Principal Engineer I
Phoenix, AZ · On-site
Review and evaluate effluent treatment plant operations, engineering projects, and complex technical issues, providing actionable recommendations that improve performance, reliability, compliance ...
Phoenix, AZ · On-site
Review and evaluate effluent treatment plant operations, engineering projects, and complex technical issues, providing actionable recommendations that improve performance, reliability, compliance ...
Phoenix, AZ · On-site
Review and evaluate effluent treatment plant operations, engineering projects, and complex technical issues, providing actionable recommendations that improve performance, reliability, compliance ...
Phoenix, AZ · On-site
Review and evaluate effluent treatment plant operations, engineering projects, and complex technical issues, providing actionable recommendations that improve performance, reliability, compliance ...
Phoenix, AZ · On-site
Review and evaluate effluent treatment plant operations, engineering projects, and complex technical issues, providing actionable recommendations that improve performance, reliability, compliance ...
Phoenix, AZ · On-site
Review and evaluate effluent treatment plant operations, engineering projects, and complex technical issues, providing actionable recommendations that improve performance, reliability, compliance ...
Phoenix, AZ · On-site
Review and evaluate effluent treatment plant operations, engineering projects, and complex technical issues, providing actionable recommendations that improve performance, reliability, compliance ...
Pompano Beach, FL · On-site
$53K - $86K/yr
Effluent Treatment Plant Opening Date: 01/28/2026 Closing Date: Continuous Job Summary This Lean Six Sigma Utility position seeks a highly motivated individual for night shifts to join a diverse ...
Pompano Beach, FL · On-site
$53K - $86K/yr
Effluent Treatment Plant Opening Date: 01/28/2026 Closing Date: Continuous Job Summary This Lean Six Sigma Utility position seeks a highly motivated individual for night shifts to join a diverse ...
Phoenix, AZ · On-site
Review and evaluate effluent treatment plant operations, engineering projects, and complex technical issues, providing actionable recommendations that improve performance, reliability, compliance ...
Phoenix, AZ · On-site
Review and evaluate effluent treatment plant operations, engineering projects, and complex technical issues, providing actionable recommendations that improve performance, reliability, compliance ...
Phoenix, AZ · On-site
$112 - $160/hr
Review and evaluate effluent treatment plant operations, engineering projects, and complex technical issues, providing actionable recommendations that improve performance, reliability, compliance ...
Phoenix, AZ · On-site
$112 - $160/hr
Review and evaluate effluent treatment plant operations, engineering projects, and complex technical issues, providing actionable recommendations that improve performance, reliability, compliance ...
Pompano Beach, FL · On-site
$71K - $101K/yr
Effluent Treatment Plant Opening Date: 01/28/2026 Closing Date: Continuous Job Summary The Chief Utilities Treatment Plant Operator provides first-line supervision and operational leadership for an ...
Pompano Beach, FL · On-site
$71K - $101K/yr
Effluent Treatment Plant Opening Date: 01/28/2026 Closing Date: Continuous Job Summary The Chief Utilities Treatment Plant Operator provides first-line supervision and operational leadership for an ...
Operate wastewater treatment systems in compliance with NPDES permits and applicable local, state ... Help maintain permit-compliant effluent quality and reliable plant performance Required ...
Quick apply
Operate wastewater treatment systems in compliance with NPDES permits and applicable local, state ... Help maintain permit-compliant effluent quality and reliable plant performance Required ...
Ashland, VA · On-site
$34.20 - $39.25/hr
Help operate the equipment and processes at the Effluent Treatment Plant (ETP), including the anaerobic reactor, aerobic reactors, DAFs, chemical feed systems, pumps, blowers, and biogas system
Ashland, VA · On-site
$34.20 - $39.25/hr
Help operate the equipment and processes at the Effluent Treatment Plant (ETP), including the anaerobic reactor, aerobic reactors, DAFs, chemical feed systems, pumps, blowers, and biogas system
Fayetteville, NC · On-site
$23.29 - $30.68/hr
Checks influent and effluent points for visual detection of irregularities and proper functioning ... treatment plant operations and standard laboratory tests and procedures. * Ability to perform ...
