ELC provided the equipment, manpower, and logistical support to remediate an illegal dumpsite. Approximately 370,000 cubic yards of construction and demolition debris was relocated to a permitted landfill. The project was completed in two phases to accommodate the clients work schedule and budget requirements and the site was completely cleared in 64 working days.

Removed and replaced four UST's at an aviation service center. Four 12,000 gallon steel tanks were replaced with four 20,000 gallon fiberglass coated double wall steel tanks. Approximately 600 feet of double-wall flex pipe was installed, along with new transition sumps and aircraft fuel dispensers. The tank excavation was shored to protect two adjacent UST's and a jet blast fence that remained in service during removal/replacement.

Project consisted of waste management unit (WMU) closure for a beverage processing facility. Two 1.5 million gallon capacity wastewater processing ponds/lagoons were removed from service and ELC was tasked to provide "clean closure" of the WMU's on a lump-sum contract basis. Working closely with the public owned treatment works (POTW), a closure plan was developed and implemented to ensure compliance with the facilities wastewater discharge permit. A storm water pollution prevention plan (SWPPP) was developed and implemented to maintain storm water compliance. ELC provided in-situ treatment of the wastewater for suspended solids, hydrocarbons, and biochemical oxygen demand. The entire volume of wastewater was successfully discharged to the POTW well below the permit levels and without incident. Approximately 3,000 tons of remaining sludge was solidified to meet land disposal restriction (LDR) requirements and the solidified material was disposed at a local landfill as class II non-hazardous waste. The ponds/lagoons were backfilled, graded for drainage, and hydro mulched. Confirmation sampling confirmed that the site met the criteria for clean closure.

ELC provides on-going range cleaning, HVAC air handler filter management, and lead removal services at an indoor weapons firing range. ELC manages the profiling, transport and disposal of the hazardous debris, air filters, and other wastes generated by the facility.

Decommissioned commercial glue and solvent blending/packaging facility. Activities included on-site destruction and removal of six 10,000 gallon volatile solvent storage tanks and eight steel blending tanks, power washing floors and walls, and demolition of process equipment.

Compliance assessments were performed for the fleet fueling systems at eight city service center facilities and City Hall. The systems consisted of gasoline and diesel underground storage tanks (USTs) with underground piping to dispensers and emergency generators. The assessments were conducted to determine compliance with the Texas Administrative Code, Title 30, Chapter 334- Underground and Aboveground Storage Tanks, and Chapter 115- Control of Air Pollution from Volatile Organic Compounds (Stage I and II Vapor Recovery).

ELC subsequently performed various repairs and essential upgrades identified during the assessments. Those included sump replacements, spill bucket replacements, and repair or replacement of various dispenser, overfill prevention, spill prevention, release detection, and vapor recovery components.

Decommissioned metal plating facility for a commercial lending firm. Project included classifying and consolidating over 150 drums of various plating chemicals for recycling and disposal. Acids and chemicals and residues were cleaned prior to demolition of equipment and transport to a metal recycling facility. Floors and walls of former plating line area were washed and acid etched to remove nickel and chromium stains. Chromium and nickel impacted soils were excavated and disposed. Over 60 tons of nickel and chrome plating compounds were packaged and shipped to a facility specializing in recycling the compounds, saving the owner thousands of dollars in potential hazardous waste disposal costs.

ELC was contracted to perform removal and disposal/recycling of small arms and gunshot debris and remediation of lead-impacted sand, gravel, and soil from the Dyess AFB Firing Range prior to demolition of the facility. The Scope of Work for the remedial action was based on the results of an assessment of the plate and pit trap and process knowledge of the range activities. Soil sampling analytical results confirmed that the lead concentrations were highest in the bullet trap and decreased with distance from the trap. The highest concentrated lead-containing material within the bullet trap was drummed and recycled. Soils excavated from the plate and pit trap, range floor, and sidewalls of the range were stockpiled, sampled, characterized, and appropriately disposed as non-hazardous wastes at a nearby landfill. Following excavation activities, confirmation soil samples were collected and were reported as below Texas specific background concentrations or applicable residential PCLs.

Scrap tires had been improperly dumped, burned and buried at a remote site that was planned for a water supply reservoir development project by a regional water district. The project consisted of the excavation and disposal of whole tires, residue and debris from burned tires, and impacted soils. Approximately 1,500 whole and quartered tires were recovered, processed and recycled. Another 2,070 tons of impacted soil and debris was excavated and transported to a local landfill for disposal as non-hazardous wastes.

Approximately 40,000 cubic yards of municipal solid waste was excavated, transported, and disposed during remediation of former landfill. Over 1,500 tires were segregated and transported to a recycling facility. Waste was excavated for construction of a new highway segment and toll plaza. Approximately 1.2 million gallons of groundwater was processed by ELC for use in dust control by the general contractor during the course of the project.

