Zulimar Lucena 20250626 tabular digital data Denver, Colorado U.S. Geological Survey This dataset is a subset of Teeple, A.P., Lucena, Z., Payne, J.D., Fetkovich, E.J., Mashburn, S.L., and Dale, I.A., 2025, Data used for the characterization of the hydrogeologic framework, groundwater-flow system, geochemistry, and aquifer hydraulic properties of the shallow groundwater system in the Wilcox and Lorraine process areas of the Wilcox Oil Company Superfund site near Bristow, Oklahoma, 2022: U.S. Geological Survey data release, https://doi.org/10.5066/P9FR2ZF6. https://doi.org/10.5066/P9FR2ZF6 Andrew P. Teeple Zulimar Lucena Christopher L. Braun Evin J. Fetkovich Isaac A. Dale Shana L. Mashburn 2025 publication n/a US Geological Survey https://doi.org/10.3133/sir20255042 The Wilcox Oil Company Superfund site (hereinafter referred to as “the site”) was formerly an oil refinery in northeast of Bristow in Creek County, Oklahoma. Historical refinery operations contaminated the soil, surface water, streambed sediments, alluvium, and groundwater with refined and stored products at the site. The Wilcox and Lorraine process areas are where the highest concentrations of volatile organic compounds, semivolatile organic compounds, polycyclic aromatic hydrocarbons, and trace elements (including metals) (collectively hereinafter referred to as “contaminants”) were measured in a local shallow perched groundwater system within the alluvium (hereinafter referred to as the “alluvial aquifer”) at the site during previous site assessments. In order to understand the potential migration of contaminants through the soil and groundwater in these areas, the U.S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency, investigated aquifer characteristics of the alluvial aquifer in the Wilcox and Lorraine process areas of the site to (1) document hydraulic conductivity and other aquifer characteristics of the alluvial aquifer that govern contaminant fate and transport, (2) describe the geospatial extent and concentration of the contaminants in the alluvial aquifer in the Wilcox and Lorraine process areas, and (3) describe the geochemical controls pertaining to oxidation and reduction governing the fate and transport and the degradation potential of contaminants in the groundwater. This data release documents the data that were collected and briefly describes how they were used to characterize the hydrogeologic framework, groundwater-flow system, geochemistry, and aquifer hydraulic properties of the shallow groundwater system. Refer to the companion larger work citation (Teeple and others, 2025) for the complete description and data analyses. In October—November 2022, the U.S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency, collected groundwater samples from 33 wells at the Wilcox Oil Company Superfund site in Bristow, Oklahoma to characterize the geochemistry and assess the microbial communities in groundwater at this site. This dataset includes field properties (dissolved oxygen concentration [DO], oxidation-reduction potential, pH, specific conductance, groundwater temperature, and turbidity). Laboratory analyses consisted of volatile organic compounds, semi-volatile organic compounds, trace elements, natural attenuation geochemical indicators, and microbial community relative abundance. Laboratory analyses included environmental samples and quality-assurance and quality-control samples. These data were collected to characterize the geochemistry and assess the microbial communities in the groundwater at the Wilcox Oil Company Superfund site. Microbial community data are used to assess potential redox conditions; many redox processes are microbially mediated. Different types of water-quality data were collected to better inform resource-management decisions and are available to anyone interested in the water-quality conditions at the site. 20221010 20221113 ground condition Complete As needed Wilcox Oil Company Superfund site -96.387370 -96.381640 35.843404 35.838742 ISO 19115 Topic Category geoscientificInformation USGS Thesaurus geospatial analysis biomarkers water sampling chemical analysis scientific interpretation conceptual modeling geospatial datasets water chemistry hydrogeology hydrology contaminant transport geochemical processes petroleum industrial pollution groundwater quality chemical elements None Superfund Wilcox Oil Company benzene aquifer characterization USGS Metadata Identifier USGS:64935e6dd34ef77fcb01391e Geographic Names Information System Bristow Creek County Oklahoma U.S. Geological Survey Biocomplexity Thesaurus Bacteria SILVA 2019 database SILVA 138 n/a SILVA https://www.arb-silva.de/ Sequencing of the V4 region of the 16S ribosomal ribonucleic acid (16S rRNA) gene was done by using the Illumina MiSeq System (Illumina, Inc., San Diego, California). Classification was completed by using the Silva v. 138 reference database (SILVA, 2019; Quast and others, 2012). Bacteria were identified to the lowest possible resolution level of kingdom, phylum, class, order, family, and genus. Kingdom Bacteria Phylum Acidobacteriota Class Acidobacteriae Class Aminicenantia Class Blastocatellia Class Vicinamibacteria Phylum Actinobacteriota Class Acidimicrobiia Class Actinobacteria Class Coriobacteriia Phylum Armatimonadota Class Fimbriimonadia Phylum Bacteroidota Class Bacteroidia Class Ignavibacteria Phylum Bdellovibrionota Class Bdellovibrionia Class Oligoflexia Phylum Campilobacterota Class Campylobacteria Phylum Chloroflexi Class Anaerolineae Class Dehalococcoidia Class KD4-96 Phylum Cloacimonadota Class Cloacimonadia Phylum Cyanobacteria Class Vampirivibrionia Phylum Dependentiae Class Babeliae Phylum Desulfobacterota Class Desulfobaccia Class Desulfobacteria Class Desulfobulbia Class Desulfomonilia Class Desulfovibrionia Class Desulfuromonadia Class Syntrophia Class Syntrophobacteria Phylum Elusimicrobiota Class Elusimicrobia Phylum Firmicutes Class Bacilli Class Clostridia Class Desulfotomaculia Class Negativicutes Class Syntrophomonadia Phylum Fusobacteriota Class Fusobacteriia Phylum Gemmatimonadota Class Gemmatimonadetes Phylum MBNT15 Phylum Myxococcota Class Myxococcia Class Polyangia Phylum Nitrospirota Class Nitrospiria Class Thermodesulfovibrionia Phylum NKB15 Phylum Patescibacteria Class ABY1 Class CPR2 Class Parcubacteria Phylum Planctomycetota Class Phycisphaerae Class Planctomycetes Phylum Proteobacteria Class Alphaproteobacteria Class Gammaproteobacteria Phylum RCP2-54 Phylum Spirochaetota Class Spirochaetia Phylum Verrucomicrobiota Class Chlamydiae Class Kiritimatiellae Class Omnitrophia Class Verrucomicrobiae Phylum WS4 None. Please refer to the "Distribution Information" section for details. None. Users are advised to read the dataset's metadata thoroughly to understand appropriate use and data limitations. Oklahoma-Texas Water Science Center U.S. Geological Survey Public Information Officer mailing and physical

1505 Ferguson Ln

Austin TX 78754 US 512-927-3500 otpublicinfo@usgs.gov Comma Separated Values (.csv) files are provided. These text files can be opened by any text editor. The operating system and software used to open, view, and manipulate the files are as follows: Microsoft Windows 10 Enterprise (Version 22H2 Build 19045.3086 Experience Pack 1000.19041.1000.0) Microsoft Excel for Microsoft 365 MSO (Version 2208 Build 16.0.15601.20698) 32-bit R-4.2.2 for Windows To evaluate the variability of sample processing and analysis in groundwater-quality constituents, data from field-replicate samples were considered. A total of three replicate samples were collected and analyzed for volatile organic compounds (VOCs) and semi-volatile organic compounds (SVOCs), and two replicate samples were collected and analyzed for trace elements. Replicate samples were only used to assess variability when results were greater than or equal to the method detection limit. An equipment blank sample was collected and analyzed for VOCs, SVOCs, and trace elements, and five trip blanks were collected and analyzed for VOCs. The equipment blank sample was collected and analyzed to assess the potential bias resulting from contamination associated with environmental conditions, collection and processing procedures, equipment cleaning, transport, and laboratory analysis. Trip blank samples were collected and analyzed to assess the potential contamination associated with transport of samples from the field to the laboratory. None of the constituents analyzed were detected in the equipment blank sample or trip blank samples, thereby indicating that field and analytical procedures did not bias reported concentrations. All data values were peer reviewed. Data were checked to ensure all results were within expected ranges. Data outside expected ranges were further evaluated to determine if a sample collection or analysis error had occurred. If an error was identified, associated results were removed from the dataset. Dataset is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. No formal positional accuracy tests were conducted. All groundwater monitoring well and piezometer locations were recorded from static real-time kinematic global positioning system occupations and processed by using rapid-static processing from the Online Positioning User Service (National Geodetic Survey, 2024) and Trimble's CenterPoint RTX post-processing (Trimble Inc., 2024) technology. The reported horizontal positional accuracies ranged between 0.02 to 0.73 feet. No formal positional accuracy tests were conducted. All groundwater monitoring well and piezometer locations were recorded from static real-time kinematic global positioning system occupations and processed by using rapid-static processing from the Online Positioning User Service (National Geodetic Survey, 2024) and Trimble's CenterPoint