chemical sales co.

4661 MONACO ST.

The Chemical Sales Co. site covers about five square miles in the northeast Denver metropolitan area, mostly in Adams County with a small portion in Denver County. Chemical Sales Co. was a wholesale distributor of commercial/industrial chemicals, detergents and water leisure products. The site was first developed in 1962 with the construction of a warehouse. Operations onsite included the storage and repackaging of bulk chemicals from rail cars and drums. In 1981, a random sample of municipal drinking water identified groundwater in South Adams County Water Supply District (SACWSD) as contaminated with volatile organic compounds (VOCs). Groundwater studies by EPA led to the discovery of the Chemical Sales Co. site as the main source of VOC contamination in the area. The identified plume of groundwater contamination extends from north of Sand Creek to Quebec Street on the east, Holly Street on the west, and East 86th Avenue on the north.