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PHYSICAL SETTING SOURCE RECORDS SEARCHED <br /> LOCAL/REGIONAL WATER AGENCY RECORDS <br /> FEDERAL WATER WELLS <br /> PWS: Public Water Systems 1 <br /> Source: EPA/Office of Drinking Water <br /> Telephone: 202-564-3750 <br /> Public Water System data from the Federal Reporting Data System. A PWS is any water system which provides water to at (' <br /> least 25 people for at least 60 days annually. PWSs provide water from wells, rivers and other sources. <br /> PWS ENF: Public Water Systems Violation and Enforcement Data <br /> Source: EPA/Office of Drinking Water (' <br /> Telephone: 202-564-3750 11 <br /> Violation and Enforcement data for Public Water Systems from the Safe Drinking Water Information System (SDWIS)after <br /> August 1995. Prior to August 1995,the data came from the Federal Reporting Data System(FRDS). <br /> USGS Water Wells: USGS National Water Inventory System(NWIS) 1 <br /> This database contains descriptive information on sites where the USGS collects or has collected data on surface <br /> water and/or groundwater.The groundwater data includes information on wells, springs, and other sources of groundwater. <br /> STATE RECORDS f ' <br /> Water Well Database <br /> Source: Department of Water Resources <br /> Telephone: 916-651-9648 <br /> I <br /> California Drinking Water Quality Database <br /> Source: Department of Health Services <br /> Telephone: 916-324-2319 <br /> The database includes all drinking water compliance and special studies monitoring for the state of California <br /> since 1984. It consists of over 3,200,000 individual analyses along with well and water system information. <br /> OTHER STATE DATABASE INFORMATION <br /> California Oil and Gas Well Locations <br /> Source: Department of Conservation <br /> Telephone: 916-323-1779 <br /> RADON <br /> State Database: CA Radon <br /> Source: Department of Health Services <br /> Telephone:916-324-2208 <br /> Radon Database for California <br /> Area Radon Information <br /> Source: USGS <br /> Telephone: 703-356-4020 <br /> The National Radon Database has been developed by the U.S. Environmental Protection Agency <br /> (USEPA)and is a compilation of the EPA/State Residential Radon Survey and the National Residential Radon Survey. <br /> The study covers the years 1986- 1992.Where necessary data has been supplemented by information collected at <br /> private sources such as universities and research institutions. <br /> EPA Radon Zones <br /> Source: EPA <br /> i <br /> Telephone: 703-356-4020 j <br /> Sections 307 8 309 of IRAA directed EPA to list and identify areas of U.S.with the potential for elevated indoor <br /> radon levels. <br /> I <br /> TC1870649.2s Page A-26 <br />