The site locations illustrated on our maps are based on information that Toxics Targeting obtains from local, state and federal government agencies as well as historic data sources. Please note: a) mapped locations are approximate; b) additional toxic sites exist, but are not mapped due to incomplete addresses; c) contamination problems can impact properties located considerable distances from toxic sources; d) some of the identified sites are large and can involve multiple parcels; e) other categories of toxic sites exist, but are not included in the map; f) identified sites include known as well as potential contamination threats; and g) the regulatory status of individual sites might have changed.