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Water Use & Conservation

History of Water in the San Antonio River Valley

Author: Wilson WW - Alamo Area Council of Governments

Description: Colorful narrative history of the San Antonio River basin and the role of water in the location and development of San Antonio

Location: San Antonio River Basin

Summary:

Colorful narrative history of the San Antonio River basin and the role of water in the location and development of San Antonio

Water Use & Conservation

Leak Detection/Location Survey Report for the City of Kirby, Bexar County, Texas: May 1, 1995-May 16, 1995, June 6, 1995-June 30, 1995, October 25, 1995-December 12, 1995

Author: Gapinski JE and Shipley JR - Edwards Underground Water District

Description: Leak detection/location survey report for City of Kirby, May 1, 1995-May 16, 1995, June 6, 1995-June 30, 1995, October 25, 1995-December 12, 1995. Note: this function was taken over by the San Antonio Water System in 2006.

Report Number: 96-02

Location: Bexar County, City of Kirby

Summary:

On August 25, 1993, the Edwards Underground Water District (EUWD) received a request from the City of Kirby to perform a leak detection I location survey on its water distribution system. A pre-survey conference was held April 20, 1995. at the City of Kirby Public Works Center to discuss the work to be performed. It was agreed that EUWD staff would perform sonic leak detection on all available access points and computerized leak location as needed. A final report, including any unusual system condition found and an updated master water plat would be submitted to the City at the conclusion of the survey.

John E Gapinski of EUWD began the survey on May I, 1995. With the approval of Mr. Sidney Lankford, Sr., Public Works Director for the City of Kirby the survey was halted and restarted on three occasions. The survey was performed May 1, 1995 May 16, 1995. June 6, 1995 June 30, 1995, and October 25, 1995 -December 12, 1995. Over the course of the survey, EUWD staff surveyed a total of 3,080 access points including 2.64 7 customer service connections, 122 fire hydrants, 292 main valves, and 19 other access points covering 28.18 miles of distribution main. Computer leak sound correlation was performed at one location by EUWD staff.

EUWD staff detected 104 utility side leaks and 39 customer side leaks for a total of 144 leaks. The utility side leaks included 68 service leaks, 31 meter box leaks, 1 main valve leak, 1 main leak and 3 fire hydrant leaks. EUWD staff estimates 30,661 gallons of water per day has been saved by the repair of 54 utility side leaks as of February 14, 1996. The leaks discovered during the survey range from 5,328 gallons per day to numerous small meter box leaks.

As part of the survey, EUWD staff located 57 valves of various types. 15 fire hydrants and 3,250 feet of main not shown on the master water plats. EUWD staff were unable to locate 52 valves of various types and 6 fire hydrants shown on the master water plats. An additional 22 items were discovered to need some type of repair, cleaning, or adjustment.

Water Use & Conservation

Leak Detection/Location Survey Report for Bexar Metropolitan Water District, northeast/northwest San Antonio, Texas: March 21, 1994-February 24, 1995

Author: Shipley JR - Edwards Underground Water District

Description: Leak detection/location survey report for Bexar Metropolitan Water District, March 21, 1994-February 24, 1995. Note: this function was taken over by the San Antonio Water System in 2006.

Report Number: 95-04

Location: Bexar County, Bexar Metropolitan Water District

Summary:

On March 15, 1994, the Edwards Underground Water District (EUWD) received a request from the Bexar Metropolitan Water District (BMWD) to perform a leak detection I location survey on their two newly acquired water systems. These systems were formerly owned and operated by the Lackland City Water Company. A pre-survey conference was held March 15, 1994 at the BMWD Service Center to discuss the work to be performed. It was agreed that EUWD would perform sonic leak detection on all available access points and computerized leak location as needed. A final report, including any unusual system condition found and an updated master water plat would be submitted to BMWD at the conclusion of the survey.

