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Nov 25

Weekly Update November 30, 2020

PSE&G Former Harrison MGP Site: Weekly Project Update – Week of 11/30/20

The PSE&G site remediation group and its environmental contractor, Sevenson Environmental Services, Inc., are conducting activities to remediate soils at the Harrison former Manufactured Gas Plant (MGP) site. Work began in July 2020 and is expected to end by December 2022. Work is being performed in two phases.

These updates are being issued weekly throughout the duration of the project to provide a review of key activities performed at the site over the past week as well as a look ahead to the next week’s anticipated activities. They are also posted to the project website: www.HarrisonMGP.com where more information about the project scope and history also can be found. If you have any questions or concerns about the project, please call the PSE&G Harrison Project Information Line at (855) 356-2383 or email us at comments@harrisonMGP.com.

PLEASE TAKE NOTE:  
Thanksgiving Holiday
:  No work will be performed Thursday, November 26 and Friday November 27 in observance of the Thanksgiving Holiday. Site security will be maintained. 

Hyatt Line Gas Main:  Restoration of the Cape May Street roadway and curbing is expected to continue after the Thanksgiving holiday. No work will be performed on Thursday, November 26 and Friday November 27 in observance of the Thanksgiving Holiday. The work is not related to the MGP remediation. 

Anticipated Work for the Week of November 30 – December 4

Remediation Activities – (See Figure 1 below and on the website)

  • Continue clearing of subsurface obstructions and debris within ISS areas. This work will generate sounds from breaking of concrete and removal of metal piping and other materials.   
  • Perform ISS in areas 1A and 1B.  
  • Transport excavated soil and concrete from the site by trucks for disposal or reuse at a licensed facility.
  • Begin backfilling and compaction in completed areas while maintaining continuous vibration monitoring.
  • Operate temporary wastewater treatment facility to control groundwater and surface water accumulations during work activities. Treated water will be discharged in accordance with a permit issued by the Passaic Valley Sewerage Commission. 
  • Maintain soil and sediment erosion controls. 
  • Install temporary fencing around active work areas.

Continue Monitoring & Mitigation Measures

  • Apply dust suppression and odor controls, as needed, during remediation activities. 
  • Continue vibration monitoring between remedial work and the nearest onsite buildings.
  • Continue to perform perimeter air monitoring when soil disturbance work is in progress. The majority of air monitors are located each day based on location(s) or work being performed. There are two stationary air monitors – one by the Laboratory Air Intake and the other by the garage. 
  • Maintain site security 24 hours a day, 7 days a week.

NOTE:  Odors associated with some constituents can often be detected at levels that are well below what would be considered a health concern and often below what can be detected by an air monitoring instrument. The MGP project continues to:

  • Apply vapor mitigation sprays in the excavation area.
  • Apply odor suppressing foams in the excavation area and in the trucks while being loaded.
  • Use odor suppressing foams more frequently and in greater amounts.
  • Cover project soil piles with plastic when work is completed.
  • Perform daily odor assessment walks around the MGP remediation work areas to determine if and at what levels odors may be detected beyond the work area fenceline. 

Other control measures, including water mist and sand, will be used as needed to control potential dust and odors during excavation and non-work periods, including evenings and weekends. The MGP project performs continuous air monitoring during working hours around the site, including monitoring stations by the welding shop, laboratory, and gym buildings. Confirmatory air samples are taken weekly and all results have been below our action levels. 

Work Completed November 23 – November 25

Remediation Activities

  • Excavated soil to remove approximately the top 7 feet of soil below ground surface in preparation for ISS.
  • Performed ISS in areas 1A and 1B.
  • Continued pre-trenching and subsurface demolition to cut and cap underground utilities and remove old infrastructure. 
  • Mobilized remediation equipment and personnel to the project site as needed.
  • Installed and maintained additional soil and sediment erosion controls. 
  • Installed temporary fencing around active work areas.

Monitoring & Mitigation Measures

  • Applied dust suppression and odor controls during pre-trenching activities. 
  • Continued vibration monitoring between remedial work and the nearest onsite buildings.
  • Continued to perform perimeter air monitoring when soil disturbance work is in progress. 
  • Maintained site security 24 hours a day, 7 days a week.

Community Outreach 

  • Issued 17th weekly update email to representatives of the Town of Harrison, Hudson County Regional Health Commission, and property managers of Vermella, Steel Works, and Cobalt Lofts apartment complexes, as well as the owners of Joia Restaurant and officials of Amtrak.

The PSE&G remediation project team is committed to: conducting work safely on the job site; minimizing impacts from the project to those outside of the project area; keeping PSE&G non-project personnel, the local community, elected officials, and all interested parties informed of our progress; and enhancing the property’s continued productive use. The team will follow the guidelines and directives issued by the New Jersey Department of Health, the CDC and the Occupational Health and Safety Administration, as applicable, for maintaining a clean, safe and healthy work environment. PSE&G personnel and contractors are required to participate in social distancing and wear appropriate gloves and face coverings during all work activities

All work is being performed in accordance with the guidance and regulations of the New Jersey Department of Environmental Protection (NJDEP), and under the oversight of the Licensed Site Remediation Professional (LSRP) of record. 

FIGURE 1