Document npYnX88q46XevJKVeyB1z4zZm

FILE NAME: ZW^W^ DATE: DOC#: W^ DOCUMENT DESCRIPTION>ZZ,Z:ZD >Z/ZZ ... .. ,.TIONAL ClllTEA roR "' ...... A-.O u-,ou,rJUAL HEALTH tll [AST CCUTll4L l'ARK#AV CIMCIHPiATI. OHIO 45:0z 6 .. I.';\ DEPARTMENT OF HEALTH, EDUCATION, AND WELFARE PUBLIC HEALTH SERVICE J .~--~- ~. /' 1 fl,~~ REFER TO: December 7, 1967 Rf.STRICTED L'JFORMA TION !'..i. : :- - . I. Johns-Manville Company 22 East 40th Street New York, New York 10016 r, - . Gentlemen: I .I,' 'r... -..; We have had an inquiry from a local health officer about the carcinogenic effect of asbestos from A-C pipe in ..~. drinking water. 'I ..- We will decide about the effects of ingested asbestos, I,,. .. { but would like to know if you have any data about t_he ' ' 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 ape- riod in one locality w~ere 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 as~:ed about. I will appreciate your comments on this problem~- I I . !.:., .. Leland J. McCabe ~ .- . Chief, Disease Studies f.; , Water Supply and Sea Resources Pr.ogram .I, : ; RESTRICTED INFORMATION "r..... 1., ; . PRODUCED JM 83