Major Projects Update
10/20/2009
GES is engaged in a long-term program at the terminal and refinery complex on Petty’s Island NJ, a 300-acre property in the Delaware River. GES has helped the client (with extensive negotiation, press, and community involvement) to implement a plan for site cleanup and donation to the Natural Lands Trust. Restoration includes remediation, demolition of tanks, infrastructure, and buildings, and construction of a nature education center.
In the Mid-Atlantic region, GES was awarded an environmental response contract for a regional pipeline system that reaches from Texas to New Jersey. GES will be providing on-call emergency response services from Virginia to the northern system terminus.
GES’ Houston team is working at active Baytown and Beaumont refineries. These sites present unique challenges related to scale of impacts, range of COCs, and the range of available management options to meet project objectives. A multi-office GES team has been working at a NY-metro airport site since October 2008. This rapid response, with daily vacuum truck operations on an extensive well manifold system, has recovered over 100,000 gallons of free product. Installation of a permanent system is underway. The team includes NY, NJ, and corporate IRSP personnel.
GES has been working at the former St. Paul, MN terminal since 2007. A remediation system (groundwater pump & treat, NAPL recovery, air sparge and vapor extraction) has been in operation since 1996. The system focused remediation efforts on source area and NAPL recovery, with sparge and vent (barrier) construction to mitigate dissolved-phase migration to the Mississippi River. GES completed a remedial alternatives analysis in 2008; after system upgrades and feasibility studies, the team is now preparing for a 2010 system expansion.
In Greensboro, NC, GES is part of a multi-consultant team receiving the NGWA Outstanding Ground Water Remediation Project Award. McMillan-McGee’s Electro-Thermal Dynamic Stripping Process, ET-DSP™, heats the subsurface using electrical current; this allows the recovery and treatment of steam, heated groundwater, liquid and vapor-phase hydrocarbons, and soil gases via conventional means. GES applied sophisticated modeling techniques to estimate product migration rates and determine the optimal heating duration. Since March 2007, two of four remediation zones have reached the site-specific mass removal goal of 80%, with recovery of 529,000 lbs of petroleum hydrocarbons.
In Lockport, IL, GES is working at the site of a 2001 release associated with a pipeline gravitometer station. The easement crosses a country club property, with nearby residences and potable water wells. GES became the consultant in April 2009 and is evaluating the feasibility of adding soil vapor extraction to the in-place groundwater and product collection system.