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6.G. - Page 146 of 238 <br />ATTACHMENT J <br />DEFINITIONS AND FORMULAS FOR <br />CALCULATING PROPORTIONAL ANNUAL WATER USE <br />TABLE OF CONTENTS <br />This Attachment contains four sections, three figures, and five tables. <br />Section A: <br />Water Meters <br />Section B: <br />Calculation of Proportional Annual Water Use <br />Section C: <br />Data Requirements and Schedule <br />Section D: <br />County Line and In -City Terminal Reservoir Meter <br />Calibration and Maintenance <br />Figure 1: <br />Locations of SFPUC County -Line Meters and In -City <br />Terminal Reservoirs <br />Figure 2: <br />Generalized Schematic of Lake Merced Pump Station <br />Figure 3: <br />Locations of System Input and In -Line Meters <br />Table 1: <br />Base Usage and Allocation Rates <br />Table 2: <br />Locations of SFPUC County -line Meters and In -City <br />Terminal Reservoirs <br />Table 3: <br />Locations of SFPUC System Input and In-line Meters <br />Table 4: <br />County -line Meters, In -City Terminal Reservoirs and <br />Associated Metering Equipment <br />Table 5: <br />Meter Calibration and Maintenance Frequency <br />Table 1 presents the format for the water usage and allocation rate calculations for <br />reference and to illustrate the definitions and formulas described in Sections A through C. <br />Tables 2 and 3 list the meters whose locations are shown on Figures 1 and 3, respectively. Table <br />1 <br />March 11, 2009 <br />477 <br />