Document pmRg3vpovZZQyEg3BeX4QN2B

.E. 1 d u Po n t d e Ne mo u r s & Co mp a n y Wil min g t o n , De l a w a r e 19898 ENGINEERING DEPARTMENT LOUVIERS BUILDING March 7, 1986 Project Manager Air Quality Criteria for Lead U. S, Environmental Protection Agency Environmental Criteria and Assessment Office MD-52 Research Triangle Park, NC 27711 Gentlemen: E. I. du Pont de Nemours & Co., Inc., herewith submits comments on the February 1986 Addendum to the second external review draft of Air Quality Criteria for Lead (EPA-600/8-83-028B). Yours very truly, ENGINEERING SERVICES DIVISION Air, Hazards and Health Engineering ENGINEERING SERVICES DIVISION Applied Statistics Group JMP:CGP:ssd Atchs Charles G. Pfeifer Consultant Supervisor TEH 0412573