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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

Dennis Callahan

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$150,735
Base pay
$150,385
Overtime
$0
Other pay
$350
Benefits
$0
Total compensation
$150,735
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Sacramento
Middle name
M

Source-specific fields

Base Pay
$13,228
Cs/csu
Cs
Position Number
8105913725501
Salary Total
$12,831
Total Pay
$150,735

Dennis Callahan is a Senior Hazardous Substances Engineer at Toxic Substances Control. They work full-time. 2025 total compensation came to $150,735. Union affiliation: R09.

Jian Liu

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$150,735
Base pay
$150,385
Overtime
$0
Other pay
$350
Benefits
$0
Total compensation
$150,735
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Los Angeles

Source-specific fields

Base Pay
$13,228
Cs/csu
Cs
Position Number
8105913725502
Salary Total
$12,831
Total Pay
$150,735

Jian Liu works as a Senior Hazardous Substances Engineer for Toxic Substances Control. Their status is full-time. Jian earned $150,735 in 2025. Union affiliation: R09.

Lauren Steinbaum

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$150,223
Base pay
$149,773
Overtime
$0
Other pay
$450
Benefits
$0
Total compensation
$150,223
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Sacramento
Middle name
E

Source-specific fields

Base Pay
$13,228
Cs/csu
Cs
Position Number
8106503725001
Salary Total
$12,831
Total Pay
$150,223

Lauren Steinbaum holds the role of Senior Hazardous Substances Engineer at Toxic Substances Control. Their status is full-time. In 2025, their total compensation was $150,223. Union affiliation: R09.

Farrukh Ahmad

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$148,889
Base pay
$148,539
Overtime
$0
Other pay
$350
Benefits
$0
Total compensation
$148,889
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Orange

Source-specific fields

Base Pay
$13,227
Cs/csu
Cs
Position Number
8105443725009
Salary Total
$12,830
Total Pay
$148,889

At Toxic Substances Control, Farrukh Ahmad serves as a Senior Hazardous Substances Engineer. They work full-time. Their 2025 pay totaled $148,889. Their bargaining unit is R09.

Vandana Mistry

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$148,278
Base pay
$147,928
Overtime
$0
Other pay
$350
Benefits
$0
Total compensation
$148,278
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Los Angeles
Middle name
C

Source-specific fields

Base Pay
$13,227
Cs/csu
Cs
Position Number
8105363725901
Salary Total
$12,830
Total Pay
$148,278

Vandana Mistry holds the role of Senior Hazardous Substances Engineer at Toxic Substances Control. Their status is full-time. In 2025, their total compensation was $148,278. Their bargaining unit is R09.

Safouh Sayed

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$147,935
Base pay
$147,585
Overtime
$0
Other pay
$350
Benefits
$0
Total compensation
$147,935
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Orange
Middle name
A

Source-specific fields

Base Pay
$12,004
Cs/csu
Cs
Position Number
8105043725004
Salary Total
$12,304
Total Pay
$147,935

Safouh Sayed works as a Senior Hazardous Substances Engineer for Toxic Substances Control. Their status is full-time. Safouh earned $147,935 in 2025. They are represented by R09.

Carolina Szpak Chamecki

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$145,942
Base pay
$139,797
Overtime
$0
Other pay
$6,145
Benefits
$0
Total compensation
$145,942
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Los Angeles

Source-specific fields

Base Pay
$12,004
Cs/csu
Cs
Position Number
8105833725001
Salary Total
$11,644
Total Pay
$145,942

Carolina Szpak Chamecki is a Senior Hazardous Substances Engineer at Toxic Substances Control. They work full-time. 2025 total compensation came to $145,942. They are represented by R09.

Daniel Cordero Jr

Senior Hazardous Substances Engineer/Toxic Substances Control

2023 total comp
$145,496
Base pay
$142,181
Overtime
$0
Other pay
$3,315
Benefits
$0
Total compensation
$145,496
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Los Angeles

Source-specific fields

Base Pay
$11,425
Cs/csu
Cs
Position Number
8105143725019
Salary Total
$12,053
Total Pay
$145,496

At Toxic Substances Control, Daniel Cordero Jr serves as a Senior Hazardous Substances Engineer. They work full-time. Their 2023 pay totaled $145,496. Union affiliation: R09.

Rameshwor Kaphle

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$145,219
Base pay
$139,797
Overtime
$0
Other pay
$5,422
Benefits
$0
Total compensation
$145,219
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Los Angeles

Source-specific fields

Base Pay
$12,004
Cs/csu
Cs
Position Number
8106533725018
Salary Total
$11,644
Total Pay
$145,219

At Toxic Substances Control, Rameshwor Kaphle serves as a Senior Hazardous Substances Engineer. They work full-time. Their 2025 pay totaled $145,219. Their bargaining unit is R09.

Andrew Reimanis

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$144,716
Base pay
$144,366
Overtime
$0
Other pay
$350
Benefits
$0
Total compensation
$144,716
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Sacramento
Middle name
R

Source-specific fields

Base Pay
$13,016
Cs/csu
Cs
Position Number
8105113725003
Salary Total
$12,626
Total Pay
$144,716

Andrew Reimanis holds the role of Senior Hazardous Substances Engineer at Toxic Substances Control. Their status is full-time. In 2025, their total compensation was $144,716. They are represented by R09.

Kimiye Touchi

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$144,691
Base pay
$144,366
Overtime
$0
Other pay
$325
Benefits
$0
Total compensation
$144,691
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Sacramento
Middle name
T

Source-specific fields

Base Pay
$13,016
Cs/csu
Cs
Position Number
8105113725002
Salary Total
$12,626
Total Pay
$144,691

At Toxic Substances Control, Kimiye Touchi serves as a Senior Hazardous Substances Engineer. They work full-time. Their 2025 pay totaled $144,691. They are represented by R09.

Diana Phelps

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$144,673
Base pay
$144,498
Overtime
$0
Other pay
$175
Benefits
$0
Total compensation
$144,673
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
8103403725001
Salary Total
$12,304
Total Pay
$144,673

Diana Phelps holds the role of Senior Hazardous Substances Engineer at Toxic Substances Control. Their status is full-time. In 2025, their total compensation was $144,673. Their bargaining unit is R09.

Heather Lee

Senior Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$143,575
Base pay
$143,225
Overtime
$0
Other pay
$350
Benefits
$0
Total compensation
$143,575
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Sacramento
Middle name
T

Source-specific fields

Base Pay
$14,305
Cs/csu
Cs
Position Number
8103403725301
Salary Total
$11,895
Total Pay
$143,575

Heather Lee holds the role of Senior Hazardous Substances Engineer at Toxic Substances Control. Their status is full-time. In 2025, their total compensation was $143,575. They are represented by R09.