ML ChartierEnvironmental Services. Response, Experience, Safety.
Project Summaries ML Chartier Project Summaries

Project Summaries

THERMAL DESORPTION FOR MICHIGAN MUNICIPALITY

M. L. Chartier, Inc. was selected by a Michigan municipality toremediate a site where a high concentration of gasoline had contaminated the soil. The site was close in proximity to residential homes and the St. Clair River, and was utilized by both vehicular and pedestrian traffic. Mobilization of our medium temperature thermal desorption unit took approximately three days to complete. Arrangements were made with the local natural gas company to hook directly into a six inch supply line, in order to provide sufficient fuel for the unit to operate at the proper temperature. The thermal desorption unit operated 24 per day, and 7 days per week.

During the first days of processing, samples were taken every 50 yards until 800 cubic yards were processed. After analysis confirmed cleanup goals were being achieved on this initial volume, the sampling frequency was reduced to one sample for every 200 cubic yards. All samples were analyzed for BTEX and PNA's. Appropriate levels levels were achieved on all soils that were processed, less than 10 parts per billion for the BTEX constituents, and less than 330 parts per billion for PNA's. Despite the close proximity to residential homes, the city did not receive any public complaints for the duration of the project. Almost 40,000 cubic yards of soil was processed in 3 months, on time and within budget.

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LAGOON CLOSURE FOR AUTOMOTIVE CLIENT

M. L. Chartier, Inc. was selected by the client to conduct an investigation at this site where waste oil sludges were placed. During the site investigation, sludge and soil samples were collected for bench testing to determine the best possible alternatives for either solidification or filter pressing. Based on the results, solidification was selected over filter pressing as the most cost effective approach. Before the actual solidification began, the area was surveyed to determine the total volume of sludge in place. The pond was sectioned out into a 50-foot grid from which sludge depth measurements were taken. Once the data had been gathered and computed, the client was advised of the total cost of the project which included the removal, transportation and disposal of the stabilized sludge at an industrial waste landfill.

M. L. Chartier, Inc. mobilized within 10 days after all data was gathered to begin site preparation, which included the construction of roads and entrance ways into the lagoon. To minimize the generation of dust, dry additives were injected under the sludge surface before mixing. The injection machine proceeded down the length of the lagoon solidifying a width of approximately 15 feet. Once the equipment reached the end of the pond, it was able to track out onto the solidified material and continue the solidification down the length of the pond. This procedure continued until all the sludges were stabilized. The total amount of sludge treated was approximately 12,000 cubic yards. The job was completed on time and within budget

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DECONTAMINATION OF AN OIL RECLAMATION SITE

M. L. Chartier, Inc. was selected to perform the remediation of an abandoned oil reclamation site under the direction of the U.S. EPA. Approximately 35 tanks were on-site varying in size from 400 gallons to 30,000 gallons. Most of the tanks contained PCB contaminated materials with concentrations between 5 parts per million to 400 parts per million. All tanks were cleaned of all sludges and oils and decontaminated using a triple rinse method with diesel fuel. These sludges were bulked and/or drummed for incineration off-site.

Once wipe samples confirmed that the PCB concentrations were below 10 parts per million, the tanks were properly disposed of off-site. After all the tanks were removed from the site, excavation of contaminated soil began. Approximately 300 tons of soil was removed from the site and disposed of at a PCB landfill. When testing had confirmed that the acceptable cleanup level was achieved, the areas were backfilled and the site was brought back to its original condition. The job was completed within 60 days, on time and within budget.

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DECONTAMINATION, REMOVAL & DISPOSAL OF BATTERY CHARGING AREA/BATTERY MANUFACTURING PLANT

M. L. Chartier, Inc. was awarded a contract to remove a battery charging area which was contaminated with sulfuric acid and lead dust. Before the demolition and decontamination procedures started, borings were taken around the entire area by an outside laboratory. A total of 12 core samples were analyzed for total lead.

Personnel and equipment were mobilized to begin the washdown and demolition of the area which totaled 20,000 square feet. The actual battery charging area was approximately 8,800 square feet in size and constructed of a plastic material approximately 1/8-inch thick. The entire plastic enclosure was washed and dismantled, and shipped to a Class II landfill for disposal. After all the plastic was removed, personnel began decontaminating the structural steel. Once clean, this steel was removed and shipped to a scrap yard.

Since the existing floor was uncontaminated, it was removed in sections and shipped to a concrete recycler. An area approximately 2,800 square feet was prepared for the construction of a new acid pit. Special brick and membrane materials were used to ensure the long-term integrity of the new pit. The rest of the floor was removed and replaced with 8 inches of new concrete, and floor drains and sewer systems were repaired as needed. The project was completed on time and within budget.

