The preferred remedy being proposed by the EPA, for the upper and mid-reaches of the canal, consists of dredging all the hazardous "soft sediments" that have accumulated above the canal's native sediments, installing a multi-layered cap atop the native sediment, and stabilizing the native sediments in place in the areas of greatest contamination. For the lower reach of the canal, the preferred remedy consists of the first two steps, minus the in-situ stabilization. There are varied plans for the disposal of dredged materials. In addition, the EPA is recommending the dredging of the filled-in 1st Street Turning Basin. The EPA estimates the total cost of the preferred remedy at somewhere between $467 million and $504 million.
Furthermore, the EPA is recommending steps to prevent the recontamination of the canal through Combined Sewer Overflows (CSOs), as well as through the migration of harmful substances from contaminated upland sites. The preferred remedy also presumes that the New York City Department of Environmental Protection will install retention basins with capacities of several million gallons at the canal's two largest sewer outfalls to help significantly reduce CSO events.
The 43-page Proposed Remedial Action Plan is available online as a PDF, at http://www.epa.gov/region2/
superfund/npl/gowanus/pdf/ gowanus_prap.pdf. The EPA will accept public comments until March 28th. Written comments can be submitted via email to GowanusCanalComments. Region2@epa.gov, by fax to (212) 637-3966, or by mail to:
Remedial Project Manager
Central New York Remediation Section
U.S. Environmental Protection Agency
290 Broadway, 20th Floor
New York, NY 10007-1866
The EPA is also holding two public meetings this week, on January 23rd and 24th, to present the conclusions of the Gowanus Canal Remedial Investigation and Feasibility Study, provide further elaboration on the reasons behind its recommendation, and to accept public comments. Details of those meetings are as follows:
January 23rd, 2013
6:30 p.m. – 9:00 p.m.
PS 58, the Carroll School
330 Smith Street
January 24th, 2013
7:00 p.m. – 9:00 p.m.
Joseph Miccio Community Center
110 West 9th Street
All comments made orally or submitted at the public meetings, and all comments submitted in writing by mail or electronic means, will be documented in the Responsiveness Summary Section of the Record of Decision, the EPA document that formalizes the selection of the final remedy.
The Superfund cleanup of the Gowanus Canal will have a profound impact on the neighborhoods that surround it. We encourage you to review the PRAP, attend one of the meetings, and, if you're so inclined, to weigh in with comments.