posted on November 24, 2010 17:34
A total of 19 soil borings were completed and 6 existing monitoring wells were sampled on the subject property by PM Environmental, Inc. (PM), with selected soil and groundwater samples submitted for laboratory analysis of VOCs, SVOCs, PCBs, ammonia, glycols, nitrate/nitrite, alcohol and selected metals.
The intended use of the subject site was for printing operations. The chemicals of Ammonia, Xylenes, and 1,2,4 TMB that were identified on the property at levels exceeding the MDEQ Part 201 GSI cleanup criteria are used in the printing operations. A BEA was completed that used a combination of 1) the characterization of the three primary greenbelt areas used as soil isolation zones and 2) engineering controls in the asphalt/concrete paved areas and inside the industrial building as a basis to distinguish potential new hazardous substance releases from existing contamination.
Engineering controls were used in the building and in the remaining outside asphalt/concrete paved portions of the property as a basis to distinguish potential new hazardous substance releases from existing contamination.
The concrete floor in the eastern portion of the building (approximately 19,500 square feet) where any significant hazardous substance usage occurred, was sealed with General Polymers 3741 NOVO-FLO solvent/acid resistant coating (Appendix I), which is resistant to the proposed use hazardous substances. The floor drains and the floor trenches in this eastern control area were filled in and sealed, or the trenches inspected for drains were plugged and then the drain/trenches sealed to prevent the potential for contamination from entering the subsurface soil or groundwater. The concrete floor in the other areas of the building and the outside asphalt/concrete paved areas of the property will comprise the remaining engineering control area portions of the site.
The BEA and Due Care plan were affirmed by the MDEQ.