ISF Rulemaking 2016-2018

Instream Flow Program Rules
Env-Wq 1900
Rules for the Protection of Instream Flow on Designated Rivers

Following the completion of the Instream Flow Pilot Program on the Souhegan and Lamprey Designated Rivers, NHDES revised the rules to apply instream flow protections to the other Designated Rivers of the State, as required by RSA 483. For information about the Instream Flow Program please visit the ISF Webpage.

Current News:

The Joint Legislative Committee on Administrative Rules (JLCAR) approved the Rules for the Protection of Instream Flow on Designated Rivers – Env_Wq-1900 on December 20, 2018. The adopted rules became effective on December 22, 2018.

ISF Rulemaking Resources:

Instream Flow Pilot Program Report (December 2015)  – Results and recommendations of the ISF Pilot Program
Instream Flow Pilot Program Report (December 2015) – APPENDICES

RSA 483 – Rivers Management and Protection Program statute (includes Instream Flow Program)