Raw Water Intake and Screen Inspection
Use this raw water intake and screen inspection template to document intake structure condition, screen blockage, and pump performance before raw water delivery is affected. It helps operators catch debris, damage, and flow restrictions early.
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Built for: Water Treatment · Municipal Utilities · Industrial Water Systems · Environmental Services
Overview
This Raw Water Intake and Screen Inspection template is built for treatment plants and utility sites that need to verify the condition of intake structures, trash racks, screens, bypass paths, and raw water pumps before a restriction becomes an outage. It captures the physical condition of the intake area, debris loading, screen integrity, headloss or differential pressure, and the mechanical status of the pump train in one walk-through.
Use it when source water conditions can change quickly, such as after storms, seasonal leaf drop, algae blooms, ice, flooding, or upstream disturbance. It is also useful after maintenance work, screen cleaning, or any alarm indicating reduced flow. The template helps operators document what they saw, what was out of range, who was notified, and whether corrective action was started.
Do not use this form as a substitute for confined space entry, electrical safety, or lockout-tagout procedures. If access to the intake requires special controls, those controls must be followed separately. It is also not the right tool for chemical treatment equipment, finished water distribution, or laboratory sampling. The value of this template is that it keeps the inspection focused on the intake path itself and the conditions that can interrupt raw water delivery.
Standards & compliance context
- The template supports documentation practices commonly expected under OSHA general industry requirements by capturing access controls, PPE, and hazardous conditions before work proceeds.
- It aligns with ANSI/ASSP safety program principles by prompting consistent observation, escalation, and corrective action tracking for recurring deficiencies.
- For facilities with electrical or mechanical hazards, it can be paired with lockout-tagout and machine guarding procedures to keep inspection activity separate from energized maintenance work.
- Water utility operators can use it alongside site SOPs and preventive maintenance programs to show routine attention to intake reliability and raw water continuity.
- If the intake area includes confined space, fall protection, or other controlled access hazards, those requirements should be handled under the applicable safety program before the inspection begins.
General regulatory context for orientation only — verify current requirements with counsel or the relevant agency before relying on this template for compliance.
What's inside this template
Inspection Details and Site Identification
This section establishes who performed the inspection, where it happened, and under what conditions so the record can be traced later.
- Inspection date and time recorded
- Intake location, structure ID, or station identified
- Inspector name and role documented
- Weather, water level, or flow conditions noted if relevant
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Inspection performed under required access controls and PPE
Verify site-specific PPE and access controls were followed before entering the intake area.
Raw Water Intake Structure Condition
This section matters because structural damage, seepage, or debris at the intake can create the first restriction in the raw water path.
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Intake structure free of visible damage, cracking, corrosion, or displacement
Inspect concrete, steel, grating, housings, and support members for damage that could affect structural integrity or flow.
- Access platforms, ladders, and walkways secure and unobstructed
- Signs of erosion, undermining, leakage, or unusual seepage observed
- Trash racks, grates, and protective barriers intact and properly seated
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Debris accumulation at intake structure
Estimate the percentage of visible intake opening or screen area affected by debris.
Screen Condition and Flow Obstruction
This section matters because screen blockage or damage is one of the most common causes of reduced intake flow and unplanned maintenance.
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Screens clear of leaves, sticks, algae, trash, or other debris
Verify the screen face and surrounding area are not obstructed by material that could reduce intake capacity.
- Screen damage, tears, bent bars, or missing sections observed
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Screen differential pressure or headloss within acceptable operating range
Record the measured differential pressure or headloss across the screen if instrumented.
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Screen cleaning mechanism operating normally
Verify traveling screens, brushes, spray systems, or rakes operate without binding, unusual noise, or missed cycles.
- Bypass, overflow, or bypass channel free of blockage
Pump and Mechanical Condition
This section matters because the pump is the final moving component delivering raw water, and early signs of wear often show up here first.
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Raw water pump operating without abnormal vibration or noise
Listen and observe for cavitation, bearing noise, misalignment, or other abnormal conditions.
- Pump suction and discharge lines free of visible leaks
- Pump seals, couplings, and guards in good condition
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Pump suction pressure or flow rate within expected operating range
Record the current operating value if available from local instrumentation or control system.
Operational Status, Notifications, and Sign-Off
This section matters because an inspection only has value if abnormalities are escalated, actions are started, and accountability is documented.
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Any abnormal conditions, alarms, or restrictions reported to operations or maintenance
Document whether issues were escalated according to site procedure.
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Corrective actions initiated for any deficiency or non-conformance
List work order numbers, temporary controls, or follow-up actions for any observed issue.
- Inspector signature
- Supervisor or reviewer acknowledgment
How to use this template
- 1. Record the inspection date, time, intake location, structure ID, weather, water level, and the name and role of the inspector before entering the area.
