Channel Migration Reports

All Basin Plans
Listing of adopted basin plans. See Our Projects page for listing of basin plans that are in progress.

View Pierce County's 2020-2025 Surface Water Improvement Program

Rivers Flood Hazard Management Plan
Plan focused on the main stems of rivers in Pierce County, including: Puyallup, White, Carbon, Nisqually, Green and Mashel rivers and South Prairie Creek.

Fact Sheets & Brochures
Browse various fact sheets and brochures provided by Pierce County.

NPDES Reports
Check out annual National Pollutant Discharge Elimination System (NPDES) reports.

Spanaway Lake Management Plan

Stormwater Management & Site Development Manual
Approved in December 2015

2015 PCSWMM AutoCad Files (43mb)
This is Stormwater Management & Site Development Manual by Volume available for engineers.

Studies
Access studies related to Surface Water Management division.

System Wide Improvement Framework (SWIF)

Weather Stations
View weather data for weather station locations around Pierce County.