Arizona Geological Survey Special Paper 11, 70 P., 2 Map Plates - 1:60,000 Scale, 10 Appendices, GIS Data
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Subsurface Hydrogeologic Investigation of the Superstition Vistas Planning Area, Maricopa and Pinal Counties, Arizona Authors Gootee, B.F.; Cook, J.P.; Young, J.J.; Pearthree, P.A. Citation Gootee, B.F., Cook, J.P., Young, J.J. and Pearthree, P.A., 2017, Subsurface hydrogeologic investigation of the Superstition Vistas Planning Area, Maricopa and Pinal Counties, Arizona. Arizona Geological Survey Special Paper 11, 70 p., 2 Map Plates - 1:60,000 scale, 10 appendices, GIS data. Rights Arizona Geological Survey. All rights reserved. Download date 30/09/2021 00:04:36 Link to Item http://hdl.handle.net/10150/630077 Subsurface Hydrogeologic Investigation of the Superstition Vistas Planning Area, Maricopa and Pinal Counties, Arizona Brian F. Gootee, Joseph P. Cook, Jeri J. Young and Phil A. Pearthree Arizona Geological Survey SPECIAL PAPER 11 July 2017 Arizona Geological Survey azgs.arizona.edu | repository.azgs.az.gov Arizona Geological Survey P.A. Pearthree, State Geologist and Director Manuscript approved for publication in July 2017 Printed by the Arizona Geological Survey All rights reserved For an electronic copy of this publication: www.repository.azgs.az.gov For information on the mission, objectives or geologic products of the Arizona Geological Survey visit azgs.arizona.edu. This publication was prepared by the Arizona Geological Survey at the University of Arizona. The University of Arizona, or any department thereof, or any of their employees, makes no warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or pro- cess disclosed in this report. Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the University of Arizona. ___________________________ Recommended Citation: Gootee, B.F., Cook, J.P., Young, J.A. and Pearthree, P.A., 2017, Subsurface hydrogeologic investigation of the Superstition Vistas Planning Area, Maricopa and Pinal Counties, Arizona. Arizona Geological Survey Special Paper 11, 70 p., 2 Map Plates - 1:60,000 scale, 10 appendices, GIS data. Subsurface Hydrogeologic Investigation of the Superstition Vistas Planning Area, Maricopa and Pinal Counties, Arizona Drilling operations at Exploratory Boring A2. View to north with Superstition Mountains in background. July, 2017 Brian F. Gootee Joe Cook Jeri J. Young Phil A. Pearthree Arizona Geological Survey University of Arizona 1955 East Sixth Street, P.O. Box 210284 Tucson, Arizona 85721 520-621-2470, azgs.arizona.edu Table of Contents List of Tables ............................................................................................................... iii List of Figures ............................................................................................................. iii List of Plates ................................................................................................................ iii List of Appendices (USB Flash Drive only) .............................................................. iv USB Flash Drive Contents................................................ Error! Bookmark not defined. EXECUTIVE SUMMARY ............................................................................................... v Acknowledgements ................................................................................................... vii 1.0 Introduction ........................................................................................................... 1 2.0 Borehole Data and Analysis ................................................................................ 3 2.1 Site Evaluation and Selection ................................................................................................ 3 2.2 Sample Collection and Analytical Methods ............................................................................ 3 2.2.1 Lithology Analysis ........................................................................................................... 3 2.2.2 Mineral Analysis .............................................................................................................. 4 2.2.3 Sieve Analysis ................................................................................................................. 4 2.3 Borehole Geophysics ............................................................................................................. 4 2.4 Designation of Hydrogeologic Units ....................................................................................... 5 2.5 Summary of Borehole Analyses ............................................................................................. 5 2.5.1 Exploration Borehole A1 ................................................................................................. 5 2.5.2 Exploration Borehole A2 ................................................................................................. 6 2.5.3 Exploration Borehole C1 ................................................................................................. 7 2.5.4 Exploration Borehole C3a1 ............................................................................................. 9 2.5.5 Exploration Borehole A3a ............................................................................................. 10 2.5.6 Test Well B2a ................................................................................................................ 11 3.0 Vintage Seismic Reflection Data and Analysis ................................................ 12 3.1 Site Evaluation and Selection .............................................................................................. 12 3.2 Analysis ................................................................................................................................ 12 3.3 Findings and Interpretations ................................................................................................. 13 4.0 Subsurface Hydrogeologic Analysis ................................................................ 14 4.1 Approach and Methods ........................................................................................................ 14 4.2 Hydrogeologic Cross-Sections ............................................................................................. 15 4.3 Geologic Setting and Structure ............................................................................................ 15 Subsurface Hydrogeologic Investigation SVPA Page i of vii 4.3.1 Mid-Tertiary sequence................................................................................................. 15 4.3.2 Basin-fill sequence ...................................................................................................... 16 4.3.2.1 Lower Alluvial Unit and Bedrock ......................................................................... 17 4.3.2.2 Middle Alluvial Unit .............................................................................................. 20 4.3.2.3 Upper Alluvial Unit and Queen Creek ................................................................. 21 4.4 Basin-fill Facies and extent of interbedded basalts .............................................................. 23 5.0 Aquifer Test and Water Quality Analysis .......................................................... 26 5.1 Introduction ........................................................................................................................... 26 5.2 Aquifer Testing and Water Quality Sampling Summary ....................................................... 26 5.2.1 ASLD Well ................................................................................................................. 26 5.2.2 AWC Wells ................................................................................................................ 26 5.2.3 Test Well B2a ............................................................................................................ 27 5.3 Discussion ............................................................................................................................ 28 5.3.1 Three Aquifer Test Results ....................................................................................... 28 5.3.2 Transmissivity Distribution in the Study Area and Vicinity ........................................ 29 5.3.2.1 Transmissivity Trends North of Queen Creek Wash .......................................... 29 5.3.2.2 Transmissivity Trends South of Queen Creek Wash .......................................... 30 5.3.3 Water Quality Sampling Results ............................................................................... 30 6.0 Recommendations for Additional Investigation .............................................. 32 7.0 References Cited ................................................................................................ 33 Subsurface Hydrogeologic Investigation SVPA Page ii of vii List of Tables Table 1. Well site selection and location for exploratory borings. Table 2. Sample repositories for SVPA boreholes. Table 3. Hydrogeologic units in SVPA. Table 4. Summary of hydrogeologic boundaries determined from boring and well analyses. Table 5. Summary of observations and interpretations from vintage seismic data. Table 6. Summary of Phase II Aquifer Test Results: Well Pertinent Data and Transmissivity. Table 7. Summary of Groundwater Quality, Superstition Vistas. List of Figures