Metropolitan St. Louis Sewer District Combined Area I/I Study
RJN Group, Inc is conducting field investigations through the MSD service area. This study will involve the opening and entering of manholes and cleanouts in the streets and easements.

White Clay Sewer Basin Rehabilitation Program
RJN Group, Inc. (RJN) is performing field investigative services for the New Castle County, Department of Special Services to identify defects in several basins with excessive infiltration and inflow within the White Clay Creek Sewer Basin.