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HomeMy WebLinkAboutDISCO LT 1Onsite File DISCO Lot 1 Formerly Hanshew Heights 4A and 46, plat 2024-44 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 hftp://www.muni.org/onsite On -Site Water & Wastewater System Permit Permit Number: OSP251242 Work Type: WellSeptic Initial Tax Code Number: 01505196000 Site Legal Address: Site Mailing Address: DISCO LT 1 G:2437 Owner: HULTQUIST HOMES INC Design Engineer: PANNONE ENGINEERING SERVICES This permit is for the construction of: Effective Date: Expiration Date Lot Size in Sq Ft: Total Bedrooms: tt1 � n r 5, Uehartmc�tit 8/1 /2025 8/1 /2026 20458 Q Disposal Field Q Septic Tank ❑ Holding Tank ❑ Privy 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: Date: Issued By: Date: I MUNICIPALITY OF ANCHORAGE Development Services Department Phone: 907-343-7904 On -Site Water & Wastewater Section ON -SITE SEPTIC/WELL PERMIT APPLICATION Parcel I.D. 015-051-96 Property owner(s) Hultquist Homes Inc Mailing address 12570 Old Seward Hwy Site address NHN Nickell Circle Legal description DISCO Lot 1 Number of Bedrooms 6 Engineering Firm Pannone Engineering Services, LLC Building Permit Number Day phone Not Applicable ❑ APPLICATION IS FOR: APPLICATION IS AN: (® all that apply) Disposal Field 0 Initial D Septic Tank 171 Upgrade ❑ Holding Tank ❑ Renewal ❑ Privy ❑ Well 0 Water Storage ❑ THIS APPLICATION INCLUDES A WAIVER REQUEST FOR: Permit/Rush Fees: P x Date of Payment: 7//712i Permit No. _Af Zj 2Z1Z May 2025 Waiver Fees: Date of Payment: Waiver No. Distance: Pannone Engineering Services LLC Steven R. Pannone, Principal Registered Professional Engineer E-mail: steve@panengak.com 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: Disco Lot 1 Well and Septic System Permit Request This is a design narrative for a permit to install an initial well and septic system upgrade on the subject property. The proposed installation will serve a five (5) bedroom house and a one (1) bedroom ADU. This lot will be served by a private onsite well. The surrounding lots are served by public water systems. Due to area constraints on the property the proposed wastewater treatment system is within the 200-foot protective radius of two (2) of the surrounding water systems. Please see attached approved separation distance waivers from ADEC Drinking Water Program. 1. Soils: Two (2) test holes were performed on this lot by Garness Engineering Group, Ltd (GEG). The soils logs are attached to this request. Based on the soil profile and percolation tests an application rate of 0.8 gpd/SF was used for the design of a conventional wastewater treatment system in the area of the test hole. Groundwater and impermeable layers were not encountered in either test pit to a depth of at least 16.5 feet. 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. 4. Topography: See attached site plan for area topography. 5. 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/Civil Engineer 9 July 2025 Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP251242, Curtis Townsend, 08/01/25   July 15, 2025 Department of Environmental Conservation DIVISION OF ENVIRONMENTAL HEALTH Drinking Water Program 555 Cordova Street Anchorage, Alaska 99501 Main: 907.269.7656 Toll Free: 866.956.7656 Fax: 907.269.7650 dec.alaska.gov Joe Robillard, Project Manager File: Cohoe Sub. & Hanshaw Heights Sub. Hultquist Homes, Inc. PWSID: 212924 & 211643 12570 Old Seward Highway Class: Community Anchorage, AK 99515 Source: Groundwater joe@hultquisthomes.com Re: Disco Subdivision Lot 1 – Source-Sewer Separation Distance Waiver Affecting Cohoe Sub. PWS 212924 and Hanshew Heights Sub. PWS 211643 Mr. Robillard, On June 10, 2025, this office received a submittal from Steven Pannone, P.E. with Pannone Engineering Services, LLC (PES) requesting a separation distance waiver from a proposed septic system to be located on Disco Subdivision Lot 1, located on the