Fayetteville, NC · On-site
$23.29 - $30.68/hr
Checks influent and effluent points for visual detection of irregularities and proper functioning ... treatment plant operations and standard laboratory tests and procedures. * Ability to perform ...
Fayetteville, NC · On-site
$23.29 - $30.68/hr
Checks influent and effluent points for visual detection of irregularities and proper functioning ... treatment plant operations and standard laboratory tests and procedures. * Ability to perform ...
Fayetteville, NC · On-site
$23.29 - $30.68/hr
Checks influent and effluent points for visual detection of irregularities and proper functioning ... treatment plant operations and standard laboratory tests and procedures. * Ability to perform ...
Operates facility effluent disposal systems in accordance with plant operating permit and operating protocol. * Maintains required solids inventory to achieve the best possible treatment. Controls ...
Operates facility effluent disposal systems in accordance with plant operating permit and operating protocol. * Maintains required solids inventory to achieve the best possible treatment. Controls ...
Operates effluent odor control equipment and automatic samplers. * Collects samples for analysis ... Vocational/technical training in wastewater treatment plant operation/equipment preferred. Will ...
Operates effluent odor control equipment and automatic samplers. * Collects samples for analysis ... Vocational/technical training in wastewater treatment plant operation/equipment preferred. Will ...
... effluent. The position also helps ensure that proper safety procedures, operating practices, and ... Senior Wastewater Treatment Plant Operator
... effluent. The position also helps ensure that proper safety procedures, operating practices, and ... Senior Wastewater Treatment Plant Operator
Savannah, GA · On-site
$24 - $26/hr
Operate and monitor effluent treatment plant equipment, including pumps, valves, aerators, mixers, filtration systems, and related treatment equipment. * Monitor treatment processes to ensure ...
Savannah, GA · On-site
$24 - $26/hr
Operate and monitor effluent treatment plant equipment, including pumps, valves, aerators, mixers, filtration systems, and related treatment equipment. * Monitor treatment processes to ensure ...
Waco, TX · On-site
$105K/yr
The Wastewater Treatment Plant Superintendent directs the operation, maintenance, regulatory ... Monitors treatment process performance, effluent quality, solids handling, lift station operations ...
Waco, TX · On-site
$105K/yr
The Wastewater Treatment Plant Superintendent directs the operation, maintenance, regulatory ... Monitors treatment process performance, effluent quality, solids handling, lift station operations ...
Waco, TX · On-site
$92K - $136K/yr
The Wastewater Treatment Plant Superintendent directs the operation, maintenance, regulatory ... Monitors treatment process performance, effluent quality, solids handling, lift station operations ...
Waco, TX · On-site
$92K - $136K/yr
The Wastewater Treatment Plant Superintendent directs the operation, maintenance, regulatory ... Monitors treatment process performance, effluent quality, solids handling, lift station operations ...
Amarillo, TX · On-site
Responsible for the quality of effluent as set by Federal, State, and City regulations. This ... treatment plant is preferred. KNOWLEDGE, SKILLS, AND ABILITIES * Ability to operate small office ...
Amarillo, TX · On-site
Responsible for the quality of effluent as set by Federal, State, and City regulations. This ... treatment plant is preferred. KNOWLEDGE, SKILLS, AND ABILITIES * Ability to operate small office ...
Operates facility effluent disposal systems in accordance with plant operating permit and operating protocol.Maintains required solids inventory to achieve the best possible treatment. Controls ...
Quick apply
Operates facility effluent disposal systems in accordance with plant operating permit and operating protocol.Maintains required solids inventory to achieve the best possible treatment. Controls ...
Operates facility effluent disposal systems in accordance with plant operating permit and operating protocol.Maintains required solids inventory to achieve the best possible treatment. Controls ...
Operates facility effluent disposal systems in accordance with plant operating permit and operating protocol.Maintains required solids inventory to achieve the best possible treatment. Controls ...
$30.5K - $35.5K
7% of jobs
$35.5K - $40.5K
13% of jobs
$41.7K is the 25th percentile. Wages below this are outliers.
