Waste Discharge Requirements

WDR

Water Quality Compliance – Rice Waste Discharge Requirements

The Central Valley Regional Water Quality Control Board (CVRWQCB) adopted the Rice Waste Discharge Requirements (Rice WDR) Order on March 27, 2014. Rice growers north of Sacramento submit the Farm Evaluation and the Nitrogen Management Plan to the California Rice Commission (CRC) annually by 1 March. As a mandatory requirement, the CRC must provide the CVRWQCB with the acreage not included in the Farm Evaluation Summary Report. The CVRWQCB will then proceed with further action.

WDR Stories

sunset over the rice fields

Drinking Water Supply Well Monitoring goes Online

Drinking water supply well monitoring is a new regulatory requirement for Sacramento Valley growers/landowners starting January 1, 2022. Rice growers in the Sacramento Valley are automatically members of the Sacramento Valley Rice Growers Coalition, with the requirement specific to wells that supply drinking water on parcels where rice is produced. Drinking water supply wells on non-rice parcels receive coverage under the Sacramento River Watershed Coalition. Rice grown in the San Joaquin Valley starts earlier and growers/landowners are directed to the local water quality coalition.*

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sunset over the rice fields

Grower Reporting Requirements for WDR Orders

This is the time of year we receive calls asking where to report Farm Evaluations and various other information for the Waste Discharge Requirements (WDR) Order. The WDR Orders were amended in 2018, resulting in changes to the grower reporting requirements. A table listing side-by-side requirements with the Rice WDR and the Sacramento River Watershed WDR, the coalition for non-rice crops, is our effort to provide you with timely information. 

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New Nitrate and Salt Regulations for Agriculture in 2020

New Nitrate and Salt Regulations for Agriculture in 2020

In 2020, the Central Valley Regional Water Quality Control Board will begin implementing strict new requirements for the discharge of nitrate and salt from agriculture. After more than a decade in development, the CV-Salts Basin Plan Amendment will make two important changes to all Waste Discharge Requirements (WDR’s) under which all surface and groundwater discharges fall. Here is a link to a comprehensive summary of the changes and helpful maps

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