Weekly Update, Week Ending August 16, 2019

Posillico Environmental, Inc (Posillico), National Grid’s Remediation Contractor de-mobilized the mixing excavator for off-site maintenance and modifications The existing electric line to the on-site building was relocated away from the remediation area with assistance from PSE&G.

The results of the ISS pilot study are being evaluated. Soil erosion and sediment control measures were inspected and maintained. Five Community Air Monitoring Program (CAMP) stations were operated 24 hours a day to monitor for the presence of volatile organic compounds (VOCs) and particulates at the Site’s property line.

Two-Week Outlook

Posillico will load and transport stockpiled excavated soils for off-site disposal at the approved permitted disposal facility. Posillico will continue preparations for the full-scale ISS activities, including installing a new grout silo and re-mobilizing the mixing excavator.

General hours of operation will be Monday through Friday, 7:00 AM to 4:00 PM.