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ENB Region 7 Completed Applications 05/01/2013

Onondaga County

Applicant:

Onondaga County
1100 Civic Ctr
421 Montgomery St
Syracuse, NY 13202

Facility:

Metropolitan Syracuse WWTP
650 Hiawatha Blvd W
Syracuse, NY 13204 -1194

Application ID:

7-3115-00113/00001

Permit(s) Applied for:

Article 17 Titles 7 & 8 Municipal SPDES - Surface Discharge

Project is Located:

Syracuse, Onondaga County

Project Description:

The County has proposed constructing a treatment wetland at CSO 018 as an attempt to capture combined sewer overflows up to the one-year, two-hour design storm for primary treatment and discharge to Harbor Brook. This will initially be operated as a pilot treatment system. Flows that remain within the capacity of the Harbor Brook trunk sewer (HBIS) will be conveyed for ultimate treatment at Metro. Flow in excess of the grit chamber at the proposed constructed wetlands will be discharged, untreated, to Harbor Brook. Monitoring conditions for this system and other, minor administrative changes are included to clarify reporting procedures. Also included in this proposed modification is the following: On June 29, 2012, the USEPA approved the revised TMDL developed by NYSDEC. It addresses excess phosphorus loading to Onondaga Lake with the goal of improving water quality to meet current designated best uses. This task was accomplished by utilizing the extensive effluent and ambient monitoring data available along with enhanced water quality models. Based on the conclusions of the TMDL analysis, the NYSDEC has set a maximum phosphorus effluent waste load allocation (WLA) for all outfalls discharging from the Metropolitan Syracuse Wastewater Treatment Plant under the configuration of a 'bubble' permit. The bubble permit limit is the sum of the outfall 001 WLA of 21,511 lb P/year, plus the WLA of 5,701 lb P/year from (this includes discharges from outfall 001A) outfall 002, for a total facility limit of 27,212 lb P/year.

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 not subject to SEQR because it is a Type II action.

SEQR Lead Agency: None Designated

State Historic Preservation Act (SHPA) Determination:

A cultural resources survey has been completed. Based on information provided in the survey report, the New York State Office of Parks, Recreation and Historic Preservation (OPRHP) has determined that the proposed activity will have no impact on registered or eligible archaeological sites or historic structures. No further review in accordance with SHPA is required.

Coastal Management:

This project is not located in a Coastal Management area and is not 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 May 31, 2013.

Contact:

Elizabeth A Tracy
NYSDEC Region 7 Headquarters
615 Erie Boulevard West
Syracuse, NY 13204
(315)426-7438
dep.r7@dec.ny.gov


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