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FACILITY SCHEDULE NO. 4 <br />1. Name: Ranch Road 12 Substation <br />2. Facility Location: The Ranch Road 12 Substation is located at 2701 RR 12, San Marcos, <br />Hays County, Texas. <br />3. Point of Interconnection: There is one (1) point of interconnection at Ranch Road 12 <br />Substation: where the jumper from LCRA TSC's 138 -kV operating bus connects to <br />SMEU's switch 30154 <br />4. Transformation Services Provided by LCRA TSC: No <br />5. Metering Services Provided by LCRA TSC: Yes, per separate Wholesale Metering <br />Service Agreement <br />6. Delivery Voltage: 138 -kV <br />7. Metered Voltage and Location: The metered voltage is 12.5 -kV. The metering current <br />transformers are located in T2. The metering potential transformers are located on the <br />12.5 -kV operating bus. <br />8. One Line Diagram Attached: Yes <br />9. Description of Facilities Owned by Each Party: <br />San Marcos Electric Utility owns: <br />• Substation property, ground grid, gravel, fencing, and other appurtenances <br />• One (1) power transformer T2 with associated surge arresters and protective <br />relaying <br />• One (1) circuit switchers CS30155 with 138-IcV disconnect switch 30154 <br />• One (1) circuit switcher bypass switch 30157 <br />• Three (3) distribution bays including A -frames, trusses, insulators, disconnect <br />switches, surge arresters, and 12.5-IcV operating and transfer bus <br />• 12.5 -kV bus potential transformers <br />• Three (3) distribution circuit breakers RR80, RR90, and RR100 <br />• Station Service equipment <br />• Control house with station battery and charger <br />• AC and DC distribution panels <br />LCRA TSC owns: <br />• One (1) 138-IcV Operating bus including structures, insulators, hardware, <br />foundations, and jumpers <br />• Two (2) 138-IcV line interrupting motor operated switches M03969 and M03959 <br />• Two (2) 138 -kV dead-end towers with associated foundations, insulators and <br />LCRA TSC — San Marcos Electric Utility Amendment No. 1 Page 11 of 13 <br />