coliform count
coli test

This is more than 1 000 times the coliform count considered safe to just swim in.

The coliform count as a measure of water quality.

More than 90 per cent of samples taken have a zero coliform count.

Coliform counts are only one aspect of water quality.

Coliform counts was more than 500 times the norm.

You know the coliform count in that beautiful surf.

Raw water indicators, such as turbidity and coliform counts, were also considered.

How can I found out about coliform counts?

She found that water quality is good, though fecal coliform counts allow only partial body contact.

Eagle Harbour beach was closed by high coliform counts in July of 1969.

Swimming is still often restricted because of high fecal coliform counts, usually after heavy rains.

The rest were rejected for high coliform counts or the presence of staphylococcus aureus.

For example, protection of the supply or partial treatment may be necessary to reduce turbidity even when the coliform counts are low.

Of particular concern were creeks and rivers which recorded levels above 40,000 on the faecal coliform count.

Downstream sampling showed high fecal coliform counts and ammonia levels.

Huntington Bay is used for commercial clamming all year, yet beds are closed periodically because of high coliform count.

However, there was no indication that using hog manure as fertilizer led to higher coliform counts in runoff.

Although we monitored several parameters, the most spectacular results we obtained were in the coliform counts.

"They always have high coliform counts."

Further analysis showed that the coliform count in samples taken the day after chlorination did not decrease from the previous day.

Gleason claimed manure was solely responsible for beaches being closed due to high coliform counts.

This river bubbles with methane and was found to have a fecal coliform count 10,000 time the safe limit for bathing.

Fecal coliform count 1,200 times national standard"

Biologists have attributed high fecal coliform counts at some parks to geese droppings.

After planting a mushroom bed in the gulch where the water was leaving, within a year the coliform count had decreased to nearly undetectable levels.

It recently announced that it will step up the number of E. coli tests conducted each year.

E coli tests on bean sprouts at the Gärtenhof organic farm in Lower Saxony farm have proved negative.

The American Meat Institute said a slight rise has been recorded in positive E. coli tests by the U.S. government over the summer.

Dr. Carter said that in addition to its two-in-one nature, the test is also quicker than current E. coli tests, with results in less than 24 hours rather than about a week.

Examine for gas formation (gas formation may be either a gas bubble or effervescence), record results, and begin the confirmed coliform, faecal coliform, and E. coli tests for all gas-positive tubes, as required.

Incubate gas-negative tubes (except raw shellfish and fish products) for an additional 24 ± 2 h, examine, record the number of additional gas-positive tubes, add to the result obtained in 7.6.3 and begin the confirmed coliform, faecal coliform and E. coli tests for the additional gas-positive tubes, as required.