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This varies from country to country and possibly even states in US. However in general, drinking water must have NO coliform at all - that is called '0/100ml'

Swimming pool water is generally allowed '200/100ml'. Anything other than that is 'high' . In general terms coliform is in almost every pool of water and in almost every well. What we are most concerned about is E coli , which is fecal coliform and is dangerous to humans.

If you are in any doubt re E coli in drinking water, then take a sample in a sterilised bottle to your local lab. A lab test is usually about $25 in US/Canada and is well worth it to avoid dysentery and associated illnesses.

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11y ago
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7y ago

Any coliform presence in drinking water is cause for concern. Zero percent is the standard for drinking water.

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Q: What are acceptable coliform levels in water?
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What is the coliform cell limit in water by USPH standards?

It is 100 coliform cells for 100 ml water.


Coliform in well water?

Coliform in well water is the presence of fecal matter in the well water. If the bacteria is found in drinking water, appropriate action needs to be taken.


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Fertilizers, pH levels, dissolved oxygen, turbidity, and fecal coliform (for those of you who do not know what that is, it's bacteria found in poo.)


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What is a coliform count?

A coliform count is a microbiological assay of the number of coliform-type bacteria living in a certain sample. This is often used as a measure of fecal contamination of water supplies.


What is a coliform count of water?

Coliforms are rod shaped gram negative bacteria that are often in well water. Not all coliform are harmful, but those of fecal origin are very harmful. The lab coliform count determines what type and how many coliform are in a water sample. This result is always marked "fit for human use" or "NOT fit for human use".


Will coliform in water hurt tomato plants and get into the fruit?

No.


Does a high coliform count indicate that the water may contain more than one kind of disease causing organism?

A high coliform count indicates that the water is contaminated by feces.


If a high coliform count is an indicator that the water may contains what?

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What kind of Bacteria live in drinking water?

total coliform bacteria


What are common sources of choloform in well water?

Roots and insects in the water are common sources of coliform.


How does coliform get into the water supply?

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