GCGovComp.app

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 figureabout 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

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

Betelhem Girma

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$18,342
Base pay
$18,342
Overtime
$0
Other pay
$0
Benefits
$0
Total compensation
$18,342
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Alameda

Source-specific fields

Base Pay
$11,298
Cs/csu
Cs
Position Number
8105123726005
Salary Total
$11,209
Total Pay
$18,342

Betelhem Girma works as a Hazardous Substances Engineer for Toxic Substances Control. Their status is full-time. Betelhem earned $18,342 in 2025. Their bargaining unit is R09.

Andreina Mendoza

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$17,450
Base pay
$17,450
Overtime
$0
Other pay
$0
Benefits
$0
Total compensation
$17,450
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Sacramento

Source-specific fields

Base Pay
$6,488
Cs/csu
Cs
Position Number
8105913726202
Salary Total
$6,293
Total Pay
$17,450

At Toxic Substances Control, Andreina Mendoza serves as a Hazardous Substances Engineer. They work full-time. Their 2025 pay totaled $17,450. Their bargaining unit is R09.

James Pappas

Hazardous Substances Engineer/Toxic Substances Control

2023 total comp
$16,345
Base pay
$16,295
Overtime
$0
Other pay
$50
Benefits
$0
Total compensation
$16,345
Employment type
Intermittent
Union / bargaining unit
R09
Work county
Sacramento
Middle name
M

Source-specific fields

Base Pay
$11,230
Cs/csu
Cs
Position Number
8106513726901
Salary Total
$65
Total Pay
$16,345

James Pappas works as a Hazardous Substances Engineer for Toxic Substances Control. Their status is intermittent. James earned $16,345 in 2023. They are represented by R09.

Zackary Knowles

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$14,589
Base pay
$14,589
Overtime
$0
Other pay
$0
Benefits
$0
Total compensation
$14,589
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Placer
Middle name
W

Source-specific fields

Base Pay
$6,488
Cs/csu
Cs
Position Number
8106513726211
Salary Total
$6,293
Total Pay
$14,589

At Toxic Substances Control, Zackary Knowles serves as a Hazardous Substances Engineer. They work full-time. Their 2025 pay totaled $14,589. Their bargaining unit is R09.

Brianna Singh

Hazardous Substances Engineer/Toxic Substances Control

2025 total comp
$14,519
Base pay
$14,519
Overtime
$0
Other pay
$0
Benefits
$0
Total compensation
$14,519
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Sacramento

Source-specific fields

Base Pay
$9,712
Cs/csu
Cs
Position Number
8105413726007
Salary Total
$8,524
Total Pay
$14,519

Brianna Singh is a Hazardous Substances Engineer at Toxic Substances Control. They work full-time. 2025 total compensation came to $14,519. Their bargaining unit is R09.

Robert Romero

Hazardous Substances Engineer/Toxic Substances Control

2023 total comp
$12,521
Base pay
$12,386
Overtime
$0
Other pay
$135
Benefits
$0
Total compensation
$12,521
Employment type
Full-Time
Union / bargaining unit
R09
Work county
Los Angeles
Middle name
R

Source-specific fields

Base Pay
$11,230
Cs/csu
Cs
Position Number
8105143726159
Salary Total
$11,848
Total Pay
$12,521

At Toxic Substances Control, Robert Romero serves as a Hazardous Substances Engineer. They work full-time. Their 2023 pay totaled $12,521. Their bargaining unit is R09.