Technical Reports Document Library

On June 24, 1991, the Edwards Underground Water District (EUWD) received a completed application form from County Line Water Supply Corporation requesting a leak detection/location survey on its water distribution system. A pre-survey conference was held October 26, 1993 at the County Line Water Supply Corporation office to discuss the work to be performed. It was agreed that EUWD would perform sonic leak detection on all available access points, computerized leak location as needed, record any unusual system conditions found, and submit to the Corporation a revised master water plat with the final report.

Mr. John E. Gapinski of the EUWD began the survey on April 4, 1994, and the survey was concluded on April 18, 1994. Over the course of the survey, EUWD surveyed a total of 567 access points including 395 customer service connections, 2 fire hydrants, 120 main line valves, and 50 other access points covering 44.26 miles of distribution mains.

Mr. Gapinski detected a total of 7 leaks. This total included 2 service line leaks, 3 valve leaks, and 2 customer side leaks.

As part of the survey, EUWD located 176 customer service connections, 3 master meters, 42 valves, 2 fire hydrants, and .45 miles of distribution main not shown on the master water plats. EUWD staff was unable to locate 2 main line valves, 3 air relief valves, 1 flush valve, and 6 customer service connections. EUWD noted 2 air relief valves, and 3 customer service connections that have been removed from the system.