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MANUFACTURING COMPANY, MICHIGAN

The closure project for this manufacturing plant included site investigations, sample collection, treatability evaluations, filter pressing, solidification and disposal. Site preparation included the construction of service roads to lagoon access points, staging pads with sumps for contaminated soil, a truck scale area, and a decontamination pad. Filter pressing of sludges on-site was a cost saving alternative since the material was a RCRA waste due to a high concentration of lead. This resulted in a 30% volume reduction making this the most cost effective approach.

After processing, a total of 228 tons of filter cake was removed and disposed of at a secure hazardous waste landfill. The resulting filtrate was analyzed and characterized for proper disposal. Analytical results showed that this wastewater filtrate was non-hazardous and arrangements were made for disposal at a county wastewater treatment facility nearby. A total of 228,000 gallons of water was removed from the site using bulk tankers.

After the removal of the wastewater, all soil was excavated and staged for sampling procedures, resulting in 6,900 tons of hazardous soil and 3,800 tons of non-hazardous soil which was properly disposed of off-site. The project was completed in 7 weeks, on time and within budget.

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EXCAVATION & DISPOSAL OF SOILS AT RAILROAD SIDING, MICHIGAN

M. L. Chartier, Inc. was awarded a contract for the cleanup of spilled product along a railroad siding. Several meetings had taken place before the job was to begin to plan out all strategies and scenarios to ensure a successful response. Because the railroad spur was an active line, it was imperative that the work be completed over the weekend so that the system would be back in service by 8:00 a.m. the next Monday morning. Staging areas were constructed and fill material was brought on-site. During the 48 hour work time, 4,500 cubic yards of contaminated soil was removed and placed into either a staging area or into gondola cars supplied by the railroad.

During the cleanup activities, the railroad removed approximately 150 linear feet of track. M. L. Chartier, Inc. removed the ballast and replaced contaminated subsoils while the railroad handled the replacement of timbers and rails. Approximately 1,000 cubic yards of impacted soil was transported to a local Class II landfill, and the remainder was transported out-of-state for disposal. Periodic visits back to the site were scheduled as analytical results became available. During these revisits, the excavated soils were placed into railroad cars for disposal at a later date. The job was completed on time and within budget.

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CONTAMINATED SOIL REMOVAL, OIL WATER SEPARATOR, AND INSTALLATION OF SEWER SYSTEM

M. L. Chartier, Inc. was selected to close in place 2 storage tanks, install a 6,000 gallon oil/water separator and approximately 1,000 L.F. of sewer piping, in conjunction with excavating approximately 4,000 cubic yards of contaminated soil. During excavations, the side walls and the bottom of the site were sampled using field instruments to determine how far excavations would proceed. Upon receiving clean verification from confirmatory samples, the area was then backfilled to grade. The project was completed in 60 days and within budget.

 

 

 

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EXPLORATORY EXCAVATION OF ABANDONED SITE

M. L. Chartier, Inc., the Michigan Department of Natural Resources (MDNR), and their environmental engineering consultant worked together on this site to perform exploratory excavations. The purpose of the action was to determine the extent of contamination and also to expose buried drums. Staging areas were constructed to house the excavated drums. These drums were staged into categories for compatibility. At each exploratory excavation site, all personnel were equipped with Level "B" safety equipment, and two-way communication systems were established between the operators and the on-site coordinator.

After a drum was uncovered, an excavation unit equipped with a drum grappler device removed the drum and placed it in the staging area, where it was numbered. A dual sample was taken from each drum, one to be retained by the engineering consultant, the other one to be retained by the MDNR for testing at a later date. As areas of contamination were identified, any impacted soil was removed and placed into drums and moved to the staging area. The total excavation consisted of 15 sites where approximately 700 drums were recovered, sampled, and placed in the staging area. The total project was completed in 15 days and within budget.

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ROADWAY CONSTRUCTION AT A GAS STORAGE FACILITY

M. L. Chartier, Inc. was the successful bidder for a one mile roadway construction project for a major gas storage production facility located in St. Clair County. The project consisted of clearing densely wooded areas, wetland mitigation/reconstruction, surveying, subgrade soil removal, installation of 10,000 cubic yards of new subgrade, compaction, installation of geotextile fabric, and placement of 17,000 tons of 21AA gravel. Construction of new well head areas was also performed to include the installation of a 20 mil polyethylene liner.

After mobilization of equipment was complete, clearing and grubbing operations commenced. Subgrade soil was determined to be unstable to support the new roadway and was subsequently removed and stockpiled. Clay fill was then placed and compacted to support the new 21AA gravel road. Geotextile fabric was placed prior to the installation of the 21AA gravel. Drainage ditches were constructed along the roadway along with the installation of culverts. Wetlands were reconstructed to abate the wetlands that were removed during roadway installation. The project was completed within 60 calendar days, on time and within the projected budget.

