Consultants Propose GSP Project Concepts for McMullin Area

At the May 2nd Board Meeting, technical consultants Provost & Pritchard presented a comprehensive list of potential Groundwater Sustainability Plan (GSP) project concepts for mitigating groundwater overdraft in the Raisin City Water District and McMullin Area GSA. The consultants actively sought public participation and input on the proposed concepts to help prioritize those most favored.

A score granted based on specified criteria will prioritize projects from a technical perspective. The higher the score, the more favorable the project based on the following criteria:

  • Areas of Favorable Recharge (For example, areas of hard pan are likely to receive a lower score on this criteria)
  • Land Use
  • Annual Cost per Acre-Foot
  • Land Owners
  • Project Time to Implement
  • Water Supply/Water Rights
  • Yield
  • Environmental/Regulatory
  • Project Outside of GSA
  • Number of Cooperating Agencies

The consultants presented 37 potential project concepts within five broad project categories: Conjunctive Use (the combined use of surface water and groundwater), Surface Water, Land Management, Water Conservation, and Other. All projects discussed have the ability to mitigate groundwater overdraft, but selecting those to pursue is pending Board and public input on high and low priority measures.

Presented were a number of Conjunctive Use projects, including solutions such as intentional flood irrigation or groundwater recharge in dedicated basins and grower reservoirs. Surface Water projects range from developing surface water storage to more innovative solutions, for instance internal surface water trading amongst growers in the McMullin Area GSA. Land Management solutions include crop conversion to lower water use crops, or landowners selling land but retaining groundwater rights.

Public comment expressed desires for the pursuance of least-cost project options; inquiry surrounded the possibility of incentive programs for projects that would entail voluntary adjustments in landowner water-use practices, such as purposeful flood irrigation for recharge.

Using the scoring criteria in conjunction with landowner feedback, the consultants are working to identify creative solutions that lessen the burden of reaching mandated sustainability as they move toward developing a more detailed project roadmap.