In late June, routine sampling conducted through the Oregon Beach Monitoring Program found readings at two freshwater outfalls exceeded the state’s recreational water standard of 130 mpn, or most probable number, a testing method used to estimate the number of colony forming units of bacteria.
The Chisana Creek outfall at Tolovana State Park registered at 465 mpn, more than three times what is considered safe by the U.S. Environmental Protection Agency. The Ecola Court outfall pipe hit 134 mpn. Ingesting bacteria contaminated water can result in illness.
Bacteria levels appear to have steadied for now. But questions persist about why, after almost a decade, Cannon Beach continues to see higher levels of bacteria at several beach outfalls.
Read the full article at The Daily Astorian.