Document 10yGp6oQBjL5Ln0yx0e6n5LKX

FILE NAME: Asbestos Cement Pipe and Sheet (ACPS) DATE: 1967 Dec 7 DOC#: ACPS042 DOCUMENT DESCRIPTION: Letter from Dept of Health to Johns Manville DEPARTMENT OF HEALTH. EDUCATION. AND WELFARE PUBLIC HEALTH SERVICE Zo N AL C EN TF R FO R 0 IN O L iT R I AL H A L TH 222 E A S T C E N ' R A L P A R K # A Y C I N C I N N A T I 3 m O **;C 0 2 REFER TO December 7, 1967 Johns-Manville Company 22 East 40th Street New York, New York 10016 Gentlemen: We have had an inquiry from a local health officer about the carcinogenic effect of asbestos from A-C pipe in drinking water. We will decide about the effects of ingested asbestos, but would like to know if you have any data about the amount of asbestos that might occur in drinking water. How much is introduced during pipe repairs and tapping? Does solution of the calcium out of the cement into the water release asbestos fiber? Do you know anything about a report "-that near Memphis, Tennessee, there was a pe riod in one locality where the pH in the water was 10 or 11 and this resulted in a solution in the cement compon ent of the pipes to such an extent that the water became milky-" that we have been asked about. I will appreciate your comments on this problem. Leland J. McCabe Chief, Disease Studies Water Supply and Sea Resources Program PRODUCEP JII-83