C153349 Feasibility Study

• Contract/PO #: C153349
• Contractor Name: Brook Forest Water District
• Contract Type: Loan
• Water District: 9
• County: Jefferson
• Bill Number: SB 80-67
• Loan Projects - Doc Type: Feasibility Study

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The characteristic curves for each of the pumps are presented in Figure-8.

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2. Distribution Mains - The water distribution mains are almost exclusively

4-inch cast iron pipe. The mains follow existing street alignments but have

not been placed at a consistent poillt in the road template. "As constructed"

plans and profile sheets for the distribution system are not available. Depth

of cover is variable and is as shallow as 3 1/2 feet in some areas. The

inconsistency of alignment and depth has made the mains difficult to locate

for maintenance and repairs.

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The east end of the district was developed first and was supplied exclusively

from Well No.1. As more residences were built to the west, the system was

extended as necessary to serve the llew users. The stage construction has

resulted in dead end mains on Aspen Meadow Drive, Brook Forest Highway, Brook

Forest Lane, St. Moritz Drive, and forest Estates Road. To prevent freezing,

bleeds are used at two of the dead ends and three have recirculating systems.

Each bleed wastes a significant vol~me of water in the winter. The distribution

lines, particularly shallow and dead end lines. have experienced severe freezing

problems resulting in a number of btoken mains. During the 1978 - 79 winter

season. approximately 100 out of 160 families were without water for a good

portion of the season.

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The number of valves in the system is minimal, Only 36 gate valves are

provided in the mains to serve approximately 41.700 feet of pipeline. In several

areas. this leaves excessively long segments of main which must be closed down

to make repairs.

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Two in-line pump stations provide lifting capabilities for transferring

water between storage tanks, as needed. The booster pumps aid in providing

water to the upper portions of the district when wells are shut down for main-

tenance purposes. A by-pass line is also provided to allow water to flow by

gravity to the lower storage tanks.

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The booster pump station in the eastern portion of the district is referred

to as the Wham pump station, named after adjacent residents. Two regenerative

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