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Volatile organic compound, polychlorinated biphenyl, and biogeochemical data from passive samplers and laboratory experiments for wetland bioremediation study, Standard Chlorine of Delaware, Inc. Superfund Site, New Castle County, Delaware, 2019–2021 This metadata record contains 15 tables with results from field and laboratory tests used to assess bioremediation in wetland areas at the Standard Chlorine of Delaware, Inc. Superfund site, New Castle County, Delaware, during 2019-2021. Included in the dataset are (1) polychlorinated biphenyl (PCB) concentrations in wetland sediment from sediment microcosm laboratory experiments, (2) chlorobenzene concentrations in wetland sediment from sediment microcosm laboratory experiments, (3) polychlorinated biphenyl concentrations from PCB microcosm laboratory experiments using polyethylene strips, (4) chlorobenzene concentrations from PCB microcosm laboratory experiments using polyethylene strips, (5) total iron and ferrous... Categories: Data; Tags: Delaware, Delaware City, Environmental Health, Geochemistry, New Castle, All tags... Standard Chlorine of Delaware, Inc. Superfund site, Superfund site, USGS Science Data Catalog (SDC), Water Quality, bioavailability, bioremediation, chlorobenzene, compost microcosm, contamination and pollution, environment, geoscientificInformation, industrial pollution, iron, methane, microcosm, passive sampling, polychlorinated biphenyls, remediation, sediment, volatile organic compound, wetland ecosystems, Fewer tags Geochemical data from laboratory and field experiments conducted to evaluate degradation of perchlorate and RDX in groundwater, White Sands Missile Range HTA site, New Mexico This metadata record presents geochemical analytical data determined during laboratory experiments and a field pilot test collected during 2008-2010 to evaluate degradation of the cyclic nitramine explosive, hexahydro-1,3,4-trinitro-1,3,5-triazine (RDX), and perchlorate in a fractured rock aquifer. These experiments were conducted as part of a study to evaluate the feasibility of enhanced bioremediation for treatment of groundwater contaminants at White Sands Missile Range HTA site, New Mexico. Experiments included two anaerobic microcosm experiments, a culture enrichment test, and field injection test with the dechlorinating culture WBC-2. Data includes concentrations of nitrate, ammonium, perchlorate, RDX, and... Categories: Data; Tags: New Mexico, RDX, USGS Science Data Catalog (SDC), WBC-2 consortium, Water Resources, All tags... White Sands Missile Range, bioremediation, field injection test, fractured rock, inlandWaters, microcosms, perchlorate, Fewer tags Quantification of Bouteloua curtipendula biomass, organic matter accumulation, and geochemical changes during growth in mining wastes Re-vegetation of mining wastes is difficult due to the inhospitable conditions for plant growth. Our aim was to determine whether the combined addition of municipal waste compost and plant growth promoting endophytes (i.e., microorganisms that live within plants) could improve plant growth, organic matter accumulation, and phytostabilization of metal contaminants across multiple types of hard rock mine waste. We grew a widespread perennial grass, Bouteloua curtipendula, for 45 days in tailings (Ag-Pb-Au mine) and waste rock (porphyry copper mine) sourced from southeastern Arizona, USA. We quantified organic matter accumulation, microbial biomass, plant growth rates, biomass yields, plant metal concentrations, and... Categories: Data; Tags: Arizona, bioremediation, biota, carbon cycling, carbon isotope analysis, All tags... contaminant transport, laboratory experiments, metallic mineral resources, vegetation, Fewer tags Tackifier impacts on growth of Great Basin moss Bryum argenteum, 2017-2018 The dataset supports a larger study that examined the impacts of three tackifiers (guar, psyllium, and polyacrylamide) on growth of two dryland mosses (Bryum argenteum and Syntrichia ruralis). Moss fragments were grown in petri dishes and subjected to individual tackifiers in one of three possible concentrations (0.5x, 1x, or 2x) of the respective manufacturer's recommended application rate. Distilled water was used as a control treatment, giving a total of ten treatments (nine tackifier-concentration combinations and a water control). Bryum fragments were watered four times daily for six weeks and Syntrichia fragments were watered twice daily for five weeks, after which the experiments were concluded. Shoot length,... Categories: Data; Tags: Bryum argenteum, Great Basin, Intermountain West, Oregon, Syntrichia ruralis, All tags... biocrust, biological soil