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Site Characterization, Monitoring, and Modeling Research


... hard-rock mining (e.g., As, Se, Cr, Sn, Hg) determine mobility, availability, and ... Inter-Agency study initiated in 1999. EPA, Army COE, OSM, FWS, WVDEP ... – PowerPoint PPT presentation

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Title: Site Characterization, Monitoring, and Modeling Research

Site Characterization, Monitoring, and Modeling
  • National Exposure Research Laboratory (NERL)
  • U.S. EPA, Office of Research and Development
  • October 9, 2002

Mission and Strategy NERL
  • Mission Develop, evaluate, apply, and integrate
    exposure methods, measurements, data bases, and
    models to reduce uncertainty for exposure
    assessment, risk assessment, and risk management.
  • Waste Thrust Areas
  • Superfund site characterization, demonstration,
    and technical support
  • Oil Spills oil and dispersant fate and
    transport modeling
  • LUST fate and transport modeling
  • RCRA multimedia, multipathway exposure and risk
    assessment models

Characterization Monitoring Branch
  • Superfund Innovative Technology Evaluation (SITE)
  • FY02/3 Hg Analyzers in Soil
  • Environmental Technology Verification (ETV)
  • FY96 FP-XRF Analyzers
  • Technology Support Center
  • By Region/Program Office request
  • Groundwater Research
  • Improve sampling and samplers

Speciation analysis
  • Environmental Chemistry Branch develops, applies,
    and transfers to EPA Regions and other clients
    practical speciation methods.
  • Chemical form (species) of many contaminants from
    hard-rock mining (e.g., As, Se, Cr, Sn, Hg)
    determine mobility, availability, and toxicity.
  • Accurate risk assessments and cost-effective
    remediation/mitigation approaches result from
    characterizing individual species instead of
    total metals.
  • Contact Ed Heithmar, (702) 798-2626

Immunoassay and Biosensor Research
  • Disposable electrode for the determination of
    hexavalent chromium
  • 1 for the electrode
  • Concern is expensive lab-based instrument
    attached to electrode
  • Goal is to get field unit to work with electrode
  • Contact Kim Rogers, (702)-798-2299

Environmental Impact Study of Mountaintop Mining
and Valley Fill Operations in West Virginia
  • Inter-Agency study initiated in 1999
  • Region III initiated the aquatic impacts study to
    support the overall EIS
  • Aquatic impacts study objectives
  • Is the biological condition of streams in areas
    with MTM/VF operations degraded compared to the
    condition of streams in un-mined areas?
  • Are there additive biological impacts in
    streams where multiple fills are located?

Environmental Impact Study of Mountaintop Mining
and Valley Fill Operations in West Virginia
  • ORD/NERL Involvement
  • Assembled database of Region III, Penn State and
    mining company data
  • Analyzed fish and macroinvertebrate data
    separately to address study objectives
  • Provided briefing on study conclusions to ORD AA,
    EIS Steering Committee and Region III
  • Provide report to EIS steering committee for
    inclusion in the overall EIS (October 2002)
  • Contact Florence Fulk, (513) 569-7379

Mining Related Projects EERD
  • Toxicity Testing (water and sediment), Molecular
    methods (Gene Expression Metallothione), Fish
    Tissue and Bioassessment Approaches to assessing
    Mine Impacts on Receiving Streams SITE Projects
    Clear Creek, CO, Rio Tinto, NV.
  • Toxicity Testing Assessment of Mine Waste
    Technology Projects and SITE Projects 5 Mines in
    MT, Summitville CO.
  • NERL Representative on National Mining Team.
  • Contact Jim Lazorchak, (513) 569-7076

Mining Related Projects EERD
  • U.S. EPA Hardrock Mining 2002 Conference,
    Westminster, Colorado, May 7 - 9, 2002
  • Presentations
  • http//
  • Relationships Between Exceedences of Metals
    Criteria and Community Metrics in Mining Impacted
    Streams by Griffith, MB, Lazorchak, JM, and
    Herlihy, AT
  • Toxicity Approaches to Assessing Mining Impacts
    and Minewaste Treatment Effectiveness by
    Lazorchak, JM, Smith, ME, Bates, E, and Wilmoth,

Mining Related Publications EERD
  • Comparative application of indices of biotic
    integrity based on periphyton, macroinvertebrates,
    and fish to southern Rocky Mountain streams.
    2002. Griffith, Hill, McCormick, Kaufmann,
    Herlihy, and Sele. 2002. J North Ameri.
    Benthol Soc. In Prep.
  • Relationships between exceedences of metals
    criteria and community metrics in mining impacted
    streams. 2002. Griffith, Lazorchak, and
    Herlihy. J Environ. Tox. Chem. In Prep.
  • Rainbow Trout Oncorhynchus mykiss and Brook Trout
    Salvelinus fontinalis 7-day Survival and Growth
    Test Method 2003. Lazorchak, Smith,
  • Multivariate analyses of periphyton assemblages
    in relation to environmental gradients in
    Colorado Rocky Mountain Streams. Griffith,
    Hill,., Herlihy, .and Kaufman. 2002. J
    Phycology. Vol 38 83-95.
  • Analyses of macroinvertebrate assemblages in
    relation to environmental gradients in Rocky
    Mountain 2001 Griffith, Kaufman, Herlihy and
    Hill. Eco Appl. 11, 489 505.
  • The effects of elevated metals on benthic
    community metabolism in a Rocky Mountain stream.
    1997 Hill, Lazorchak, McCormick Willingham.
    Environmental Pollution 95, 183-190.
  • Mining impacts on fish assemblages in the Eagle
    and Arkansas Rivers, Colorado. 1994. Mccormick,
    F, Hill, B., Parrish, L, Willingham, W. Region 8
    Denver. J Freshwater Eco. Vol 9, pgs 175 179.

Modeling Research
  • Site-specific version of the original HWIR
    (Hazardous Waste Identification Rule) version of
    the 3MRA (Multimedia, Multi-pathway,
    Multi-receptor Risk Assessment) modeling system.
  • The new version will allow convenient input of
    site-specific parameter information for a variety
    of applications, some of which are those common
    to mine sites. Will also include an automated
    front end that inserts data from the 200 sites we
    use in the HWIR national problem to do the Monte
    Carlo mode outcome distributions.
  • Could be done this FY depending on results of an
    SAB review of the modeling system.
  • Contact Dave Brown, ERD-Athens, (706) 355-8300

For Further Information Contact
  • Jane Denne, Acting Assistant Laboratory Director
    for Waste, (702) 798-2655,
  • Brian Schumacher, Chief of the Characterization
    and Monitoring Branch, (702) 798-2242
  • Ed Heithmar, Acting Chief of the Environmental
    Chemistry Branch, (702) 798-2626
  • Kim Rogers, Acting Chief of the Exposure Dose
    Research Branch, (702) 798-2299
  • Don Garofalo, EPIC, (703) 648-4285
  • Florence Fulk, EERD-Cincinnati, (513) 569-7379
  • Jim Lazorchak, EERD-Cincinnati, (513) 569-7076
  • Dave Brown, Chief of the Regulatory Support
    Branch, (706) 355-8300 or Jim Weaver, (706)
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