Environmental Rules in Joliet, IL (2026)
5 verified environmental rules for Joliet, Illinois, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
The City of Joliet regulates stormwater management through its Consolidated Stormwater Management Regulations (Chapter 8, Article X). The ordinance controls peak discharge rates, requires detention for new development and redevelopment, and mandates best management practices. Peak 2-year discharge cannot exceed 0.04 cfs per acre and peak 100-year discharge cannot exceed 0.15 cfs per acre.
Joliet Stormwater Management Ordinance
Some RestrictionsErosion Control
The City of Joliet regulates erosion and sediment control through its Consolidated Stormwater Management, Soil Erosion, and Sediment Control regulations within the Building Code (Chapter 8, Article X). Any land-disturbing activity requires an erosion control plan. Velocity dissipation measures must be incorporated into basin designs to minimize erosion at inlets and outlets. The city serves as the permitting authority for all land-disturbing activities.
Joliet Erosion and Sediment Control Ordinance
Some RestrictionsCoastal Development
Joliet is an inland city in Will County, Illinois, approximately 200 miles from any coastline. There are no coastal development regulations applicable to Joliet. The city is not within any coastal zone management area. Development near the Des Plaines River is governed by floodplain regulations rather than coastal rules.
Joliet Coastal Development Regulations
Few RestrictionsFlood Zones
Joliet has significant FEMA flood zones along the Des Plaines River, roughly between the river on the west and Eastern Avenue on the east. Properties in flood zones must comply with FEMA building requirements including elevation standards. Updated FIRM maps took effect February 15, 2019.
Joliet FEMA Flood Zone Regulations
Heavy RestrictionsGrading & Drainage
The City of Joliet regulates grading and drainage through the Consolidated Stormwater Management Regulations (Chapter 8, Article X). Grading permits are required for land-disturbing activities. Grading plans must show existing and proposed grades, drainage patterns, and erosion control measures. The ordinance prohibits altering drainage to cause adverse impacts on neighboring properties.
Joliet Grading and Drainage Regulations
Some RestrictionsLooking for Will County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Joliet city rules.
Environmental Rules in Will County →