1887

Abstract

Summary

We present a local flow model approach for the transport and the decay of a roughly 50 year old perchloroethylene contamination at a former dry cleaning facility at Kv. Färgaren in Kristianstad that sits above the largest aquifer in Sweden.

The study demonstrates an efficient workflow integrating ERT for conceptualising and calibrating a three dimensional transient, multi aquifer groundwater transport problem with a sequential first-order decay contamination where only limited sample data is available for calibration - i.e. non-ideal, real world conditions. The 3D hydraulic model geometry is based on information from ERT data. It was possible to map resistivity signatures correlated with boreholes to geological features with a high degree of accuracy. On the Färgaren site itself, a 3D IP inversion model displayed some IP effects that correlated with historical perchloroethylene source terms.

The simulations provide new information regarding the vulnerability of a critical groundwater resource, filling in knowledge gaps left by traditional sampling methods. It is concluded that there is potential for long term contamination of the regional sandstone aquifer, and that the plume front may already have reached its upper layers.

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/content/papers/10.3997/2214-4609.201902487
2019-09-08
2024-04-19
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References

  1. Aziz, C. E., & Newell, C. J.
    (2015, 02 20). BIOCHLOR Natural Attenuation Decision Support System User’s Manual Version 1.0. Retrieved from www.epa.gov: http://www.epa.gov/ada/download/
    [Google Scholar]
  2. ChapmanS., ParkerB., CherryJ., McdonaldS., GoldsteinK., FrederickJ., GermainD., CuttD., and WilliamsC.
    2013. Combined MODFLOW-FRACTRAN application to assess chlorinated solvent transport and remediation in fractured sedimentary rock. Remediation, Volume 23, Issue 3, 7–35.
    [Google Scholar]
  3. Clement, P.
    (1998). RT3D reaction module for modeling biodegradation coupled with NAPL dissolution processes. Draft - NAPL Dissolution Module, 1–6.
    [Google Scholar]
  4. Engdahl, D., Larsson, N., Follin, S., & Bank, A.
    (2011). Fördjupad riskbedömning och åtgärdsutredning, fd kemtvätt Färgaren 3. Stockholm: Hifab AB.
    [Google Scholar]
  5. Jeppson, H.
    (2000). Kristianstads vattenförsörjning. Förutsättningar - möjligheter - konsekvenser. Kristianstads kommun. Retrieved from http://grundvattenradet.se/rapporter/Kristianstads%20Vattenf%C3 %B6rs%C3%B6jning.pdf
    [Google Scholar]
  6. Johansen, F. R., and Dall-Jepsen, J.
    (2014). Färgaren 3 Resultatrapport - Detaljerade Miljötekniska Undersökningar. Lyngby: COWI A/S.
    [Google Scholar]
  7. Johansson, S., G.Fiandaca, and T.Dahlin
    , 2015, Influence of non-aqueous phase liquid configuration on induced polarization parameters: Conceptual models applied to a time-domain field case study: Journal of Applied Geophysics, 123, 295–309.
    [Google Scholar]
  8. Lumetzberger, M.
    (2014). 3-D and 2-D resistivity and IP mapping of geology and chlorinated aliphatics at Färgaren 3, Kristianstad. University of Copenhagen, Geosciences and Natural Resource Management. Copenhagen: University of Copenhagen.
    [Google Scholar]
  9. Martinsson, S., Johansson, M., and Sundlöf, B.
    (2013). Provpumpning Färgaren 3. Kristianstad: Tyréns AB.
    [Google Scholar]
  10. Parker, B. L., Chapman, S. W., & Cherry, J. A.
    (2010). Plume persistence in fractured sedimentary rock after source zone removal. Ground Water, 48, 799–803.
    [Google Scholar]
  11. Parker, B. L., Cherry, J. A., & Chapman, S. W.
    (2012). Discrete fracture network approach for studying contamination in fractured rock. AQUA Mundi, 3(2), 101–116. https://doi.org/10.4409/Am-052-12-0046
    [Google Scholar]
  12. RazafindratsimaS., GuérinR., BendjoudiH., De MarsilyG.
    2014. Hydrogeological modeling constraints provided by geophysical and geochemical mapping of a chlorinated ethenes plume in northern France Hydrogeology Journal. Hydrogeology Journal (2014) 22: 1433–1446.
    [Google Scholar]
  13. Ringberg, B.
    , 1991. Beskrivning till jordartskartan Kristianstad SO. Sveriges Geologiska Undersökning.
    [Google Scholar]
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