The data set contains 3 files from three sources (1) state (Washington and Oregon), (2) Combined EPA survey date from Griffith, (3) data from USGS. This dataset is associated with the following publication: Cormier, S., L. Zheng, G. Hayslip, and C. Flaherty. A field-based characterization of conductivity in areas of minimal alteration: a case example in the Cascades of northwestern United States. SCIENCE OF THE TOTAL ENVIRONMENT. Elsevier BV, AMSTERDAM, NETHERLANDS, 633: 1657-1666, (2018).