T.W.P.C.A. - Sewer Information

The Thompson Water Pollution Control Authority (T.W.P.C.A.) operates the sanitary sewer system in a limited area of town.

Sewer Usage Fees are due in two (2) installments. The first installment is due October 1st, and you have until November 1st to pay on-time. This covers usage from July 1 through December 31. The second installment is due on April 1st and you have until May 1st to pay on-time.This covers usage from January 1 through June 30.

The sewer bills are mailed once each year in October; no additional mailings will be sent for the April installment. Thompson uses a flat-rate billing system which is currently $440.00 per unit annually.

Payment Options:

  • In the Tax Collector's Office, we accept Cash or Checks (made payable to T.W.P.C.A.) It is preferable to pay multiple bills on one check.
  • Pay by mail via U.S.P.S. (use PO Box 845, N. Grosvenordale, CT 06255) or Overnight Delivery via UPS or FedEx (use 815 Riverside Drive, N. Grosvenordale, CT 06255). We accept Postmark as date of payment.
  • At this time neither credit cards nor on-line payments are accepted for T.W.P.C.A.