Faced with a strong demand for housing starts in the rapidly growing new town of Mountain House, California, the
Mountain 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 and
disinfection byproducts, while also doubling the capacity of their existing 2.5 mgd Trident® filter water treatment plant (WTP) quickly and
cost-effectively. The Mountain House WTP currently serves a population of approximately 3500 people in three
master planned neighborhoods. The Community of Mountain House is projected to have an ultimate population of
approximately 44,000 in 12 neighborhoods. Raw water from the California Aqueduct is transferred to the WTP from
a remote pump station, owned and operated by the Byron Bethany Irrigation District, located 3-miles away. The
project involved the evaluation of a variety of water treatment options including additional pretreatment ahead of the
existing WTP to increase its capacity from 2.5 to 5 mgd. Leased membrane filtration units, high rate pretreatment
options, enhanced disinfection with ultraviolet (UV) disinfection, and additional Trident® units were all evaluated. The interim
capacity project was delivered using an accelerated design and construction method that involved prepurchase of
key process components to meet capacity and water quality objectives. This paper presents the treatment
technologies selected for the expansion and details of the accelerated design and construction method used to
achieve the project goals. Includes tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 3.5 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 35 |
| Published : | 06/01/2007 |
