As of April 01, 2025, the average annual salary for a Stationary Engineer III in O Fallon, MO is $65,192. According to Salary.com, salaries can range from a low of $55,794 to a high of $79,095, with most professionals earning between $60,273 and $72,470.
| Annual Salary |
Monthly Pay |
Weekly Pay |
Hourly Wage |
|
| 75th Percentile | $75,631 | $6,303 | $1,454 | $36 |
| Average | $68,036 | $5,670 | $1,308 | $33 |
| 25th Percentile | $62,902 | $5,242 | $1,210 | $30 |
An entry-level Stationary Engineer III with under 1 year experience makes about $62,989. With less than 2 years of experience, a mid-level Stationary Engineer III makes around $63,356. After 2-4 years, the Stationary Engineer III pay rises to about $64,678. Those senior Stationary Engineer III with 5-8 years of experience earn roughly $67,908, and those Stationary Engineer III having 8 years or more experience are expected to earn about $69,320 on average.
| Levels | Salary |
|---|---|
| Entry Level Stationary Engineer III | $62,989 |
| Intermediate Level Stationary Engineer III | $63,356 |
| Senior Level Stationary Engineer III | $64,678 |
| Specialist Level Stationary Engineer III | $67,908 |
| Expert Level Stationary Engineer III | $69,320 |
| Entry Level | 7% |
| Mid Level | 7% |
| Senior Level | 5% |
| Top Level | 0% |
| Experienced | 2% |
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Each competency has five to ten behavioral assertions that can be observed, each with a corresponding performance level (from one to five) that is required for a particular job.
Commitment: An agreement or pledge to do something in the future a commitment to improve conditions at the prison especially : an engagement to assume a financial obligation at a future date.
Preventative Maintenance: Developing and implementing maintenance strategies to increase equipment life expectancy and avoid unplanned downtime.
Water Testing: Water testing is a broad description for various procedures used to analyze water quality. Millions of water quality tests are carried out daily to fulfill regulatory requirements and to maintain safety.
| Skill | Salary | Demand |
|---|---|---|
|
Risk Management
|
$77,579 |
19%
|
|
Chemistry
|
$76,927 |
18%
|
|
Scheduling
|
$69,756 |
7%
|
|
Automatic Control
|
$69,104 |
6%
|
|
Communicates Effectively
|
$67,800 |
4%
|
|
Initiative
|
$67,148 |
3%
|
