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dc.contributor.authorVandivere, William Benton.
dc.creatorVandivere, William Benton.en_US
dc.date.accessioned2011-11-28T14:03:37Z
dc.date.available2011-11-28T14:03:37Z
dc.date.issued1980en_US
dc.identifier.urihttp://hdl.handle.net/10150/191711
dc.description.abstractA study was undertaken to evaluate the performance of federally regulated sedimentation ponds, used in conjunction with surface mining operations in the semi-arid southwest. Emphasis was placed on the assessment of pond performance under conditions of hydrologic uncertainty represented by precipitation inputs of varying frequencies and durations. A hypothetical watershed with characteristics common to the study area functioned as the medium for surface water flux to the detention facility. Pond design was based on accepted hydrologic and engineering procedure and concurred with published federal reclamation statutes. Computer programs were utilized to model both the temporal characteristics of southwestern convective rainfall and the generation of water and sediment inflows resulting from the application of storms over the watershed. A previously developed sedimentation routine was then used to determine effluent sediment concentrations corresponding to the modeled events. Three watershed-pond conditions were investigated to assess the efficacy of the sedimentation pond in meeting effluent quality standards. Results indicated that poor pond performance ensured unless chemical treatment was maintained. Since variations in precipitation intensity influenced predicted pond performance, it was recommended that hydrologic uncertainty be considered in the drafting of regional reclamation statutes.
dc.language.isoenen_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.subjectHydrology.
dc.subjectSediment control -- Law and legislation -- Southwest, New.
dc.subjectSettling basins -- Mathematical models.
dc.subjectStrip mine ponds -- Mathematical models.
dc.subjectHydrologic models.
dc.titleAn assessment of the performance of federally regulated sedimentation pondsen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.contributor.chairFogel, Martin M.en_US
dc.identifier.oclc212890325en_US
thesis.degree.grantorUniversity of Arizonaen_US
thesis.degree.levelmastersen_US
dc.contributor.committeememberDavis, Donald Rossen_US
dc.contributor.committeememberHekman, Jr., Louis H.en_US
thesis.degree.disciplineRenewable Natural Resourcesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.nameM.S.en_US
dc.description.notehydrology collectionen_US
dc.description.noteDigitization note: p. 85 missing from paper original.
refterms.dateFOA2018-05-27T22:44:46Z
html.description.abstractA study was undertaken to evaluate the performance of federally regulated sedimentation ponds, used in conjunction with surface mining operations in the semi-arid southwest. Emphasis was placed on the assessment of pond performance under conditions of hydrologic uncertainty represented by precipitation inputs of varying frequencies and durations. A hypothetical watershed with characteristics common to the study area functioned as the medium for surface water flux to the detention facility. Pond design was based on accepted hydrologic and engineering procedure and concurred with published federal reclamation statutes. Computer programs were utilized to model both the temporal characteristics of southwestern convective rainfall and the generation of water and sediment inflows resulting from the application of storms over the watershed. A previously developed sedimentation routine was then used to determine effluent sediment concentrations corresponding to the modeled events. Three watershed-pond conditions were investigated to assess the efficacy of the sedimentation pond in meeting effluent quality standards. Results indicated that poor pond performance ensured unless chemical treatment was maintained. Since variations in precipitation intensity influenced predicted pond performance, it was recommended that hydrologic uncertainty be considered in the drafting of regional reclamation statutes.


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