Metropolitan Water District

EPA/AMWA. 1989. U.S. Environmental Protection Agency/ Association of Metropolitan Water Agencies. Disinfection by-products in United States drinking waters. Vol. 1 Report. Metropolitan Water District of Southern California, Los Angeles, CA, November 1989. Table 5-2, Figures 5-4 and 5-22. 

Hydropower provides an essential contribution to the national power grid its capability to respond in seconds to large and rapidly varying loads, which other baseload plants with steam systems powered by combustion or nuclear processes cannot accommodate. Also, ownership is spread over a broad base. The owners comprise federal and state agencies, cities, metropolitan water districts, irrigation companies, and public and independent utilities. Individual persons also own small plants at remote sites for their own eneigy needs and for sale to utilities... 

National Arsenic Occurrence Survey (NAOS) sampled raw water from approximately 270 public supply wells in all 50 states, and predicted arsenic concentrations in finished water based on known treatments implemented by the systems (Frey and Edwards, 1997). Frey and Edwards (1997) also provided national estimates based on reexamining the NIRS data and a dataset of finished water from 60 large systems (serving >10,000 people) sampled by the Metropolitan Water District of Southern California (Davis et al, 1994). In 1973 to 1997, the USGS analyzed for arsenic in 18,850 raw-water samples from wells in 49 states (all but Hawaii) and Puerto Rico this dataset included 2,262 samples from public supply wells (Focazio et al., 2000). Several older national surveys of arsenic have been described in documents prepared for the USEPA (ISSI Consulting Group et al., 2000). 

Bissell,C.A., Weymouth,F.E. (1935).Memoirfor ArthurP. Davis. Trans. ASCE 100 1582-1591. Bissell, C.A., ed. (1939). The Metropolitan Water District of Southern California. History and First Annual Report. MWD Los Angeles. 

After a six-year stint with the Metropolitan Water District, he joined the Southern California Edison Company in 1922, remaining there for almost 40 years. He retired from it in 1962 as vice-president of engineering and construction but went on for another 30 years as consultant to the Edison and Bechtel Corp., San Francisco CA. During his second career Chadwick travelled more than 7 million miles to work on projects such as the San Francisco Bay Area or the Washington DC subway system, hydro-electric power plants in Canada, a power facility in Saudi-Arabia and an official inquiry into the causes of the 1976 failure of Grand Teton Dam. 

Ithaca NY, and professor of hydraulic engineering at Rensselaer Polytechnic, Troy NY, from 1916 to 1919. Daugherty was professor of hydraulic and mechanical engineering at Caltech, Pasadena CA, from then until retirement in 1956. In parallel he was consultant of numerous firms and corporations, including the Metropolitan Water District on pumps for the Colorado River Aqueduct, or the Bureau of Reclamation USBR on pumps for the Grand Coulee project on Columbia River from 1938 to 1940. He was a member of the ASME Commission for Revision of Code for Testing of Hydraulic Power Plants. 

From 1921 to 1928 he woiked for the US Bureau of Reclamation USBR at American Falls ID, and later at Denver CO. He was employed by the National Irrigation Commission of Mexico until 1929, when he left to work for the Los Angeles Department of Water and Power. He was in 1930 transferred to the Metropolitan Water District of Southern California. He was promoted there from senior engineer to hydrographic engineer in 1944, working in this capacity until his retirement in 1965. 

He was employed by the Sewer Department, Boston MA. He was transferred to the Boston Metropolitan Water District in 1896, where he worked on designs of pipe lines, reservoirs, and pumping stations. From 1900 he was employed at the Bureau of Filtration,... 

He was member of the State Consulting Board for Southern California, the Water and Power Resources Committee, Los Angeles CA, the Metropolitan Water District, and of the Pasadena, San Marino and other water districts. He was member of the American Society of Civil Engineers ASCE, and in the 1930s president of its Los Angeles Section. 

Thomas had a professional career both as a civil engineer in dam engineering, and as academic person mainly at Caltech. Next to his research, he served in many faculty administrative duties. In addition, water supply for California was his specialty. It was stated He was one of the planners and organizers of the Metropolitan Water District, who conceived the brilliant engineering project of bringing Colorado River water to the populous centers of the Southland by aqueduct . 

Weymouth, F.E. (1940). Report of the Metropolitan Water District. District of Southern California Los Angeles. 

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