The Economic Times

In 2012, Arizona listed Miller Creek as impaired by E. coli from human waste. 8 years later, Prescott groups built a public restroom, cutting E. coli levels by 13%

Miller Creek in Prescott, Arizona, was placed on the Clean Water Act Section 303(d) list in 2012 because of E. coli contamination associated with human waste. Investigations found evidence of human-originating bacteria in samples collected from the creek, while the lack of public restrooms was identified as a potential contributor to pollution.