06-I Water Production Study - Laserfiche WebLink

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C. Why did the Aish-ict Participate in the Program? TheTexasOprimizationProgramiscomp(etelyvoluntary. TheDistrictsawtheprogramas an oppoRunity to assess the treatment planYs capabilityto meetthe proposed more sh-ingent oal enhanced surface water treahnent nile and disinfection by-products regul` S° o id,iumgan of the program is to reduce the risk of waterbom diseases such as Cryp p Giardia. The District felt that by taking this pro-active stance that it would gain valuable insighi into projecting future capital and operahng expenditures to meet the new regularions. The Aistrict also has established a leadership role in the region's water urilities communiry. The District is considered a technical resource by many of the region's water utiliries and is often approached by the rewlatory agencies to pioneer newwater progams. None ofthis activity would be possible without the foresight and support of the DistricYs Boazd of; Directors and admunistrative staff. The District's recognirion ofthe benefits for pro- ~ V va plannulgisan essenrialparttoanysuccessfiilprogramorurilityoperarion. Asalast,y ry significant, point is the plant's operating staff's desire to achieve the very challenging and demanding performance criteria from the Texas Optimizarion Program. Without the commihnent and suppo R of the Board of Directors, the administrative management, the plant operating staff, and regional water utility support this program woutd nothave been possibie. II. BACKGRO'(JND A. Facility Design Features The West W aterTreatment Plant was constructed in 1985 and is rated by theTexas Natural Resource Conservation Commission as a 10 MGD plant. The facilities consistofaterminal storage reservoir for pre-settling, a rapid mic unit for chemical miYing, cwo-stage flocculation with variable speed drive units, sedimentation bazin with tube settlers for enhanced settling, variable decluung rate filters with air assisted backwash, multiple disinfection zones and baffled clearwell for enhanced disinfection contact time. Figure 3 shows the facility layout. Fipure 3: Facility Layout i i I I ~ on -~rt• I ~ I I ~ I ~ ~ I 1 I i y... ~_..V. ~ I I I -------------J L There are several unique features relating to the design of this faciliry. Figure 4 depicts these features. They include the following: