Projects

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.

Central Tucson Per & Polyfluoroalkyl Substances Project

  Central Tucson Per & 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: Central Tucson PFAS Project: Hargis is assisting ADEQ in protecting the Tucson Central well field by investigating the nature …

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In-Situ Bioremediation of VOCs in Groundwater

Initial site investigations for this former southern California manufacturing site found soil and groundwater had been impacted by Volatile Organic Compounds (VOCs). The former facility was used for the development, manufacture, and assembly of electronic components, with historical releases of chlorinated solvents that impacted localized areas of soil and groundwater. Clean-up of this 14-acre site …

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RCRA Closure at a Former Manufacturing Facility

This former manufacturing facility was used for design, testing, and manufacturing of electronic medical testing equipment. Sampling of soil, soil gas and groundwater revealed the presence of Polychlorinated Biphenyls, (PCBs) and volatile organic compounds (VOCs) including tetrachloroethylene (PCE), 1,1-dichloroethylene (DCE), 1,1,1-trichloroethane (TCA), and 1,1-dichloroethane (DCA). Site remediation is overseen by the United States Environmental Protection …

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Remediation System Upgrade for Improved Mass Recovery

Hargis + Associates, Inc. was retained by the owners of a former aerospace manufacturing facility to provide operations and maintenance (O&M) oversight for an existing remediation system in Los Angeles County, CA. The soil and groundwater at the site were impacted with volatile organic compounds (VOCs), including trichloroethylene, tetrachloroethylene, and methylene chloride, and the semi-volatile …

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RCRA Remediation and Monitoring

When managing environmental liabilities and due diligence for aerospace sites around the globe, this Senior Engineering Manager relies on a small group of technical consultants he can trust to protect his company’s long-term risk. In positions like this, it’s critical to hire high quality consultants who understand aerospace’s unique needs. Hargis has been a trusted …

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Navigating the Superfund Cleanup Process

Beckman Instruments, Inc. operated an electronic instruments manufacturing facility in Porterville, California. The facility utilized a solar evaporation pond for the temporary storage of liquids. Initial site investigations revealed the presence of chlorinated solvents in a shallow groundwater system in the vicinity of pond. 1,1,1-Trichloroethane, trichloroethylene, Freon 113, 1,1-dichloroethylene, and 1,1-dichloroethane were detected in groundwater …

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Strategic Replacement of Water Production Wells

Hargis is currently providing hydrogeologic consulting services to the San Carlos Irrigation and Drainage District for the strategic replacement of poorly-producing and/or damaged irrigation wells. Replacement wells have been deemed necessary so that the SCIDD can continue to satisfy its water demand largely with groundwater as the future availability of Central Arizona Project water diminishes. …

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

Hargis is currently assisting the Arizona Department of Environmental Quality (ADEQ) in protecting the Tucson Water’s Central well field by investigating the nature and extent of per- and polyfluoroalkyl substances (PFAS) contamination in the regional aquifer and remediation of the plume by ex-situ treatment.  The Central well field serves as the primary drinking water supply …

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Environmental Remediation on Native Lands

Environmental investigations and remediation on Native lands requires a unique set of qualifications: environmental experts who understand how to navigate the complexity of environmental regulation and jurisdiction, consider cultural sensitivities and mitigate adverse impacts to cultural values and environmental resources, maintain stakeholder engagement, and promote environmental justice. A Native American tribe retained Hargis as its …

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