Seattle Public Utilities


Find plans, agreements, educational materials, reports, documents and materials that assist with development and construction projects.

Look up new contracts for solid waste, processing, and long haul disposal.

The Records Vault includes maps, publications, aerial photos, survey information, and more.

State Environmental Policy Act (SEPA) Review

Combined Sewer Overflow (CSO) Outfall 171 Rehabilitation Project
SEPA Determination of Non-Significance 11/08/2018
SEPA Environmental Checklist