D E C banner
D E C banner


The New York State Department of Environmental Conservation has added a link to a translation service developed by Microsoft Inc., entitled Bing Translator, as a convenience to visitors to the DEC website who speak languages other than English.

Additional information can be found at DEC's Language Assistance Page.

Stormwater Guidance Documents

Guidance on issues relating to Stormwater issues can be found in the following pages:

FAQ about technical requirements GP-02-01 (PDF) (258 kB)

Guidelines for completing the MS4 NOI (PDF) (217 kB)

Interim strategy for redevelopment projects

Local School District Decision Tree (PDF) (60 kB)

New York State Guidelines for Urban Erosion and Sediment Control

New York State Stormwater Management Design Manual

MS4 Designation Criteria (PDF) (223 kB)

MS4 Frequently Asked Questions (FAQ) (PDF) (127 kB)

Phase II Responsiveness Summaries (PDF) (125 kB)

Reducing the Impacts of Stormwater Runoff from New Development

The Simple Method to Calculate Urban Stormwater Loads (PDF) (189 kB)

Winter site stabilization/site inspection GP