Water Plant Chemical Feed System Calibration Log

This template is for water treatment chemical feed systems, including pumps used for coagulant, chlorine, fluoride, or similar dosing applications. It captures inspection details, calibration setup, measured feed rate, tolerance checks, operating condition, and corrective actions. It is designed for a single pump or feed point, but can be duplicated for multiple pumps in the same plant.

Use it whenever a chemical feed pump is calibrated, verified after maintenance, or checked after a process upset, chemical change, or control adjustment. Many facilities also use it on a scheduled basis as part of preventive maintenance or operator rounds. The right cadence depends on your SOP, water quality risk, and equipment criticality.

An operator, maintenance technician, or water treatment specialist who is trained on the system and the calibration procedure should complete it. The person performing the check should be able to isolate the pump safely, verify the setpoint, measure actual output, and recognize deficiencies such as leaks or unstable operation. A supervisor can review failed calibrations or repeated non-conformances.

Yes, it supports documentation practices commonly expected under public water system operations, utility SOPs, and quality programs. It also helps demonstrate control of chemical handling, safe work practices, and equipment verification consistent with OSHA general industry expectations and applicable state or local water authority requirements. If your site follows NSF/ANSI, AWWA, or local health department rules, customize the acceptance criteria accordingly.

Common issues include a pump that is set to the correct stroke but delivers the wrong actual rate, calibration equipment that is out of date, and leaks at tubing, fittings, or valves. The log also helps catch missing PPE, inaccessible eyewash or shower stations, and failed backflow or check valve performance. These are the kinds of problems that can affect water quality and operator safety at the same time.

Yes, and you should. The template is a starting point, so you can set the tolerance band, test duration, units of measure, and pass/fail criteria to match your plant SOP and the specific chemical feed equipment. You can also add fields for flow verification method, pump curve references, or SCADA setpoint confirmation if your process requires it.

An ad hoc note may record that a pump was checked, but it often misses the measured output, the setpoint, the calibration equipment status, and the follow-up action when something fails. This template creates a repeatable record that supports troubleshooting, trend review, and supervisor sign-off. It is easier to audit and more useful when a water quality issue needs to be traced back to a specific pump check.

Yes. The fields map well to a CMMS, tablet form, or paper log that is later entered into a maintenance system. You can link the pump ID, work order number, chemical lot, or corrective action ticket if your workflow uses those records. That makes it easier to track recurring calibration drift and close out deficiencies.