In July 2003, the Central Valley Regional Water Quality Control Board (Regional Board) adopted a set of regulations pertaining to discharges of waste from irrigated agricultural lands and managed wetlands* into waters of the State. These regulations—more generally referred to as the Irrigated Lands Regulatory Program (ILRP)—provided an individual producer or managed wetland owner with three options to comply:
1. Join a coalition group that will meet requirements of the ILRP. The original deadline to join a coalition was December 31, 2006; however, producers and managed wetland owners may still be eligible to join.
To join, please contact the Colusa Glenn Subwatershed Program for instructions regarding local coalition membership.
2. File a Notice of Intent with the Regional Board to participate directly in the ILRP as an individual.
3. Opt out of the ILRP and apply for a waste discharge requirement (WDR) directly with the Regional Board.
The Colusa Glenn Subwatershed Program encourages those subject to ILRP to strongly consider choosing option one.
*Managed wetlands are exempt, effective 2021.