Environmental Services

Diamond Oil property before redevelopment

 

Diamond Oil property after redevelopment

 

 

 

Soil excavation and groundwater bioremediation application

 

 

 

Interceptor trench for chemical oxidation and bioremediation application

 

 

 

Quick Domenico Model for Closure of Monitored Natural Attenuation

 

 

 

Environmental Due Diligence on an Urban Lot

Brownfield Redevelopment of a Former Fuel Oil Distribution Facility

A Brownfield property in Coatesville Pennsylvania had been historically used as a gasoline service station and bulk heating oil distribution terminal.  Around 1990 the heating oil business was closed and the property was abandoned, but several storage tanks and the infrastructure associated with the oil terminal and historical uses remained.  Between 1990 and 1997 the storage tanks were removed, however, limited work was done and the condition of the property deteriorated.  The property was eventually sold and the new owner began to renovate the property and restore the existing buildings.  TGS was hired to address his environmental regulatory requirements. Located within a State designated Enterprise Zone, the property qualified as a Special Industrial Area under the Pennsylvania Land Recycling Act (Act 2).  TGS assisted the owner in obtaining a grant for the environmental work, and in accordance with the SIA provisions of Act 2, a Baseline Remedial Investigation was conducted to characterize the site conditions.  The findings from the investigation indicated there was not an imminent threat to human health or the environment associated with the property.  The owner was provided with an Act 2 release of liability, and the historic building was redeveloped into a local community health center.

 


Soil and Groundwater Remediation for a Real Estate Transaction

Concentrations of gasoline constituents, benzene, toluene, ethylbenzene and total xylenes (BTEX) were identified in the soil and groundwater originating from a leaking fuel oil tank. The historic contamination was preventing the pending sale of the property.  Approximately 100 tons of contaminated soil was excavated and incinerated at an off-site asphalt recycling facility.  To address the contaminated groundwater and obtain Pennsylvania Department of Environmental Protection (PADEP) closure, an in-situ bioremediation was designed and implemented. Within three months of initiating the bioremediation BTEX concentrations in the groundwater were below laboratory detection limits.  PADEP closure was obtained and the sale proceeded.

 


Chemical Oxidation & Bioremediation for Shallow Groundwater Contamination

Four leaking gasoline underground storage tanks (LUSTs) and impacted soil had been removed from a former automobile dealership.  However, three years after removing the tanks there had been no progress in the remediation of the property.  Persistent concentrations of BTEX in the groundwater prevented the pending sale of the property.  TGS was hired and after reviewing the existing information and conducting a supplemental pilot study, an in-situ interceptor trench using chemical oxidation and bioremediation additives was designed and implemented.  Within the first month of remediation, BTEX concentrations were within acceptable levels for closure and a "No Further Action" letter was obtained from the state regulator.

 


Groundwater Remediation at an Automobile Garage - Managing Cleanup Costs

An automotive repair facility had a leaking underground storage tank on the property.  The extent of the groundwater contamination was minimal and there was no imminent threat to human health or the environment.  The client planned to continue operating the property and wished to manage cleanup costs over time.  Therefore a combination of both active and passive remediation objectives were planned.  Initial in-situ bioremediation injections were used to reduce a large percentage of contaminant mass.  The remaining concentrations were then allowed to mitigate through natural attenuation processes.  A simple fate and transport evaluation was completed to demonstrate that the remaining residual concentrations of benzene around the source area would not migrate to the property line above the State's cleanup standard.  Attainment of the groundwater Statewide Health Standard was demonstrated and an Act 2 release of liability was provided to the property owner.

 


Phase I/II Environmental Site Assessments

Employees of Taylor GeoServices have performed hundreds of Phase I/II Environmental Site Assessments (ESAs)  across the Country, including Pennsylvania, New Jersey, Delaware, Maryland, West Virginia, and the east coast from Connecticut to Florida.  Our ESAs will follow the industries ASTM and EPA Standard Practice.  More stringent requirements are followed when requested.  Site conditions vary considerably from inner city redevelopment projects, to commercial and industrial properties, to rural farmland, with the scope of work varying accordingly to meet the various conditions or the time constraints required by the client.  At the completion of the project clients are provided with a comprehensive report that outlines our findings, conclusions and recommendations obtained during the ESA.  For our client's who are dealing with complicated environmental conditions and pending real estate transactions, the value in a TGS ESA comes from our ability to provide the consultation, recommendations and financial estimates in a timely manner based on our wealth of project experience and practical knowledge.

 

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