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Exterior and structure

Check the lowest level and foundation edge for new water clues

New staining, dampness, musty odor, pooling, or a changed crack can reveal a water path before finishes and belongings hide it.

Homeowner guidance with clear stop points

When it usually needs attention

Ongoing home-care habit

EPA and HUD guidance supports prompt moisture-source correction and condition checks after wet weather, not a universal repair interval.

When this guide applies

Every occupied home gets a ground-level observation route; inaccessible or shared foundation areas remain a reporting boundary.

What to do

From normal floors and stable ground, compare the lowest occupied level, visible slab or foundation edge, and nearby drainage after heavy rain; photograph changes and correct only an obvious safe source such as a misplaced downspout extension.

Applies when: Every occupied home gets a ground-level observation route; inaccessible or shared foundation areas remain a reporting boundary.

Who should handle it: Residents may observe and report; excavation, structure, drainage, shared walls, crawlspaces, waterproofing, and common areas belong to the responsible owner or qualified trade.

Tools

  • Flashlight
  • Phone camera or dated observation log

Parts and supplies

  • Temporary floor marker or container only for a small clean-water drip that is safe to approach

Safety gear

  • Slip-resistant footwear
  • Avoid exposure instead of relying on consumer PPE for sewage, floodwater, mold, or animal waste

Before you start

  • Observe only from stable intended walking surfaces
  • Keep people and pets away from unknown contamination

Power, water, or fuel shutoffs

  • Use only a known safe water shutoff for an active clean-water leak
  • Do not approach wet electrical equipment

Cleaner or chemical limits

No bleach, fragrance, sealant, paint, pesticide, drain cleaner, or degreaser is used to hide a water clue; identify and correct the source first.

Stop and get help when

  • Stop for sewage, floodwater, wet electricity, structural movement, a rapidly changing crack, hidden or widespread growth, or an unsafe crawlspace
  • Do not excavate, open finishes, enter confined space, or disturb unknown material

Who to call: Use emergency or utility help for immediate danger and the responsible owner plus qualified drainage, plumbing, structural, envelope, electrical, or remediation service for the source.

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