Braun Intertec was awarded a five-year contract from the 934th Airlift Wing after providing quality services during two previous two-year contracts.

The environmental service areas provided to this client include underground storage tank assessment and remediation, Comprehensive Environmental Response Compensation and Liability Act (CERCLA), air and water quality, National Pollutant Discharge Elimination System (NPDES), hazardous waste, environmental impact studies and industrial hygiene.

Challenges

The 934th Airlift Wing’s large project scope required a consulting firm that could provide a wide spectrum of services and technical resources. Key projects conducted for this client are detailed below.

Solutions

Former Rifle Range Investigation
Our remedial investigation of a former rifle range site involved soil sampling, groundwater monitoring, and installation of a test trench to determine the quantity of lead-contaminated soils to be remediated. Subsequent activities now involve long-term monitoring of groundwater at the site.

Remediation System Upgrades, Operation and Maintenance
As part of a CERCLA action, we modified an existing groundwater treatment system to expand, enhance and improve the operational efficiency of aviation fuel recovery and groundwater treatment. The project included conceptual and detailed designs, cost estimates, scheduling, plan preparation and specification procurement, subcontractor management and construction management. The work was coordinated with the installation of a deicing pad on the flight line, which involved extensive administrative and logistical issues as well as special design considerations. We also provided operation and maintenance services for a second remediation system to include minor upgrades and modifications.

Hydrogeologic Investigation
At one complex site within the 934th Air Reserve Station, spilt aviation fuel was contained in an artesian, fractured flow system cut in multiple areas by bedrock valleys. Following a review of the previous work conducted at the site, we developed a conceptualization of the flow system and performed a comprehensive field investigation. The results of the field investigation confirmed the site conceptualization, resulting in more realistic cleanup goals.

Hydrogeologic Evaluation
We reinterpreted the water level data from several monitoring wells and demonstrated that groundwater was flowing in different directions within separate zones of fractures in the limestone aquifer and that contamination in the uppermost fracture zone was likely the result of an off-site source.

Deicing Fluid Investigation
During installation of a deicing system, a portion of the tarmac was removed and we collected soil and groundwater samples for chemical analysis. The analytical results were used to assess whether previous releases of deicing fluid had impacted the soil or groundwater.

Analytical Industrial Storm Water Survey
This survey for the Air Reserve Station involved monitoring four watershed outfalls during storm events over the course of several years.

Asbestos
We prepared base-wide facility asbestos operations and maintenance plans as part of a continuing asbestos program for renovation or demolition of buildings and a tunnel system at the base.

Hazardous Materials Response Plan
The purpose of this plan was to address various regulatory requirements relative to spill planning and preparedness, including requirements for Hazardous Waste Contingency Planning, Spill Prevention Control Countermeasure (SPCC), Minnesota Spill Bill and the Oil Pollution Act.

Hazardous Waste Minimization Plan
We reviewed hazardous waste minimization efforts and updated an existing hazardous waste minimization plan.

Title V Permit Application
Preparation of a Title V Air Quality Permit for the 934th base included review of emission sources and preparation of a chemical emissions inventory.

LUST (Leaking Underground Storage Tank) Investigation
This project consisted of investigating a petroleum release associated with a heating oil underground storage tank and subsequent long-term monitoring.

Groundwater Monitoring
We provided ongoing groundwater monitoring at various project locations on the base.