water quality sampling, water sample analysis, annual pollutant load calculations
A water quality sampling station was installed at the Arkansas Highway 45 bridge on the White River just above Beaver Lake in 2002. This station is coordinated with a USGS gauging station at the same location. This station is instrumented to collect samples at sufficient intervals across the hydrograph to accurately estimate the flux of total suspended solids, nitrogen and phosphorus into the upper end of Beaver Lake from the White River. The West Fork of the White River is listed on Arkansas' 1998 303d list as impaired from sediment. The Upper White was designated as the states highest priority watershed in the 1999 Unified Watershed Assessment. Accurate determination of stream nutrients and sediment is critical for future determinations of TMDLs, effectiveness of best management practices and trends in water quality.
Nelson, Marc; Cash, L. Wade; Trost, Keith; and Purtle, Jennifer. 2005. Water Quality Sampling, Analysis and Annual Load Determinations for Nutrients and Sediment at the Arkansas Highway 45 Bridge on the White River Just Above Beaver Lake. Arkansas Water Resources Center, Fayetteville, AR. MSC328. 9