Sustainable Groundwater Management Act (SGMA)

The “Sustainable Groundwater Management Act” (the “SGMA”) was signed into law by Governor Jerry Brown on September 16, 2014, and consists of three legislative bills: SB 1168, SB 1319 and AB 1739, which will allow true regulation of groundwater.

The main goal of each SGMA is to achieve sustainability thereby bringing each affected basin or subbasin into balance.

West Stanislaus Irrigation District filed to become its own Groundwater Sustainability Agency (GSA). This is the first step in complying with Sustainable Groundwater Management Act (SGMA). The District intends to work with other GSA’s within our groundwater basin to form a common Groundwater Sustainability Plan (GSP).

Draft Delta-Mendota Subbasin Groundwater Sustainability Plan

Delta-Mendota SGMA 2024 First Quarter Newsletter

North-Central Delta-Mendota Subbasin GSP Homepage

Delta-Mendota Subbasin FAQ’s

DWR Homepage for SGMA

Irrigated Lands Regulatory Program (ILRP)

On January 9, 2014, the Regional Water Quality Control Board (RWQCB) adopted new regulatory requirements (General Order) that affect lands within the West Stanislaus Irrigation District.

The General Order outlines very specific instructions for all landowners whose lands are being used for irrigated agricultural purposes; one of the instructions is for landowners to enroll their lands in the LTILRP. The RWQCB requires that landowners must enroll either directly with the RWQCB or enroll with a third-party coalition. Additional information can also be found on the Regional Water Quality Control Board website.

Providing Irrigated Lands Regulatory Program Coverage for the West Stanislaus Irrigation District Farmers and Landowners through the Westside San Joaquin River Watershed Coalition.

Form Submittals

For submitting your Nitrate Management Plans and Farm Evaluation Forms digitally you can go to the Westside San Joaquin River Watershed Coalitions website linked below:

Westside San Joaquin River Watershed Coalition Website