The successful bidder shall supply a system for generating CHLORINE DIOXIDE as an aqueous solution from the reaction of SODIUM CHLORITE and CHLORINE GAS, the 3 units shall be capable of delivering the required amount of Cl02 at each feed point on a continuous basis, 24 hours a day, to meet the CT and TTHM requirements set by the EPA and TCEQ. The 3 units shall be properly sized, and designed specifically for the intended application set forth in the general description above. The unit shall be equipped with a Siemens non contact magnetic flow measuring device and stream pH measuring device with 4-20 mA output signal to assist in maintaining system efficiency, and to prevent waste of plant water. Shall be equipped with loss of chlorine and/or water feed automatic shutdown. A fully equipped standby unit shall be provided. The unit shall not require pH measurement or adjustment for operation. Each unit shall be provided with necessary devices to manually adjust the chlorine dioxide feed rate to provide means to accurately split clo2 into 4 separate injection points with each generator capable of supplying at least 2 injection points and each capable of supplying any 2 of the 4 points.
