Enviro-Logical Solutions, Inc. Environmental Engineering Projects

Project Descriptions

Former Tenneco 083-08, Orlando, FL

ELS was contracted by EPEC Oil Liquidating Trust (EOLT) to perform owner-funded petroleum hydrocarbon remediation at a former retail service station. A previous gasoline release from an underground storage tank (UST) system had resulted in relatively widespread soil and groundwater contamination beneath the site and an adjacent roadway.

ELS conducted a streamlined site assessment to characterize the site and contaminant distribution. Based on the results of the site assessment, ELS designed and installed an air sparge/biosparge/soil vapor extraction system to remediate petroleum hydrocarbon contamination present in soil and groundwater. The system consisted of seven air sparge wells, 13 biosparge wells, and five horizontal soil vapor extraction wells. Remediation equipment consisted of a 10 horsepower (Hp) rotary vane air compressor, a 7.5 Hp Becker oilless rotary vane compressor, and a 5 Hp Rotron regenerative blower housed in an enclosed trailer. In conjunction with air/biosparging and soil vapor extraction, a bio-enhancer (Fyrezyme) was periodically injected into the subsurface to enhance bioremediation.

Under a variance that had previously been requested and granted from the FDEP, hydrogen peroxide was injected into the groundwater to increase dissolved oxygen concentration, thereby maintaining an aerobic environment that further enhanced bioremediation. After approximately 2.5 years of system operation, Cleanup Target Levels were reached. The site is currently in Post Remediation Monitoring with closure anticipated by the end of 2008.

Surfactant Washing to Accelerate Free Product Recovery
Naval Observatory (NOBSY) Washington, DC

Naval Facilities Engineering Command (NAVFAC) Washington approached ELS regarding the presence of persistent free product (gasoline and heating oil) in monitoring wells at the Naval Observatory in Washington, DC. Free product was discovered during closure assessment activities of two leaking underground storage tanks (USTs) that were removed. Despite over five years of free product recovery and four years of monthly vacuum extraction events peformed by other consultants, the free product persisted around the former heating oil UST. ELS proposed conducting a pilot test utilizing surfactant injection to aid in emulsifying the free product. FyrezymeTM was subsequently chosen as the injection medium.

The equipment used to inject the surfactant was specifically designed and constructed by ELS in order to ensure that adequate air pressure was applied in order to disseminate the surfactant.

After conducting two injections followed by vacuum events, free product was no longer measurable in the monitoring wells and did not return in subsequent monitoring events. NAVFAC is currently negotiating for site closure.

Spill Prevention, Control and Countermeasure (SPCC) Plan Preparation
Multiple Locations, Southeast U.S.

ELS completed SPCC Plans at seven Navy Bases within Southern Division NAVFAC:

NSB Kings Bay, GA
NCBC Gulfport, MS
NS Pascagoula, MS
NAVSUPPACT New Orleans, LA
NSWCCSS Panama City, FL
NAVSTA Mayport
NAS Meridian, MS

The SPCC Plans were completed to comply with revised 40 CFR 112 Environmental Protection Regulations on Oil Pollution Prevention, published July 17, 2002 by the USEPA. The scope of services at all facilities included inspection of over 400 tanks, drum storage areas, oil-water separators, grease traps, and mobile tanks and an evaluation of the adequacy of containment and the potential for leaks at each site. On-site training related to the new regulations was performed during the site visits.

Fuel storage systems ranged in size from 55 gallons to 3 million gallons. Each fuel storage system was evaluated against “applicable industry standards.” Best Engineering Practices were recommended to bring deficient sites into compliance. Over 700 transformers were evaluated to determine if they were covered under the revised regulations and, if so, what spill control and countermeasure were required. Best Engineering Practices were developed for transformer maintenance and spill control.

The SPCC Plans included an evaluation of applicable industry standards for each containment structure and recommendations for implementation of Best Engineering Practices (BEPs) to prevent discharges from occurring and countermeasures that should be implemented to keep discharges from reaching navigable waterways. Recommendations were also provided for integrity testing of each containment based on site-specific data compiled at each location. Cost estimates were prepared to implement the regulatory requirements and BEPs. All seven projects were completed at a cost of $200,000.

Leak Detection Monitoring
Naval Air Station (NAS) Joint Reserve Base (JRB), Ft. Worth, Texas

ELS performed monthly and quarterly leak detection monitoring for three aboveground jet fuel storage systems that included a storage capacity of nearly five million gallons, 2000 feet of buried pipeline, and six additional underground storage tanks (USTs) and oil water separators at NAS JRB in Fort Worth, Texas.

