1. Emergency Phone: 910-455-0722

Onslow Water and Sewer Authority NC Homepage
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Engineering

The Engineering Department is responsible for planning, developing, and managing projects from concept through construction. The department accomplishes these assignments by administering, reviewing, inspecting and approving water and wastewater projects within ONWASA's Capital Improvement Plan and from third party developers.

Project Submittal Instructions

Sewer Allocation Request

Water Allocation Request

The ONWASA Board of Directors approved and adopted the revised Manual of Standards, Specifications, and Details on May 19, 2016.  Modifications, additions, deletions and clarifications made since adoption are included in MSSD ADDENDUM NO. 1 dated October 18, 2018.

All new design and construction of water distribution and sanitary sewer systems are required to adhere to the approved Manual of Standards, Specifications, and Details.

Questions and inquiries for assistance should be directed to 910-937-7526.


  1. Onslow Water and Sewer Authority NC Homepage

Contact Us

  1. Onslow Water and Sewer Authority
    228 Georgetown Road
    Jacksonville, NC 28540

    Phone (910) 455-0722
    Fax (910) 455-2583
    Contact us >

  1. Emergency Phone: 910-455-0722

  1. North 811 Carolina

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