@misc{indiciae9a84c903da2f, title = {Hexavalent and total chromium at low reporting concentrations in source-water aquifers and surface waters used for public supply in Illinois, 2013}, author = {P.C. Mills and Richard P. Cobb}, year = {2015}, doi = {10.3133/sir20155020}, url = {https://pubs.usgs.gov/publication/sir20155020}, note = {Source identifier: sir20155020} }