ELS engineers visited the facility and met with SOUTHDIV and JRB personnel to inspect the facility and design a compliance program that would enable the base to remain in compliance while minimizing personnel requirements. Tracer technology was chosen as the preferred method of leak detection based upon the configuration of the tanks and piping, the method of loading and unloading fuel and the sensitivity of the test.

Monthly injections of a volatile, non-reactive tracer were dispensed into all the fuel distribution systems, and subsurface samples were collected and analyzed to evaluate if a line or tank leak was present. The use of tracer technology provides a sensitivity of two to twenty times that of conventional tank and line testing. The results of the tests were stored in an electronic database, and monthly reports were generated for compliance managers.

On several occasions, minor spills occurred and were detected due to the tracer. Follow-up sampling pinpointed the source of the spill, and localized contamination was remediated. Revenues were approximately $60,000 per year for three years.

AST and UST Compliance Inspections
Naval District Washington (NDW), Washington, D.C.

ELS, with the assistance of PCCI, performed monthly compliance inspections of approximately 150 aboveground and underground storage tanks at seven U.S. Navy Activities within Naval District Washington (NDW) under an ID/IQ contract with EFA Chesapeake. The seven Activities are located in the Washington D.C. area and include:

Washington Navy Yard
Anacostia Annex
Arlington Service Center
Nebraska Avenue Complex
Solomon’s Island Complex
Naval Observatory
National Medical Center

Initial inspections were performed by ELS engineers to identify deficiencies in the existing method of containment, compliance with the Facility Response Plan (FRP), and to develop Best Engineering Practices to repair or improve deficient fuel storage systems. ELS worked closely with NAVFAC and NDW personnel to train them in proper inspection and response procedures.

Monthly compliance inspections were performed at each Activity and additional inspections were performed to evaluate tank integrity and secondary containment areas following rain/snow events.

ELS developed a database to electronically store and sort compliance data compiled during inspections. The inspection results were reported to NDW and each Activity electronically and in a quarterly compliance report. Project revenues were $60,000 in FY 2003 and $75,000 in FY 2004.

Tier I Assessment for UST 60
Marine Corps Air Station (MCAS) Beaufort, South Carolina

Enviro-Logical Solutions, Inc. (ELS) was contracted by SouthDiv NAVFAC to conduct a site assessment in the vicinity of a former UST that had originally been installed in the World War II era at MCAS Beaufort. The UST was discovered and removed during construction of a new building near the base flight line.

ELS initiated the Tier 1 Risk Based Site Assessment in accordance with South Carolina Department of Health and Environmental Control (DHEC) guidelines and standard operating procedures. Prior to conducting site work, three documents were submitted by ELS for approval by SouthDiv NAVFAC including a Work Plan, a site-specific H&S Plan and an Environmental Protection Plan.

Soil sampling and well installation took place after coring through the 12-inch thick reinforced concrete covering the entire work area. In addition to soil and groundwater sampling, assessment activities included a description of site characteristics (geography, regional geology, utility survey, and an exposure analysis to locate potential receptors). Slug tests were performed on three monitoring wells, and sieve analysis of a representative soil sample was conducted.

The risk analysis included an evaluation of potential receptors or human exposure pathways (e.g. basements, utilities, etc.) within a 1000-foot radius of the site, and it was based on both current and predicted land use. Media included in the exposure analysis included air, groundwater, surface water and surficial soil.

A review of the Site Conceptual Model for Current and Future Land Use indicated that the potential for exposure of contaminants to the surrounding area was low. Based on results of the assessment work, ELS recommended the site be issued a No Further Action, and the project was completed.

Spill Prevention, Control and Countermeasure (SPCC) Compliance and Training
Multiple Facilities, Nationwide

PCCI, Inc. was tasked under a Navy SUPSALV Contract to support DESC with spill prevention response and UST compliance at several of their facilities. ELS provided services to PCCI in support of the DOD bulk fuel storage sites in Charleston, SC; MacDill Air Force Base, Tampa, FL; Eielson AFB, Alaska; Tyndall AFB Florida, and Naval Air Station Lemoore, CA. These services included personnel training and compliance inspections for purposes of updating the Spill Prevention Control and Countermeasure (SPCC) Plans and Facility Response Plans (FRP). ELS conducted a review of the bulk fuel aboveground storage tanks (ASTs), underground storage tanks (USTs), associated pipelines, oil water separators, and other equipment; and performed a visual inspection of the containment basins, stormwater systems, drainage patterns and facility layout. Spill scenarios including rail car and truck rack stands, pier-fueling facilities, pipeline ruptures and potential environmental impacts were conducted. On-going and future military construction projects for facility improvements were reviewed. Facility deficiencies were identified and all data collected incorporated into the SPCC Plan and FRP. Recommendations for improvement were made to the facility operators. At Eielson AFB, ELS performed a Best Available Technology (BAT) evaluation required under Alaska regulations for tank issues including leak detection, cathodic protection, alarms and automatic tank gauging. ELS has also supported PCCI for OSRO evaluations, spill drills and annual FRP training.

