The agreement will require Teck to perform a removal action at four upland residential properties. Teck is a non-liable party for these four properties as a result of a recent 9th circuit opinion. Teck remains a liable party for the areas of the Site that have been contaminated by discharges not caused by air emissions. This agreement is entered into under the rendering care provision of CERCLA instead of Sections 107(a) and 122 of CERCLA as a result of Teck's non-liable status for these properties within the Site.