California / Toxic Substances Control / Hazardous Substances Engineer

Job-title file

Hazardous Substances Engineer

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

135 employees hold this title in Toxic Substances Control. Median total compensation for the role is $110,456, above the department median of $102,059.

Employees: 135
Total payroll: $14.2M
Role median: $110,456
Agency median: $102,059
Comparison: Above

What the records show

Role pay distribution

Pay distribution for this role

-$4,596$149,638+

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

How total compensation varies among the 135 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

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 $112,965 for this role, 13% below that figure — about the 37th 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 · $112,965

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 5% above that national figure, about the 55th 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 · $112,965

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 124 of 135 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 $110,456, 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.

Compare departments

This role across California

Hazardous Substances Engineer is held in 2 California departments. In Toxic Substances Control, the median of $110,456 ranks #1 of 2.

Highest-paying departments for this role

Office of Secty Envirmtl Protect

$55,716 · 1

Median total compensation for the Hazardous Substances Engineer role in other Californiadepartments (highest first). Each bar links to that department’s page for this role.

Record list

Employees with this title

Page 1

Brittany Bennett

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp

$110,949

Base pay: $110,599
Overtime: $0
Other pay: $350
Benefits: $0
Total compensation: $110,949
Employment type: Full-Time
Union / bargaining unit: R09
Work county: Sacramento
Middle name: R

Source-specific fields

Base Pay: $9,808
Cs/csu: Cs
Position Number: 8101513726001
Salary Total: $9,514
Total Pay: $110,949

Brittany Bennett holds the role of Hazardous Substances Engineer at Toxic Substances Control. Their status is full-time. In 2025, their total compensation was $110,949. They are represented by R09.

Amerjit Chahal

Hazardous Substances Engineer/Toxic Substances Control

2023 total comp

$110,456

Base pay: $109,826
Overtime: $0
Other pay: $630
Benefits: $0
Total compensation: $110,456
Employment type: Full-Time
Union / bargaining unit: R09
Work county: Sacramento
Middle name: S

Source-specific fields

Base Pay: $9,803
Cs/csu: Cs
Position Number: 8105913726001
Salary Total: $9,803
Total Pay: $110,456

Amerjit Chahal is a Hazardous Substances Engineer at Toxic Substances Control. They work full-time. 2023 total compensation came to $110,456. They are represented by R09.

Ayse Bozlaker

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp

$110,409

Base pay: $110,059
Overtime: $0
Other pay: $350
Benefits: $0
Total compensation: $110,409
Employment type: Full-Time
Union / bargaining unit: R09
Work county: Alameda

Source-specific fields

Base Pay: $9,341
Cs/csu: Cs
Position Number: 8101723726001
Salary Total: $9,311
Total Pay: $110,409

At Toxic Substances Control, Ayse Bozlaker serves as a Hazardous Substances Engineer. They work full-time. Their 2025 pay totaled $110,409. Their bargaining unit is R09.

Patrik Kim

Hazardous Substances Engineer/Toxic Substances Control

2024 total comp

$110,230

Base pay: $109,680
Overtime: $0
Other pay: $550
Benefits: $0
Total compensation: $110,230
Employment type: Full-Time
Union / bargaining unit: R09
Work county: Alameda

Source-specific fields

Base Pay: $9,476
Cs/csu: Cs
Position Number: 8105123726003
Salary Total: $9,476
Total Pay: $110,230

Patrik Kim is a Hazardous Substances Engineer at Toxic Substances Control. They work full-time. 2024 total compensation came to $110,230. Their bargaining unit is R09.

Rostislav Boytsan

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp

$110,043

Base pay: $109,693
Overtime: $0
Other pay: $350
Benefits: $0
Total compensation: $110,043
Employment type: Full-Time
Union / bargaining unit: R09
Work county: Sacramento
Middle name: Y

Source-specific fields

Base Pay: $9,808
Cs/csu: Cs
Position Number: 8106503726001
Salary Total: $9,514
Total Pay: $110,043

Rostislav Boytsan holds the role of Hazardous Substances Engineer at Toxic Substances Control. Their status is full-time. In 2025, their total compensation was $110,043. Their bargaining unit is R09.

