Activity Updates

National Grid provides activity updates for neighbors of the Clifton former MGP site as developments related to site remediation occur. The updates will describe the work that is on-going at Operable Unit 2 (OU-2), located at 25 Willow Avenue, to remediate the former main operating portion of the Site that was closed in 1957. Two off-site areas with MGP residuals are located adjacent to the OU-2 Site at 89 Willow Avenue and between Edgewater Street and Bay Street at 1 Edgewater Street.

Remedial activity for Operable Unit 1 (40 Willow Avenue) has been completed and the parcel is now in the Operations, Maintenance & Monitoring (OM&M) phase. There will be no further updates for OU 1, but monitoring and other reports will be placed in the Key Documents/Major Reports section of this website as they are completed and approved. The Report Archive section under the Key Documents tab of this website will include all of the Updates.


Update Week Ending July 06, 2012

Remedial Contractor Continues Site Remediation

Barrier and Buttress Cement Bentonite Walls along Bay Street and Willow Avenue Are Now Complete

Systematic Excavation Beneath the Temporary Fabric Structure Begins

On-going activities:

  • Initiated systematic excavation beneath the temporary fabric structure (TFS), load out and transportation of the material in lined, covered trucks for proper disposal.
  • Continue sorting and load-out of debris from the one-story warehouse building for recycling and disposal.
  • Continue breaking the concrete slab and foundation from the one-story warehouse building.
  • Continue installation of dewatering well sleeves, well points and sumps.
  • Continueinstallation of the storm water bypass system along Willow Avenue.
  • Continuethe use of an odor suppressant misting system on the perimeter fenceand TFS doors; applied odor suppressant liquid, foam and plastic sheeting to prevent odors from leaving the Site.
  • Continuethe application of water throughout the Site to prevent the formation of dust.
  • Continue maintenance of erosion and sediment controls throughout the Site.
  • Continue general housekeeping activities at the Site.
  • Continuemonitoring for noise, vibration, and settlement on Site and on neighboring properties.

Recently completed activities:

  • Completed the demobilization of the CBW contractor and equipment from the Site.
  • Completed the preparation and load-out of excavated cement bentonite wall (CBW) spoils from the TFS and transported the material in lined, covered trucks for proper disposal.

Future near-term activities:

  • Completed the demobilization of the CBW contractor and equipment from the Site.
  • Completed the preparation and load-out of excavated cement bentonite wall (CBW) spoils from the TFS and transported the material in lined, covered trucks for proper disposal.

Community Air Monitoring Plan Summary

Community air monitoring, initiated in February 2012, continues as intrusive activities are conducted by the remediation contractor at OU-2. There were no exceedances of action levels during this period.

Staten Island Community Board #1
One Edgewater Plaza
Room 217
Staten Island, NY 10305
Phone #: (718) 981-6900
 Borough President’s Office
Borough Hall
Staten Island, New York 10301
Phone #: (718) 816-2057

If you have any questions or comments about the work on the site, please use the Site Telephone Hotline at 718-982-7349.