• About DPR
• Contact Us
• Customer Service Survey
• Join E-Lists

Ground Water Protection List Monitoring

Back to Ground Water Protection Program Menu

Companies seeking to register new agricultural use pesticide active ingredients must send DPR certain chemical and environmental fate data. DPR scientists evaluate this data to determine if the compounds are persistent and mobile in the soil. If they are persistent and mobile and their pesticide labels specify certain application methods, DPR adds these compounds to the Ground Water Protection List (California Code of Regulations, Title 3, Section 6800[b]). DPR monitors for these active ingredients to better understand their behavior in the environment and to determine if they threaten ground water resources.

Regulation

• Ground Water Protection List (3CCR section 6800[b]) – Registered agricultural use pesticides that have the potential to pollute California’s ground water due to their chemical characteristics and intended uses.
  • Guidelines for Identifying Pesticides to be Added to the Groundwater Protection List - 3CCR section 6800[b] (PDF, 66 kb)
• GWPL Monitoring Reports
  • GWPL Study 2006-2007 (PDF, 124 kb)  –  Napropamide and Oryzalin
  • GWPL Study 2005-2006 (B) (PDF, 235 kb)  –  Aldicarb, Aldicarb Sulfone, and Aldicarb Sulfoxide
  • GWPL Study 2005-2006 (A) (PDF, 186 kb)  –  S-Ethyl Dipropylthiocarbamate (ETPC)
  • GWPL Study 2003-2004 (PDF, 631 kb)  –  Imidacloprid and Three Of Its Degradates (March 25, 2004)
  • GWPL Study 2002-2003 (PDF, 811 kb)  –  Hexazinone and Three Of Its Degradates (March 12, 2003)
  • GWPL Study 2001-2002 (PDF, 987 kb)  –  Fenamiphos, F. Sulfoxide, and F. Sulfone (June 30, 2002)
  • GWPL Study 2000-2001 (PDF, 1.10 mb)  –  Alachlor, Metolachlor And Two Degradates Of Each (May 6, 2002)
  • GWPL Study 1998-1999 (PDF, 446 kb)  –  Napropamide and Oryzalin
  • GWPL Study 1997-1998 (PDF, 370 kb)  –  Hexazinone
  • GWPL Study 1996-1997 (PDF, 424 kb)  –  Norflurazon
  • GWPL Study 1995-1996 (PDF, 666 kb)  –  Carbofuran, Metalaxyl, Oxydemeton-Methyl, and Propyzamide
  • GWPL Study 1994-1995 (PDF, 351 kb)  –  Azinphos-Methyl, Diazinon, and Fonofos
  • GWPL Study 1993-1994 (PDF, 267 kb)  –  2,4-D, Cyanazine, Fenamiphos, Hexazinone, And Metribuzin
  • GWPL Study 1992-1993 (PDF, 339 kb)  –  2,4-D, Diazinon, Molinate, Cyanazine, Metribuzin, and Hexazinone
  • GWPL Study 1991-1992 (PDF, 104 kb)  –  Butylate, Cycloate, EPTC, and MITC

For content questions contact:
Mark Pepple
1001 I Street, P.O. Box 4015
Sacramento, CA 95812-4015
Phone: (916) 324-4086
E-mail: mpepple@cdpr.ca.gov