Water Quality Trends

Ohio River Water Quality Trends

In addition to reporting the current status of water quality, from time to time ORSANCO completes trend assessments of its historical water quality data. The most recent trends assessment was completed on water quality data for the Commission’s Bimonthly and Clean Metals Sampling Programs from 1990 to 2002 for the Clean Metals and to 2007 for the Bimonthly Sampling parameters.


Water Quality Trends Report Download