Christopher Ioan

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp

$110,043

Base pay: $109,693
Overtime: $0
Other pay: $350
Benefits: $0
Total compensation: $110,043
Employment type: Full-Time
Union / bargaining unit: R09
Work county: Orange
Middle name: M

Source-specific fields

Base Pay: $9,808
Cs/csu: Cs
Position Number: 8105143726159
Salary Total: $9,514
Total Pay: $110,043

Christopher Ioan holds the role of Hazardous Substances Engineer at Toxic Substances Control. Their status is full-time. In 2025, their total compensation was $110,043. Their bargaining unit is R09.

Ahmad Abou Ghaida

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp

$109,590

Base pay: $109,240
Overtime: $0
Other pay: $350
Benefits: $0
Total compensation: $109,590
Employment type: Full-Time
Union / bargaining unit: R09
Work county: Orange
Middle name: H

Source-specific fields

Base Pay: $9,808
Cs/csu: Cs
Position Number: 8105043726016
Salary Total: $9,514
Total Pay: $109,590

At Toxic Substances Control, Ahmad Abou Ghaida serves as a Hazardous Substances Engineer. They work full-time. Their 2025 pay totaled $109,590. They are represented by R09.

Sara Vela

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp

$108,355

Base pay: $108,355
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $108,355
Employment type: Full-Time
Union / bargaining unit: R09
Work county: Los Angeles
Middle name: A

Source-specific fields

Base Pay: $9,808
Cs/csu: Cs
Position Number: 8105433726001
Salary Total: $9,514
Total Pay: $108,355

Sara Vela is a Hazardous Substances Engineer at Toxic Substances Control. They work full-time. 2025 total compensation came to $108,355. They are represented by R09.

James Araneo

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp

$108,273

Base pay: $107,923
Overtime: $0
Other pay: $350
Benefits: $0
Total compensation: $108,273
Employment type: Full-Time
Union / bargaining unit: R09
Work county: Sacramento

Source-specific fields

Base Pay: $9,341
Cs/csu: Cs
Position Number: 8105013726001
Salary Total: $9,061
Total Pay: $108,273

James Araneo is a Hazardous Substances Engineer at Toxic Substances Control. They work full-time. 2025 total compensation came to $108,273. Their bargaining unit is R09.

Jue Hyun Lee

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp

$108,163

Base pay: $107,059
Overtime: $930
Other pay: $175
Benefits: $0
Total compensation: $108,163
Employment type: Full-Time
Union / bargaining unit: R09
Work county: Sacramento

Source-specific fields

Base Pay: $9,341
Cs/csu: Cs
Position Number: 8105113726105
Salary Total: $9,061
Total Pay: $108,163

Jue Hyun Lee is a Hazardous Substances Engineer at Toxic Substances Control. They work full-time. 2025 total compensation came to $108,163. Union affiliation: R09.

Lina Hijazi

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp

$107,326

Base pay: $106,976
Overtime: $0
Other pay: $350
Benefits: $0
Total compensation: $107,326
Employment type: Full-Time
Union / bargaining unit: R09
Work county: Orange
Middle name: S

Source-specific fields

Base Pay: $9,296
Cs/csu: Cs
Position Number: 8105043726002
Salary Total: $9,017
Total Pay: $107,326

Lina Hijazi holds the role of Hazardous Substances Engineer at Toxic Substances Control. Their status is full-time. In 2025, their total compensation was $107,326. They are represented by R09.

