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Appendix 2 - Analytical results for blanks collected from October 2011 through September 2013 during surface-water sampling at the Triangle Area Supply Monitoring Project study sites, North Carolina


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Pfeifle, C.A., Cain, J.L., and Rasmussen, R.B., 2016, Associated data for Surface-Water Supplies in the Triangle Area of North Carolina, Water Years 2012-13: U.S. Geological Survey data release,


The dataset contains the analytical results for quality-control samples collected during the surface-water sampling for the Triangle Area Water Supply Monitoring Project. The data are sampling-equipment blanks, sampling-vehicle (ambient) blanks, and field blanks collected during October 2011 through September 2013. Several study sites contained in this dataset were sampled for other USGS projects during the same time frame. Unless the quality-control samples at these sites were collected in conjunction with the Triangle Area Water Supply Monitoring Project, the data for other projects are not included in the dataset.


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tri1213_Appendix 2.txt 5.98 KB text/plain


Since 1988, the U.S. Geological Survey and a consortium of local governments have tracked water-quality conditions and trends in the water-supply lakes and streams in the Triangle area of North Carolina located within the upper Cape Fear and Neuse River Basins. These quality-control samples were collected and reviewed during October 2011 through September 2013 to ensure the project data-quality objectives were met.

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