Metro Nashville / W&S Sw Water Quality
Agency file
The W&S Sw Water Quality protects natural resources and the environment — conservation, parks and wildlife, and environmental regulation.
In 2025, this agency had 34 employees with median total compensation of $50,423; the highest distinct record was $144,690.
What the records show
These summaries compare pay within the agency before listing individual records.
How 2025 total compensation is spread across the 34 employees. Each bar is a pay range; taller bars mean more people earn in that range. The amber line marks the median ($50,423) — half earn less, half more. The far-right bar collects the highest earners.
What an average paycheck here is made of — base salary versus overtime, other pay (bonuses, allowances), and benefits. A large overtime or other-pay share means take-home often exceeds base salary.
The pay ladder for this department. Someone at the 90th percentile earns $93,376 — more than 90% of the department; the 10th percentile earns $23,651. The shaded band is the middle half of employees (25th–75th percentile).
The most common job titles in this department by headcount, with the median total compensation for each. Click a title to see everyone who holds it.
Trend
How this department's total payroll, headcount, and median pay changed across the 11 published years.
| Year | Total payroll | Employees | Median pay |
|---|---|---|---|
| 2015 | $625.5K — | 14 — | $47,020 — |
| 2016 | $792.7K ▲ 26.7% | 20 ▲ 42.9% | $35,751 ▼ 24.0% |
| 2017 | $922K ▲ 16.3% | 19 ▼ 5.0% | $49,274 ▲ 37.8% |
| 2018 | $1.1M ▲ 15.8% | 22 ▲ 15.8% | $47,949 ▼ 2.7% |
| 2019 | $1.2M ▲ 11.6% | 25 ▲ 13.6% | $48,599 ▲ 1.4% |
| 2020 | $1.2M ▲ 1.1% | 26 ▲ 4.0% | $51,166 ▲ 5.3% |
| 2021 | $1.3M ▲ 8.7% | 42 ▲ 61.5% | $31,804 ▼ 37.8% |
| 2022 | $1.4M ▲ 5.7% | 33 ▼ 21.4% | $46,789 ▲ 47.1% |
| 2023 | $1.3M ▼ 3.2% | 34 ▲ 3.0% | $40,124 ▼ 14.2% |
| 2024 | $134.2K ▼ 90.0% | 1 ▼ 97.1% | $134,174 ▲ 234.4% |
| 2025 | $1.9M ▲ 1328.7% | 34 ▲ 3300.0% | $50,423 ▼ 62.4% |
Record list
Page 1
Engineering Technician 3/W&S Sw Water Quality
Source-specific fields
Katherine O'Hara works as a Engineering Technician 3 for W&S Sw Water Quality. Katherine earned $51,228 in 2016.