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Projects by Hargis Environmental Professionals

Hargis environmental professionals provide turnkey program support from science to compliance. We are committed to exceptional client service by knowing your business, earning your trust, and building enduring relationships. See how we’ve helped clients just like you complete projects on-time, on-budget, and with no surprises.

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Per – and Polyfluoroalkly Substances (PFAS) Contamination Investigation and Remedial Design

Polyfluoroalkly Substances (PFAS) Contamination Investigation
The Tucson Central well field serves as the primary drinking water supply for over 65,000 people and the sole alternate drinking water supply for 600,000 people. When threatened by PFAS contamination, a team of experts worked closely with the Arizona Department of Environmental Quality to investigation, characterize, and begin remediation of efforts to ensure a safe and sustainable water supply. Read more | Download PDF

RCRA Remediation and Monitoring, Aerospace and Defense Industry

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When managing environmental liabilities and due diligence for aerospace sites around the globe, Engineering Managers rely on technical consultants they can trust to mitigate long-term risk. Read more | Download PDF

Strategic Replacement of Water Production Wells

Strategic Replacement of Water Production Wells
Poorly producing or damaged irrigation wells cause an unnecessary strain on drought stricken communities. See how the hydrogeologists at Hargis are helping an Arizona irrigation district with replacement wells to satisfy water demands. Read more | Download PDF

Navigating the Superfund Cleanup Process

Navigating the Superfund Cleanup Process
Through an extraordinary collaborative partnership, Hargis consultants assisted with the remediation of lead contaminated soil and VOCs in the groundwater. The complex remediation strategy included soil excavation, pump and treat, and monitored natural attenuation. Read more | Download PDF

Environmental Remediation on Native Lands

Environmental Remediation on Native Lands
Over 56 million acres of land are held in trust by the United States for various Native American tribes and individuals. Environmental investigations and remediation on Native lands requires a unique set of qualifications. Read more | Download PDF

Remediation System Upgrade for Improved Mass Recovery

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O&M oversight isn’t about keeping the status quo. See how Hargis engineers increased runtime by 94% and mass removal by more than 1500% for a former aerospace manufacturing facility impacted with volatile and semi-volatile organic compounds. Read more | Download PDF

RCRA Closure at a Former Manufacturing Facility

RCRA Closure at a Former Manufacturing Facility
Monitored Natural Attenuation is often a successful and cost-effective remedial approach. See how MNA is being used to remediate groundwater following in situ source remediation at a former manufacturing site. Read more | Download PDF

In-Situ Bioremediation of VOCs in Groundwater

In-Situ Bioremediation of VOCs in Groundwater

Initial site investigations for this former southern California manufacturing site found the soil and groundwater had been impacted by volatile organic compounds, including trichloroethylene and tetrachloroethylene. Read more | Download PDF

Central Tucson Per & Polyfluoroalkyl Substances Project

Central Tucson Cen & Polyfluoroalkyl Substances Project

Hargis has worked with the Arizona Department of Environmental Quality (ADEQ) on various projects to investigate and remediate per- and polyfluoroalkyl substances (PFAS) in the Tucson area including. Read more

Soil and Groundwater Investigation and Remediation at a Former Chemical Manufacturing Plant

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This manufacturing facility began operating a new chemical manufacturing plant in Nevada in 1947. The plant was constructed on land leased within a portion of an industrial complex. The plant specialized in the production of a variety of chemicals including chlorinating benzene for use elsewhere. Read more

Remedial Investigation in Fractured Bedrock

Remedial Investigation in Fractured Bedrock

This California site had recycled spent industrial solvents and waste oils for the reclamation process. The property was designated a California State Superfund Site in 1984. Read more | Download PDF

Continuous Air Sampling for Tetrachloroethylene Vapor Intrusion Investigation

Continuous Air Sampling for Tetrachloroethylene Vapor Intrusion Investigation

Hargis + Associates, Inc. (H+A) collected grab and integrated indoor air samples during two sampling events eight months apart at an active print shop located within a hazardous waste site in Phoenix, Arizona. Read more | Download PDF

Groundwater Assessment and Flow Modeling

Groundwater Assessment and Flow Modeling

When an energy company proposed a large-scale renewable energy storage project in the Southwest, they needed a detailed analysis of potential impacts to nearby river flow, residential wells, and groundwater supplies. Read more | Download PDF

PFAS Investigation & Remediation

PFAS Investigation & Remediation

Per- and polyfluoroalkyl substances (PFAS)
contamination impacts the drinking water of more
than 200 million people in the US. Scientists are
just now understanding how to effectively
characterize and remediate this class of emerging
contaminant in groundwater. Read more | Download PDF

Monitoring Wells for MAR

Monitoring Wells for MAR

Hargis + Associates, Inc. is currently providing hydrogeologic consulting services to the Mojave Water Agency (MWA) for the Oeste Demonstration Recharge Project. The MWA is responsible for water resource management for approximately 4,900 square miles of the High Desert in San Bernardino County.  Read more | Download PDF

Aquifer Protection Permit

Aquifer Protection Permit
Hargis + Associates, Inc. (Hargis) was retained to perform the hydrogeologic and water quality assessment, and prepare a report required for the Aquifer Protection Permit. Read more | Download PDF