The City of Trinidad water and sewer system is set up as a self-supporting utility. In other words, all of the money received from water and sewer bills is used to pay the operating costs for the system. Water and sewer payments are not used for any other service the city provides. Your water and sewer bills are based on the amount of water you use. Every customer has a water meter that separates the city's water system from his/her private plumbing system. Once the water passes through the meter, the customer has purchased it and it no longer belongs to the city. The meter reading crew visits every meter each month to record the reading on the meter. This determines the amount of water that has been used and the amount that needs to be billed.