Appendix 2				
"Percent recoveries of anthropogenic organic compounds in quenched and nonquenched finished-water spiked samples from surface-water supplies collected during Source Water-Quality Assessment sampling, 2004-06"				
Percent recoveries are presented by use (or source) groups as defined in table 2.  Percent recoveries for compounds within each of the 13 groups are presented in one worksheet (Surface-water data) with a filter attached to each column header within this spreadsheet.				
"Data are presented within each worksheet in a similar order.  The finished water sample types are listed in the first column. Black text indicates quenched samples, and blue text indicates nonquenched samples.  Quenched is defined as preservation of the sample with the addition of ascorbic acid.  The percent recoveries presented in the worksheets are not rounded; recoveries are presented as calculated."				
Acronyms used in this spreadsheet:				
ACFB	Apalachicola-Chattahoochee-Flint River Basin			
ALBE	Albemarle-Pamlico Drainage			
NVBR	Nevada Basin and Range			
PODL	Potomac River Basin and Delmarva Peninsula			
TRIN	Trinity River Basin			
UMIS	Upper Mississippi River Basin			
WILL	Willamette Basin			
**For more information and description concerning the USGS method code refer to:				
http://nwis.waterdata.usgs.gov/nwis/help/?read_file=qw_meth&format=html_table