Laserfiche WebLink
ARCADIS Mr. McKinley Lewis, Jr. <br /> April 20, 2011 <br /> OCPs were not detected above the regulatory limits in comparison with the CHHSLs, <br /> Residential Screening Levels (RSLs), and Environmental Screening Levels (ESLs) <br /> for the 16 samples analyzed; however, detection limits were elevated in some of the <br /> samples. <br /> No VOCs, organophosphate pesticides, or herbicides were detected above <br /> established regulatory limits in comparison of CHHSLs, RSLs, and ESLs and/or <br /> laboratory detection limits in the soil samples analyzed at the Site. <br /> PCBs were detected in two of the 14 samples analyzed above the CHHSL of 89 <br /> micrograms per kilogram (pg/kg). Soil sample B-6-05 indicated PCB Arochlor 1248, <br /> 1254, and 1260 at concentrations ranging from 210 to 470 pg/kg; however, the soil <br /> sample collected and analyzed from 2.0 feet in B-6 did not contain PCBs above the <br /> laboratory detection limits. Arochlor 1260 was detected in B-20-0.5 at 200 pg/kg. <br /> PCB concentrations detected at the Site appear localized and defined to two <br /> locations at the Site based on the analytical results as depicted on Figure 1. <br /> Cadmium was detected above the CHHSL in six of the 49 samples analyzed. Based <br /> on the analytical sampling and results, cadmium detected at the Site above the <br /> CHHSL is shallow and defined in discrete areas. <br /> SVOCs were not detected above the laboratory detection limits or regulatory limits in <br /> comparison with CHHSLs, RSLs, and ESLs criteria except for beno(a)pyrene. A <br /> concentration of benzo(a)pyrene of 57 pg/kg was detected in soil sample B-11-0.5. <br /> Concentrations of benzo(a)pyrene were not detected in the deeper soil sample <br /> collected at 2.0 feet bgs in B-11. <br /> TPH as motor oil and diesel was detected above the ESLs in soil boring B-6-0.5 at <br /> 1,500 and 8,300 mg/kg, respectively. TPH concentrations in the deeper sample <br /> collected from soil boring B-6-2.0 at 2 feet bgs were below the laboratory detection <br /> limit. <br /> Scope of Work <br /> The scope of work for this Addendum is proposed as follows:further delineate <br /> specified areas of concern identified during the PEA site evaluation; evaluate shallow <br /> soil in an area formerly occupied by a pallet of lead-acid car batteries; sample an idle <br /> domestic water well that was identified at the Site; repair the fence,- and conduct <br /> weed abatement. <br /> Page: <br /> Final PEA Work Plan Addendum-Aprt t-RV009808.doc 5/11 <br />