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Standing or Flood Waters

Health Risks


After a flooding emergency, finding clean running water can be difficult. Flood waters may contain potentially dangerous materials, such as fecal material from overflowing sewage systems, agricultural runoff, and chemicals from industrial areas. Wading in flood waters can also be a cause of infection or result in a variety of injuries.

Infectious Diseases

Diarrheal Diseases
There is a risk of spreading disease by eating or drinking anything contaminated by flood water. Practice good hygiene (handwashing) after contact with flood waters. Do not allow children to play in flood water areas, wash children's hands frequently (always before meals), and do not allow children to play with flood-water contaminated toys that have not been disinfected. For information on disinfecting certain non-porous toys visit CDC Healthy Water's Cleaning and Sanitizing with Bleach section.
Wound Infections
Contact of intact skin with flood water does not, by itself, usually pose a serious health risk. However, wading in contaminated flood waters with open wounds can result in serious wound infections. If possible, do not wade in flood waters if you have an open wound. If you have any open wounds keep them as clean as possible by washing well with soap and clean water to control infection. If you cannot avoid exposing open wounds to flood water try and cover with a waterproof bandage before entering the water. If a wound develops redness, swelling, or drainage, seek immediate medical attention. For more information, visit CDC Healthy Water's Wound Care.

Chemical Hazards


Injuries

Drowning
If you enter fast-moving water, you risk drowning -- regardless of your ability to swim. Fast-moving, shallow water can be deadly. Even shallow standing water can be dangerous for small children. Cars or other vehicles do not provide adequate protection from flood waters. Cars can be swept away or may break down in moving water.
Animal and Insect Bites
Wading in flood waters can bring you into contact with a variety of animals, insects, and reptiles (especially snakes). Be alert and avoid contact. Use a stick to poke through debris.
Electrical Hazards
Avoid any downed power lines, particularly those in water.
Wounds
Avoid wading in standing water, which may contain sharp objects such as glass or metal fragments that can cause injury and possibly lead to infection.

Resources and Guidance






Contact Us:
  • Centers for Disease Control and Prevention
    1600 Clifton Rd
    Atlanta, GA 30333
  • 800-CDC-INFO
    (800-232-4636)
    TTY: (888) 232-6348
    24 Hours/Every Day
  • healthywater@cdc.gov
USA.gov: The U.S. Government's Official Web PortalDepartment of Health and Human Services
Centers for Disease Control and Prevention   1600 Clifton Rd. Atlanta, GA 30333, USA
800-CDC-INFO (800-232-4636) TTY: (888) 232-6348, 24 Hours/Every Day - cdcinfo@cdc.gov

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