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- Madera County Economic Development Commission (EDC)

- Save Our Water Rebates (Toilets & Turf)

- Madera County Water/RWMG

- California Department of Water Resources (DWR)

- Madera County Library

- theRanchos.com

- Madera Tribune

- Liberty Groves

- https://muckrack.com/marek-warszawski/articles

- A Reality Check on Groundwater Overdraft in the San Joaquin Valley