As of January, 2011, WCID #12 provides municipal water services for hundreds of connections and is considered one of the larger water users in North Galveston County by the Gulf Coast Water Authority (GCWA), our water provider.
GWCA is the wholesale providers of potable water to the Bayshore water districts along Hwy 146 from San Leon north to Kemah/Clear Lake Shores. As the demand for water has increased in recent years, the capacity of the existing 12” water line serving this area has been stretched at times beyond its limits.
GCWA conducted an engineering study to determine if any actions could be taken to alleviate the problem short of installing a new water along this 5 mile stretch.
For the Phase 1 improvements, it is recommended that the tank fill operation be modified such that the receiving ground storage tank(s) are operated in a “full” condition; and the incoming flow pipeline be equipped with flow control devices that will throttle the flow rate based on tank level.
The following graphic shows how the flow control device would be operated based on tank level.
With the following tank fill operation, the tank will remain in a full or near full condition under normal conditions. The tank will not be allowed to drain to a 1/2 full state before the flow is “turned on”.
The study revealed that if additional flow controls were installed at each water district’s ground storage tanks along with a remote monitoring system, it may be possible to meet each district’s water demand without adversely impacting the other districts ability to receive their water.
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