Statewide - Availability of the New York State Stormwater Management Design Manual, July 31, 2024 (2024 Design Manual)

Public Notice

Availability of the New York State Stormwater Management Design Manual, July 31, 2024 (2024 Design Manual)

This notice announces the availability of the issued New York State Stormwater Management Design Manual, July 31, 2024 (2024 Design Manual)

Background and Applicability:

The currently effective Construction General Permit for Stormwater Discharges from Construction Activity, GP-0-20-001, references the 2015 Design Manual. Draft GP-0-25-001, simultaneously publicly noticed today, references the 2024 Design Manual. A draft of the 2024 Design Manual was publicly noticed on October 19, 2022, and the comment period closed on December 18, 2022.

Designers are encouraged to begin using the 2024 Design Manual prior to issuance of GP-0-25-001. Designs completed in conformance with the 2024 Design Manual may indicate on the eNOI (Q23), for GP-0-20-001, that the design conforms with the 2015 Design Manual.

Document:

The 2024 Design Manual can be found on the New York State Department of Environmental Conservation's (NYS DEC) webpage: https://dec.ny.gov/environmental-protection/water/water-quality/stormwa…