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Unidirectional Flushing Run Data Collection Form

Record each unidirectional flushing run in one place, from valve sequencing and target velocity to chlorine residual, turbidity, and completion notes. Use it to document what was flushed, what changed, and whether the run met the planned endpoint.

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Built for: Water Utilities · Municipal Public Works · Environmental Services · Utility Contractors

Overview

This template captures the operational record for one unidirectional flushing run. It is built to document the run date and time, the system zone and hydrant or outlet used, the valve sequence, the target and actual flushing velocity, and the water quality readings taken during the event. It also gives the operator a place to note exceptions, unusual conditions, and completion details so the run can be reviewed later without relying on memory.

Use this form when your team needs a repeatable field record for planned distribution flushing, corrective flushing after water quality complaints, or post-construction cleaning before a line is returned to service. It is especially useful when multiple valves are opened and closed in a specific sequence and you need a clear audit trail of what was done. The form also helps standardize how residual and turbidity readings are captured, which makes comparisons across runs easier.

Do not use this template as a general maintenance work order, a customer complaint intake form, or a lab results report. It is not designed to capture every asset detail, crew timesheet field, or long narrative incident report. If your process requires additional approvals, sample chain-of-custody, or GIS references, add those fields only where they are actually needed. The goal is a focused field form that supports accurate flushing documentation without collecting unnecessary data.

What's inside this template

Run Identification

This section anchors the record to a specific date, time window, zone, outlet, and status so the run can be traced later.

  • Run Date (required)

    Date the flushing run was performed.

  • Run Start Time (required)

    Time the flushing run began.

  • Run End Time

    Time the flushing run ended, if completed.

  • System Zone / Area (required)

    Identify the flushing zone, pressure district, or area served.

  • Hydrant or Outlet ID (required)

    Unique identifier for the flushing point.

  • Run Status (required)

    Current status of this flushing run.

Valve Sequencing and Operations

This section documents the exact valve actions used to create the unidirectional flow path and proves the sequence was followed.

  • Valve Sequence Summary (required)

    Briefly describe the valve opening and closing sequence used for this run.

  • Upstream Valves Opened (required)

    Select all upstream valves opened for the run.

  • Downstream Valves Closed (required)

    Select all downstream valves closed to direct flow.

  • Total Valves Adjusted

    Number of valves opened, closed, or otherwise adjusted during the run.

Flushing Performance

This section captures whether the run achieved the intended hydraulic conditions and how long the flushing lasted.

  • Target Velocity (required)

    Planned flushing velocity for the run.

  • Target Velocity Units (required)

    Units used for the target velocity.

  • Actual Velocity

    Observed flushing velocity achieved during the run.

  • Actual Velocity Units

    Units used for the actual velocity.

  • Flushing Duration (Minutes)

    Total active flushing time for the run.

Water Quality Measurements

This section records the field readings that show whether the flushed water met the expected quality endpoint.

  • Chlorine Residual Type (required)

    Select the residual type measured.

  • Chlorine Residual Value (required)

    Measured chlorine residual value.

  • Chlorine Residual Units (required)

    Units used for the chlorine residual measurement.

  • Turbidity Value

    Measured turbidity value, if collected.

  • Turbidity Units

    Units used for turbidity measurement.

Exceptions and Completion Notes

This section explains deviations, unusual observations, and the final outcome so the record is useful after the crew leaves the site.

  • Exceptions Observed? (required)

    Indicate whether any exceptions, issues, or deviations occurred.

  • Exception Details

    Describe any operational issues, corrective actions, or deviations from the planned sequence.

  • Completion Notes

    Add any final notes, observations, or follow-up actions.

How to use this template

  1. Create the form with the run identification fields first, so the operator can record the date, times, zone, outlet ID, and run status before the flush begins.
  2. Add the valve sequencing section and require a concise sequence summary plus counts for upstream valves opened and downstream valves closed.
  3. Set up the flushing performance fields with numeric inputs and unit selectors so target velocity, actual velocity, and duration are entered in a consistent format.
  4. Include the water quality measurements section for chlorine residual and turbidity, and use conditional logic to show any extra notes only when readings are outside the expected range.
  5. Finish the form with exceptions and completion notes, then route the submission to the supervisor or operations queue for review and follow-up if needed.

