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Overnight Wastewater Operator Class 3 Jobs (NOW HIRING)

Wastewater Operator Class IV

Laurel, MS · On-site

$18.75 - $26/hr

H2O is currently seeking a Wastewater Operator (Class IV) to join our team in Laurel, Mississippi. The Benefits Overall remuneration includes: * Health Insurance, Dental, Vision & Telemedicine.

Wastewater Operator Class IV

Laurel, MS · On-site

$18.75 - $26/hr

H2O is currently seeking a Wastewater Operator (Class IV) to join our team in Laurel, Mississippi. The Benefits Overall remuneration includes: * Health Insurance, Dental, Vision & Telemedicine.

Wastewater Treatment Operator

Avon, CO · On-site

$27.74 - $52.05/hr

Must possess a Colorado Wastewater Operator Class D certification within one yearof hire * Must ... Operator III (requires CCWP Operator B License): $32.11 - $44.96 * Senior Operator (requires CCWP ...

Wastewater Operator

Fayetteville, AR · On-site

$20.75 - $28.75/hr

The Wastewater Operator III is responsible for the operation and maintenance of equipment at medium ... Class III Wastewater license required. RESPONSIBILITIES * Operates a variety of equipment/machinery ...

State Wastewater Operator License (Class I, II, or higher). * Experience in wastewater treatment plant operations or related utility work. * Knowledge of SCADA systems, pumps, motors, and laboratory ...

State Wastewater Operator License (Class I, II, or higher). * Experience in wastewater treatment plant operations or related utility work. * Knowledge of SCADA systems, pumps, motors, and laboratory ...

State Wastewater Operator License (Class I, II, or higher). * Experience in wastewater treatment plant operations or related utility work. * Knowledge of SCADA systems, pumps, motors, and laboratory ...

State Wastewater Operator License (Class I, II, or higher). * Experience in wastewater treatment plant operations or related utility work. * Knowledge of SCADA systems, pumps, motors, and laboratory ...

State Wastewater Operator License (Class I, II, or higher). * Experience in wastewater treatment plant operations or related utility work. * Knowledge of SCADA systems, pumps, motors, and laboratory ...

State Wastewater Operator License (Class I, II, or higher). * Experience in wastewater treatment plant operations or related utility work. * Knowledge of SCADA systems, pumps, motors, and laboratory ...

The class is responsible for monitoring wastewater treatment processes, adjusting chemical or ... Wastewater Operator C - $21.14 per hour The purpose of the class is to operate and maintain ...

The class works according to set procedures under direct supervision. Wastewater Operator C - $21.14 per hour The purpose of the class is to operate and maintain wastewater treatment plant according ...

Wastewater Operator

Millsboro, DE · On-site

$19 - $26.25/hr

Overnight/3rd Shift. $5,000 Sign On Bonus (Must be licensed). Duties/Activities Required by Job ... Class II or higher; two years in a position of Direct Responsible Charge. * Level III or IV WW ...

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Overnight Wastewater Operator Class 3 information

See salary details

$14

$28

$44

How much do overnight wastewater operator class 3 jobs pay per hour?

As of Aug 27, 2026, the average hourly pay for overnight wastewater operator class 3 in the United States is $28.21, according to ZipRecruiter salary data. Most workers in this role earn between $20.91 and $33.65 per hour, depending on experience, location, and employer.

What is an overnight wastewater operator class 3?

Overnight Wastewater Operator Class 3 jobs involve monitoring and managing the treatment of wastewater during overnight shifts at treatment facilities. Operators are responsible for ensuring that water treatment processes run smoothly, conducting tests, adjusting chemical levels, and troubleshooting equipment issues to maintain compliance with environmental regulations. A Class 3 certification typically indicates a mid-level operator who has met specific training and experience requirements set by regulatory agencies. Working overnight requires attention to detail and the ability to respond to emergencies or system alarms promptly. These jobs are critical for maintaining safe and effective wastewater treatment around the clock.

What skills and qualifications are needed to be an overnight wastewater operator class 3?

To thrive as an Overnight Wastewater Operator Class 3, you need a solid understanding of wastewater treatment processes, safety regulations, and hold a valid Class 3 Wastewater Operator certification. Familiarity with SCADA systems, laboratory testing equipment, and routine monitoring tools is typically required. Attention to detail, problem-solving skills, and the ability to work independently during night shifts are crucial soft skills for this role. These competencies ensure safe, compliant, and efficient plant operations, especially during off-hours when immediate decision-making is essential.

