Why is flood water contaminated?

When flooding disrupts drinking water supplies or covers plumbing fixtures, dirty water can back-siphon into home plumbing and into homes or buildings. When sewage or septic systems back up, they contaminate structures. Floodwaters are considered to be contaminated because they carry sewage and other pollutants.

How can well water be contaminated?

Water run-off from rainfall or snow-melt can contaminate private wells by washing microorganisms into the well system or seeping underground. Leakage of waste from underground storage tanks and effluent from septic leach fields can reach a water source and result in microorganisms being present in water wells.

Why should you avoid flood water?

Water may not be safe to drink, cook or clean with after a flood. During and after flooding, water can become contaminated with microorganisms such as bacteria, sewage, heating oil, agricultural or industrial waste, chemicals and other substances that can cause serious illness.

What are the possible diseases that we could get once we are expose to flood water?

Floods can be a potential source of many water-borne diseases, such as typhoid fever, cholera, leptospirosis and hepatitis A. It can also increase the risk of vector- or carrier-borne diseases, such as malaria and dengue hemorrhagic fever. Outbreaks have been reported when massive floods occur.

What are safety precautions for floods?

Do not walk, swim or drive through flood waters. Turn Around, Don’t Drown!

Evacuate if told to do so.
Move to higher ground or a higher floor.
Stay where you are.

How can we protect us from flood?

During a flood: Protect

Shut off electrical, furnace, gas and water, and disconnect appliances if safe.
Move to higher ground.
Move valuables from the basement to upper floors.
Raise large appliances up on wood or cement blocks.
Stay calm and listen for evacuation, boil-water or other advisories from authorities.

What are the dangers of a flood?

Standing flood waters can also spread infectious diseases, contain chemical hazards, and cause injuries. Each year, flooding causes more deaths than any other hazard related to thunderstorms. The most common flood deaths occur when a vehicle is driven into hazardous flood waters.

What kind of diseases can be caused by flood?

Floods can increase the transmission of viral diseases specially water born infections, such as diarrheal diseases, hepatitis A and E, air-borne infections and vector borne diseases such as yellow fever, west Nile fever (WNF) and dengue fever (5, 6).

What kind of bacteria can be found in floodwater?

Vibrios, for example, are naturally occurring bacteria that live in certain coastal waters and can cause skin infections when an open wound is exposed to them. This can happen during floods. To protect yourself and your family:

What should you not do in a floodwater area?

Do not allow children to play in floodwater areas. Do not allow children to play with toys that have been contaminated by floodwater and have not been disinfected. Do not bathe in water that may be contaminated with sewage or toxic chemicals. This includes rivers, streams, or lakes that are contaminated by floodwater.

What kind of health problems can floodwaters cause?

Hurricane floodwaters may be contaminated by sewage with E. coli bacteria, which can cause serious gastrointestinal illness. Bacterial pathogens such as Staphylococcus and Streptococcus can lead to skin infections. Shigella can cause gastrointestinal illness in the form of diarrhea, vomiting, fever,…

What are the dangers of standing water in a flood?

Floodwater and standing waters can be dangerous and can make you vulnerable to infectious diseases, chemical hazards, and injuries. Protect yourself and your loved ones from the risks brought by floodwater by following these steps.

What are the dangers of contamination of groundwater?

Causes acute and chronic toxicity; can cause damage to lungs and bones. Possible carcinogen. Found in low concentrations in rocks, coal, and petroleum and enters the groundwater and surface water when dissolved by acidic waters.