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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

John Bystra

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$133,307
Base pay
$132,807
Overtime
$0
Other pay
$500
Benefits
$0
Total compensation
$133,307
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Sacramento
Middle name
C

Source-specific fields

Base Pay
$11,347
Cs/csu
Cs
Position Number
8105413725014
Salary Total
$11,347
Total Pay
$133,307

John Bystra works as a Senior Hazardous Substances Engineer for Toxic Substances Control. Their status is full-time. John earned $133,307 in 2025. They are represented by R09.

Kahui Lim

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$129,787
Base pay
$129,497
Overtime
$0
Other pay
$290
Benefits
$0
Total compensation
$129,787
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Sacramento

Source-specific fields

Base Pay
$11,427
Cs/csu
Cs
Position Number
8105413725012
Salary Total
$11,084
Total Pay
$129,787

Kahui Lim works as a Senior Hazardous Substances Engineer for Toxic Substances Control. Their status is full-time. Kahui earned $129,787 in 2025. Their bargaining unit is R09.

Mohsen Behbahani

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$129,382
Base pay
$129,132
Overtime
$0
Other pay
$250
Benefits
$0
Total compensation
$129,382
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Orange

Source-specific fields

Base Pay
$11,923
Cs/csu
Cs
Position Number
8105143725001
Salary Total
$11,565
Total Pay
$129,382

Mohsen Behbahani works as a Senior Hazardous Substances Engineer for Toxic Substances Control. Their status is full-time. Mohsen earned $129,382 in 2025. Their bargaining unit is R09.

Robert Cavers

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$128,436
Base pay
$128,086
Overtime
$0
Other pay
$350
Benefits
$0
Total compensation
$128,436
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Sacramento
Middle name
C

Source-specific fields

Base Pay
$11,176
Cs/csu
Cs
Position Number
8105313725901
Salary Total
$10,841
Total Pay
$128,436

Robert Cavers holds the role of Senior Hazardous Substances Engineer at Toxic Substances Control. Their status is full-time. In 2025, their total compensation was $128,436. Union affiliation: R09.

Monal Gajjar

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$128,227
Base pay
$127,877
Overtime
$0
Other pay
$350
Benefits
$0
Total compensation
$128,227
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Orange
Middle name
P

Source-specific fields

Base Pay
$12,004
Cs/csu
Cs
Position Number
8105443725001
Salary Total
$11,089
Total Pay
$128,227

Monal Gajjar works as a Senior Hazardous Substances Engineer for Toxic Substances Control. Their status is full-time. Monal earned $128,227 in 2025. Union affiliation: R09.

Stuart St Clair

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$127,041
Base pay
$126,691
Overtime
$0
Other pay
$350
Benefits
$0
Total compensation
$127,041
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Fresno
Middle name
B

Source-specific fields

Base Pay
$13,016
Cs/csu
Cs
Position Number
8105453725001
Salary Total
$10,823
Total Pay
$127,041

Stuart St Clair is a Senior Hazardous Substances Engineer at Toxic Substances Control. They work full-time. 2025 total compensation came to $127,041. Their bargaining unit is R09.

Farah Itani

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$126,957
Base pay
$126,857
Overtime
$0
Other pay
$100
Benefits
$0
Total compensation
$126,957
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Orange
Middle name
M

Source-specific fields

Base Pay
$11,024
Cs/csu
Cs
Position Number
8105043725006
Salary Total
$10,693
Total Pay
$126,957

Farah Itani holds the role of Senior Hazardous Substances Engineer at Toxic Substances Control. Their status is full-time. In 2025, their total compensation was $126,957. They are represented by R09.

Ravinderjeet Gill

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$126,680
Base pay
$118,358
Overtime
$0
Other pay
$8,322
Benefits
$0
Total compensation
$126,680
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Sacramento
Middle name
S

Source-specific fields

Base Pay
$12,004
Cs/csu
Cs
Position Number
8105913725021
Salary Total
$11,644
Total Pay
$126,680

Ravinderjeet Gill works as a Senior Hazardous Substances Engineer for Toxic Substances Control. Their status is full-time. Ravinderjeet earned $126,680 in 2025. Their bargaining unit is R09.

Linda Ocampo

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$126,531
Base pay
$126,181
Overtime
$0
Other pay
$350
Benefits
$0
Total compensation
$126,531
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Orange
Middle name
M

Source-specific fields

Base Pay
$10,965
Cs/csu
Cs
Position Number
8101143725001
Salary Total
$10,636
Total Pay
$126,531

Linda Ocampo is a Senior Hazardous Substances Engineer at Toxic Substances Control. They work full-time. 2025 total compensation came to $126,531. Their bargaining unit is R09.