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Ever wonder why you shouldn’t go to the beach after it rains? Or why you shouldn’t take a shower during a rainstorm? Combined Sewer Overflows (CSOs) are one of New York City’s most persistent and pervasive environmental challenges. Learn how our city’s water system works, how it handles stormwater and sewage, and why, unfortunately, the latter winds up in our waterways thanks to the former. Join Doug Chapman, a LEED-certified professional with experience designing green roofs, as we look at strategies for tackling CSOs, using the infrastructure of the Brooklyn Navy Yard as a case study.