Illinois anchors Midwest refining with major plants at Joliet, Lemont, Wood River, and Robinson, plus chemical manufacturing across the Chicago area. AIM™ EH&S runs Leak Detection and Repair (LDAR) programs across Illinois with crews who have walked the units they monitor.
Which Rules Apply in Illinois
The Illinois EPA administers air permitting under EPA Region 5, with refineries and chemical plants carrying refinery MACT CC, NESHAP HON, and NSPS VV/VVa, plus added requirements in the Chicago ozone area. We read the applicable subpart for your facility instead of guessing.
What We Do
Method 21 component monitoring, OGI surveys, repair tracking against the regulatory clock, audit-grade recordkeeping, and program design — from single pads to refinery-scale unit counts.
Why Illinois Operators Call Us
Illinois EPA and EPA Region 5 experience, calibrated instruments, and defensible data every time. No fluff, no padded headcounts.
Get an LDAR Program That Holds Up
From Joliet to Wood River, we scope it straight. Talk to someone who has walked the unit.