Indiana Stormwater-Municipalities regulations & environmental compliance analysis

Indiana Stormwater-Municipalities: What you need to know

Governing Law and Regulations

National Pollutant Discharge Elimination System (NPDES) permit program: 327 Indiana Administrative Code (IAC) 5-2-1 to 5-2-23

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Municipalities: 327 IAC 15-13-1 to 15-13-22

Individual permits: 327 IAC 5-3-2

Regulatory Agencies

Indiana Department of Environmental Management (IDEM)Office of Water Quality (OWQ)

Local county soil and water conservation district offices

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. Indiana has authority from the U.S. Environmental Protection Agency (EPA) to administer the National Pollutant Discharge Elimination System (NPDES) program, which includes stormwater discharges associated with municipal separate storm sewer systems (MS4s). Indiana issues an individual MS4 permit to Indianapolis and general permits for most other Phase II MS4 entities. See the national section STORMWATER— MUNICIPALITIES for more information on the federal MS4 permitting program.

Administration and enforcement. IDEM's OWQ is responsible for the administration of the stormwater discharge permit rules in Indiana. A permittee is required to report any noncompliance to IDEM's Office of Enforcement within 1 business day from the time it has knowledge of noncompliance.

State Requirements

MUNICIPALITIES

327 IAC 15-13-1 to 15-13-22

The state's MS4 rule applies to the portions of an urban federal, state, municipal, county, public, or private entity stormwater conveyance system that are not combined with sewage conveyances. A regulated conveyance system includes roads with drains, municipal streets, catch basins, curbs, gutters, ...


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