<?xml version="1.0" encoding="UTF-8"?><marc:collection xmlns:marc="http://www.loc.gov/MARC21/slim">
  <marc:record>
    <marc:leader>00000nam  2200000za 4500</marc:leader>
    <marc:controlfield tag="001">9.846584</marc:controlfield>
    <marc:controlfield tag="003">CaOODSP</marc:controlfield>
    <marc:controlfield tag="005">20241203113640</marc:controlfield>
    <marc:controlfield tag="007">cr |||||||||||</marc:controlfield>
    <marc:controlfield tag="008">171103s1997    onca|||fo    f000 0 eng d</marc:controlfield>
    <marc:datafield tag="040" ind1=" " ind2=" ">
      <marc:subfield code="a">CaOODSP</marc:subfield>
      <marc:subfield code="b">eng</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="043" ind1=" " ind2=" ">
      <marc:subfield code="a">n-cn---</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="086" ind1="1" ind2=" ">
      <marc:subfield code="a">En13-5/97-111E-PDF</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="100" ind1="1" ind2=" ">
      <marc:subfield code="a">Markle, J. M.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="245" ind1="1" ind2="2">
      <marc:subfield code="a">A model for slug tests conducted in vertically fractured media </marc:subfield>
      <marc:subfield code="h">[electronic resource] / </marc:subfield>
      <marc:subfield code="c">by J.M. Markle, K.S. Novakowski, and R.K. Rowe.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="260" ind1=" " ind2=" ">
      <marc:subfield code="a">[Burlington, Ont.] : </marc:subfield>
      <marc:subfield code="b">National Water Research Institute, </marc:subfield>
      <marc:subfield code="c">[1997].</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="300" ind1=" " ind2=" ">
      <marc:subfield code="a">32, [9 ] p. : </marc:subfield>
      <marc:subfield code="b">ill.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="490" ind1="1" ind2=" ">
      <marc:subfield code="a">NWRI contribution ; </marc:subfield>
      <marc:subfield code="v">97-111</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="500" ind1=" " ind2=" ">
      <marc:subfield code="a">"For submission to Water Resources Research".</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="500" ind1=" " ind2=" ">
      <marc:subfield code="a">"January 1997".</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>
    </marc:datafield>
    <marc:datafield tag="504" ind1=" " ind2=" ">
      <marc:subfield code="a">Includes bibliographical references.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="520" ind1="0" ind2=" ">
      <marc:subfield code="a">"In many clay environments in southern Ontario, hazardous waste facilities are sited because the clay is assumed to offer some protection to underlying water supplies. Most clays in southern Ontario, however, are pervaded by vertical fractures that form either due to dessication or through neo-tectonic forces. These fractures may be limited to the upper horizons of the clay or they may penetrate the entire clay formation. To properly estimate the potential for groundwater movement and contaminant migration through these fractures, accurate estimates of the hydraulic properties of the fractures are necessary. This paper describes the development and use of a mathematical model for the interpretation of a hydraulic test conducted where the measuring device intersects a vertical fracture. Estimates of error indicate that by not using this model for interpretation, significant error in the estimate of contaminant movement could be incurred. Thus, the EC issue addressed by this study is toxics in groundwater"--Management perspective.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="692" ind1="0" ind2="7">
      <marc:subfield code="2">gccst</marc:subfield>
      <marc:subfield code="a">Modelling</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="692" ind1="0" ind2="7">
      <marc:subfield code="2">gccst</marc:subfield>
      <marc:subfield code="a">Sediments</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="692" ind1="0" ind2="7">
      <marc:subfield code="2">gccst</marc:subfield>
      <marc:subfield code="a">Hydrogeology</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="700" ind1="1" ind2=" ">
      <marc:subfield code="a">Novakowski, Kent S.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="700" ind1="1" ind2=" ">
      <marc:subfield code="a">Rowe, R. K.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="710" ind1="1" ind2=" ">
      <marc:subfield code="a">Canada. </marc:subfield>
      <marc:subfield code="b">Environment Canada.</marc:subfield>
    </marc:datafield>
    <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. 97-111</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">1.69 MB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2017/eccc/En13-5-97-111-eng.pdf</marc:subfield>
    </marc:datafield>
  </marc:record>
</marc:collection>
