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Instruction Provided By:

Douglas Howie, Dept. of Ecology

Brian Morgenroth, City of Walla Walla

Virtual Training Dates: Nov. 16 & 17 from 9:30am-1:00pm

Registration Now Open!

For questions regarding these trainings contact Laurie Larson

The Eastern Washington Phase II Municipal Stormwater Permit required Permittees to have programs to control runoff from new development, redevelopment. These programs are required to include a review of stormwater site plans for development activities. The WSC partnered with the Department of Ecology to develop a Plan Reviewer Training. This training is intended to provide municipal staff whose primary function is to review plans for a general overview of how to review a plan set to ensure compliance with the Permits.

 Training Materials, Tuesday, Nov 16, 2021 


1. AM Session PowerPoint 

2. Figure 1 Flow Chart Project Tier Determination 

3. Figure 2-3 Flow charts Core Elements Determination 

4. Design Infiltration Rate Determination 

5. Large Sized Project Checklist 

6. Medium-Sized Project Checklist 

7. Walla Walla SW Design Standards Handbook 

Training Materials, Wednesday, Nov. 17, 2021 


8. GSI Opportunities & Plan Review Process Checklist 

9. Subdivisions 

• Geotech Report Subdivision 

• Sub Post Development Map – As-built 

• Sub Post Development Map – Ortho 

• Sub Pre-Development Map – Ortho & Topo 

• Sub Pre-Development Map – Ortho 

• Sub Pre-Development Map – Topo 

10. Commercial 

• Civil Plans for Commercial 

• Comm Pre-Development Map – Ortho & Topo 

• Comm Pre-Development Map – Topo 

• Geotech Report for Commercial 

*Materials used in this training are courtesy of the City of Walla Walla for reference. Each jurisdiction should review its specific codes and ordinances. REFERENCE SWMMEW AND WALLA WALLA