What is the timeline for GSP submittal?

The implementation process of the GSP is continuous and will be ongoing over at least the next 50 years. The GSA adopted the Groundwater Sustainability Plan on January 11, 2022 and submitted the GSP to DWR on January 31, 2022. DWR has 20 days to complete their initial review prior to making the GSP public on their SGMA portal. DWR will then offer a 75-day public comment period. DWR has two years to determine whether the GSP meets the requirements of SGMA.

The GSP must be updated every five years. Annual reporting is required to demonstrate implementation actions and progress towards either achieving or maintaining groundwater sustainability. SGMA Annual Reports are due to DWR every April 1; the next Annual Report is due April 1, 2022. The next GSP update will be due in 2027.

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1. What is a GSP?
2. What is the goal of the GSP?
3. What are required elements of a GSP?
4. How do the GSP and the Napa Valley Integrated Hydrologic Model account for future development?
5. Does the water budget account for extractors of groundwater and surface water outside of the Subbasin?
6. What is the timeline for GSP submittal?
7. How is the GSP related to the Napa Valley Drought Contingency Plan?
8. What is the study of Hennessey and Milliken watersheds and how does it relate to the GSP?
9. Return to the Groundwater FAQ page