{"id":1345,"date":"2026-05-12T21:47:37","date_gmt":"2026-05-12T21:47:37","guid":{"rendered":"https:\/\/books.gw-project.org\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/chapter\/exercise-2\/"},"modified":"2026-05-13T16:44:21","modified_gmt":"2026-05-13T16:44:21","slug":"exercise-2","status":"publish","type":"chapter","link":"https:\/\/books.gw-project.org\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/chapter\/exercise-2\/","title":{"raw":"Exercise 2","rendered":"Exercise 2"},"content":{"raw":"
\r\n
\r\n\r\nIt\u2019s your first day at your new job as a hydrogeologist and you are given the following map.\r\n\r\n<\/div>\r\n
\r\n\r\n\"\"\r\n\r\n<\/div>\r\n
\r\n\r\nGiven the data shown on the map:\r\n\r\n<\/div>\r\n
    \r\n \t
  1. Calculate the gradient between wells A and B and wells A and C.<\/li>\r\n \t
  2. Contour the water levels in the wells. Use 20\u2011meter intervals starting at 280\u00a0m\u00a0ASL. Do any values not fit the overall pattern? If so, identify and state why you excluded them (e.g., water level too low).<\/li>\r\n \t
  3. Using the contours, calculate the hydraulic gradient in the vicinity of the wells labeled A, B, and C. How does this gradient compare to the gradients you measured in part a)?<\/li>\r\n \t
  4. Give three possible reasons explaining the anomalous water level identified in part b). For each reason, describe what you would need to do or need to know to identify that reason as the culprit.<\/li>\r\n<\/ol>\r\n
    \r\n\r\nSolution for Exercise\u00a02<\/strong><\/span><\/a>\u2ba7\r\n\r\n<\/div>\r\n
    \r\n\r\nReturn to where text linked to Exercise\u00a02<\/strong><\/span><\/a>\u2ba5\r\n\r\n<\/div>\r\n<\/div>","rendered":"
    \n
    \n

    It\u2019s your first day at your new job as a hydrogeologist and you are given the following map.<\/p>\n<\/div>\n

    \n

    \"\"<\/p>\n<\/div>\n

    \n

    Given the data shown on the map:<\/p>\n<\/div>\n

      \n
    1. Calculate the gradient between wells A and B and wells A and C.<\/li>\n
    2. Contour the water levels in the wells. Use 20\u2011meter intervals starting at 280\u00a0m\u00a0ASL. Do any values not fit the overall pattern? If so, identify and state why you excluded them (e.g., water level too low).<\/li>\n
    3. Using the contours, calculate the hydraulic gradient in the vicinity of the wells labeled A, B, and C. How does this gradient compare to the gradients you measured in part a)?<\/li>\n
    4. Give three possible reasons explaining the anomalous water level identified in part b). For each reason, describe what you would need to do or need to know to identify that reason as the culprit.<\/li>\n<\/ol>\n
      \n

      Solution for Exercise\u00a02<\/strong><\/span><\/a>\u2ba7<\/p>\n<\/div>\n

      \n

      Return to where text linked to Exercise\u00a02<\/strong><\/span><\/a>\u2ba5<\/p>\n<\/div>\n<\/div>\n","protected":false},"author":8,"menu_order":85,"template":"","meta":{"pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"class_list":["post-1345","chapter","type-chapter","status-publish","hentry"],"part":1522,"_links":{"self":[{"href":"https:\/\/books.gw-project.org\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/wp-json\/pressbooks\/v2\/chapters\/1345","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/books.gw-project.org\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/books.gw-project.org\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/books.gw-project.org\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/wp-json\/wp\/v2\/users\/8"}],"version-history":[{"count":3,"href":"https:\/\/books.gw-project.org\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/wp-json\/pressbooks\/v2\/chapters\/1345\/revisions"}],"predecessor-version":[{"id":1865,"href":"https:\/\/books.gw-project.org\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/wp-json\/pressbooks\/v2\/chapters\/1345\/revisions\/1865"}],"part":[{"href":"https:\/\/books.gw-project.org\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/wp-json\/pressbooks\/v2\/parts\/1522"}],"metadata":[{"href":"https:\/\/books.gw-project.org\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/wp-json\/pressbooks\/v2\/chapters\/1345\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/books.gw-project.org\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/wp-json\/wp\/v2\/media?parent=1345"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/books.gw-project.org\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/wp-json\/pressbooks\/v2\/chapter-type?post=1345"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/books.gw-project.org\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/wp-json\/wp\/v2\/contributor?post=1345"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/books.gw-project.org\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/wp-json\/wp\/v2\/license?post=1345"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}