Next Gowanus Canal Community Advisory Group General Meeting: Tuesday, July 23, 6:30 p.m.

Please join us for our July 2024 General Meeting, on Tuesday, July 23, from 6:30 p.m. to 8:30 p.m., conducted via Zoom video conference.

In order to join the meeting, you must pre-register, here:

https://usepa.zoomgov.com/meeting/register/vJIsdeusrjkvGeNZXWh8T9KUHNlpP4-pw7w

DRAFT AGENDA (all times are approximate)

6:30 – 6:45 p.m.: Welcome and CAG Member Introductions

6:45 – 7:45 p.m.: EPA Updates and CAG Q&A

7:45 – 8:00 p.m.: Public Comment/Questions

8:00 – 8:30 p.m.: CAG Business and Committee Updates

  • CAG Working Group
  • Administrative Committee
  • Archaeology and Historic Preservation Committee
  • Land Use Committee
  • Outreach Committee
  • Water Quality/Technical Committee

8:30 p.m.: Adjourn

Guests are always welcome to comment and ask questions using the chat function.

All Gowanus CAG meetings are open to the public, unless specifically noted otherwise.

June 25, 2024 Update from EPA Region 2 on the Status of Work In and Around the Gowanus Canal

In-Canal Update

  • Supplemental dredging near the flushing tunnel to remove recently deposited debris is ongoing
    • Work began on May 9th
    • Work is anticipated to be completed by the end of July which will allow for reactivation of the Flushing Tunnel
    • NAPL was discovered in the Flushing Tunnel, but the source is uncertain
    • The Trust is monitoring dissolved oxygen levels which have decreased as water temperatures have increased
  • Grouting of the armor mats in this area is being conducted concurrently as areas are dredged
  • Carroll Street Bridge
    • 65% design for repair work is anticipated to be submitted this week for review by the Trust
    • Final design is expected later this summer
  • RTA 2 Construction
    • Began on June 20th with the probing of bulkheads to check for potential obstructions
    • Bulkhead design completion and coordination with property owners is ongoing
      • Bulkhead support construction will begin in September
    • Access dredging will begin this week (anticipated June 25th) and will remove a significant amount of debris from within the turning basins

CSO Retention Tank Update

Red Hook Tank

  • Perimeter wall is approximately 90% complete
    • 104 of 116 panels have been excavated and concreted as of June 21st (see attached figure)
    • Work is anticipated to be completed in July
    • Next phase of work anticipated to begin in fall 2024

Owl’s Head Tank

  • Demolition of buildings south of 5th Street began on May 21st
    • Building demolitions are complete, slab demolitions are ongoing
  • Below ground tank construction work began on June 24th
    • Initial activities will include geotechnical and environmental borings and is expected to last approximately two months
    • Followed by start of slurry wall installation
  • A temporary salt shed has been constructed on the property
  • Construction of a new, permanent salt shed will begin by end of this week and will continue through October

Minutes of the June 3, 2024 Meeting of the Gowanus Canal CAG Water Quality/Technical Committee

Attendees: Joan Salome-Rodriguez, Eymund Diegel, Richard Lawrence, Joseph Alexiou, Louis Kleinman, Erica Eliason, Aaron Kaufman

The Committee discussed the following:

1. Water Quality will begin to review materials in order to prepare written comments related to the below public notice from DEC:

Public Notice

Advanced Notice of Proposed Rule Making – NYS Triennial Review of Water Quality Standards
Notice is hereby given that the New York State Department of Environmental Conservation (NYS DEC) has published an Advanced Notice of Proposed Rule Making (ANPRM) in the New York State Register on May 8, 2024. The ANPRM solicits public input toward NYSDEC’s Triennial Review of Water Quality Standards (WQS). Clean Water Act (CWA) Section 303(c) and 40 CFR 131.20 include requirements for states to perform a formal regulatory review of WQS every three years, known as the Triennial Review. The Triennial Review is an opportunity for the NYS DEC to integrate the best available science and methods into WQS to protect the waters of the State. Regulations subject to Triennial Review are any that direct the water quality standards, waterbody classification, and antidegradation policies and actions of the State. The effort may result in amendments to water quality standards found in 6 NYCRR Parts 700-706.

The ANPRM document can be viewed at https://dec.ny.gov/environmental-protection/water/water-quality/standards-classifications/ANPRM-triennial-review-of-water-quality-standards. The public may submit input and feedback in response to the ANPRM through November 4, 2024.

The ANPRM is not a regulatory action, but an opportunity to gather stakeholder input to inform future regulatory changes, if appropriate. As such, there are no regulatory impacts and no need for a rule making hearing. 

Public Information Meetings
NYS DEC plans to hold three public information meetings to supplement the ANPRM effort. The information meetings are staggered within the input period to provide better assistance to the public in their effort to assemble useable information for submission.

