August 29, 1924: A complete filtration plant is finally built in Richmond, Virginia. Albert Stein built the first effort to filter a drinking water supply in the U.S. in Richmond in 1832. However the filtration plant was not successful and it was abandoned in 1835. Other efforts were made over the years to treat the Richmond water supply.
“Although Richmond did nothing effective to improve its water supply until well into the twentieth century, settling basins were proposed from time to time. In 1860, the city council asked the superintendent, Davis, and its city engineer, W. Gill, to make plans for a new reservoir “with a proper filter.” They proposed filters cleaned by reverse flow. A new reservoir was put in use January I, 1876. Later, under Superintendent Charles E. Bolling, and the health officer, two narrow settling basins, about a mile long, with provision for drawing off the sediment alternately, were provided. On December 22, 1909, large coagulation basins were added. Chlorination with hypochlorite was begun June 26, 1913, on Levy’s recommendation, following a few cases of typhoid fever in Richmond. In 1914, apparatus for applying liquid chlorine was installed. But not until August 29, 1924, was a complete purification plant available, with coagulation basins, mechanical filters, aerators and a clear-water basin, for the whole of 30-mgd capacity.”
Reference: Baker, Moses N. 1981. The Quest for Pure Water: the History of Water Purification from the Earliest Records to the Twentieth Century. 2nd Edition. Vol. 1. Denver, Co.: American Water Works Association, 130-1.