Hale Barter<\/h1><\/div><\/div><\/div><\/div><\/div>Hale Barter<\/h2><\/div><\/div><\/div>President
Principal Groundwater Hydrologist
Tucson Operations Manager<\/h3><\/div><\/div><\/div>Areas of Specialization<\/h2><\/div>- <\/i><\/span>\n
Mine Dewatering and Water Supply Development<\/p>\n<\/div><\/li>
- <\/i><\/span>Managed Aquifer Recharge (MAR) Investigations<\/div><\/li>
- <\/i><\/span>Groundwater Flow and Solute-Transport Modeling<\/div><\/li><\/ul><\/div><\/div>
Hale Barter became president of M&A in 2018 and served as the CFO for the preceding 10 years. He joined M&A in 1994 and has been consulting since 1988.<\/p>\n
In addition to his management role, Hale\u2019s career has included overseeing, designing, and implementing groundwater flow and transport models to support a variety of projects. A substantial focus of his work has entailed characterizing and modeling fractured bedrock and basin-fill aquifer systems for mining clients in the United States and South America. He has extensive experience developing models to support mining EIS and permitting studies, hydrogeologic feasibility investigations, and groundwater supply and impacts management.<\/p>\n
Another area of focus includes MAR; Hale has developed numerous predictive models to assess the feasibility of storing treated effluent or surface water in aquifers and then withdrawing it for future use. In addition, he has also applied his modeling and analytical skills to support large-scale groundwater management efforts and to address environmental problems such as optimizing cleanup strategies or assessing the feasibility of proposed remedial actions.<\/p>\n<\/div><\/div><\/div>
![\"Hale](\"https:\/\/elmontgomery.com\/wp-content\/uploads\/2022\/06\/Hale-Barter.jpg\" "\\"Hale-Barter\\"")
<\/span><\/div><\/div>Qualifications
At A Glance<\/h3><\/div><\/div><\/div>Experience since 1988<\/p>\n
M.S. Hydrology<\/strong>
University of Arizona<\/em><\/p>\nB.S. Hydrology<\/strong>
University of Arizona<\/em><\/p>\n<\/div><\/div><\/div>Email Hale<\/span><\/i><\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>Hydro Note<\/h2><\/div>![\"Supporting](\"https:\/\/elmontgomery.com\/wp-content\/uploads\/2025\/09\/IPR-header-5.jpg\")
<\/a><\/span><\/div>Supporting Groundwater Management with Indirect Potable Reuse<\/a><\/h3><\/div>[ 9.16.2025 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n![\"Montgomery](\"https:\/\/elmontgomery.com\/wp-content\/uploads\/2025\/05\/Machine-Learning-HN-Titlebar.jpg\")
<\/a><\/span><\/div>Montgomery & Associates Adopts Machine Learning to Help Optimize Water Sustainability Projects<\/a><\/h3><\/div>[ 5.6.2025 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n![\"Moving](\"https:\/\/elmontgomery.com\/wp-content\/uploads\/2025\/04\/Page-title-bar.jpg\")
<\/a><\/span><\/div>Moving to Lithium Brine Production and Reconciliation: Key Challenges for Mobile Ore<\/a><\/h3><\/div>[ 4.18.2025 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n![\"Understanding](\"https:\/\/elmontgomery.com\/wp-content\/uploads\/2024\/12\/Page-title-bar-3.png\")
<\/a><\/span><\/div>Understanding Groundwater Markets and Water Accounting Frameworks<\/a><\/h3><\/div>[ 12.6.2024 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n![\"Coupling](\"https:\/\/elmontgomery.com\/wp-content\/uploads\/2024\/10\/page-header.png\")
<\/a><\/span><\/div>Coupling Subsidence and Groundwater Level Management Targets with Numerical Models for Sustainability Planning<\/a><\/h3><\/div>[ 10.3.2024 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n![\"Continuing](\"https:\/\/elmontgomery.com\/wp-content\/uploads\/2022\/11\/AdobeStock_106254820-Salinas-EDIT.jpg\")
<\/a><\/span><\/div>Continuing the Journey toward Groundwater Sustainability: Review of DWR\u2019s determinations<\/a><\/h3><\/div>[ 6.30.2023 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n![\"M&A](\"https:\/\/elmontgomery.com\/wp-content\/uploads\/2023\/04\/GoldSim-HydroNote-featured-image6-1-1.jpg\")
<\/a><\/span><\/div>M&A uses GoldSim software to support decision making in water supply projects<\/a><\/h3><\/div>
Hale Barter<\/h2><\/div><\/div><\/div>President
Principal Groundwater Hydrologist
Tucson Operations Manager<\/h3><\/div><\/div><\/div>Areas of Specialization<\/h2><\/div>- <\/i><\/span>\n
Mine Dewatering and Water Supply Development<\/p>\n<\/div><\/li>
- <\/i><\/span>Managed Aquifer Recharge (MAR) Investigations<\/div><\/li>
- <\/i><\/span>Groundwater Flow and Solute-Transport Modeling<\/div><\/li><\/ul><\/div><\/div>
