AWWA ACE65316

Faced with a strong demand for housing starts in the rapidly growing new town of Mountain House, California, theMountain House Community Services District (MHCSD) and the housing developer (Trimark Communities),sought a way to solve the dilemma of addressing regulatory concerns about stringent microbial removal anddisinfection byproducts, while also doubling the capacity of their existing 2.5 mgd Trident® filter water treatment plant (WTP) quickly andcost-effectively. The Mountain House WTP currently serves a population of approximately 3500 people in threemaster planned neighborhoods. The Community of Mountain House is projected to have an ultimate population ofapproximately 44,000 in 12 neighborhoods. Raw water from the California Aqueduct is transferred to the WTP froma remote pump station, owned and operated by the Byron Bethany Irrigation District, located 3-miles away. Theproject involved the evaluation of a variety of water treatment options including additional pretreatment ahead of theexisting WTP to increase its capacity from 2.5 to 5 mgd. Leased membrane filtration units, high rate pretreatmentoptions, enhanced disinfection with ultraviolet (UV) disinfection, and additional Trident® units were all evaluated. The interimcapacity project was delivered using an accelerated design and construction method that involved prepurchase ofkey process components to meet capacity and water quality objectives. This paper presents the treatmenttechnologies selected for the expansion and details of the accelerated design and construction method used toachieve the project goals. Includes tables, figures.

Product Details

Edition:

Vol. - No.

Published:

06/01/2007

Number of Pages:

35

File Size:

1 file , 3.5 MB