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10 <br /> ENVIRONMEMAL <br /> City of Decatur,IL SERMCES6 <br /> Project Experience <br /> CHICAGO,&K-Hydraulic Engineering Servicesfor the Department of Water <br /> ADS initially began working with the City mfChicago in1SD4and <br /> P did soperiodically until 19G0'Since 196{lwehave partnered <br /> oe- <br /> with the City mnconsecutive year-long projects. During that time, <br /> major ADS projects have saved the City millions ofdollars inlost <br /> revenue.VVehave completed numerous projects for the Water <br /> Department including acomprehensive leak detection survey <br /> program from the 1S9Oatocurrent. Some ofthe recent <br /> highlights ofthese surveys include: <br /> Year <br /> 0NesSurveyed #ofLeaks Fmuo6__ _ AntlUaiWater LOSS <br /> 1980 miles 731 leaks 8.5k46D <br /> ZO19 1328 miles 659 leaks 7.0JAGD <br /> ZU�8 <br /> 1734 miles 600 leaks 6�7k3GU <br /> Z017 1783 miles 829 leaks 10.1 MGD <br /> Z016 1557 miles 793 leaks 9.4KAGD <br /> ZO1� 1082 miles 661 leaks 8.lK;GD <br /> (data available to 6/1/21) <br /> ADS will continue toprovide our leak detection services in2O21which will also include much nfthe City's <br /> larger diameter water mains. We also anticipate continued services into 2022 and 2023. <br /> We conduct services at the request of the City of Chicago Water Department which serves the City and <br /> 118 surrounding suburbs.The department oversees two filtration plants-South Water Purification Plant <br /> and Jardine Water Purification Plant-that serve a population of 5,000,000 people and deliver an average <br /> of 376 billion gallons of water per year with an average daily pumpage of 727 million gallons to the City <br /> and 303 million gallons to the suburbs. The City of Chicago water system covers an area of 228 square <br /> mnUmy in the City and 524 square miles in the suburbs' The water distribution system consists of 4,233 <br /> miles mfmain ranging|nsize from six tm6Oinches. <br /> Albert Wtorkowmski P.E, ' | <br /> ' <br /> Coordinating Engineer 0Firms Involvement:1904-Current <br /> | <br /> | Department of Water&Sewer <br /> , <br /> Management-Jardine Water Plant / ` ' <br /> Total Annual Cost:$1,500,000+ <br /> City of Chicago,/l 60811 <br /> ' <br /> (312)742-3619 � Project Manager:Steve Huggins,PM <br /> | i <br />