[미국] 캘리포니아, 파드레댐 고도정수처리에 1억1천600만 달러 지원

 

미국 캘리포니아주 샌티(Santee)시 파드레댐 상수도국(Padre Dam Municipal Water District)는 캘리포니아주 수자원관리국 음용수부로부터 동부지역 고도정수처리 프로그램(East County Advanced Water Purification Program)에 대해 승인을 받았다. 또한 주 수자원관리국은 ‘법안1(발의1)’ 수자원 재활용 기금조성 프로그램의 일환으로 파드레댐(Padre Dam)에 1억1620만 달러를 지원키로 했다 .
 

기존의 지하수 재충전 규정 및 지표수 증대에 대한 규정 초안을 준수하여 예닝스 호수(Lake Jennings) 및 샌티(Santee)시 지하수 유역을 환경 완충지로 사용할 수 있게 한다.  파드레댐은 또한 시범 프로젝트의 성공적인 수행을 기반으로 한 무료 염소소독 프로세스의 사용에 대한 개념적 승인을 받았다.

파드레댐은 동부지역 고도정수처리 시설(East County Advanced Water Purification Facility)의 1단계(Phase1)를 건설하기 위해 기초 기금을 사용할 계획이다.  발의안 제1호 자금은 1,500만 달러의 교부금 자금과 1억 2,000만 달러의 낮은 이자(1%) 대출 형태로 총 1억1,620만 달러로 구성된다. 

2014년 캘리포니아주 의회는 수질, 공급 및 인프라 개선 법안인 ‘발의안1’을 승인했다.  ‘발의안 제1호’에는 새크라멘토-샌호아킨 강 삼각주(Sacramento-San Joaquin Delta)에 대한 의존도를 줄이면서 지역 수자원 향상을 포함하여 주정부의 장기적인 물 수요를 충족시키는 데 도움이 되는 프로젝트에 대한 기금이 승인되었다.

2015년 파드레댐은 캘리포니아 주정부 규제 당국에 염소소독 능력을 입증하기 위해 고도 정수처리시설을 건설하여 시범적으로 운영해오고 있다. 

시범 시설은 무료 염소소독, 멤브레인 여과, 역삼투 및 자외선 살균(Ultra Violet) / 고도산화처리 등 4가지 고도정수단계를 거쳐 레이 스터여 간척시설(Ray Stoyer Water Reclamation Facility)의 재활용수를 처리하므로 깨끗한 수원을 만들 수 있다.  전체 규모의 프로젝트가 건설 될 때 정화수는 예닝스 호수(Lake Jennings)로 펌핑되거나 샌티(Santee)시 지하수 유역으로 주입되어 철수되고 식수로 분배되기 전에 다시 처리된다.

[원문보기]

Padre Dam receives conceptual approvals, $116.2M for water purification program

SANTEE, CA, MAY 9, 2017 -- Padre Dam Municipal Water District received regulatory conceptual approvals for the East County Advanced Water Purification Program from the California State Water Resources Control Board Division of Drinking Water. Additionally, the State Water Resources Control Board awarded Padre Dam $116.2 million as part of the Proposition 1 (Prop 1) Water Recycling Funding Program.

 

 

 

The conceptual approval will allow the program to use either Lake Jennings and/or and the Santee Groundwater Basin as an environmental buffer in compliance with existing groundwater recharge regulations and draft regulations on surface water augmentation. Padre Dam also received conceptual approval on the use of free chlorine disinfection process based on the successful performance of its demonstration project.

 

Padre Dam plans to use Prop 1 funds to construct Phase 1 of the East County Advanced Water Purification Facility. The Prop 1 funding consists of $15 million in the form of grant funding and $101.2 million in the form of a low interest (1%) loan for a total of $116.2 million. In 2014, California voters approved Prop 1, the Water Quality, Supply and Infrastructure Improvement Act. Prop 1 authorized funding for projects that help meet the long term water needs of the state including improving regional water self-reliance while reducing reliance on Sacramento-San Joaquin Delta.

 

"We are very excited about the regulatory approvals. These approvals are significant steps in making this important water purification program a reality," said Allen Carlisle, CEO and General Manager of Padre Dam. "East County will be creating a new, local, reliable and sustainable drinking water supply as soon as 2021."

 

In 2015, Padre Dam built and operated an Advanced Water Purification Demonstration Facility to demonstrate free chlorine capabilities to state regulators. The performance of the demonstration facility was overseen by an independent advisory panel; water quality samples were taken daily and sent to independent laboratories for testing, proving that the purified water created from recycled water meets and exceeds Federal and State drinking water standards.

 

The demonstration facility treats recycled water from the Ray Stoyer Water Reclamation Facility using four advanced water purification steps - free chlorine disinfection, membrane filtration, reverse osmosis and ultra violet/advanced oxidation, creating a water source so pure, it's near distilled in quality. When the full-scale project is built the purified water would either be pumped into Lake Jennings or injected into the Santee groundwater basin before it is withdrawn and treated again prior to distribution as drinking water.

 

"The Prop 1 grant money, combined with other grant funding the program has received, provide necessary funding to move ahead with building the East County Advanced Water Purification Program. This program will ultimately produce up to 30 percent of East County's drinking water and help reduce our reliance on imported water enhancing water reliability for all of East County," added Carlisle.

 

The East County Advanced Water Purification Program is a partnership between Padre Dam, Helix Water District, the County of San Diego and the City of El Cajon. Padre Dam is currently the lead agency and the partner agencies express support for the Program through memorandums of understanding and funding for the continued planning and studies for the Program. Visit www.eastcountyAWP.com for more information about the Advanced Water Purification Program and to tour the Advanced Water Purification Demonstration Facility.

 

[출처 = Water World(/www.waterworld.com) / 2017년 5월 9일]