Read more »

Gowanus Canal Community Advisory Group Comments on the Gowanus Canal Natural Resources Damage Assessment Plan

On May 29, 2024, the Gowanus Canal Community Advisory Group submitted the following comments to the New York State Department of Environmental Conservation on the Gowanus Canal Natural Resources Damage Assessment Plan that was released on March 1, 2024.

You can read our response below, or click here to view and download a PDF of the complete document.

Read more »

May 28, 2024 Update from EPA Region 2 on the Status of Work In and Around the Gowanus Canal

In-Canal Update

  • Supplemental dredging near the flushing tunnel to remove recently deposited debris is ongoing
    • Work began on May 9th
    • Work is anticipated to be completed by the end of July
  • Grouting of the armor mats in this area is being conducted concurrently as areas are dredged
  • Carroll Street bridge – no updates, 65% design for repair work is anticipated to be submitted in early summer
  • RTA 2 Construction
    • EPA reviewing access dredging work plan
    • 100% design for the dredging/capping/ISS work in RTA2 is expected to be submitted to EPA by mid-June

CSO Retention Tank Update

Red Hook Tank

  • Perimeter wall is approximately 80% complete.
    • 91 of 116 panels have been excavated and concreted as of May 24th (see attached figure)
    • Work is anticipated to be completed in July
  • Odor Complaints
    • In response to odor complaints from residents, primarily on Nevins and Sackett Streets, NYCDEP has taken the following steps over the past several months to minimize odors:
      • Continued operation of a perimeter misting system with odor masking scent, including a recent expansion of the system to the area south of the tank site (i.e., Sackett Street between Nevins Street and the canal)
      • Use of odor suppressing foam at the point of soil excavation, over on-site soil piles awaiting disposal, and, more recently, on soil as it is being loaded into trucks for off-site disposal.
      • Relocation of the soil loading area to a more centralized location on-site, away from the Nevins Street/Sackett Street intersection.
    • There is a Community Air Monitoring Plan in place which includes eight monitoring stations around the perimeter of the site.
      • Daily air monitoring data reports are compiled and posted on the NYCDEP website: https://www.nyc.gov/site/dep/water/gowanus-canal.page
      • Exceedances of threshold levels in the CAMP have been infrequent, short duration, and often unrelated to excavation activities, such as fuel refilling operations or idling trucks near one of the monitoring stations.
    • NYCDEP and EPA oversight staff conduct multiple routine perimeter odor checks each day, as well as additional checks in response to any odor complaints.
    • NYCDEP has constructed a tent over certain equipment on-site which is believed to be a primary source of odors.
      • EPA has requested that the next phase of work, full-scale excavation of the RH-034 tank, be conducted completely within a tent structure.

Owl’s Head Tank

  • Demolition of buildings south of 5th Street began on May 21st
    • Expected to be completed by the end of June
  • Below ground tank construction work will begin with mobilization of equipment later this week.
    • Initial activities will include geotechnical and environmental borings beginning on June 10th.

U.S. EPA Inspector General’s Report on the Audit of Gowanus Canal CSO Tanks

The Office of the Inspector General (OIG) of the United States Environmental Protection Agency (EPA) last week issued its report on an audit it conducted of the timing of the construction of the combined sewer overflow (CSO) tanks required by the EPA as part of the Gowanus Canal Superfund remedy. The OIG undertook the audit “in response to an OIG Hotline complaint and congressional interest,” according to the report.

The audit concludes that the construction of the CSO tanks has been delayed by about six-and-a-half years, and cites a number of factors for the delay, including disagreements between New York City and the EPA about tank design and siting, the time required to acquire private land, the city’s pursuit of an alternate retention system, and historic preservation issues. While the audit mostly assigns blame for the delay to the city, it also cites EPA’s failure to more forcefully compel the city to abide by its administrative orders.

The OIG recommends that EPA closely monitor the construction of the tanks, and take decisive action if the city misses any future milestones in the construction process.

You can find links to the OIG’s full audit, an abridged summary, and a podcast version, here: https://www.epaoig.gov/reports/audit/multiple-factors-contributed-delay-constructing-combined-sewer-overflow-tanks-gowanus.

Minutes of the March 14, 2023 Meeting of the Gowanus Canal CAG Administrative Committee

The Admin Committee met via zoom on March 14th to review two new applications for membership in the CAG. The applicants are Daniel Pecoraro and Donald Minerva.

The Admin Committee voted unanimously to send Daniel Pecoraro’s application forward so that he can be interviewed by the full CAG at a general meeting.

The Admin Committee also decided to contact Donald Minerva to give him the opportunity to add more details to his application. The committee members want to make sure that he understands the mission of the CAG.  

Joan Salome-Rodriguez, Jerry Armer, Louis Kleinman, and Katia Kelly attended the meeting and quorum was achieved.

