- Office Hours: Monday - Friday 8am to 4:00pm
 - Office Number: (701) 345-8595
 - Fax Number: (701) 345-8419
 
Tri-County Water District 
205 5th St or PO Box 187
Petersburg, ND 58272
Tri-County Water District 
205 5th St or PO Box 187
Petersburg, ND 58272