California / Toxic Substances Control / Research Scientist II (Chemical Sciences)

Job-title file

Research Scientist II (Chemical Sciences)

Collect and analyze data to inform decisions, produce reports, and identify trends.

17 employees hold this title in Toxic Substances Control. Median total compensation for the role is $107,381, above the department median of $102,059.

Employees: 17
Total payroll: $1.7M
Role median: $107,381
Agency median: $102,059
Comparison: Above

What the records show

Role pay distribution

Pay distribution for this role

$29,076$119,893+

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

How total compensation varies among the 17 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.

Compare departments

This role across California

Research Scientist II (Chemical Sciences) is held in 3 California departments. In Toxic Substances Control, the median of $107,381 ranks #2 of 3.

Highest-paying departments for this role

Department of Public Health

$113,482 · 41

Department of Cannabis Control

$104,696 · 2

Median total compensation for the Research Scientist II (Chemical Sciences) role in other Californiadepartments (highest first). Each bar links to that department’s page for this role.

Compare jurisdictions

Research Scientist beyond California

This role is reported in 6 jurisdictions. In California, the median of $104,459 ranks #2 of 6. See Research Scientist across all of California →

Highest-paying jurisdictions for this role

$109,532 · 158

$96,654 · 395

$80,039 · 10

$73,100 · 13

$60,000 · 7

Median total compensation for comparable Research Scientistroles in other jurisdictions. Titles are matched by normalized name across sources, not identical job classification, and pay is not cost-of-living adjusted. Each bar links to that jurisdiction’s page for the role.

Record list

Employees with this title

Page 1

Roshni Sarala

Research Scientist II (Chemical Sciences)/Toxic Substances Control

2025 total comp

$121,160

Base pay: $120,985
Overtime: $0
Other pay: $175
Benefits: $0
Total compensation: $121,160
Employment type: Full-Time
Union / bargaining unit: R10
Work county: Alameda
Middle name: N

Source-specific fields

Base Pay: $9,799
Cs/csu: Cs
Position Number: 8103575581029
Salary Total: $10,441
Total Pay: $121,160

Roshni Sarala is a Research Scientist II (Chemical Sciences) at Toxic Substances Control. They work full-time. 2025 total compensation came to $121,160. They are represented by R10.

Anna Toma

Research Scientist II (Chemical Sciences)/Toxic Substances Control

2025 total comp

$117,200

Base pay: $117,025
Overtime: $0
Other pay: $175
Benefits: $0
Total compensation: $117,200
Employment type: Full-Time
Union / bargaining unit: R10
Work county: Los Angeles

Source-specific fields

Base Pay: $9,799
Cs/csu: Cs
Position Number: 8103585581002
Salary Total: $9,848
Total Pay: $117,200

Anna Toma is a Research Scientist II (Chemical Sciences) at Toxic Substances Control. They work full-time. 2025 total compensation came to $117,200. Their bargaining unit is R10.

Darcy Tarrant

Research Scientist II (Chemical Sciences)/Toxic Substances Control

2025 total comp

$116,382

Base pay: $116,132
Overtime: $0
Other pay: $250
Benefits: $0
Total compensation: $116,382
Employment type: Full-Time
Union / bargaining unit: R10
Work county: Alameda
Middle name: H

Source-specific fields

Base Pay: $9,799
Cs/csu: Cs
Position Number: 8103575581005
Salary Total: $9,706
Total Pay: $116,382

Darcy Tarrant works as a Research Scientist II (Chemical Sciences) for Toxic Substances Control. Their status is full-time. Darcy earned $116,382 in 2025. Their bargaining unit is R10.

Juan Villaromero

Research Scientist II (Chemical Sciences)/Toxic Substances Control

2025 total comp

$116,357

Base pay: $116,132
Overtime: $0
Other pay: $225
Benefits: $0
Total compensation: $116,357
Employment type: Full-Time
Union / bargaining unit: R10
Work county: Alameda
Middle name: F

Source-specific fields

Base Pay: $9,799
Cs/csu: Cs
Position Number: 8103575581027
Salary Total: $9,706
Total Pay: $116,357

Juan Villaromero is a Research Scientist II (Chemical Sciences) at Toxic Substances Control. They work full-time. 2025 total compensation came to $116,357. Their bargaining unit is R10.

