Escherichia coli O157:H7 Detection in Swimming pool and Spa water

Start date

Product Code

Proficiency Test





Escherichia coli O157

Approx. Size

lyophilised sample


The E.coli O157 strain used is atoxigenic (does not produce a toxin). It has eae genes but the genes for VT1/VT2 (STX1/STX2) are absent.

Microbiological contamination of bathing water can cause a range of sickness symptoms, the most extreme of which can result in hospitalisation. This can result from raw ingredients, poor sanitation or hygiene practices, or inappropriate storage conditions. Our Water and Environmental Microbiology proficiency test samples combine the test organisms into real water matrices or swabs, together with background flora to fully represent real-world samples.

E. coli is a well-known pathogen from which food poisoning symptoms result. Enjoying a large amount of consumer interest, effective testing is required to highlight areas of potentially unsafe levels of E. coli contamination across a range of foodstuffs.

Germs from other swimmers and unsafe water supplies can easily contaminate pool water, especially if it isn’t properly disinfected. Contaminated recreational water can cause a variety of ailments and diseases, such as diarrhea, and skin, ear and upper respiratory infections, particularly if the swimmer's head is submerged. It is therefore fundamental to utilise our proficiency test to classify the quality of water. This ensures the safety of bathers’ health, as we are able to identify when bacteria are present in the water.

Proficiency testing activities are important to ensure only high-quality testing measures are used to highlight any potentially unsafe levels of a range of indicator organisms within this bathing water matrix. This can allow you highlight any potential areas of improvement within your testing solution, to maintain the high-quality testing abilities your regulators, currently enjoy.