L. J. Greco to G. L. Swallow on the Nashua Industrial Hygiene Survey (1974)

A one-page handwritten memo of June 17, 1974, from L. J. Greco of J-M's Environmental Control Department at Manville, New Jersey, to G. L. Swallow, on the industrial hygiene survey of the Nashua facilities done from May 6 to 14, 1974. Greco found housekeeping "in fair condition" and noted the respirators used in areas where they were required. "During the survey we had three personnel who would not wear a sampler," all on the sanding line; two were union stewards, and "This incident has occured for the last three years."

In Johns-Manville's chronology

Johns-Manville's own chronology of what the company knew describes this document as follows:

Letter from L. Greco to G. Swallow dated 6/17/74. Industrial Hygiene Survey of the Nashua facility conducted. Greco states housekeeping condition of the plant was fair. Notes that three workers would not wear respirators during the survey. "This incident has occurred for the last three years."

Editor's note: J-M's description says three workers would not wear respirators. The memo says they would not wear a sampler, the personal dust monitor used in the survey.