Table 1.

Data sets that were combined to calculate the XC95 values for fish in Level III Ecoregions 67, 68, 69, and 70.

Data set	Conducted or collected by	Sampling period	No. of sites
1. The Mid Atlantic Highlands Assessment	U.S. EPA’s Environmental Monitoring and Assessment Program	1993–1996	172
2. The Mid Atlantic Integrated Assessment	U.S. EPA’s Environmental Monitoring and Assessment Program	1997–1998	119
3. Fish bioassessment data	Kentucky Department for Environmental Protection, Division of Water stream bioassessment program	1991–2004	285
4. Fish and chemistry data	Stauffer and Ferreri [29] and Bryant, McPhilliamy and Childers [37] for the Programmatic Environmental Impact Statement for mountaintop mining and valley fills	1999–2001	34
5. Fish and chemistry data	U.S. EPA’s Regional Applied Research Effort program in cooperation with the West Virginia Department of Natural Resources [27]	2001–2002	118
6. Fish bioassessment data	West Virginia Department of Environmental Protection pilot program	2007–2009	43
7. Fish bioassessment data	Ohio Environmental Protection Agency, Division of Surface Water	1999–2013	593
8. Fish assessment data	Pennsylvania Fish and Boat Commission (PFBC)	1990–2014	2,101