east side of Nickell Circle, in Anchorage AK. A revised submittal adjusting separation distances was received on July 9, 2025. This letter issues a Separation Distance Waiver for the requested reduction in the State’s minimum separation distance requirement between the subject PWSs drinking water well sources and the proposed septic system, as detailed in the submittal. Project Description A proposed septic system for a proposed 5-bedroom single family home and a 1-bedroom additional dwelling unit on Disco Subdivision Lot 1 is proposed to encroach on two existing Public Water Systems’ (PWS) drinking water source wells. Separation Distance Waiver The 200-foot radius of source wells for Cohoe Subdivision PWS (212924) and Hanshew Heights Subdivision PWS (211643) are encroached upon by a proposed private septic system located on and serving planned building works on Disco Subdivision Lot 1. Cohoe Subdivision Source Well (WELTS ID: 10506) to Proposed Potential Contaminants  2,500-gallon septic tank: 140 feet.  Absorption field: 140 feet.  Reserve area: 175 feet. Hanshew Heights Subdivision Source Well (WELTS ID: 11079) to Proposed Contaminants  2,500-gallon septic tank: 175 feet.  Absorption field: 165 feet.  Reserve area: 150 feet. 2 Disco Sub. Lot 1 – Separation Distance Waiver PWS 212924 & 211643 250715 Disco Subdivision Lot 1 Source Waiver 212924 and 211643 WA.docx The separation distance encroachment was reviewed based on the following elements to maintain public safety. This decision is based on conditions specific to this project, as described in the submittal and as summarized below:  Well logs for both wells show that they are drawing from an aquifer approximately 235 feet deep, separated from the surface with layers including silt, clay and hardpan gravel which will help to protect the aquifer from potential wastewater intrusion.  Sample records from both PWSs show no recent positive total coliform results in the last 7 years, and nitrate/nitrite values far below the EPA MCL.  The Cohoe subdivision well is approximately 10 feet in elevation higher than the proposed septic system, and—while approximately 5 feet lower in elevation—the Hanshew Heights subdivision well is separated by Nickell Circle, which has a crown 1- to 2-feet higher than the proposed septic system.  The proposed septic tank is made out of steel and epoxy-coated to inhibit rust and prolong the life of the tank.  The proposed septic system and its components are designed in accordance with applicable Municipality of Anchorage regulations.  Based on historical information, both PWSs were constructed to meet source protection requirements in place at the time and are currently operating within DEC regulations. Based on an evaluation of the available information and in accordance with the State’s Drinking Water Regulations, 18 Alaska Administrative Code (AAC) 80, a Separation Distance Waiver for the encroachment detailed is issued. Please forward any record drawings and documentation of construction to this office once completed. The separation distance encroachment is approved with the following conditions:  The wastewater system must be installed by a person meeting the requirements of 18 AAC 72.  The sewage system must be maintained in accordance with State of Alaska and Municipality of Anchorage requirements and best practices for as long as the system is in operation. The lot owner should keep all records, such as installation records, septic tank maintenance, inspections, and pumping, and have them available on request. For additional information, such as recommendations for pumping the septic tank on an annual basis, see the following: o https://dec.alaska.gov/water/wastewater/engineering/maintain-septic o https://www.muni.org/Departments/OCPD/development-services/wells-septic  Any changes, constructed or natural, may void this waiver and the sewer may be required to be relocated. This waiver is