Hi,

Several library inquiries on topic; may be of interest: 

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Surface Water Quality:

Human Activities Increase Salt Content in Many of the Nation’s Streams
http://www.usgs.gov/newsroom/article.asp?ID=3915&from=rss&utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+usgs%2FnewsEverything+%28Newsroom+-+Everything%29#.U58LZfldVRo

Dissolved-Solids Sources, Loads, Yields, and Concentrations in Streams of the Conterminous United States
http://pubs.usgs.gov/sir/2014/5012/

SPARROW surface water-quality modeling:
http://water.usgs.gov/nawqa/sparrow/

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Groundwater Quality:

Well-Water for 80,000 New Hampshire Residents May contain Metals Exceeding Human Health Standards

http://www.usgs.gov/newsroom/article.asp?ID=3913&from=rss&utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+usgs%2FnewsEverything+%28Newsroom+-+Everything%29#.U58MCfldVRo

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Enjoy the day,
Emily


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Emily Wild
Librarian (Physical Scientist)
U.S. Geological Survey
Denver Library
Box 25046, MS 914
Denver Federal Center
Denver, CO 80225-0046
ph: (303) 236-1003
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USGS Libraries: http://library.usgs.gov
Tutorials: http://tinyurl.com/lh3tmua
Professional Page: http://profile.usgs.gov/ecwild
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