108 • GROUND WATER PROTECTION AND THE ENDANGERED SPECIES ACT
THIS CHAPTER DISCUSSES THE
laws and regulations that have been established to prevent pesticide contamination of the ground water aquifers in California that may be used for drinking water supplies. It also covers the federal Endangered Species Act, enacted in 1973 to protect endan- gered and threatened plant and animal species and to conserve the ecosystems they depend upon for survival.
Ground Water Protection
Ground water contamination, resulting from normal, registered use of pesticides (Figure 9-1), can cause unreasonable risks to human health and the environment. Preventing contamination of ground water resources is a shared goal of DPR, the California EPA, and the U.S. EPA, who work together to design programs to stop further ground water contamina- tion before it happens and to keep existing problems from worsening.
Chemicals on the Ground Water Protection List
The Ground Water Protection List identifies pesticides labeled for agricul- tural, outdoor institutional, or outdoor industrial use that have the potential to pollute ground water. This list is found in the California Code of Regulations, Title 3, Section 6800(a) and (b), and it includes some pesticides that have been detected in ground water or soil in California. You must obtain a restricted materials permit to possess and use pesticides containing the active
ingredients in CCR 6800(a). A list of these active ingredients is available on the DPR web site at www.cdpr.ca.gov.
Pesticide Management Zone (PMZ)
A Pesticide Management Zone (PMZ) is a geographical area of approximately one square mile that is sensitive to ground water pollution. PMZs have been established in Butte, Colusa, Contra Costa, Fresno, Glenn, Kern, Los Angeles, Madera, Mendocino, Merced, Orange, Placer, Riverside, San Bernardino, San Joaquin, Solano, Stanislaus, Tehama, Tulare, Ventura, and Yolo Counties. A list of the established PMZs in California is available through the local county agricultural commissioner or DPR. Contact them for the latest information on PMZs.
Ground Water Protection Restrictions
You must obtain a restricted materi- als permit to possess or use pesticides containing atrazine, simazine, bromacil, diuron, prometon, or norflurazon when you intend to use them for allowed agricultural, outdoor institutional, or outdoor industrial uses within a PMZ. However, to obtain a restricted materials permit for allowed uses of pesticides containing any of these chemicals in a PMZ, you must submit a ground water protection advisory with your restricted materials permit application. These advisories must be written by a licensed Agricul- tural Pest Control Adviser who has completed the Ground Water Protec-