Water Treatment Plant Daily Inspection Checklist [FREE PDF]

Water treatment plant daily inspections are mandated under the EPA Safe Drinking Water Act (SDWA) and enforced through the Surface Water Treatment Rule (40 CFR Part 141) to ensure continuous production of safe, potable water for public consumption. Operators must monitor turbidity, disinfectant residuals, chemical feed systems, and filtration performance every operating day, with deviations triggering immediate corrective actions and potential public notification requirements. This checklist hel

  • Industry: Water Utilities
  • Frequency: Daily
  • Estimated Time: 60-90 minutes
  • Role: Power Plant Operator
  • Total Items: 43
  • Compliance: EPA 40 CFR Part 141 - National Primary Drinking Water Regulations, EPA 40 CFR Part 142 - National Primary Drinking Water Regulations Implementation, EPA Surface Water Treatment Rule (SWTR) - 40 CFR 141.70-141.75, OSHA 29 CFR 1910.119 - Process Safety Management (applicable to chlorine handling), DOE 10 CFR Part 851 - Worker Safety and Health Program

Raw Water Intake & Source Water

Assess raw water source conditions, intake screening equipment, and upstream contamination indicators before treatment begins.

  • Is the raw water intake structure clear of debris, ice, or obstruction?
  • Are intake bar screens and traveling screens clean and operational?
  • Is raw water turbidity within the acceptable range for current treatment train capacity?
  • Record current raw water turbidity (NTU)?
  • Is there any visible evidence of upstream contamination, algae bloom, or unusual odor at the intake?
  • Record raw water pH reading?

Coagulation & Flocculation

Verify coagulant and polymer feed systems, chemical dosing rates, and flocculation basin performance to ensure adequate particle removal.

  • Are coagulant feed pumps operating at the correct dose rate for current flow and raw water conditions?
  • Are coagulant storage tanks adequately stocked with sufficient chemical inventory for next 72 hours?
  • Is flocculation basin showing adequate floc formation with visible pin floc development?
  • Are flash mix and flocculation basin agitators operating at correct speed and free of unusual vibration?
  • Are chemical feed lines, injection points, and metering pumps free of leaks or blockages?

Sedimentation & Clarification

Inspect sedimentation basins and clarifiers for proper sludge removal, overflow rates, and settled water turbidity targets.

  • Is settled water turbidity exiting clarifiers within target specification (typically <2 NTU)?
  • Record current settled water turbidity reading?
  • Are sludge blanket levels within acceptable range and not carryover to the effluent weirs?
  • Are sludge withdrawal and blowdown systems operating per scheduled intervals?
  • Are clarifier launder troughs and overflow weirs free of algae, debris, or fouling?

Filtration Systems

Monitor individual filter performance, turbidity compliance, head loss, and backwash scheduling to ensure effective pathogen removal.

  • Are all operational filters producing effluent turbidity at or below 0.3 NTU?
  • Is individual filter turbidity monitoring equipment (continuous turbidimeters) operating and calibrated?
  • Are filter head loss readings within normal range and are filters due for backwash within next inspection cycle?
  • Were any filter turbidity spikes (>0.5 NTU for 15 min) detected in the last 24-hour period?
  • Are filter underdrains and air scour systems free of blockages or differential pressure anomalies?
  • Attach photograph of the individual filter monitoring panel showing current turbidity readings?

Disinfection Systems & CT Compliance

Verify chlorine or other disinfectant feed systems, residual levels, and CT calculations to ensure regulatory inactivation credit for Giardia and viruses.

  • Is the primary disinfectant feed system (chlorine, chloramine, UV, ozone) operating at the correct dose?
  • Is the calculated CT value (concentration × contact time) meeting the required inactivation credit for current temperature and pH?
  • Record combined filter effluent (pre-distribution) free chlorine residual?
  • Are chlorine gas or bulk chemical storage areas free of leaks and within secondary containment?
  • Are chlorine leak detectors and emergency shutdown systems functional with no active alarms?
  • Record water temperature at point of CT calculation measurement?

Pumping & Mechanical Systems

Inspect high-service and transfer pumps, HVAC, and ancillary mechanical equipment for operational reliability and safe condition.

  • Are all high-service pumps operating within normal current draw, vibration, and temperature parameters?
  • Are pump motor bearings and mechanical seals free of unusual noise, heat, or leakage?
  • Are emergency standby generators tested monthly and fuel level adequate for 72-hour operation?
  • Are chemical metering pumps calibrated and verified to deliver correct flow rates?
  • Are HVAC systems in chemical storage and control rooms operating to prevent hazardous gas accumulation?

Finished Water & Distribution Interface

Confirm finished water quality at plant exit and clearwell storage conditions before release to the distribution system.

  • Is finished water pH within the optimized corrosion control treatment (OCCT) target range?
  • Record finished water pH at clearwell outlet?
  • Are clearwell storage tanks at adequate operating levels to meet demand and maintain system pressure?
  • Is the distribution system entry point (first customer) chlorine residual at or above 0.2 mg/L?
  • Are cross-connection control and backflow prevention devices on plant connections verified as functional?

Safety, Compliance & Shift Reporting

Document overall operational status, regulatory deviations, safety incidents, and complete the shift handover record.

  • Were any SDWA reportable turbidity or disinfectant residual violations detected during this shift?
  • Are all required daily log entries completed and signed in the plant operations log?
  • Were any chemical spills, safety incidents, or near misses recorded during this shift?
  • Is all required PPE (chemical splash goggles, face shield, gloves, FR clothing) available and in serviceable condition?
  • Provide shift summary including any abnormal conditions, equipment issues, or items for relief operator?

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Why Use This Water Treatment Plant Daily Inspection Checklist [FREE PDF]?

This water treatment plant daily inspection checklist [free pdf] helps water utilities teams maintain compliance and operational excellence. Designed for power plant operator professionals, this checklist covers 43 critical inspection points across 8 sections. Recommended frequency: daily.

Ensures compliance with EPA 40 CFR Part 141 - National Primary Drinking Water Regulations, EPA 40 CFR Part 142 - National Primary Drinking Water Regulations Implementation, EPA Surface Water Treatment Rule (SWTR) - 40 CFR 141.70-141.75, OSHA 29 CFR 1910.119 - Process Safety Management (applicable to chlorine handling), DOE 10 CFR Part 851 - Worker Safety and Health Program. Regulatory-aligned for audit readiness and inspection documentation.

Frequently Asked Questions

What does the Water Treatment Plant Daily Inspection Checklist [FREE PDF] cover?

This checklist covers 43 inspection items across 8 sections: Raw Water Intake & Source Water, Coagulation & Flocculation, Sedimentation & Clarification, Filtration Systems, Disinfection Systems & CT Compliance, Pumping & Mechanical Systems, Finished Water & Distribution Interface, Safety, Compliance & Shift Reporting. It is designed for water utilities operations and compliance.

How often should this checklist be completed?

This checklist should be completed daily. Each completion takes approximately 60-90 minutes.

Who should use this Water Treatment Plant Daily Inspection Checklist [FREE PDF]?

This checklist is designed for Power Plant Operator professionals in the water utilities industry. It can be used for self-assessments, team audits, and regulatory compliance documentation.

Can I download this checklist as a PDF?

Yes, this checklist is available as a free PDF download. You can also use it digitally in the POPProbe mobile app for real-time data capture, photo documentation, and automatic reporting.

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