Mark L. McGinnis of EUWD began the survey of the Northwest system on March 23, 1994. The Northeast system survey was started on April 11, 1994 by John E. Gapinski of EUWD. The Northeast survey was concluded on February 3, 1995 followed by the Northwest survey that was concluded on February 24, 1995. Over the course of the survey, EUWD surveyed a total of 22,319 access points including 18,239 customer service connections, 898 fire hydrants, 1,855 valves, and 207 other access points covering 175.93 miles of distribution main. Computers leak sound correlation was performed on 17 locations by EUWD and numerous other locations by UMWD personnel.

EUWD surveyors detected a total of 741 leaks. This total included 194 service leaks, 137 meter box leaks, 27 main line leaks, 22 fire hydrant leaks, 10 main valve leaks, and 351 customer side leaks. EUWD estimates 559,797 gallons of water per day has been saved by the repair of 387 detected leaks as of March 17, 1995. The leaks discovered during the survey range from 54,864 gallons per day to numerous small meter box leaks.

As part of the survey, EUWD located 340 valves of various types, 90 fire hydrants, and 59,385 feet of main not shown on the master water plats. EUWU surveyors were unable to locate 287 service connections, 171 valves of various types, and 2 fire hydrants shown on the master water plats. An additional 196 items were discovered to need some type of repair or adjustment.

Water Use & Conservation

Leak Detection/Location Survey Report for Springs Hill Water Supply Corporation, January 31, 1994-March 28, 1994

Author: Shipley JR - Edwards Underground Water District

Description: Leak detection/location survey report for Springs Hill Water Supply Corp, Seguin, Guadalupe County, January 31, 1994-March 28, 1994. Note: this function was taken over by the San Antonio Water System in 2006.

Report Number: 94-02

Location: Guadalupe County, Seguin, Springs Hill Water Supply Corp.

Summary:

On August 12, 1993, the Edwards Underground Water District (EUWD) received a completed application form from Springs Hill Water Supply Corporation requesting a leak detection/location survey on its water distribution system. A pre-survey conference was held January 28, 1994 at Springs Hill 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 Springs Hill a revised master water plat with the final report.

Mr. John Gapinski of EUWD began the survey on January 31, 1994, and the survey was concluded on March 28, 1994. Over the course of the survey, EUWD surveyed a total of 1,278 access points including 938 customer service connections, 60 fire hydrants, 232 main line valves, and 48 other access points covering 72.05 miles of distribution mains.

EUWD technicians detected a total of 42 leaks. This total included 3 meter box leaks, 7 service line leaks, 3 main leaks, 4 valve leaks, and 25 customer side leaks. EUWD estimates 36,914 gallons of water per day has been saved by the repair of 8 detected leaks as of March 28, 1994. The leaks discovered during the survey range from 15,840 gallons per day to numerous small customer side leaks.

As part of the survey, EUWD located 29 main line valves, 202 customer service connections, 23 fire hydrants, and .96 miles of distribution main not shown on the master water plats. EUWD staff was unable to locate 60 main line valves, 16 fire hydrants, and 77 customer service connections. An additional 13 valve stacks need cleaning and/or repair. EUWD noted 7 valve boxes missing lids and one fire hydrant missing a cap.

Water Use & Conservation

Leak Detection/Location Survey Report for Fort Sam Houston, Bexar County, Texas, July 22, 1993-February 4, 1994

Author: Shipley JR - Edwards Underground Water District

Description: Leak detection/location survey report for Fort Sam Houston, July 22, 1993 - February 4, 1994. Note: this function was taken over by the San Antonio Water System in 2006.

Report Number: 94-01

Location: Bexar County, Fort Sam Houston

Summary:

On April 23, 1993, the Edwards Underground Water District (EUWD) received a completed application form from Fort Sam Houston requesting a leak detection/location survey on its water distribution system.

Pre-survey conferences were held June 14, 1993 and June 21, 1993 at the Environmental and Natural Resources Division 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 Post a revised master water plat with the final report. It was further agreed that Fort Sam Houston would provide EUWD with one experienced utility service person and would repair all leaks detected in a timely manner.

