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Public Water System Monitoring Plans

How to comply with requirements for monitoring plans for public water systems in Texas. Link to sample plan and instructions.

All public water systems are required to develop a monitoring plan. Transient noncommunity systems must develop a monitoring plan if any treatment besides disinfection is present. Otherwise, for a transient noncommunity system with only disinfection, the bacteriological site plan counts as their monitoring plan.

Systems that treat surface water or groundwater under the direct influence of surface water (GUI) are required to send a copy of their monitoring plan to the TCEQ for review and approval.

Systems that use groundwater or purchased water are not required to send a copy of the monitoring plan to TCEQ, but must must keep the plan on file for review by the TCEQ inspector during routine comprehensive compliance investigations (sanitary survey), or must provide a copy of the plan to TCEQ upon request.

A newly revised detailed guidance is available to help you prepare your monitoring plan.