[미국] 수십억 갤런의 폭우 절약 위한 로스앤젤레스 터헝가 프로젝트

오십억 갤런 이상의 물은 동북 산 페르난도(San Fernando) 밸리에 현재 건설 중인 새로운 폭우 억류시설(capture facility)에 매년 저장될 것이다.

에릭 가세티(Eric Garcetti) 시장, 누리 마티네즈(Nury Martinez) 의원, 로스앤젤레스 수도전력부(Los Angeles Department of Water and Power, LADWP), 로스앤젤레스 카운티 공공사업부는 지역 사용을 위해 폭우를 저장하는 능력을 두 배 향상할 수 있도록 기존 시설에 290만 달러를 들여 확장하는 터헝가 확산 공간 향상 프로젝트(the Tujunga Spreading Grounds Enhancement Project)에 오늘 착공을 시작했다.

시장 가세티(Garcetti)는 "우리 지역의 물 공급을 확대해야 했고, 그것은 폭우 확보에 대한 투자를 의미한다"며 "터헝가 확산 공간 향상 프로젝트는 이 시설에서 우리가 포획한 수량의 두 배를 확보할 수 있게 해준다"고 말했다. 이어 그는 "이 역사적인 가뭄에 LA의 미래를 지키기 위한 중요한 단계이다. 귀중한 자원을 보존 및 확보할 수 있도록 우리와 협력해준 카운티 파트너들에게도 감사하다"고 밝혔다.

[원문보기]

LOS ANGELES' TUJUNGA SPREADING GROUNDS ENHANCEMENT PROJECT TO CONSERVE BILLIONS OF GALLONS OF STORMWATER

More than five billion gallons of water will be saved each year at a new stormwater capture facility now under construction in the northeast San Fernando Valley.

Mayor Eric Garcetti, Councilmember Nury Martinez, the Los Angeles Department of Water and Power (LADWP), and the Los Angeles County Department of Public Works today broke ground on the Tujunga Spreading Grounds Enhancement Project -- a $29 million expansion of an existing facility that will double its capacity to capture stormwater for local use.

"We have to expand our local water supply, and that means investing in stormwater capture," said Mayor Garcetti. "The Tujunga Spreading Grounds Enhancement Project will double the amount of water we capture at this facility -- an important step toward securing L.A.’s future in this historic drought. I’m grateful to our County partners for working with us to conserve and capture a precious resource."

Currently, the Tujunga Spreading Grounds can capture and store about 8,000 acre-feet, or 2.5 billion gallons of water a year. Once the enhancement is complete in 2018, that capacity will expand to 16,000 acre-feet, or 5 billion gallons -- enough water to supply 48,000 Los Angeles households every year. In addition to conserving water, the enhancement will provide new open space and a walking path for neighborhood residents.

"While we're building an environmentally sound improvement for our city, we're also beautifying the neighborhood nearby," Councilmember Martinez said. "I'm especially proud that LADWP worked with the community to mitigate construction impacts on neighborhood residents by implementing a conveyor belt system to transport dirt off site, thereby taking trucks off our neighborhood streets and limiting traffic congestion."

The enhancement is part of LADWP’s Stormwater Capture Master Plan, which aims to expand Los Angeles’ local water supply and reduce the city’s reliance on imported water. It also advances several of the objectives outlined in Mayor Garcetti’s Sustainable City pLAn, including the goal of increasing local stormwater capture to 150,000 acre-feet per year by 2035.

"In the past, most stormwater was allowed to run off to the Pacific Ocean. Those days are over,” said LADWP General Manager David Wright. “With the Tujunga Spreading Grounds Enhancement Project, we ensure that these valuable water resources don’t go to waste. By doubling this site’s capacity L.A.’s greatest local water asset, the San Fernando Groundwater Basin, remains replenished with Los Angeles water for Angelenos to drink.”

LADWP plans to continue implementing stormwater capture projects that reduce the amount of runoff lost to the ocean and make more local water available to Angelenos. These projects include large-scale spreading grounds enhancements like the Tujunga enhancement, as well as smaller projects like green streets, rain gardens, and rain barrels. 

The Tujunga project is designed and managed by LA County Public Works. The department operates 14 major dams and 26 spreading grounds on behalf of the LA County Flood Control District, including the Tujunga Spreading Grounds facility.

"Capturing stormwater to recharge local groundwater supplies has always been part of the Flood Control District's mission,” said Gail Farber, director of LA County Public Works.  “But the severity of the current drought and the challenges of climate change, population growth and an unreliable imported water supply require the combined attention and effort of the entire region. The City of Los Angeles has been a fantastic partner in this regard."

[출처 = Water World/ 2016년 8월 22일]