Reminiscent of Woodstock 99:

The number of portable toilets installed proved insufficient for the number of attendees. The toilets and showers soon became unusable and overflowing, and male guests resorted to urinating on the side of the toilets or behind vendor stalls. Excrement from the toilets flowed into the mud pits and camping areas, mixing with water from the broken pipes. Many attendees began jumping into the mud pits and water troughs to stay cool in the heat, unaware of the contamination; this led to many cases of trench mouth and trench foot. The Oneida County Health Department analyzed the free drinking water, finding it to be contaminated with E. coli and other bacteria.