Document x589vbr3xmLMyyEOzGyGLn8kE

STATE OF CALIFORNIA--RESOURCES AGENCY SAN FRANCISCO BAY REGION REGIONAL WATER QUALITY CONTROL BOARD 364 FOURTEENTH STREET OAKLAND 94612 RONALD REAGAN, Govrnor March 7, 1969 In reply please refer to File No. 2119-1075 Monsanto Company 800 N. Lindbergh St. Louis, Missouri 63166 Attention Mr. Howard S. Burgen, Business Director Functional Fluids Organic Chemicals Division Subject: Polychlorinated biphenyls ("PCB's") Gentlemen: Confirming recent telephone discussions between your Mr. Burgen and Hobart C. Knapp of this office, we request the following information about your poly chlorinated biphenyls: "'i. Data from fish bioassays which you are now performing; please include 96-hour 11^ and the data pages recording laboratory observations. -^2. Existing data on toxicity, including long-term effects. / 3. 4. Maximum allowable concentrations in industrial work areas. Solubility in water. - - - 5. Industrial applications by specific Monsanto product item number, and physical nature of these items; please include: a. Dielectric fluids . b. Plasticizers for paints, plastics, elastomers, etc., and the uses of products containing "PCB", e.g. tire stocks, floor tile. Please inform about the diffusion or other escape of "PCB" from such products, both in normal use and in the environment of refuse dumps. c. Hydraulic fluid for aircraft, industrial equipment, etc. d. Heat transfer applications. e. Other. . .6 Current volume of sales of "PCB" in the San Francisco Bay Area and in California for each of the above applications and extent to which this is to replace spent "PCB". (We understand current inventory turnover at ; f your Santa Clara warehouse is around 40,000 lbs per month, but we have been able to account for only two bbl. per year in purchases.) Please name Bay Area users of "PCB" for these applications. DSW 383234 STLCOPCB4101082 % Monsanto Company 2 March 7, 1969 7. Monsanto's advice to its customers for handling "PCB" in normal use, and for its disposal when discarded, e.g., of filtration residues from processing dielectric fluids, discarding the fluids when they must be replaced in dielectric, hydraulic, or heat transfer service, disposal methods for emptied containers, spills, etc.. In view of the recent allegations in the technical press about the serious detrimental effects of "PCB" on fish and wildlife, we are most anxious to receive this information soon. Your cooperation in this matter will be appreciated. ' Sincerely, HCK,FHD/emj FRED H. DIERKER Executive Officer DSW 383235 STLCOPCB4101083