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PHYSICALSETTING SOURCE RECORDS SEARCHED <br />LOCAL / REGIONAL WATER AGENCY RECORDS <br />FEDERAL WATER WELLS <br />PWS: Public Water Systems <br />Source: FPA/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: FPA/Office of Drinking Water <br />Telephone: 202-564-3750 <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) <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 <br />Water Well Database <br />Source: Department of Water Resources <br />Telephone: 916-651-9648 <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 />Oil and Gas well locations in the state. <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 />Telephone: 703-356-4020 <br />Sections 307 & 309 of IRAA directed EPA to list and identify areas of U.S. with the potential for elevated indoor <br />radon levels. <br />TC2807476.2s Page A-34 <br />