Analysis of flow to pumping wells in a saline coastal aquifer, Puerto Peñasco, Sonora, Mexico

Persistent Link:
http://hdl.handle.net/10150/191733
Title:
Analysis of flow to pumping wells in a saline coastal aquifer, Puerto Peñasco, Sonora, Mexico
Author:
Dunn, Alison Leeds.
Issue Date:
1981
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:
A line of pumping wells, 100-175 m from the shore in a shallow coastal aquifer east of Puerto Petasco, Sonora, Mexico, supplied salt water at a rate of 7,500 to 11,500 m³/day to a shrimp aquaculture facility. This water exhibited salinities as high as 41.5 parts per thousand (ppt) and the well farthest inland yielded the most saline water. Effluent was discharged from the facility at an average rate of 6,000 m³/day to two lakes 400 m inland from the wells. In 1979, the salinity in the first lake ranged between 39 and 42 ppt and in the second lake between 41 and 78 ppt. Measurements of ground-water levels were made in nine smalldiameter well-points. A steady-state numerical model was used to simulate flow conditions in the study area and calibrated against these measurements on three separate dates. The best fit was obtained by modeling the effluent lakes as zones of semi-pervious leakage to the main aquifer and assuming a uniform transmissivity of 575 m²/day. Flow-net analyses indicated that 30 to 50 percent of the pumped water was contributed from the direction of the effluent lakes. The regional gradient could not be determined, and further research would be needed to identify its influence on the local flow regime.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Groundwater -- Mexico -- Sonora (State); Groundwater flow -- Mexico -- Sonora (State); Saline waters -- Mexico -- Sonora (State)
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Hydrology and Water Resources; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Ince, Simon

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleAnalysis of flow to pumping wells in a saline coastal aquifer, Puerto Peñasco, Sonora, Mexicoen_US
dc.creatorDunn, Alison Leeds.en_US
dc.contributor.authorDunn, Alison Leeds.en_US
dc.date.issued1981en_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.abstractA line of pumping wells, 100-175 m from the shore in a shallow coastal aquifer east of Puerto Petasco, Sonora, Mexico, supplied salt water at a rate of 7,500 to 11,500 m³/day to a shrimp aquaculture facility. This water exhibited salinities as high as 41.5 parts per thousand (ppt) and the well farthest inland yielded the most saline water. Effluent was discharged from the facility at an average rate of 6,000 m³/day to two lakes 400 m inland from the wells. In 1979, the salinity in the first lake ranged between 39 and 42 ppt and in the second lake between 41 and 78 ppt. Measurements of ground-water levels were made in nine smalldiameter well-points. A steady-state numerical model was used to simulate flow conditions in the study area and calibrated against these measurements on three separate dates. The best fit was obtained by modeling the effluent lakes as zones of semi-pervious leakage to the main aquifer and assuming a uniform transmissivity of 575 m²/day. Flow-net analyses indicated that 30 to 50 percent of the pumped water was contributed from the direction of the effluent lakes. The regional gradient could not be determined, and further research would be needed to identify its influence on the local flow regime.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshGroundwater -- Mexico -- Sonora (State)en_US
dc.subject.lcshGroundwater flow -- Mexico -- Sonora (State)en_US
dc.subject.lcshSaline waters -- Mexico -- Sonora (State)en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineHydrology and Water Resourcesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.chairInce, Simonen_US
dc.identifier.oclc212855079en_US
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