 This system was eventually purchased by the city, which now allows the Sheridan Water and Sewer Department to operate the system independently of city funds.Today, Sheridan is capable of treating groundwater obtained from five wells at a rate of 4.5 million gallons (17 million liters) per day (MGD/MLD).Sheridan's wastewater treatment facility is located at the end of Gatzke Drive and discharges treated effluent to Big Creek in accordance with the permit granted by the Arkansas Department of Environmental Quality.