Basin Prioritization Update
January 31, 2015

DWR implements initial statewide prioritization of basins.
Draft GSP Regulations
August 1, 2015

DWR conducts listening sessions for draft Groundwater Sustainability Plan (GSP) regulation development.
Boundary Regulations
January 1, 2016

DWR adopts regulations for basin boundary adjustments, accepts adjustment requests through March 2016.
GSP Regulations
June 1, 2016

DWR adopts regulations for evaluating and implementing Groundwater Sustainability Plans (GSPs), coordination agreements, and alternatives to GSPs.
Report: Water Available for Groundwater Replenishment
December 31, 2016

DWR publishes a report on water available for groundwater replenishment.
BMPs Published
January 1, 2017

DWR publishes best management practices for sustainable management of groundwater.
GSA Formation Deadline
June 30, 2017

Deadline for establishment of Groundwater Sustainability Agencies for all high and medium priority basins.
Implement GSP
January 31, 2020

Deadline to adopt and begin implementation of Groundwater Sustainability Plans (GSPs).