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Caliper Core washer wastes frori all other water/sludge wastes <br />QBR-4: <br />Nonhazardous for metals or asbestos <br />QBR-5. <br />Nonhazardous for metals, Haza dous for Asbestos <br />QBR-6: <br />Nonhazardous for metals, Hazaidous for Asbestos <br />QBR-7: Hazardous for Cr only <br />08R-8. Hazardous for heavy metals, No ihazardous for asbestos. <br />Storrnwater Results: Sampled 2/03/00: Loci4ion-Main drain in parkino lot <br />Cd <br />30 ppb <br />(16 ppb) <br />COD <br />130 ppm <br />(120 ppm) <br />EC <br />150 umho/cm <br />N/A <br />Cu <br />200 ppb <br />64 ppb <br />Pb <br />60 ppb <br />82 ppb <br />NI <br />ND <br />pH <br />65 <br />TSS <br />460 ppm <br />100 ppm <br />Zn <br />1400 ppb <br />65 ppm <br />TOG <br />6.2 ppm <br />15 ppm <br />Summary: <br />Cd, Cu, Zn, COD and TSS above <br />benchmarks. Source of TSS and metals is suspected to be off employee parking area <br />which discharges directly the main drop inlet. <br />By controlling suspended solids it is anticipated that metals and COD will be well <br />below benchmarks. <br />Call if you hake questions. I will be preparing a formal report to be included in your Annual Report and HazMat Database. <br />Maureen <br />Tuesday, March 14, 2000 Amenca Online: ECM62 Page: 2 <br />GL_1�IS-0G9TC. SW -_13 wH OS:OT 00-9T—;AJ" <br />