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6.G. - Page 149 of 238 Lake Merced Pump Station), the source water is from the Sunset Reservoir (not the County -line), and the direction of flow through the Sunset venturi meter is reversed. Under this pumping scenario, the recording instrumentation on the Sunset and Sutro venturi meters are designed to not record flow on their respective recorders such that the in -City transfer of water between Sunset and Sutro Reservoirs is not included as a County -line delivery to the City. Figure 2 provides a generalized schematic of the Lake Merced Pump Station and the typical direction of flow from the County -line, through the pump station. (2) County -line deliveries to Lake Merced In order to raise and maintain water levels in Lake Merced, the SFPUC occasionally delivers water directly from the Regional Water System to Lake Merced. Deliveries from the Regional Water System to Lake Merced are accomplished at the Lake Merced Pump Station. The procedure involves operating valves on the suction side of Sunset Pump No. 2 such that water may flow by gravity in the Sunset Supply Pipeline, from San Mateo County, across the County -line and into San Francisco, through Lake Merced Pump Station and into the Lake Merced wet well. A 16 -inch pipeline connection on the suction side of Sunset Pump No. 2 allows for deliveries of water to the wet well (see Figure 2). Water deliveries from the Regional Water System to Lake Merced are considered County -line deliveries and an in -City usage in the calculation of water allocation rates. b. In -City Terminal Reservoirs Water usage by the City includes water deliveries from the SFPUC's "terminal reservoirs." The terminal reservoirs are: 1) Sunset Reservoir, 2) University Mound Reservoir, and 3) Merced Manor Reservoir. The terminal reservoirs are shown on Figure 1. C. System Input and In -Line Meters 0 March 11, 2009 a:1