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PHYSICAL SETTING SOURCE RECORDS SEARCHED <br /> LOCAL/REGIONAL WATER AGENCY RECORDS <br /> FEDERAL WATER WELLS <br /> PWS: Public Water Systems <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 <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 /> Colorado GIS Well Database <br /> Source: Office of State Engineer,Division of Water Resources <br /> Telephone. 303-866-3581 <br /> The GIS Well database includes all wells that the Division of Water Resources permits. <br /> OTHER STATE DATABASE INFORMATION <br /> Oil and Gas Well Locations <br /> Source: Department of Natural Resources <br /> Telephone- 303-894-2100 <br /> RADON <br /> State Database.CO Radon <br /> Source:Department of Public Health&Environment <br /> Telephone:303-692-3090 <br /> Radon Study in Colorado <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 /> OTHER <br /> Airport Landing Facilities: Private and public use landing facilities <br /> Source: Federal Aviation Administration,800-457-6656 <br /> Epicenters: World earthquake epicenters,Richter 5 or greater <br /> Source- Department of Commerce,National Oceanic and Atmospheric Administration <br /> Earthquake Fault Lines: The fault lines displayed on EDR's Topographic map are digitized quaternary faultlines,prepared <br /> in 1975 by the United State Geological Survey <br /> TC5377136.2s Page PSGR-2 <br />