HomeMy WebLinkAboutSPRUCE TERRACES LT 24
SPRUCE TERRACE
Block
Lot 24
#020-044-29
Permit Number:OSP251374
Tax Code Number:02004429000
Work Type:Septic Initial
Effective Date:
Design Engineer:
Site Legal Address:SPRUCE TERRACES LT 24 G:3239
Owner:PANNONE ENGINEERING SERVICES
Site Mailing Address:6825 AVALANCHE CIR, Anchorage
Lot Size in Sq Ft:54500
Total Bedrooms:6
This permit is for the construction of:
Disposal Field Septic Tank Holding Tank Privy
Non-Public
Water 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. Coodinate with On-Site staff regarding preferred method.
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
10/15/2026
PANNONE ENGINEERING SERVICES
Expiration Date:
þ þ ¨¨¨¨
Issued To:
Issued By:
Date:
Date:
10/17/2025
10/17/2025
PANNONE ENGINEERING SERVICES
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
Pannone Engineering Services LLC
Steven R. Pannone, Principal
Registered Professional Engineer
E-mail: steve@panengak.com
16 October, 2025
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 24
6825 Avalanche Circle
Septic System Permit Request
This is a design narrative for a permit to install an initial septic system on the subject property. The installation will
serve a proposed six (6) bedroom house. This lot and surrounding lots are served by a community well. Currently there
are no wells within 200ft of the proposed installation.
1. Soils: A test hole was performed on this lot by Pannone Engineering Services, LLC on 10/15/2020 (TH-24).
Groundwater was not observed during the excavation of this test hole, and bedrock was not encountered. No
groundwater was observed in the test hole monitor tube after 7 -days on 10/27/2020. Twenty-seven (27) test holes
were performed within this subdivision by PES for the approval of this subdivision. Bedrock, impermeable soils, or
ground water, were not encountered in this subdivision within the test holes performed. Test holes in the area
were all found to have a percolation rate of less than five minutes per inch (MPI ). See soils logs attached, or soils
logs as documented under the subdivision, S12599/S12420.
Based on the results of the surrounding percolation tests , the percolation test and test hole conducted on the
subject lot and known soil types in the area , per 15.65.210.C; an application rate of 1.2 gallons/day/square foot
was used for the design of a conventional wastewater system in the location as depicted in the attached site plan.
PES will perform a test hole at the time of construction to verify the existing soil strata and applicability of the
proposed design. Subject test hole information will be provided at the time of record drawings.
2. Soil Absorption System Design: See design package.
3. Surface Water: There is no surface water within 100 feet of the proposed septic tank and drain field.
Topography: See attached site plan for area topography. There are slopes exceeding 25% within 25-feet and 50-feet
of the proposed drain field. The proposed drain field design conforms to the steep slope provisions of AMC
15.65.210.B.4.a. Exception.
The soils in this area are Hydrologic Soils Group A; which contains organics underlain by poorly graded sands and
gravels with silty sandy gravels below (SP) (GP) & (SM) as shown on the subject and surrounding lot soils logs.
Due to the nature of and drainage capacity of the soils found in the area (HSG A), the designed infiltration line of
46% for septic system installation on steep slopes should be used instead of the assumed/worst case soil
classification infiltration line of 25%. The slopes and soil types enable installation of the proposed system without
the system effluent daylighting at any distance of concern. Please see sheet 2 of the attached design package for
slope details.
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP251374, Isatou Njie, 10/17/25
Mailing: P.O.Box 1807, Palmer, AK 99645
Telephone: (907) 745-8200 FAX: (907) 745-8201
4. 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, please contact me at (907) 745-8200.
Sincerely,
SRP
Steven R. Pannone, P.E. F. ASCE
Owner | Principal Engineer
16 October 2025
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Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP251374, Isatou Njie, 10/17/25
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NOTE:
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1 SCALE: 1"=10'
DRAIN FIELD SLOPE SECTION
2 SCALE: 1"=10'
DRAIN FIELD SLOPE SECTION
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP251374, Isatou Njie, 10/17/25
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Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP251374, Isatou Njie, 10/17/25