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New Hampshire Department of Environmental Services

Flood-Related Public Service Announcement
Dealing with Mold
  • Mold is a serious problem in flooded areas.
  • The key to controlling mold growth is by controlling moisture-and doing it quickly.
  • Dry out the building. Completely drying out a building will take time, and you may have to remove ceilings, wallboard, insulation, flooring and other materials if they were soaked.
  • However, these materials may also contain asbestos and should be tested first if in doubt.
  • Microorganisms will continue growing as long as things are wet. When fumes aren’t a problem and if electricity is available and safe, you can remove moisture by closing windows and running a dehumidifier or window air conditioner.
  • If you see mold or if there is an earthy or musty smell, you should assume a mold problem exists. Remove water damaged materials. Wash mold off hard surfaces with detergent and water, and dry completely. A disinfectant may be used to kill mold missed by the cleaning.

NH Department of Environmental Services | 29 Hazen Drive | PO Box 95 | Concord, NH 03302-0095
(603) 271-3503 | TDD Access: Relay NH 1-800-735-2964 | Hours: M-F, 8am-4pm

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