Coliform testing include Fecal coliform, E. coli and Total coliform

Coliform bacteria are described and grouped, based on their origin or characteristics, as either Total or Fecal Coliform. The total coliform group includes Fecal Coliform bacteria such as Escherichia coli (E .coli), as well as other types of Coliform bacteria that are naturally found in the soil. Fecal Coliform bacteria exist in the intestines of warm blooded animals and humans, and are found in bodily waste, animal droppings, and naturally in soil. Most of the Fecal Coliform in fecal material (feces) is comprised of E. coli. Serotype E. coli 0157:H7 is known to cause serious human illness.

Coliform testing

Coliform testing

Total Coliform do not necessarily indicate recent water contamination by fecal waste, however the presence or absence of these bacteria in treated water is often used to determine whether water disinfection is working properly. However, the presence of Fecal Coliform may indicate recent contamination by human sewage or animal droppings which could contain other bacteria, viruses, or disease causing organisms. This is why Coliform bacteria are considered “indicator organisms”; their presence warns of the potential presence of disease causing organisms and should alert the person responsible for hygiene to take precautionary action.

A basic laboratory test is the best way to tell if Coliform organisms are present. When water is tested for Fecal or Total Coliform, the results are usually given as the number of colony forming units per 100 millilitres (CFU/100ml) of water sampled. No sample should contain Fecal Coliform or E. coli, and ideally there should be no Total Coliform, however a single sample may contain up to 10 Total Coliform CFU/100 ml. If any Coliform bacteria are detected in drinking water, the source should be immediately investigated. If known or suspected to be Fecal Coliform or E. coli, the water should not be consumed without treatment such as boiling for one minute.

Coliform Testing Services

MBL provides qualitative analysis of environmental samples such as swabs, water, dust, etc. for presence/absence of coliforms. If coliforms are present, the culture is further analyzed to detect E. coli and fecal coliforms. Fecal coliforms are distinguished by their ability to grow at increased temperatures suggesting pathogenic potential.

If you would like to receive more information regarding mold or our laboratory services and prices, please call us at 905-290-9101 (Ontario) or 604-435-6555 (British Columbia). You can also complete the form below and we shall get back to you within 2 business days.

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