Polluted water discharge

27 billion gallons of polluted water discharge into New York Harbor per year.

By the way, many sewer systems cannot handle the amounts of water in events of heavy rainfall and so called “combined sewer overflow“-systems will discharge the remaining water. This water is a mix of raw sewage and polluted stormwater.

Source: https://www.riverkeeper.org/campaigns/stop-polluters/sewage-contamination/cso/