Scope of Work:
During construction of a new interchange to connect the Turnpike with I-79 and US-19, crews encountered several abandoned oil wells that could potentially contaminate groundwater. PADEP environmental regulations require that abandoned wells be properly terminated (plugged) including removal of all drilling equipment and debris.
Neumeyer Environmental used a mobile oil well drill rig and redrilled the wells to a depth of 2,000 feet. We removed the old casings above that elevation and plugged the abandoned drill casings to that depth to prevent potential groundwater contamination by crude oil.
Re-drilling Abandoned Oil WellWell RiggingLocating Abandoned Oil Well Production CasingPumping ActivitiesWell Purging
Scope of Work:
Neumeyer Environmental conducted an abandoned oil and gas well closure in accordance with PADEP requirements to prevent migration of contaminants into the adjacent soils, atmosphere, groundwater, local drinking water wells and surface waters. Neumeyer Environmental scope of work included constructing access to the site, installing erosion and sediment controls including a sediment pond to collect the well cleaning decant to prevent migration of sediments. We removed the product pipe and multiple well casing to a depth of 2000 feet below ground surface while injecting grout to ensure the product producing zones were adequately sealed. We placed the standpipe and restored the site to pre-existing conditions.
United States Steel Corporation
Clairton, PA – 1997 – $350,000
Scope of Work:
Contaminated ground and surface water from a coal-tar retention basin threatened to leach into a nearby stream. The water was highly contaminated with organic compounds.
Neumeyer Environmental installed a groundwater leachate collection system and sheet pile cut-off wall to divert contaminated groundwater and prevent it from entering the adjacent stream. Neumeyer Environmental designed and built a french drain to carry water from behind the wall and transfer it into a sealed manhole. Submersible pumps were installed in the manhole to transfer the water to a wastewater treatment facility. Multiple level switches in the manhole activate pumps as water levels reach specified levels and convey the water to the on-site treatment plant. Pump controls, activation indicators, and flow monitors were remotely mounted in a control building for operator access and protection from the elements.
The new system captured and treated the contaminated water and prevented it from entering the stream.
Mosites Construction Company
Warrendale, PA – 2002 – $155,000
Scope of Work:
The Pennsylvania Turnpike Commission constructed a new interchange at Warrendale (Milepost #31). An abandoned gasoline station built in the 1950s had occupied part of the construction site. The gas station’s ten gasoline and diesel tanks, ranging from 3,000 to 10,000 gallons capacity, had leaked fuel into the soil. Cleanup was required prior to the beginning of new construction.
Neumeyer Environmental excavated 3,000 tons of contaminated soil and transported it to a thermal processing facility where it was cleaned for recycling for use as roadway subbase on the project. Neumeyer Environmental removed and disposed of 100 tons of hazardous soil, 1,000 gallons of contaminated liquids, and the remnants of the underground fuel system. We also decontaminated and disposed of the old fuel tanks.
Our ability to recycle the contaminated soil substantially reduced our client’s disposal costs. The construction project proceeded on clean land. This project was completed on-schedule and on-budget.
Mosites Construction Company
Duquesne, PA – 2008-2009 – $1,200,000
Scope of Work:
The Regional Industrial Development Corporation (RIDC) constructed a roadway to convey traffic over an existing rail line to Duquesne Riverplace at the old Duquesne Works Steel Mill property. The property was approved as an ACT 2 site and is currently under phased redevelopment.
Management of on-site soils required extensive sampling and analysis, use of personal protective equipment, segregation of contaminated materials and removal and management of subsurface debris due to the historical steel-making activities.
Neumeyer Environmental evaluated and managed approximately 40,000 cubic yards of impacted soils in preparation of the more than 3,000 linear feet of road construction. We worked in close coordination with the prime contractor to develop approaches that facilitated project completion and minimized costs.
Neumeyer Environmental performed the earthwork, demolition and on-site placement of surplus materials and debris such that the majority of the materials were able to be beneficially re-used on-site. Remnants of asbestos containing materials were encountered during the excavation that required abatement during portions of the work. Neumeyer Environmental was able to minimize the schedule impacts that may have resulted from this previously-unknown development. The project required approximately 14 months to complete from sampling through final excavation
OLYMPUS DIGITAL CAMERADust Supression During LoadoutHoe Ram Subsurface Structures