crust, bioremediation, biota, desert ecosystems, ecological restoration, environment, farming, mosses, natural resource management, remediation, Fewer tags Environmental Conditions during Growth of Bouteloua curtipendula in Mining Wastes A 45-day mesocosom experiment was conducted to determine how well a perennial grass species (Bouteloua curtipendula) grew in mining wastes from southeastern Arizona. The experiment tested whether the addition of an endophyte seed coat combined with a top dressing of compost improved grass growth, organic matter accumulation, and metal stabilization in the mining wastes (i.e., phytostabilization). The mining wastes were sourced from two formerly active hard rock mines: waste rock from a porphyry copper open pit mine and tailings from a tunnel and shaft polymetallic mine. The plants were grown for 45 days in an indoor growing complex. These data give the environmental conditions of the indoor growing complex (light,... Categories: Data; Tags: Arizona, bioremediation, biota, laboratory experiments, vegetation Mass adjustment ratios used for Great Basin mosses Bryum argenteum and Syntrichia ruralis, 2017-2018 The dataset supports a larger study that examined the impacts of three tackifiers (guar, psyllium, and polyacrylamide) on growth of two dryland mosses (Bryum argenteum and Syntrichia ruralis). Moss fragments were grown in petri dishes and subjected to individual tackifiers in one of three possible concentrations (0.5x, 1x, or 2x) of the respective manufacturer's recommended application rate. Distilled water was used as a control treatment, giving a total of ten treatments (nine tackifier-concentration combinations and a water control). Bryum fragments were watered four times daily for six weeks and Syntrichia fragments were watered twice daily for five weeks, after which the experiments were concluded. Shoot length,... Categories: Data; Tags: Bryum argenteum, Great Basin, Intermountain West, Oregon, Syntrichia ruralis, All tags... biocrust, biological soil crust, bioremediation, biota, desert ecosystems, ecological restoration, environment, farming, mosses, natural resource management, remediation, Fewer tags Volatile organic compound and metal concentrations associated with field sampling and laboratory experiments and in situ microcosm results, wetland bioremediation study, Standard Chlorine of Delaware, Inc. Superfund site, New Castle County, Delaware, 2015–19 This dataset presents analytical results for laboratory and field tests conducted during 2015–19 as part of a bioremediation study in the wetland study area at Standard Chlorine of Delaware, Inc. Superfund site. Included in the dataset are (1) volatile organic compound and metal concentrations from field sampling in the wetland area, (2) results from in situ microcosms in the reactive barriers and control areas, and (3) volatile organic compound concentrations from laboratory experiments to test reactive mixtures for a barrier. Categories: Data; Tags: Aquatic Biology, Environmental Health, Hydrology, USGS Science Data Catalog (SDC), Water Quality, All tags... bioaugmentation, bioremediation, chlorobenzenes, inlandWaters, wetland porewater, Fewer tags Optical Petrography, Bulk Chemistry, Micro-scale Mineralogy/Chemistry, and Bulk/Micron-Scale Solid-Phase Speciation of Natural and Synthetic Solid Phases Used in Chromium Sequestration and Re-oxidation Experiments with Sand and Sediment from Hinkley, CA This data release contains macro and microscale datasets describing the abundance, valence states, and mineral residence(s) of chromium, iron, and manganese in natural and synthetic mineral mixtures used in laboratory experiments designed to simulate dynamic conditions in an engineered aquifer system [see Izbicki and Groover (2018) and Miller and others (2020)]. The landing page contains primary metadata about this release and an overview "sample information" table containing descriptions of samples, their analyses, and their methods of preparation and preservation. As there is not a one-to-one correlation between samples and types of analyses performed, the overview table is an important navigation tool to locate... Categories: Data; Tags: California, Geochemistry, Hinkley, Raman spectroscopy, San Bernardino, All tags... USGS Science Data Catalog (SDC), Water Quality, Water Resources, X-ray Fluorescence, X-ray absorption spectroscopy, biological and physical processes, bioremediation, chemical analysis, chromium, contaminant transport, environment, geochemistry, groundwater, groundwater quality, iron, laboratory experiments, manganese, optical petrography, oxidation and reduction, time series datasets, unconsolidated deposits, Fewer tags Microbial