Act 2 Standard, as presented in today’s presentation (August 27th Public Information Session), is being applied for statewide, and site specific. The presentation and presenter also reinforced the fact that the most stringent requirement must apply. If PA state’s lead standard in soil is 1000 ppm, why is Evergreen proposing a site-specific standard of 2,240 ppm, which is clearly twice the quantity?

The Site Specific Standard (SSS) was calculated using the updated Adult Lead Model and exposure assumptions recommended by the USEPA and the PADEP. The previous calculations used by the PADEP for lead were outdated; therefore, the PADEP recently used the same updated Adult Lead model to develop an updated non-residential lead direct contact MSC that reflects the current state of the science for lead.  The new calculated proposed direct contact statewide health standard for lead is in line with the site-specific standard that was calculated in 2015 for the site.  If the PADEP changes their assumptions related to lead, such as permissible blood lead levels, Evergreen will update the SSS accordingly.