|
|
|
Dodge City Daily Globe - Dodge City, KS
  • Water deemed clean after second testing

  • The municipal water supply has been found safe, Dodge City officials said, following a thorough round of testing following the discovery of a higher-than-acceptable concentration of coliform bacteria during normal checks last month.
    • email print
  • The municipal water supply has been found safe, Dodge City officials said, following a thorough round of testing following the discovery of a higher-than-acceptable concentration of coliform bacteria during normal checks last month.
    Coliforms are a group of bacteria and are commonly found in organic matter, including soil and surface water, with certain species existing in the gut and feces of all warm-blooded animals.
    Most coliforms do not cause illnesses, but a test for their presence acts as an indicator that dangerous species of the bacteria group may exist in the water. Those include E. coli, a fecal coliform with certain strains that can cause serious illness.
    Every month the city's water supply is tested 30 times at various locations. If two tests indicate the presence of coliforms, more thorough testing is ordered. Had the dangerous fecal coliforms been discovered, the city would have immediately issued a warning, quarantined the contaminated supply and urged residents to boil their water, Public Works Superintendent Corey Keller said.
    "Since we had two sites that tested for coliform we had to notify the public of what happened. But there's no reason to be concerned," Keller said.
    Each of the city's wells was sampled for two days, Keller said, and additional tests were made up and downstream from the source. Those samples were tested for dangerous species of coliforms and came back negative.
    The city uses 15 wells, three at a time, to supply the municipality with water.
    "From time to time we have one come up positive," Keller said. The last time the city found higher-than-acceptable concentrations of coliforms in two samples was 2007. Then, as now, the discovery triggered additional tests but found no dangerous contamination.
    Some coliforms can be introduced to a water sample while handling the testing materials, Keller said.
    The city will be publishing a public notice in the near future as required by state law, and will increase the amount of testing compared to the normal regimen for the next month.
    The notice states that it is not an emergency, but people with "severely compromised immune systems, infants and some elderly may be at increased risk." The city advises anyone with health concerns to consult their doctors.
      • calendar