Geochemical data for groundwater and surface water in the Umatilla River basin, Oregon, 2014–2022

This USGS data release presents data used to estimate and summarize where and when recharge occurs to the Columbia River Basalt Group (CRBG) in the Umatilla River basin, Oregon, 2014–2022. The supplemental data consist of two child items.

The child items are:
(1) Discrete geochemical data for groundwater and surface water samples in the Umatilla River basin, 2014–2022, and

(2) Dissolved gas solubility calculations for groundwater samples collected in the Umatilla River basin, Oregon, 2014–2019