HomeMy WebLinkAboutSKY RIDGE LT 6Pannone Engineering Services LLC
Steven R. Pannone, Principal
Registered Professional Engineer
E-mail: steve@panengak.com
16 September, 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: Sky Ridge Lot 6
NHN Sky Ridge Drive
Well Permit Request
This is a design narrative for a permit to install a private well on this property. Currently the lot is undeveloped. This lot
and the surrounding lots are to be served by AWWU sewer services. Currently there are no sewer mains or private
septic systems within 100’ of the proposed well location.
1. Well Design.
The well will be located:
100’+ from any sewer main and or sewer system manhole.
100’+ from any on-site septic system.
25’+ from any private sewer lines and or clean outs.
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, PE, F. ASCE
Owner | Principal Engineer
16 September, 2025
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP251330, Isatou Njie, 09/18/25
LOT 25
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NEW SEPTIC
WATER LINE / WELL
RADIUS
ESMT/SETBACK
STREAM/DRAINAGE
WAY CENTERLINE
FLOW PATH
ABBREVIATIONS
TH TEST HOLE
(P) PROPOSED
(N) NEW
(E) EXISTING
CO CLEAN OUT NO.
DCO DOUBLE CLEANOUT
FC FOUNDATION CLEANOUT
FS FLOW SPLITTER
DV DIVERTER VALVE
MT MONITOR TUBE NO.
LS LIFT STATION
R.I. RIGID INSULATION
TYP TYPICAL
WELL NOTES:
1. FINAL WELL LOCATION TO MAINTAIN AT LEAST 25 FEET FROM THE ON PROPERTY SEWER SERVICE LINE AND
FOUNDATION CLEANOUT.
2. FINAL WELL LOCATION TO MAINTAIN AT LEAST 100 FEET FROM THE AWWU SEWER MAIN AND ANY SEWER
SYSTEM MANHOLE LOCATED ON SKY RIDGE DRIVE.
3. THE APPROXIMATE LOCATION OF THESE FEATURES IS SHOWN ON THIS DRAWING AS REPRESENTED BY THE
RECORD DRAWING FOR THE PROJECT. THE EXACT LOCATION OF THESE FEATURES MAY VARY AND PES
RECOMMENDS HAVING THEM PHYSICALLY LOCATED PRIOR TO DRILLING THE WELL.
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP251330, Isatou Njie, 09/18/25
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1. GENERAL NOTES:
1.1. ANY MODIFICATIONS TO THE ATTACHED PLANS NEED TO BE APPROVED BY PES AND THE OWNER OF THE PROPERTY.
1.2. PES SHALL BE NOTIFIED A MINIMUM OF 48 HOURS IN ADVANCE BEFORE CONSTRUCTION OF THE PROPOSED WASTEWATER TREATMENT
SYSTEM.
1.3. PES SHALL BE NOTIFIED A MINIMUM OF 24 HOURS IN ADVANCE TO PERFORM A MINIMUM OF FOLLOWING INSPECTIONS:
1.3.1. A PRE CONSTRUCTION MEETING IS REQUIRED BY STATE AND MUNICIPAL REGULATIONS BEFORE A ONSITE WASTEWATER
TREATMENT SYSTEM MAY BE INSTALLED.
1.3.2. TOP OF SEPTIC AND OR HOLDING TANK (TANK IS SET IN PLACE LEVEL WITH ALL PIPING ATTACHED (CLEANOUTS, MANHOLES, INLET
AND OUTLET PIPING).
1.3.3. BOTTOM OF EXCAVATION OF THE DRAIN FIELD/S.
1.3.4. AFTER PLACEMENT OF FILTER SAND (IF NEEDED).
1.3.5. AFTER INSTALLATION OF THE DRAIN ROCK WITH ALL ASSOCIATED PIPING IN PLACE INCLUDING DISTRIBUTION LINES CLEANOUTS
AND MONITOR TUBES PRIOR TO INSTALLATION OF FILTER FABRIC AND INSULATION (IF NEEDED).