RTX post-processing (Trimble Inc., 2024) technology. The reported vertical positional accuracies ranged between 0.1 to 1.1 feet. National Geodetic Survey 2024 website https://geodesy.noaa.gov/OPUS/ Digital and/or Hardcopy 20241121 date website was accessed National Geodetic Survey (2024) Online tool that was used to post-process the real-time kinematic global positioning system data. Trimble Inc. 2024 website https://trimblertx.com/UploadForm.aspx Digital and/or Hardcopy 20241121 date website was accessed Trimble Inc. (2024) Online tool that was used to post-process the real-time kinematic global positioning system data. U.S. Geological Survey 2021 publication Techniques of Water-Resources Investigations 9 Reston, Virginia U.S. Geological Survey https://doi.org/10.3133/twri09 Digital and/or Hardcopy 2003 2021 publication date U.S. Geological Survey (variously dated) Description of USGS standard field collection methods and protocols. Puls, R.W. Barcelona, M.J. 1996 publication 12 p., accessed January 19, 2023 https://www.epa.gov/sites/default/files/2015-06/documents/lwflw2a.pdf Digital and/or Hardcopy 1996 publication date Puls and Barcelona (1996) Description of low-flow groundwater sampling methods. Patton, C.J. Kryskalla, J.R. 2011 publication U.S. Geological Survey Techniques and Methods book 5, chap. B8 Reston, Virginia U.S. Geological Survey 34 p., accessed February 9, 2023 https://doi.org/10.3133/tm5B8 Digital and/or Hardcopy 2011 publication date Patton and Kryskalla (2011) Description of analytical laboratory methods for the determination of nitrate and nitrite in water samples. Fishman, M.J. Friedman, L.C. 1989 publication U.S. Geological Survey Techniques of Water-Resources Investigations book 5, chap. A1 Reston, Virginia U.S. Geological Survey 545 p., accessed February 9, 2023 https://doi.org/10.3133/twri05A1 Digital and/or Hardcopy 1989 publication date Fishman and Friedman (1989) Description of analytical laboratory methods for the determination of sulfate and chloride in water samples. U.S. Environmental Protection Agency 2018 publication 64 p., accessed February 9, 2023 https://www.epa.gov/esam/epa-method-8270e-sw-846-semivolatile-organic-compounds-gas-chromatographymass-spectrometry-gc Digital and/or Hardcopy 2018 publication date U.S. Environmental Protection Agency (2018a) Description of analytical laboratory methods for the determination of semivolatile organic compounds in water samples. U.S. Environmental Protection Agency 2017 publication 52 p., accessed February 9, 2023 https://www.epa.gov/sites/default/files/2018-06/documents/method_8260d_update_vi_final_06-11-2018.pdf Digital and/or Hardcopy 2017 publication date U.S. Environmental Protection Agency (2017) Description of analytical laboratory methods for the determination of volatile organic compounds in water samples. U.S. Environmental Protection Agency 2014 publication 33 p., accessed February 9, 2023 https://www.epa.gov/sites/default/files/2015-12/documents/6020b.pdf Digital and/or Hardcopy 2014 publication date U.S. Environmental Protection Agency (2014) Description of analytical laboratory methods for the determination of metals by inductively coupled plasma in water samples. U.S. Environmental Protection Agency 2018 publication 35 p., accessed February 9, 2023 https://www.epa.gov/sites/default/files/2015-12/documents/6010d.pdf Digital and/or Hardcopy 2018 publication date U.S. Environmental Protection Agency (2018b) Description of analytical laboratory methods for the determination of metals by inductively coupled plasma and atomic emission spectrometry in water samples. Schloss, P.D. Westcott, S.L. Ryabin, T. Hall, J.R. Hartmann, M. Hollister, E.B. Lesniewski, R.A. Oakley, B.B. Parks, D.H. Robinson, C.J. Sahl, J.W. Stres, B. Thallinger, G.G. Van Horn, D.J. Weber, C.F. 2009 publication Applied and Environmental Microbiology v. 75, no. 23 p. 7537–7541, accessed June 21, 2023 https://doi.org/10.1128/AEM.01541-09 Digital and/or Hardcopy 2009 publication date Schloss and others (2009) Description of mothur software used to process microbial community data. Kozich, J.J. Westcott, S.L. Baxter, N.T. Highlander, S.K. Schloss, P.D. 2013 publication Applied and Environmental Microbiology v. 79, no. 17 p. 5112–5120, accessed June 21, 2023 https://doi.org/10.1128/AEM.01043-13 Digital and/or Hardcopy 2013 publication date Kozich and others (2013) Description of sequencing platform used to process microbial community data. Quast, C. Pruesse, E. Yilmaz, P. Gerken, J. Schweer, T. Yarza, P. Peplies, J. Glöckner, F.O. 2012 publication Nucleic Acids Research v. 41, no. D1 p. D590–D596, accessed June 21 https://doi.org/10.1093/nar/gks1219 Digital and/or Hardcopy 2012 publication date Quast and others (2012) Description of the SILVA ribosomal RNA gene database used to classify taxonomic composition in water-quality samples. Hudson, F. 2004 publication 15 p., accessed