Sep 02

Special Update September 2, 2020


Starting tomorrow, September 3, 2020, the Harrison manufactured gas plant (MGP) remediation contractor will begin soil removal activities within the area marked “Pilot Study Area” in the figure below. Excavation of a second area in the northeast section of the remediation project, also marked, is expected to begin on or about Tuesday, September 8, 2020.

In both areas, the work will seek to remove approximately the top 7 feet of soil below ground surface in preparation for In Situ Solidification and Stabilization (ISS) treatment of deeper impacted soils. ISS involves mixing impacted soils in place, below ground, with stabilizing agents such as Portland cement and blast furnace slag.  This work within the Pilot Study Area is anticipated to begin September 9, 2020.

Excavated soil will be removed from the site by trucks for disposal or reuse at a New Jersey licensed facility.

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. While the project team is committed to minimizing them, odors similar to fresh asphalt will at times persist. Control measures (such as water mist, foams and vapor suppressants, plastic sheeting and sand cover) will be used as needed to control potential dust and odors during excavation and non-work periods, including evenings and weekends. 

The Perimeter Air Monitoring Plan designed specifically for this site’s conditions is being implemented. For more information, you can visit the project website: www.HarrisonMGP.com.

Please feel free to share this information with others and let me know if you have any questions or concerns. The regular Weekly Update will be issued this week on Friday, ahead of the Labor Day holiday. In observance of the holiday, no work will be performed on Monday, September 7, 2020. 

Kelly Henry

Community Liaison on behalf of the Harrison Remediation Group


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