Missouri Groundwater regulations & environmental compliance analysis

Missouri Groundwater: What you need to know

Governing Law and Regulations

Missouri Clean Water Act, Missouri Revised Statutes (Mo. Rev. Stat.) 644.006 to 644.583

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Hazardous waste treatment, storage, and disposal facility (TSDF) groundwater monitoring and protection rules: 10 Missouri Code of State Regulations (CSR) 10 CSR 25-7.264(2)

Groundwater remediation: Mo. Rev. Stat. 644.143

Concentrated animal feeding operations (CAFOs): 10 CSR 20-6.300

Groundwater heat pumps: 10 CSR 20-6.070

Certification and registration of wells: 10 CSR 23-3.060

Sensitive areas for well drilling: 10 CSR 23-3.100

Regulatory Agencies

Missouri Department of Natural Resources (DNR) Air and Land Protection Division Hazardous Waste Program

DNR Water Protection and Soil Conservation Division Water Protection Program

Missouri Clean Water Commission

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Missouri's Clean Water Act and water quality standards establish numerical water quality standards for groundwater. Missouri has adopted the federal regulations for groundwater monitoring at hazardous waste TSDFs with additional monitoring and protection procedures. In addition, the state has specific groundwater remediation regulations, monitoring well installation standards and requirements for heat pumps that use groundwater.

Administration and enforcement. DNR administers and enforces the state's groundwater water quality, monitoring, and protection rules. The Missouri Clean Water Commission provides, assesses, and evaluates scientific and technical information concerning water quality, financial requirements, and the effects of the promulgation of standards, rules, and ...


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