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California / Toxic Substances Control / Senior Hazardous Substances Engineer

Job-title file

Senior Hazardous Substances Engineer

Design, analyze, and oversee technical systems or infrastructure, ensuring they meet specifications and codes.

73 employees hold this title in Toxic Substances Control. Median total compensation for the role is $144,673, above the department median of $102,059.

Employees
73
Total payroll
$9.9M
Role median
$144,673
Agency median
$102,059
Comparison
Above

What the records show

Role pay distribution

Pay distribution for this role

$7,435$176,226+

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

How total compensation varies among the 73 people in this role. Even for one job title, pay differs with seniority, step, overtime, and tenure. Each bar is a pay range; the far-right bar collects the highest earners.

Compared with the local labor market

Senior Hazardous Substances Engineer pay vs. California

Across all employers in California, the median wage for Environmental Engineers — about 4,550 people — is $130,410. Toxic Substances Control pays a median base salary of $142,703 for this role, 9% above that figureabout the 67th percentile of local pay for the occupation.

Where Toxic Substances Control sits in the local pay range

10th
25th
Median
75th
90th
$79,790
$95,950
$130,410
$148,650
$170,790
Toxic Substances Control median · $142,703

The bar is the range of annual wages for Environmental Engineers across every employer in California, from the 10th to the 90th percentile, with the middle 50% highlighted. The marker shows Toxic Substances Control’s median base salary for this role. Both figures are base pay only.

And across the country

Nationwide, the median wage for Environmental Engineers — about 38,340 people — is $107,110. Toxic Substances Control’s median base salary is 33% above that national figure, about the 79th percentile of pay for the occupation nationally.

10th
25th
Median
75th
90th
$69,990
$83,570
$107,110
$134,420
$162,220
Toxic Substances Control median · $142,703

Local and national wages differ for reasons beyond how well a job pays — cost of living, the mix of employers, and local demand for the occupation all move the California range relative to the national one.

Computed over the 68 of 73 people in this role paid at least $25,000in base salary. The rest are part-year or part-time records, whose actual pay isn’t comparable to a full-time annual wage.

Median total compensation for this role at Toxic Substances Control is $144,673, which includes overtime and employer-paid benefits. The benchmark above excludes both, so total compensation is deliberately not compared against it.

Benchmark: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics (May 2025). BLS Occupational Employment and Wage Statistics (OEWS) covers all employers in the area — private, non-profit, and government alike — so this is a comparison against the whole local labor market for the occupation, not against private-sector pay. OEWS wages are straight-time pay and exclude overtime, shift differentials, and employer-paid benefits, so the government figure shown here is base pay on the same basis. Total compensation is not comparable to it. Job titles are matched to the closest standard occupation, so the comparison is between similar work rather than an identical job classification.

Record list

Employees with this title

Page 1

Benjamin Stanphill

Senior Hazardous Substances Engineer/Toxic Substances Control

2024 total comp
$141,108
Base pay
$140,508
Overtime
$0
Other pay
$600
Benefits
$0
Total compensation
$141,108
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Orange
Middle name
R

Source-specific fields

Base Pay
$12,230
Cs/csu
Cs
Position Number
8105443725002
Salary Total
$12,230
Total Pay
$141,108

Benjamin Stanphill is a Senior Hazardous Substances Engineer at Toxic Substances Control. They work full-time. 2024 total compensation came to $141,108. Their bargaining unit is R09.

Omar Ghaleb

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$140,399
Base pay
$139,797
Overtime
$0
Other pay
$602
Benefits
$0
Total compensation
$140,399
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Sacramento
Middle name
A

Source-specific fields

Base Pay
$12,004
Cs/csu
Cs
Position Number
8106513725305
Salary Total
$11,644
Total Pay
$140,399

Omar Ghaleb holds the role of Senior Hazardous Substances Engineer at Toxic Substances Control. Their status is full-time. In 2025, their total compensation was $140,399. They are represented by R09.

Dicle Yardimci

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$140,147
Base pay
$139,797
Overtime
$0
Other pay
$350
Benefits
$0
Total compensation
$140,147
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Sacramento

Source-specific fields

Base Pay
$12,004
Cs/csu
Cs
Position Number
8103403725005
Salary Total
$11,644
Total Pay
$140,147

Dicle Yardimci is a Senior Hazardous Substances Engineer at Toxic Substances Control. They work full-time. 2025 total compensation came to $140,147. Union affiliation: R09.

