The average salary for a water treatment plant operator in Connecticut is around $78,820 per year.
Avg Salary
Water treatment plant operators earn an average yearly salary of $78,820.
Wages typically start from $60,900 and go up to $98,850.
2% below national average Updated in 2025
Water treatment plant operator earnings by seniority
90th percentile
Top-level water treatment plant operator earnings begin at:
$47.53 per hour
$98,850 per year
75th percentile
Senior-level water treatment plant operator earnings begin at:
$44.88 per hour
$93,340 per year
50th percentile
Mid-level water treatment plant operator earnings begin at:
$37.90 per hour
$78,820 per year
25th percentile
Junior-level water treatment plant operator earnings begin at:
$31.09 per hour
$64,670 per year
10th percentile
Starting level water treatment plant operator earnings begin at:
$29.28 per hour
$60,900 per year
Approximate values based on highest and lowest earning segments.
Water treatment plant operator salary by state
| State Name | Average Salary |
|---|---|
| California | $81,770 |
| Nevada | $81,440 |
| Washington | $80,800 |
| District of Columbia | $78,890 |
| Connecticut | $78,820 |
| New Jersey | $78,760 |
| Minnesota | $74,670 |
| Colorado | $74,200 |
| Oregon | $69,720 |
| Massachusetts | $68,550 |
| Illinois | $67,810 |
| Hawaii | $65,560 |
| Delaware | $64,940 |
| New York | $63,990 |
| Vermont | $63,640 |
| Wisconsin | $63,550 |
| Pennsylvania | $63,310 |
| Wyoming | $63,260 |
| New Hampshire | $62,940 |
| Maryland | $61,870 |
| Maine | $61,870 |
| Rhode Island | $61,820 |
| Arizona | $61,340 |
| Utah | $61,290 |
| Nebraska | $61,220 |
| Iowa | $60,990 |
| North Dakota | $60,470 |
| Alaska | $60,160 |
| Virginia | $59,420 |
| Michigan | $59,270 |
| Ohio | $59,170 |
| Florida | $59,030 |
| Montana | $58,040 |
| Indiana | $53,540 |
| South Dakota | $53,370 |
| Idaho | $52,210 |
| South Carolina | $52,090 |
| Alabama | $51,870 |
| North Carolina | $51,680 |
| Tennessee | $50,670 |
| Missouri | $49,940 |
| Texas | $49,460 |
| Georgia | $48,930 |
| New Mexico | $48,190 |
| Guam | $47,610 |
| West Virginia | $47,560 |
| Kansas | $46,780 |
| Mississippi | $46,480 |
| Louisiana | $46,210 |
| Oklahoma | $45,890 |
| Kentucky | $45,430 |
| Arkansas | $44,320 |
| Puerto Rico | $27,910 |
How do water treatment plant operator salaries compare to similar careers?
Water treatment plant operators earn about the same as related careers in Connecticut. On average, they make more than sheet metal workers.
| Career | Median Salary |
|---|---|
| Water treatment plant operator salary | $79K |
| Electrician salary | $78K |
| Plumber salary | $77K |
| Pipefitter salary | $77K |
| Sheet metal worker salary | $79K |
Source: CareerExplorer (Aggregated)