Pesticide Contamination Prevention Act Review Process Triggered by Detection of Hexazinone in Ground Water

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Legal Agricultural Use Determination

Hexazinone detections in ground water were determined to be from legal agricultural use and DPR responded by placing it in the formal detection response process.

Formal Review Process

A formal review process began in November 2010 following detection of hexazinone in ground water.

Notice of detection, PDF (41 kb) (November 2010) listing products containing hexazinone, their registrants, procedures for registrants to request a public hearing before a subcommittee of the Pesticide Registration and Evaluation Committee (PREC), and related information.

  • Summary, PDF (90 kb) of technical and scientific information regarding hexazinone detection
  • Description, PDF (19 kb) of the information that should be in the written report registrants must submit should they request a hearing

Notice of public hearing and agenda, PDF (45 kb): A hearing has been requested by the registrants of hexazinone to review continued use of their products that contain this active ingredient. The hearing will be at 9:00 a.m., Monday, May 9, 2011, in the Sierra Hearing Room at the California Environmental Protection Agency, 1001 I Street, Sacramento. Public testimony will be taken and the meeting will be Webcast

Notice of public meeting and agenda, PDF (51 kb): A deliberative meeting of the PREC subcommittee will be held at 9:00 a.m., Tuesday, June 7, 2011, in the Sierra Hearing Room at the California Environmental Protection Agency, 1001 I Street, Sacramento. Members of the public may attend but no public testimony will be heard. The meeting will be Webcast.

Notice of decision pertaining to hexazinone, PDF (60 kb): Based on the findings and recommendations of the PREC subcommittee, the Director of DPR issued a decision regarding the continued use of hexazinone.

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