Piotr Kostecki

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$140,074
Base pay
$139,797
Overtime
$0
Other pay
$277
Benefits
$0
Total compensation
$140,074
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Sacramento
Middle name
Z

Source-specific fields

Base Pay
$12,004
Cs/csu
Cs
Position Number
8105913725022
Salary Total
$11,644
Total Pay
$140,074

Piotr Kostecki is a Senior Hazardous Substances Engineer at Toxic Substances Control. They work full-time. 2025 total compensation came to $140,074. They are represented by R09.

Sowmya Venkatasubramanian

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$139,298
Base pay
$138,948
Overtime
$0
Other pay
$350
Benefits
$0
Total compensation
$139,298
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Los Angeles

Source-specific fields

Base Pay
$12,004
Cs/csu
Cs
Position Number
8105363725601
Salary Total
$11,644
Total Pay
$139,298

At Toxic Substances Control, Sowmya Venkatasubramanian serves as a Senior Hazardous Substances Engineer. They work full-time. Their 2025 pay totaled $139,298. Their bargaining unit is R09.

Travis Coburn

Senior Hazardous Substances Engineer/Toxic Substances Control

2023 total comp
$137,597
Base pay
$136,997
Overtime
$0
Other pay
$600
Benefits
$0
Total compensation
$137,597
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Orange
Middle name
M

Source-specific fields

Base Pay
$11,991
Cs/csu
Cs
Position Number
8105043725005
Salary Total
$11,991
Total Pay
$137,597

Travis Coburn holds the role of Senior Hazardous Substances Engineer at Toxic Substances Control. Their status is full-time. In 2023, their total compensation was $137,597. Their bargaining unit is R09.

Armeen Etemad

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$136,753
Base pay
$136,403
Overtime
$0
Other pay
$350
Benefits
$0
Total compensation
$136,753
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Sacramento

Source-specific fields

Base Pay
$11,998
Cs/csu
Cs
Position Number
8103403725002
Salary Total
$11,638
Total Pay
$136,753

At Toxic Substances Control, Armeen Etemad serves as a Senior Hazardous Substances Engineer. They work full-time. Their 2025 pay totaled $136,753. Union affiliation: R09.

James Baker

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$136,578
Base pay
$136,403
Overtime
$0
Other pay
$175
Benefits
$0
Total compensation
$136,578
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Sacramento
Middle name
P

Source-specific fields

Base Pay
$11,998
Cs/csu
Cs
Position Number
8103403725003
Salary Total
$11,638
Total Pay
$136,578

James Baker works as a Senior Hazardous Substances Engineer for Toxic Substances Control. Their status is full-time. James earned $136,578 in 2025. They are represented by R09.

Parampreet Basra

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$136,043
Base pay
$135,670
Overtime
$0
Other pay
$373
Benefits
$0
Total compensation
$136,043
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Sacramento
Middle name
K

Source-specific fields

Base Pay
$11,934
Cs/csu
Cs
Position Number
8106513725003
Salary Total
$11,576
Total Pay
$136,043

At Toxic Substances Control, Parampreet Basra serves as a Senior Hazardous Substances Engineer. They work full-time. Their 2025 pay totaled $136,043. Union affiliation: R09.

Thomas Bruton

Senior Hazardous Substances Engineer/Toxic Substances Control

2023 total comp
$135,369
Base pay
$134,769
Overtime
$0
Other pay
$600
Benefits
$0
Total compensation
$135,369
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Sacramento
Middle name
A

Source-specific fields

Base Pay
$11,425
Cs/csu
Cs
Position Number
8103403725002
Salary Total
$11,425
Total Pay
$135,369

Thomas Bruton works as a Senior Hazardous Substances Engineer for Toxic Substances Control. Their status is full-time. Thomas earned $135,369 in 2023. Union affiliation: R09.

Vinke Menardo

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$134,046
Base pay
$133,696
Overtime
$0
Other pay
$350
Benefits
$0
Total compensation
$134,046
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Alameda
Middle name
Y

Source-specific fields

Base Pay
$11,735
Cs/csu
Cs
Position Number
8106523725017
Salary Total
$11,633
Total Pay
$134,046

At Toxic Substances Control, Vinke Menardo serves as a Senior Hazardous Substances Engineer. They work full-time. Their 2025 pay totaled $134,046. They are represented by R09.