Four Corner - Texas Water Development Board

TABLE 6.2.1
KINGSBRIDGE MUD
WATER SUPPLY AND
WASTEWATER TREATMENT COST
Wastewater Treatment (Capital Recovery Costs)
350 Single Family Connections $
Contingencies (10%)
TOTAL WASTEWATER TREATMENT $
Cost per connection $
185,000
18 500
203,500
581
Water Supply (Capital Recovery Costs)
350 Single Family Connections $
Contingencies (10%)
TOTAL WATER SUPPLY $
Cost per connection $
TOTAL COST PER CONNECTION $
359,300
35 930
395,230
1,129
1,711
6.3 SYSTEM HYDRAULICS AND PUMPING REQUIREMENTS
The existing residences to be served within the Four Corners Planning Area are
distributed throughout the service area which requires long runs of waterlines and
sanitary sewer lines to provide service.
Waterlines operate under pressure and are
typically installed at depths of 4-6 feet below natural ground. The proposed Kingsbridge
layout for the water distribution, shown in Appendix A, provides for two points of
connection to the Kingsbridge water supply system. This allows Four Comers 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 proposed
Kingsbridge layout for the wastewater collection system makes use of two lift stations
Four Comers Area Water and Wastewater Facilities Planning Study
Page 6-4
FINAL REPORT
Revised 2110/99