Illinois / Environmental Protect Agency

Agency file

Environmental Protect Agency

Source file: Illinois — State Employee Pay / ingested Jun 18, 2026

The Environmental Protect Agency protects natural resources and the environment — conservation, parks and wildlife, and environmental regulation.

In 2025, this agency had 612 employees with median total compensation of $70,750; the highest distinct record was $187,900.

Year: 2025
Total payroll: $44M
Employees: 612
Median total: $70,750
Highest record: $187,900

What the records show

Compensation analytics

These summaries compare pay within the agency before listing individual records.

Salary distribution

$0$150,800+

Hover a bar for its range; click to filter the list below.

How 2025 total compensation is spread across the 612 employees. Each bar is a pay range; taller bars mean more people earn in that range. The amber line marks the median ($70,750) — half earn less, half more. The far-right bar collects the highest earners.

Average pay composition

Base — $0 (0%)
Overtime — $0 (0%)
Other — $71,855 (100%)
Benefits — $0 (0%)

What an average paycheck here is made of — base salary versus overtime, other pay (bonuses, allowances), and benefits. A large overtime or other-pay share means take-home often exceeds base salary.

Pay percentiles

10th

25th

Median

75th

90th

$23,700

$50,800

$70,750

$93,500

$112,400

The pay ladder for this department. Someone at the 90th percentile earns $112,400 — more than 90% of the department; the 10th percentile earns $23,700. The shaded band is the middle half of employees (25th–75th percentile).

Largest job titles

Environmental Prot Engineer III

81 · $98,400

Environmental Prot Specialist III

80 · $72,000

Environmental Protection Specialist I

39 · $31,000

Environmental Prot Specialist II

38 · $61,100

Senior Public Service Administrative

37 · $143,800

The most common job titles in this department by headcount, with the median total compensation for each. Click a title to see everyone who holds it.

Trend

Year over year

How this department's total payroll, headcount, and median pay changed across the 3 published years.

Year	Total payroll	Employees	Median pay
2023	$34.3M —	646 —	$51,750 —
2024	$41.8M ▲ 21.9%	689 ▲ 6.7%	$58,800 ▲ 13.6%
2025	$44M ▲ 5.2%	612 ▼ 11.2%	$70,750 ▲ 20.3%

Record list

Employees

Page 2

Christopher Castle

Environmental Protection Specialist I/Environmental Protect Agency

2024 total comp

$53,000

Sub-department: Solid Waste Management Fund
Base pay: $0
Overtime: $0
Other pay: $53,000
Benefits: $0
Total compensation: $53,000
Union / bargaining unit: Collective Bargaining
Work county: Sangamon

Source-specific fields

4-D Exempt: No
Employment Status: CERTIFIED
Period Pay Rate: $2,900
Rutan Exempt: No

Christopher Castle is a Environmental Protection Specialist I at Environmental Protect Agency within Solid Waste Management Fund. 2024 total compensation came to $53,000. Union affiliation: Collective Bargaining.

Guosen Chen

Environmental Protection Engineer II/Environmental Protect Agency

2023 total comp

$52,800

Sub-department: Air Pollution Control-Federal
Base pay: $0
Overtime: $0
Other pay: $52,800
Benefits: $0
Total compensation: $52,800
Union / bargaining unit: Collective Bargaining
Work county: Sangamon

Source-specific fields

4-D Exempt: No
Employment Status: CERTIFIED
Period Pay Rate: $3,000
Rutan Exempt: No

At Environmental Protect Agency, Guosen Chen serves as a Environmental Protection Engineer II within Air Pollution Control-Federal. Their 2023 pay totaled $52,800. Union affiliation: Collective Bargaining.

Scott Ballweg

Office Associate/Environmental Protect Agency

2025 total comp

$52,800

Sub-department: Used Tire Management
Base pay: $0
Overtime: $0
Other pay: $52,800
Benefits: $0
Total compensation: $52,800
Union / bargaining unit: Collective Bargaining
Work county: Sangamon

Source-specific fields

4-D Exempt: Yes
Employment Status: CERTIFIED
Period Pay Rate: $2,200
Rutan Exempt: No

Scott Ballweg holds the role of Office Associate at Environmental Protect Agency within Used Tire Management. In 2025, their total compensation was $52,800. They are represented by Collective Bargaining.

