Bash J., Berman C. and Bolton S. (2001). Effects of Turbidity and Suspended Solids on Salmonids. Center for Streamside Studies, University of Washington.

California Regional Water Quality Control Board, North Coast Region (1997). Water Quality Control Plan for the North Coast Region. Santa Rosa, CA.

California Regional Water Quality Control Board, Colorado River Basin Region (2002). Water Quality Control Plan for the Colorado River Basin Region 7.

Hoopa Valley Tribal Environmental Protection Agency (2001). Water Quality Control Plan for the Hoopa Valley Indian Reservation. Hoopa, CA.

Karuk Tribe Department of Natural Resources (2002). Water Quality Control Plan. Orleans, CA.

Sullivan K., et al. (2000). An Analysis of the Effects of Temperature on Salmonids of the Pacific Northwest with Implications for Selecting Temperature Criteria. Portland, OR.

U.S. Environmental Protection Agency (1999). 1999 Update of Ambient Water Quality Criteria for Ammonia. Office of Water, Washington, D.C.

U.S. Environmental Protection Agency (2002). National Recommended Water Quality Criteria: 2002. Office of Water, Washington, D.C. [Res. 04-46 § 6, adopted, 8/25/2004.]