Twitchell Management Authority Documents
- Santa Maria Valley Management Area 2021 Annual Report of Hydrogeologic Conditions, Water Requirements, Supplies, and Disposition
- Santa Maria Valley Management Area 2020 Annual Report of Hydrogeologic Conditions, Water Requirements, Supplies and Disposition
- Santa Maria Valley Management Area 2019 Annual Report of Hydrogeologic Conditions, Water Requirements, Supplies and Disposition
- Santa Maria Valley Management Area 2018 Annual Report of Hydrogeologic Conditions, Water Requirements, Supplies and Disposition
- Santa Maria Valley Management Area 2017 Annual Report of Hydrogeologic Conditions, Water Requirements, Supplies and Disposition
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