텍사스의 샌안토니오 워터시스템(SAWS, San Antonio Water System)의 지하수 대수층 저장·충전 프로젝트(ASR, Aquifer Storage and Recovery)는 최고의 저장 단계에 이르러 향후 사용할 수 있는 물의 양이 10만 에이커피트(약 3천300만 갤런)를 능가했다고 밝혔다. 이는 333알라모듐(Alamodomes)의 양을 충족시키며 SAWS의 2014년 음용수 분포도는 약 21만2천 에이커 피트로 전체의 거의 절반에 해당되는 양이다.

 

SAWS의 이번 프로젝트는 지하에 물이 충분한 동안 텍사스에서 여름동안 분배 시스템에 의해 전환되는 물을 저장하기 위해 대규모의 지하수 저수지 등을 개발한다. 지하수 저장 방식을 활용하면 이전의 농업 방식을 현장에서 계속할 수 있다.

 

 

 

SAWS Aquifer Storage and Recovery (ASR) reached its highest storage milestone ever this week, surpassing 100,000 acre-feet (about 33 billion gallons) of water available for future use.

 

For reference, this amount would fill 333 Alamodomes, and represents almost half of the SAWS total potable water distributed in 2014 -- 212,851 acre-feet.
 
SAWS ASR is a large underground reservoir developed to store water during wet, or low-use times, and to be returned into the distribution system during our hot Texas summers.

 

By using an underground storage approach, it also allows for land directly above the site to continue its prior agricultural use.

 

“While this facility is rarely in the limelight - which is not surprising because it’s below ground and out of sight - this milestone truly is a reason to celebrate,” said Donovan Burton, SAWS vice president of Water Resources & Governmental Relations. “This stored water is the reason we’ve been able to stay out of deeper drought restrictions during recent years.”

 

The Twin Oaks Aquifer Storage and Recovery facility is a key component of the SAWS 50-Year Water Supply Plan. SAWS began injecting water into the ASR in June 2004. It was the first major project funded by SAWS customers through the Water Supply Fee. The facility is located on 3,200 acres in south Bexar County owned by SAWS.

 

“ASR has far exceeded our expectations,” continued Burton. “This water source is the model for the rest of the state and is the cornerstone of the regional solution for the Edwards Aquifer Habitat Conservation Plan.”

 

[출처 = Water World / 2016년 4월 4일]