Document g2R7bLEoD3p7r1rLQ3ZQ3JzRG

cc: K. W. / D. G. C. D. Dastur/P. F. C&P, Wilmington S. Hillman D. McLain A. Ganley E. Swanson Brown Composite sampling of the Ti02 landfill was performed following clean-out of the south settling pond and included material from this year's north pond dredgings also. Based on the analysis results, the landfill area should continue to remain unimpacted by EPA and California State Department of Health Pvegulations. JFB:np Attachment N36685 DUP0502 98601 1980 SETTLING POND DREDGINGS SAMPLED 10/29/80 RCRA **' EP" Leachate Test Results Lead - .01 mg/1 vs. EPA maximum of 5 mg/1 Chromium VI - .005 mg/1 vs. EPA maximum of 5 mg/1 (Chromium total - .01 mg/1 [no standard]) Absolute Concentrations Moisture - 61% Lead* - 33 ppm-wet basis, 84 ppm dry basis Chromium** - 92 ppm wet basis, 235 ppm dry basis *Proposed SOC TLV of 50 ppm wet basis. **Proposed SOC TLV of 760 ppm wet basis, Cr III. JFB:np 1/14/81 N36685.01 DU P0502 98602