• City of Madera 

• Madera County Water & Natural Resources

• California Department of Water Resources- SGMA Groundwater Management

• California Department of Water Resources SGMA Portal

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Chowchilla Subbasin:

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The County of Madera is the exclusive GSA for the portion of the Chowchilla Subbasin in the unincorporated area of the County, and not otherwise covered by another public agency. Other GSAs in the Chowchilla Basin include Chowchilla Water District, Triangle T and Merced County.

Meeting dates and contact information for the Chowchilla subbasin GSAs:

• Chowchilla Water District (559)665-3747: 2nd Wednesday of each month at 1:30 p.m.

• Triangle T (559) 665-1788: 2nd Thursday of each month at 1:00 p.m.

• Merced County, email: mercedsgma@woodardcurran.com

  • Stakeholder Committee meets the 4th Monday of every month starting at 9:30 a.m.

  • Coordinating Committee meets the 4th Monday of every month starting at 1:30 p.m.

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Delta- Mendota Subbasin:

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The Delta-Mendota Subbasin exists within the larger San Joaquin Valley Groundwater basin, as described in the California Department of Water Resources Bulletin 118. The County of Madera is the exclusive GSA for the portion of the Delta-Mendota Subbasin in the unincorporated area of Madera County, and not otherwise covered by another public agency.

Additional GSAs in the Delta-Mendota Subbasin are Aliso Water District and The Exchange Contractors Water Authority.

Meeting dates for the Delta-Mendota subbasin GSAs:

• Aliso Water District ((559) 659-1483): 4th Tuesday of every quarter at 2 p.m.

• The Exchange Contractors Water Authority (209-827-8616): 1st Friday at 8:00 am

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Madera Subbasin:

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The Madera Subbasin exists within the larger San Joaquin Valley Groundwater basin, as described in the California Department of Water Resources Bulletin 118. The County of Madera is the exclusive GSA for the portion of the Madera Subbasin in the unincorporated area of the County, and not otherwise covered by another public agency. There are multiple GSAs within the Madera Subbasin, including the Madera County GSA, City of Madera GSA, Madera Irrigation District, Root Creek Water District, Madera Water District, Gravelly Ford Water District, New Stone Water District. If you’re not sure what GSA you are in, use this interactive map from Madera Irrigation District.

Meeting dates for the Madera Subbasin GSAs:

• City of Madera GSA (559)661-5430: 1st Wednesday of each month at 6:00 p.m.

• Gravelly Ford Water District: 3rd Monday of each month

• Madera County (559)675-7703, xt 2265: listed here

• Madera Irrigation District (559)673-3514: 3rd Tuesday of each month

• Madera Water District (559)674-4944: 2nd Wednesday of every month at 9 a.m at MWD office

• New Stone Water District, email: rskinner@lionraisins.com: Meetings held quarterly, please email for date.

• Root Creek Water District (559)326-2222: 2nd Monday of each month at 11:00 a.m.