www.alternet.org/economy/america-has-scary-sewage-problem-lets-clean-it-and-jumpstart-economy-while-were-it
"The problem is simple, surprising, and quite honestly disgusting: Our nation’s older cities depend largely on sewage treatment systems that overflow when it rains, dumping 860 billion gallons of raw sewage a year into “fresh” water across the country—enough to cover the entire state of Pennsylvania an inch deep."
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