1.3.6. FINAL GRADE INSPECTION. ENTIRE SYSTEM IS INSTALLED AND BACKFILLED.
1.4. THE ENGINEER (PES) HAS NO CONTRACTUAL RELATIONSHIP WITH THE CONTRACTOR (THE INSTALLER OF THE SYSTEM) AND, THEREFORE,
HAS NO AUTHORITY, CONTROL OR RESPONSIBILITY FOR THE CONTRACTOR'S EMPLOYEES, THE QUALITY OF WORK, THEIR COMPLIANCE
WITH THE DESIGN DRAWINGS/SPECIFICATIONS OR THEIR MEANS/METHODS OF CONSTRUCTION. AT APPROPRIATE INTERVALS, THE
ENGINEER WILL VISIT THE WORKSITE TO OBSERVE THE QUALITY OF THE CONSTRUCTION AND TO DETERMINE IN GENERAL IF THE
CONSTRUCTION IS PROCEEDING IN ACCORDANCE WITH THE DESIGN DRAWINGS/SPECIFICATIONS.THE ENGINEER WILL NOTIFY THE
OWNER IF DEFICIENCIES ARE OBSERVED; HOWEVER, THE FAILURE OF THE ENGINEER TO OBSERVE A DEFICIENCY WILL NOT RELIEVE THE
CONTRACTOR OF THE RESPONSIBILITY FOR CORRECTING ANY SUCH DEFICIENCY. THE ENGINEER WILL PREPARE RECORD DRAWINGS AND
SUBMIT THEM TO THE REGULATORY AGENCY HAVING JURISDICTION OVER THE WASTEWATER TREATMENT SYSTEM (ADEC OR MOA).
FINAL APPROVAL OF THE WORK AND CORRECTION OF ANY DEFICIENCIES IS BETWEEN THE OWNER, THE CONTRACTOR, AND THE
REGULATORY AGENCY HAVING JURISDICTION OVER THE WASTEWATER TREATMENT SYSTEM (ADEC OR MOA).
2. SCOPE AND SPECIFICATIONS:
2.1. ALL CONSTRUCTION SHALL BE AS SPECIFIED IN THE ATTACHED PLANS. CONSTRUCTION ACTIVITIES SHALL ALSO BE IN ACCORDANCE
WITH THE MOST CURRENT EDITION OF THE FOLLOWING CODES AND POLICIES AS APPLICABLE.
2.1.1. 18 AAC 72
2.1.2. AMC 15.65
2.1.3. AMC 15.55
2.1.4. MOA STANDARD SPECIFICATION FOR COMPONENTS PARTS AND MATERIALS.
2.1.5. ADEC ONSITE WASTEWATER SYSTEMS INSTALLATION MANUAL (OWSIM).
2.1.6. MUNICIPALITY OF ANCHORAGE STANDARD SPECIFICATIONS (MASS).
2.2. SCOPE OF WORK: INSTALL PRIVATE WELL IN ACCORDANCE WITH THE ATTACHED DESIGN AND SPECIFICATIONS.
2.3. GROUNDWATER WAS NOT ENCOUNTERED TO A DEPTH OF -- FEET BELOW EXISTING GRADE. IF AN APPARENT WATER TABLE IS
OBSERVED IN ANY OF THE EXCAVATIONS LESS THAN -- FEET BELOW EXISTING GRADE NOTIFY THE ENGINEER IMMEDIATELY.
2.4. STRUCTURES DEPICTED ON THE SITE PLAN ARE BASED UPON ONE OF THE FOLLOWING: CONCEPTUAL PLOT PLAN DEVELOPED BY OWNER;
A PLOT PLAN DEVELOPED BY RLS; OR A SURVEY AS-BUILT.
3. CONSTRUCTION SPECIFICATIONS:
3.1. ALL EXCAVATION DEPTHS ARE ADVISORY. THEY ARE TO BE VERIFIED AND MAY BE MODIFIED BY THE ENGINEER IF ACTUAL FIELD
CONDITIONS VARY FROM THOSE USED TO PREPARE THE DESIGN
3.2. EXCAVATE THE DRAIN FIELD. BOTTOM OF EXCAVATION SHALL BE LEVEL AND SCARIFIED. RECORD ELEVATIONS AT BEGINNING, MIDDLE
AND END OF TRENCH BOTTOM. CONSTRUCTION EQUIPMENT SHALL NOT OPERATE ON THE FLOOR OF THE EXCAVATION. ANY MATERIAL
COMPACTED BY THE OPERATION OF THE CONSTRUCTION EQUIPMENT SHALL BE REMOVED AND REPLACED WITH NON-COMPACTED
MATERIAL.
3.3. PLACE THE SEWER ROCK TO THE SPECIFIED DEPTHS. DO NOT CONTAMINATE SEWER ROCK WITH NATIVE MATERIAL OR SPOILS FROM
EXCAVATION. LEVEL ROCK SURFACE TO ±1" PRIOR TO INSTALLING THE PERFORATED PIPE.
3.4. ALL PIPE SHALL BE SCHEDULE 40 ABS AND OR PVC CONFORMING TO ASTM F628 AND ASTM D3034 AS APPLICABLE OR ENGINEER
APPROVED EQUAL.
3.4.1. ALL PRESSURIZED SEWER LINES SHALL BE CONSTRUCTED OF SCHEDULE 40 PVC CONFORMING TO ASTM D1785 OR ENGINEER
APPROVED EQUAL
3.5. FOR MOA PROJECTS THE MINIMUM SOIL COVER SHALL BE 3 FEET OVER SEWER LINES AND DRAIN FIELDS AND 4 FEET OVER THE SEPTIC
TANK. ONE INCH OF INSULATION MAY BE SUBSTITUTED FOR 1 FOOT OF SOIL COVER.
3.6. FOR STATE OF ALASKA (ADEC) PROJECTS THE REQUIRED SOIL COVER IF 4 FEET FOR ALL WASTEWATER SYSTEM COMPONENTS.
3.7. THE MINIMUM ALLOWABLE SOIL COVER SHALL OVER ANY WASTEWATER SYSTEM COMPONENT SHALL BE 2 FEET WITH 2 INCHES OF
APPROVED INSULATION.
3.8. ALL INSULATION SHALL BE 2" THICK DOW HI-40 INSULBOARD OR ENGINEER APPROVED EQUAL. CENTER INSULBOARD WIDTH OVER
SEPTIC TANK, DRAIN FIELD, OR SEWER LINES.
3.9. GEOTECHNICAL FABRIC SHALL BE TYPAR 3401 OR ENGINEER APPROVED EQUAL. LAP ALL JOINTS 2 FEET MINIMUM. GEOTECHNICAL FABRIC
SHALL CONFORM TO AASHTO M288 CLASS 3 AND HAVE THE FOLLOWING CHARACTERISTICS:
3.9.1. MINIMUM PERMITTIVITY (ASTM D4491) -0.5/sec
3.9.2. MAXIMUM APPARENT OPENING SIZE (ASTM D4751) - 0.20 TO 0.21mm (US SIEVE #70)
3.10. COVER THE DISTRIBUTION PIPE WITH A MINIMUM OF 2" OF SEWER ROCK AND COVER WITH GEOTEXTILE BEFORE PLACING INSULATION
AND BACKFILL.
3.11. MATERIAL USED AS FILL SHALL BE CLEAN AND FREE OF ORGANICS, TRASH AND CONSTRUCTION DEBRIS.
3.12. SLOPE ALL FILL MATERIAL TO DRAIN AT 2% MINIMUM SLOPE AND 3:1 MAXIMUM SLOPE AND IN SUCH A MANNER THAT PONDING AT OR
NEAR THE DRAIN FIELD DOES NOT OCCUR. THE FILL SHALL BE LEFT AT 6" HIGHER THAN SHOWN TO ALLOW FOR SETTLEMENT. SEED
SURFACE AFTER COMPLETING INSTALLATION AS PER MOA CODE.
