Water-Quality Information -- Other Topics and Sources

• General Education: Environmental Issues
• Water hardness map (USGS) and chart from 1975, with an explanation of water hardness.
• Alkalinity map showing alkalinity of U.S. surface waters (USEPA, from 1988) and map description.
• Water - Introduction and links (USGS)
• Window to My Environment (EPA)
• Clean Water and Robocow (Agriculture and Agri-Food, Canada)

• Water Resources Links
  • Sediment page from the USGS Office of Surface Water (OSW).
  • Microbiology Program
  • Animal Feeding Operations (1999)
  • TMDLs - The USGS Role in TMDL Assessments
  • National Field Manual for the Collection of Water-Quality Data
  • National Water Quality Assesment Program -- NAWQA
  • National Irrigation Water Quality Program (2005)
  • National Research Program -- NRP
  • Office of Ground Water -- OGW
  • Water Use Information (2005)

• EPA Superfund Innovative Technology Evaluation (SITE) Program



• Search the website cleanwater.gov



• Sample of Information on Emerging and Selected Contaminants
• Arsenic
• Emerging--USGS Toxic Substances Hydrology Program
• Emerging--Department of Defense
• Endocrine disruptors, and other toxic substances
• Mercury
• Microorganisms
• Nutrients: Nitrates in ground water/ Flux and Sources of Nutrients in the Mississippi-Atchafalaya River Basin
• Pesticides and a Fact Sheet
• Radon
• Trace elements
• CDC National Report on Human Exposure to Environmental Chemicals
• VOCs

- "Volatile Organic Compounds in Ground Water from Rural Wells" available on NAWQA VOC page.

• Chemical databases

- The ChemBank (Initiative for Chemical Genetics) contains data on 2,500 biologically active small molecules, including many drugs and pesticides, chemical structures, and SMILES formulae for creating structures.
- ChemFinder provides free chemical searching and includes chemical structures (2D structures, 3D models), physical properties, as well as hyperlinks to other websites.
- Cole-Parmer's Chemical Compatability Database. Click on the chemical or solution of interest, click on the material of interest, then submit query, and you get a "chemical effect" rating.

• U.S. Department of Agriculture AgNIC
• Science organizations, agencies, and other sources

• Other USGS Disciplines
• Biology
• Geology
• Geography

OWQ Web Team