The Permit Writer’s Manual (Ecology Publication Number 92-109) is meant to guide permit writers and the public through our process of developing and issuing wastewater discharge permits.
- Permit Writer's Manual Appendices include specific technical guidance for the individual permitting process.
- PermitCalc Workbook contains a complete list of useful spreadsheets and instructions for NPDES permit writers in the "intro" tab. These spreadsheets are referred to in the Permit Writer's Manual.