limited to this project and its current site conditions. Approval of this waiver does not obligate the Department to approve future waiver requests proposing the same design. Any changes, constructed or natural, that affect the conditions to which this waiver was granted, or if the conditions are found to be different than described, will void this waiver. Occurrences of floods, earthquakes, and human activity can change the geophysical, chemical, and biological conditions under which this determination was made. This determination does not preclude the Department from reevaluating this separation distance waiver in the event such conditions change or additional information becomes available to the Department that would warrant further review. 3 Disco Sub. Lot 1 – Separation Distance Waiver PWS 212924 & 211643 250715 Disco Subdivision Lot 1 Source Waiver 212924 and 211643 WA.docx Limitations and Appeal Process This determination is not approval of omissions or oversights by this office or non-compliance with any regulation. This does not imply the granting of additional authorizations, nor obligate any federal, state, or local regulatory body to grant future authorizations. This determination does not guarantee correctness of functional design or waiver the owner’s responsibility for continued compliance with state, federal, and local regulations. A person authorized under a provision of 18 AAC 15 may request an informal review of a contested decision by the Division Director in accordance with 18 AAC 15.185 and/or an adjudicatory hearing in accordance with 18 AAC 15.195 - 18 AAC 15.340. See DEC’s “Appeal a DEC Decision” web page https://dec.alaska.gov/commish/review-guidance/ for access to the required forms and guidance on the appeal process. Please provide a courtesy copy of the adjudicatory hearing request in an electronic format to the parties required to be served under 18 AAC 15.200. Requests must be submitted no later than the deadline specified in 18 AAC 15. If you have any questions regarding this approval, please call me at 907-269-3076 or email at robert.ellis@alaska.gov. Sincerely, Robert Ellis Engineering Associate I, DEC Cc.: Steve Pannone, P.E., PES, steve@panengak.com Aaron Paradis, EIT, PES, aaron@panengak.com Cohoe HOA, Tim Edmondson, kedmondson@gci.net Hanshaw Heights HOA, Jacki Sanvig, jacki_ann@hotmail.com Municipality of Anchorage Onsite Water & Wastewater, rebecca.carroll@anchorageak.gov DEC-Drinking Water, karis.barnes@alaska.gov, monica.ague@alaska.gov, and anasofia.pottellaperez@alaska.gov PA N N O N E E N G S V C , L L C ( C . I . 1 0 8 8 ) AC P FO R C O N S T R U C T I O N DI S C O L 1 HU L T Q U I S T H O M E S I N C SI T E : N H N N I C K E L L C I R C L E AN C H O R A G E , A K 06 / 0 2 / 2 0 2 5 01 5 - 0 5 1 - 9 6 OS P 2 5 1 2 4 2 SR P RE V 1 : 0 7 / 0 9 / 2 0 2 5 08 / 0 1 / 2 0 2 5 1" = 6 0 ' 1 O F 3 Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP251242, Curtis Townsend, 08/01/25 PA N N O N E E N G S V C , L L C ( C . I . 1 0 8 8 ) AC P FO R C O N S T R U C T I O N DI S C O L 1 HU L T Q U I S T H O M E S I N C SI T E : N H N N I C K E L L C I R C L E AN C H O R A G E , A K 06 / 0 2 / 2 0 2 5 01 5 - 0 5 1 - 9 6 OS P 2 5 1 2 4 2 SR P RE V 1 : 0 7 / 0 9 / 2 0 2 5 08 / 0 1 / 2 0 2 5 1" = 5 0 ' 2 O F 3 Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP251242, Curtis Townsend, 08/01/25 PA N N O N E E N G S V C , L L C ( C . I . 1 0 8 8 ) AC P FO R C O N S T R U C T I O N DI S C O L 1 HU L T Q U I S T H O M E S I N C SI T E : N H N N I C K E L L C I R C L E AN C H O R A G E , A K 06 / 0 2 / 2 0 2 5 01 5 - 0 5 1 - 9 6 OS P 2 5 1 2 4 2 SR P RE V 1 : 0 7 / 0 9 / 2 0 2 5 08 / 0 1 / 2 0 2 5 NO S C A L E 3 O F 3 2.2. SCOPE OF WORK: INSTALL SYSTEM IN ACCORDANCE WITH THE ATTACHED DESIGN AND SPECIFICATIONS. 16.5 FEET 16.5 FEET Municipality of Anchorage On-site Water and Wastewater REVIEWED FOR CODE COMPLIANCE OSP251242, Curtis Townsend, 08/01/25