Emergency Response

ORSANCO works to assure that water utilities are sufficiently warned about upstream spills. The goal of the Emergency Response Program is to protect Ohio River public water supply intakes from […]

Because fish and other aquatic life depend on dissolved oxygen (DO) in water, ORSANCO monitors DO conditions at 13 Ohio River locations. From May through October, ORSANCO receives DO data […]

During the contact recreation season (April-October), ORSANCO monitors bacteria levels in six urban areas along the Ohio River, which are: Pittsburgh, Wheeling, Huntington, Cincinnati, Louisville, and Evansville. Samples are collected […]

ORSANCO initiated clean metals monitoring in 1998 to allow metals analysis at very low levels. Samples are collected bimonthly from the 16 Ohio River stations and analyzed for 25 metals, […]

The Bimonthly Water Quality Sampling Program is ORSANCO’s long-term water quality monitoring program for the Ohio River. The monitoring program began in 1975 and has a continuous record through the […]

In March 1999, ORSANCO began coordinating an algae monitoring pilot program to address concerns with increased algal blooms and taste and odor problems with Ohio River drinking water. Beginning July […]

A TMDL, or total maximum daily load, determines how much of a pollutant a waterbody can assimilate and still meet its water quality goals. It assigns allowable quantities of that […]