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ENB Region 9 Completed Applications 07/08/2015

Erie County


Huntley Power LLC
211 Carnegie Center
Princeton, NJ 08540


Huntley Steam Generating Station
3500 River Road
Tonawanda, NY 14150

Application ID:


Permit(s) Applied for:

Article 17 Titles 7 & 8 Industrial SPDES - Surface Discharge

Project is Located:

Tonawanda, Erie County

Project Description:

The Department previously issued a Notice of Complete Application for the renewal and modification of the SPDES permit for the Huntley Station on December 4, 2013 and September 24, 2014. The primary change to the current notice is the change and identification of new BTA requirements included in the draft SPDES permit:

  1. Continue to operate the modified Ristroph type traveling screens and fish return system;
  2. Installation of fine mesh screen panels of no greater than 0.86 mm;
  3. Utilization of one pump operation on all circulating water pumps during appropriate periods (night time hours, reduced station operating loads); and
  4. Recirculation of part of the station's thermal discharge.

    Other modifications to the SPDES permit that were previously noticed include:
  1. Updated Page 2 language for monitoring definitions;
  2. Removed Item #8 under the Schedule of Compliance (now on Page 16 of 25 of the permit). The permittee has met the requirement for the thermal study;
  3. Requirement to develop a Mercury Minimization Program is included on Page 19 of this permit;
  4. General Requirements and revised reporting and monitoring requirements pages are included.

The Department is proposing to renew and modify the SPDES permit for the Huntley Generating Station under the Environmental Benefit Permit Strategy. The permit is being modified pursuant to 6 NYCRR Part 704.5 and 40 CFR 125 - Subpart J. These regulations require that the location, design, construction, and capacity of cooling water intake structures reflect the best technology available (BTA) for minimizing adverse environmental impact. The Huntley Station is a coal fired facility that began operation 1916. The only units remaining in operation, units 67 and 68, have an electrical generating capacity of 400 MW. A maximum of 375 million gallons of condenser cooling water per day is withdrawn from the Niagara River through a shoreline intake. In 1999, the traveling intake screens for these units were replaced with modified Ristroph traveling screens designed to minimize impingement mortality to fish. A low stress fish return system was also installed to return impinged fish to the Niagara River. These existing intake technologies have reduced impingement mortality by at least 90 percent. In addition, the SPDES permit requires the seasonal installation of fine mesh (≤0.86 mm) panels on the traveling screens and the reduction of night time cooling water use to minimize entrainment. This combination of technology and operational measures will reduce entrainment by at least 80 percent. Other modifications to the permit are administrative in nature. A copy of the draft SPDES permit, a detailed industrial fact sheet, and a biological fact sheet are available for review and comment. A request for these documents can be sent to the contact person listed below. The station is located along the upper Niagara River, approximately 1.5 miles downstream of the head of Grand Island.

Availability of Application Documents:

Filed application documents, and Department draft permits where applicable, are available for inspection during normal business hours at the address of the contact person. To ensure timely service at the time of inspection, it is recommended that an appointment be made with the contact person.

State Environmental Quality Review (SEQR) Determination:

Project is a Type I action and will not have a significant effect on the environment. A coordinated review with other agencies was performed and a Negative Declaration is on file.

SEQR Lead Agency: NYS Department of Environmental Conservation

State Historic Preservation Act (SHPA) Determination:

The proposed activity is not subject to review in accordance with SHPA. The application type is exempt and/or the project involves the continuation of an existing operational activity.

Coastal Management:

This project is located in a Coastal Management area and is subject to the Waterfront Revitalization and Coastal Resources Act.

Opportunity for Public Comment:

Comments on this project must be submitted in writing to the Contact Person no later than Aug 07, 2015.


Christopher M Hogan
NYSDEC Headquarters
625 Broadway
Albany, NY 12233

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