December 20, 1371 Miss Marjorie W.

INTERNATIONAL LEAD ZINC- RESEARCH ORGANIZATION, INC. 332 MADISON AVENUE, MEW YORK.

ONONDAGA COUNTY HEALT H DEPART MENT 300 South eddes Street, P.

MEMORANDUM TO: FROM: DATE: SUBJECT: Robert A.

August 21th 1979 Dr Robert A.

K. fehlegel, SUP.

t he medica l LETTER.

Marvin D.

/ HAZLETON LABORATORIES AMERICA, INC. 9 2 0 0 Leesburg Turnpike Vienna.

June 3, 1975 Room 21 Box #22 - Original analytical records Box #25 - Original analytical records Box #26 - Original analytical records m m -Box #23 - Original analytical records of and Daily record books on following subjects: 1 - 6 - 59 to 9--18--61 9- 19--61 to 6 --24--62 4--2 1 --50 to 2 -- 3--54 2 -- 4--54 to 2 --25--56 2 --26--56 to 3--1 1 --58 3--1 2 --58 to 7 -26--58 2 --23--47 to 4--13--49 2 --1 2 --53 to 1 2 - 6 --54 1 --1 0 --55 to 1 1 -30--56 1 2 -- 1 --56 to 6 -15--58 2 --2 0 --53 to 4 -26--53 4--27--53 to 7 -31--53 9--30--63 to 1 0 -17--63 6 -- 6 --51 to 4--16--53 4--17--53 to 6 -2 0 --56 6 --2 1 --56 to 7-17--58 7--18--58 to 4- 5--59 3-- 7--60 to 1 - 3--63 1 -- 4 .-63 to 1 0 -17--63 6 -- 4 .-51 to 8 -19--51 1 1 -- 6 --67 to 1 2 -13--68 3--19--63 to 9-1 2 --65 9--13--65 to 6 - 8 --66 3--19--53 to 7-31--53 3-- 5--66 to 8 -18--67 3--19--63 to 9-J5rr63 1 0 --2 2 --63 to 1 1 -29--65 1 1 --30--65 to 3-23--67 3--24--67 to 6 -16--6 8 1 0 --17--60 to 1 0 -2 0 --62 1 - 63 to 1 0 63 5--2 0 --57 to 1 2 -16--58 1 2 --17--58 to 5-2 1 --61 0005644 N7388 , - Box of graphs - taken from De.

ETHYL CORPORATION Ho u s t o n P l a n t March 2 9 , 1973 PLEASE ADDRESS REPLY TO: BOX 472 PASADENA, TEXAS 7750!

SECOND MEDICAL DIVISION Robertk.Nixon,M.D.

July 7, 1974 Dear Dr.

August 23, 1977 Mr.

February 25, 1971 G.