{"id":1352,"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-8\/"},"modified":"2026-05-13T03:34:08","modified_gmt":"2026-05-13T03:34:08","slug":"exercise-8","status":"publish","type":"chapter","link":"https:\/\/books.gw-project.org\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/chapter\/exercise-8\/","title":{"raw":"Exercise 8","rendered":"Exercise 8"},"content":{"raw":"<div id=\"exercise-8\" class=\"level1\">\r\n<div data-custom-style=\"First Paragraph\">\r\n\r\nPart 1: Two wells are completed in two different confined aquifers. All things are equal (e.g., same saturated thickness, storage parameters, well diameter, screened intervals, well efficiency, and so on) except that the transmissivity of aquifer A is 1.2\u00a0times greater than the transmissivity in aquifer B (i.e., [latex]T_{a} = 1.2T_{b}[\/latex]). If each well is pumped at the same rate for the same amount of time, which well will experience the greater drawdowns? Circle one of the answers:\r\n\r\n<\/div>\r\n<ol type=\"a\">\r\n \t<li>The well in aquifer A will have greater drawdown.<\/li>\r\n \t<li>The well in aquifer B will have greater drawdown.<\/li>\r\n<\/ol>\r\n<div data-custom-style=\"First Paragraph\">\r\n\r\nPart 2: The following graph shows aquifer test results\u2014specifically, time\u2011drawdown data from observation wells\u2014from two different aquifer tests in two different confined aquifers. For each test, the pump rate is the same and the distance to the observation well from the pumping well is the same. Assume that each aquifer has the same storativity.\r\n\r\n<\/div>\r\n<div data-custom-style=\"Body Text\">\r\n\r\n<img style=\"display: block; margin-left: auto; margin-right: auto; ;width: 5.83333in; height: 3.39168in;\" src=\"https:\/\/books.gw-project.org\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/wp-content\/uploads\/sites\/42\/2026\/05\/file145-2.png\" alt=\"\" \/>\r\n\r\n<\/div>\r\n<div data-custom-style=\"Body Text\">\r\n\r\nWhich aquifer has the greater transmissivity? Circle one:\r\n\r\n<\/div>\r\n<ol type=\"a\">\r\n \t<li>Aquifer 1 has a greater transmissivity.<\/li>\r\n \t<li>Aquifer 2 has a greater transmissivity.<\/li>\r\n<\/ol>\r\n<div data-custom-style=\"First Paragraph\">\r\n\r\n<strong><u><a href=\"\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/chapter\/solution-exercise-8\/#solution-exercise-8\"><span data-custom-style=\"Hyperlink\">Solution for Exercise\u00a0<\/span><\/a>8<\/u><\/strong>\u2ba7\r\n\r\n<\/div>\r\n<div data-custom-style=\"Body Text\">\r\n\r\n<a href=\"\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/chapter\/the-theis-equation\/#extext08\"><span data-custom-style=\"Hyperlink\"><strong>Return to where text linked to Exercise\u00a08<\/strong><\/span><\/a>\u2ba5\r\n\r\n<\/div>\r\n<\/div>","rendered":"<div id=\"exercise-8\" class=\"level1\">\n<div data-custom-style=\"First Paragraph\">\n<p>Part 1: Two wells are completed in two different confined aquifers. All things are equal (e.g., same saturated thickness, storage parameters, well diameter, screened intervals, well efficiency, and so on) except that the transmissivity of aquifer A is 1.2\u00a0times greater than the transmissivity in aquifer B (i.e., [latex]T_{a} = 1.2T_{b}[\/latex]). If each well is pumped at the same rate for the same amount of time, which well will experience the greater drawdowns? Circle one of the answers:<\/p>\n<\/div>\n<ol type=\"a\">\n<li>The well in aquifer A will have greater drawdown.<\/li>\n<li>The well in aquifer B will have greater drawdown.<\/li>\n<\/ol>\n<div data-custom-style=\"First Paragraph\">\n<p>Part 2: The following graph shows aquifer test results\u2014specifically, time\u2011drawdown data from observation wells\u2014from two different aquifer tests in two different confined aquifers. For each test, the pump rate is the same and the distance to the observation well from the pumping well is the same. Assume that each aquifer has the same storativity.<\/p>\n<\/div>\n<div data-custom-style=\"Body Text\">\n<p><img decoding=\"async\" style=\"display: block; margin-left: auto; margin-right: auto; ;width: 5.83333in; height: 3.39168in;\" src=\"https:\/\/books.gw-project.org\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/wp-content\/uploads\/sites\/42\/2026\/05\/file145-2.png\" alt=\"\" \/><\/p>\n<\/div>\n<div data-custom-style=\"Body Text\">\n<p>Which aquifer has the greater transmissivity? Circle one:<\/p>\n<\/div>\n<ol type=\"a\">\n<li>Aquifer 1 has a greater transmissivity.<\/li>\n<li>Aquifer 2 has a greater transmissivity.<\/li>\n<\/ol>\n<div data-custom-style=\"First Paragraph\">\n<p><strong><u><a href=\"\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/chapter\/solution-exercise-8\/#solution-exercise-8\"><span data-custom-style=\"Hyperlink\">Solution for Exercise\u00a0<\/span><\/a>8<\/u><\/strong>\u2ba7<\/p>\n<\/div>\n<div data-custom-style=\"Body Text\">\n<p><a href=\"\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/chapter\/the-theis-equation\/#extext08\"><span data-custom-style=\"Hyperlink\"><strong>Return to where text linked to Exercise\u00a08<\/strong><\/span><\/a>\u2ba5<\/p>\n<\/div>\n<\/div>\n","protected":false},"author":8,"menu_order":91,"template":"","meta":{"pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"class_list":["post-1352","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\/1352","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":2,"href":"https:\/\/books.gw-project.org\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/wp-json\/pressbooks\/v2\/chapters\/1352\/revisions"}],"predecessor-version":[{"id":1799,"href":"https:\/\/books.gw-project.org\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/wp-json\/pressbooks\/v2\/chapters\/1352\/revisions\/1799"}],"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\/1352\/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=1352"}],"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=1352"},{"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=1352"},{"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=1352"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}