3.13. RECORD THE FINISH GROUND ELEVATION OVER THE BEGINNING, MIDDLE AND END OF SYSTEM.
3.14. MAINTAIN 5' SEPARATION BETWEEN PERCOLATION HOLE AND THE DRAIN FIELD TRENCH.
3.15. EXPOSE, PUMP AND FILL LOG DISPOSAL CRIB OR CONCRETE TANK WITH SOIL TO ABANDON IAW WITH MOA CODE IF NEEDED.
NOTES & SPECIAL PROVISIONS:
4. CONTRACTOR RESPONSIBILITIES:
4.1. THE CONTRACTOR SHALL FAMILIARIZE THEMSELVES WITH THE SITE CONDITIONS AND LOCATIONS OF
ALL LOT LINES, EASEMENTS, WELLS (E & P), SEPTIC SYSTEMS (E & P) AND SHALL MEET MINIMUM
SEPARATION DISTANCES OR AS NOTED.
4.2. THE CONTRACTOR (BOTH WELL AND SEPTIC SYSTEM CONTRACTORS) SHALL HAVE ANY WELL LOCATION
AND SEPTIC LOCATION STAKED AND ANY LOT LINE AND WELL RADIUS SHOWN ON THE PLAN WITHIN
30 FEET OF THE PROPOSED SYSTEM STAKED BY A REGISTERED LAND SURVEYOR BEFORE STARTING THE
WORK.
4.3. THE CONTRACTOR IS RESPONSIBLE FOR ALL R.O.W. AND OTHER REQUIRED PERMITS, OTHER THAN THE
ATTACHED.
4.4. THE CONTRACTOR SHALL CALL FOR LOCATING OF ALL BURIED UTILITIES.
4.5. THE CONTRACTOR SHALL PROVIDE 24 HOUR NOTICE TO THE ENGINEER PRIOR TO START OF WORK.
ALL SURVEYING AND LOCATES SHALL BE IN PLACE PRIOR TO NOTIFYING THE ENGINEER.
4.6. THE CONTRACTOR SHALL NOTIFY THE ENGINEER OF ANY DISCREPANCY BETWEEN THE APPROVED
DRAWINGS AND SITE CONDITIONS/LIMITATIONS POTENTIALLY CAUSING THE NEED TO MODIFY THE
DESIGN.
4.7. AT THE COMPLETION OF THE WORK, THE CONTRACTOR SHALL SUBMIT RED-LINE AS-BUILT DRAWINGS
TO THE ENGINEER. THE RED-LINES SHALL INCLUDE PIPE LENGTHS, ORIGINAL GROUND ELEVATIONS,
PIPE ELEVATIONS, AND TANK ELEVATIONS.
4.8. THE CONTRACTOR SHALL PROVIDE PHOTOGRAPHS OF THE SYSTEM INSTALLATION TO INCLUDE
BOTTOM OF EXCAVATION, TOP OF PIPE WITH CLEAN-OUTS AND MONITOR TUBES INSTALLED,
INSTALLED TANK AND FINAL GRADING.
5. THE CONTRACTOR SHALL CERTIFY THAT ALL WORK WILL BE PERFORMED IN ACCORDANCE WITH THE
APPROVED PERMIT, AND ANY AND ALL CHANGE ORDERS, AND THAT THE AS-BUILT REDLINES ARE TRUE AND
ACCURATE REPRESENTATION OF THE PROJECT AS CONSTRUCTED.
BY ACCEPTANCE AND CONSTRUCTION OF THE ATTACHED PLANS THE OWNER, CONTRACTOR AND APPLICABLE
REGULATORY AGENCY AGREE TO THE PROVISIONS SET FORTH ON THIS PAGE AS APPLICABLE AND ANY
SUBSEQUENT SPECIFICATIONS (IF ATTACHED).
Municipality of Anchorage
On-site Water and Wastewater
REVIEWED FOR CODE COMPLIANCE
OSP251330, Isatou Njie, 09/18/25