How will the site investigation be conducted?
A – Nicor Gas has retained Burns & McDonnell, an engineering firm experienced with gas manufacturing sites, to perform the environmental investigation, which consists of: • Clearing brush and trees less than 8 inch diameter, leaving all vegetation within 5 feet of the perimeter fences. • Using a magnetometer and ground-penetrating radar to look for potential buried drums. • Collecting several hundred soil samples with soil probes and soil borings. • Excavating 44 test pits in areas where old maps indicate structures may still exist below ground. • Collecting samples from four groundwater monitoring wells. • Shipping samples to an independent laboratory for chemical analysis. Work at the site is expected to take up to five months.
