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Denver Water Department ~ - . September, 1978 Successive Use Newsletter This newsletter is to De a monthly publication prepared by the Denver Water Department. It will provide information on the status of the Denver Water Department's Successive Use Program along with a review of the programls accomplishments. The first issue will attempt to review the program and to set out several facts regarding the Denver Water Department's involvement with water recycling. The Blue River Decree was handed down in 1955 and initiated the Denver Water Department's search for applicable methods of succes- sive use. Evaluations were made of the various alternatives for reuse of water into the late 1960's. The results of these evalua- tions have led the Department to believe that the most applicable form of reuse is a direct recycling of properly treated sewage effluent into the Denver potable supply system (in addition to the more easily implement8d, but limited, exchange). To this end an advanced wastewater treatment plant was built at the Metropolitan Denver Sewage Disposal District Number 1 plant in 1970. This five gallon-per-minute facility was built and has been operated in cooperation with the University of Colorado. The Denver Water Department has supported 20 graduate research studies (18 Master thesis, 2 PhD dissertations) in the area of advanced waste treatment and potable reuse. Since 1970 the reuse program has been staffed full-time by one technician and one professional while utilizing the expertise of the entire Denver Water Department staff. The program has received Denver Water Department funding of over $900,000 through June of 1978. The reclamation staff of the Denver Water Department has worked closely with qualified professionals from EPA, various engineer- ing consulti.ng firms, and prominent members of the academic community, to develop the concept for a one-million-gallon-per- day potable reuse demonstration facility. CH2M-Hill, an inter- nationally known consulting firm, was hired by the Department to incorporate the concensus of this knowledge into a two volume "Conceptual Design Report." The proposed cost for final design, construction, and operation and maintenance of this facility for a ten year period is in excess of 19 million dOllar,s.". r. ,-",-,,-~,':.-f';71;';J., ,c,.'. ~~ '" 1"" ' " " J ',J] II 11 \.I '.' ' ' -, ,.;, 1 I \ \,.i SED 2? 1978:J\ \ \1\.'.., ' r " , v- ___/L_ C-;L:- -" '-',' - I>' 'f,:F; .qnnS