처리되지 못한 하수 폐기물이 더운 날씨에 오타와 강으로 유입된다는 민원을 해결하기 위해 오하이오주 리마시가 공식적으로 환경보호국(EPA), 미 법무부, 오하이오주와 함께 수질보호법(CWA) 합의에 들어갔다.

지난 20일 오하이오 북부의 지방법원에 넘겨진 합의 명령은 하수 역류를 통제하고 위생 하수 시스템으로부터의 역류 현상을 없애기 위해 리마시가 주요한 구조적 향상을 하도록 요구했다.

또한, 이 명령문은 리마시가 기존의 하루 대비 3천만 갤런에서 7천만 갤런까지 하수처리용량을 두 배 이상 늘리도록 요구한다.

 

 

 

To resolve claims that untreated sewer discharges were released into the Ottawa River during wet weather, the city of Lima, Ohio, has officially entered into a Clean Water Act (CWA) settlement with the Environmental Protection Agency (EPA), U.S. Department of Justice and State of Ohio.

 

The proposed consent decree, lodged in U.S. District Court for the Northern District of Ohio on Thursday, Nov. 20, requires Lima to make major structural improvements to control combined sewer overflows (CSOs) and to eliminate overflows from the sanitary sewer system.

 

The decree requires the city to more than double wastewater treatment capacity -- from 30 million gallons per (MGD) day to 70 MGD. It will reduce sewer overflows by fully or partially separating stormwater and sewer lines, constructing a new 13-million gallon storage tank and installing a pump system.

 

These actions are expected to significantly reduce Lima's CSOs over the next 10 years, while sanitary sewer overflows (SSOs) will be eliminated in stages throughout the life of the consent decree. These and other improvements will cost an estimated $147 million. The city will also pay a civil penalty of $49,000, to be split evenly between the U.S. and State of Ohio.

 

 In addition, the city agreed to remove and replace dead or compromised trees along the banks of the Ottawa River. This estimated $218,000 revitalization project is expected to improve water quality and benefit the aquatic ecosystem in the river.

 

[출처 = Water World / 2014년 11월 21일]