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/ S t o 0 : i & Gm visssre;*o & G's l i s q s o t j l WBSSES&SftO 225 BUSH STREET * SAN FRANCISCO 20 CALIFORNIA MANUFACTURING DEPARTMENT N.

November 20, 19^2.

June 4, 1962 George F.

Hr# John Soft B.

September 5, 1968 Mr.

MEMORANDUM CONCERNING TBS DETECTION AND MEASUREMENT FROM DEAD-CONTAINING EFFLUENT FROM INDUSTRIAL OPERATIONS In our experience, the discharge of lead-containing wastes from the stacks or vents of industry has created greater hazard through the contamination of vegetation in the vicinity of the operations than through the exposure of persons in the affected neighborhood to air-borne lead compounds.

Los Angeles, Calif July 1, 1954 AIR MAIL Carl M.

\ ETHYL CORPORATION loo PARK AVENUE NEWYORK17, N.

COPY LEAD E3OTSTRIES ASSOCIATION 60 East h2nd Street How York 2?

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Material: Source: Submitted: Required: Scale and Sludge Tank cleaned by Tank Cleaners Inc., Jacksonville, Fla., at Carolina Terminal, Wilmington, N.C. 7 -6 - 4 8 by F.T.

F O R M 191 W.

November 6, 1940 Mr .

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