Four Corner - Texas Water Development Board

system. This allows Four Corners a back up source of water in the event that one supply
connection is out of service
Sanitary sewer lines operate under the influence of gravity and some of the lengths of
runs in the planning area would require sewers to be constructed at depths in excess of
20 feet to meet design criteria of the City of Houston and the TNRCC. Additionally,
construction of the sanitary sewer lines at shallower depths can reduce the cost of
construction and minimize the potential impacts of wet sand conditions. The
recommended Kingsbridge layout for the wastewater collection system makes use of two
lift stations and one pump station. The pump station, to be located in the vicinity of Old
Richmond Road will collect all wastewater flows from the Four Corners area and pump
them to the Kingsbridge MUD sanitary sewer system. The pump station can be sized to
accommodate some growth within the planning are but will initially sized with pumping
equipment necessary to serve the 350 connections. The system includes two lift stations,
one located on Boss-Gaston Road and the other on Old Richmond Road near Dora Lane,
are necessary to lift flows into the shallow gravity sanitary sewer thus eliminating the
need to construct deep trunk gravity sewers (>20 feet) along Old Richmond Road and
Boss-Gaston Road.
D. Operational Costs - With the acquisition of surplus water supply and wastewater
treatment capacity from Kingsbridge MUD, no operation and maintenance costs for the
water supply plant and wastewater treatment plant will be born directly by the Four
Corners area. The annual costs for the operation of the plant facilities is incorporated
into the rate structure for water and sewer service provided by Kingsbridge MUD.
The costs for operation and maintenance of the wastewater collection system, lift/pump
stations and the water distribution system will be the responsibility of the Four Corners
area. These costs can be assessed by the Four Corners Waster Supply Corporation or
similar entity on the customers within the planning area on a monthly basis by
incorporating the costs into the ultimate rate charges to the customers. These ultimate
rate charges would include the actual cost of service from Kingsbridge MUD in addition
Preliminary Engineering Report
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