Water and Sewer

Groundwater is the major source of potable water for residents. Of the population of 100,546, approximately 67 percent of the residents are serviced by groundwater. Ninety-two percent of these residents are supplied from non-municipal private systems and the Ministry of the Environment's records indicate there are approximately 21,000 water wells in the United Counties.

In the separated municipalities of Brockville, Gananoque and Prescott, both municipal piped water and waste water treatment plants serve residents. Brockville's water supply comes from the St. Lawrence River. The City's single filtration plant filtrates, chlorinates and fluoridates the water before it is delivered to businesses and residents in the City. Sewage in the city is treated by a single pollution control centre.

Name	Contact Number
Cardinal Waste Water & Water Filtration Plant 4000 John St., Cardinal, ON K0E 1E0 Mailing Address: P.O. Box 400, Cardinal, ON K0E 1E0 Website	Tel: 613-657-3765 Fax: 613-657-3182
City of Brockville - Water Department 1 King St. West, Brockville, ON K6V 7A5 Mailing Address: P.O. Box 5000, Brockville, ON K6V 7A5 E-mail: info@brockville.com Website	Tel: 613-342-8772 Fax: 613-342-8780
Gananoque Public Works Department 110 Kate St., Gananoque, ON K7G 2M7 Mailing Address: P.O. Box 221, Gananoque, ON K7G 2M7 Website	Tel: 613-382-4360 Fax: n/a
Town of Prescott Public Works Department 950 Sophia St, Prescott, ON K0E 1T0 E-mail: n/a Mailing Address: P.O. Box 160, 360 Dibble Street, Prescott, ON K0E 1T0 Website	Tel: 613-925-4312 Fax: 613-925-1738