The limnology of Lake Pleasant, Arizona and its effect on water quality in the Central Arizona Project canal

Persistent Link:
http://hdl.handle.net/10150/289815
Title:
The limnology of Lake Pleasant, Arizona and its effect on water quality in the Central Arizona Project canal
Author:
Walker, David B.
Issue Date:
2002
Publisher:
The University of Arizona.
Rights:
Copyright © 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.
Abstract:
Recent changes in the management strategy of water released from Lake Pleasant into the Central Arizona Project canal have substantially reduced taste and odor complaints among water consumers. Most of the taste and odor complaints were likely caused by 2-methylisobomeol (MIB) and geosmin produced by periphytic cyanobacteria growing on canal surfaces. Most years, Lake Pleasant consists almost exclusively of water brought in via the CAP canal. The location of the inlet towers and the old Waddell dam influence sedimentation of material brought in by the CAP canal. In-coming water was found to contain large amounts of periphyton of the type commonly found growing on the sides of the CAP canal. Withdrawal of hypolimnetic water early in the spring of 1997 decreased the time that sediments were exposed to anoxic conditions, potentially decreasing the amount of nutrients released into the CAP canal and therefore available for periphytic cyanobacteria. Utilizing this management strategy since 1997 has resulted in a substantial reduction (or elimination) of consumer complaints of earthy/musty tastes and odors.
Type:
text; Dissertation-Reproduction (electronic)
Keywords:
Engineering, Civil.; Environmental Sciences.; Biology, Limnology.
Degree Name:
Ph.D.
Degree Level:
doctoral
Degree Program:
Graduate College; Soil, Water and Environmental Science
Degree Grantor:
University of Arizona
Advisor:
Frye, Robert J.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleThe limnology of Lake Pleasant, Arizona and its effect on water quality in the Central Arizona Project canalen_US
dc.creatorWalker, David B.en_US
dc.contributor.authorWalker, David B.en_US
dc.date.issued2002en_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.description.abstractRecent changes in the management strategy of water released from Lake Pleasant into the Central Arizona Project canal have substantially reduced taste and odor complaints among water consumers. Most of the taste and odor complaints were likely caused by 2-methylisobomeol (MIB) and geosmin produced by periphytic cyanobacteria growing on canal surfaces. Most years, Lake Pleasant consists almost exclusively of water brought in via the CAP canal. The location of the inlet towers and the old Waddell dam influence sedimentation of material brought in by the CAP canal. In-coming water was found to contain large amounts of periphyton of the type commonly found growing on the sides of the CAP canal. Withdrawal of hypolimnetic water early in the spring of 1997 decreased the time that sediments were exposed to anoxic conditions, potentially decreasing the amount of nutrients released into the CAP canal and therefore available for periphytic cyanobacteria. Utilizing this management strategy since 1997 has resulted in a substantial reduction (or elimination) of consumer complaints of earthy/musty tastes and odors.en_US
dc.typetexten_US
dc.typeDissertation-Reproduction (electronic)en_US
dc.subjectEngineering, Civil.en_US
dc.subjectEnvironmental Sciences.en_US
dc.subjectBiology, Limnology.en_US
thesis.degree.namePh.D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineSoil, Water and Environmental Scienceen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorFrye, Robert J.en_US
dc.identifier.proquest3060950en_US
dc.identifier.bibrecord.b43035073en_US
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