A groundwater treatment system for chlorinated solvents was designed, permitted, and installed by ELC for the client work at a large hotel in downtown Dallas. The system accommodates a water flow rate of approximately 40,000 gallons per day.

Compliance assessments were performed for the petroleum fueling systems at six regional healthcare facilities. The systems consist of jet fuel and diesel underground storage tanks (UST's) with underground piping to dispensers, emergency generators and boilers. The assessments were conducted to determine compliance with the Texas Administrative Code, Title 30, Chapter 334- Underground and Aboveground Storage Tanks, and Chapter 115- Control of Air Pollution from Volatile Organic Compounds (Stage I and II Vapor Recovery). ELC subsequently performed various required repairs and upgrades identified during the assessments. The repairs and upgrades included sump repairs, spill bucket replacements, repair or replacement of various dispenser, overfill, spill prevention, release detection components, installation of corrosion protection and performance of necessary periodic tests and inspections.

The client is contracted with ELC to provide on-going PST facility class B operator services.

Various services provided during decommissioning of Rod Mill facility. Removed aboveground storage tanks (AST’s), process water treatment systems, and an isopropyl alcohol UST. Decontamination of hydrocarbon-impacted facility, removal of copper mud sludge pits, and select demolition of interior rooms, furnaces, large production equipment, and concrete structures.

ELC provided petroleum hydrocarbon abatement and in-situ bioremediation of impacted soils following a crude oil release into a creek tributary at a remote site in East Texas.

Petroleum hydrocarbon abatement and impact assessment following a gasoline release from an AST underground piping system at a fleet maintenance facility. Abatement was focused primarily on microbial bio-enhancement techniques to reduce explosive vapor levels in both on and off-site underground utilities.

ELC was tasked to solidify and remove accumulated sludges in a one million gallon capacity solar evaporation pond waste management unit (WMU) at a lead acid battery recycling facility. ELC drained the pond by pumping the accumulated 500,000 gallons of water approximately one quarter mile through a specially constructed pipeline to the facility's on-Site water treatment facility. The remaining accumulated sludges were treated to meet land disposal restriction (LDR) requirements and solidified in-situ prior to loading into super sacks within the lined area of the pond, working carefully to prevent breaching the liner. Approximately 250 tons of solidified material was disposed at a local landfill as class II non-hazardous waste.

Designed and built storm water sumps at several natural gas compression facilities impacted with glycol and hydrocarbon releases. Storm water sumps with primary and secondary pumping and containment systems were designed to collect and store impacted storm water runoff from compressors.

Responding to a concentrated machinery cleaning solvent release into a storm drain that had migrated to a nearby lake at a city park, an earthen berm was constructed at the drainage outfall which discharged into the lake. The solvent and impacted surface water were removed via vacuum truck and confirmation samples verified that the timely response had prevented a significant impact to the lake.

Demolition of a former wood treating plant consisting of approximately 30,000 square feet of steel and wood-frame buildings. The demolition included several aboveground tanks, copper chromium arsenate (CCA) treatment line equipment, and small rail spur. Over 1,000 cubic yards of chromium and arsenic stained concrete were chemically treated and stabilized for non-hazardous disposal.

Demolition of a former high school and gymnasium consisting of approximately 40,000 square feet of brick and wood frame buildings. Features such as ornate trimmings, dedication stones, and historical artifacts were salvaged and donated to local organizations and citizens. Two juvenile barn owls and two colonies containing approximately 400,000 honey bees were protected and relocated off-site.

Various services provided during decommissioning of Wire Mill facility. Removed five 10,000-gallon diesel underground storage tanks (UST’s), four 10,000-gallon diesel aboveground storage tanks (AST’s), and two 8,000-gallon oil AST’s. Bioremediation included microbial bio-enhancement of approximately 3,200 cubic yards of hydrocarbon-impacted soil, decontamination of lead-impacted facility, removal of sludge pits, and demolition of buildings.

Excavated, transported, and disposed of approximately 5,200 tons of spent molds at a former foundry. Project included profile and disposal of approximately 200 drums of various waste products, removal of an oil/water separator and cleaning the interior of the foundry building.

Lead remediation at an active firing range facility. The bullet stop/deflector equipment was disassembled, cleaned of all lead and reassembled. The remediation activities included removal of high concentrations of lead deposits throughout the facility, power washing equipment and interior surfaces, and screening gravel for spent and unspent ammunition.

Demolition of two auto dealerships consisting of approximately 50,000 square feet of tilt wall and metal buildings and 5 acres of asphalt and concrete pavement. Approximately 2,000 square feet of concrete tilt-wall was demolished under NESHAP standards and disposed as asbestos containing material. Several large hardwood trees were salvaged by relocation to other properties in the area.

