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Water in Lakewood Reservoir is released into the Lakewood Pipeline (at Headgate No. 1 of the <br />Boulder City Pipeline, also referred to by the City as "Intake No.1). Lakewood Pipeline was <br />originally constructed in 1906, and enlarged in the early 1950s to a design capacity of 20.0 MGD, <br />or roughly 30 cfs. Over time the pipeline deteriorated and by the late 1990s capacity had been <br />reduced to approximately 14 MGD. The City recently completed repairs to portions of the <br />Pipeline to correct corrosion and leakage problems and restore to the original design capacity, i.e., <br />20 MGD. <br />Water in the Lakewood Pipeline is conveyed approximately 10 miles to the City's Betasso Water <br />Treatment Plant. The Betasso treatment plant came on-line in 1965 and has a capacity of <br />approximately 45 MGD. The Betasso Plant is operated by the City as the primary water treatment <br />facility. Betasso receives raw water from both the Lakewood Pipeline (diversions from North <br />Boulder Creek) and from the Barker Gravity Pipeline (diversions from Middle Boulder Creek) as <br />discussed below. <br />HydroBase Data <br />The monthly diversion data available in HydroBase over the 1950-2002 period of record <br />pertaining to the City of Boulder's operations of the North Boulder Creek System include the <br />following: <br />Boulder City Pipeline No. 1 (WDID 0600599) <br />Silver Lake Pipeline (WDID 0600600) <br />City of Boulder Pipeline (WDID 0600601) <br />Town of Boulder Ditch (WDID 0600512) <br />Period of Record <br />1985 - 2003 <br />1985 - 1987 <br />1975 - 1984 <br />1950 - 1974 <br />City of Boulder Memo.Doc Page 7 of 30 March 9, 2005 <br />Betasso Water Treatment <br />