- 2. Verify that required access controls, PPE, and any site-specific safety steps are in place before approaching the intake structure or mechanical equipment.
- 3. Walk the intake structure in order, documenting visible damage, corrosion, seepage, erosion, debris accumulation, and the condition of platforms, ladders, walkways, trash racks, and barriers.
- 4. Inspect the screens and bypass paths for blockage, tears, bent bars, missing sections, abnormal headloss, and whether the cleaning mechanism is operating normally.
- 5. Check the pump and associated lines for abnormal vibration, noise, leaks, seal or coupling defects, and suction or flow readings that fall outside expected operating range.
- 6. Record every abnormal condition, notify operations or maintenance as needed, initiate corrective actions, and complete supervisor acknowledgment or sign-off.
Best practices
- Document actual observations, not just pass/fail judgments, so the record shows the size, location, and severity of each deficiency.
- Measure and record screen differential pressure or headloss whenever the system provides it, because trend data is more useful than a generic note.
- Photograph debris buildup, damaged bars, leaks, and erosion at the time of inspection so the condition is preserved before cleanup or repair.
- Inspect the bypass or overflow path every time, since a clear screen can still be defeated by a blocked alternate flow route.
- Treat unusual vibration, noise, or seal leakage as an early warning sign and escalate it before the pump fails.
- Use the same inspection route and terminology each time so recurring non-conformances can be compared across shifts and seasons.
- Separate safety access issues from operational defects so a blocked ladder, missing guard, or unsafe platform is not buried in the same note as debris accumulation.
What this template typically catches
Issues teams running this template most often surface in practice:
Common use cases
Frequently asked questions
What does this inspection template cover?
It covers the raw water intake structure, trash racks and screens, bypass or overflow paths, and the associated pump and mechanical conditions that can affect raw water delivery. The form is built to capture visible damage, debris loading, abnormal headloss, leaks, vibration, and any operational restrictions. It also includes sign-off and notification fields so findings are not left as informal notes. Use it as a field inspection record, not a maintenance work order.
How often should this inspection be performed?
Use it on a routine cadence that matches site risk, source water conditions, and plant operating procedures, with additional checks after storms, high debris events, ice, flooding, or unusual turbidity. Facilities with seasonal debris loading often inspect more frequently during those periods. The template is flexible enough for daily rounds, shift checks, or scheduled preventive inspections. If your site has a written SOP, align the frequency to that procedure.
Who should complete the inspection?
It is typically completed by an operator, maintenance technician, or other trained staff member familiar with the intake system and site access controls. A competent person should be assigned where access hazards, confined spaces, or energized equipment are present. The reviewer or supervisor sign-off field helps confirm that abnormal conditions were escalated. If your site uses contractors, the template can still be used as the field record, but internal review should remain in place.
Does this template support regulatory or standards-based inspections?
Yes, it supports documentation practices commonly expected under OSHA general industry safety requirements, ANSI/ASSP safety program practices, and water utility operating procedures. It is also useful for facilities that need to show preventive attention to intake reliability, access safety, and mechanical condition. The template is not a substitute for a site-specific compliance program, but it creates a defensible record of observed conditions and corrective actions. If your intake area includes electrical or lockout-tagout hazards, pair it with the relevant safety procedures.
What are the most common mistakes when using this form?
The biggest mistake is marking items as acceptable without recording the actual condition, such as debris depth, visible damage, or headloss trend. Another common issue is skipping the bypass or overflow path, which can hide a blockage that affects intake performance. Teams also sometimes note a problem but fail to document who was notified or what action was initiated. This template is designed to prevent those gaps by prompting both observation and follow-up.
Can I customize the inspection fields for my plant?
Yes, and you should. Add site-specific intake IDs, pump numbers, screen types, alarm setpoints, and any local thresholds for differential pressure, suction pressure, or flow rate. You can also add fields for seasonal debris, ice conditions, fish exclusion devices, or remote telemetry if those are relevant to your operation. Keep the core walk-through order intact so the inspection still follows the physical path of the system.
How does this compare with an informal walk-around or notebook log?
An informal log often misses critical details like screen headloss, bypass blockage, or whether a defect was escalated. This template standardizes the inspection so the same conditions are checked every time and the results are easier to trend over time. It also creates a cleaner handoff between operations and maintenance. For recurring intake issues, that consistency is usually more valuable than free-form notes.
Can this template be integrated with maintenance or CMMS workflows?
Yes. Findings can be routed into a CMMS, work order system, or digital operations log after the inspection is completed. The sign-off and corrective action sections make it easy to trigger maintenance follow-up for debris removal, screen repair, seal replacement, or pump troubleshooting. If you use a mobile inspection app, this template can be mapped to required fields and photo attachments.
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