Mark L. McGinnis of EUWD began the survey on July 22, 1993, and the survey was concluded on February 4, 1994. Over the course of the survey, Mr. McGinnis surveyed a total of 2,751 access points including 1,133 customer service connections, 447 fire hydrants, 1,064 main valves, and 107 other access points covering 68.3 miles of distribution and transmission mains. Computer leak sound correlation was performed on one location.

Mr. McGinnis detected a total of 177 leaks. This total included 42 service valve leaks, 42 main valve leaks, 42 fire hydrant leaks, 29 customer side leaks, and 22 main leaks. Additional leaks are suspected at many of these locations, but cannot be located until repairs are completed on all known leaks . As of February 4 , 1994, 39 of the 177 leaks detected over the length of the survey have been repaired. EUWD estimates 170,580 gallons of water per day has been saved by the repairs to date. The leaks detected during this survey range from 144,000 gallons per day to numerous small service valve leaks.

As part of the survey, Mr. McGinnis located 249 service valves, 97 main valves of various types, 31 fire hydrants, and .89 miles of distribution main not shown on the master plats . EUWD staff was unable to locate 109 main line valves, 91 service valves, 24 fire hydrants and 24 assorted valves. An additional 194 valve stacks need cleaning and/or repair.

Water Use & Conservation

Leak Detection/Location Survey Report for the City of Cibolo, Texas, November 2, 1993-December 2, 1993

Author: Edwards Underground Water District

Description: Leak detection and location survey report for City of Cibolo,Texas, November 2, 1993-December 2, 1993. Note: this function was taken over by the San Antonio Water System in 2006.

Report Number: 93-13

Location: Guadalupe County

Summary:

On August 29, 1991, the Edwards Underground Water District (EUWD) received a completed application form from the City of Cibolo requesting a leak detection/location survey on its water distribution system. A pre-survey conference was held October 19, 1993 at the City of Cibolo City Hall 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 City a revised master water plat with the final report.

John E. Gapinski of EUWD began the survey on November 2, 1993, and the survey was concluded on December 2, 1993. Over the course of the survey, EUWD staff surveyed a total of 985 access points including 639 customer service connections, 88 fire hydrants, 241 main line valves, and 17 other access points covering 15.52 miles of distribution mains. Computer leak sound correlation was performed on two locations.

EUWD technicians detected a total of 22 leaks. This total included 1 meter box leak, 2 fire hydrant leaks, 3 service line leaks, 3 valve leaks, and 13 customer side leaks. EUWD staff estimates 38,483 gallons of water per day has been saved by the repair of 6 detected leaks as of December 17, 1993. The leaks discovered during the survey range from 36,720 gallons per day to numerous small customer side leaks.

As part of the survey, EUWD staff located 72 main line valves, 14 blow-off valves, 27 fire hydrants, 225 services, and 3.66 miles of distribution main not shown on the master water plats. EUWD staff was unable to locate 14 main line valves, 2 services, and 2 fire hydrants. An additional 22 valve stacks need cleaning and/or repair. EUWD noted 3 meter boxes and 3 valve boxes needing lid replacement.

Water Use & Conservation

Leak Detection/Location Survey Report for the City of Leon Valley, Texas, city of Leon Valley water system, May 4, 1993-August 1993

Author: Edwards Underground Water District

Description: Leak detection and location survey report for City of Leon Valley May 4, 1993-August 1993. Note similar report for June 15, 1993-July 2, 1993. Note: this function was taken over by the San Antonio Water System in 2006.

Report Number: 93-08

Location: Bexar County

Summary:

Note similar report for June 15, 1993-July 2, 1993, a time period included in this report.

On December 7, 1992, the Edwards Underground water District (EUWD) received a completed application form from the city of Leon Valley requesting a leak detection/location survey on its water distribution system. A pre-survey conference was held March 18, 1993 at the City Public Works Center 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 city a revised master water plat with the final report.

