Ground Water Protection Program

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Protecting Ground Water Fact Sheet (En Español)

DPR’s Ground Water Protection Program evaluates and samples for pesticides to determine if they may contaminate ground water, identifies areas sensitive to pesticide contamination and develops mitigation measures to prevent that movement. We also adopt regulations and do outreach to carry out those mitigation measures. The measures are designed to prevent continued movement to ground water in contaminated areas and to prevent problems before they occur in other areas.

  • Program History
    Ground water protection program mandates and activities.
  • Law: The Pesticide Contamination Prevention Act
    The Pesticide Contamination Prevention Act was enacted in 1985 to prevent the further contamination of ground water used for drinking.
  • Regulations
    Ground water protection regulations adopted by DPR.
  • Ground water sampling
    Ground water sampling data, studies, and reports.
  • Identifying potential pesticide contaminants
    How DPR identifies and samples ground water for pesticides with the potential to contaminate ground water.
  • Identifying and protecting ground water protection areas
    How DPR identifies and protects areas that are vulnerable to ground water contamination from the agricultural use of pesticides.
  • Pesticide Contamination Prevention Act review process
    How DPR reviews agricultural pesticides detected in ground water to determine if use can continue and, if so, under what conditions.
  • Publications
    Analytical methods, study protocols, monitoring and study reports, standard operating procedures, environmental fate reviews, program guidance, and mandated reports.

For content questions, contact:
Sheryl Gill
1001 I Street, P.O. Box 4015
Sacramento, CA 95812-4015
Phone: (916) 324-5144