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  2. Our Lady of the Angels School fire - Wikipedia

    en.wikipedia.org/wiki/Our_Lady_of_the_Angels...

    [35] Sweeping changes in school fire safety regulations were enacted nationwide. Some 16,500 older school buildings in the United States were brought up to code within one year of the disaster. Ordinances to strengthen Chicago's fire code and new amendments to the Illinois state fire code were passed.

  3. History of water supply and sanitation - Wikipedia

    en.wikipedia.org/wiki/History_of_water_supply...

    The first sewer systems in the United States were built in the late 1850s in Chicago and Brooklyn. [86]: 43 In the United States, the first sewage treatment plant using chemical precipitation was built in Worcester, Massachusetts, in 1890. [96]: 29

  4. History of education in Chicago - Wikipedia

    en.wikipedia.org/.../History_of_education_in_Chicago

    Counts, George S. School and Society in Chicago (1928) online "Free Public Schools of Chicago" Eclectic Journal of Education and Literary Review (January 15, 1851). 2#20 online; Havighurst, Robert J. The public schools of Chicago: a survey for the Board of Education of the City of Chicago (1964). online

  5. Chicago area water quality - Wikipedia

    en.wikipedia.org/wiki/Chicago_Area_Water_Quality

    Combined Sewer System. The change in the river's water flow was estimated to provide enough treatment-by-dilution for up to a population of three million. [1] However, in 1908, it became clear to the Chicago Sanitary District that the city’s population was continuing to grow and that the population would soon exceed the treatment capacity that the canal offered.

  6. Mayfair Pumping Station - Wikipedia

    en.wikipedia.org/wiki/Mayfair_Pumping_Station

    The station serves most of the northwest side of Chicago and several surrounding suburbs that purchase water from Chicago. Seven steam driven pumps are used to pump water. The venturis at the station do not have bronze throat-liners, unlike those at other Chicago-area pumping stations, but this is not reported to be a problem (B. Whalin, USDA ...

  7. Once Milwaukee's rivers were treated as open sewers, here are ...

    www.aol.com/once-milwaukees-rivers-were-treated...

    The Clean Water Act in 1972 made way for the deep tunnels. Across the country, people started waking up to the importance of freshwater after Lake Erie’s Cuyahoga River caught fire for a 13th ...

  8. Metropolitan Water Reclamation District of Greater Chicago

    en.wikipedia.org/wiki/Metropolitan_Water...

    As the District established a new Chicago Area Waterway System (CAWS), new advancements in water treatment technology were made, leading to the creation of treatment plants and interceptor sewers that conveyed water from local collection systems to the plants for treatment.

  9. Great Chicago Fire - Wikipedia

    en.wikipedia.org/wiki/Great_Chicago_Fire

    The Great Chicago Fire was a conflagration that burned in the American city of Chicago during October 8–10, 1871. The fire killed approximately 300 people, destroyed roughly 3.3 square miles (9 km 2) of the city including over 17,000 structures, and left more than 100,000 residents homeless. [3]