@misc{indiciaefc31eeebb28d, title = {Characterization of and temporal changes in groundwater quality of the Upper Black Squirrel Creek Basin, El Paso County, Colorado, 2018–20}, author = {Zachary D. Kisfalusi and Nancy J. Bauch and Carleton R. Bern}, year = {2022}, doi = {10.3133/sir20225061}, url = {https://pubs.usgs.gov/publication/sir20225061}, note = {Source identifier: sir20225061} }