Whenever you use the sink or flush a toilet, that wastewater goes down our drains and pipes and off to our wastewater treatment plants. Here in the Bronx, wastewater is combined with stormwater from our streets and parking lots and both go through a seven-hour treatment process before being released into the Bronx River. Unfortunately, our current wastewater plants do not have the capacity to handle all this water, so when it rains as little as 1/10", Combined Sewage Overflow (CSO) outfalls release a mix of untreated stormwater and raw sewage directly into the Bronx River to prevent overwhelming wastewater treatment plants. Human health risks from exposure to Bronx River after CSO events include diarrhea, skin rashes, and pink eye.