Becky Hedden Talbot

Nonpoint Source & TMDL Water Quality Analyst at Oregon Department of Environmental Quality
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Contact Information
us****@****om
(386) 825-5501
Location
Portland, Oregon Metropolitan Area

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Experience

    • United States
    • Environmental Services
    • 100 - 200 Employee
    • Nonpoint Source & TMDL Water Quality Analyst
      • Nov 2022 - Present

    • Water Quality Analyst (temporary position)
      • Dec 2021 - Oct 2022

      • Spearheaded the development of a Quality Assurance Project Plan (QAPP) for a turbidity TMDL, including identifying pertinent water quality standards and narratives, creating maps, and compiling summaries of available data (e.g., flow data, turbidity measurements, paired turbidity-TSS data)• Researched and executed a non-parametric approach to a turbidity-TSS relationship when parametric regression model checks failed model assumptions, and used the resulting model to translate turbidity measurements to TSS values• Calculated estimated flow values for Schooner Creek and assisted in the development of a flow duration curve, with current efforts focusing on the development of a corresponding load duration curve• Created maps comparing Schooner Creek and Siletz drinking water source areas based on lithology, land use, hydrologic soil group, and ecoregion• Updated a base hydrography layer in ArcMap, performing detailed QA/QC procedures to ensure consistency with the current version of the National Hydrography Dataset• Created a series of 11 maps in ArcGIS Pro for the Powder River basin, including base maps detailing regional hydrography, cities, and monitoring stations as well as maps displaying lithology, 303(d) listings for bacteria, hydrologic soil groups, and land use• Researched a Bayesian approach for a dissolved oxygen TMDL, including a literature review, with current efforts focusing on the development of a conceptual framework to address processes from a Bayesian standpoint Show less

    • United States
    • Higher Education
    • 700 & Above Employee
    • Microplastics Laboratory Technician
      • Sep 2022 - Present

      • Conduct organic matter digestion of wild bristle moss samples using an iron sulfate solution and hydrogen peroxide • Post digestion, isolate microplastic particles onto filter paper using a 20 micron sieve and a vacuum filtration apparatus • Examine filter papers under a dissecting microscope to identify microplastic particles • Conduct organic matter digestion of wild bristle moss samples using an iron sulfate solution and hydrogen peroxide • Post digestion, isolate microplastic particles onto filter paper using a 20 micron sieve and a vacuum filtration apparatus • Examine filter papers under a dissecting microscope to identify microplastic particles

    • United States
    • Higher Education
    • 700 & Above Employee
    • Graduate Student/Graduate Research Assistant
      • Sep 2019 - Dec 2021

      • Investigated microplastics in two Portland watersheds with varying degrees of urban development, and evaluated seasonal variability in microplastic concentrations with different flow regimes• Collected triplicate samples using a plankton tow net from 10 sites along the Clackamas River and Johnson Creek in both the dry and wet seasons• Conducted laboratory analyses to isolate microplastics on filter paper for microscope analysis, including organic matter digestion with a potassium hydroxide solution, density separation using a hypersaline solution, and vacuum filtration• Identified microplastics on filter paper using a Leica dissecting microscope, photographed plastic particles, and recorded data regarding particle length and color• Utilized R and GIS to identify trends and evaluate relationships between microplastic concentrations and a range of spatial and temporal variables (e.g., land cover, slope, arterial road length, seasonality, antecedent precipitation, flow rate), and incorporated statistical analyses such as Kruskal-Wallis, Spearman’s rank, and principal component analyses• Collaborated with local agencies to secure funding, culminating in research presentations and concise technical reports Show less

    • Graduate Teaching Assistant
      • Sep 2019 - Jun 2021

      • Led three lab sections per quarter for a Physical Geography course and completed all grading• Assisted with grading for an online Global Water Issues & Sustainability course

    • Research Services
    • 700 & Above Employee
    • Hydrology Volunteer
      • Oct 2019 - Dec 2019

      • Assisted with a turbidity probe install on the Johnson Creek mainstem • Collected suspended sediment samples during storm events as part of an ongoing turbidity study • Assisted with water quality monitoring visits, including cleaning and calibrating a multiparameter Sonde sensor • Assisted with a turbidity probe install on the Johnson Creek mainstem • Collected suspended sediment samples during storm events as part of an ongoing turbidity study • Assisted with water quality monitoring visits, including cleaning and calibrating a multiparameter Sonde sensor

    • Research Services
    • 700 & Above Employee
    • Hydrology Volunteer
      • Jan 2017 - Mar 2019

      • Analyzed driller’s logs of NJ quad maps to identify depth to the first restrictive geologic layer as part of an infiltration basin analysis, and created a map using ArcGIS to display analysis progress • Created a data file in Google Earth identifying sites with elevated arsenic levels and mapped results in ArcGIS • Digitized portions of hydrogeologic maps and assisted in creating groundwater recharge and evapotranspiration maps of Turkana and Marsabit counties in Kenya • Updated a Microsoft Access database containing long-term water quality data from the Naval Air Warfare Center (NAWC) Research Site. Transferred data received in pdf format from local environmental consulting firms to a master Excel sheet, and prepared and imported data into the Access database • Assisted with water quality portal data harmonization for use in a national analysis and compared data from USGS NWIS database with data from the water quality portal • Observed groundwater sampling techniques and data collection/processing methodology during several trips in the field Show less

    • United States
    • Environmental Services
    • 1 - 100 Employee
    • Database Specialist/Development Assistant
      • Dec 2013 - Jun 2015

      • Created queries to analyze membership data and generated subsets of records for use in fundraising appeals • Provided detailed membership and financial reports as needed for the development and finance departments • Ensured database quality control • Created queries to analyze membership data and generated subsets of records for use in fundraising appeals • Provided detailed membership and financial reports as needed for the development and finance departments • Ensured database quality control

Education

  • Portland State University
    M.S. Geography, Spatial and seasonal variations of microplastic concentrations in Oregon’s freshwater
    2019 - 2022
  • Kenyon College
    Bachelor of Arts - BA, Psychology

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