1. Microbiological quality of water from noncommunity supply wells in carbonate and crystalline aquifers of Pennsylvania Author/Creator: Lindsey, Bruce D., 1962- Publication/Creation: Denver, Colo. : U.S. Geological Survey, Branch of Information Services [distributor]. Resource Type: Book Access & Availability: Loading
2. Microbiological water quality in relation to water-contact recreation, Cuyahoga River, Cuyahoga Valley National Park, Ohio, 2000 and 2002 Author/Creator: Bushon, Rebecca N. Publication/Creation: Reston, Virginia : U.S. Geological Survey ; Denver, Colo. : U.S. Geological Survey, Information Services, 2004 Resource Type: Book Access & Availability: Loading