Standards, Specifications & Drawings


Below are Lakehaven's current standards, specifications & drawings for water & sewer system design & construction, for Developer Extension projects. Lakehaven is currently undergoing review of some of these standards, specifications & drawings, and will be updating this web page & information accordingly. If there are any questions on Lakehaven's requirements for Developer Extension projects, please contact Lakehaven's Engineering Technician assigned to a specific project or Development Engineering staff.

Sewer System (Lakehaven & Edgewood)

Water System (Lakehaven)

  1. Physical Address

    31623 1st Avenue S
    Federal Way, WA 98003

    Mailing Address
    P.O. Box 4249
    Federal Way, WA 98063

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