At DFSP Charleston, ELS was involved with a MILCON project for the construction oversight and permitting for a new large capacity oil water separator. A military construction project to replace the earthen and asphaltic berms at seven 80,000 barrel capacity JP-8 fuel tanks included the addition of a increased capacity 4,500 gpm oil water separator and associated piping modifications. An existing 50 gpm oil water separator was removed and a 500 gpm oil water separator was connected to an underground storage tank that served as a fuel spill collection tank for the 4,500 gpm oil water separator. New drain lines were installed and the stormwater flow direction for the primary drainage ditch at the terminal was reversed. New storm water pipes were also installed. ELS provided engineering services to the prime contractor, documented construction and provided certifications to the Navy and State agency to successfully obtain the industrial wastewater operating permit and meet NPDES discharge requirements.

RCRA Remediation Measures and Oversight
Charleston Air Force Base, South Carolina

ELS was contracted by Arctic Slope Construction, Inc. (ASCI) to provide various environmental services and construction oversight during land disturbing activities and installation of underground utilities. The contract specifications required an environmental quality assurance specialist and an on-site health and safety officer during operations, and ELS personnel fulfilled these positions. The revenues from this project were approximately $150,000.

After reviewing the contract specifications and drawings, ELS developed a site-specific Health and Safety Plan, a Land Disturbance Plan, a Material Disposal Plan, and associated documentation as necessary to comply with the MILCON contract documents. Following approval of the plans by the Charleston AFB, ELS provided continuous health and safety monitoring, and managed all waste removal, storage, transport, and disposal operations. Contaminants of concern included jet fuel, diesel fuel, RCRA metals, pesticides and other related fuels and petroleum products. ELS additionally provided drilling services, sampling and analysis services and site assessment reports. Several existing monitoring wells were in the path of the utility locations and were abandoned to allow for construction. Replacement wells were installed after utility construction.

Each phase of this project was completed within the estimated schedule and costs were well below the projected budget for each phase of the project. Due to tight time constraints ELS worked closely with ASCI to ensure the construction schedule and critical path efforts were met for the environmental portions of the work.

Over 800 tons of material were removed and land disposed or thermally treated at seven different Solid Waste Management Units (SWMUs) located in the area of construction. No accidents occurred, and all documentation has been provided to the complete satisfaction of Air Force Base personnel.

UST Upgrade, Site Assessment and Soil Excavation
Arcadia, Florida

ELS completed a Streamlined Site Assessment (SSA) at this retail service station where a release of gasoline had occurred from several underground storage tanks (USTs) and a release of diesel had occurred from an AST. The SSA included soil sampling at 24 locations around the tanks and the installation of 14 shallow and deep permanent monitoring wells to define the horizontal and vertical extent of soil and groundwater contamination. Direct Push Technology (DPT) was initially used to characterize the soil in the unsaturated zone and to obtain discrete water samples. Following review of the initial analytical data, additional soil sampling and geologic characterization was performed, and shallow and deep monitoring wells were installed at both on- and off-site locations. The contamination study was completed in three months, and the report was approved by the Florida Department of Environmental Protection (FDEP).

Shortly after the contamination assessment was approved, Hurricane Charley did significant damage to the service station. ELS met with the site owner and FDEP and recommended the owner proceed with tank upgrades in conjunction with removal of contaminated soil and dewatering of the site. A source excavation plan was approved, and FDEP participated in the remediation by providing financial incentives to the site owner. The excavation work was coordinated with a UST subcontractor and involved 7 days of dewatering and water treatment with an NPDES discharge, the excavation of 1800 cubic yards of contaminated soil, subsequent backfill and compaction, and the replacement of the surface cover. The entire excavation was completed in five working days.

UST and AST Inspections
Bay Pines, Florida

ELS is conducting monthly inspections for the Bay Pines VAMC's nine USTs and ASTs. With a combined volume of over 124,000 gallons, the tanks provide fuel to on-site generators for use in daily operations as well as emergencies. The monthly visual inspection complies with state and federal regulations by checking for leaks, corrosion and other vulnerabilities that could result in a release of fuel oil. Observations are drafted into a streamlined report and submitted to VAMC each month. Approximate revenues are $5400 per year.

