Impurity entered a flowing channel, but farther downstream no relevant change in smell, colour or taste remains. At the unaffected flowing section, the cited permission can apply.
This does not erase the distinction from the earlier point where the contaminant itself may remain; the point of drawing water and its remaining effects matter.
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Impurity in Stagnant and Running Water, Large Ponds, and Aquatic Creatures
Impurity entered a flowing channel, but farther downstream no relevant change in smell, colour or taste remains. At the unaffected flowing section, the cited permission can apply.
This does not erase the distinction from the earlier point where the contaminant itself may remain; the point of drawing water and its remaining effects matter.