Mark L. McGinnis of EUWD began the survey on May 4, 1993, and the survey was concluded on July 2, 1993. Over the course of the survey, EUWD staff surveyed a total of 2,401 access points including 1,715 customer service connections, 184 fire hydrants, 475 main line valves, and 27 other access points covering 32.95 miles of distribution mains. Computer leak sound correlation was performed on four locations.

EUWD technicians detected a total of 76 leaks. This total included 24 meter box leaks, 2 fire hydrant leaks, 28 service line leaks, 1 main leak, 1 valve leak, and 20 customer side leaks. EUWD staff estimates 305,500 gallons of water per day has been saved by the repair of 36 detected leaks as of August 9, 1993. The leaks discovered during the survey range from 300,960 gallons per day to numerous small meter box leaks.

As part of the survey, EUWD staff located 63 main line valves, 12 fire hydrants, and 0.1 miles of distribution main not shown on the master water plats. EUWD staff was unable to locate 14 main line valves and 3 fire hydrants. An additional 25 valve stacks need cleaning and/or repair. EUWD staff noted 3 water meters that were not registering accurately.

Water Use & Conservation

Leak Detection/Location Survey Report for Green Valley Special Utility District, May 12, 1993-October 29, 1993

Author: Edwards Underground Water District

Description: Leak detection and location survey report for City of Leon Valley May 4, 1993-August 1993. Note similar report for June 15, 1993-July 2, 1993. Note: this function was taken over by the San Antonio Water System in 2006.

Report Number: 93-12

Location: Bexar County

Summary:

On August 9, 1991, the Edwards Underground Water District (EUWD) received a completed application form from the Green Valley Special Utility District (GVSUD) requesting a leak detection/location survey on its water distribution system. A pre-survey conference was held March 31, 1993 at the GVSUD 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 District a revised master water plat with the final report.

John E. Gapinski of EUWD began the survey on May 12, 1993, and the survey was concluded on October 29, 1993. Over the course of the survey, EUWD staff surveyed a total of 6,370 access points including 4,742 customer service connections, 129 fire hydrants, 1,233 main line valves, and 266 other access points covering 337.12 miles of distribution mains. Computer leak sound correlation was performed on two locations.

EUWD technicians detected a total of 337 leaks. This total included 27 meter box leaks, 2 fire hydrant leaks, 26 service line leaks, 20 main leaks, 19 valve leaks, and 243 customer side leaks.

EUWD staff estimates 189,813 gallons of water per day has been saved by the repair of 93 detected leaks as of October 29, 1993. The leaks discovered during the survey range from 27,648 gallons per day to numerous small meter box leaks.

As part of the survey, EUWD staff located 25 main line valves, 2 fire hydrants, and .40 miles of distribution main not shown on the master water plats. EUWD staff was unable to locate 35 main line valves and C2 customer service connections. An additional 22 valve stacks need cleaning and/or repair.

Water Use & Conservation

Leak Detection/Location Survey Report for the City of Live Oak / Live Oak, Texas March 23, 1995-April 7, 1995

Author: Gapinski JE and Shipley JR (Edwards Underground Water District)

Description: Leak detection and location survey report for City of Live Oak, 1995. Note: this function was taken over by the San Antonio Water System in 2006.

Report Number: 95-05

Location: Bexar County

Summary:

On May 5, 1992, the Edwards Underground Water District (EUWD) received a request from the City of Live Oak to perform a leak detection I location survey on its water distribution system. A pre-survey conference was held Decen'!-ber 14, 1994 at the City of Live Oak Public Works Center to discuss the work to be performed. It was agreed that EUWD would perform sonic leak detection on all available access points and computerized leak location as needed. A final report, including any unusual system condition found and an updated master water plat would be submitted to the City at the conclusion of the survey.

John E Gapinski of EUWD began the survey on February 6, 1995, and the survey .was concluded on April 7, 1995. Over the course of the survey, EUWD surveyed a total of 3,062 access points including 2,253 customer service connections, 177 fire hydrants, 551 valves, and 81 other access points covering 27.92 miles of distribution main.