Hale Barter became president of M&A in 2018 and served as the CFO for the preceding 10 years. He joined M&A in 1994 and has been consulting since 1988.<\/p>\n
In addition to his management role, Hale\u2019s career has included overseeing, designing, and implementing groundwater flow and transport models to support a variety of projects. A substantial focus of his work has entailed characterizing and modeling fractured bedrock and basin-fill aquifer systems for mining clients in the United States and South America. He has extensive experience developing models to support mining EIS and permitting studies, hydrogeologic feasibility investigations, and groundwater supply and impacts management.<\/p>\n
Another area of focus includes MAR; Hale has developed numerous predictive models to assess the feasibility of storing treated effluent or surface water in aquifers and then withdrawing it for future use. In addition, he has also applied his modeling and analytical skills to support large-scale groundwater management efforts and to address environmental problems such as optimizing cleanup strategies or assessing the feasibility of proposed remedial actions.<\/p>\n<\/div><\/div><\/div>
<\/span><\/div><\/div>Qualifications
At A Glance<\/h3><\/div><\/div><\/div>Experience since 1988<\/p>\n
M.S. Hydrology<\/strong>
University of Arizona<\/em><\/p>\nB.S. Hydrology<\/strong>
University of Arizona<\/em><\/p>\n<\/div><\/div><\/div>Email Hale<\/span><\/i><\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>Hydro Note<\/h2><\/div>- <\/a><\/span><\/div>
Supporting Groundwater Management with Indirect Potable Reuse<\/a><\/h3><\/div>[ 9.16.2025 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n- <\/a><\/span><\/div>
Montgomery & Associates Adopts Machine Learning to Help Optimize Water Sustainability Projects<\/a><\/h3><\/div>[ 5.6.2025 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n- <\/a><\/span><\/div>
Moving to Lithium Brine Production and Reconciliation: Key Challenges for Mobile Ore<\/a><\/h3><\/div>[ 4.18.2025 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n- <\/a><\/span><\/div>
Understanding Groundwater Markets and Water Accounting Frameworks<\/a><\/h3><\/div>[ 12.6.2024 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n- <\/a><\/span><\/div>
Coupling Subsidence and Groundwater Level Management Targets with Numerical Models for Sustainability Planning<\/a><\/h3><\/div>[ 10.3.2024 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n- <\/a><\/span><\/div>
Continuing the Journey toward Groundwater Sustainability: Review of DWR\u2019s determinations<\/a><\/h3><\/div>[ 6.30.2023 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n- <\/a><\/span><\/div>
M&A uses GoldSim software to support decision making in water supply projects<\/a><\/h3><\/div>
President
Principal Groundwater Hydrologist
Tucson Operations Manager<\/h3><\/div><\/div><\/div>Areas of Specialization<\/h2><\/div>- <\/i><\/span>\n
Mine Dewatering and Water Supply Development<\/p>\n<\/div><\/li>
- <\/i><\/span>Managed Aquifer Recharge (MAR) Investigations<\/div><\/li>
- <\/i><\/span>Groundwater Flow and Solute-Transport Modeling<\/div><\/li><\/ul><\/div><\/div>
Hale Barter became president of M&A in 2018 and served as the CFO for the preceding 10 years. He joined M&A in 1994 and has been consulting since 1988.<\/p>\n
In addition to his management role, Hale\u2019s career has included overseeing, designing, and implementing groundwater flow and transport models to support a variety of projects. A substantial focus of his work has entailed characterizing and modeling fractured bedrock and basin-fill aquifer systems for mining clients in the United States and South America. He has extensive experience developing models to support mining EIS and permitting studies, hydrogeologic feasibility investigations, and groundwater supply and impacts management.<\/p>\n
Another area of focus includes MAR; Hale has developed numerous predictive models to assess the feasibility of storing treated effluent or surface water in aquifers and then withdrawing it for future use. In addition, he has also applied his modeling and analytical skills to support large-scale groundwater management efforts and to address environmental problems such as optimizing cleanup strategies or assessing the feasibility of proposed remedial actions.<\/p>\n<\/div><\/div><\/div>
<\/span><\/div><\/div>Qualifications
At A Glance<\/h3><\/div><\/div><\/div>Experience since 1988<\/p>\n
M.S. Hydrology<\/strong>
