Datasets from Groundwater-Quality and Select Quality-Control Data from the National Water-Quality Assessment Project, January through December 2015 and Previously Unpublished Data from 2013-2014

Groundwater-quality data were collected from 502 wells as part of the National Water-Quality Assessment Project of the U.S. Geological Survey National Water-Quality...本数据集包含从502口监测井采集的地下水水质数据，该数据为美国地质调查局（U.S. Geological Survey）国家水质评估项目（National Water-Quality Assessment Project）的组成部分之一，原文后续内容存在截断。