What challenges do overnight wastewater operator class 3 face and how can they be managed?

Overnight Wastewater Operator Class 3s often work with minimal supervision and must be prepared to troubleshoot issues independently during off-peak hours. Common challenges include responding to unexpected equipment malfunctions, maintaining alertness through long shifts, and ensuring all regulatory and safety protocols are followed when staffing is limited. Building strong communication with the day team and maintaining thorough shift logs help facilitate smooth transitions and consistent plant operations. Operators can manage these challenges by staying organized, continuously updating their technical skills, and utilizing available monitoring technology to detect anomalies early.

What is the difference between Overnight Wastewater Operator Class 3 vs Wastewater Treatment Plant Operator?

AspectOvernight Wastewater Operator Class 3Wastewater Treatment Plant Operator
CertificationsRequires Wastewater Operator Certification, typically Class 3Requires Wastewater Operator Certification, often Class 1 or 2
Work EnvironmentPrimarily overnight shifts at wastewater treatment facilitiesDay and night shifts at treatment plants
Job DutiesMonitoring, basic maintenance, and operational tasks during overnight hoursFull range of plant operations, including troubleshooting and process control

Overnight Wastewater Operator Class 3 and Wastewater Treatment Plant Operator roles both require wastewater certification and involve plant operations. The main difference lies in shift timing and scope of responsibilities, with the Class 3 role focusing on overnight shifts and basic tasks, while the Plant Operator may handle broader duties across shifts.

What cities are hiring for Overnight Wastewater Operator Class 3 jobs?

Cities with the most Overnight Wastewater Operator Class 3 job openings:

What are the most commonly searched types of Wastewater Operator Class 3 jobs?

The most popular types of Wastewater Operator Class 3 jobs are:

What states have the most Overnight Wastewater Operator Class 3 jobs?

States with the most job openings for Overnight Wastewater Operator Class 3 jobs include:

Infographic showing various Overnight Wastewater Operator Class 3 job openings in the United States as of July 2026, with employment types broken down into 1% As Needed, 58% Full Time, 40% Part Time, and 1% Contract. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution, with an average salary of $58,681 per year, or $28.2 per hour.

Wastewater Operator Class IV

Laurel, MS • On-site


H2O Innovation Inc.
501 - 1,000 employees

7.5

Company rating: 7.5 out of 10

Based on 7 frontline employees who took The Breakroom Quiz

271st of 495 rated machine equipment manufacturers

Good employer

Good training

Learn new skills


$18.75 - $26/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 22 days ago


Job description

H2O Innovation provides public works management services & operations assistance for water & wastewater treatment plants to municipalities, government organizations, and businesses across North America.


 H2O is currently seeking a Wastewater Operator (Class IV) to join our team in Laurel, Mississippi.


 The Benefits

Overall remuneration includes:

 

  • Health Insurance, Dental, Vision & Telemedicine.
  • Health Savings Account.
  • Life Insurance.
  • 401K Retirement Plan with Employer Contributions.
  • Paid Vacation & Sick Days.


Key Responsibilities

  • Oversee and operate wastewater treatment processes to ensure compliance and efficiency
  • Monitor plant operations and make adjustments as needed
  • Analyze lab and operational data to maintain treatment performance
  • Troubleshoot process, mechanical, and equipment issues
  • Coordinate and support maintenance of plant equipment
  • Maintain accurate logs, reports, and compliance documentation
  • Lead and support lower-level operators
  • Respond to alarms, upsets, and emergency situations
  • Assist with inspections, audits, and regulatory coordination
  • Enforce safety procedures and company standards


The Skills We Are Looking For 

  • Active Level IV Wastewater Operator License (or equivalent)
  • Strong knowledge of wastewater treatment processes and regulations
  • Experience in municipal wastewater plant operations
  • Ability to monitor and adjust plant processes and systems
  • Mechanical aptitude and troubleshooting skills
  • Leadership ability and experience supporting a team
  • Strong communication and problem-solving skills
  • Commitment to safety and regulatory compliance


We are an Equal Opportunity Employer and value diversity in our workforce.  #INDEED 
#ZR



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