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Irrigated Lands Regulatory Program (ILRP)

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Important News!

On 7 February 2019, the Central Valley Water Board amended General Orders for Growers in Third-Party groups (coalitions) within the Central Valley, except for the Eastern San Joaquin River Watershed Area (ESJ Area). Due to the revised general orders, growers outside of the ESJ Area who intend to join a coalition no longer need to submit a Notice of Intent (NOI) to the Central Valley Water Board. However, because of the current differences in general orders, all available outreach material on the ILRP webpage continue to state that all growers who intend to join a coalition are required to submit an NOI to the Central Valley Water Board().

*Please note that if you intend to join a coalition and are not within the Eastern San Joaquin River Watershed Area, you do not need to submit a Notice of Intent or fee to the Central Valley Water Board.


Overview

A range of pollutants can be found in runoff from irrigated lands, such as pesticides, fertilizers, salts, pathogens, and sediment. At high enough concentrations, these pollutants can harm aquatic life or make water unusable for drinking water or agricultural uses.  The Irrigated Lands Regulatory Program (ILRP) was initiated in 2003 to prevent agricultural runoff from impairing surface waters, and in 2012, groundwater regulations were added to the program.  Waste discharge requirements (also known as "WDRs" or "Orders"), which protect both surface water and groundwater, address irrigated agricultural discharges throughout the Central Valley.

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Facts and Information