Skip to main content
Advanced Search

Filters: Tags: Major elements (X)

4 results (84ms)   

View Results as: JSON ATOM CSV
thumbnail
This study focuses on providing a broad-scale assessment of composition of water chemistry in urban stormwater runoff. The stormwater runoff is a source of recharge to groundwater by Green Infrastructure (GI) practices or it may become a source of recharge to groundwater to reduce stormwater volumes to surface waters or augment groundwater supply. The chemical composition of the stormwater runoff is important to understanding the potential impacts of surface water recharge to groundwater. In this study, 21 field sites were sampled for stormwater runoff during 50 storm events from 7/28/2016 through 12/8/2017. Major elements were measured by inductively coupled plasma-optical emission spectrometry and trace elements...
thumbnail
The Ankeny, Iowa wastewater treatment facility (WWTF) was decommissioned in November 2013 providing a unique opportunity to characterize the impacts of WWTF discharge on water quality at the surface-water/groundwater interface in a shallow, unconfined alluvial aquifer. The Ankeny WWTF discharged treated effluent for nearly forty years into Fourmile Creek, located in Ankeny, Iowa. Dataset includes site information (Table 1), analytical methods (Table 2), piezometer water level elevations (Table 3), trace and major element concentrations collected from 2011 to 2013 before the WWTF shutdown (Table 4), and trace and major element concentration collected from 2013 to 2014 after the WWTF shutdown (Table 5).
thumbnail
Record amounts of precipitation fell across the Colorado Front Range from September 9 to 16, 2013, resulting in extensive flooding in the South Platte River and its major mountain tributaries. In this study, the effects of the flood on the City of Boulder, Colorado urban hydrology system were assessed using weekly time-series sampling of 3 source waters (Boulder tap water, Boulder wastewater treatment facility effluent, and Boulder Creek water) conducted from September 20 to October 16, 2012 (n=5) and August 13 to September 30, 2013 (n=8). The effect of the flood on the South Platte River was assessed using a single basin-wide sampling of 5 main stem and 7 tributary sites from September 18 to 22, 2013. Filtered...
thumbnail
This data release contains analytical data and images for a suite of drill core samples from the Mineral Hill alkaline complex (MHAC), northeastern Wyoming. Geochemistry data include major and trace element analytical results for 103 alkaline igneous rock samples. Images include hand sample photographs of halved core and full thin section images captured in transmitted, plane-polarized and cross-polarized light. Samples are from two core holes drilled by Humble Oil Company in 1970, and subsequently acquired and stored by Felix Mutschler at Eastern Washington University. The two skeletonized (incomplete) drill cores were acquired by the U.S. Geological Survey Geology, Minerals, Energy, and Geophysics Spokane office...
Categories: Data; Tags: Alkaline silicate rocks, Au, Crook County, Economic Geology, Fire assay, All tags...


    map background search result map search result map Concentrations and associated method information for trace and major elements in Fourmile Creek near Ankeny, Iowa, USA during the 2011-2014 wastewater treatment facility pre/post-closure assessment Major and trace element concentrations in water samples collected before and during the September 2013 Colorado South Platte River flood Survey of major and trace elements in stormwater runoff from across the United States, 2016 to 2017 Lithogeochemistry and images of selected drill core samples from the Mineral Hill alkaline complex, Wyoming Lithogeochemistry and images of selected drill core samples from the Mineral Hill alkaline complex, Wyoming Concentrations and associated method information for trace and major elements in Fourmile Creek near Ankeny, Iowa, USA during the 2011-2014 wastewater treatment facility pre/post-closure assessment Major and trace element concentrations in water samples collected before and during the September 2013 Colorado South Platte River flood Survey of major and trace elements in stormwater runoff from across the United States, 2016 to 2017