Computer leak sound correlation was performed on 19 locations by EUWD. EUWD surveyors detected 35 utility side leaks and 97 customer side leaks for a total of 132 leaks. The utility side leaks included 27 service leaks, 5 meter box leaks, and 3 fire hydrant leaks. EUWD estimates 27,634 gallons of water per. day has been saved by the repair of 35 utility side leaks as of June 8, 1995. The leaks discovered during the survey range from 5, 100 gallons per day to numerous small meter box leaks.

As part of the survey, EUWD located 67 valves of various types, 15 fire hydrants, and 500 feet of main not shown on the master water plats. EUWD surveyors were unable to locate 25 valves of various types shown on the master water plats. An additional 11 items were discovered to need some type of repair or adjustment.

Water Use & Conservation

Leak Detection/Location Survey Report for San Antonio water system service area within the city limits of the city of Leon Valley, June 15, 1993-July 2, 1993

Author: Edwards Underground Water District

Description: Leak detection and location survey report for City of Leon Valley, June 15, 1993-July 2, 1993. Note similar report for May 4, 1993-August 1993, a time period included in this report. This function was taken over by the San Antonio Water System in 2006.

Report Number: 93-08

Location: Bexar County

Summary:

Note similar report for May 4, 1993-August 1993, a time period included in this report.

On December 7, 1992, the Edwards Underground Water District (EUWD) received a completed application form from the City of Leon Valley requesting a leak detection/location survey on its water distribution system. A pre-survey conference was held March 18, 1993 at the city Public Works Center to discuss the work to be performed.

At this time, Mr. James J. Malone, Director of Public Works for the City of Leon Valley, requested the District also perform a survey on the San Antonio Water System distribution system within the city limits of the City of Leon Valley. Approval for this survey was requested of and granted by Mr. Joe Aceves, President and Chief Executive Officer of San Antonio Water System. An additional pre-survey conference was held May 18, 1993 at the San Antonio Water system Northwest Service Center. 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 San Antonio Water System a revised master water plat with the final report .

Mark L. McGinnis of EUWD began the survey on June 15, 1993, and the survey was concluded on July 2, 1993. Over the course of the survey, EUWD staff surveyed a total of 1,275 access points including 914 customer service connections, 81 fire hydrants, 255 main line valves, and 25 other access points covering 15.29 miles of distribution mains. Computer leak sound correlation was performed on one location.

EUWD technicians detected a total of 26 leaks. This total included 2 meter box leaks, 2 fire hydrant leaks, 6 service line leaks, 1 valve leak , and 15 customer side leaks. EUWD staff estimates 20,684 gallons of water per day have been saved by the repair of 26 detected leaks as of August 9, 1993. The leaks discovered during the survey range from 14,400 gallons per day to small meter box leaks.

EUWD staff was unable to locate 18 valves and 21 customer service connections. An additional 8 valve stacks need cleaning and/or repair. EUWD staff noted 1 water meter that was not registering accurately.

Water Use & Conservation

Leak Detection/Location Survey Report for the City of Converse, Bexar County, Texas, July 5, 1995-October 24, 1995

Author: Gapinski JE and Shipley JR (Edwards Underground Water District)

Description: Leak detection and location survey report for City of Converse, 1995 (published in 1996). Note: this function was taken over by the San Antonio Water System in 2006.

Report Number: 96-01

Location: Bexar County

Summary:

On May 12, 1995, the Edwards Underground Water District (EUWD) received a request from the City of Converse to perform a leak detection I location survey on its water distribution system. A pre-survey conference was held June 28, 1995, at the City of Converse Public Works Center to discuss the work to be performed. It was agreed that EUWD would perform sonic leak detection on all available access points and computerized leak location as needed. A final report, including any unusual system condition found and an updated master water plat would be submitted to the City at the conclusion of the survey.

John E. Gapinski of EUWD began the survey on July 5, 1995, and the survey was concluded on October 24, 1995. Over the course of the survey, EUWD surveyed a total of 4,758 access points including 3,455 customer service connections, 306 fire hydrants, 922 valves, and 75 other access points covering 46.27 miles of distribution main. Computer leak sound correlation was performed at 1 location by EUWD.

