Tri-County Septic Tank Svc 7 years ago ID: #3815 Listed In : Plumbers PO Box 635, Lynchburg. VA, USA 24505 (434) 525-2568 Business Description Tri-County Septic Tank Svc, Address : PO Box 635, Lynchburg. VA, USA 24505, Phone : (434) 525-2568 Reviews & Ratings Write a Review No Review. Please login / register to add your review.