University of Arizona<\/em><\/p>\nB.S. Hydrology<\/strong>
University of Arizona<\/em><\/p>\n<\/div><\/div><\/div>Email Hale<\/span><\/i><\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>Hydro Note<\/h2><\/div>- <\/a><\/span><\/div>
Supporting Groundwater Management with Indirect Potable Reuse<\/a><\/h3><\/div>[ 9.16.2025 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n- <\/a><\/span><\/div>
Montgomery & Associates Adopts Machine Learning to Help Optimize Water Sustainability Projects<\/a><\/h3><\/div>[ 5.6.2025 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n- <\/a><\/span><\/div>
Moving to Lithium Brine Production and Reconciliation: Key Challenges for Mobile Ore<\/a><\/h3><\/div>[ 4.18.2025 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n- <\/a><\/span><\/div>
Understanding Groundwater Markets and Water Accounting Frameworks<\/a><\/h3><\/div>[ 12.6.2024 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n- <\/a><\/span><\/div>
Coupling Subsidence and Groundwater Level Management Targets with Numerical Models for Sustainability Planning<\/a><\/h3><\/div>[ 10.3.2024 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n- <\/a><\/span><\/div>
Continuing the Journey toward Groundwater Sustainability: Review of DWR\u2019s determinations<\/a><\/h3><\/div>[ 6.30.2023 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n- <\/a><\/span><\/div>
M&A uses GoldSim software to support decision making in water supply projects<\/a><\/h3><\/div>
Areas of Specialization<\/h2><\/div>- <\/i><\/span>\n
Mine Dewatering and Water Supply Development<\/p>\n<\/div><\/li>
- <\/i><\/span>Managed Aquifer Recharge (MAR) Investigations<\/div><\/li>
- <\/i><\/span>Groundwater Flow and Solute-Transport Modeling<\/div><\/li><\/ul><\/div><\/div>
Hale Barter became president of M&A in 2018 and served as the CFO for the preceding 10 years. He joined M&A in 1994 and has been consulting since 1988.<\/p>\n
In addition to his management role, Hale\u2019s career has included overseeing, designing, and implementing groundwater flow and transport models to support a variety of projects. A substantial focus of his work has entailed characterizing and modeling fractured bedrock and basin-fill aquifer systems for mining clients in the United States and South America. He has extensive experience developing models to support mining EIS and permitting studies, hydrogeologic feasibility investigations, and groundwater supply and impacts management.<\/p>\n
Another area of focus includes MAR; Hale has developed numerous predictive models to assess the feasibility of storing treated effluent or surface water in aquifers and then withdrawing it for future use. In addition, he has also applied his modeling and analytical skills to support large-scale groundwater management efforts and to address environmental problems such as optimizing cleanup strategies or assessing the feasibility of proposed remedial actions.<\/p>\n<\/div><\/div><\/div>
<\/span><\/div><\/div>Qualifications
At A Glance<\/h3><\/div><\/div><\/div>Experience since 1988<\/p>\n
M.S. Hydrology<\/strong>
University of Arizona<\/em><\/p>\nB.S. Hydrology<\/strong>
University of Arizona<\/em><\/p>\n<\/div><\/div><\/div>Email Hale<\/span><\/i><\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>Hydro Note<\/h2><\/div>- <\/a><\/span><\/div>
Supporting Groundwater Management with Indirect Potable Reuse<\/a><\/h3><\/div>[ 9.16.2025 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n- <\/a><\/span><\/div>
Montgomery & Associates Adopts Machine Learning to Help Optimize Water Sustainability Projects<\/a><\/h3><\/div>[ 5.6.2025 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n- <\/a><\/span><\/div>
Moving to Lithium Brine Production and Reconciliation: Key Challenges for Mobile Ore<\/a><\/h3><\/div>[ 4.18.2025 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n- <\/a><\/span><\/div>
Understanding Groundwater Markets and Water Accounting Frameworks<\/a><\/h3><\/div>[ 12.6.2024 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n- <\/a><\/span><\/div>
Coupling Subsidence and Groundwater Level Management Targets with Numerical Models for Sustainability Planning<\/a><\/h3><\/div>[ 10.3.2024 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n- <\/a><\/span><\/div>
Continuing the Journey toward Groundwater Sustainability: Review of DWR\u2019s determinations<\/a><\/h3><\/div>[ 6.30.2023 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n- <\/a><\/span><\/div>
