[BOOK][B] Pesticides in the nation's streams and ground water, 1992–2001
RJ Gilliom, JE Barbash, CG Crawford, PA Hamilton… - 2006 - pubs.usgs.gov
This report is one of a series of publications, The Quality of Our Nation's Waters, that describe
major findings of the NAWQA Program on water-quality issues of regional and national …
major findings of the NAWQA Program on water-quality issues of regional and national …
The quality of our nation's waters: Nutrients in the nation's streams and groundwater, 1992-2004
…, KR Burow, GM Clark, JAM Gronberg, PA Hamilton… - 2010 - pubs.usgs.gov
The US Geological Survey (USGS) is committed to providing the Nation with reliable scientific
information that helps to enhance and protect the overall quality of life and that facilitates …
information that helps to enhance and protect the overall quality of life and that facilitates …
Effects of agriculture on ground‐water quality in five regions of the United States
PA Hamilton, DR Helsel - Groundwater, 1995 - Wiley Online Library
Water‐quality conditions in surficial unconsolidated aquifers were assessed in five agricultural
regions in the United States. The assessment covers the Delmarva Peninsula, and parts …
regions in the United States. The assessment covers the Delmarva Peninsula, and parts …
Water-quality assessment of the Delmarva Peninsula, Delaware, Maryland, and Virginia--effects of agricultural activities on, and distribution of, nitrate and other …
PA Hamilton, JM Denver, PJ Phillips, RJ Shedlock - 1993 - pubs.usgs.gov
Agricultural applications of inorganic fertilizers and manure have changed the natural chemical
com-position of water in the surficial aquifer through-out the Delmarva Peninsula. Nitrate, …
com-position of water in the surficial aquifer through-out the Delmarva Peninsula. Nitrate, …
Nutrients in the Nation's streams and groundwater: National Findings and Implications
NM Dubrovsky, PA Hamilton - 2010 - pubs.er.usgs.gov
A comprehensive national analysis of the distribution and trends of nutrient concentrations
in streams and groundwater from 1992 through 2004 is provided by the National Water-…
in streams and groundwater from 1992 through 2004 is provided by the National Water-…
[HTML][HTML] Water quality in the nation's streams and aquifers: overview of selected findings, 1991-2001
PA Hamilton, TL Miller, DN Myers - 2004 - books.google.com
This report accompanies the publication of the last 15 of 51 river basin and aquifer assessments
by the USGS National Water-Quality Assessment (NAWQA) Program during 1991-2001. …
by the USGS National Water-Quality Assessment (NAWQA) Program during 1991-2001. …
Effects of food and shelter on aggressive activity in the crayfish Orconectes rusticus (Girard)
GM Capelli, PA Hamilton - Journal of Crustacean Biology, 1984 - JSTOR
In a simplified laboratory environment, aggressive activity (threats, strikes, fights) of Orconectes
rusticus declined with increasing availability of both shelter and food. Shelter and food …
rusticus declined with increasing availability of both shelter and food. Shelter and food …
Effect of forested wetlands on nitrate concentrations in ground water and surface water on the Delmarva Peninsula
PJ Phillips, JM Denver, RJ Shedlock, PA Hamilton - Wetlands, 1993 - Springer
The Delmarva Peninsula is an extensively farmed region in which nitrate from commercial
fertilizers and poultry has entered the ground water and streams. The peninsula contains …
fertilizers and poultry has entered the ground water and streams. The peninsula contains …
SPARROW MODELING-Enhancing Understanding of the Nation's Water Quality
…, RB Alexander, MD Woodside, PA Hamilton - 2009 - pubs.er.usgs.gov
The information provided here is intended to assist water-resources managers with interpretation
of the US Geological Survey (USGS) SPARROW model and its products. SPARROW …
of the US Geological Survey (USGS) SPARROW model and its products. SPARROW …
[BOOK][B] Are fertilizers and pesticides in the ground water?: a case study of the Delmarva Peninsula, Delaware, Maryland, and Virginia
PA Hamilton, RJ Shedlock - 1992 - books.google.com
Index maps showing locations of active and potentially active volcanoes and nearby population
centers (not all labeled) of the United States. See Appendix 1 for a summary of volcanic …
centers (not all labeled) of the United States. See Appendix 1 for a summary of volcanic …