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| Contaminants
in septic |
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| systems: Pathogens |
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| z | A family of 4
produces enough E.coli each |
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| day to
contaminate 1 million gallons |
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| z | Bacteria can
survive weeks or months |
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| y | E. coli
3-4 months |
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| y | Salmonella 44 days |
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| y | Shigella 24 days |
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