Two major Clean Water Act settlements recently announced by Baltimore County and the Washington Suburban Sanitary Commission are anticipated to lead to more than $1 billion in sewer system improvements.

Baltimore County has committed to implement comprehensive investigation, rehabilitation, and maintenance measures throughout its sanitary sewer system that are expected to result in more than $800 million in improvements over the next 14½ years.

Baltimore County operates a sanitary sewage collection system that uses more than 3000 miles of sewer lines and 110 pumping stations to transport sewage to wastewater treatment plants operated by the city of Baltimore. The United States and Maryland allege that the county has violated the federal Clean Water Act and equivalent Maryland laws by allowing the repeated overflows of tens of millions of gallons of raw sewage from its collection system into area waterways since at least 1997. For more information, visit