Marlisha Walton

Office Coordinator/Environmental Protect Agency

2025 total comp

$52,400

Sub-department: Air Pollution Control-Federal
Base pay: $0
Overtime: $0
Other pay: $52,400
Benefits: $0
Total compensation: $52,400
Union / bargaining unit: Collective Bargaining
Work county: Sangamon

Source-specific fields

4-D Exempt: Yes
Employment Status: CERTIFIED
Period Pay Rate: $2,300
Rutan Exempt: No

Marlisha Walton is a Office Coordinator at Environmental Protect Agency within Air Pollution Control-Federal. 2025 total compensation came to $52,400. Union affiliation: Collective Bargaining.

Carol Howard

Office Coordinator/Environmental Protect Agency

2025 total comp

$52,400

Sub-department: Loan Program Support
Base pay: $0
Overtime: $0
Other pay: $52,400
Benefits: $0
Total compensation: $52,400
Union / bargaining unit: Collective Bargaining
Work county: Sangamon

Source-specific fields

4-D Exempt: Yes
Employment Status: CERTIFIED
Period Pay Rate: $2,200
Rutan Exempt: No

Carol Howard holds the role of Office Coordinator at Environmental Protect Agency within Loan Program Support. In 2025, their total compensation was $52,400. Their bargaining unit is Collective Bargaining.

Davis Hampson

Environmental Protection Specialist I/Environmental Protect Agency

2024 total comp

$52,000

Sub-department: Water Pollution Control-Federal
Base pay: $0
Overtime: $0
Other pay: $52,000
Benefits: $0
Total compensation: $52,000
Union / bargaining unit: Collective Bargaining
Work county: Cook

Source-specific fields

4-D Exempt: Yes
Employment Status: TRAINEE OC LIST
Period Pay Rate: $2,400
Rutan Exempt: No

Davis Hampson is a Environmental Protection Specialist I at Environmental Protect Agency within Water Pollution Control-Federal. 2024 total compensation came to $52,000. Union affiliation: Collective Bargaining.

David Souther

Environmental Protection Specialist II/Environmental Protect Agency

2023 total comp

$51,900

Sub-department: Water Pollution Control-Federal
Base pay: $0
Overtime: $0
Other pay: $51,900
Benefits: $0
Total compensation: $51,900
Union / bargaining unit: Collective Bargaining
Work county: Sangamon

Source-specific fields

4-D Exempt: No
Employment Status: CERTIFIED
Period Pay Rate: $2,400
Rutan Exempt: No

David Souther works as a Environmental Protection Specialist II for Environmental Protect Agency within Water Pollution Control-Federal. David earned $51,900 in 2023. Union affiliation: Collective Bargaining.

Laurie Robertson

Office Coordinator/Environmental Protect Agency

2025 total comp

$51,900

Sub-department: Alternate Fuels
Base pay: $0
Overtime: $0
Other pay: $51,900
Benefits: $0
Total compensation: $51,900
Union / bargaining unit: Collective Bargaining
Work county: Sangamon

Source-specific fields

4-D Exempt: Yes
Employment Status: PROB 6 MOS
Period Pay Rate: $3,500
Rutan Exempt: No

Laurie Robertson holds the role of Office Coordinator at Environmental Protect Agency within Alternate Fuels. In 2025, their total compensation was $51,900. Union affiliation: Collective Bargaining.

Joshua Groth

Environmental Protection Geol II/Environmental Protect Agency

2023 total comp

$51,700

Sub-department: Solid Waste Management Fund
Base pay: $0
Overtime: $0
Other pay: $51,700
Benefits: $0
Total compensation: $51,700
Union / bargaining unit: Collective Bargaining
Work county: Sangamon

Source-specific fields

4-D Exempt: No
Employment Status: CERTIFIED
Period Pay Rate: $2,500
Rutan Exempt: No

Joshua Groth works as a Environmental Protection Geol II for Environmental Protect Agency within Solid Waste Management Fund. Joshua earned $51,700 in 2023. Their bargaining unit is Collective Bargaining.

Amanda Walsh

Office Coordinator/Environmental Protect Agency

2025 total comp

$51,600

Sub-department: Loan Program Support
Base pay: $0
Overtime: $0
Other pay: $51,600
Benefits: $0
Total compensation: $51,600
Union / bargaining unit: Collective Bargaining
Work county: Cook

Source-specific fields

4-D Exempt: Yes
Employment Status: CERTIFIED
Period Pay Rate: $2,200
Rutan Exempt: No

Amanda Walsh holds the role of Office Coordinator at Environmental Protect Agency within Loan Program Support. In 2025, their total compensation was $51,600. Union affiliation: Collective Bargaining.

