Quality Assurance Data
Quality assurance samples, including field blanks, replicates, and field-matrix spike samples were collected in order to evaluate possible sample contamination, precision and recovery of target analytes. More information is avaliable from the description of data sets option.
Surface Water
- Surface-water blank data
- Surface-water replicate graphs
[Nitrogen, Nitrite dissolved] |
[Ortho Phosphorus dissolved] |
[Nitrite plus Nitrate, dissolved] |
[Nitrogen, Ammonia dissolved] |
[Phosphorus, dissolved] |
[Nitrogen, Ammonia and organic dissolved] |
[Nitrogen, Ammonia and organic total] |
[Phosphorus total] |
[Organic carbon, dissolved] |
[Organic carbon, suspended] |
[Chloride, dissolved] |
[Potassium, dissolved] |
[Iron, dissolved] |
[Manganese, dissolved] |
[Calcium, dissolved] |
[Magnesium, dissolved] |
[Silica, dissolved] |
[Sodium, dissolved] |
[Sulfate, dissolved] |
[Fluoride, dissolved] |
- Surface-water pesticide spike data
Ground Water
- Ground water blank data
- Ground-water replicate graphs
[Nitrogen, Nitrite dissolved] |
[Ortho Phosphorus dissolved] |
[Nitrite plus Nitrate, dissolved] |
[Nitrogen, Ammonia dissolved] |
[Phosphorus, dissolved] |
[Nitrogen, Ammonia and organic dissolved] |
[Organic carbon, dissolved] |
[Chloride, dissolved] |
[Potassium, dissolved] |
[Iron, dissolved] |
[Manganese, dissolved] |
[Calcium, dissolved] |
[Magnesium, dissolved] |
[Silica, dissolved] |
[Sodium, dissolved] |
[Sulfate, dissolved] |
[Fluoride, dissolved] |
[Bromide, dissolved] |
[Arsenic, dissolved] |
[Barium, dissolved] |
[Beryllium, dissolved] |
[Cadmium,dissolved] |
[Chromium, dissolved] |
[Cobalt, dissolved] |
[Copper, dissolved] |
[Lead, dissolved] |
[Molybdenum, dissolved] |
[Nickel, dissolved] |
[Silver, dissolved] |
[Zinc, dissolved] |
[Antimony, dissolved] |
[Aluminum, dissolved] |
[Selenium, dissolved] |
[Uranium, dissolved] |
[Manganese, dissolved] |
[Radon, total] |
- Ground-water pesticide spike data
- Ground-water volatile organic compound spike data
ACF main data page
ACF NAWQA home page
The URL for this page is http://ga.water.usgs.gov
/nawqa/data.qa.html
If you have questions or comments about this document contact wbhughes@usgs.gov
Last Modified: Thursday, 17-Jul-2008 11:11:16 EDT
