Texas Bioassays and Biomonitoring: What you need to know

Governing Law and Regulations

Surface water quality standards: 30 Texas Administrative Code (TAC) 307.1 to 307.10

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Environmental testing laboratory accreditation and certification: 30 TAC 25.1 to 25.78

Bioassays: 30 TAC 307.3(a)(74)

Definitions: 30 TAC 307.3

Toxic materials: 30 TAC 307.6

Laboratory accreditation: 30 TAC 25.1 and 30 TAC 25.78

Standards for environmental testing laboratory accreditation: 30 TAC 25.9

Accreditation applications: 30 TAC 25.12, 30 TAC 25.14, and 30 TAC 25.54

Laboratory assessments: 30 TAC 25.18

Proficiency testing: 30 TAC 25.20

Accreditation fees: 30 TAC 25.30

Duties and responsibilities: 30 TAC 25.24

Regulatory Agencies

Texas Commission on Environmental Quality (TCEQ)

Texas Department of Health (TDH)

U.S. Environmental Protection Agency (EPA) Region 6

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Texas requires biological monitoring of toxic effluents using federally approved testing methods under provisions of the Texas surface water quality standards. The Texas toxic effluent regulations include a provision authorizing TCEQ to include biomonitoring requirements in permits. Actual testing requirements are decided on a case-by-case basis and are set out in each facility's permit. See the national section BIOASSAYS/BIOMONITORING and the terms of your discharge permit, and contact TCEQ for additional guidance.

The state has also developed regulations for environmental testing laboratory accreditation and certification. Environmental laboratories supplying data for decisions relating to compliance with the Safe Drinking Water Act (SDWA) must be certified by TCEQ.

Analytical data ...

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State Requirements

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Texas Bioassays and Biomonitoring Resources

Bioassays and Biomonitoring Products

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