Wayne Halozan

Research Scientist II (Chemical Sciences)/Toxic Substances Control

2025 total comp

$116,307

Base pay: $116,132
Overtime: $0
Other pay: $175
Benefits: $0
Total compensation: $116,307
Employment type: Full-Time
Union / bargaining unit: R10
Work county: Alameda
Middle name: K

Source-specific fields

Base Pay: $9,799
Cs/csu: Cs
Position Number: 8103575581028
Salary Total: $9,706
Total Pay: $116,307

At Toxic Substances Control, Wayne Halozan serves as a Research Scientist II (Chemical Sciences). They work full-time. Their 2025 pay totaled $116,307. Union affiliation: R10.

Mohammad Nikbakht

Research Scientist II (Chemical Sciences)/Toxic Substances Control

2025 total comp

$116,299

Base pay: $99,310
Overtime: $0
Other pay: $16,989
Benefits: $0
Total compensation: $116,299
Employment type: Full-Time
Union / bargaining unit: R10
Work county: Alameda
Middle name: M

Source-specific fields

Base Pay: $9,799
Cs/csu: Cs
Position Number: 8103575581020
Salary Total: $10,441
Total Pay: $116,299

At Toxic Substances Control, Mohammad Nikbakht serves as a Research Scientist II (Chemical Sciences). They work full-time. Their 2025 pay totaled $116,299. They are represented by R10.

Kenneth Neely Iii

Research Scientist II (Chemical Sciences)/Toxic Substances Control

2025 total comp

$115,374

Base pay: $115,324
Overtime: $0
Other pay: $50
Benefits: $0
Total compensation: $115,374
Employment type: Full-Time
Union / bargaining unit: R10
Work county: Alameda

Source-specific fields

Base Pay: $9,799
Cs/csu: Cs
Position Number: 8103575581001
Salary Total: $9,706
Total Pay: $115,374

Kenneth Neely Iii is a Research Scientist II (Chemical Sciences) at Toxic Substances Control. They work full-time. 2025 total compensation came to $115,374. Their bargaining unit is R10.

Eddie Lui

Research Scientist II (Chemical Sciences)/Toxic Substances Control

2025 total comp

$114,641

Base pay: $114,466
Overtime: $0
Other pay: $175
Benefits: $0
Total compensation: $114,641
Employment type: Full-Time
Union / bargaining unit: R10
Work county: Los Angeles
Middle name: T

Source-specific fields

Base Pay: $9,799
Cs/csu: Cs
Position Number: 8103585581005
Salary Total: $9,652
Total Pay: $114,641

At Toxic Substances Control, Eddie Lui serves as a Research Scientist II (Chemical Sciences). They work full-time. Their 2025 pay totaled $114,641. Union affiliation: R10.

Simranpreet Supra

Research Scientist II (Chemical Sciences)/Toxic Substances Control

2025 total comp

$107,381

Base pay: $107,131
Overtime: $0
Other pay: $250
Benefits: $0
Total compensation: $107,381
Employment type: Full-Time
Union / bargaining unit: R10
Work county: Alameda
Middle name: S

Source-specific fields

Base Pay: $9,304
Cs/csu: Cs
Position Number: 8103575581004
Salary Total: $9,228
Total Pay: $107,381

Simranpreet Supra is a Research Scientist II (Chemical Sciences) at Toxic Substances Control. They work full-time. 2025 total compensation came to $107,381. They are represented by R10.

Mehdi Nikbakht

Research Scientist II (Chemical Sciences)/Toxic Substances Control

2023 total comp

$106,968

Base pay: $106,668
Overtime: $0
Other pay: $300
Benefits: $0
Total compensation: $106,968
Employment type: Full-Time
Union / bargaining unit: R10
Work county: Alameda

Source-specific fields

Base Pay: $8,889
Cs/csu: Cs
Position Number: 8103575581020
Salary Total: $8,889
Total Pay: $106,968

Mehdi Nikbakht is a Research Scientist II (Chemical Sciences) at Toxic Substances Control. They work full-time. 2023 total compensation came to $106,968. They are represented by R10.

