thisdayinwaterhistory.wordpress.com
August 28, 1869: Birth of Allen Hazen; 1882: Death of John Rose Leal
August 28, 1869: Birth of Allen Hazen. “Allen Hazen (1869–1930) was an expert in hydraulics, flood control, water purification and sewage treatment. His career extended from 1888 to 1930 and he is,…