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HomeMy WebLinkAboutMP-24-03 - Supplemental - 0850 Hinesburg Road (29) MEMORANDUM To: Marla Keene, SB Development Review Planner From: Jay Nadeau, SBWD Superintendent CC: Tom DiPietro, SB DPW Director Matt Guerino, SBWD Deputy Director Date: October 11, 2024 Re: SBWD Technical Review, MP-24-03 Please find the South Burlington Water Department’s review comments below. 1. The following note must be provided on all plan sheets and detail pages: All water lines and appurtenances shall be installed in accordance with the Champlain Water District Speci�ications and Details for the Installation of Water Lines and Appurtenances, current edition, henceforth CWD Speci�ications.” 2. The project shall be constructed, completed, maintained, and operated in accordance with the approved plans. No changes shall be made in the project without the written approval of the appropriate SBWD. 3. When a pipe material is speci�ically noted on the approved project drawings, the contractor/developer shall not have the option of utilizing any other pipe material. 4. All Ductile Iron pipe, hydrant barrel, and �ittings for new water lines and appurtenances shall be installed with V-Bio Enhanced Polyethylene Pipe encasement. See CWD Speci�ications for details. 5. Ductile iron pipe shall comply with AWWA C151/ANSI A21.51. Ductile iron pipe shall be minimum thickness class 52. PVC water pipe shall comply with AWWA C900 with minimum Pressure Class 235, DR18 6. Four-inch (4”) and six-inch (6”) DI pipe shall have no less than two (2) bronze wedges installed at each joint. Eight-inch (8”) and larger DI pipe shall have no less than three (3) bronze wedges installed at each pipe joint. 7. Anchor tees (aka: Hydrant tees and Swivel tees) shall be Class 350 ductile iron, cement lined, to AWWA/ANSI C110/A21.10, C111/A21.11, and C104/A21.4. In lieu of Anchor tees, conforming Mechanical Joint tees may be used if a Foster Adaptor is used to secure the valve directly to the branch of the tee. 8. Mechanical joint restraints shall be either EBAA Iron MegaLug, Ford Uni�lange Series 1400, Romac RomaGrip, or approved equal. 9. Gate valves shall be Mueller, Kennedy, AFC, M&H or approved equal on water distribution mains. 10. Gate valve boxes located in roadways or sidewalks shall have one non-adjustable paving riser of a height ranging from two-inches (2”) to four-inches (4”) as need to be brought to �inal pavement grade. 11. Curb boxes located in roadways or sidewalks shall be placed inside a gate valve box top section with cover and brought to �inal pavement/concrete grade with one non-adjustable paving riser. 12. V-Bio polyethylene encasement is required for all ferrous material installations underground. This includes �ittings for PVC and HDPE pipe. 13. Cor-Blue T-bolts and nuts are required for underground installations. 14. Tracer wire and termination box speci�ications are required for all plastic pipe. 15. The SBWD shall be noti�ied in advance to inspect all mechanical joint �ittings, main line taps, appurtenances, thrust blocks, and water line crossings prior to occurrence of back �illing. 16. Size on size direct taps are NOT allowed. The maximum branch size for a water main direct tap shall not be greater than one standard pipe diameter less than the water main size. 17. Stainless steel tapping sleeves shall be TPS Triple Tap or approved equal. Tapping valves shall only be performed by CWD approved contractors. 18. Fire Hydrants shall be Kennedy K-81 D or Waterous Pacer and shall conform to AWWA C502. Note: Waterous Pacer hydrants shall be installed with a Boston Operating Nut. 19. 4” Storz pumper nozzle connections are required on hydrants. Spring loaded hydrant �lags and Storz connections shall be installed before new lines are turned on by the Department. 20. Concrete thrust blocks shall be installed on caps, tees, hydrants and bends of 22.5 degrees and greater. Thrust blocks shall be used in conjunction with “Mega-Lug” restraining glands or approved equal. Poured in place thrust blocks shall be neatly formed with wooden side forms against undisturbed soil. 21. CWD continues to allow for “approved equal” products but they shall be reviewed by the appropriate CWD Division. 22. There is a signi�icant amount of Asbestos Cement (AC) water pipe within the Citys water distribution system. There are a number of regulations that affect work involving AC pipe. The Professional Engineer and Contractor shall be responsible for adhering to the “Vermont Regulations for Asbestos Control” for removal and disposal of AC pipe. Costs associated with any and all labor and materials to properly handle and dispose of existing AC pipe is the responsibility of the Contractor. 23. No parallel underground utility (ex. phone, electric, cable, gas) shall be designed or installed within four feet (4’) of the water main from either side, or above the water main from the bottom of the main to �inish grade. Storm sewer and sanitary sewer separations are only as allowed in these speci�ications and the VT Water Supply Rule. No building or structure shall be built above the water line or within the water line easement. All projects that may cross or impact existing transmission or water distribution lines shall include the requirement to �ield verify all water associated infrastructure that may be impacted. 24. Connections will only be permitted between the hours of 7:00am and 3:00pm on regular Champlain Water District business days, except Fridays. All connections must be completed by 3:00pm; connections that cannot be completed by 3:00pm may be suspended and completed the following business day. A suspended tap may entail back �illing the excavation until the following day. SBWD personnel have the authority to suspend connections that they deem cannot be completed within the time period stated above. 25. No water lines shall be installed after November 15 or before April 1 without prior approval of the SBWD. The SBWD may restrict work before November 15 and after April 1 during adverse weather conditions. The SBWD does not allow excavating water mains or service lines during the winter months except by special permission. 26. The applicant or project engineer shall be responsible for the submittal of test results to the SBWD. Submittal of all test results shall be required prior to the water main being placed into service. 27. Record drawings, prepared by a VT licensed Professional Engineer shall be provided to the SBWD in pdf. and Auto-CAD format. Drawings shall include ties to all gate valves and curb stops to sub-meter accuracy. 28. Approved water mains within public rights-of-way limits of public highways or within an easement approved and owned by the City shall be owned by the City. All other water mains, although considered an extension of the City’s water distribution system, shall be considered private and subject to conditions set forth in the City Water Ordinance. It is the responsibility of the contractor to be familiar with the CWD Specifications beyond what is included in this information. The Champlain Water District Specifications and Detail for the Installation of Water Lines and Appurtenances information can be found at www.champlainwater.org Plan Speci�ic Comments: Sheet MP-2 1. There is a 1-1/2” water line proposed for Phase 1 of this project. That line shall be disconnected from the Hinesburg Road water line when the new water main is installed. Disconnection shall include closing the corporation, disconnecting the water line from the corporation and wrapping the area of water main with V-Bio sleeve. Each existing water service must also be connected to the proposed water main depicted in the Master Plan. 2. The connection of the proposed new water main on the water line serving the Lane Press and Dynapower will require approval from the owner prior to connection. A three-way valve cluster will be required at the time of connection. 3. A permanent easement must be provided to the City for the water main installed outside of the proposed street right-of-way, centered over the installed water main. 4. Prior to construction of the water main proposed for the Master Plan, the SBWD shall be provided plans for further review and comment.