Bishnu Neupane

Research Scientist II (Chemical Sciences)/Toxic Substances Control

2025 total comp

$101,865

Base pay: $101,615
Overtime: $0
Other pay: $250
Benefits: $0
Total compensation: $101,865
Employment type: Full-Time
Union / bargaining unit: R10
Work county: Alameda
Middle name: P

Source-specific fields

Base Pay: $8,406
Cs/csu: Cs
Position Number: 8103575581006
Salary Total: $8,530
Total Pay: $101,865

At Toxic Substances Control, Bishnu Neupane serves as a Research Scientist II (Chemical Sciences). They work full-time. Their 2025 pay totaled $101,865. Their bargaining unit is R10.

Arely Ortiz

Research Scientist II (Chemical Sciences)/Toxic Substances Control

2025 total comp

$95,998

Base pay: $95,873
Overtime: $0
Other pay: $125
Benefits: $0
Total compensation: $95,998
Employment type: Full-Time
Union / bargaining unit: R10
Work county: Los Angeles
Middle name: G

Source-specific fields

Base Pay: $8,426
Cs/csu: Cs
Position Number: 8103585581006
Salary Total: $8,131
Total Pay: $95,998

Arely Ortiz is a Research Scientist II (Chemical Sciences) at Toxic Substances Control. They work full-time. 2025 total compensation came to $95,998. They are represented by R10.

Karen Cruz

Research Scientist II (Chemical Sciences)/Toxic Substances Control

2024 total comp

$92,261

Base pay: $91,986
Overtime: $0
Other pay: $275
Benefits: $0
Total compensation: $92,261
Employment type: Full-Time
Union / bargaining unit: R10
Work county: Los Angeles
Middle name: M

Source-specific fields

Base Pay: $8,153
Cs/csu: Cs
Position Number: 8103585581004
Salary Total: $8,153
Total Pay: $92,261

Karen Cruz works as a Research Scientist II (Chemical Sciences) for Toxic Substances Control. Their status is full-time. Karen earned $92,261 in 2024. Union affiliation: R10.

Maggie Addington

Research Scientist II (Chemical Sciences)/Toxic Substances Control

2024 total comp

$91,859

Base pay: $91,609
Overtime: $0
Other pay: $250
Benefits: $0
Total compensation: $91,859
Employment type: Full-Time
Union / bargaining unit: R10
Work county: Los Angeles
Middle name: E

Source-specific fields

Base Pay: $7,735
Cs/csu: Cs
Position Number: 8103585581003
Salary Total: $7,890
Total Pay: $91,859

Maggie Addington holds the role of Research Scientist II (Chemical Sciences) at Toxic Substances Control. Their status is full-time. In 2024, their total compensation was $91,859. Union affiliation: R10.

Nan Xie

Research Scientist II (Chemical Sciences)/Toxic Substances Control

2024 total comp

$89,556

Base pay: $89,331
Overtime: $0
Other pay: $225
Benefits: $0
Total compensation: $89,556
Employment type: Full-Time
Union / bargaining unit: R10
Work county: Fresno

Source-specific fields

Base Pay: $7,735
Cs/csu: Cs
Position Number: 8103585581006
Salary Total: $7,967
Total Pay: $89,556

At Toxic Substances Control, Nan Xie serves as a Research Scientist II (Chemical Sciences). They work full-time. Their 2024 pay totaled $89,556. They are represented by R10.

Ori Roe

Research Scientist II (Chemical Sciences)/Toxic Substances Control

2025 total comp

$89,521

Base pay: $85,950
Overtime: $0
Other pay: $3,570
Benefits: $0
Total compensation: $89,521
Employment type: Full-Time
Union / bargaining unit: R10
Work county: Los Angeles

Source-specific fields

Base Pay: $7,765
Cs/csu: Cs
Position Number: 8103585581004
Salary Total: $7,649
Total Pay: $89,521

Ori Roe holds the role of Research Scientist II (Chemical Sciences) at Toxic Substances Control. Their status is full-time. In 2025, their total compensation was $89,521. They are represented by R10.

Joginder Dhaliwal

Research Scientist II (Chemical Sciences)/Toxic Substances Control

2024 total comp

$29,076

Base pay: $29,076
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $29,076
Employment type: Intermittent
Union / bargaining unit: R10
Work county: Alameda
Middle name: S

Source-specific fields

Base Pay: $8,889
Cs/csu: Cs
Position Number: 8103575581901
Salary Total: $51
Total Pay: $29,076

Joginder Dhaliwal holds the role of Research Scientist II (Chemical Sciences) at Toxic Substances Control. Their status is intermittent. In 2024, their total compensation was $29,076. Union affiliation: R10.