Document nk1kL04z8xpXNMR0vvOdpqYga

FILE NAME: WR Grace (WRG) DATE: April 2, 1964 DOC#: WRG279 DOCUMENT DESCRIPTION: 1964 Letter to Mr. Kelley from C.A. Pratt regarding vermiculite dust health hazard. C A. PA ATT C **OiOCMT C //i'.r^rn Mineral (yiz^ * - Products Company \~ y y April 2, 1964 * . >LSON r i ( ! M W * Y . M I N N E A P O L I S 22. M I N N E S O T A Y L IB E R T Y S-04| Mr. J. A. KeTTSy^^General Zonolite Division W. B. Grace Conpany 133 South LaSalle Street Chicago 3 Illinois Manager Dear Joe: Rex v erniculite dust health hazard You rill find enclosed a copy y a .stter from Dr. W. E. Park from our Minneapolis Division of Pul lie Health. You rill recall he has corresponded with us previously regarding the hazard of verniculite dust. He would now like additional ir-iomation from Zonolite as to work that may have progressed since i Lovick's letter of June 14, 1961 You will recall our clearing this subject with you previous to giving Mr. Lovick's letter rc Dr. Park. The death Dr. Park refers to id Dev.r.is Cleary, who wa9 an employee of B. F. Nelson Company, and who ha- been awarded a complete disability claim by Workmans Conuer.ii ;.:.or. based upon his lung condition. , It's my understanding that the ioc-.or treating one of our employees h__ employ for health reasons; so you much verniculite dust continues tc 1 relating to employees who have ror.ee:. time and previous to the considerable proper control. that treated Mr. Cleary is now instructed him to leave our this subject of inhaling too serious matter, particularly .'or us for a long period of effort to bring dust under I am sending Ed Lovick a oopy 0. Dr. P.'irk's letter. This obviously requires & response. Will you see .hat we do receive an answer that can be forwarded to Dr. Park. Yours very truly, <' ' - C. A. Pratt CAP 1nr . Eno. CCt Mr. Ed Loviok PLANTS IN M IN N E A P O L I S O M A A MILWAUKEE DENVER Mr. C. A. Pratt Page Two April 9 196* Ue feel we have made progress on the-33st problem locally* both In our milling operation which affects our people, and In the concentrates which are shipped out. We have a dedusting unit at our loading station which operates when our material Is being loaded. A combination of there being fewer fines in our concentrates because of milting changes and removal of dust when the product is shipped, which formerly went into the car, should result In a cleaner product to our customers. Very truly yours ZONOLITE DIVISION W. R. GRACE t CO. 8y: E. 0. lovlck EOL/Jbg c.c. J. A. Kelley