Pesticide Contamination Prevention Act Review Process

Back to Ground Water Protection Program
Back to Law

Sign up to receive e-mail updates on DPR’s ground water protection program, including public meeting notices and related information.

When a pesticide active ingredient or other specified ingredient or degradation product of a pesticide is first detected and confirmed in ground water and the contamination found to be due to legal agricultural use (that is, routine agricultural application), the law requires a formal review to determine if use of the pesticide can continue and, if so, under what conditions. The three–step process includes:

  • Notice of Detection - DPR issues a formal notice to the product registrants, who can request a public hearing. If they do not do so, the agricultural products will be cancelled. Each registrant requesting a hearing must submit a report and documentation (detailed under Food and Agricultural Code [FAC] 13150). This material will be posted online for public comment.
  • Public Hearing - If a registrant requests a public hearing, it is held before a subcommittee of DPR’s Pesticide Registration and Evaluation Committee. The subcommittee consists of one member each from DPR, the Office of Environmental Health Hazard Assessment (OEHHA), and the State Water Resources Control Board (SWRCB). Written and oral comments will be accepted at the hearing.
  • Deliberative Subcommittee Meeting - The subcommittee will meet a second time within 30 days after the public hearing. Staff from DPR, OEHHA and the SWRCB may present information to the subcommittee. The meeting is open to the public but no public testimony will be taken. The subcommittee will make findings and recommendations in a report to the DPR Director. The Director can make one of four decisions on actions DPR will take in response to the detection, in accordance with FAC 13150(c).

Pesticide active ingredients in the formal review process

The formal review process has been suspended for the following pesticide active ingredients

  • Alachlor (notice issued March 2016)

The formal review process has been completed for the following pesticide active ingredients


For content questions, contact:
Sheryl Gill
1001 I Street, P.O. Box 4015
Sacramento, CA 95814-4015
Phone: (916) 324-5144
E-mail: Sheryl.Gill@cdpr.ca.gov