Reports outlining the methods and particulars of how Air Quality is monitored during the cleanup of the Blue Star Recycling Facility in South Dallas.

PM2.55 – The Project Goal is set at the 24-hour standard of 35 ug/m3 set by the EPA within the National Ambient Air Quality Standards (NAAQS). • PM10– The Project Goal is set at the 24-hour standard of 150 ug/m3 set by the EPA within the National Ambient Air Quality Standards (NAAQS). • tVOCs – As a mixture of individual VOCs there is not set federal or state criteria for tVOCs. However, for this project, the tVOC criteria of 1.0 ppmv set by the EPA, TCEQ and related regulatory agencies within the Real-time Air Community Monitor Plan (RACMP) is set as our Project Goal. • All PM results are presented in micrograms per cubic meter (ug/m3) • All tVOC results are presented in parts per million by volume (ppmv) • The daily average wind direction was utilized to show the average daily position of each monitor relative to the Site. For example, downwind positions would be expected to see

This Phase I Report was created for the City of Dallas, TX by Modern Geosciences regarding the cleanup of the Blue Star recycling facility.