@misc{indiciae8bda52e288bc, title = {Microbial Quality of the Nation's Ground-Water Resources, 1993-2004}, author = {Sandra S. Embrey and Donna L. Runkle}, year = {2006}, doi = {10.3133/sir20065290}, url = {https://pubs.usgs.gov/publication/sir20065290}, note = {Source identifier: sir20065290} }