Indiana Groundwater regulations & environmental compliance analysis

Indiana Groundwater: What you need to know

Governing Law and Regulations

Indiana water quality standards: 327 Indiana Administrative Code (IAC) 2-1-7 to 2-2-1

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Groundwater protection: Indiana Code (IC) 17-13-18-17-1 to IC 17-13-18-17-7

National Pollutant Discharge Elimination System (NPDES) permits; wastewater discharges associated with groundwater remediation: 327 IAC 15-10-1 to 15-10-10

Water discharge permits: 327 IAC 15-10-3

Notice of intent (NOI): 327 IAC 15-10-5

Monitoring and limits: 327 IAC 15-10-7

Permit coverage: 327 IAC 15-10-7

Landfill monitoring: 329 IAC 10-21-1 to 329 IAC 10-21-10

Groundwater protection: IC 17-13-18-17-1 to IC 17-13-18-17-3

Groundwater wells: 312 IAC 13-3-2 and 312 IAC 13-2-6

Regulatory Agencies

Indiana Department of Environmental Management (IDEM) Office of Land Quality

IDEM Office of Water Quality

Indiana Department of Natural Resources (DNR) Division of Water

Indiana Department of Health (DOH)

See ADDRESSES & CONTACTS for addresses and telephone numbers.

See national section for basic information and federal regulations.

Comparison: State vs. Federal

Rules. Indiana does not have a specific groundwater program; instead groundwater is split between agencies depending on the nature of the groundwater issue. Contamination and groundwater plume studies are covered by IDEM's regulations for facilities regulated under the hazardous waste management program, which are identical to the federal regulations. Water wells, construction of wells, and groundwater as a natural resource are covered by DNR.

Indiana's groundwater protection regulations for solid (nonhazardous) waste facilities are part of the IDEM solid waste management program for siting and operation of municipal landfills and disposal areas. For additional information, see the state ...


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