$40.5K - $45.5K
21% of jobs
The median wage is $48.2K / yr.
$45.5K - $50.5K
17% of jobs
$50.5K - $55.5K
13% of jobs
$57.6K is the 75th percentile. Wages above this are outliers.
$55.5K - $60.5K
11% of jobs
$60.5K - $65.5K
6% of jobs
$65.5K - $70.5K
5% of jobs
$70.5K - $75.5K
3% of jobs
$75.5K - $80.5K
2% of jobs
$80.5K - $85.5K
2% of jobs
$30.5K
$53K
$85.5K
| Aspect | Effluent Treatment Plant Operator | Wastewater Treatment Plant Operator |
|---|---|---|
| Certifications | Typically requires a diploma or certification in environmental engineering or water treatment | Similar certifications, often requiring a wastewater treatment license |
| Work Environment | Operates in industrial or manufacturing facilities managing effluent discharge | Works mainly in municipal or urban wastewater treatment plants |
| Industry Usage | Common in industries like chemicals, pharmaceuticals, and manufacturing | Primarily in municipal water treatment facilities |
Both roles involve managing water treatment processes, but Effluent Treatment Plant Operators focus on industrial effluent, while Wastewater Treatment Plant Operators handle municipal sewage. Understanding these differences helps in choosing the right career path or job search focus.
The top searched job categories for Effluent Treatment Plant jobs are:

Full-time
Medical, Dental, Vision, Life, Retirement, PTO
Posted 4 days ago
8.2
Based on 141 frontline employees who took The Breakroom Quiz
8th of 41 rated mining
Why You Should Apply for This Job
At Freeport-McMoRan, we are committed to providing employment that recognizes excellence and encourages safe production, with a culture supported by our core values. Here, you'll find a collaborative environment where safety is a top priority. Apply Today!
Where You Will Work
Our global headquarters is in Phoenix, Arizona. Several hundred employees support our operations in finance, human resources, health and safety, information technology, planning, and more. Our flexible work program allows employees to work virtually as well as come together in person when needed at our Collaboration Hub in Phoenix and/or one of our site locations. Employees can work remotely from most states in the U.S., with the exception of California, Connecticut, Illinois, Kansas, Kentucky, Massachusetts, Michigan, New Hampshire, New York, North Carolina, Oklahoma and South Carolina. Additional states may be excluded from remote work based on business factors.Should the position shift to in-person (office/site) work in the future, the company will offer relocation benefits at that time, so long as the position meets the established eligibility for these benefits.
What You'll Do
Serve as a technical leader and subject matter expert, providing guidance, mentorship, and engineering expertise to support site operations, capital projects, and complex technical challenges. Apply deep knowledge of effluent treatment systems to improve operational performance, project outcomes, and regulatory compliance, while driving the adoption of leading practices across the organization. Lead complex problem-solving initiatives by translating technical challenges into actionable solutions, leveraging advanced engineering principles, analytical tools, and innovative approaches to optimize effluent treatment processes and enhance overall business performance.
What You Bring
Preferred Qualifications
What We Offer You
The estimated annual pay range for this role is currently$112,000-$160,000. This range reflects base salary only and does not include bonus payments, benefits or retirement contributions. Actual base pay is determined by experience, qualifications, skills and other job-related factors. This role is eligible for additional incentive compensation considerations based on company and individual performance. Additionally, this position is currently eligible for annual long-term incentive consideration. Long-term incentives are contingent upon authorized approval under the terms and conditions of the Company's plan and award agreements. More details will be shared during the hiring process.
Click here to view a sample of Total Rewards Estimate for this role.
What We Require
Freeport-McMoRan promotes a drug/alcohol-free work environment using mandatory pre-employment drug testing as allowed by applicable laws.
Ability to travel domestically up to 20% and internationally up to 50% is required.
Equal Opportunity Employer
Please be advised Freeport-McMoRan will never request payment for job-related expenses from applicants. If you receive any suspicious emails, please disregard them, and report the incident to HRSC@fmi.com.
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Mining of natural resources
10,000+ Employees
Phoenix, AZ, US
1912