{"id":1353,"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-9\/"},"modified":"2026-05-13T03:34:14","modified_gmt":"2026-05-13T03:34:14","slug":"exercise-9","status":"publish","type":"chapter","link":"https:\/\/books.gw-project.org\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/chapter\/exercise-9\/","title":{"raw":"Exercise 9","rendered":"Exercise 9"},"content":{"raw":"<div id=\"exercise-9\" class=\"level1\">\r\n<div data-custom-style=\"First Paragraph\">\r\n\r\nAn observation well located 75\u00a0m from a pumping well has a static water level of 175\u00a0m\u00a0ASL. The pumping well is pumped for 36\u00a0hours at a rate of 545 m<sup>3<\/sup>\/d. Calculate the drawdown and final head in the observation well at the end of the 36\u2011hour pumping period. Assume the following:\r\n\r\n<\/div>\r\n<div data-custom-style=\"Body Text\">\r\n\r\n<em>K<\/em>\u00a0=\u00a00.61 m\/d (7.06 x 10<sup>-6<\/sup> m\/s)\r\n\r\n<\/div>\r\n<div data-custom-style=\"Body Text\">\r\n\r\n<em>b<\/em> = 75 m\r\n\r\n<\/div>\r\n<div data-custom-style=\"Body Text\">\r\n\r\n<em>S<\/em>\u00a0=\u00a00.0004\r\n\r\n<\/div>\r\n<div data-custom-style=\"Body Text\">\r\n\r\n<strong><u><a href=\"\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/chapter\/solution-exercise-9\/#solution-exercise-9\"><span data-custom-style=\"Hyperlink\">Solution for Exercise\u00a0<\/span><\/a>9<\/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\/#extext09\"><span data-custom-style=\"Hyperlink\"><strong>Return to where text linked to Exercise\u00a09<\/strong><\/span><\/a>\u2ba5\r\n\r\n<\/div>\r\n<\/div>","rendered":"<div id=\"exercise-9\" class=\"level1\">\n<div data-custom-style=\"First Paragraph\">\n<p>An observation well located 75\u00a0m from a pumping well has a static water level of 175\u00a0m\u00a0ASL. The pumping well is pumped for 36\u00a0hours at a rate of 545 m<sup>3<\/sup>\/d. Calculate the drawdown and final head in the observation well at the end of the 36\u2011hour pumping period. Assume the following:<\/p>\n<\/div>\n<div data-custom-style=\"Body Text\">\n<p><em>K<\/em>\u00a0=\u00a00.61 m\/d (7.06 x 10<sup>-6<\/sup> m\/s)<\/p>\n<\/div>\n<div data-custom-style=\"Body Text\">\n<p><em>b<\/em> = 75 m<\/p>\n<\/div>\n<div data-custom-style=\"Body Text\">\n<p><em>S<\/em>\u00a0=\u00a00.0004<\/p>\n<\/div>\n<div data-custom-style=\"Body Text\">\n<p><strong><u><a href=\"\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/chapter\/solution-exercise-9\/#solution-exercise-9\"><span data-custom-style=\"Hyperlink\">Solution for Exercise\u00a0<\/span><\/a>9<\/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\/#extext09\"><span data-custom-style=\"Hyperlink\"><strong>Return to where text linked to Exercise\u00a09<\/strong><\/span><\/a>\u2ba5<\/p>\n<\/div>\n<\/div>\n","protected":false},"author":8,"menu_order":92,"template":"","meta":{"pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"class_list":["post-1353","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\/1353","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\/1353\/revisions"}],"predecessor-version":[{"id":1800,"href":"https:\/\/books.gw-project.org\/basic-hydrogeology-an-introduction-to-the-fundamentals-of-groundwater-science\/wp-json\/pressbooks\/v2\/chapters\/1353\/revisions\/1800"}],"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\/1353\/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=1353"}],"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=1353"},{"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=1353"},{"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=1353"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}