What is a catch basin?
Storm water catch basins are curbside inlets to storm sewers that can collect some of the sediment and debris washed off the streets. Some people call these gutters or storm sewers. 5. Why does it matter what I do? All of the water gets treated at WLSSD anyway. Actually, only the wastewater piped from sink drains and toilets inside your house is supposed to go to WLSSD. All water (and contaminants) that wash onto the streets and into the catch basins (storm sewers) flow into the streams which empty to the Harbor and Lake Superior. WLSSD is designed to handle wastewater from people and from industry, not rainwater from our roofs, roads and parking lots. This water can overload the piping system. 6. You say that the sanitary and storm water systems are separate, but I read about wastewater discharges into Lake Superior after big rain storms. Wastewater discharges into Lake Superior or the St. Louis River following storms are the result of overflows of the sanitary system that primarily c
