10/15/2026 - 10/15/2026
Session 1 Oct 15, 2026 01:00 PM - Oct 15, 2026 04:00 PM
Member Price: $360.00
Non Member Price: $385.00

Class times listed are PST

Western Washington Hydrology Model (WWHM) 2025 Advanced Workshop

AGC Education Foundation partner Clear Creek Solutions has announced a new major update to the Western Washington Hydrology Model: WWHM 2025 (formerly WWHM 2012).

Major changes included in WWHM 2025 are:

- Extension of the historical precipitation time series
- New wetland protection criteria
- Addition of the climate adjusted data based on UW Climate Impact Group modeling work

All of these major changes to WWHM will be discussed. The course content will include training in the advanced features of the WWHM 2025, plus students will receive a demonstration of using the model.

Additional topics covered:

-How to model an offsite basin, a bypass basin, infiltration facilities, a sand filter, lateral flow basins, green roofs, permeable pavement, bioretention/rain gardens, and CAVFS (Compost-Amended Vegetated Filter Strips)
-Model of wetland protection requirements (inflow volume comparison) 
-Explanation of the LID Report

Link to WWHM software