Monday’s torrential downpour contributed to the algae problem with massive sewage spills, although their duration has not yet been quantified and posted online. When heavy rains deluge combined sewer systems – where storm water and sewerage can mix – the volume can overwhelm systems and spill untreated sewage into waterways, including the Maumee.http://www.toledoblade.com/local/2014/08/12/Downpour-contributes-to-algae-problem.html#RfF28SXIhmb14KtQ.99