GROUNDWATER TRANSFER PROGRAM NORTH HARRIS COUNTY REGIONALWATER AUTHORITY

摘要

The North Harris County Regional Water Authority (Authority) accepted wholesale customer requests to build portions of its 2010 Groundwater Reduction Plan transmission system in 2005. The transmission system will convey groundwater from districts with excess supplies (seller districts) to districts with water quality issues or immediate water supply needs, (buyer districts). The Authority established the Groundwater Transfer Program (GTP) in 2004 and designed and constructed three GTP transmission systems, I.e. the North, South and West Systems, in 2005 and early 2006. This paper discusses how the Authority successfully implemented the GTP. Flow monitoring test data was analyzed and the hourly multipliers for certain districts were combined into either composite residential or mixed land use diurnal curves. The University of Kentucky PIPE2000 computer program was used to run static and extended period simulation models of minimum and maximum GTP operating pressures. Control valve stations equalized the daily and seasonal fluctuations occurring outside the GTP transmission system, I.e., within the district’s water systems. Fire hydrant tests indicated that seller districts could meet their contract capacities.