Document RagvJ8yD8da2npB1V5gdBzenV

0 F. P A R.T M B N T OP HKAi.TII, FDt'CATl O N . A N D WMF A K - PUBLIC HEALTH SERVICE rn*vv foh T i >%*' Ceatt' * ; ^n.trit P**,ae,av < - v *> W. Cl!# oseph E. Flanagan, Jr, Septeaber 5, 1957 Hr. John 9. Kasao Director of Researdi Stool Structures Fainting-Council U*00 Fifth Aveas? . .. Pittsburgh 13, Fa* Dear Mr. Kent) . Bafsrenoe is sade to jw? Inquiry of July 30, 1957, regarding the use of red lead palate oa interior surfaooa of potable eater tanks* lie foal that red lead is undo* sirabla fur suolt use beosuse of the possible increase in the lead oeatent of the eater. Aa extensive study (still eas Bade by Mr. Prase:r and Dr. Fairhall of the Pttbliu Bealtb Service several years age. They studied three type# of lead paints; an oil base* s phenolic resin base, and a vixylresin base, j Stay also, aasyled eater twm a aesher of teaks ahich had | been painted with lead paints. Tbs oil base feints give rise to naeb higher load esaeeBtretlaa* in the eater than the other tee types of point* Obviously, s assaher of variables such as the nature of the eater, the storage tins la the tank, and the ratio of painted earffese he eater vdass' ell lafleease the degree to which seeh palate eUl laureate the lead concen tration ia the eater. la aaay Instances, the lead content of the'eatar aaqr not be appreciably inoreaeed, but in sens tanks the eoaeeatrotiflB eeuld aaaoeed the 0JL ag* per liter wBfftww of the Public Health Sendee Bsiakiag Water Standards. Par this reason end feessase ether suitable coat ings fur potable eater tunics ere wtliWOi e would pre fer to have lose taole eaterials then laid plgasat palate : r . D Kean* -2- September 5j 1957 used lou are probably acquainted with Military Speci fication Mil-P-15H;5 A covering a zinc dost pignanted paint for the interior of potable water tanka* Your letter also inquires about taste and odor probleBsa due to tank coatings* We hart no informtian on this subject* Very truly yours. *** - Joseph * Flanagan, Jr* Assistant Director - /.CM *->*****'**,, M4--*u *4___ ___ ** **? . 9 *ii <r|* H Js (i v j r,- *r