Although fecal coliform bacteria levels vary, the watershed association's tests in Allston have consistently exceeded swimming standards in recent months.
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Of the planes checked, 20 tested positive for total coliform bacteria, which could signal the presence of other harmful bacteria.
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At the same time, levels of the coliform bacteria that thrive in sewage and cause human illness have dropped precipitously.
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Coca-Cola spokeswoman Sonia Soutus said the company's tests showed the bacteria was a " nonhazardous form of coliform bacteria ."
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_Airlines must notify EPA immediately when an airplane tests positive for coliform bacteria; EPA will ensure the problem is corrected.
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An easy way to differentiate between different types of coliform bacteria is by using an eosin methylene blue agar plate.
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Is there an easy way of testing water ( for swimming, not drinking ) for the presence of fecal coliform bacteria?
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A study conducted later concluded that the source of Fecal Coliform Bacteria in North Creek tributaries is diffuse, or spread out.
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Non-coliform bacteria, such as " Streptococcus bovis " and certain clostridia may also be used as an index of faecal contamination.
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High levels of coliform bacteria may indicate more serious problems in a water supply, such as the infiltration of fecal material.
