Services

---

E&E performed removal and closure of two underground storage tanks and associated underground piping at Naval Air Station (NAS) Mayport. As a subcontractor to Seres Engineering, E&E permitted the removals using our Pollutant Storage Contractor License.  The UST closure was conducted in accordance with FDEP guidelines and with regulatory oversight by City of Jacksonville and FDEP’s Northeast District. All metal (USTs, piping, rebar, and miscellaneous items) and broken concrete were recycled. All recovered diesel/oil, sludge and petroleum contact water was transported offsite under manifest for proper disposal. Soil and groundwater samples were collected from the UST, piping, and sumps as required for petroleum system closure. Site restoration included backfilling, grading, and resurfacing of all disturbed areas. E&E prepared and submitted the Tank Closure Reports documenting the field activities, PID soil screening, soil laboratory sample location, photographs, and results. 

E&E self-performed the petroleum system closure at the Bilge Water Plant, Naval Air Station (NAS) Pensacola. As a subcontractor to Seres Engineering, E&E permitted the tank and underground piping removal using our Pollutant Storage Contractor License. The petroleum system closure included removal of two-10,000 gallon used oil above ground storage tanks (ASTs), two-20,000 used oil ASTs, approximately 300 feet of underground petroleum piping, three concrete containment areas, and concrete oil sump. E&E performed the petroleum system closure work under project-specific Accident Prevention Plan and Work Plan. 

E&E’s skilled operators used a hydraulic shear mounted to an excavator to cut large openings in the ASTs to allow removal of all oil and sludge with a super vac truck (6-inch diameter intake). After the tanks were cleaned, they were cut into manageable pieces with the hydraulic shear. The use of the hydraulic shear alleviated personnel safety issues of confined space entry (tank cleaning) and hot work, fall protection, and heat exhaustion issues (manual tank cutting). E&E prepared and submitted the Tank Closure Report which documented the field activities, PID soil screening, soil laboratory sample location and results. The project was completed in three weeks – on schedule and without any problems.

E&E performed environmental restoration services for Basewide Remedial Investigation (RI) and Conceptual Site Model (CSM) refinement at Site 40, Naval Air Station (NAS) Whiting Field.  This large-scale environmental restoration project followed the CERCLA process, with regulatory oversight by EPA Region 4 and FDEP.   E&E performed this environmental restoration work as a subcontractor to Resolution Consultants, under project-specific UFP-QAPPs. 

As part of the soil assessment, E&E performed soil and soil gas sample collection using DPT. This complex and unique project required that continuous dual-tube soil sampling be performed concurrent with soil gas collection using post-run tubing (PRT) sampling on 10-foot sample intervals to the water-table. To accomplish this, E&E designed and custom built specialized PRT tooling to successfully perform the work to client data quality objectives and UFP-QAPP specifications. Where DPT reached its limit of technical practicability (i.e., approximately 80 to 100 feet bls), E&E used sonic drilling to collect deep soil samples for laboratory analyses.

For groundwater assessment, E&E installed groundwater monitoring wells using sonic drilling and performed vertical aquifer profile groundwater sampling. This sampling was more complex due to the deep groundwater sampling intervals required for this project (depths between 100 and 220 feet bls). E&E provided management of investigation derived waste (IDW) for these field efforts, including waste sampling and profiling, container labeling/tracking, and transportation and off-site disposal of soil drill cuttings and purged groundwater at approved receiver facilities.

E&E performed QA/QC inspections and oversight. We prepared and submitted Daily Quality Control Reports (DQCRs), modeled on USACE guidance, to the client throughout project execution.

Refinement of this CSM provided a holistic assessment of the soil and groundwater quality across the Base, combining multiple lines of evidence and cohesive basewide data to guide appropriate remedial alternatives evaluations. 

E&E conducted soil remediation services at Tyndall Air Force Base (AFB) at multiple sites including historic landfills, former disposal areas, and historic small arm firing ranges (SAFRs). As a subcontractor, E&E performed assessment/sampling support, health and safety oversight/air monitoring, soil excavation, waste characterization/profiling, and transportation and off-site disposal of impacted media at approved receiver facilities. Unique work elements of these projects involved identification/sampling/disposal of asbestos containing materials (ACM), separation of inert debris from impacted soil via power screening, recycling of concrete and asphalt from the landfills, and complex work logistics of SAFR cleanup on a co-located school.

Under a USACE Mobile District contract, E&E’s Professional Geologist managed the excavation of hazardous soil and shoreline restoration along Pensacola Bay. The impacted area was a manmade drainage canal contaminated with creosote from an adjacent Superfund Site. The project included a detailed assessment of the environmental conditions, development of a corrective action plan, permitting, and implementation of the corrective action. The project location was in a residential neighborhood; therefore, extreme care was taken to eliminate or minimize dust, noise, and traffic disruption. Prior to construction, erosion controls were installed to prevent sediments from the project activities from entering the surface waters. Daily inspections of erosion controls (coir logs, silt fence, turbidity barriers) were conducted by our certified erosion control personnel to ensure the sediment controls were working as designed. After removal of contaminated sediments, the manmade canal was filled with native sands, graded and revegetated to match the existing shoreline. The project was completed on schedule so that the Youth Sailing Regatta could be held at Pensacola Yacht Club.

