Donaldson Crossroad
Water Pollution Control Plant

The current plant has undergone numerous expansion and upgrades through the years. The most recent completed in 1999, increased the hydraulic capacity (the amount of wastewater it can treat) up to 1.2 million gallons per day.

The treatment process is identical to that of the Brush Run WPCP with the exception that we are not required to remove the TRC before discharging the final effluent to Chartiers Creek. We are required to not exceed a monthly chlorine residual of 1.1 mg/l, which can be achieved without the need for de-chlorination. The digested sludge from the digesters is removed in liquid form and transported, via tank truck, to the Brush Run WPCP for processing. The processing includes residence time in the Brush Run digesters prior to being processed through the belt filter press and ultimate disposal at a sanitary landfill. This plant is monitored through a combination of personnel and an automatic monitoring system.

This plant also performs well within the limits set in its NPDES Discharge Permit:

1 One milligram per liter is equal to 1 minute in 2 years.

This plant,is monitored through a combination of personell and automatic monitoring system.