You are looking on one 8 1/2" by 11" 151 Page softcover copy of "NONPOINT SOURCE-STREAM NUTRIENT LEVEL RELATIONSHIPS: Anationwide study" byJames M. Omernik,printed inSeptember 1977.This is part of the Ecological Resource Series and is EPA-600/3-77-105. This item is in good condition. All pages are clean and tight.This report relates phosphorus and nitrogen levels in streams to the nonpoint source influences which are present in drainage areas and also demonstrates the geographic trends in stream nutrient levels in the contiguous United States. The information should be of interest and utility to water quality managers. This book has 5 folded color maps in the back cover pocket.Get this rare copynow. buy Early and buy Often. Thanks for Looking.BST0***Powered by eCRATER
