Conducted archaeological monitoring and excavation of 29 acres containing three archaeological sites in preparation for a solar array construction project. Ensured compliance with Section 106 of the National Historic Preservation Act (NHPA), developed a Memorandum of Agreement with the Arizona State Historic Preservation Office (SHPO), Native American Tribes, and Luke AFB. Approximately 3,000 features were uncovered within a 12-month period in challenging weather conditions adjacent to an active F-16 fighter jet runway. (Aerostar SES LLC) 

Completed a five-year contract to conduct surveys, develop management plans and abatement designs, and oversee the abatement of identified asbestos-containing materials (ACM) and LBP. Under the contract, 61 task orders were issued for surveys at DoD installations throughout the Southeast, including Texas, Louisiana, Mississippi, Alabama, Georgia, Florida, South Carolina, and North Carolina. More than 250 buildings were evaluated as a part of the contract. (Aerostar SES LLC)

In support of Fort Irwin’s net zero solid waste goals, provided environmental compliance support services by updating multiple compliance plans for Fort Irwin and areas of the Mojave Desert. Collected data from approximately 100 sites and provided an Emergency Planning and Community Right-to-Know Act (EPCRA) inventory update. Provided environmental compliance plan updates for the business emergency/contingency plan, environmental compliance outreach materials, hazardous waste and hazardous materials management plan, the integrated solid waste management plan (ISWMP), the Rotational Hazardous Waste/Hazardous Materials Guidebook, and the toxic release inventory report.
(Aerostar SES LLC)

Conducted RIs under the Military Munitions Response Program (MMRP) at two munitions response sites (MRS): the 2,633-acre Explosive Disposal and Demolition Range and the 4,074-acre Rocket and Rifle Range. Digital Geophysical Mapping (DGM) and intrusive investigation techniques determined the nature and extent of munitions and explosives of concern (MEC) and identified munitions debris. The investigations included an assessment of potential contaminants in soil, surface water, and sediment related to historical munitions use. This project was conducted under the Formerly Used Defense Sites (FUDS) program following the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) process. (Aerostar SES LLC)

Conducted a CERCLA RI and response action/interim remedial action (IRA) to characterize environmental conditions, define the nature and extent of per- and polyfluoroalkyl substances (PFAS) contaminants, and implement removal actions at two sites. Based on the interim proposed plan (PP), the preferred remedial alternative for both sites was hydraulic control using pump and treat with granular-activated carbon (GAC). (Aerostar SES LLC)

Performed design-build fuel system repairs at the bulk fuels facility and the airfield facility to bring fuel systems into compliance with current operating standards and specifications. Project highlights: demolition of outdated systems; construction and commissioning of new skid-mounted fuel transfer systems at the existing truck fill stands and truck off-loading systems; installation of control valves, filter separators, thermal relief valves, flow meters, and dual wall jet fuel underground piping; modification of fences and gates; resealing of concrete joints; connection of new power supply to the bulk fuel facility; reconfiguration of emergency fuel shut off (EFSO) systems and grounding system; 200+ pipe support retrofits for Diesel 1, Diesel 2, and JP8 fuel pipelines; and installation of cathodic protection (sacrificial anode). (Aerostar SES LLC)