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Parks officials said protocols differ depending on the consistency of the excrement. For solid poop, all swimmers are kicked out, and a net is used to scoop the material out of the water. Workers then add chlorine to the mix for at least 25 minutes before reopening the pool.
These NYC pools kept closing last summer after people pooped in them

it mixes pathogen-bearing feces with relatively clean urine. Then it dilutes that slurry47 with about 100 times48 its volume in pure drinking water, and further mixes the mess with industrial toxins in the sewer system, thus turning “an excellent fertilizer and soil conditioner”49 into a serious, far-reaching, and dispersed disposal problem.50
Paul Hawken • Natural Capitalism
Letting the water run for five minutes at the start of the day flushes lead,
Elizabeth Royte • Bottlemania: Big Business, Local Springs, and the Battle over America's Drinking Water

More Than Clumsiness
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