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Figure 11 <br />Strontia Springs Reservoir End-of--Month Storage Contents <br />lo,ooo <br />~ s,ooo <br />~, 6,000 <br />~, <br />0 <br />~ 4,000 <br />w <br />O <br />"~ <br />w 2,000 <br />0 <br />O M ~O O~ N v1 00 ~ h O M ~O O~ N v1 00 ~ <br />v1 v1 v1 v1 ~O ~O ~O h h h 00 00 00 00 O~ O~ O~ O O <br />ti ti ti ti ti ti ti ti ti ti ti ti ti ti ti ti ti ti ti <br />10) Denver Intake (aka Conduit No. 20-Structure ID 0801002) and Platte Canyon Reservoir <br />(Structure ID 0803500) <br />The Denver Intake Dam is a 35-foot high concrete gravity diversion dam is located <br />approximately three miles downstream from Strontia Springs Reservoir and is Denver Water's <br />main diversion point on the South Platte River. Water is diverted through the Intake Dam <br />(Conduit No. 8) and conveyed through Conduit No. 20, an underground pipeline, to Platte <br />Canyon Reservoir and Marston Reservoir for eventual treatment at the Marston Water Treatment <br />Plant. Diversions through the Intake Dam include Roberts Tunnel transbasin deliveries, <br />mountain reservoir storage releases, and South Platte direct flow and storage water rights. <br />Platte Canyon Reservoir is an off-channel reservoir that was completed in 1904 and receives <br />water from Conduit No. 20 and the High Line Canal. Platte Canyon Reservoir was originally <br />operated as a regulating facility for the Kassler Plant and remained in operation through 1985, a <br />few years after the Strontia Springs Reservoir/Foothills Water Treatment Plant system came <br />online. The Kassler Plant was decommissioned in 1985. <br />Specifics regarding Denver Conduit No. 20 include: <br />• 340 cfs capacity <br />• Pipeline losses are minimal. Measurements at the Denver Intake are used to estimate the <br />deliveries to the treatment plant or Marston Reservoir. <br />Denver Water Board Operating Memorandum 21 of 40 <br />