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<br />~ ... ~ . ,.. ... <br />L l' ~ li ~ I <br /> <br />. <br /> <br /> <br />Photograph - 5 Hogback Canal, Test Pond No.4 Looking at <br />upstream dam being constructed. <br /> <br />Canal 8eepaqe Tests <br /> <br />. <br /> <br />Seepage tests on the Hogback Canal were conducted between October <br />26 and November 10, 1992. Cross sections and canal bottom <br />gradients were surveyed by Reclamation personnel in September <br />1992 for each test site. Earth dams to form test ponds 3 and 4 <br />were constructed on October 28 and 29 with help from the Navajo <br />Tribe. Water was diverted to the canal to fill these ponds on <br />October 29 and staff gage readings were taken at varying <br />intervals for a 72 hour period ending November 2, 1992. Test <br />pond 2 was constructed on November 2 and 3, 1992 and filled on <br />the afternoon of November 3. Staff gage readings were again <br />taken at varying intervals for approximately 120 hours ending <br />November 9, 1992. Test pond 1 was constructed on November 4 and <br />5, 1992 and filled on November 6th. Staff gage readings were <br />taken for 72 hours ending November 10. Weather during these <br />tests was mostly sunny and windy with no measurable <br />precipitation. <br /> <br />Canal Seepaqe Rates <br /> <br />. <br /> <br />Staff gage readings and seepage rate calculations can be found in <br /> <br />5 <br />