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sbap@tceq.texas.gov

In-House and On-Site Laboratories

Information for domestic wastewater treatment facilities' laboratory sample testing requirements.

Definitions

30 Texas Administrative Code (TAC) 25.2 Exit the TCEQ site
An in-house environmental testing laboratory is a laboratory that provides analytical data to its operator so that the TCEQ can make decisions on:

  • permits or other authorizations issued to the laboratory’s operator;
  • compliance matters and enforcement actions taken concerning the laboratory’s operator; or
  • corrective actions taken by the laboratory’s operator to satisfy statutes, rules, or commission orders.

An on-site environmental testing laboratory is an in-house environmental testing laboratory located at a regulated entity.

Conditions Under Which the Commission May Accept Analytical Data

The commission may accept analytical data provided by a nonaccredited environmental testing laboratory, for any matter under the commission’s jurisdiction relating to permits or other authorizations, compliance matters, enforcement actions, or corrective actions. The laboratory must be an on-site or in-house environmental testing laboratory that is inspected at least every three years by the executive director.

Inspections by the Executive Director

Inspections are performed every three years by TCEQ regional staff during comprehensive compliance investigations in most cases. The investigator will typically use a water quality in-house laboratory compliance investigation checklist. Questions on the checklist include, but may not be limited to:

  • Does the exempt in-house laboratory perform analyses only for its own reporting to the TCEQ?
  • What was the condition of the laboratory at the time of the investigation?
  • Does the laboratory utilize approved methods? 30 TAC 319.11 Exit the TCEQ site
  • Do observations and laboratory records indicate compliance with proper sampling and analysis protocols? 30 TAC 319.11 Exit the TCEQ site
  • Were there any concerns noted regarding analytical parameters evaluated at the time of the investigations? 30 TAC 319.11 Exit the TCEQ site
  • Were there any concerns noted regarding the laboratory’s QA/QC program? 30 TAC 319.6 Exit the TCEQ site and Table 3 in 30 TAC 319.9 Exit the TCEQ site (Self-Monitoring and Quality Assurance Schedules)

Operator Training

Laboratory training is recommended for operators that do not have laboratory training or experience. To obtain a list of approved classroom training providers, contact the Wastewater Licensing staff at 512-239-6133. You can also contact your local Small Business and Local Government Assistance (SBLGA) compliance specialist for training opportunities that may be available in your area through SBLGA’s EnviroMentor Program.