February 9, 2023 https://archive.epa.gov/region1/info/testmethods/web/pdf/rsksop175v2.pdf Digital and/or Hardcopy 2004 publication date Hudson (2004) Description of analytical laboratory methods for the determination of methane in water samples. MO BIO Laboratories Inc. 2014 publication https://www.qiagen.com/us/resources/resourcedetail?id=faaba49d-9d10-48cf-a461-01d5302fea49&lang=en Digital and/or Hardcopy 2014 publication date MO BIO Laboratories Inc. (2014) Methods for isolation of DNA from groundwater samples. ThermoFisher Scientific 2023 publication https://assets.thermofisher.com/TFS-Assets/BID/brochures/kingfisher-instruments-experience-brochure.pdf Digital and/or Hardcopy 2023 publication date ThermoFisher Scientific (2023) Description of instrument used for sample preparation for RNA extraction. Illumina 2022 publication https://www.illumina.com/content/dam/illumina/gcs/assembled-assets/marketing-literature/miseq-system-data-sheet-m-gl-00006/miseq-data-sheet-m-gl-00006.pdf Digital and/or Hardcopy 2022 publication date Illumina (2022) Description of instrument used for sequencing. Leinonen, R. Sugawara, H. Shumway, M. 2011 publication https://doi.org/10.1093/nar/gkq1019 Digital and/or Hardcopy 2011 publication date Leinonen and others (2011) Description of the Sequence Read Archive database. mothur 2023 publication Accessed October 13, 2023 https://mothur.org/wiki/miseq_sop/# Digital and/or Hardcopy 2023 Refer to "Supplemental Information" mothur (2023) Sequence processing procedures. In-Situ Inc. 2023 website https://in-situ.com/us/aqua-troll-600-multiparameter-sonde Digital and/or Hardcopy 20230119 date website was accessed In-Situ Inc. (2023) Provides specifications for the multiparameter sonde used for data collection. Hach 2023 website https://www.hach.com/p-2100q-portable-turbidimeter/2100Q01 Digital and/or Hardcopy 20230119 date website was accessed Hach (2023) Provides specifications for the turbidity meter used for data collection. CHEMetrics 2023 website https://www.chemetrics.com/instrumental/ Digital and/or Hardcopy 20230428 date website was accessed CHEMetrics (2023) Provides information for the Vacu-vial collection method. Groundwater-quality samples were collected by following protocols for low-flow groundwater sampling (Puls and Barcelona, 1996). Samples were collected by using a peristaltic pump with dedicated polytetrafluoroethylene-lined tubing. Wells were purged of groundwater within the well column to ensure that groundwater being sampled was representative of the aquifer. During well purging, field properties (dissolved oxygen concentration, oxidation-reduction potential, pH, specific conductance, groundwater temperature, and turbidity) were measured and recorded with an In-Situ AquaTroll 600 multiparameter sonde (In-Situ Inc., 2023) and a Hach 2100Q portable turbidity meter (Hach, 2023). Because the turbidity values in the in-situ water in some wells were higher than the operational range of the Hach turbidity meter, turbidity was measured with the AquaTroll 600 multiparameter sonde at those wells. A well was considered stable and the purging of the well ceased when the field properties were within the criteria established in Puls and Barcelona (1996) for three consecutive measurements. Because of low recharge rates, some wells were completely dewatered during stabilization of field properties or during sample collection. If a well was dewatered during purging or sampling, the well was left to recharge overnight, and sampling was continued the following day, when possible, without recording field properties. Because these wells had already been pumped dry, any recharge was presumed to be representative of the aquifer. U.S. Geological Survey (USGS) standard protocols, as described in the “National Field Manual for the Collection of Water-Quality Data” (U.S. Geological Survey, variously dated), were followed for decontaminating equipment and collecting and processing groundwater samples except as noted in this section. Because of slow recharge rates, the groundwater-quality properties sampled at each well were dependent on the volume of water available in a given well. Because of these limitations, the order of sample collection was modified from standard USGS sampling protocols to ensure that samples for prioritized groundwater-quality properties were collected first. Samples were collected in the following order: microbial community samples, volatile organic compounds (VOCs), semivolatile organic compounds (SVOCs), trace elements, methane (because of its lower photochemical reactivity compared to other VOCs, methane is treated separately), and major ions. If a sample for a specific groundwater-quality constituent could not be collected because of volume limitations, a sample requiring less volume for the next group on the priority list was collected. When possible, Vacu-vials test kits (CHEMetrics, 