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Seniority Profile · Illinois

Senior Environmental Engineers salary in Illinois

Roles that require seasoned judgement and the ability to lead projects without supervision. Typically five to ten years of experience and a track record of complete ownership.

Adrian Serafin, founder and editor of RateOrchardBy Adrian SerafinFounderUpdated May 4, 2026
BLS percentile range
MEDIAN to P75 of the Illinois OES distribution for Environmental Engineers.
DOL OFLC offered median
$109,922
Across 8 certified filings at this wage level.
Real disclosed salaries

Senior Environmental Engineers in Illinois: actual employer-disclosed pay

Public records from 8 certified H-1B Labor Condition Applications filed with the U.S. Department of Labor. Median offered wage: $109,922. Every figure below is an actual offered salary an employer attested to under federal law.

By DOL wage level

DOL classifies every offer into one of four wage levels based on the role's experience and skill requirements.

LevelFilingsMedian offer
Level III — experienced8$109,922

Top employers filing for this role

Companies with the most certified filings for Senior Environmental Engineers in Illinois. Median offer is across all of that employer's filings.

EmployerMost-filed titleFilingsMedian
UChicago Argonne, LLCEnergy Systems Analyst3$109,922
Environmental Resources Management, Inc.Principal Consultant, Air Quality1$134,940
Geosyntec Consultants, Inc.Professional1$107,099
UChicago Argonne LLCEnergy Systems Analyst1$92,768
University of ChicagoResearch Assistant Professor1$115,000
Archer Daniels Midland CompanySenior Air Quality Management Engineer1$140,000

Recent sample filings

A snapshot of recent certified offers. Each line is a real, public, verifiable record.

  • Energy Systems Analyst at UChicago Argonne, LLC
    $94,827
    LemontWage Level IIIDecided Sep 9, 2025I-200-25245-280272
  • Principal Consultant, Air Quality at Environmental Resources Management, Inc.
    $134,940
    Rolling MeadowsWage Level IIIDecided Aug 14, 2025I-200-25219-228061
  • Professional at Geosyntec Consultants, Inc.
    $107,099
    ChicagoWage Level IIIDecided Jun 27, 2025I-200-25171-117151
  • Energy Systems Analyst at UChicago Argonne LLC
    $92,768
    LemontWage Level IIIDecided Mar 4, 2025I-200-25056-723459
  • Research Assistant Professor at University of Chicago
    $115,000
    ChicagoWage Level IIIDecided Feb 4, 2025I-200-25028-647511
  • Senior Air Quality Management Engineer at Archer Daniels Midland Company
    $140,000
    DecaturWage Level IIIDecided Oct 1, 2024I-200-24268-360278
  • Energy Systems Analyst at UChicago Argonne, LLC
    $109,922
    LemontWage Level IIIDecided Jul 3, 2025I-200-25177-131126
  • Energy Systems Analyst at UChicago Argonne, LLC
    $109,922
    LemontWage Level IIIDecided Apr 24, 2025I-200-25107-876182

Source: U.S. Department of Labor, Office of Foreign Labor Certification. Disclosed wages reflect what employers attested to pay; actual paid wages may differ. Only certified filings are shown — denied and withdrawn cases are excluded.