Fox Valley OperatorsAssociationCMOM Capacity Management Capacity ManagementOperationMaintenance January 2011 Background  Late 1800's Germ Theory by Koch & Pasteur  1900 Beginning of the Profession Water Quality linked to Health Risks Water Quality linked to Health Risks Protection of drinking water sources Protection of drinking water sources Major Cities begin development of sanitation Major Cities begin development of sanitation Chicago's Sanitary and Ship Canal Chicago's Sanitary and Ship Canal  1910 – 20's Treatment processes developed Cities start to boom Cities start to boom Higher density creates need for treatment Higher density creates need for treatment Constructing sedimentation tanks Constructing sedimentation tanks get the big stuff out get the big stuff out  1930 – 40's Treatment advances More growth – more pollution More growth – more pollution WPA projects create funding source for POTWs WPA projects create funding source for POTWs But Implementation of treatment not uniform But Implementation of treatment not uniform
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