2023) were used in the field to measure ferrous iron and sulfide concentrations. Groundwater-quality samples for VOCs, SVOCs, and trace elements were preserved, chilled on ice, and shipped within 24 hours to the U.S. Environmental Protection Agency (EPA) Region 6 Houston Laboratory in Houston, Texas, for analysis. Methods for the analysis of VOCs, SVOCs, and trace elements are documented in a series of EPA reports (U.S. Environmental Protection Agency, 2014, 2017, 2018a, 2018b). Samples for major ions (including nitrate, nitrite, and sulfate) were filtered by using a 0.45-micron pore size filter, chilled on ice, and shipped within 24 hours to the USGS National Water Quality Laboratory in Lakewood, Colorado, for analysis. Methods for the analysis of major ions are documented in Fishman and Friedman (1989) and Patton and Kryskalla (2011). Samples for methane were chilled on ice and submitted at the end of each sampling week to the SGS North America, Inc., laboratory in Orlando, Florida. Methods for the analysis of methane are documented in Hudson (2004). Samples for microbial community analysis were frozen and shipped to Microbiome Insights, Inc. in Vancouver, British Columbia, Canada, for sequencing of the 16S ribosomal ribonucleic acid (16S rRNA) gene to obtain abundance estimates of the microbial community. Community sequence data were processed by the Microbiome Insights, Inc. laboratory by using an Illumina MiSeq sequencing platform (Kozich and others, 2013) and the mothur software package (Schloss and others, 2009). Classification was completed using the SILVA 138 reference database (Quast and others, 2012). U.S. Geological Survey (variously dated) Puls and Barcelona (1996) In-Situ Inc. (2023) Hach (2023) CHEMetrics (2023) Patton and Kryskalla (2011) Fishman and Friedman (1989) U.S. Environmental Protection Agency (2018a) U.S. Environmental Protection Agency (2018b) U.S. Environmental Protection Agency (2017) U.S. Environmental Protection Agency (2014) Hudson (2004) Kozich and others (2013) Schloss and others (2009) Quast and others (2012) 202210 Microbial community samples were isolated by using an MO BIO’s PowerMag® Soil DNA Isolation Kit (MO BIO Laboratories, Inc., 2014) and extracted by using a KingFisher sample purification system (ThermoFisher Scientific, 2023). Bacterial 16S RNA genes were PCR-amplified with dual-barcoded primers targeting the V4 region of the 16S gene following protocols in Kozich and others (2013). Amplicons were sequenced with an Illumina MiSeq™ sequencer (Illumina, 2022) by using a MiSeq™ Reagent Kit v3. Sequences were processed by using the mothur software package (version 1.44.1) (Schloss and others, 2009) which contains functions to trim, screen, and align sequences, calculate distance, and assign sequences to operational taxonomic units. Sequence processing protocols are described in Kozich and others (2013) and in the mothur MiSeq Standard Operating Procedures (mothur, 2023). Sequences were clustered into 97%-similarity operational taxonomic units taxonomically and classified by using Silva v. 138 as the reference database (Quast and others, 2012). Raw sequencing files are available in the National Library of Medicine Sequence Read Archive (Leinonen and others, 2011) through accession number PRJNA1024942. The potential for contamination during sample analysis was assessed by co-sequencing the DNA amplified from samples and by processing a negative control following the same extraction and sequencing procedures as followed to process the environmental samples. A positive control consisting of cloned sulfur-oxidizing bacteria (SUP05) DNA, was also included. Operational taxonomic unit were considered contaminants and removed if their mean abundance in controls reached or exceeded 25 percent of their mean abundance in environmental samples. MO BIO Laboratories Inc. (2014) ThermoFisher Scientific (2023) Illumina (2022) Kozich and others (2013) Quast and others (2012) Schloss and others (2009) Leinonen and others (2011) mothur (2023) 202211 0.00001 0.00001 Decimal degrees North American Datum of 1983 (NAD 83) Geodetic Reference System 1980 6378137 298.257222 Wilcox_QW_Env.csv Comma Separated Value (CSV) file containing environmental results from water-quality samples collected from groundwater at the Wilcox Oil Company Superfund site. Producer Defined USGS_ID U.S. Geological Survey site number Producer Defined U.S. Geological Survey site number assigned to the specified well USGS_name U.S. Geological Survey site name Producer Defined U.S. Geological Survey site name assigned to the specified well Short_name Well short name Producer Defined Short name assigned to the specified well Latitude Latitude of the specified well Producer Defined 35.839404 35.843136 Decimal degrees; NAD 1983 Longitude Longitude of the specified well Producer Defined -96.386954 -96.382724 Decimal degrees; NAD 1983 Sample