SB-88 Alternative Compliance Plan
In order to comply with the California Senate Bill-88 (SB-88) regulations, those diverting more than 10 acre-feet of surface water per year must measure and report the timing, rate and volume of their water diversions to the California State Water Resources Control Board (SWRCB). To facilitate landowners’ compliance with these legal requirements in the unique circumstances of the Sacramento–San Joaquin River Delta, The Freshwater Trust developed a novel Alternative Compliance Plan that used a combination of remote sensing, physical data and grower-supplied information to estimate surface water diversions. In 2023, TFT supported a new Delta-wide ACP that relies exclusively on OpenET data. This experiment will provide critical data to compare different sources of evaporation and transpiration data (consumptive demand) with local estimates of surface water diversion.
Thank you for participating in The Freshwater Trust’s Alternative Compliance Plan.
Participation fee: If you have already signed the Landowner Participation Agreement with TFT and would like to pay the annual per-diversion fee, click here.
Monthly reporting: If you have already signed the Landowner Participation Agreement with TFT and would like to report your monthly crop and water data, click here.
To comply with SB-88, you MUST either install a compliant meter or sign on to an Alternative Compliance Plan. Signing The Freshwater Trust’s opt-in form (below) makes you compliant with the law because you are now part of an ACP reviewed by the Delta Watermaster.
SB 88 legal deadlines for signing on to an Alternative Compliance Plan or installing a compliant meter:
Diverting 1000+ af: Jan 1, 2017
Diverting 100+ af: July 1, 2017
Diverting 10+ af: Jan 1, 2018
Diverting less than 10 af: No meter required.
The Freshwater Trust’s Measurement Method and Alternative Compliance Plan follows: Chapter 2.8, Division 3 of Title 23, section 935 Alternative Compliance for a Measuring Device or Measurement Method Requirement. Read full Plan here.
By clicking submit you agree to the above Terms and Conditions of the Delta Measurement Experiment Consortium Request for Extension of Time Opt-in Form.