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      <marc:subfield code="a">Guidelines for Canadian drinking water quality : </marc:subfield>
      <marc:subfield code="b">guideline technical document : total coliforms.</marc:subfield>
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    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">Ottawa, ON : </marc:subfield>
      <marc:subfield code="b">Health Canada = Santé Canada, </marc:subfield>
      <marc:subfield code="c">2020.</marc:subfield>
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      <marc:subfield code="c">©2020</marc:subfield>
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      <marc:subfield code="a">Issued also in French under title: Recommandations pour la qualité de l'eau potable au Canada : document technique : les coliformes totaux.</marc:subfield>
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      <marc:subfield code="a">"Published : June 2020."</marc:subfield>
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      <marc:subfield code="a">Issued also in HTML format.</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references (pages 34-49).</marc:subfield>
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      <marc:subfield code="a">"Health Canada completed its review on the usefulness of total coliforms as part of a source-to-tap approach to producing microbiologically acceptable drinking water. This guideline technical document reviews and assesses available literature on the uses of total coliforms in drinking water quality management, including as indicators of groundwater vulnerability, the adequacy of disinfection, and changes in distribution system water quality"--Executive summary, page 1.</marc:subfield>
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      <marc:subfield code="a">Enterobacteriaceae.</marc:subfield>
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      <marc:subfield code="t">Recommandations pour la qualité de l'eau potable au Canada : </marc:subfield>
      <marc:subfield code="w">(CaOODSP)9.885292</marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
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      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2020/sc-hc/H144-8-2020-eng.pdf</marc:subfield>
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      <marc:subfield code="u">https://www.canada.ca/en/health-canada/services/publications/healthy-living/guidelines-canadian-drinking-water-quality-guideline-technical-document-total-coliforms.html</marc:subfield>
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