Document LmDj61bdQeJVbqqNx1x5X2X5

Trade Organizations API/HSRC - Miscellaneous/ Correspondence - Hobart 6. Hob" Abbott Ph D. Director. Surfic* Water Program* Environmental Consarvation May 27, 1988 Cconc -p) Conoco Inc. Mariand Building PO Bo* 2197 Houston. TX 77252 17131293-3678 Mrs. Stephanie Meadows Anerican Petroleum Institute 1220 L. Street, N.W. Washington, D.C. 20005 Subject: Prioritization of Cotpounds for Critical Health Effects Review As per your request dated May 2, 1988, the following cxrpounds are presented in ranked order. 1. Benzene 2. Ethylbenzene 3. Toluene 4. Xylene 5. Lead/Tetra Ethyl Lead 6. Chromium 7. Phenol 8. Ethylene dibremide/Ethylene dichloride 9. Polynuclear Araratic Hydrocarbons (PAH's) 10. Nickel These rankings are based an the carpounds* presence in products produced by the oil industry and their potential for problems associated with effluent water, ground water and solid wastes. Please give me a call at the letterhead address should you have any questions. cc: Bill Broddle Rotot E. "Rob" Abbott. Ph D. Director. Surfice Wr Progrms Environmental Conservation May 11, 1988 Vi Conoco Ine. Marland Building PO. Box 2197 Houston. TX 77252 <7131 293-3678 Ms. Stephanie Ralph American Petroleum Institute 1220 L. Street, N.W. Washington, D.C. 20005 Subject: Prioritization of Cccpounds for Critical Health Effects Review As per your request dated May 2, 1988, the following compounds are presented in ranked order. 1. Benzene 2. Ethylbenzene 3. Toluene 4. Xylene 5. Lead/Tetra Ethyl lead 6. Chromium 7. Phenol 8. Ethylene dibrcmide/Ethylene dichloride 9. Folynuclear Aromatic Hydrocarbons (PAH's) 10. Nickel These rankings are based on the oaipounds1 presence in products produced by the oil industry and their potential for problems associated with effluent water, ground water and solid wastes. Please give me a call at the letterhead address should you have any questions. -Sincerely. cc: Bill Broddle %