Frequently Asked Questions
FAQ: SGMA Basin Prioritization
From the Department of Water Resources, 7/23/2018
- What is basin prioritization?
- Why are basins being reprioritized?
- What is the significance and practical effect of a change in basin prioritization?
- Do prioritization rankings mean a basin is or is not being sustainably managed in accordance with the SGMA?
- How does basin prioritization impact a basin or subbasin with regards to SGMA compliance and implementation?
- How can I find the ranking for my groundwater basin?
- Can I see how the ranking was determined for my basin?
- What process was used to prioritize the groundwater basins/subbasins?
- If the same process was used, why did the prioritization of some basins change?
- How are adjudicated areas addressed under SGMA? What requirements are there for adjudicated areas under SGMA?
- What is a groundwater-related water transfer and why is it a factor considered in the 2018 SGMA Basin Prioritization?
- How can the public submit comments about the proposed basin prioritization?
- Is there a new deadline to form a GSA and submit a GSP or alternative in those basins newly ranked medium-or high-priority after prioritization results are finalized?
- What are the SGMA requirements for basins newly ranked as low- or very low
-priority after prioritization is finalized?
- What tools are available to help meet the requirements of SGMA if basins change to a high- or medium-priority?
- What funding is available to help meet the requirements of SGMA?
- Is a GSA or local agency still eligible for Proposition 1 grant funding for GSP development in a basin previously ranked high- or medium-priority, but after the prioritization results are finalized is designated as low- or very low-priority?
- Do I need to wait until the 2018 SGMA Basin Prioritization is final before accepting grant funding to develop a GSP awarded by DWR through Proposition 1?
- Is a basin still eligible for facilitation support services if it was previously ranked medium- or high-priority, but after the prioritization results are finalized is designated as low- or very low-priority?
- Is the CASGEM legislation still in effect?
- What are the implications of basin prioritization to the CASGEM program?
- How can DWR engage monitoring within the low- to very low-priority basins?
- How will the 2018 SGMA Basin Prioritization be affected by the 2018 basin
- Will I receive an extension on my deadline to submit a GSP if my basin boundary modification is not accepted?
Frequently Asked Questions, Basin Prioritization (DWR, 7/23/2018)
FAQ: GSP Initial Notification Requirements, When is a Coordination Agreement Necessary, and what is a plan manager
From the Department of Water Resources, 4/18/2018
- What are the options for developing a GSP in a basin?
- What is a GSP Initial Notification?
- What is a Plan Manager?
- Is the Plan Manager Required to Submit the GSP Initial Notification?
- Are there formal adoption requirements related to GSP Initial Notifications?
- What is a coordination agreement?
- What are other related requirements of a GSP Initial Notification?
- Can public comments be submitted for GSP Initial Notifications?
- What if I want to submit modified GSA boundaries?
- Where do I submit my GSP Initial Notification?
- What if I submitted a GSP Initial Notification before the portal went live?
Responses to Frequently Asked Questions: GSP Initial Notification Requirements, When is a Coordination Agreement Necessary, and What is a Plan Manager (Department of Water Resources, 4/18/2018)
FAQ: Groundwater Sustainability Agencies, Unmanaged Areas, County Concerns
From the State Water Resources Control Board, 11/22/2017
- What are the roles of the Department of Water Resources and the State Water Board
in reviewing groundwater sustainability agency notices of intent?
- Can a local agency manage groundwater outside of its jurisdictional boundaries?
- Must the county provide notice if it is accepting its presumed status as the
groundwater sustainability agency for an unmanaged area?
- How can a county prevent an unmanaged area from being subject to reporting of
extractions and payment of fees to the State Water Board if the county cannot
determine which areas will be unmanaged as of July 1, 2017?
- Can a county file a notice to be the GSA for unmanaged areas or opt-out of being
the GSA for unmanaged areas, prior to July 1, 2017?
- Must a local agency become the GSA for a basin if a local agency has submitted an
alternative plan pursuant to Water Code section 10733.6?
- How will the State Water Board respond regarding GSA overlap that occurred prior to
Senate Bill 13 (SB 13) becoming effective?
- Which local agencies are eligible to be GSAs?
- How can a water corporation regulated by the California Public Utilities Commission
or a mutual water company participate in a GSA?
- What happens if the 90-day waiting period to become an exclusive GSA has not
expired by June 30, 2017?
FAQ: Groundwater Sustainability Agencies
From the Department of Water Resources, 1/17/2016
- Are low- and very-low priority basins subject to the same GSA requirements and SGMA timelines as high- and medium-priority basins?
- Which local agencies are eligible to be GSAs?
- Upon deciding to become or form a GSA, what information must a local agency submit in order to have a complete GSA formation notice?
- When does the decision to become a GSA take effect?
- What is an exclusive GSA?
- What is GSA service area overlap and how is it created?
- How is GSA overlap resolved?
- Must the exclusive local agencies listed in Water Code §10723(c) file a GSA formation notice?
- Can a local agency form a GSA for a portion of a basin located outside its service area boundaries?
- If GSA overlap has not been resolved by June 30, 2017, will the county be presumed to be the GSA in the disputed area?
- What happens if an entire basin is not covered by an exclusive GSA(s) by June 30, 2017?
- Can GSAs in a basin change or restructure after June 30, 2017?