Best practices

  • Use separate numeric fields and unit selectors for velocity, residual, and turbidity so operators do not type mixed-format values.
  • Record the actual valve sequence in the order performed, not as a generic summary after the run is over.
  • Mark required fields only where the data is essential for reviewing the run, and keep noncritical context optional to reduce field friction.
  • Use conditional logic to reveal exception details only when the operator marks an issue, which keeps the form short during routine runs.
  • Capture readings at the time they are taken rather than reconstructing them from memory after the flush is complete.
  • Include a clear completion note that states whether the run met the target endpoint and whether any follow-up action is needed.
  • Standardize the run status values so supervisors can filter completed, incomplete, and follow-up-needed runs without manual cleanup.

What this template typically catches

Issues teams running this template most often surface in practice:

Target velocity is entered without the matching unit, making the reading hard to compare later.
Actual velocity is recorded as an estimate instead of the measured value from the field equipment or calculation used on site.
Valve sequencing is described too vaguely to reconstruct which valves were opened and closed in what order.
Chlorine residual and turbidity are captured, but the operator omits the measurement type or units.
Exception details are left blank even when the run status shows a problem or deviation from plan.
Completion notes say the run is done without stating whether the target endpoint was reached.
The form is used for unrelated maintenance tasks, which makes the data harder to search and trend later.

Common use cases

Municipal distribution operator
A city water operator uses the form to document each flushing run by zone, valve sequence, and water quality readings. The record supports shift handoff and later review when a complaint or low-residual area needs investigation.
Utility contractor field crew
A contractor completing post-construction flushing fills out the form on site to show the exact sequence used and the measured residual and turbidity at completion. The utility can review the submission before accepting the work.
Water quality supervisor
A supervisor reviews submitted runs to spot repeated low residuals, unusual turbidity spikes, or incomplete valve documentation. The form creates a consistent audit trail for follow-up and corrective action.
Public works maintenance team
A maintenance crew uses the template for scheduled zone flushing tied to seasonal operations or dead-end main cleanup. The standardized fields make it easier to compare runs across neighborhoods and crews.

Frequently asked questions

What is this template used for?

This template is used to document a single unidirectional flushing run from start to finish. It captures the run identification, valve actions, flushing performance, water quality measurements, and any exceptions or completion notes. The result is a consistent record you can review later for operations, troubleshooting, and audit trail purposes.

Is this form meant for every flush or only planned maintenance runs?

It fits both planned flushing activities and corrective flushing after water quality concerns, as long as the work follows a defined run sequence. If your team performs routine zone flushing on a schedule, this form gives you a repeatable record for each event. If the work is an emergency response, you may want to add incident-specific fields or a separate escalation log.

Who should complete the form in the field?

The operator or crew lead who actually performs the flushing run should complete it, with review by a supervisor if your process requires sign-off. That person is usually best positioned to record valve sequencing, actual velocity, residual readings, and exceptions while the work is happening. If multiple people are involved, assign one owner for the final submission to avoid conflicting entries.

How often should a flushing run be recorded?

Record it every time a unidirectional flushing run is performed, even if the run is short or produces no notable issues. Consistent logging helps you compare runs across zones and spot recurring low-residual areas, valve problems, or sediment release patterns. If your utility uses a separate work order system, this form can sit alongside it as the field record.

What are the most common mistakes when filling it out?

Common mistakes include leaving out the actual velocity, mixing up target and actual units, and writing vague valve notes that do not show the sequence used. Another frequent issue is recording only the final chlorine residual without noting the measurement type or the turbidity reading. Clear, field-level entries make the form useful later when someone needs to reconstruct the run.

Can this template be customized for our utility or contractor workflow?

Yes. You can add fields for crew name, work order number, map sheet, sample location, or supervisor approval if those are part of your process. If you use conditional logic, you can show exception details only when a run status indicates a problem or when the operator marks an anomaly. Keep the form focused on data you will actually use so it stays quick to complete in the field.

Does this replace SCADA, asset management, or lab systems?

No, it is a field data collection form, not a replacement for operational systems or laboratory reporting. It works well as the human-readable record that complements SCADA trends, work orders, and water quality results. If you integrate it with other systems, use it to capture the operational context that automated tools often miss.

What should happen after the form is submitted?

After submission, the record should be routed to the operations team or supervisor for review, with exceptions flagged for follow-up. If your process includes corrective action, the submission should trigger a work order, investigation, or repeat flush as needed. A clear post-submit path helps ensure the form is not just archived but actually used.

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