Trustees Release Draft Natural Resource Damage Assessment Plan for Gowanus Canal Superfund Site

Public Comment Period Runs Until April 15, 2024

The Gowanus Canal Natural Resource Damage Assessment Trustee Council, comprised of the National Oceanic and Atmospheric Administration (NOAA), New York State Department of Environmental Conservation (NYSDEC), and the United States Department of the Interior’s U.S. Fish and Wildlife Service (USFWS), have released the draft Natural Resource Damage Assessment Plan (NRDA) for the Gowanus Canal, which “describes the Trustees’ proposed approach to conducting the NRDA, summarizes existing data, and outlines potential analyses and studies that may be used to evaluate contaminants and their effects on Gowanus Canal natural resources and resource services.”

The plan will guide the Trustees in seeking monetary damages from the potentially responsible parties (PRPs, the entities held liable for the contamination of the canal) for the restoration of natural resources and resource services resulting from the contamination of the canal, and compensating the public for interim losses until restoration. The plan describes the Trustees’ “proposed approach to conducting the
NRDA, summarizes existing data, and outlines potential analyses and studies that may be used to evaluate contaminants and their effects on Gowanus Canal.”

You can download a copy of the draft Natural Resource Damage Assessment Plan here, and a copy of the pre-assessment screen, prepared in December 2014, here. A hard copy of the plan is also available for review at the Park Slope branch of the Brooklyn Public Library, at 431 6th Avenue.

You can submit your comments on the plan through April 15, 2024, to:

NYS Department of Environmental Conservation
Natural Resource Damages Section
c/o Alicia Pasos
625 Broadway, 14th Floor
Albany, NY 12233
E-mail: nrd@dec.ny.gov

You can read the letter from the Trustees announcing the publication of the draft NRDA here.

Update on the Status of Gowanus Canal Superfund Cleanup

USEPA Region 2 provided us with the following update on the status of the Gowanus Canal Superfund cleanup on February 27 (edited slightly for elucidation).

In-Canal Work

Remedial Target Area (RTA) 1 (Top of the canal to 3rd Street)

  • The Potentially Responsible Parties (PRPs) are currently laying down the armor mat layer in the canal. They started this stage of the remediation in early November 2023. Mats are inspected for cracks or defects prior to placement and divers measure the spacing between mats. They have currently laid down approximately 132,455 square feet of mats to date (approximately 75% of the total).
  • We expect mat placement to continue until March 2024, followed by subsequent material. Demobilization will occur sometime in May 2024.
  • After mat placement, grout is used to fill in the spaces between the mats. We have held off on placing grout in the top 275 feet of the canal due to a NAPL (non-aqueous phase liquid, a contaminant) issue and within 50 feet of the Carroll Street bridge until the repairs have been completed.
  • Once grout is placed at the head of the canal, the flushing tunnel will be turned back on.
  • The Trust (Gowanus Canal Environmental Remediation Trust established by the PRPs to perform cleanup work) has been conducting air and noise monitoring throughout. They have also been conducting movement and vibration monitoring.
  • We haven’t had any major issues with dissolved oxygen (DO) since the weather cooled off. Still monitoring as significant weather events can also influence the DO.
  • NAPL sheens and blebs have been spotted near the head of the canal
    • From what we see so far visually, it appears that the NAPL seems to be on the surface and that the cap is intact.
    • We don’t yet have results back from the analytical samples that were taken in the vicinity to determine the source of the NAPL.

RTA2 (3rd Street to 9th Street)

  • We are working on the design for the next section of the canal (RTA2) and the 3rd Street Bridge, 4th Street Turning Basin, and 5th Street Turning Basin (3/4/5 Area). RTA2 will be similar in design to RTA1 as it includes dredging, in-situ stabilization, and capping. 
  • We’re currently working with the Trust on the bulkhead designs for RTA2 and coordinating the remediation for all the various parcels and properties.
  • We do not have any updates on the status of the design for the Carroll Street Bridge repair. Design still being worked on.

Combined Sewer Overflow (CSO) Tanks

  • Installation of the perimeter slurry wall at the Red Hook CSO retention tank site on Nevins Street is ongoing. The work is approximately 40% complete and on schedule to be finished by late June/July 2024. In response to odor complaints, the City is constructing a tent over equipment that removes soil and debris from the slurry used in the perimeter wall and can create odors. The tent structure and fabric are in place, though some additional work is needed on the HVAC system in order for the tent to be fully functional. 
  • Asbestos abatement along with debris removal and disposal has begun at structures slated for demolition at the Owl’s Head tank site. Building demolitions are scheduled to begin later this spring.

Upland Sites

  • No new updates

USEPA Region 2 Response to Gowanus Canal CAG’s October 2023 Resolution Concerning Access to Parcel 4 of the former Citizens MGP Site

On January 23, 2024, Pat Evangelista, Director of EPA Region 2’s Superfund and Emergency Management Division, sent the letter posted below in response to a resolution passed by the Gowanus Canal Community Advisory Group at its October 24, 2023 general meeting, which asked the EPA to assume responsibility for remediating the entirety of the former Citizens Manufactured Gas Plant site under the auspices of the Gowanus Superfund cleanup, due to the ongoing inability of National Grid and the New York State Department of Environmental Conservation to gain access to the site’s Parcel 4.