EUWD surveyors detected 47 utility side leaks and 39 customer side leaks for a total of 86 leaks. The utility side leaks included 9 service leaks, 30 meter box leaks, 2 main valve leaks, 1 main leak, and 5 fire hydrant leaks. EUWD estimates 29,581 gallons of water per day has been saved by the repair of 39 utility side leaks as of October 24, 1995. The leaks discovered during the survey range from 13,680 gallons per day to numerous small meter box leaks.

As part of the survey, EUWD located 118 valves of various types, 66 fire hydrants, and 11 ,400 feet of main not shown on the master water plats. EUWD surveyors were unable to locate 54 valves of various types and 1 fire hydrant shown on the master water plats. An additional 37 items were discovered to need some type of repair or adjustment.

Water Use & Conservation

Leak Detection/Location Survey Report for Lackland Air Force Base, Bexar County, Texas, February 27, 1995 August 8, 1995

Author: McGinnis ML and Shipley JR (Edwards Underground Water District)

Description: Leak detection and location survey report Lackland Air Force Base, 1995. Note: this function was taken over by the San Antonio Water System in 2006.

Report Number: 95-09

Location: Bexar County

Summary:

On June 6, 1994, the Edwards Underground Water DIstrict (EUWD) received a request from Lackland Air Force Base (LAFB) to perform a leak detection I location survey on the main base and annex water distribution systems. A pre-survey conference was held January 19, 1995 at the base to discuss the work to be performed. It was agreed that EUWD would perform sonic leak detection on all available access points and computerized leak location as needed. A final report, including any unusual system condition found and an updated master water plat would be submitted to LAFB at the conclusion of the survey. It was further agreed that LAFB would provide EUWD with one experienced utility service person and would repair all leaks detected in a timely manner.

Mark L. McGinnis of EUWD began the survey on February 27, 1995, and the survey was concluded on August 8, 1995. Over the course of the survey, EUWD surveyed a total of 2, 114 access points including 903 customer service connections, 441 fire hydrants, 720 valves, and 50 other access points covering 65.34 miles of distribution main.

Mr. McGinnis detected a total of 76 leaks. This total included 34 service valve leaks, 6 main line leaks, 20 fire hydrant leaks, 11 main valve leaks, and 5 customer side leaks. As of August 8, 1995, 14 of the 76 leaks detected over the length of the survey have been repaired.

EUWD estimates I I ,291 gallons of water per day has been saved by the repairs to date. The leaks discovered during the survey range from 7,200 gallons per day to numerous small service valve leaks.

As part of the survey, EUWD located 401 valves of various types, 15 fire hydrants, 24 service connections, and 2 back flow preventors not shown on the master water plats. EUWD surveyors were unable to locate I 7 I valves of various types, 36 yard hydrants, and 13 tire hydrants shown on the master water plats. An additional 5 items were discovered to need some type of repair or adjustment. EUWD was unable to properly survey areas on 28 plats due to various reasons.

Water Use & Conservation

Leak Detection Survey Report for the city of Lytle

Author: Edwards Underground Water District

Description: Leak detection and location survey report for City of Lytle, 1992. Note: this function was taken over by the San Antonio Water System in 2006.

Report Number: 92-04

Location: Medina County, Atascosa County, Bexar County

Summary:

On September 5, 1991, the City of Lytle submitted a request for the Edwards Underground Water District (EUWD) to perform a leak detection/location survey on its water distribution system. On November 25, 1991, a presurvey conference was held at the Lytle City Hall 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 all system deficiencies found, and submit to the City an updated master water plat with the final report.

The survey began December 2, 1991, and was concluded on January 31, 1992. Over the course of the survey, EUWD surveyed a tot a 1 of 1,274 access points, including 973 customer service connections, 94 fire hydrants, 197 main valves, and 10 blow-off valves covering 29.40 miles of distribution main.

