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NYSDEC Oversight

The NYSDEC provides oversight of activities conducted by the major responsible parties at various Greenpoint petroleum remediation sites in Brooklyn, New York. NYSDEC’s subcontractor (Ecology and Environment Engineering and Geology P.C. [E&E]) conducts monthly field oversight of PRP activities to assist NYSDEC in developing a better understanding of the day to day investigation and remedial activities that occur in the Greenpoint area and report any pertinent issues to NYSDEC’s project manager.

The following sections summarize recent activities observed at the various Greenpoint remediation sites in Brooklyn, New York.

Date of Oversight Observation: June 11, 2025

Former ExxonMobil Terminal

Description of Activities

1. E&E/WSP observed the on-site treatment system in operation and recorded current operating parameters of the air strippers from the control screen.
2. E&E/WSP observed routine treatment system maintenance.
3. E&E/WSP collected a sample of the on-site effluent for visual observation and compared it to a previously collected sample taken from the Newtown Creek in the vicinity of the outfall.
4. E&E/WSP was informed Site wide well gauging took place on June 10.
5. E&E/WSP was informed recovery wells RW-C, RW-K and RW-24 will be redeveloped later this month to improve product recovery.

 Planned Activities

1. Routine treatment system maintenance.

ExxonMobil Off-Site Plume Area

Description of Activities

1. E&E/WSP observed the off-site treatment system in operation and recorded current operating parameters of the air strippers from the control screen.
2. E&E/WSP observed routine treatment system maintenance.
3. E&E/WSP collected a sample of the off-site effluent for visual observation and compared it to a previously collected sample taken from the Newtown Creek in the vicinity of the outfall.

Planned Activities

1. Routine treatment system maintenance.

KM Terminal (Former BP Terminal)

Description of Activities

1. Antea informed E&E/WSP that the groundwater treatment system and the product recovery pumps are running as designed except for recovery well RW-9 which is off-line while the groundwater line is being cleaned, and a new airline is being installed.
2. Antea and E&E/WSP observed a small amount of petroleum sheen within the bulkhead boom containment area, but no sheen was observed in Newtown Creek outside the boom containment area.

 Planned Activities

1. Routine treatmnet system and product recovery pump maintenance.
2. Continued repair/cleaning work on recovery well RW-9.

Former Paragon Oil Terminal/Apollo Street Creek Parcels

Description of Activities

1. No AECOM personnel we onsite during E&E/WSP's site visit.
2. AECOM informed E&E/WSP via email that the groundwater treatment system is still offline and AECOM is continuing to work with subcontractors to get the system back up and running.
3. AECOM informed E&E/WSP that area-wide well gauging of site wells occurred on June 10th.
4. AECOM informed E&E/WSP that carbon changeout, GW sampling, gauging, vapor survey, and slab repair is scheduled for July.
5. AECOM informed E&E/WSP that the lower SSDS is currently down and AECOM is evaluating the cause of the issue.

 Planned Activities

1. Continued repairs of the groundwater treatment system.
2. Continued evaluation and repairs of the lower SSDS.

Newtown Creek Observations

Former Paragon Terminal Bulkhead
E&E observed conditions along the upper, middle, and lower bulkheads, within the containment areas, and in Newtown Creek in the vicinity of the bulkhead. No sheens or sediment plumes were observed in or outside any of the containment areas in Newtown Creek.

Meeker Avenue Bulkhead
E&E observed the conditions of Newtown Creek at the end of Meeker Avenue in the vicinity of the ExxonMobil Off-site outfall and adjacent storm outfalls. Storm outfall D was observed to not be discharging water. No sheens or sediment plumes were observed in Newtown Creek within visible distance upstream and downstream of the outfalls. This observation took place about 3 hours before the 10:29 AM 3.6’ AMSL high tide.