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BACKFLOW PREVENTION ASSEMBLY <br />CITY OF REDWOOD CITY <br />ENGINEERING AND TRANSPORTATION <br />NOT TO SCALE <br />City California <br />Redwood <br />Founded 1867 W - 31 <br />DETAIL <br />STANDARD <br />PVCDATE: 12/8/25 <br />DOUBLE CHECK VALVE <br />7.A. - Page 40 of 121 <br />46