Publication Summary

As part of the Yakima Area Creeks Fecal Coliform Total Maximum Daily Load Study, the Department of Ecology conducted a series of field surveys from December 2004 through March 2006. This report presents data collected during those surveys, including both laboratory data and field water quality and flow data. A summary of the quality assurance/quality control analysis of the data also is provided. Detailed analysis of this data will be provided in a Water Quality Improvement Report, yet to be completed.

This report summarizes water quality and streamflow data collected by the Department of Ecology from December 2004 through March 2006 for the Yakima Area Creeks Fecal Coliform Total Maximum Daily Load (TMDL) Study. The final TMDL report will be published later this year.

The study was conducted on Cowiche Creek, Moxee Drain, and Wide Hollow Creek, three tributaries to the Yakima River. These tributaries are located within or near the city of Yakima.

Field data collected include pH, conductivity, dissolved oxygen, temperature, and streamflow. Laboratory data include fecal coliform, E. coli, percent KES (Klebsiella, Enterobacter, and Serratia), chloride, total suspended solids, and turbidity. In addition, this data summary includes an analysis of quality assurance/quality control data.

These data will be used by Ecology to (1) develop reach-specific fecal coliform loading capacities for each creek, and (2) estimate fecal count and load reductions necessary to meet these capacities.

Link to EIM data for User Study ID YUTTMDL