Notes on the DART Hourly Water Quality Dataset
USACE Data Disclaimer: These data are furnished with the understanding that the Corps of Engineers makes no warranties concerning the accuracy, reliability, or suitability of the data for any particular purpose.
Bonneville Dam: Unless specified otherwise, Lamprey is the combined count from the fish counting windows at Bonneville, reported daily. LPS is the count from the Lamprey Passage Systems (LPS) at Bonneville, reported approximately once a week, usually Wednesdays. The fish counting windows and LPS are mutually exclusive. LPS are located at Bradford Island, Washington Shore and Cascades Island. LPS were opened in 2009 and counting started in June 2010.
Outflow and Spill data are collected at the project (dam). Barometric Pressure, Dissolved Gas, Dissolved Gas Percent, and Temperature (F) are measured at Water Quality Monitoring stations in the forebay and tailwater of most projects and other key locations in the basin. Current monitoring station details (including river mile and lat/lon coordinates) can be found on the Total Dissolved Gas (TDG) Monitoring Station Summary Data Sheet, USACE Columbia Basin Water Management Division.
The USACE initially reported incorrect hourly Bonneville spillway discharge for 2002-2004. As of 18 July 2006, DART is reporting the USACE's Recalibrated Spillway Discharge at Bonneville for this period. The Water Quality reports for BON, CWMW, CCIW, and WRNO include the recalibrated spill at Bonneville.