Water and Wastewater Treatment Plant and System Operator Salary Information in Washington

The average annual and hourly salaries for water and wastewater treatment plant and system operators in the state of Washington are shown in Table 1 and Table 2, respectively. The comparison of the salary statistics of water and wastewater treatment plant and system operators amongst Washington cities is shown in Table 3. The salary statistics are based on the national compensation survey conducted by the U.S. Bureau of Labor Statistics in 2014 and published in May 2015 [1].

Table 1 & 2. Annual & Hourly Salary of Water and Wastewater Treatment Plant and System Operators in Washington

Percentile BracketAverage Annual Salary
90th Percentile Wage
$87,600
75th Percentile Wage
$75,370
50th Percentile Wage
$61,830
25th Percentile Wage
$51,570
10th Percentile Wage
$42,410

Table 1 shows the average annual salary for water and wastewater treatment plant and system operators in Washington in 5 percentile scales. The average annual salary for the 90th percentile (the top 10 percent of the highest paid) is $87,600. The median (50th percentile) annual salary is $61,830. The average annual salary for the bottom 10 percent is $42,410.

Percentile BracketAverage Hourly Salary
90th Percentile Wage
$42.12
75th Percentile Wage
$36.24
50th Percentile Wage
$29.73
25th Percentile Wage
$24.79
10th Percentile Wage
$20.39

Table 2 shows the average hourly salary for water and wastewater treatment plant and system operators in Washington in 5 percentile scales. The average hourly salary for the 90th percentile is $42.12. The median hourly salary is $29.73. The average hourly salary for the bottom 10 percent is $20.39.

Table 3. Salary Trend

YearAverage Annual SalaryGrowth (%)
2014 $61,830 0.08%
2013 $61,780 9.15%
2012 $56,600 3.25%
2011 $54,820 4.14%
2010 $52,640 -

Table 3 shows the salary trend for water and wastewater treatment plant and system operators in state of Washington from 2010 to 2014. We note that from 2010 to 2014 the average salary has increased by 17.46%. We note that in 2013 the average salary increased by 9.15%. We also note that the average annual wage had a relatively large growth of 3.25% in the year 2012 and a relatively large increase of 4.14% in 2011.

Table 4. Average Water and Wastewater Treatment Plant and System Operator Wage in Washington vs. Related Jobs

OccupationAverage Wage
Water and Wastewater Treatment Plant and System Operators
$61,830
Chemical Plant and System Operators
$63,890
Gas Plant Operators
$61,790
Petroleum Pump System Operators, Refinery Operators, and Gaugers
$66,720
Other Plant and System Operators
$62,420
Power Distributors and Dispatchers
$96,230
Power Plant Operators
$88,330

Table 5. Median Annual Salary of Water and Wastewater Treatment Plant and System Operators in Washington Cities

Table 5 shows the median annual salary of water and wastewater treatment plant and system operators in some Washington cities and metropolitan areas. We note that the median annual salary of water and wastewater treatment plant and system operators in state of Washington ranges from $40,590 to $81,870. The highest paying area for water and wastewater treatment plant and system operators in Washington is Kennewick-Pasco-Richland with a median annual salary of $81,870. The second highest paying city/area in Washington State is Seattle-Bellevue-Everett (mean annual salary $71,110). The lowest paying area is Eastern Washington nonmetropolitan area with a median annual salary of $40,590.

Cities/Areas Median Annual Salary
Kennewick-Pasco-Richland
$81,870
Seattle-Bellevue-Everett
$71,110
Seattle-Tacoma-Bellevue
$70,130
Tacoma
$67,530
Mount Vernon-Anacortes
$63,840
Wenatchee-East Wenatchee
$59,290
Bremerton-Silverdale
$58,770
Bellingham
$57,630
Spokane
$56,260
Portland-Vancouver-Hillsboro
$56,020
Southwestern Washington nonmetropolitan area
$55,770
Central Washington nonmetropolitan area
$52,630
Lewiston
$51,160
Northwestern Washington nonmetropolitan area
$50,850
Yakima
$48,500
Eastern Washington nonmetropolitan area
$40,590

Water and Wastewater Treatment Plant and System Operator Salary by State

Alabama       Alaska       Arizona       Arkansas       California       Colorado       Connecticut       Delaware       D.C.       Florida       Georgia       Hawaii       Idaho       Illinois       Indiana       Iowa       Kansas       Kentucky       Louisiana       Maine       Maryland       Massachusetts       Michigan       Minnesota       Mississippi       Missouri       Montana       Nebraska       Nevada       New Hampshire       New Jersey       New Mexico       New York       North Carolina       North Dakota       Ohio       Oklahoma       Oregon       Pennsylvania       Puerto Rico       Rhode Island       South Carolina       South Dakota       Tennessee       Texas       Utah       Vermont       Virginia       Washington       West Virginia       Wisconsin       Wyoming      



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