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    <marc:leader>00000nam  2200000za 4500</marc:leader>
    <marc:controlfield tag="001">9.867208</marc:controlfield>
    <marc:controlfield tag="003">CaOODSP</marc:controlfield>
    <marc:controlfield tag="005">20241203113645</marc:controlfield>
    <marc:controlfield tag="007">cr |||||||||||</marc:controlfield>
    <marc:controlfield tag="008">190117s2003    onc    #ot   f|0| 0 eng d</marc:controlfield>
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      <marc:subfield code="a">CaOODSP</marc:subfield>
      <marc:subfield code="b">eng</marc:subfield>
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      <marc:subfield code="a">eng</marc:subfield>
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      <marc:subfield code="a">n-cn---</marc:subfield>
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      <marc:subfield code="a">En13-5/03-178E-PDF</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="100" ind1="1" ind2=" ">
      <marc:subfield code="a">Wilkin, R. T.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="245" ind1="1" ind2="0">
      <marc:subfield code="a">Field measurement of geochemical redox parameters </marc:subfield>
      <marc:subfield code="h">[electronic resource] / </marc:subfield>
      <marc:subfield code="c">R. T. Wilkin and C. J. Ptacek.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="260" ind1=" " ind2=" ">
      <marc:subfield code="a">[Burlington, Ont.] : </marc:subfield>
      <marc:subfield code="b">Environment Canada, </marc:subfield>
      <marc:subfield code="c">[2003]</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="300" ind1=" " ind2=" ">
      <marc:subfield code="a">[16] p.</marc:subfield>
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    <marc:datafield tag="490" ind1="1" ind2=" ">
      <marc:subfield code="a">NWRI contribution ; </marc:subfield>
      <marc:subfield code="v">no. 03-178</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="500" ind1=" " ind2=" ">
      <marc:subfield code="a">Digitized edition from print [produced by Environment and Climate Change Canada].</marc:subfield>
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    <marc:datafield tag="504" ind1=" " ind2=" ">
      <marc:subfield code="a">Includes bibliographic references.</marc:subfield>
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    <marc:datafield tag="520" ind1=" " ind2=" ">
      <marc:subfield code="a">"Restoration of contarninated groundwater is frequently required at hazardous waste sites. Restoration efforts can involve active and passive techniques, including advanced pump-and-treat systems, in situ injection techniques to promote chemical or biochemical breakdown or stabilization of contaminants, and passive technique such as monitored natural attenuation and permeable reactive barriers. Most techniques for groundwater restoration involve monitoring changes in the groundwater chemistry, including changes in oxidation-reduction processes. This publication is a chapter in a US EPA document which summarizes recommendations by a team of experts on procedures and approaches for monitoring oxidation-reduction processes in groundwater. The specific chapter summarizes group consensus of techniques that are recommended for field measurement of redox sensitive parameters. The volume is geared toward scientists and engineers working at contaminated sites"--Management Perspective.</marc:subfield>
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    <marc:datafield tag="546" ind1=" " ind2=" ">
      <marc:subfield code="a">Introductory material in French and English.</marc:subfield>
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      <marc:subfield code="2">gccst</marc:subfield>
      <marc:subfield code="a">Groundwater</marc:subfield>
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      <marc:subfield code="2">gccst</marc:subfield>
      <marc:subfield code="a">Water pollution</marc:subfield>
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      <marc:subfield code="a">Ptacek, Carol Jane, </marc:subfield>
      <marc:subfield code="d">1959-</marc:subfield>
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      <marc:subfield code="a">Canada. </marc:subfield>
      <marc:subfield code="b">Environment Canada.</marc:subfield>
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    <marc:datafield tag="710" ind1="2" ind2=" ">
      <marc:subfield code="a">National Water Research Institute (Canada)</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="830" ind1="#" ind2="0">
      <marc:subfield code="a">NWRI contribution ;</marc:subfield>
      <marc:subfield code="v">no. 03-178.</marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.844121</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="856" ind1="4" ind2="0">
      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">1.15 MB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2019/eccc/En13-5-03-178-eng.pdf</marc:subfield>
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