Water System Logbook

Free printable · build your round

Water system daily log sheet

Pick the readings your round actually takes: chlorine, meters, pressure, tank level, pump hours and checks. Then print a month of dated rows for the well house clipboard.

Blank PDF

31 rows · 1 page · Letter portrait

Daily Well Check

Water systemPWS ID

Operator(s)Test method

Month
DateTimeFree Chlorinemg/LSource MetergalWater PressurePSIPump HourshoursInitialsNotes
Rangetotototo
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Corrections: draw one line through the error, write the correct value beside it, then initial and date. Never erase or use correction fluid.

Reviewed byDateFree log sheet from watersystemlogbook.comPage 1 of 1

Customize the sheet

Readings

The same reading library as the Water System Logbook app.

Water quality
Water system
Checks and observations

Add your own reading

Columns

Paper
Orientation

A daily round checklist for small systems

Most small ground water systems (a park, a campground, a school or business on its own well) settle into the same daily walk-through. Adjust it to your system and your state's requirements:

CheckRecordWhat you're watching for
Source (well) meterRegister readingDaily production. A jump with no reason points to a leak, a stuck float or a running fixture.
Chlorine residualFree chlorine, mg/LBelow your minimum or trending down: check the feed pump, the solution tank and the injection point.
System pressurePSIPressure outside the switch settings, or short cycling.
Pump hour meterHoursMore run time for the same gallons can mean pump wear or a falling water level.
Storage tankLevel (% or ft)Not refilling overnight, or overflowing.
ChlorinatorRunning? Solution levelAn empty solution tank or a lost prime.
Well houseSecure? Anything unusualUnlocked doors, damaged vents or screens, standing water, animals.

EPA publishes a detailed preventive-maintenance program for small ground water systems, with daily, weekly, monthly and annual tasks (EPA small system O&M resources). The daily sheet above is the part you fill in every day.

Tips for a log that holds up

Chlorine only?

If chlorine residual is the only thing you log, the chlorine residual log sheet is set up for it, with sample locations, free and total chlorine, and a test-method line.

Questions

What should a daily water system log include?

At minimum: date, time, who did the round, and the readings your system is required or expected to take. For most small chlorinated well systems that means free chlorine, the source (well) meter reading, system pressure and a note of anything unusual. Many operators add pump hours, tank level and simple yes/no checks like chlorinator running or well house secure.

Why record the meter reading instead of the gallons used?

The register reading is what you can see and verify. Usage is the difference between two readings, so it can always be recalculated. A missed day, a backdated entry or a meter reset is handled correctly if the raw readings are on the sheet. The water meter usage calculator on this site does that math.

Portrait or landscape?

Portrait fits about six readings plus notes on one page for the whole month. With more columns, switch to landscape, which splits the month across two pages so each row stays tall enough to write in.

Can I add readings that aren't in the list?

Yes. Add your own reading with a name, a unit and a type: a number, a meter, yes/no, pass/fail or text. Chlorinator solution level, softener salt and a booster pump hour meter are common additions.

Sources

  1. EPA — Operation and maintenance resources for small drinking water systems
  2. 40 CFR 141.33 — Record maintenance

Last reviewed September 28, 2026. Rules change and states add their own; confirm with your state drinking water program.