Car Wash Environmental Regulations in Illinois

Environmental compliance is a critical factor in Illinois car wash operations and acquisitions. Understanding your regulatory obligations protects your investment.

Illinois EPA Overview

The Illinois Environmental Protection Agency (IEPA) regulates car washes primarily through wastewater discharge standards and hazardous material handling. Operations must comply with the Illinois Environmental Protection Act and related administrative code.

Wastewater Discharge Requirements

• NPDES permit required if discharging to surface waters
• Pretreatment required before discharge to municipal sewers
• Oil/water separators required to remove petroleum contaminants
• Total suspended solids, pH, and oil/grease limits must be met
• Permit applications through IEPA or local POTW

Chemical Storage & Handling

• Secondary containment required for bulk chemical storage
• Safety Data Sheets (SDS) required for all on-site chemicals
• Employee training on chemical handling and emergency response
• Spill prevention plan required above threshold quantities

Underground Storage Tanks (USTs)

• USTs must be registered with IEPA
• Regular testing and monitoring required
• Known releases must be reported and remediated immediately
• Phase I Environmental Site Assessment recommended for all acquisitions

Environmental Due Diligence

• Phase I ESA required by most SBA lenders
• Review all IEPA correspondence and violation history
• Verify all permits current and in compliance
• Inspect containment systems for integrity
• Inquire about any known contamination or releases