Cleanup at Hoboken Gas Works
Hoboken Gas Works Environmental Cleanup – reason to worry?
If I lived in the area surrounding Block 110 in Hoboken (that empty lot on Clinton between 12th & 13th), I might be a bit nervous. Some kind of environmental cleanup will begin in the near future. This is a similar situation that area residents near the Willow14 development uptown are still complaining about…
Read the memo that PSE&G sent out concerning the remediation below.
Former Hoboken Gas Works Site Remediation and Restoration Project
Prior to the widespread availability of natural gas, gas was “manufactured” through a process of heating coal in a specialized oven. These facilities were called Manufactured Gas Plants (MGP) and they were common in many urban areas of the United States during the late nineteenth and early twentieth centuries. Manufactured gas was used for residential and street lighting and cooking. The
manufactured gas process produced byproducts such as coal tar and other chemicals that were used in the chemical, dye and pharmaceutical industries. An unintended consequence of the MGP industry was the release of coal tar and various byproducts to the environment.
A predecessor company of Public Service Electric and Gas Company (PSE&G) operated an MGP in Hoboken from the late 1860’s to the mid 1930’s on two parcels of property that are identified as Block
110, Lot 1 and Block 116, Lot 1 on the City of Hoboken tax map. The focus of this project is Block 110, which is bordered on the north by 13th Street, on the south by 12th Street, on the east by Clinton Street, and on the west by Grand Street.
PSE&G plans to remediate the soil and ground water contaminants on this property beginning mid-2014. To prepare the site for this activity, equipment and personnel will mobilize to the site in the 3rd
quarter of 2013. To remediate the property, PSE&G plans to excavate approximately 95,000 tons of contaminated soil from the site. The excavated soil will be transported to an off-site facility for treatment and disposal. There will also be extraction, treatment and disposal of contaminated ground water. The project is anticipated to last between 15 and 17 months.
Project Planning and Execution
PSE&G has conducted extensive investigations of the site in accordance with the regulations and oversight provided by the New Jersey Department of Environmental Protection (NJDEP). The investigation results have been provided to the NJDEP for their review and approval. A Remedial Action Work Plan, describing the method for the remediation of this property was submitted to the NJDEP in July 2012.
The first few weeks of work will focus on preparing the site, moving construction equipment into place and trailers to serve as temporary office space. The consulting firm ERM will provide engineering
oversight of the day-to-day operations of the project on behalf of PSE&G.
What You Can Expect To See
- Installation of a Cofferdam to Stabilize the Site: The next step in the process will be to install a subsurface steel wall, known as a cofferdam, around the entire perimeter of the property. This will be done using low-frequency technology, to minimize noise. The purpose of the cofferdam is to support the excavation and protect surrounding utilities and structures. The cofferdam will be reinforced by an innovative method that will freeze the soil around the perimeter of the property. This frozen zone of soil provides outstanding structural support and will help to shorten the project schedule.
- Establishment of a Water Treatment System: The contractor will then establish a temporary on site water treatment system for the removal of ground water from the site. As the excavation proceeds, ground water will be pumped through a series of on-site wells and treated on-site prior to being conveyed to the local sewer authority for additional treatment, in accordance with local permits.
- Establishment of a Temporary Enclosure to Control Dust and Minimize Odors: To minimize the disturbances to residents and businesses, PSE&G plans to use a temporary enclosure to help contain dust and potential odors associated with the deep soil remediation activities from being detected off-site. Soils containing MGP-related materials sometimes have an odor similar to that of mothballs. These odors can be detected by the human nose at levels below what can be detected by an air monitoring instrument and well below what would be considered a health concern. The enclosure also will help minimize the noise and dust typically associated with a construction site. It will be removed after the remediation work is complete.
- Trucks Carrying Clean and Treated Soil: Excavated soil will be loaded into trucks for transport to facilities where it will be treated and disposed. Trucks are covered and cleaned prior to leaving the site and will take a prescribed route through Hoboken that will be planned with the help of the City of Hoboken. We have recommended going north on Park Avenue to I-95. Trucks will not travel south of 12th Street. Approximately 35 trucks per day on average are expected during excavation and backfilling operations only.
Outreach to the Public and Coordination with the City of Hoboken
PSE&G will hold a series of meetings with local residents to explain the project and the steps that will be taken to minimize any inconveniences. The meetings will provide information on the project
- Site history and remediation goals;
- Project details and duration;
- Steps to protect the environment;
- Measures to protect health and safety;
- Steps to minimize offsite impacts including odors and traffic impacts; and,
- The company’s commitment to community outreach and communication.
The project success will require close coordination with the City of Hoboken and the residents in the area of the project. Critical aspects of this coordination with the City of Hoboken includes the
timely review and approval of local permits for the construction of the enclosure structures, waste water discharge permits, traffic plans and sidewalk closures. Weekly project updates will be provided
to the public and a toll-free phone number and website will be established for residents to interact with the project.
Call PSE&G direct at 888-574-4835 or via email at HobokenMGP@pseg.com.Hoboken NJ