Pierce County
Wastewater Treatment Plant Laboratory Supervisor
Wan Jiang in 2025 was employed at Pierce County and had an annual salary of $123,257, according to public records. This salary was 35 percent higher than the average and 29 percent higher than the median salary in Pierce County.
Pierce County records show Wan Jiang held two jobs from 2019 to 2025. From 2019 to 2025 Wan Jiang held job of Wastewater Treatment Plant Laboratory Supervisor.
According to the public records employee's salary increased by $5,163 from 2024 to 2025, which is a 4.4 percent rise. Since 2019, the salary has increased by $21,144, a total rise of 20.7 percent.
| Year | 2025 |
| Full Name | Wan Jiang |
| Job Title | Wastewater Treatment Plant Laboratory Supervisor |
| State | Washington |
| Employer | Pierce County |
| Annual Wage | $123,257 |
| Pay Plan |
*Information may include where available: salary, bonuses, benefits, retirement contributions, pensions, and other financial data.
| Employer Name | Pierce County |
| Year | 2025 |
| Number of Employees | 3,676 |
| Average Annual Wage | $90,967 |
| Median Annual Wage | $95,518 |
Wan Jiang (2024)Wastewater Treatment Plant Laboratory Supervisor | View Person Details |
Wan Jiang (2023)P Wastewater Treatment Plant Laboratory Supervisor | View Person Details |
Wan Jiang (2022)Wastewater Treatment Plant Laboratory Supervisor | View Person Details |
Wan Jiang (2021)Wastewater Treatment Plant Laboratory Supervisor | View Person Details |
Wan Jiang (2020)Wastewater Treatment Plant Laboratory Supervisor | View Person Details |
Wan Jiang (2019)Wastewater Treatment Plant Laboratory Supervisor | View Person Details |
Timothy Hagan G (2025)Planner at Pierce County | View Person Details |
Autumn Yoke (2025)Strategic Planner at Pierce County | View Person Details |
Georgia Cookson L (2025)Financial Services Manager at Pierce County | View Person Details |
Justin Henderson C (2025)County Attorney at Pierce County | View Person Details |
Glenn Glover D (2025)Investigation Specialist at Pierce County | View Person Details |
William Ford H (2025)Appraiser at Pierce County | View Person Details |
Nina Caldwell N (2025)County Attorney at Pierce County | View Person Details |
Jon Jones S (2025)Facilities Maintenance Mechanic at Pierce County | View Person Details |
Shella Marie Swain V (2025)Environmental Biologist at Pierce County | View Person Details |
Diane Ryba M (2025)Environmental Biologist at Pierce County | View Person Details |