Rouzbeh Tehrani

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp

$107,234

Base pay: $107,059
Overtime: $0
Other pay: $175
Benefits: $0
Total compensation: $107,234
Employment type: Full-Time
Union / bargaining unit: R09
Work county: Alameda

Source-specific fields

Base Pay: $9,341
Cs/csu: Cs
Position Number: 8101723726004
Salary Total: $9,061
Total Pay: $107,234

At Toxic Substances Control, Rouzbeh Tehrani serves as a Hazardous Substances Engineer. They work full-time. Their 2025 pay totaled $107,234. They are represented by R09.

Lina Cervania

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp

$106,977

Base pay: $106,627
Overtime: $0
Other pay: $350
Benefits: $0
Total compensation: $106,977
Employment type: Full-Time
Union / bargaining unit: R09
Work county: Sacramento

Source-specific fields

Base Pay: $9,341
Cs/csu: Cs
Position Number: 8106513726001
Salary Total: $9,061
Total Pay: $106,977

Lina Cervania works as a Hazardous Substances Engineer for Toxic Substances Control. Their status is full-time. Lina earned $106,977 in 2025. Their bargaining unit is R09.

Ahmad Alhroob

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp

$106,627

Base pay: $106,627
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $106,627
Employment type: Full-Time
Union / bargaining unit: R09
Work county: Los Angeles
Middle name: S

Source-specific fields

Base Pay: $9,341
Cs/csu: Cs
Position Number: 8105363726901
Salary Total: $9,061
Total Pay: $106,627

Ahmad Alhroob is a Hazardous Substances Engineer at Toxic Substances Control. They work full-time. 2025 total compensation came to $106,627. Union affiliation: R09.

Patrick Fassell

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp

$106,113

Base pay: $105,763
Overtime: $0
Other pay: $350
Benefits: $0
Total compensation: $106,113
Employment type: Full-Time
Union / bargaining unit: R09
Work county: Sacramento

Source-specific fields

Base Pay: $9,341
Cs/csu: Cs
Position Number: 8105613726003
Salary Total: $9,061
Total Pay: $106,113

Patrick Fassell is a Hazardous Substances Engineer at Toxic Substances Control. They work full-time. 2025 total compensation came to $106,113. They are represented by R09.

Zhilan Zhang

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp

$105,763

Base pay: $105,763
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $105,763
Employment type: Full-Time
Union / bargaining unit: R09
Work county: Orange

Source-specific fields

Base Pay: $9,341
Cs/csu: Cs
Position Number: 8105043726003
Salary Total: $9,061
Total Pay: $105,763

Zhilan Zhang holds the role of Hazardous Substances Engineer at Toxic Substances Control. Their status is full-time. In 2025, their total compensation was $105,763. Their bargaining unit is R09.

Ashley Wong

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp

$105,612

Base pay: $105,262
Overtime: $0
Other pay: $350
Benefits: $0
Total compensation: $105,612
Employment type: Full-Time
Union / bargaining unit: R09
Work county: Alameda
Middle name: N

Source-specific fields

Base Pay: $9,341
Cs/csu: Cs
Position Number: 8103423726001
Salary Total: $9,311
Total Pay: $105,612

At Toxic Substances Control, Ashley Wong serves as a Hazardous Substances Engineer. They work full-time. Their 2025 pay totaled $105,612. Their bargaining unit is R09.

Zerin Alam

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp

$105,392

Base pay: $105,042
Overtime: $0
Other pay: $350
Benefits: $0
Total compensation: $105,392
Employment type: Full-Time
Union / bargaining unit: R09
Work county: Sacramento
Middle name: B

Source-specific fields

Base Pay: $9,341
Cs/csu: Cs
Position Number: 8103403726309
Salary Total: $9,061
Total Pay: $105,392

At Toxic Substances Control, Zerin Alam serves as a Hazardous Substances Engineer. They work full-time. Their 2025 pay totaled $105,392. They are represented by R09.

