Indiana's IDEM administers statewide NPDES stormwater permitting under IC 13-18-3 and 327 IAC 15, requiring MS4 communities, industrial sites, and dischargers to obtain coverage. Local programs must implement state minimum measures.
Under IC 13-18-3 and Indiana Administrative Code Title 327 Article 15, IDEM issues general NPDES stormwater permits regulating municipal separate storm sewer systems (MS4s), construction sites disturbing one or more acres (Rule 5), and industrial activity (Rule 6). MS4 entities must implement six minimum control measures: public education, public involvement, illicit discharge detection and elimination, construction runoff control, post-construction stormwater management, and pollution prevention. Local stormwater ordinances must meet or exceed IDEM standards. Cities cannot reduce protections below the state floor, though they may add stricter local water-quality criteria.
Discharging without an NPDES permit, failing to file Notice of Intent, or violating permit terms can trigger civil penalties up to $25,000 per day per violation under IC 13-30-4 and federal Clean Water Act enforcement.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Lake County, IN
Backyard composting of yard and food scraps is allowed in Lake County and encouraged by the Lake County Solid Waste Management District. A compost pile must ...
Lake County, IN
Lake County has no county-wide ban on artificial turf for residential yards. Installation is governed mainly by local zoning and stormwater rules and, in dev...
Lake County, IN
Native-plant and prairie landscaping is allowed in Lake County, but it must still comply with local rank-vegetation and detrimental-plant rules. Intentional ...
Lake County, IN
Collecting rainwater is legal in Indiana and Lake County imposes no barrel ban. Rain barrels for outdoor irrigation are unrestricted, though any barrel or ci...
Lake County, IN
Lake County, Indiana sets no county-wide day-of-week lawn watering schedule. Northwest Indiana is not a drought-rationing region, and outdoor water use is go...
Lake County, IN
Indiana law makes property owners destroy detrimental plants. IC 15-16-8-1 lists Canada thistle, Johnson grass, Columbus grass, bur cucumber, and shattercane...
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