History Timeline

SD1 began as a small wastewater treatment utility serving the river cities in Campbell and Kenton counties. Today, we also manage the region’s storm water and are the second-largest wastewater utility in Kentucky. We now serve about 30 Northern Kentucky cities within Boone, Campbell and Kenton counties.

View a printable version of SD1’s history timeline (PDF).

1946

The Kentucky Department of Health established SD1. Prior to this time, Northern Kentucky discharged wastewater directly into the Ohio River and its tributaries.

1954

SD1 completed construction of the Bromley Wastewater Treatment Plant, Northern Kentucky’s first wastewater treatment facility.

1979

SD1 constructed the Dry Creek Wastewater Treatment Plant, the largest and oldest wastewater facility currently operating in Northern Kentucky.

1995

SD1 took over ownership and maintenance responsibilities for the sanitary sewer systems in many Northern Kentucky cities.

2003

In response to new federal regulations, SD1 began a regional storm water management program.

2004

SD1 opened Public Service Park, an educational facility designed to educate the public on storm water problems and solutions.

2005

SD1 entered into a consent decree with the U.S. Environmental Protection Agency (EPA) and the Kentucky Environmental and Public Protection Cabinet.

2007

SD1 opened the Eastern Regional Water Reclamation Facility in southern Campbell County.

2009

SD1 began taking over ownership and maintenance responsibilities for the storm water infrastructure in many Northern Kentucky communities.

2012

SD1 opened the Western Regional Water Reclamation Facility in western Boone County.

2019

SD1 amended consent decree (PDF) with the U.S. EPA and the Kentucky Environmental and Public Protection Cabinet, extending deadline to January 1, 2040.