Water and Wastewater Treatment Plant and System Operators Salary in California
BLS OEWS May 2025 • 28 metro areas • California
Water and Wastewater Treatment Plant and System Operators in California earn a median salary of $80,851 per year on average across 28 metro and nonmetro areas, +38.8% vs the national median of $58,260. An estimated 11,110 water and wastewater treatment plant and system operators are employed across California, with salaries ranging from $59,550 to $123,390 depending on location.
$80,851
Avg median salary in California
$123,390
Highest paying metro
$59,550
Lowest paying metro
11,110
Employed in California
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Water and Wastewater Treatment Plant and System Operators
inWater and Wastewater Treatment Plant and System Operators salaries by city in California
| Metro area | Median salary | 25th pct | 75th pct | Employed |
|---|---|---|---|---|
| San Francisco, CA | $123,390 | $97,840 | $132,730 | 1,160 |
| San Jose, CA | $106,440 | $86,570 | $133,560 | 400 |
| Vallejo, CA | $101,670 | $75,790 | $111,660 | 190 |
| Napa, CA | $99,450 | $80,860 | $115,310 | 90 |
| Salinas, CA | $90,610 | $69,110 | $108,620 | 140 |
| Santa Cruz, CA | $85,790 | $65,960 | $101,400 | 90 |
| Sacramento, CA | $84,960 | $74,360 | $101,230 | 890 |
| Santa Rosa, CA | $83,630 | $67,730 | $97,820 | 220 |
| Santa Maria, CA | $83,260 | $66,830 | $101,980 | 260 |
| Modesto, CA | $82,790 | $61,920 | $91,800 | 220 |
| Riverside, CA | $82,500 | $66,120 | $100,470 | 1,580 |
| Yuba City, CA | $80,810 | $67,020 | $100,530 | 90 |
| Los Angeles, CA | $80,690 | $65,570 | $100,200 | 2,070 |
| San Luis Obispo, CA | $80,480 | $65,130 | $97,180 | 180 |
| Stockton, CA | $79,830 | $64,130 | $99,300 | 240 |
| San Diego, CA | $79,390 | $67,210 | $100,770 | 900 |
| Merced, CA | $78,320 | $60,180 | $78,650 | 90 |
| Oxnard, CA | $76,240 | $60,600 | $96,780 | 300 |
| El Centro, CA | $75,790 | $64,300 | $95,300 | 100 |
| Chico, CA | $75,280 | $55,880 | $98,300 | 110 |
| Redding, CA | $75,110 | $60,950 | $103,160 | 130 |
| Fresno, CA | $71,750 | $52,000 | $81,600 | 420 |
| Eastern Sierra-Mother Lode Region of California | $71,650 | $55,600 | $85,480 | 150 |
| North Valley-Northern Mountains Region of California | $64,840 | $50,330 | $89,150 | 180 |
| Visalia, CA | $64,710 | $48,420 | $76,990 | 190 |
| Bakersfield, CA | $63,550 | $55,520 | $92,620 | 440 |
| Hanford, CA | $61,360 | $50,730 | $74,320 | 70 |
| North Coast Region of California | $59,550 | $50,410 | $77,160 | 210 |