| 21. | Second tests shown that the school's drinking water did not contain coliform.
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| 22. | The source of the coliform contamination is debated.
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| 23. | Fecal coliform levels at the mouth periodically violate State of California water quality standards.
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| 24. | Violations involved arsenic, radioactive substances like uranium, tetrachloroethylene, and coliform bacteria.
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| 25. | The EPA refused, worried about the presence of coliform bacteria in the injected water.
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| 26. | Surface water has an excessive load of faecal coliform bacteria and is costly to treat.
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| 27. | Health officials also found high levels of fecal coliform bacteria off Hollywood and Hallandale Beach.
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| 28. | The coliform index is used because it is difficult to test for pathogenic bacteria directly.
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| 29. | Newer methods for coliform detection are based on specific enzyme substrates as indicators of coliforms.
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| 30. | Rivers Yamuna, Vardha are amongst the other most coliform polluted water bodies in India.
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