Atmospheric corrosion work at a natural gas facility in Hardy County, West Virginia required enlarging several existing openings in the basement walls of the compressor building to allow personnel better access to the gas bearing piping running through the walls. Historic sampling indicated that the paint on the pipes and the concrete and the paint on the walls had the potential to be impacted by PCBs.
Paint and Concrete Sampling
At the request of the client, AGES collected paint samples from piping and paint and concrete samples from each of the proposed work areas on the compressor basement walls. Analytical results indicated that the paint on the pipes and the paint and concrete in the walls were impacted by PCBs.
Paint Removal and Through-Wall Enlargement
A 40-hour HAZWOPER-trained crew used media-blasting methods to remove all paint from the work areas of the walls and to enlarge the openings around the designated piping. Media-blasting methods were also used to remove all paint from the gas-bearing piping until the NACE 2 standard was achieved.