Joseph Arreola

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp

$105,325

Base pay: $104,900
Overtime: $0
Other pay: $425
Benefits: $0
Total compensation: $105,325
Employment type: Full-Time
Union / bargaining unit: R09
Work county: Orange
Middle name: I

Source-specific fields

Base Pay: $9,341
Cs/csu: Cs
Position Number: 8105643726002
Salary Total: $9,061
Total Pay: $105,325

Joseph Arreola is a Hazardous Substances Engineer at Toxic Substances Control. They work full-time. 2025 total compensation came to $105,325. Their bargaining unit is R09.

Amirmansour Farzan

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp

$105,250

Base pay: $104,900
Overtime: $0
Other pay: $350
Benefits: $0
Total compensation: $105,250
Employment type: Full-Time
Union / bargaining unit: R09
Work county: Sacramento

Source-specific fields

Base Pay: $9,341
Cs/csu: Cs
Position Number: 8103403726191
Salary Total: $9,061
Total Pay: $105,250

At Toxic Substances Control, Amirmansour Farzan serves as a Hazardous Substances Engineer. They work full-time. Their 2025 pay totaled $105,250. They are represented by R09.

Gregory Gentile

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp

$105,250

Base pay: $104,900
Overtime: $0
Other pay: $350
Benefits: $0
Total compensation: $105,250
Employment type: Full-Time
Union / bargaining unit: R09
Work county: Los Angeles
Middle name: P

Source-specific fields

Base Pay: $9,341
Cs/csu: Cs
Position Number: 8105133726003
Salary Total: $9,061
Total Pay: $105,250

At Toxic Substances Control, Gregory Gentile serves as a Hazardous Substances Engineer. They work full-time. Their 2025 pay totaled $105,250. They are represented by R09.

Stephen Niou

Hazardous Substances Engineer/Toxic Substances Control

2023 total comp

$105,086

Base pay: $99,574
Overtime: $0
Other pay: $5,512
Benefits: $0
Total compensation: $105,086
Employment type: Full-Time
Union / bargaining unit: R09
Work county: Los Angeles
Middle name: S

Source-specific fields

Base Pay: $11,567
Cs/csu: Cs
Position Number: 8105143726901
Salary Total: $12,203
Total Pay: $105,086

Stephen Niou is a Hazardous Substances Engineer at Toxic Substances Control. They work full-time. 2023 total compensation came to $105,086. They are represented by R09.

Greta Fischer

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp

$104,818

Base pay: $104,468
Overtime: $0
Other pay: $350
Benefits: $0
Total compensation: $104,818
Employment type: Full-Time
Union / bargaining unit: R09
Work county: Orange
Middle name: C

Source-specific fields

Base Pay: $9,341
Cs/csu: Cs
Position Number: 8105643726001
Salary Total: $9,061
Total Pay: $104,818

Greta Fischer is a Hazardous Substances Engineer at Toxic Substances Control. They work full-time. 2025 total compensation came to $104,818. Their bargaining unit is R09.

Shayna Avila

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp

$104,643

Base pay: $104,468
Overtime: $0
Other pay: $175
Benefits: $0
Total compensation: $104,643
Employment type: Full-Time
Union / bargaining unit: R09
Work county: Orange
Middle name: T

Source-specific fields

Base Pay: $9,341
Cs/csu: Cs
Position Number: 8101143726001
Salary Total: $9,061
Total Pay: $104,643

Shayna Avila works as a Hazardous Substances Engineer for Toxic Substances Control. Their status is full-time. Shayna earned $104,643 in 2025. Their bargaining unit is R09.

Hae Lee

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp

$104,461

Base pay: $104,286
Overtime: $0
Other pay: $175
Benefits: $0
Total compensation: $104,461
Employment type: Full-Time
Union / bargaining unit: R09
Work county: Los Angeles
Middle name: C

Source-specific fields

Base Pay: $9,191
Cs/csu: Cs
Position Number: 8105363726901
Salary Total: $9,099
Total Pay: $104,461

Hae Lee works as a Hazardous Substances Engineer for Toxic Substances Control. Their status is full-time. Hae earned $104,461 in 2025. They are represented by R09.