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Total Coliforn count level in the ganga?
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The CPCB map 'Sustainability of River Ganga Water' uses the criteria of dissolved oxygen (more than 6 mg/litre), biochemical oxygen demand (less than 2 mg/litre), total coliform levels (5000 per 100 ml) and pH (range between 6.5 and 8.5) to assess the health of the river.
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