Heather Gretka

Risk Assessor at Advisian
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Contact Information
us****@****om
(386) 825-5501
Location
Atlanta, Georgia, United States, US

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Credentials

  • R.P.Bio
    College of Applied Biology

Experience

    • Australia
    • Business Consulting and Services
    • 700 & Above Employee
    • Risk Assessor
      • Jul 2022 - Present

    • United Kingdom
    • Environmental Services
    • 700 & Above Employee
    • Risk Assessor
      • Oct 2020 - Jun 2022

      – Provide scientific expertise and prepare HHERAs for contaminated sites under the BC Contaminated Sites Regulation (BC CSR) and federal guidance (Health Canada, Canadian Council of Ministers of the Environment) – Prepare HHERAs to support the fulfillment of “High Risk Requirements” imposed by ENV due to concentrations of contaminants in environmental media exceeding BC CSR Protocol 11 upper cap concentrations – Responsible for the development, management and preparation of proposals, project scopes, budgets, and deliverables – Database management using ESDat and excel– Conduct statical analysis using R and ProUCL statistical software, including graphing data, t-tests, ANOVAs, bootstrap methods, applying confidences intervals, parametric and nonparametric correlation, multiple regression modeling, and trend analysis–Complete work for various governmental bodies including Public Services and Procurement Canada (PSPC), Department of National Defence (DND), Defence Construction Canada (DCC), Transport Canada, BC Hydro and Power Authority (BC Hydro), Government of Nunavut, and Metro Vancouver

    • United States
    • Civil Engineering
    • 700 & Above Employee
    • Environmental Risk Assessor
      • Sep 2016 - Sep 2020

      – Responsible for planning, coordinating and reporting on a variety of projects involving contaminated sites, toxicology, wildlife, ecosystems, vegetation, and species at risk – Responsible for the preparation of quantitative HHERAs designed to assess risks to human (including subsistence harvesting by First Nations) and ecological receptors posed by contaminated sites– Synthesizes and interprets surface water, sediment, soil, and toxicological data using statistics– Prepares budgets for large scale environmental programs (e.g. delineation of contamination on industrial sites).– Develops internal best work practices and protocols for field sampling techniques– Familiar with federal and provincial environmental legislation concerning contaminated sites and environmental assessments– Provides mitigation and rehabilitation recommendations, and advises on monitoring programs to promote sustainable development– Engages with project stakeholders (e.g. government officials, First Nations, community groups) to communicate project initiatives and integrate feedback into project planning– Conducts field surveys involving inventorying biota and sampling environmental media – Field crew lead o Trains and supports field staff on implementing surveying and sampling techniques o Improves operations by assigning team members tasks best suited to their skill-set o Encourages teamwork and cooperation among crew members o Uses problem solving and sound judgment when plans required revision o Collaborates with local First Nations to acquire First Nations field assistants

    • Wildlife Biologist
      • Sep 2014 - Sep 2016

      – Conducts Terrestrial Ecosystem Mapping (TEM) for projects throughout north-central BC – Develops wildlife habitat suitability index (HSI) models based on TEM for key indicators species– Conducts field surveys to establish baseline conditions of the natural environment by inventorying biota o Wildlife surveys: amphibian, herptile, minnow trapping, electrofishing, shrew salvage, and breeding bird surveys, benthic invertebrate toxicity testing, and wildlife habitat assessments o Vegetation surveys: vegetation assessments, native grassland inventory, and invasive plant surveys– Field crew lead o Uses problem solving and sound judgment when plans required revision o Ensure projects are conducted in a safe and timely manner o Encourages crew members to communicate opinions and questions to facilitate teamwork o Improves operations by assigning team members tasks best suited to their skill set o Collaborates with local First Nations to acquire First Nations field assistants– Responsible for project health and safety via Task Hazard Analysis - a procedure used to identify hazards and determine control measures to eliminate or minimize risks of the identified hazards

    • Teaching Assistant – Physical Geography
      • Jan 2012 - Jan 2013

      o Taught labs on various topics including global climates, hydrology and water resources, geomorphology and natural hazards, and biogeographyo Demonstrated field work techniqueso Provided general support and one-on-one assistance for pupilso Evaluated laboratory reports and held office hours to ensure students understood course concepts o Taught labs on various topics including global climates, hydrology and water resources, geomorphology and natural hazards, and biogeographyo Demonstrated field work techniqueso Provided general support and one-on-one assistance for pupilso Evaluated laboratory reports and held office hours to ensure students understood course concepts

    • United States
    • Civil Engineering
    • 700 & Above Employee
    • Ecologist
      • Oct 2008 - Dec 2011

      - Responsible for writing analytical baseline study reports for major mining, and oil and gas projects in northern BC - Conducted Terrestrial Ecosystem Mapping (TEM) for projects throughout north-central BC.- Developed wildlife habitat suitability models based on TEM - Improved service to clients by creating innovative report templates to expedite report production - Worked collaboratively with clients to understand their needs and to produce meaningful reports - Conducted background ecological and geological research on the impacts large scale projects have on the natural environment by seeking out information from government, academic, and private sources - Conducted field surveys to establish baseline conditions of the natural environment by inventorying biota o Wildlife surveys: amphibian and bird surveys, and wildlife habitat assessments o Vegetation surveys: vegetation assessments, native grassland inventory, invasive plant surveys- Field crew lead o Encouraged teamwork and cooperation among crew members o Used problem solving and sound judgment when plans required revision o Ensured project was conducted in a safe and timely manner o Improved operations by assigning team members tasks that best suited their skill set o Collaborated with local First Nations to acquire First Nations field assistants- Project managed small ecological projects in Ontario; including budgeting, client relations, time management, and producing high quality reports- Experienced in writing Environmental Impact Studies and Environmental Assessments for small and large scale projects

    • Environmental Technician
      • May 2005 - Aug 2007

      - Monitored watersheds for stream flows, soil temperature, soil moisture and water table levels- Assisted in terrestrial and aquatic site assessments including: bird, amphibian, vegetation, electro-fishing, stream assessment and benthic invertebrate surveys- Responsible for preparation of field equipment and locating sites within a given region using aerial photos and GIS maps- Wrote reports (Environmental Impact Statements and Natural Heritage Inventory Studies) and developed maps and figures with GIS specialists

Education

  • Ulster University
    Postgraduate Diploma, Environmental Toxicology and Pollution Monitoring
    2016 - 2018
  • University of Victoria
    Master of Science (M.Sc.), Biology
    2012 - 2015
  • Western University
    Bachelor of Science (Hons.), Biology
    2004 - 2008

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