, 04/01/25
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
DESIGN FACTORS:SYSTEM REQUIREMENTS:
600 GPD PEAK FLOW
PERK RATE: <1 MIN/IN
APPLICATION RATE: 1.0 GPD/SF (w/ SAND
FILTER)
5-WIDE TRENCH SYSTEM
1500-GAL STEP TANK
BOTTOM OF TRENCH: AT GRADE
FLOW LINE ELEVATION: 0.5' ABOVE GRADE
600 GPD / 1.0 GPD/SF / 5' WIDE * 1.0 RED FACTOR [6" DEEP] = 120 LF TRENCH REQUIRED
8/22/23
SHANGRI-LA ESTATES EAST PH 2, BLOCK 5 LOT 1
DRAINFIELD ROCK
5'
6" ADDITIONAL COVER FOR SETTLEMENT
2'-6"
6"
GEOTEXTILE FABRIC w/
INSULATION
2'
2' MOA FILTER SAND
1 1
4" PVC w/ 20 - 1
8"
ORIFICES EVENLY
SPACED @ 6' OC
3:1 SIDE SLOPES
STABILIZED AND
SEEDED
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP251070, Curtis Townsend, 04/01/25
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP251070, Curtis Townsend, 04/01/25