DDECM Environmental Impact Review--Comments Open until October 17, 2021
Thurston County Public Works has completed the Washington State Environmental Policy Act (SEPA) application to update the DDECM.
DDECM Environment Impact Review Documents:
2022 Drainage Manual Update
We’re updating the DDECM per Department of Ecology requirements. The updated version will become effective on June 30, 2022.
In addition to incorporating minor staff- and industry-requested changes, nine significant changes were included in this update:
2021 changes in a Word document track changes format: