sanitary sewer overflow
...that sanitary sewer overflow is a common condition, mostly associated with heavy rainfall, leading to discharge of billions of gallons of raw sewage to the environment each year?
...that <b id="mwCJA"><a href="./Sanitary_sewer_overflow" id="mwCJE" rel="mw:WikiLink" title="Sanitary sewer overflow">sanitary sewer overflow</a></b> is a common condition, mostly associated with heavy <a class="mw-redirect" href="./Rainfall" id="mwCJI" rel="mw:WikiLink" title="Rainfall">rainfall</a>, leading to discharge of billions of gallons of raw <a href="./Sewage" id="mwCJM" rel="mw:WikiLink" title="Sewage">sewage</a> to the <a class="mw-disambig" href="./Environment" id="mwCJQ" rel="mw:WikiLink" title="Environment">environment</a> each year?