A new data center located in Mesa, Arizona, needed assistance in complying with air permitting requirements for the Maricopa County Air Quality Department. They looked to Geosyntec for support in obtaining the required air operating permit application and for continued compliance following permit issuance.
The project involved the assessment and rapid remediation of a former electrical component and aerospace manufacturing site where previous investigations had identified light non-aqueous phase liquids (LNAPL) and dense non-aqueous phase liquids (DNAPL) near a nest of 9 former underground storage tanks. The project included site characterization activities to refine the site conceptual model for the purpose of completing a remediation Feasibility Study and preparing a Remedial Action Plan. Membrane Interface Probe (MIP) and Cone Penetration Test (CPT) tooling were used to rapidly build a high density dataset for delineating the nature and extent of the plume in preparation for developing and implementing the Corrective Action Plan. The remedial strategy for the site incorporated a combined remedies approach to rapidly remediate impacts to soil, soil vapor, and groundwater at the site within and aggressive schedule to facilitate redevelopment of the property.
Nammo Defense Systems, Inc. (Nammo Defense) is an aerospace and defense company that is one of the world’s leading providers of ammunition and rocket motors. Their largest US facility occupies approximately 550 acres in Mesa, AZ for development, testing and manufacturing of these propellant-based products, aircrew escape systems and automobile airbag components.
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