- Must a GSA be formed if a local agency wants to prepare and submit an Alternative Plan, as described in Water Code §10733.6?
- What happens if the boundaries of my basin are modified and my basin is reprioritized as a medium- or high-priority basin?
- Must a GSA be formed if portions of a basin are not adjudicated?
- Must a local agency exclude federal and tribal lands from its service area when forming a GSA?
- What are the stakeholder outreach responsibilities for local agencies and GSAs?
- How can private entities participate in a GSA and help develop and implement a GSP?
- When does a GSA get the powers and authorities defined in SGMA?
Frequently Asked Questions: Groundwater Sustainability Agencies (DWR, 1/17/2016)
FAQ: Integrated Hydrologic Modeling and Water Budgets pertaining to the Sustainable Groundwater Management Act and Groundwater Sustainability Plan Regulations
From the Department of Water Resources, Sept. 21, 2017
DWR staff working on Sustainable Groundwater Management Act (SGMA) and the associated Groundwater Sustainability Plan (GSP) Regulations have addressed the following frequently asked questions (FAQs) which focus on the relationship between the responsibility of Groundwater Sustainability Agencies (GSAs) to prepare basinwide water budgets and the potential obligation to model groundwater conditions for their GSPs under SGMA.
1. What integrated hydrologic modeling tools are available from DWR?
2. Are numerical groundwater and surface water models required for GSP development?
3. Are GSAs required to use a DWR model to develop their GSPs?
4. Will DWR use C2VSim to check the water budget of GSAs in the Central Valley, submitted as part of their GSPs? What happens if a GSA’s water budget doesn’t agree with that of C2VSim?
5. Can C2VSim be used to generate a water budget for my GSA area?
6. Does DWR plan to develop a model specific to GSA boundaries?
7. Can C2VSim be adapted by GSAs for their basin?
8. Are GSAs required to submit location specific information for groundwater pumping in the water budgets submitted in their GSP?
9. My GSA has developed our own model. Does DWR intend to compare the water budget from my GSA’s model with DWR’s water budget information?
10. Does my GSA’s water budget need to consider the impacts to adjacent basins?
11. Will DWR use information submitted by GSAs to improve DWR’s water budgets and C2VSim?
FAQ: DWR’s Integrated Hydrologic Models and Water Budget Pilot Projects
From the Department of Water Resources (September 21, 2017)
These frequently asked questions (FAQ) have been addressed by DWR’s staff working on the enhancement of publically available tools, such as the California Central Valley Groundwater-Surface Water Simulation Model (C2VSim) and the Integrated Water Flow Model (IWFM). These tools are being enhanced by the California Department of Water Resources (DWR) to foster and improve understanding of groundwater conditions (including the preparation of water budgets) at the State and regional levels.
Specifically these technical FAQs have been prepared to answer questions regarding:
• Availability and use of DWR’s Integrated Hydrologic Modeling Tools, and
• DWR’s Water Budget Dashboard https://public.tableau.com/profile/salma7330#!/vizhome/RegionalWaterBudget_Basins_Published_4/BaseMaps
Availability and Use of DWR’s Integrated Hydrologic Modeling Tools FAQs
1. What is the Integrated Water Flow Model (IWFM)?
2. What is the California Central Valley Groundwater-Surface Water Simulation Model (C2VSim)?
3. What is the status of C2VSim?
4. What is the Sacramento Valley Groundwater-Surface Water Simulation Model (SVSim)?
5. Does DWR have a San Joaquin Valley-specific model similar to SVSim?
6. What is the element size of DWR’s IWFM applications?
7. Why is there such a large range of element sizes in C2VSim and SVSim?
8. How many layers are in DWR’s IWFM applications?
9. Is DWR planning to develop IWFM-based models for any other parts of California (e.g., the Central Coast Hydrologic Region)?
10. Is there a way to track water quality in IWFM-based models (e.g., C2VSim and SVSim)?
11. Are impacts from subsidence including resulting loss of groundwater storage incorporated into C2VSim? How accurate is the C2VSim subsidence information?
12. Does DWR provide training on IWFM and C2VSim?
DWR’s Water Budget Dashboard FAQs
DWR is developing historical water budgets for all groundwater basins and overlying watersheds in California based on existing models and available data, reports and studies. The water budget estimates will be refined as more data and models become available to DWR through coordination with GSAs and local agencies, and with data and information submitted as part of the GSPs.
1. What is imported water in the Dashboard?
2. What data are used to determine the irrigated lands estimates?
3. How is fallowed land captured within C2VSim and reported in the Dashboard?
4. What is defined as “other inflows” in the Dashboard?
5. Can DWR refine the land use crop data, like breaking out the mature vs. new trees?
6. Is there a way to visualize groundwater elevation contours in the Dashboard?
Fact Sheets and Brochures
Data, modeling tools, and technical assistance
Sustainable Groundwater Management Program Technical Assistance—Data, Tools, and Reports (Fact Sheet from DWR)
All information provided by the Groundwater Exchange and the California Water Library is made available to provide immediate access for the convenience of interested persons. While we believe the information to be reliable, human or mechanical error remains a possibility. Therefore, we do not guarantee the accuracy, completeness, timeliness, or correct sequencing of the information. Neither the Groundwater Exchange nor any of the sources of the information shall be responsible for any errors or omissions, or for the use or results obtained from the use of this information.