Assessment, Feasibility Studies and Remedial Design
Port Manatee, Palmetto, Florida

A petroleum company contracted ELS to provide environmental services at several petroleum hydrocarbon-impacted areas located at Port Manatee in Palmetto, Florida. Coastal operates a bulk storage terminal with several million barrels of storage capacity, in addition to many miles of pipelines and numerous fuel loading vaults at berths located at the ship channel at the Port. The following work descriptions briefly summarize the environmental services provided by ELS in some of the Areas of Concern.

Area 8: A release at Berth 10 (including diesel fuel, gasoline, No. 6 oil, and Jet A) occurred when a ship rammed the berth, and several buried fuel pipelines were ruptured. Fuel has periodically seeped into the adjacent ship channel through cracks in the concrete dock face. ELS conducted a site assessment and prepared a feasibility evaluation to mitigate the fuel release. Groundwater and soil sampling, POL characterization (forensic fuel typing), tidal influence studies, and aquifer characterization studies were conducted. All wells and soil borings were installed through 36-inch thick concrete. ELS conducted the accelerated assessment within a two-month period. Ultimately, excavation and incineration were recommended as the most expeditious and cost-effective method of site remediation. An aggressive Source Removal Program was initiated and completed in March 1999.

Areas 4 & 5: This Area of Concern includes the bulk storage terminal and pipeline areas. Several fuel releases, (primarily diesel #2, Jet A and kerosene) have historically occurred which have resulted in a large quantity of POL present on- and off-site at the terminal. ELS completed groundwater, soil and POL characterization and developed a comprehensive remedial approach to conduct POL recovery. An extended pilot testing event, combining multi-phase extraction, biosparging, and surfactant injection, was performed to address cleanup of a portion of the facility. The results from the pilot test were used in designing a remediation system to recover free product and remediate soil and groundwater.

A release of No. 6 fuel oil occurred at Area 9 when a transfer pipeline ruptured beneath a railroad track at the terminal. ELS conducted the site assessment and recommended a source removal/Initial Remedial Action to remove the No. 6 oil from the area of concern.

CSX Intermodal Terminal, Orlando, FL

The subject site is a large (>100-acres) intermodal facility where freight is transferred between rail cars and trucks. ELS was initially contracted by GeoSolutions, Inc. to conduct a Closure Assessment at the site following the removal of an unleaded gasoline aboveground storage tank (AST). The tank had been located in an area in which vehicle and equipment fueling, washing, and maintenance had taken place. Although relatively low levels of contamination were detected in the vicinity of the former AST, soil and groundwater contaminant concentrations did exceed Florida Cleanup Target Levels. A Closure Assessment Report was submitted to the Orange County Environmental Protection Division (OCEPD). The assessment results suggested that contamination existed not only as a result of leaks from the former AST containment area, but also due to the equipment washing and maintenance operations that had occurred over several decades.

Based on the Closure Assessment results, the OCEPD requested that CSXI initiate a Site Assessment at the facility. ELS supervised the advancement of 38 soil borings (20 of which were used to collect discrete groundwater samples) and completion of 20 shallow and verticaldelineation groundwater monitoring wells. TPH, benzene, various PAH constituents, and vinyl chloride were among the contaminants discovered at the site at concentrations exceeding their respective cleanup target levels. In addition, approximately three (3) inches of free product was present in one monitoring well. Following several source removal events, free product was reduced to non-measurable levels.

The assessment was concluded with a recommendation for Natural Attenuation monitoring. Dissolved-phase contaminants decreased significantly following the initial sample collection activities, with the latest data indicating that concentrations were approaching closure levels.

Enron Alligator Alley Pipeline Company, a.k.a. Sunniland Pipeline

The Alligator Alley Pipeline was used to transport crude oil by pipeline from Immokalee, on the west side of Florida, to Port Everglades, in Ft. Lauderdale, Florida. The pipeline system was divided into two parts consisting of the Mainline System and the Gathering System.

Enviro-Logical Solutions, Inc. (ELS) was retained by Enron Alligator Alley Pipeline Company to assist in removing selected aboveground structures along the Alligator Alley Pipeline (formerly known as Sunniland Pipeline). The work scope included:

In all, four aboveground storage tanks (ASTs) and numerous valve stations were present along the 110 mile crude oil pipeline, running through three Florida counties - Hendry, Collier, and Broward. The pipeline traversed lands owned by the South Florida Water Management District, the National Park Service, the Miccosukee Indian Tribe, and several private landowners. Therefore, it was necessary to resolve numerous and complex land access and right of way issues prior to receiving permission to complete the work scope.

