How does DEQ decide to add a site to ECSI?
A site is added to ECSI when DEQ learns that it is contaminated or potentially contaminated with hazardous substances such as solvents, metals, PCBs, or petroleum hydrocarbons. Such site information comes from a number of sources: investigative efforts by DEQs Site Assessment Program; referrals from other DEQ programs or from other agencies; reports of chemical spills; citizen reports/complaints; or data submitted voluntarily by site owners/operators. Because ECSI includes potentially contaminated sites as well as sites known to be contaminated, appearance on the ECSI database does not necessarily mean that a site is contaminated.
