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 August 10, 2012

Remedial Contractor Continues Site Remediation

Systematic Excavation and Backfill Continues Beneath the Temporary Fabric Structure

Clean backfill stored for use

On-going activities:

  • Continued systematic excavation beneath the temporary fabric structure (TFS), load out, and transportation of the material in lined, covered trucks for proper disposal.
  • Continued backfilling excavated areas of the Site with clean backfill.
  • Continued sorting and load-out of debris from the one-story warehouse building for recycling and disposal.
  • Continued breaking the concrete slab and foundation from the one-story warehouse building.
  • Continued the use of an odor suppressant misting system on the perimeter fence, TFS doors, applied odor suppressant liquid, foam, and plastic sheeting to prevent odors from leaving the Site.
  • Continued the application of water throughout the Site to prevent the formation of dust.
  • Continued maintenance of erosion and sediment controls throughout the Site.
  • Continued general housekeeping activities at the Site.
    Continued monitoring for noise, vibration, and settlement on Site and on neighboring properties.

Backfill being compacted after TFS removed

Recently completed activities:

  • Completed excavation and backfill beneath position #2 of the TFS, relocated the TFS to position #3 along Willow Avenue, and began excavation.
  • Completed shallow excavation areas at the western area of the Site.

TFS being relocated

Future near-term activities:

  • Complete excavation and backfill beneath TFS position #3 and relocate the TFS to position #4.
  • Complete the breaking and removal of the concrete slab and foundation from the one-story warehouse building.
  • Complete sorting and load-out of debris from the demolition of the one-story warehouse building brick, block, floor slab, and foundation for recycling and disposal.
  • Complete backfilling shallow excavation areas at the western area of the Site.

Excavation and Backfill under TFS

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.