date-time Date and time groundwater sample was collected or field property measured Producer Defined 10/10/2022 09:52:00 11/03/2022 10:00:00 Central Daylight Time WQ_property_group Water-quality property group associated with a suite of compounds identified in the "WQ_property" field for the record in question Producer Defined Name of water-quality property group associated to the measured water-quality property WQ_property Water-quality property Producer Defined Name of individual water-quality property measured Rmk Remark code associated with "Value" field for the record in question Producer Defined -- No associated remark code Producer defined < Less than Producer defined E Estimated Producer defined > Greater than Producer defined w High variability, questionable precision and accuracy Producer defined Value Value of measured water-quality property Producer Defined -209 868000 RL Reporting limit for measured water-quality property Producer Defined -- No associated reporting limit Producer defined 0.00005 400000 Units Unit of measure associated with "Value" and "RL" attributes Producer Defined mV millivolts Producer defined units standard units Producer defined µS/cm at 25°C microsiemens per centimeter at 25 degrees Celsius Producer defined °C degrees Celsius Producer defined FNU Formazin Nephelometric Units Producer defined µg/L micrograms per liter Producer defined mg/L milligrams per liter Producer defined mg/L as CaCO3 milligrams per liter as calcium carbonate Producer defined Wilcox_QW_Replicates.csv Comma Separated Value (CSV) file containing replicate results from water-quality samples collected from groundwater at the Wilcox Oil Company Superfund site. Producer Defined USGS_ID U.S. Geological Survey site number Producer Defined U.S. Geological Survey site number assigned to the specified well USGS_name U.S. Geological Survey site name Producer Defined U.S. Geological Survey site name assigned to the specified well Short_name Well short name Producer Defined Short name assigned to the specified well Latitude Latitude of the specified well Producer Defined 35.841384 35.841863 Decimal degrees; NAD 1983 Longitude Longitude of the specified well Producer Defined -96.386477 -96.382964 Decimal degrees; NAD 1983 Sample_date-time Date and time groundwater sample was collected or field property measured Producer Defined 10/10/2022 14:45:00 11/01/2022 15:00:00 Central Daylight Time WQ_property_group Water-quality property group associated with a suite of compounds identified in the "WQ_property" field for the record in question Producer Defined Name of water-quality property group associated to the measured water-quality property WQ_property Water-quality property Producer Defined Name of individual water-quality property measured Rmk Remark code associated with "Value" field for the record in question Producer Defined -- No associated remark code Producer defined < Less than Producer defined E Estimated Producer defined Value Value of measured water-quality property Producer Defined 0.001 55800 RL Reporting limit for measured water-quality property Producer Defined 0.0005 1500.0 Units Unit of measure associated with "Value" and "RL" attributes Producer Defined µg/L micrograms per liter Producer defined mg/L milligrams per liter Producer defined Wilcox_QW_Blanks.csv Comma Separated Value (CSV) file containing equipment- and field-blank results. Producer Defined Blank_type Type of blank sample Producer Defined Equipment blank Samples that are intended to demonstrate that sample collection and processing equipment and equipment-cleaning procedures are not sources of contamination Producer defined Trip blank Samples that are intended to demonstrate that the transport and shipment of samples are not sources of contamination Producer defined Sample_date-time Date and time sample was collected Producer Defined 10/10/2022 09:30:00 11/02/2022 09:00:00 Central Daylight Time WQ_property_group Water-quality property group associated with a suite of compounds identified in the "WQ_property" field for the record in question Producer Defined Name of water-quality property group associated to the measured water-quality property WQ_property Water-quality property Producer Defined Name of individual water-quality property measured Rmk Remark code associated with "Value" field for the record in question Producer Defined -- No associated remark code Producer defined < Less than Producer defined Value Value of measured water-quality property Producer Defined 0.0005 1000 RL Laboratory reporting limit for measured water-quality property Producer Defined 0.0005 1000.0 Units Unit of measure associated with "Value" and "RL" attributes Producer Defined µg/L micrograms per liter Producer defined mg/L milligrams per liter Producer defined Wilcox_Taxonomy.csv Comma Separated Value (CSV) file containing the SILVA taxonomy of identified bacteria in groundwater samples