EUWD detected a total of 31 leaks. This total included 1 valve leak, 2 meter box leaks, 5 fire hydrant leaks, 6 service line leaks, 1 main line leak, and 16 customer side leaks. EUWD estimates 9,128 gallons per day has been saved by the repair of 10 detected leaks as of January 31, 1992. The leaks repaired to date range from 7,200 gallons per day to 3 gallons per day.

As part of the survey, EUWD located 144 buried main line valves with a ferromagnetic detector. EUWD noted 56 water meters that were not registering accurately and an additional 58 meter boxes that need cleaning.

Water Use & Conservation

Leak Detection/Location Survey Report for the City of Marion: May 1, 1996-May 31, 1996

Author: JE Gapinski and JR Shipley (Edwards Aquifer Authority)

Description: Leak detection and location survey report for City of Marion, TX, May 1-31, 1996. Note: this function was taken over by the San Antonio Water System in 2006.

Location: City of Marion, TX

Summary:

On March 15, 1996, the Edwards Aquifer Authority (EAA), formerly the Edwards Underground Water District, received a request from the City of Marion to perform a leak detection I location survey on its water distribution system. A pre-survey conference was held April 4, 1996 at the City of Marion to discuss the work to be performed. It was agreed that EAA wou ld perform sonic leak detection on all available access points and computerized leak location as needed. A final report, including any unusual system condition found and an updated master water plat would be submitted to the City of Marion by EAA at the conclusion of the survey.

John E. Gapinski of EAA began the survey on May 1, 1996, and the survey was concluded on May 31, 1996. Over the course of the survey, a total of 817 access points were surveyed including 615 customer service connections, 34 fire hydrants, 158 valves, and 10 other access points covering 25.42 miles of distribution and transmission main.

Fourteen utility side leaks and eleven customer side leaks were detected for a total of 25 leaks. The utility side leaks included 4 service leaks, 7 meter box leaks, 1 fire hydrant leak, and 2 main leaks. An estimated 14,697 gallons of water per day has been saved by the repair of 14 utility side leaks as of June 15, 1996. The leaks discovered during the survey range from 3,960 gallons per day to small meter box leaks.

Water Use & Conservation

Leak Detection/Location Survey Report for the Fairco Water Company, Bexar County, Texas: December 13, 1995-March 8, 1996

Author: Gapinski JE and Shipley JR (Edwards Aquifer Authority)

Description: Leak detection and location survey report for Fairco Water Company, 1996. Note: this function was taken over by the San Antonio Water System in 2006.

Location: Bexar County

Summary:

On November 20, 1995, the Edwards Aquifer Authority (EAA) received a request fromthe Fairco Water Company to perform a leak detection I location survey on its waterdistribution system. A pre-survey conference was held November 15, 1995, at the FaircoWater Company Office to discuss the work to be performed. It was agreed that EAA would perform sonic leak detection on all available access points and computerized leak location as needed. A final report, including any unusual system condition found and an updated master water plat would be submitted to the Company at the conclusion of the survey.

John E. Gapinski of EAA began the survey on December 13, 1995. The survey was concluded on March 8, 1996. Over the course of the survey, EAA surveyed a total of 3,320 access points including 1,697 customer service connections, 973 service valves, 82 fire hydrants, 529 main valves, and 39 other access points covering 47.58 miles of distribution main.

EAA surveyors detected 20 utility side leaks and 12 customer side leaks for a total of 32 leaks. The utility side leaks included 10 service leaks, 4 meter box leaks, 4 main leak, and 2 fire hydrant leaks. EAA estimates 98, 148 gallons of water per day has been saved by the repair of 20 utility side leaks as of April 18, 1996. The leaks discovered during the survey range from 71,280 gallons per day to small meter box leaks.

As part of the survey, EAA located 1,010 valves of various types, 4 fire hydrants, and 2,750 feet of main not shown on the master water plats. EAA surveyors were unable to locate 147 valves of various types and 1 fire hydrant shown on the master water plats. An additional 13 items were discovered to need cleaning, repair, or replacement.