Phone: (206) 242-3236

3460 S 148th Suite 100
Seattle, WA 98168
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Side Sewer Requirements

To view a typical side sewer requirements plan and construction notes for Valley View Sewer District click on the following link. Side Sewer Requirements Plan

GENERAL REQUIREMENTS

  1. Side Sewer Permit is required prior to work being started.
  2. Legal description of lot and plot plan with dimensions must be provided.
  3. All work done in the public right of way must be done by a licensed and bonded contractor.
  4. Bedding of pipe must be done by hand. No backfilling will be done until inspection is completed and approved.
  5. Bedding and initial backfill material must be free from large rocks.

SIDE SEWER REQUIREMENTS

  1. 4-inch (minimum size) sewer pipe required on property, 2% minimum grade ( 1/4" fall per foot).
  2. Joint side sewers require 6 inch pipe for common use and require an easement agreement. No more than 4 single family residences are allowed to connect into one 6 inch sewer stub.
  3. Listing of approved pipe:
    • PVC = Type SDR-35 ASTM-3034 (with standard gasket joints)
    • ABS = Type DWV Schedule 40 ASTM D 2661 (with solvent weld or glue joints)

    NOTE: Solvent weld joints are only permitted in conjunction with ABS type pipe not PVC.

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