*Note: Contact for this project is a former ENRON Project Manager.

FDOT Bartow Maintenance Facility
Bartow FL

FDOT retained ELS to assist with the upgrade of the fueling system at the Florida Department of Transportation (FDOT) maintenance facility in Bartow, FL. The scope of services included the cleaning and removal of eight (8) USTs and the installation of four (4) aboveground storage tanks. ELS’ in-house construction crews performed the removals and worked with the FDOT during the UST closure.

ELS installed four (4) new ASTs, aboveground piping and replaced all the underground piping to the dispenser islands. During the underground piping replacement contaminated soil was encountered and ELS crews removed the petroleum contaminated soil and transported the soil to a nearby permitted treatment facility for disposal. UST compliance testing was performed on the entire system and startup and training were provided to FDOT.

Pipeline Release Contamination Assessment and Remedial Design,
Ft. Pierce, FL

An abandoned Bunker C Oil pipeline, owned by the Fort Pierce Utilities Authority (FPUA), was accidentally ruptured by utility contractors. Immediately following the rupture, an estimated 350 tons of potentially impacted soil was excavated from the site and transported to a landfill for disposal. However, it was apparent that residual contamination remained following the excavation.

Enviro-Logical Solutions, Inc. (ELS) was contracted by FPUA to assess the lateral extent of remaining impacts to soil and groundwater. The site assessment completed by ELS indicated that carcinogenic polynuclear aromatic hydrocarbons (PAHs), a component of the Bunker C Oil, were present in soil at concentrations exceeding Florida soil cleanup target levels (SCTLs) but that there was little to no remaining impact to groundwater. Site assessment activities were primarily focused along an approximate 170-foot section of the former pipeline and indicated that contamination was generally confined to a narrow passageway following the former pipeline. ELS was able to streamline the assessment to reduce the number of mobilizations to the site, and strategically reduce the number of samples submitted for laboratory analysis, thereby reducing the overall costs of the project.

The assessment was completed in 2007 and a Remedial Action Plan (RAP) was submitted to address the remaining soil contamination using in-situ bioremediation. The RAP was approved in 2008, with implementation pending final approval of access agreements along the pipeline corridor.

Storage Tank Replacement
St. Petersburg Airport ,Pinellas County Sheriff’s Flight Operations

Enviro-Logical Solutions, Inc. (ELS) was selected by Pinellas County to upgrade the underground storage tanks and dispensers at their Sheriff’s Flight Operations Center at the St. Petersburg Airport. The scope of services included obtaining NPDES permits, installing a dewatering and shoring system, removal of an existing tank pad and two (2) USTs and excavation removal and disposal of approximately 100 yards of petroleum contaminated soil. ELS performed a UST Closure Assessment and prepared a Closure Report for submittal to FDEP.

ELS installed two (2) fiberglass USTs and associated piping, an automatic tank gage and associated monitoring equipment. The system was tested and operator training was performed.

Amoco (Quality Petroleum Corporation) #157
Lakeland, FL

ELS conducted a streamlined site assessment at this convenience store in response to a potential new release suspected near the underground storage tanks (USTs). Monitoring wells were installed, soil and groundwater samples collected, and water table elevations measured as part of the site assessment. The depth to groundwater was approximately 40 feet below land surface. The investigation results delineated the extent of petroleum hydrocarbon contamination in soil and groundwater at the site. Contaminated soil was detected beneath the USTs that would continue to impact groundwater. Following a pilot test conducted by ELS a Remedial Action Plan recommending short-term, episodic air sparging and soil vapor extraction was recommended.

Groundwater remediation was successfully achieved by air sparging, but low-permeability soils underlying the USTs inhibited soil remediation. Four months after remediation was implemented, Quality Petroleum chose to remove and replace the USTs at the facility. ELS recommended conducting soil source removal at the time of UST replacement as the most effective means of remediating the remaining impacted soil beneath the USTs. Following removal of four USTs, approximately 225 tons of petroleum hydrocarbon impacted soil was excavated. Soil samples collected for laboratory analysis from the excavation floor subsequently showed that remaining soil concentrations were below Chapter 62-777, F.A.C. Cleanup Target Levels.

Following UST removal/source removal activities, replacement monitoring wells were installed. Groundwater samples were collected, and a Natural Attenuation Monitoring (NAM) Plan was recommended. Groundwater analytical results collected during the NAM period have shown that petroleum hydrocarbon concentrations are below Chapter 62-777, FAC, and the site has received regulatory closure from the FDEP.