Abandonment-in-place of a waste oil UST at a former aircrew training facility. The tank was located in the basement of the facility and the scope of client work included pipe removal, cleaning, and reinforced concrete capping of approximately 750 linear feet of piping trenches.

Removal of a 20,000 gallon diesel UST and decommissioning of a multinational beverage bottling company's fleet service facility. 

Excavated, transported, and disposed of approximately 3,000 cubic yards of lead-impacted soil during remediation of former trap and skeet shooting facility. Project included clearing and grubbing of approximately three acres of dense tree and brush growth area prior to excavation.

Spill response at a water storage facility. Diesel fuel was released into the driveway and landscape areas of an adjacent busy shopping center during fueling of construction equipment. Adsorbents were applied in the driveway and the spilled fuel was quickly removed before it could migrate to storm water inlets along a nearby major highway. Impacted soils were excavated, transported, and disposed and the site was restored with clean fill and new grass sod, soil sampling confirmed that hydrocarbons were remediated to below detection limits.

ELC was tasked to remove and dispose/recycle small arms and gunshot debris and associated Lamella trap baffles at the firing range, remove potential lead dust from two storage rooms adjacent to the range and containerize and dispose of lead impacted soil. The soil met criteria for non-hazardous disposal. New Lamella trap rubber baffles were installed and approximately ten tons of gunshot lead and debris was recycled.

Approximately 8,500 cubic yards of Arsenic-impacted soils at a former dairy facility were excavated, transported, and disposed at a landfill. Site was backfilled with imported clay fill, compacted, and graded. Work was conducted under direction of Texas Commission on Environmental Quality (TCEQ) Voluntary Clean-up Program (VCP).

ELC provides labor and resources for remediation of impacted sites as a subcontractor to various consultants for the State program. ELC has excavated, stabilized, and disposed of lead, arsenic, polychlorinated biphenyls (PCB’s), and hydrocarbon-impacted soils.

Removal of fourteen UST's and hydraulic lifts at an uptown construction site. The project included off-site disposal of approximately 15,000 cubic yards of impacted soil unsuitable for the building sub-grade.

ELC provided petroleum hydrocarbon abatement and impact assessment following a diesel release from the AST system underground piping. Also provided Storm Water Pollution Prevention Plan (SWPPP) and upgrades to AST system including design and installation of leak detection, spill prevention, and overfill prevention equipment.

Approximately 800 cubic yards of solid waste and 100 tires were removed during client work cleanup of creek tributaries and depressions historically used for dumping of garbage and farm-related equipment parts, drums, and tires at unauthorized landfill site.

Approximately 4,000 cubic yards of lead-impacted soil were excavated, transported, and disposed during remediation of a former battery manufacturing facility. Waste streams included hazardous, non-hazardous, and asbestos containing materials (ACM).

Approximately 5,000 cubic yards of petroleum hydrocarbon (TPH) and volatile organic compound (VOC)-impacted soils were excavated, transported, and disposed for construction of a multi-use commercial facility. An additional 54,000 cubic yards of soil were removed as excavation overburden during construction of the underground parking garage. ELC provided shoring of walls, geotextile fabric installation, sub-grade preparation, backfill of underground parking garage walls, and demolition of concrete pavement.

ELC provides on-going stabilization of various waste streams potentially impacted with heavy metals and other Resource Conservation Recovery Act (RCRA) regulated constituents. The wastes are treated on-site to reduce toxicity and comply with land disposal restrictions (LDR) requirements for disposal as non-hazardous wastes. ELC provides the required Waste Analysis Plan (WAP), which outlines the sampling and stabilization procedures that are conducted to ensure compliance with the U.S. Code of Federal Regulations (CFR) and Texas Administrative Code (TAC) solid waste disposal rules.

ELC was tasked to demolish and dispose of plaster and lay-in ceilings (approximately 15,000 sf) throughout most of the two-story building utilizing conventional equipment and industry methods. The purpose of the select demolition was to create access for removal of HVAC duct work with asbestos-containing materials (ACM) by an abatement contractor. Additionally, sheetrock walls (approximately 4,500 sf) and a wooden stage on the first floor were demolished to create access for removal of friable ACM floor tile.

Concentrated nitrates were accumulated at the property boundary and were impacting a nearby off-site well through groundwater migration. Approximately 1,800 cubic yards of clean on-site soil was excavated and stockpiled to create a poly-plastic lined remediation cell. The impacted boundary soil (approximately 2,200 cubic yards) was excavated, placed into the remediation cell and graded for subsequent phyto-remediation, utilizing vegetation to enhance the denitrification process. The client work consisted of excavating impacted areas were then reconstructed to capture residual and leached nitrates in the groundwater for removal to the phyto-remediation cell and enable in-situ bio-degradation using imported carbon-rich feedstock placed into the backfill along with the stockpiled clean soil.