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Hydrologic Influences on Water Levels at Three Oaks Recreation Area, Crystal Lake, Illinois, April 14 through September 27, 2016 科技报告
报告编号: 70202350, 页数: 34, 2019
作者:  Gahala, Amy M.
Adobe PDF(3126Kb)  |  收藏  |  浏览/下载：39/10  |  提交时间：2019/11/06
Hydrologic balance, water quality, chemical-mass balance, and geochemical modeling of hyperalkaline ponds at Big Marsh, Chicago, Illinois, 2016–17 科技报告
报告编号: 70204773, 页数: 42, 2019
作者:  Gahala, Amy M.;  Seal, Robert R. rseal@usgs.gov;  Piatak, Nadine M. npiatak@usgs.gov
Adobe PDF(3756Kb)  |  收藏  |  浏览/下载：30/12  |  提交时间：2019/11/06
Assessment of water resources in areas that affect the habitat of the endangered Hine’s emerald dragonfly in the Lower Des Plaines River Valley, Illinois 科技报告
报告编号: 70197421, 页数: 118, 2018
作者:  Kay, Robert T.;  Gahala, Amy M. agahala@usgs.gov;  Bailey, Clinton
Adobe PDF(14756Kb)  |  收藏  |  浏览/下载：39/20  |  提交时间：2019/11/06
Hydrogeology and water quality of sand and gravel aquifers in McHenry County, Illinois, 2009-14, and comparison to conditions in 1979 科技报告
报告编号: 70191270, , 2017
作者:  Gahala, Amy M. agahala@usgs.gov
收藏  |  浏览/下载：17/0  |  提交时间：2019/11/06