Chemical Quality of Surface Waters in Pennsylvania
GEOLOGICAL SURVEY [WATER-SUPPLY [PAPER 1619-W
Prepared in cooperation with the Commonwealth of Pennsylvania Department of Commerce and Department of Forests and Waters Chemical Quality of Surface Waters in Pennsylvania
By CHARLES N. DURFOR and PETER W. ANDERSON
CONTRIBUTIONS TO THE HYDROLOGY OF THE UNITED STATES
GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1619-W
Prepared in cooperation with the Commonwealth of Pennsylvania Department of Commerce and Department of Forests and Waters
UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1963 UNITED STATES DEPARTMENT OF THE INTERIOR
STEWART L. UDALL, Secretary
GEOLOGICAL SURVEY
Thomas B. Nolan, Director
For sale by the Superintendent of Documents, U.S. Government Printing Office Washington 25, D.C. CONTENTS