M&A uses GoldSim software to support decision making in water supply projects<\/a><\/h3><\/div>
Mine Dewatering and Water Supply Development<\/p>\n<\/div><\/li>
Hale Barter became president of M&A in 2018 and served as the CFO for the preceding 10 years. He joined M&A in 1994 and has been consulting since 1988.<\/p>\n
In addition to his management role, Hale\u2019s career has included overseeing, designing, and implementing groundwater flow and transport models to support a variety of projects. A substantial focus of his work has entailed characterizing and modeling fractured bedrock and basin-fill aquifer systems for mining clients in the United States and South America. He has extensive experience developing models to support mining EIS and permitting studies, hydrogeologic feasibility investigations, and groundwater supply and impacts management.<\/p>\n
Another area of focus includes MAR; Hale has developed numerous predictive models to assess the feasibility of storing treated effluent or surface water in aquifers and then withdrawing it for future use. In addition, he has also applied his modeling and analytical skills to support large-scale groundwater management efforts and to address environmental problems such as optimizing cleanup strategies or assessing the feasibility of proposed remedial actions.<\/p>\n<\/div><\/div><\/div>
<\/span><\/div>Qualifications
At A Glance<\/h3><\/div><\/div><\/div>Experience since 1988<\/p>\n
M.S. Hydrology<\/strong>
University of Arizona<\/em><\/p>\nB.S. Hydrology<\/strong>
University of Arizona<\/em><\/p>\n<\/div><\/div><\/div>Email Hale<\/span><\/i><\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>Hydro Note<\/h2><\/div>- <\/a><\/span><\/div>
Supporting Groundwater Management with Indirect Potable Reuse<\/a><\/h3><\/div>[ 9.16.2025 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n- <\/a><\/span><\/div>
Montgomery & Associates Adopts Machine Learning to Help Optimize Water Sustainability Projects<\/a><\/h3><\/div>[ 5.6.2025 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n- <\/a><\/span><\/div>
Moving to Lithium Brine Production and Reconciliation: Key Challenges for Mobile Ore<\/a><\/h3><\/div>[ 4.18.2025 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n- <\/a><\/span><\/div>
Understanding Groundwater Markets and Water Accounting Frameworks<\/a><\/h3><\/div>[ 12.6.2024 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n- <\/a><\/span><\/div>
Coupling Subsidence and Groundwater Level Management Targets with Numerical Models for Sustainability Planning<\/a><\/h3><\/div>[ 10.3.2024 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n- <\/a><\/span><\/div>
Continuing the Journey toward Groundwater Sustainability: Review of DWR\u2019s determinations<\/a><\/h3><\/div>[ 6.30.2023 ]<\/p>\n<\/div>
<\/div>READ MORE<\/span><\/i><\/a><\/div><\/div><\/li>\n- <\/a><\/span><\/div>
M&A uses GoldSim software to support decision making in water supply projects<\/a><\/h3><\/div>
Experience since 1988<\/p>\n
M.S. Hydrology<\/strong> B.S. Hydrology<\/strong> [ 9.16.2025 ]<\/p>\n<\/div> [ 5.6.2025 ]<\/p>\n<\/div> [ 4.18.2025 ]<\/p>\n<\/div> [ 12.6.2024 ]<\/p>\n<\/div> [ 10.3.2024 ]<\/p>\n<\/div> [ 6.30.2023 ]<\/p>\n<\/div>
University of Arizona<\/em><\/p>\n
University of Arizona<\/em><\/p>\n<\/div>Hydro Note<\/h2><\/div>
<\/a><\/span><\/div>Supporting Groundwater Management with Indirect Potable Reuse<\/a><\/h3><\/div>
<\/a><\/span><\/div>Montgomery & Associates Adopts Machine Learning to Help Optimize Water Sustainability Projects<\/a><\/h3><\/div>
<\/a><\/span><\/div>Moving to Lithium Brine Production and Reconciliation: Key Challenges for Mobile Ore<\/a><\/h3><\/div>
<\/a><\/span><\/div>Understanding Groundwater Markets and Water Accounting Frameworks<\/a><\/h3><\/div>
<\/a><\/span><\/div>Coupling Subsidence and Groundwater Level Management Targets with Numerical Models for Sustainability Planning<\/a><\/h3><\/div>
<\/a><\/span><\/div>Continuing the Journey toward Groundwater Sustainability: Review of DWR\u2019s determinations<\/a><\/h3><\/div>
<\/a><\/span><\/div>M&A uses GoldSim software to support decision making in water supply projects<\/a><\/h3><\/div>
![\"Water](\"https:\/\/elmontgomery.com\/wp-content\/uploads\/2022\/10\/green-photo-shutterstock_1443475445-1024x476.jpg\")
<\/a><\/span><\/div>![\"SGMA](\"https:\/\/elmontgomery.com\/wp-content\/uploads\/2022\/07\/iStock_9162379_LARGE-scaled.jpg\")
<\/a><\/span><\/div>![\"Lithium](\"https:\/\/elmontgomery.com\/wp-content\/uploads\/2022\/05\/Lithium-hydro-note.jpg\")
<\/a><\/span><\/div>