Peoria's Environmental Rules: The Rules That Matter

If you live in Peoria or are thinking about moving there, environmental rules are one of those things you probably won't think about until they affect you directly. Peoria has 2 specific rules on the books covering different aspects of environmental rules, and some of them might surprise you.

Stormwater Management

Peoria operates a Municipal Separate Storm Sewer System (MS4) under a National Pollutant Discharge Elimination System (NPDES) Phase II permit administered by the Illinois Environmental Protection Agency (IEPA). Development and redevelopment projects must comply with stormwater best-management practices (BMPs), erosion and sediment control during construction, and post-construction stormwater quality controls. Illegal discharges to storm drains are prohibited under Peoria Code Chapter 28 (Stormwater Management).

Key details: MS4 Permit: NPDES ILR40 (Illinois EPA). Construction Permit: NPDES ILR10 (1+ acre disturbance). Six MCMs: Education, participation, IDDE, construction, post-construction, good housekeeping. IL EPA Authority: 35 IL Adm. Code Subtitle C. Local Code: Peoria Code Ch. 28 Stormwater.

NPDES violations under the Clean Water Act can carry federal civil penalties up to $59,973 per day per violation (2024 adjusted figure). State-level penalties under Illinois EPA enforcement orders can reach $50,000 per violation plus $10,000 per day. Local citations under Peoria Code Chapter 28 typically run $100-$1,000 per occurrence with daily continuing-violation penalties. Stop-work orders apply to construction sites lacking adequate erosion control.

This is one of the stricter rules in Peoria's municipal code. If you are unsure whether your situation complies, it is worth checking with the city before proceeding.

Flood Zones

Peoria participates in the National Flood Insurance Program (NFIP) and enforces floodplain development standards through Chapter 28 (Stormwater Management) and the Illinois Department of Natural Resources Office of Water Resources rules under the Illinois Rivers, Lakes, and Streams Act (615 ILCS 5/). Construction in FEMA Special Flood Hazard Areas (Zones A, AE) along the Illinois River and tributaries requires elevation of habitable spaces to or above the Base Flood Elevation (BFE) plus 1 foot of freeboard.

Key details: NFIP Status: Participating community. Local Code: Peoria Code Ch. 28 (Stormwater/Floodplain). Freeboard: BFE + 1 ft for new construction. State Authority: IDNR-OWR (17 IL Adm. Code 3700/3702). Substantial Improvement: 50% market-value threshold.

NFIP non-compliance can result in: (1) loss of community NFIP participation, ending flood-insurance availability for all Peoria residents; (2) FEMA enforcement actions; (3) local Chapter 28 citations of $100-$1,000 per occurrence with daily continuing-violation penalties; (4) state IDNR-OWR enforcement orders under 615 ILCS 5/ with civil penalties up to $5,000 per violation. Substantial improvement or substantial damage rebuilt without compliance can trigger an order to elevate or demolish.

This is not one of those rules that cities tend to ignore. Peoria actively enforces its flood zones requirements.

The Bottom Line

Peoria is tougher than many cities when it comes to environmental rules. Out of the 2 rules covered here, 2 are rated strict. If you are a homeowner, renter, or business owner in Peoria, take the time to understand these requirements before they become a problem. Most violations come with fines, and some repeat violations can escalate.

Keep in mind that Peoria can amend these rules at any council meeting. For the most current version of any rule mentioned here, check the specific ordinance page, where we track updates as they happen.