Mississippi Underground Injection Wells regulations & environmental compliance analysis

Mississippi Underground Injection Wells: What you need to know

Governing Law and Regulations

Underground injection control (UIC): 11 Mississippi Administrative Code (Miss. Admin. Code) Part (Pt.) 6, Chapter (Ch.) 1, Rule 1.1.4.K

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On-site wastewater treatment: 15 Mississippi Department of Health (MS DOH) Pt. 18 Subpart 77

Regulatory Agencies

Mississippi Department of Environmental Quality (DEQ) Office of Pollution Control

DEQ Office of Land and Water Resources

Mississippi Oil and Gas Board (Board)

Mississippi Department of Health (DOH)

U.S. Department of Agriculture

Natural Resource Conservation Service (NRCS)

U.S. Environmental Protection Agency (EPA) Region 4

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Mississippi has been delegated authority to administer the underground injection control (UIC) program in the state. Mississippi has incorporated by reference the federal permit-by-rule option for hazardous waste underground injection wells. Wells that meet the permit-by-rule requirements (including the requirement that the facility have an underground injection well permit under the Mississippi Drinking Water Law of 1976 (MDWL)) are deemed to have a hazardous waste disposal facility permit and are therefore not required to submit a permit application.

In addition to the permit-by-rule requirements, owners and operators of underground injection wells in Mississippi must comply with the state's MDWL regulations applicable to the permitting, design, construction, and operation of underground injection wells. The state's MDWL regulations incorporate the federal Safe Drinking Water Act of 1974 regulations and include additional provisions that make the Mississippi ...

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