Christopher Castle

Environmental Protection Specialist III/Environmental Protect Agency

2025 total comp

$51,400

Sub-department: Solid Waste Management Fund
Base pay: $0
Overtime: $0
Other pay: $51,400
Benefits: $0
Total compensation: $51,400
Union / bargaining unit: Collective Bargaining
Work county: Sangamon

Source-specific fields

4-D Exempt: No
Employment Status: CERTIFIED
Period Pay Rate: $700
Rutan Exempt: No

Christopher Castle is a Environmental Protection Specialist III at Environmental Protect Agency within Solid Waste Management Fund. 2025 total compensation came to $51,400. They are represented by Collective Bargaining.

Aidan Mccooey

Environmental Protection Engineer I/Environmental Protect Agency

2023 total comp

$51,200

Sub-department: Air - Permit Fees
Base pay: $0
Overtime: $0
Other pay: $51,200
Benefits: $0
Total compensation: $51,200
Union / bargaining unit: Collective Bargaining
Work county: Sangamon

Source-specific fields

4-D Exempt: No
Employment Status: CERTIFIED
Period Pay Rate: $3,400
Rutan Exempt: No

Aidan Mccooey works as a Environmental Protection Engineer I for Environmental Protect Agency within Air - Permit Fees. Aidan earned $51,200 in 2023. Their bargaining unit is Collective Bargaining.

Paul Osazuwa

Environmental Protection Engineer I/Environmental Protect Agency

2024 total comp

$51,200

Sub-department: Air - Permit Fees
Base pay: $0
Overtime: $0
Other pay: $51,200
Benefits: $0
Total compensation: $51,200
Union / bargaining unit: Collective Bargaining
Work county: Sangamon

Source-specific fields

4-D Exempt: No
Employment Status: PROB 6 MOS
Period Pay Rate: $3,600
Rutan Exempt: No

Paul Osazuwa is a Environmental Protection Engineer I at Environmental Protect Agency within Air - Permit Fees. 2024 total compensation came to $51,200. They are represented by Collective Bargaining.

Marissa Quigley

Environmental Protection Specialist I/Environmental Protect Agency

2024 total comp

$51,200

Sub-department: Clean Water
Base pay: $0
Overtime: $0
Other pay: $51,200
Benefits: $0
Total compensation: $51,200
Union / bargaining unit: Collective Bargaining
Work county: Sangamon

Source-specific fields

4-D Exempt: Yes
Employment Status: TRAINEE OC LIST
Period Pay Rate: $2,400
Rutan Exempt: No

Marissa Quigley is a Environmental Protection Specialist I at Environmental Protect Agency within Clean Water. 2024 total compensation came to $51,200. Union affiliation: Collective Bargaining.

Luis Lopez

Office Associate/Environmental Protect Agency

2025 total comp

$51,000

Sub-department: Loan Program Support
Base pay: $0
Overtime: $0
Other pay: $51,000
Benefits: $0
Total compensation: $51,000
Union / bargaining unit: Collective Bargaining
Work county: Sangamon

Source-specific fields

4-D Exempt: Yes
Employment Status: CERTIFIED
Period Pay Rate: $2,200
Rutan Exempt: No

Luis Lopez is a Office Associate at Environmental Protect Agency within Loan Program Support. 2025 total compensation came to $51,000. They are represented by Collective Bargaining.

Donald Buis

Environmental Protection Specialist III/Environmental Protect Agency

2023 total comp

$50,800

Sub-department: Solid Waste Management Fund
Base pay: $0
Overtime: $0
Other pay: $50,800
Benefits: $0
Total compensation: $50,800
Union / bargaining unit: Collective Bargaining
Work county: Sangamon

Source-specific fields

4-D Exempt: No
Employment Status: CERTIFIED
Period Pay Rate: $9,100
Rutan Exempt: No

Donald Buis works as a Environmental Protection Specialist III for Environmental Protect Agency within Solid Waste Management Fund. Donald earned $50,800 in 2023. Union affiliation: Collective Bargaining.

Ethan Herrick

Environmental Protection Specialist I/Environmental Protect Agency

2025 total comp

$50,800

Sub-department: Solid Waste Management Fund
Base pay: $0
Overtime: $0
Other pay: $50,800
Benefits: $0
Total compensation: $50,800
Union / bargaining unit: Collective Bargaining
Work county: Sangamon

Source-specific fields

4-D Exempt: No
Employment Status: TRAINEE OC LIST
Period Pay Rate: $2,500
Rutan Exempt: No

Ethan Herrick works as a Environmental Protection Specialist I for Environmental Protect Agency within Solid Waste Management Fund. Ethan earned $50,800 in 2025. Their bargaining unit is Collective Bargaining.

