Corps to sample and analyze groundwater at SLDA

Published July 12, 2019

PITTSBURGH - The U.S. Army Corps of Engineers Pittsburgh District will be performing annual groundwater sampling at the Shallow Land Disposal Area (SLDA) site beginning Monday, July 22. The sampling should take approximately five days.

For more information about the site, visit the SLDA website at:

Documents related to the site are available online and at the Apollo Library, 219 North Pennsylvania Ave., Apollo, PA 15613-1397.

BACKGROUND: SLDA, encompassing 44 acres of privately owned land, is located approximately 23 miles east-northeast of Pittsburgh in Armstrong County, Pennsylvania. The site is on the right (south) bank of the Kiski River, a tributary of the Allegheny River, near the communities of Apollo and Vandergrift. Radioactive waste disposal operations were conducted between 1961 and 1970.                      

Pittsburgh District’s 26,000 square miles include portions of western Pennsylvania, northern West Virginia, eastern Ohio, western Maryland and southwestern New York. Our jurisdiction includes more than 328 miles of navigable waterways, 23 navigation locks and dams, 16 multi-purpose flood-control reservoirs, 42 local flood-protection projects and other projects to protect and enhance the nation’s water resources, infrastructure and environment.

For media inquiries, contact the Public Affairs Office at 412-395-7500 or email:


Carol Vernon, Public Affairs Chief
1000 Liberty Avenue, 22nd Floor

Release no. 19-013