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SECTION 6: POTENTIAL FOR HEAD RECOVERY AT MWD CONNECTIONS 17 6.4 MWD STATION SA -3 The pressure reducing station SA -3 is installed in a vault under the sidewalk at the south east corner of Bristol Street and McFadden Avenue. The configuration is shown in Figure 3, with one PRV and two isolation valves, approximately eight feet below the sidewalk. The SCADA monitoring and associated electrical meter are installed in small cabinets mounted nearby on the sidewalk. The SCE Service Account is 3-035-8796-80 and the Rate Schedule is TOLI-GS-1-A. The PRV flow rate is typically controlled to 8 CFS when in use. The observed pressure drop was from 172 to 85 psig, according to the installed pressure gages. 1..WTI �: Figure 3 SA -3 Existing Configuration Vault Under Sidewalk 6.5 POTENTIAL PROJECT AT SA -3 To Santa Ana Distribution The proposed project at SA -3 is to install a new hydro -turbine generator in parallel with the existing Pressure Reducing Valve. There is no room in the existing vault, so a new vault would be required side by side with the existing vault. This is illustrated in Figure 4. The new vault would contain the new hydro -turbine and generator, a remotely controlled valve on the inlet of the turbine and an isolation valve on the discharge, an electrical panel to control the turbine and take power from it, a new metered connection to deliver the power to SCE, and some additional SCADA points. Newcomb I Anderson I McCormick 19H-25 CITY OF SANTA ANA