community analyses of groundwater collected during an enhanced bioremediation experiment of trichlorethylene in a fractured rock aquifer, West Trenton, NJ (2008-2015) These datasets contain microbial community data from groundwater samples collected at an in situ bioremediation site located at the former Naval Air Warfare Center (NAWC), West Trenton, NJ. DNA was extracted from groundwater samples collected from monitoring wells at the NAWC study site from July 2008 through July 2015 and analyzed for microbial community structure. Sample collection coincided with a groundwater bioremediation experiment investigating the microbial degradation of the contaminant trichloroethylene (TCE) prevalent in the targeted region of the aquifer. Nutrient addition and a microbial consortium, commercially developed to stimulate the degradation of TCE and TCE byproducts, was introduced to the... Categories: Data; Tags: 16S rRNA sequencing, Environmental Health, Genetics, Naval Air Warfare Center, Trichlorethylene, All tags... USGS Science Data Catalog (SDC), Water Quality, Water Resources, West Trenton, NJ, aquifer, bioaugmentation, bioremediation, contamination and pollution, groundwater, microbial analysis, taxonomy, Fewer tags Tackifier impacts on growth of Great Basin moss Syntrichia ruralis, 2017-2018 The dataset supports a larger study that examined the impacts of three tackifiers (guar, psyllium, and polyacrylamide) on growth of two dryland mosses (Bryum argenteum and Syntrichia ruralis). Moss fragments were grown in petri dishes and subjected to individual tackifiers in one of three possible concentrations (0.5x, 1x, or 2x) of the respective manufacturer's recommended application rate. Distilled water was used as a control treatment, giving a total of ten treatments (nine tackifier-concentration combinations and a water control). Bryum fragments were watered four times daily for six weeks and Syntrichia fragments were watered twice daily for five weeks, after which the experiments were concluded. Shoot length,... Categories: Data; Tags: Bryum argenteum, Great Basin, Intermountain West, Oregon, Syntrichia ruralis, All tags... biocrust, biological soil crust, bioremediation, biota, desert ecosystems, ecological restoration, environment, farming, mosses, natural resource management, remediation, Fewer tags Aqueous and Solid Phase Chemistry of Sequestration and Re-oxidation of Chromium in Experimental Microcosms with Sand and Sediment from Hinkley, CA Cr(VI) contaminated groundwater at Hinkley is undergoing bioremediation using added ethanol as a reductant in a volume of the aquifer defined as the In-situ Reduction Zone (IRZ). This treatment effectively reduces Cr(VI) to Cr(III) which is rapidly sequestered by sorption to aquifer particle surfaces and by co-precipitation within iron or manganese bearing minerals forming in place as reduction proceeds. Successful mitigation of the extant Cr(VI) plume is projected to require 90 to 220 years, at which time ethanol loading will likely cease. This projection assumes that Cr(VI) removal is permanent and that no Cr(III) will oxidize back to Cr(VI) in the event of changing hydrological conditions resulting in oxygen... Categories: Data; Tags: California, Geochemistry, Hinkley, San Bernardino, USGS Science Data Catalog (SDC), All tags... Water Quality, biological and physical processes, bioremediation, biota, chemical analysis, chromium, contaminant transport, geochemistry, groundwater, iron, isotopic analysis, laboratory experiments, manganese, mass spectroscopy, oxidation and reduction, sorption, time series datasets, Fewer tags Phytostabilization in Polymetallic Tailings using Compost and Endophyte Additions Mining wastes can pose environmental hazards. These hazards can be mitigated by promoting the growth of native plants that can stabilize the mine wastes and potentially toxic elements in situ (i.e., phytostabilization). We grew a widespread perennial grass species (Bouteloua curtipendula) in dolomite amended polymetallic tailings from a historic mine in southeastern Arizona (USA). We applied a compost top dressing and an endophyte seed coating alone and in combination to quantify improvements in plant growth and potentially toxic trace element stabilization. This release provides the data on the following: temperature, light, and humidity during growth; plant growth rates and biomass yields; organic matter concentrations... Categories: Data; Tags: Arizona, Blue Nose Mine, Environmental Health, Geochemistry, Mineral Resources, All tags... Soil Sciences, USGS Science Data Catalog (SDC), bioremediation, biota, environment, mining hazards, remediation, soil resources, toxic trace element contamination, Fewer tags