The Environmental Protection Agency (EPA) and the Health Service Executive (HSE) are advising people that water supplies from private wells can be contaminated with E-coli.
The HSE meanwhile reports a growing number of cases of VTEC, a particularly serious and nasty form of E-coli. Analysis of cases shows that people treated for VTEC are four times more likely to have consumed untreated water from a private well.
The EPA has developed a new assessment tool ‘Protect your Well’ available from www.epa.ie and well owners are urged to use it to assess their private well and ensure they are not putting their health or the health of family and visitors at risk.
“Lots of people assume that because their water comes from a well or a spring that it’s completely pure and safe to drink, but that is not necessarily the case,” said David Flynn, Programme Manager, EPA. “We estimate that up to 50,000 private wells in Ireland are contaminated with human or animal waste and this can cause significant threat to people’s health. Sometimes, we find that people can develop immunity themselves, but visitors to the house, particularly children and the elderly are at risk of getting very sick.”
Ireland has the highest incidence of VTEC in Europe. Since 2011, the HSE has reported a doubling of the number of VTEC cases in Ireland (284 in 2011, 554 in 2012 and 704 in 2013). Animals, particularly cattle are the main source of VTEC and infection is spread either from direct animal contact or through contaminated food and water. Person to person spread is also common. In other countries the most common source of infection is through food outbreaks.
In Ireland, rural families are commonly affected and much of this is because of contaminated private wells. Consumers of water from private wells are at much greater risk of VTEC than those who drink water from mains supplies. It can take a long time for the bug to clear even after the child has become well.
“Well owners should check their wells to ensure their health is not at risk,” said Mr Flynn.
“This includes checking that there aren’t any sources of pollution entering their well and testing their water, at least once a year, ideally following heavy rain when the well is most at risk of contamination.”
The EPA is providing easy to use information on its website explaining what well owners should do to protect their health.
The information includes a short animation to explain the risks to well water quality and the simple things that can be done to reduce the risks.
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