National Pollutant Discharge Elimination System (NPDES)
Request for Comment
Comment period closes 1/28/2019: Proposed Modification of the 2017 Construction General Permit (CGP)
New and Notable
- Low Flow Statistics Tools Handbook
- FAQs for Control Authorities on Dental Rule
- Final Rule Published in Federal Register: Public Notification Requirements for CSOs to the Great Lakes Basin
- Online Training: Permit Writing Tips and Best Practices
- Online Training: Animal Agriculture, Manure Management and Water Quality
- Compendium of State Approaches for Manure Management
- MS4 General Permit Remand Rule
- Rainfall Erosivity Factor Calculator for Small Construction Sites
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