John Watson

Environmental Protection Specialist I/Environmental Protect Agency

2025 total comp

$50,800

Sub-department: Water Pollution Control-Federal
Base pay: $0
Overtime: $0
Other pay: $50,800
Benefits: $0
Total compensation: $50,800
Union / bargaining unit: Collective Bargaining
Work county: Sangamon

Source-specific fields

4-D Exempt: No
Employment Status: TRAINEE OC LIST
Period Pay Rate: $2,500
Rutan Exempt: No

John Watson is a Environmental Protection Specialist I at Environmental Protect Agency within Water Pollution Control-Federal. 2025 total compensation came to $50,800. Union affiliation: Collective Bargaining.

Darlene Powell

Environmental Protection Specialist I/Environmental Protect Agency

2025 total comp

$50,800

Sub-department: Used Tire Management
Base pay: $0
Overtime: $0
Other pay: $50,800
Benefits: $0
Total compensation: $50,800
Union / bargaining unit: Collective Bargaining
Work county: Sangamon

Source-specific fields

4-D Exempt: No
Employment Status: TRAINEE OC LIST
Period Pay Rate: $2,500
Rutan Exempt: No

Darlene Powell holds the role of Environmental Protection Specialist I at Environmental Protect Agency within Used Tire Management. In 2025, their total compensation was $50,800. They are represented by Collective Bargaining.

Rufus Ajayi

Environmental Protection Specialist II/Environmental Protect Agency

2023 total comp

$50,700

Sub-department: Water Pollution Control-Federal
Base pay: $0
Overtime: $0
Other pay: $50,700
Benefits: $0
Total compensation: $50,700
Union / bargaining unit: Collective Bargaining
Work county: Sangamon

Source-specific fields

4-D Exempt: No
Employment Status: CERTIFIED
Period Pay Rate: $2,400
Rutan Exempt: No

At Environmental Protect Agency, Rufus Ajayi serves as a Environmental Protection Specialist II within Water Pollution Control-Federal. Their 2023 pay totaled $50,700. Union affiliation: Collective Bargaining.

Justin Burge

Environmental Protection Specialist I/Environmental Protect Agency

2025 total comp

$50,500

Sub-department: Water Pollution Control-Federal
Base pay: $0
Overtime: $0
Other pay: $50,500
Benefits: $0
Total compensation: $50,500
Union / bargaining unit: Collective Bargaining
Work county: Sangamon

Source-specific fields

4-D Exempt: No
Employment Status: TRAINEE OC LIST
Period Pay Rate: $3,100
Rutan Exempt: No

Justin Burge is a Environmental Protection Specialist I at Environmental Protect Agency within Water Pollution Control-Federal. 2025 total compensation came to $50,500. Union affiliation: Collective Bargaining.

Becky Greener

Office Coordinator/Environmental Protect Agency

2025 total comp

$50,400

Sub-department: Loan Program Support
Base pay: $0
Overtime: $0
Other pay: $50,400
Benefits: $0
Total compensation: $50,400
Union / bargaining unit: Collective Bargaining
Work county: Sangamon

Source-specific fields

4-D Exempt: Yes
Employment Status: CERTIFIED
Period Pay Rate: $2,100
Rutan Exempt: No

Becky Greener works as a Office Coordinator for Environmental Protect Agency within Loan Program Support. Becky earned $50,400 in 2025. They are represented by Collective Bargaining.

John Derosa

Office Coordinator/Environmental Protect Agency

2025 total comp

$50,400

Sub-department: Water Pollution Control-Federal
Base pay: $0
Overtime: $0
Other pay: $50,400
Benefits: $0
Total compensation: $50,400
Union / bargaining unit: Collective Bargaining
Work county: Sangamon

Source-specific fields

4-D Exempt: Yes
Employment Status: PROB 6 MOS
Period Pay Rate: $2,100
Rutan Exempt: No

John Derosa works as a Office Coordinator for Environmental Protect Agency within Water Pollution Control-Federal. John earned $50,400 in 2025. Union affiliation: Collective Bargaining.

Jennifer Caulk

Office Coordinator/Environmental Protect Agency

2025 total comp

$50,400

Sub-department: Air - Permit Fees
Base pay: $0
Overtime: $0
Other pay: $50,400
Benefits: $0
Total compensation: $50,400
Union / bargaining unit: Collective Bargaining
Work county: Sangamon

Source-specific fields

4-D Exempt: Yes
Employment Status: CERTIFIED
Period Pay Rate: $2,100
Rutan Exempt: No

Jennifer Caulk holds the role of Office Coordinator at Environmental Protect Agency within Air - Permit Fees. In 2025, their total compensation was $50,400. Union affiliation: Collective Bargaining.