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Inspection des infrastructures civiles 21 points

Elevated Water Storage Tank Inspection

Cette liste de contrôle est en anglais.

Interior and exterior inspection of elevated steel potable water storage tanks documenting coating, structural, sanitary, and safety condition.

AWWA D100AWWA M42AWWA C652

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General & Site

  • Tank type *
  • Is the tank foundation and site free of settlement, erosion, or grading issues? *
  • Is security fencing, hatch locks, and site access adequate?
  • Was the inspection performed with or without draining (in-service dive vs. dry)?
  • Date of inspection *

Exterior Structure & Coating

  • Is the exterior coating free of significant failure, blistering, or corrosion? *
  • Are shell, riser, and support columns/legs free of section loss or distortion? *
  • Are welds and bolted connections free of cracking or loosening? *
  • Is dry-film coating thickness measured at representative locations?

Interior (Wet & Dry) Condition

  • Is the interior wetted-surface coating intact and holding without pinpoint rusting? *
  • Is sediment accumulation on the floor within acceptable limits?
  • Is the interior dry (vapor space) area free of corrosion and coating failure?
  • Is cathodic protection, if present, functioning?

Sanitary Defects

  • Is the roof hatch gasketed, overlapping, and lockable to prevent contamination? *
  • Is the overflow screened, flap-valved, and properly terminated (air gap)? *
  • Is the vent screened and free of blockage? *
  • Are there any openings permitting entry of birds, insects, or surface water? *

Safety Appurtenances & Findings

  • Are ladders, cages, safety climb devices, and railings compliant and secure? *
  • Are obstruction lighting and antenna attachments, if present, in acceptable condition?
  • Photograph representative interior and exterior conditions
  • Inspector signature *

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