at the Wilcox Oil Company Superfund site. Producer Defined Bacteria_ID Identification number assigned to bacteria identified in groundwater samples Producer Defined 1 359 Kingdom Kingdom of the bacteria indicated in the "Bacteria_ID" field Producer Defined Bacteria Organism kingdom Producer defined Phylum Phylum of the bacteria indicated in the "Bacteria_ID" field Producer Defined Free text Organism kingdom Producer defined Class Class of the bacteria indicated in the "Bacteria_ID" field Producer Defined Free text Organism class Producer defined Order Order of the bacteria indicated in the "Bacteria_ID" field Producer Defined Free text Organism order Producer defined Family Family of the bacteria indicated in the "Bacteria_ID" field Producer Defined Free text Organism family Producer defined Genus Genus of the bacteria indicated in the "Bacteria_ID" field Producer Defined Free text Organism genus Producer defined Wilcox_BacteriaPhyla_Abundance.csv Comma Separated Value (CSV) file containing bacterial abundance results categorized by phyla from water-quality samples collected from groundwater at the Wilcox Oil Company Superfund site. Producer Defined USGS_ID U.S. Geological Survey site number Producer Defined U.S. Geological Survey site number assigned to the specified well USGS_name U.S. Geological Survey site name Producer Defined U.S. Geological Survey site name assigned to the specified well Short_name Well short name Producer Defined Short name assigned to the specified well Latitude Latitude of the specified well Producer Defined 35.839404 35.843136 Decimal degrees; NAD 1983 Longitude Longitude of the specified well Producer Defined -96.386954 -96.382605 Decimal degrees; NAD 1983 Date_time Date and time groundwater sample was collected Producer Defined 2022-10-10 15:00:00 2022-11-03 15:00:00 Central Daylight Time Phylum Phylum name Producer Defined Free text Organism phylum. If bacteria could not be classified at this taxonomic level, the lowest taxonomic resolution identified, followed by the term "_unclassified", is indicated. Producer defined Relative_abundance Relative abundance of the bacteria indicated in the "Phylum" field Producer Defined 0.00014 0.96744 Wilcox_BacteriaClass_Abundance.csv Comma Separated Value (CSV) file containing bacterial abundance results categorized by class from water-quality samples collected from groundwater at the Wilcox Oil Company Superfund site. Producer Defined USGS_ID U.S. Geological Survey site number Producer Defined U.S. Geological Survey site number assigned to the specified well USGS_name U.S. Geological Survey site name Producer Defined U.S. Geological Survey site name assigned to the specified well Short_name Well short name Producer Defined Short name assigned to the specified well Latitude Latitude of the specified well Producer Defined 35.839404 35.843136 Decimal degrees; NAD 1983 Longitude Longitude of the specified well Producer Defined -96.386954 -96.382605 Decimal degrees; NAD 1983 Date_time Date and time groundwater sample was collected Producer Defined 2022-10-10 15:00:00 2022-11-03 15:00:00 Central Daylight Time Class Class name Producer Defined Free text If bacteria could not be classified at this taxonomic level the lowest taxonomic resolution identified, followed by the term "_unclassified", is indicated. Producer defined Relative_abundance Relative abundance of the bacteria indicated in the "Class" field Producer Defined 0.00012 0.96419 Wilcox_BacteriaOrder_Abundance.csv Comma Separated Value (CSV) file containing bacterial abundance results categorized by order from water-quality samples collected from groundwater at the Wilcox Oil Company Superfund site. Producer Defined USGS_ID U.S. Geological Survey site number Producer Defined U.S. Geological Survey site number assigned to the specified well USGS_name U.S. Geological Survey site name Producer Defined U.S. Geological Survey site name assigned to the specified well Short_name Well short name Producer Defined Short name assigned to the specified well Latitude Latitude of the specified well Producer Defined 35.839404 35.843136 Decimal degrees; NAD 1983 Longitude Longitude of the specified well Producer Defined -96.386954 -96.382605 Decimal degrees; NAD 1983 Date_time Date and time groundwater sample was collected Producer Defined 2022-10-10 15:00:00 2022-11-03 15:00:00 Central Daylight Time Order Order name Producer Defined Free text Organism order. If bacteria could not be classified at this taxonomic level the lowest taxonomic resolution identified, followed by the term "_unclassified", is indicated. Producer defined Relative_abundance Relative abundance of the bacteria indicated in the "Order" field Producer Defined 0.00012 0.78851 Wilcox_BacteriaFamily_Abundance.csv Comma Separated Value (CSV) file containing bacterial abundance results categorized by family from water-quality samples collected from groundwater