DataSourceCode	Agency	ContactPerson	ContactEmail	ContactTelNo	DateOfRetrieval	SourceDescription
CDC	Center for Disease Control	Alden Henderson	akh0@cdc.gov	(770) 488-7294	December 1998	Data released upon approval from cooperating States under condition of nondisclosure of well owner name or well location (other than county code).
CDHE	Colorado Dept of Public Health and Environment	Brad Austin		(303) 692-3572	July 1998	Dataset transmitted to USGS as Excel spreadsheet during summer of 1998. Additional well information added to database by Christine Marshall by using data from well records at Colorado State Engineer's Office. Final Excel spreadsheet version of database contains additional site information variables.
CNBR	U.S. Geological Survey, Central Nebraska NAWQA Study	Ron Zelt	rbzelt@usgs.gov	(307) 778-2931	August 1992	Datasets were compiled for Central Nebraska NAWQA Study.  Data provided in INFO format from Data General UNIX machine.
GMD2	Equus Beds Groundwater Management District No. 2	Mike Dealy		(316) 835-2224	October 1998	Provided District MS Access water-quality database.
NMDW	New Mexico Environment Department-Drinking Water Bureau	Richarc Asbury	rkasbury@roadrunner.com		November 1998	Data from drinking water monitoring system retrieved and sent via email as asci delimited files.
NURE	USDOE via U.S. Geological Survey-Geologic Division	Steve Smith	smsmith@usgs.gov	(303) 236-1192	December 1998	Data retrieved from WWW site at minerals.cr.usgs.gov/nure/index.htm.  Data for KS, CO, OK, TX, NM not available yet.
NWSL	Nebraska Water Sciences Laboratory	Mary Exner		(402) 472-7547	November 1998	Dataset of NWSL Clearinghouse data transmitted via ftp by Patrick Larson on December 1998.
OKDQ	Oklahoma Department of Environmental Quality	Jay Wright	jay.wright@deqmail.state.ok.us	(405) 702-6108	December 1998	Retrievals done by Jay Wright from DEQ water quality database and transmitted to me as dbf files.
STOR	USEPA STORET database	Dave Litke	dwlitke@usgs.gov	(303) 236-4882	Summer 1998	STORET data retrieved from commercial CD-ROM purchased from Hydrosphere Data Products.  Data on the disk were from STORET retrievals done in June 1998. Only data in STORET  for use in this database were data from the Nebraska Department of Health and Environment.
TWDB	Texas Water Development Board	Janie Hopkins	jhopkins@twdb.state.tx.us	(512) 936-0841	October 1998	Dataset transmitted via email.  Database also available on TWDB Internet site: http://www.twdb.state.tx.us/rio/water/disclaimer.htm
USGS	U.S. Geological Survey National Water Information System	Dave Litke	dwlitke@usgs.gov	(303) 236-4882	August 1998	Dataset retrieved from USGS-WRD National Water Information System (NWIS) by USGS workers in District offices, and forwarded to Dave Litke for compilation into database.
