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Percival Hawthorne-Mensah

Water Treatment Plant Operator
Toledo, OH, United States

Professional Summary

Licensed Water Treatment Plant Operator with 7+ years operating Class III surface-water plants serving municipal and industrial customers in Northwest Ohio. Experienced in SCADA monitoring, chemical feed systems, jar testing, and regulatory reporting under Ohio EPA and Safe Drinking Water Act rules. Known for cutting non-compliance events and keeping turbidity and residual chlorine within tight process windows.

Employment History

Water Treatment Plant Operator III
Toledo Water Department / Collins Park Water Treatment Plant · Toledo, OH
Mar, 2021
Operate and optimize a 120+ MGD surface-water treatment train (coagulation, flocculation, sedimentation, filtration, disinfection) across rotating shifts. Maintain finished-water turbidity below 0.15 NTU (95th percentile) and free chlorine residual in the 1.0–1.4 mg/L band; zero Ohio EPA MCL violations in the last 24 months. Run jar tests and adjust alum/polymer doses after raw-water turbidity spikes from Maumee River events; reduced chemical overfeed ~12% YoY. Monitor SCADA (ClearSCADA/Wonderware), PLCs, and online analyzers; escalate process upsets within 10 minutes and document in plant logs. Lead monthly filter backwash optimization reviews; extended average filter run length by ~18% without breakthrough.
Water Treatment Plant Operator II
Bowling Green Municipal Utilities · Bowling Green, OH
Jun, 2017 · Feb, 2021
Operated a 10 MGD conventional plant; collected and analyzed process samples for turbidity, pH, alkalinity, chlorine, and fluoride per SOPs. Prepared monthly MOR and eDMR data packages for Ohio EPA with zero late submissions over 3 consecutive years. Calibrated online turbidimeters, chlorine analyzers, and pH probes; cut out-of-calibration downtime ~30%. Assisted with clearwell and distribution flushing coordination during seasonal taste-and-odor events.
Water Plant Operator Trainee / Operator I
Northwest Ohio Regional Water · Perrysburg, OH
Aug, 2015 · May, 2017
Completed supervised rounds on pumps, chemical feeders, and filters; logged readings and performed jar-test assists. Supported hypochlorite and fluoride feed system maintenance; replaced tubing and verified flow rates. Earned Operator I then Operator II eligibility while finishing required contact hours.

Education

High School Diploma
Start High School · Toledo, OH
Aug, 1995 · Jun, 2001

Skills

SCADA
ClearSCADA
PLC basics
Jar testing
Coagulation/flocculation
Filtration
Chlorination
Turbidity control
MOR/eDMR reporting
Ohio EPA compliance
Sample collection
Pump and chemical feed maintenance
Lockout/tagout
Confined space awareness
Microsoft Excel
Process troubleshooting

Courses

Ohio EPA Class III Water Supply Operator Certificate (active)
Ohio EPA
Ohio EPA Class II Water Supply Operator Certificate
Ohio EPA
Confined Space Entry Awareness
OSHA-aligned training
HAZWOPER 24-Hour
OSHA 29 CFR 1910.120
CPR/First Aid
American Red Cross

Languages

English · native

Hobbies

Watershed stewardship, amateur radio