Ohio Bioassays and Biomonitoring: What you need to know

Governing Law and Regulations

Water use designations and criteria: Ohio Administrative Code (OAC) 3745-1-07

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Bioassays: OAC 3745-1-07

Laboratory certification program regulations: OAC 3745-89-01 to 3745-89-10

General requirements: OAC 3745-89-03

Interim authorizations: OAC 3745-89-09 and OAC 3745-89-10

Regulatory Agencies

Ohio Environmental Protection Agency (OEPA) Division of Surface Water Division of Drinking and Ground Waters

OEPA Division of Environmental Services (DES) Laboratory Certification Section

U.S. Environmental Protection Agency (EPA) Region 5

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Ohio has federally approved standards for biological testing that are used to determine the toxicity of state waters. Testing methods, however, are likely to be detailed specifically in the permit issued by OEPA to a particular facility.

The state has also developed laboratory certification regulations for drinking water laboratories.

Administration and enforcement. OEPA's Division of Surface Water is responsible for the administration and enforcement of all the state's water pollution control programs, including those relating to toxic monitoring. The Laboratory Certification Program is managed by two OEPA divisions. DES's Laboratory Certification Section is responsible for the operation of the program, and the Division of Drinking and Ground Waters administers the program and issues certificates.

State Requirements


OAC 3745-1-07

OEPA routinely conducts biological and water quality surveys, or bioassays, on a systematic basis statewide. Biological, chemical, and physical monitoring ...

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State Requirements

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Ohio Bioassays and Biomonitoring Resources

Bioassays and Biomonitoring Products

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