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REMOVAL OF UNDERGROUND STORAGE TANKS

M. L. Chartier, Inc. was awarded a contract, by a general contracting firm, to remove 9 underground storage tanks (UST). The tanks varied in size from 500 gallons to 10,000 gallons. Materials stored in the tanks were waste oils, hydraulic oils, quench oil, solvents, and thinners. The general contractor mobilized bulk tankers to the site to remove any reclaimable oils or solvents. Once this was completed, the cleaning crews started removing sludges from the bottom of the tanks. After the bulk of the material was removed, personnel entered the tank using Level "B" safety equipment.

Each tank was completely washed and rinsed until a zero "LEL" level was met. The tanks were then excavated and shipped off-site for proper disposal. During the excavation, it was discovered that four of the tanks had been leaking and impacted the surrounding soil. Samples were taken of the soil to determine how far the contaminants had migrated. Based on sample results, it was necessary to continue the excavation and remove approximately 500 cubic yards of soil. The excavated areas were backfilled, compacted, and capped with asphalt. This project was completed in 15 days, on time and within budget.

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REMOVAL OF TWO 5,000 GALLON WASTE OIL TANKS

M. L. Chartier, Inc. was awarded a contract to remove 2 underground storage tanks at a service center for a major utility. During the excavation of the tanks, it became evident that both vessels had leakage. Testing was performed to determine the extent of the oil and solvent migration. Once the degree of contamination was calculated, site preparation began. The location of the tanks made it necessary to use steel sheet piling to protect the surrounding structure as the contaminated soil was excavated from within the perimeter of the sheeting. After excavation, the soil was again tested to insure that it was clear of contamination. Upon verification, the area was backfilled, sheeting removed, and the site restored to its original condition. The project was completed on time and within budget.

 

 

 

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DRUM SAMPLING & STAGING

M. L. Chartier, Inc. was selected to supply equipment and personnel to locate, stage and sample approximately 75 drums. A holding area was constructed utilizing sand and visquene, and the entire work area was secured by temporary fencing. As the drums were located and staged, they were each given an identification number. Two samples were taken from each drum.

One sample was sent to a laboratory and the other sample was retained for future use. Any soil around the drums showing contamination was removed and stockpiled in the staging area. After samples were analyzed and a disposal site was selected, M. L. Chartier, Inc. remobilized equipment and personnel to overpack the drums, and load them into a hazardous waste hauling vehicle. The project was completed within 3 days.

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SITE CLEARING, CONSTRUCTION OF WELL PADS

M. L. Charlier, Inc. was selected as the successful bidder by a major Michigan natural gas storage company to construct various sized stone pads for the installation of natural gas storage wells located in the mid Michigan area. The project consisted of clearing wooded areas and farm land, surveying, subgrade removal, subgrade installation, compaction, installation of geotextile fabric and placement of 27,000 tons of 21AA gravel. Landscape berms were constructed along with seed and mulch of the berm areas.

The appropriate equipment was mobilized to the site and soil erosion and sediment control measures were implemented. Clearing operations began along with movement of subgrade material that was above finish elevation. This material was removed, placed and compacted into areas that were below finish subgrade elevation. A total of 25,000 yards of soil was removed and placed into other areas. Geotextile fabric was placed on the finished subgrade and 21AA stone was then placed and compacted. Service roads were also constructed and maintained during the duration of the project. This project was completed within 90 days and within the projected estimate for the project.

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EXPLORATORY EXCAVATION AT AN ABANDONED LANDFILL

M. L. Chartier, Inc. designed and built two drum staging areas, properly lining them to prevent spread of contamination, constructed service roads into the contaminated area of landfill, and set up air monitoring equipment trailers. All excavation and sampling activities were performed using "Level B" safety equipment. Exploratory test pits locating contaminated buried drums were dug.

In many instances, drums were punctured with a remote drum opener to gain access for sampling. Samples were finger printed and composited on-site in a mobile laboratory before being taken off-site for analysis. Drums were overpacked in recovery drums and moved to the drum staging areas for inspection by the state agency. Test pits were then backfilled. The project was completed on time and within budget.

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REMOVAL OF PCB CONTAMINATED SOIL

M. L. Chartier, Inc. was awarded a project to complete the removal, transportation and disposal of 850 tons of PCB contaminated soil. The project consisted of removing Hazardous PCB contaminated soil along a Michigan railroad right-of-way (ROW). PCB contaminated oil spilled on the client's property and migrated onto the railroad ROW. Two major fiber optic cables were located in the ROW and required removal of soil to within inches of the active fiber optics cable. Telephone company representatives were present during the excavation activities surrounding the fiber optics cable.

Appropriate work zones were prepared and excavation of the soil commenced. Upon removal of the contaminated soil, the area was sampled and the environmental consultant conducted on-site analysis of the soil samples. Any remaining contaminants were excavated. All soil was transported to a licensed RCRA landfill for disposal. After soil analysis confirmed cleanup levels had been met, the excavation area was backfilled with clay and compacted to 95% density. The project was completed within the time estimates and within the projected budget

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