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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Why a Multiple Lines of Evidence Assessment is the Best Approach to Demonstrate Plume Capture for Groundwater Remediation Systems

You are the environmental manager of a property where your company’s past business practices have impacted groundwater quality.  These impacts may have originated from leaking underground storage tanks, inadequately lined (or unlined) process or liquid waste storage ponds, drywells, or waste injection wells for example.  Under regulatory agency oversight and approval, you have identified and …

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men handling rig

What’s the Best Environmental Drilling Technology for My Project?

How do you select the best environmental drilling technology for monitoring well and soil sampling? Here’s an overview of applications and advantages of six common drilling methods.

4 Strategies in Environmental Remediation: A Case Study in CERCLA and RCRA Processes Including Closure and Delisting

Remedial investigations and cleanup actions at federal and state hazardous waste sites are a complex, lengthy, and expensive endeavor. Environmental, Health, and Safety Managers can’t afford to go it alone.  By working with a team of experienced environmental consultants, responsible parties can proactively manage their risk, reduce long-term liability, and control the cost of environmental …

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Four Issues Unique to the Environmental Protection of Native Lands 

Native land matters are complicated and unique, especially when it comes to environmental protection.  It’s difficult to find environmental consultants who can navigate the complex regulatory framework while protecting the interests of the tribe.  Environmental investigation and remediation activities at culturally significant project locations require an added level of discriminating and subtle effort that only …

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2022 Market Insights from Dr. Hargis

Environmental risk and compliance managers are often tasked with educating a wide range of stakeholders on complex issues.  They need buy-in to secure budgets and other nonfinancial resources to protect the interests of their organizations and build long term resiliency.  This is not an easy endeavor in a time of significant environmental threats and a …

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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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Remediation System Optimization: When Is It Time to Evaluate your Existing Remediation System?

Is your remediation system performing at its peak?  Is it costing you more than it should in operations and labor costs?  Environmental managers often struggle with tight budgets and limited resources.  Answering these questions can result in innovative solutions for improving performance and reaching site closure quickly, efficiently, and in a cost-effective way.  In this blog, Project Engineer Ross Horton offers practical …

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How to Obtain Regulatory Approval of a Monitored Natural Attenuation Remedy

Regulatory agency approval of monitored natural attenuation (MNA) as the chosen remediation method for groundwater at your contaminated site can mean a significant savings in cleanup costs.  How do you go about effectively convincing regulatory agencies that MNA is an appropriate remedy for your site?    In this blog, Senior Hydrogeologist Stacia Prazen explains how …

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