Editor's note: Here, we highlight just a portion of the Evanston, Ill., collections system. For more information, check out the December cover story, "Innovation And Proactivity Put The City Of Evanston Ahead Of The Storm."To deal with stormwater overflows, cities across the country are separating combined sewers and digging new storm sewer lines — at a considerable expense.Not so in Evanston, Ill. The city has taken a different approach, installing Reg-U-Flo flow restrictors from Hydro International in alley and street drainage inlets to its combined sewer system, which prevents the combined system from overloading during heavy rains.The stormwater that stays on
