1. 1 Zone 4 Line A Rand Eads RiverMetrics LLC www.rivermetrics.com rivermetrics@gmail.com 503-435-7516 Sources Pathways and Loadings Workgroup May 14, 2008 Item #2b

2. 2 HY 2008 Summary Preliminary Data Moved station to downstream end of culvert due to delayed completion of construction upstream Data collection began on 1/31/08 Low precipitation: 2.15 inches (3 months) 13 storm events Max turbidity/SSC: 892 TU/358 mg/L Max stage 2.91 ft. (3.41 ft 1/4/08 manual) 15 SSC pumped samples processed to date, 33 unprocessed, budgeted for 100 Item #2b

3. 3 Shelter, Data Logger, Pumping Sampler, Rain Gage, Solar Panel, Cellular Telemetry Bed-Mounted Sampling Boom Staff Plate Item #2b

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