MICHAEL DUFFY
Fresno,CA
Summary
Certified Water and Wastewater Treatment Operator with hands-on experience in municipal and private systems. Skilled in treatment process monitoring, SCADA/HMI operations, Chemical adjustments, equipment maintenance, and regulatory compliance. Proven reliability in quality control, data tracking, and cross-department communication.
Overview
12
12
years of professional experience
1
1
Certification
Work History
Quality Control / Tracker
Missouri Vocational Enterprise
11.2024 - 12.2026
- Perform accurate data entry and production tracking
- Review, verify, and distribute production parts
- Communicate with supervisors to monitor workflow progress and completion timelines
- Read and interpret blueprints, assemblies, calipers, and rulers to ensure quality standards
Wastewater Treatment Operator
City of Saint Joseph
06.2020 - 01.2022
- Monitored and recorded wastewater treatment processes
- Adjusted systems operations as needed to maintain compliance
- Operated pumps and valves via SCADA, HMI, and manual controls
- Submitted maintenance requests and coordinated repairs
- Inspected outstations receiving influent waters
Water/ Wastewater Treatment Operator
California Water Services
03.2015 - 12.2019
- Operated and monitored multiple treatment plants daily
- Recorded operational readings through HMI systems
- Performed chemical adjustments to meet treatment standards
- Conducted routine maintenance on treatment systems and equipment
- Cleaned, calibrated, and maintained water and wastewater probes and meters
Education
Credits Toward Water & Wastewater Certifications - Water & Wastewater Treatment
American Water College
SacramentoGED -
Caesar Chavez Adult School
Fresno, CA05-2006
Skills
- Water and Wastewater Treatment Operations
- SCADA 7 HMI Monitoring
- Chemical Dosing & Process Adjustment
- Pump, Valve & System Operations
- Instrument Calibration & Meeting
- Preventive & Routine Maintenance
- Data Entry & Quality Control
- Blueprint & Assembly Reading
Certification
- California Grade 2 Water Treatment Operator- #40033
- Former California Distribution Operator
- Former Missouri Grade C Wastewater Operator
Timeline
Quality Control / Tracker
Missouri Vocational Enterprise
11.2024 - 12.2026
Wastewater Treatment Operator
City of Saint Joseph
06.2020 - 01.2022
Water/ Wastewater Treatment Operator
California Water Services
03.2015 - 12.2019
Credits Toward Water & Wastewater Certifications - Water & Wastewater Treatment
American Water College
GED -
Caesar Chavez Adult School