Arsenic, manganese, and pH groundwater quality data, selected well construction characteristics, and aquifer assignments for wells in the conterminous U.S.

This data release contains groundwater-quality data for three parameters of interest (arsenic, manganese, and pH) and well information for sample sites for aquifers...本次发布的数据集包含三类关注参数的地下水水质数据（砷（Arsenic）、锰（Manganese）与pH值），以及含水层（Aquifer）采样点位的井位相关信息……