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a. Options to reduce turbidity and improve water quality. �� <br /> b. Single stage vs. two stage softening. �' <br /> c. Alternative softening basins/reactors. <br /> d. Membranes. <br /> e. Disinfection and the control of DBPs. <br /> f. Presedimentation basins. <br /> g. Alternative chemical feed systems. <br /> h. Chloramines, chlorine dioxide, and ozone. <br /> i . Giardia and Cryptosporidium cyst control . <br /> F. Existing Facilities Assessment <br /> l. Review and analyze jointly with City staff the operations and <br /> maintenance concerns. <br /> 2. Perform comprehensive on-site investigations to identify <br /> condition and needs of the intakes, raw water pump station, <br /> main treatment building, carbon slurry building, clearwell , <br /> and return water pump station. This investigation will <br /> include the following: <br /> a. Building mechanical systems which include <br /> dehumidification, heating, air conditioning ventilation, <br /> and plumbing systems. <br /> b. Elzctrical and instrumentation systems. <br /> c. Civil and structural systems. <br /> d. Architectural systems. <br /> e. Code compliance. ', <br /> f. Materials and chemical handling systems, including �� <br /> elevators. �I <br /> g. Permitting requirements. <br /> SLW3:023 A-4 April 1, 1997 <br />