Mill Creek Cleaner, But Some E. Coli Remains
The City of The Dalles has removed notices posted along Mill Creek warning of E. Coli contamination, but is also reminding people the water still contains E. Coli and other pathogens from various sources. Repairs to a sewer main last week drastically reduced the amount of E. Coli in Mill Creek, with tests Thursday finding 157 organisms per 100 milliliters of water, way down from the over 2400 prior to the repair, but still above the chronic water quality standard of 126. City officials say monitoring last year by the Wasco County Soil and Water Conservation District showed 30 percent of the samples collected from Mill Creek upstream from the “mystery pipe” that was dispensing large amounts of contaminated water into the creek contained E. Coli from sources outside the City at levels greater that acute water quality standard of 406 per 100 milliliters. Care should always be taken in contacting surface waters, and the water should never be consumed without treatment.