Common use of Laboratory Analyses Clause in Contracts

Laboratory Analyses. All soil samples for contaminant analysis were refrigerated by means of an ice chest and transported to the McLaren Environmental Analytical Laboratory within 24 hours. The surface soils were analyzed for metal content (17 CAM/TTLC metals), semi-volatile compounds (EPA Method 8270). and chlorinated pesticides (EPA Method 8080). The subsurface samples were analyzed for metal content (17 CAM/TTLC metals), volatile organic compounds (EPA Method 8240), and semi-volatile compounds (EPA Method 8270). The analysis for volatile organics was not performed on the surface samples since it is unlikely that highly volatile compounds would be detectable in the surface soils. Tables 7, 8, and 9 contain summaries of the analytic results for the surface soils; Tables 9, 10, 11, and 12 contain summaries of the analytic 122 TABLE 7 METALS DETECTED IN 20 COMPOSITED SURFACE SOIL SAMPLES COLLECTED 6/29/89 THROUGH 7/5/89 (17 CAM/TTLC METHOD) METAL* CONCENTRATIONS (ppm)