at the Wilcox Oil Company Superfund site. Producer Defined USGS_ID U.S. Geological Survey site number Producer Defined U.S. Geological Survey site number assigned to the specified well USGS_name U.S. Geological Survey site name Producer Defined U.S. Geological Survey site name assigned to the specified well Short_name Well short name Producer Defined Short name assigned to the specified well Latitude Latitude of the specified well Producer Defined 35.839405 35.843136 Decimal degrees; NAD 1983 Longitude Longitude of the specified well Producer Defined -96.386954 -96.382605 Decimal degrees; NAD 1983 Date_time Date and time groundwater sample was collected Producer Defined 2022-10-10 15:00:00 2022-11-03 15:00:00 Central Daylight Time Family Family name Producer Defined Free text Organism family. If bacteria could not be classified at this taxonomic level the lowest taxonomic resolution identified, followed by the term "_unclassified", is indicated. Producer defined Relative_abundance Relative abundance of the bacteria indicated in the "Family" field Producer Defined 0.00012 0.67893 Wilcox_BacteriaGenus_Abundance.csv Comma Separated Value (CSV) file containing bacterial abundance results categorized by genus from water-quality samples collected from groundwater at the Wilcox Oil Company Superfund site. Producer Defined USGS_ID U.S. Geological Survey site number Producer Defined U.S. Geological Survey site number assigned to the specified well USGS_name U.S. Geological Survey site name Producer Defined U.S. Geological Survey site name assigned to the specified well Short_name Well short name Producer Defined Short name assigned to the specified well Latitude Latitude of the specified well Producer Defined 35.839405 35.843136 Decimal degrees; NAD 1983 Longitude Longitude of the specified well Producer Defined -96.386954 -96.382605 Decimal degrees; NAD 1983 Date_time Date and time groundwater sample was collected Producer Defined 2022-10-10 15:00:00 2022-11-03 15:00:00 Genus Genus name Producer Defined Free text Organism genus. If bacteria could not be classified at this taxonomic level the lowest taxonomic resolution identified, followed by the term "_unclassified", is indicated. Producer defined Relative_abundance Relative abundance of the bacteria indicated in the "Genus" field Producer Defined 0.00012 0.67893 Files pertaining to this dataset are listed as follows: Wilcox_BacteriaClass_Abundance.csv - Comma Separated Value (CSV) file containing bacterial abundance results categorized by class from water-quality samples collected from groundwater at the Wilcox Oil Company Superfund site. Wilcox_BacteriaFamily_Abundance.csv - Comma Separated Value (CSV) file containing bacterial abundance results categorized by family from water-quality samples collected from groundwater at the Wilcox Oil Company Superfund site. Wilcox_BacteriaGenus_Abundance.csv - Comma Separated Value (CSV) file containing bacterial abundance results categorized by genus from water-quality samples collected from groundwater at the Wilcox Oil Company Superfund site. Wilcox_BacteriaOrder_Abundance.csv - Comma Separated Value (CSV) file containing bacterial abundance results categorized by order from water-quality samples collected from groundwater at the Wilcox Oil Company Superfund site. Wilcox_BacteriaPhyla_Abundance.csv - Comma Separated Value (CSV) file containing bacterial abundance results categorized by phyla from water-quality samples collected from groundwater at the Wilcox Oil Company Superfund site. Wilcox_QW_Blanks.csv - Comma Separated Value (CSV) file containing equipment- and field-blank results. Wilcox_QW_Env.csv - Comma Separated Value (CSV) file containing environmental results from water-quality samples collected from groundwater at the Wilcox Oil Company Superfund site. Wilcox_QW_Replicates.csv - Comma Separated Value (CSV) file containing replicate results from water-quality samples collected from groundwater at the Wilcox Oil Company Superfund site. Wilcox_Taxonomy.csv - Comma Separated Value (CSV) file containing the SILVA taxonomy of identified bacteria in groundwater samples at the Wilcox Oil Company Superfund site. Wilcox_Geochemistry_meta.xml - Metadata file containing data quality information, processing steps, entity and attributes information, and other pertinent information. Wilcox_Geochemistry_meta.xml GS ScienceBase U.S. Geological Survey mailing address

Denver Federal Center, Building 810, Mail Stop 302

Denver CO 80225 United States 1-888-275-8747 sciencebase@usgs.gov Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. Digital Data https://doi.org/10.5066/P9JM8J46 None 20250626 Zulimar Lucena U.S. Geological Survey, SOUTHEAST REGION Hydrologist mailing address

19241 David Memorial Drive

Shenandoah TX 77385 US 936-271-5350 936-271-5399 zlucena@usgs.gov FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata FGDC-STD-001.1-1999