Our team conducted shoreline restoration at Postl Lake on Eglin Air Force Base. The goal of the project was to excavate upland soil and shoreline/near shore sediments contaminated with pesticides from former disposal activities and to restore the shoreline and upland areas to their natural state. The project included permitting, project plans, base badging/access control, H&S oversight, erosion control implementation, transportation and disposal of contaminated soil/sediment, backfilling, grading, and complete site restoration. Contaminated sediments and debris were removed to expose the original sandy bottom of Postl Lake. After excavation and disposal of the contaminated soil and sediment, the uplands and shorelines were restored to their original grades using approved native backfill.  Bank stabilization was performed and the disturbed areas were replanted with wetland species to match the original conditions. After completion of this project, the site was granted a clean closure.

E&E’s Professional Geologist managed the operation and maintenance (O&M) of the First Division Road Landfill at Fort Benning, GA in accordance with the O&M Plan. Prior to field activities, a Site Safety and Health Plan/Accident Prevention Plan was prepared and approved. The landfill operation consisted of monthly monitoring of the gas concentrations at 39 gas vents on the landfill, adjusting the methane flow from the gas vents to ensure methane did not migrate off-site, conducting maintenance on the submersible pumps, managing leachate accumulated in the collection system, O&M for landfill gas extraction system (blowers, compressor, candlestick flare, tank level sensors, telemetry system, and control panels), monitoring/calibrating telemetry readings, inspecting and adjusting over one mile of methane piping, and collecting gas readings on the perimeter methane monitoring wells.

E&E was awarded a performance-based task order by USACE, Mobile District to conduct Site Maintenance and General Upkeep; Groundwater Sample Collection and Analysis; Air Vapor Measurement; Leachate Collection System Inspections and Reporting. E&E conducted groundwater sampling in accordance with EPA Region 4 Contract Laboratory Program guidelines. E&E also conducts regular inspections of the landfill cap, air vapor measurements of gas vents, and general upkeep (land use controls). E&E has also enhanced the existing onsite pollinator habitat with the addition of butterfly bushes.

In-Situ Soil Blending was conducted for a FUD site in accordance with the GAEPD Corrective Action Plan (CAP)- Part B. The chosen remedies of the CAP Part B were In-Situ Soil Blending, via excavator, followed by In-situ Chemical Oxidation. The injection of a calcium peroxide solution was accomplished through dedicated injection points. Prior to going to the field, a site-specific UFP-QAPP Work Plan addressing all procedures involved in the CAP implementation was submitted and approved. E&E’s Professional Geologist was the competent person for the excavation, soil blending and injections. Upon completion of the remediation activities, groundwater monitoring was implemented to measure the progress of the active remedial action. Selected existing wells and newly installed wells were used for the groundwater performance monitoring events.

A Remedial Investigation (RI)/Feasibility Study (FS) was conducted at a former fire training area. Common fire training exercises included the burning of waste solvents, spent fuel, and oil in open pits to practice fire-fighting techniques. E&E staff conducted field investigations to support the preparation of a comprehensive RI Report which included a Baseline Risk Assessment (BRA) and a FS to evaluate potential remedial alternatives to address chlorinated solvent contamination at the site. Necessary CERCLA documentation was also submitted to facilitate completion of the remedial process up to the final Decision Document stage.

E&E’s Professional Geologist implemented a corrective action for a FUD Site in Brunswick, GA which included: well abandonment, soil excavation/off-site disposal, ORC application, site restoration, installation of monitor wells and performance monitoring. The soil contamination was associated with a two former USTs. The chosen remedial action was the removal of contaminated soils in order to prevent further impacts to groundwater. Approximately 2,037 tons of contaminated soil was excavated and direct loaded into dump trucks for offsite disposal. Confirmatory samples were collected from the side walls of the excavation to document removal of contaminated soil. After the excavation, 3,400 pounds of slow-release Oxygen Release Compound-Advanced (ORC-Adv®) pellets were evenly distributed across the excavation floor to accelerate the rate of aerobic contaminant biodegradation in the groundwater. 

After excavation, backfilling, and site restoration efforts were completed, the monitor wells were replaced. Performance monitoring was conducted quarterly basis for one year followed by one year of semi-annual sampling. The findings from each monitoring event were summarized in a monitoring report prepared in accordance with the GA EPD Monitoring Only Report Template. 

E&E’s Director of Remediation managed the subcontract to implement a closure plan for an 18-acre C&D landfill. The project including relocation of solid waste, construction of side slope/perimeter channels, retention pond improvements, placement of clean fill cover, grading, topsoil placement and hydroseeding.

E&E’s Pollutant Storage Contractor has supervised the removal of numerous USTs, ASTs, and fuel systems; conducted soil and groundwater sampling; and prepared tank closure reports for DOD and private facilities.