This Week's E. coli Test Results Are In! We saw some rain earlier this week, which led to stormwater runoff, and that means higher E. coli levels at several sites. Creeks have HIGH levels of E. coli bacteria Little Falls Watershed Alliance Water Action in Maryland and DC Escherichia coli in the Niger River: Links to environmental variables and anthropogenic activities in Niamey city, Niger Escherichia coli in the Niger River: Links to environmental variables and anthropogenic activities in Niamey city, Niger