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Project Status

Station B Update - City of New Haven

12/31/20

1. Main Activities During Reporting Period

Developing the following Project related documents:
- September 2020 Groundwater Summary Report.
- English Station Boiler 13 Interim Remedial Measures Memo.
Completed the plugging and capping of the onsite stormwater drain(s).
Completed the sampling of the English Station First Floor & Interstitial Fill area(s).
Continue to work with the State of Connecticut along with Property Owner(s) of Parcel A & B (and as necessary, the developer) in order to obtain signatures/acceptance on the current approved RAPs pursuant to requirements in the CTDEEP and EPA approval letters
Continue to refine overall Project schedule and cost estimate(s) associated Main Power Plant scope.
Continue to work with AVANGRID Procurement to identify a contractor for the soil remediation activities on Phase I.
Perform required stormwater inspections of the site erosion and sediment controls for the Phase I activities approved under CT DEEP permit number GSN003422.
TRC performed bi-weekly inspections of the Significant Environmental Hazard (SEH) areas and submitted inspection reports to UI.
Updated of Project Website.

2. Upcoming Activities

Perform quarterly groundwater sampling event.
Submit to CTDEEP:
- September 2020 Groundwater Summary Report.
- English Station Boiler 13 Interim Remedial Measures Memo.
Work with EPA and CT DEEP on the authorization of the Phase I - Parcel B PCB RAP.
Commence certain Phase I PCB and other COC soil remediation activities covered in the Phase I RAPs, such as:
- Evaluate off-site sources for suitable soil/clean fill to be used as cover material for site-wide restoration.
- Sample debris piles.
Work with State of Connecticut on obtaining property owner’s signature for the Parcel A PCB RAP and Non-PCB Soil RAP (Parcel A&B).
Pursuant to approvals from CTDEEP, perform supplemental environmental media sampling efforts inside of English Station (Western Side, Boiler 1-12, & Boiler 13/14).
Work with CT DEEP on any follow-up comments for the Scope of Study for English Station Eastern Interior Boilers 1 through 12 and High Pressure Boilers 13 & 14 (hazardous building materials).
Work with CT DEEP on Project schedule and scope.
Continue to refine Project estimates for Main Power Plant.

Site Security

Performed as needed maintenance on system infrastructure.
Continue to maintain the security measures put in place by, and acquired from, the current property owners.