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ENB Region 7 Completed Applications 04/28/2021

Onondaga County

Applicant:

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

Facility:

Meadowbrook Limestone WWTP
7530 Manlius Center Rd
Kirkville, NY 13082

Application ID:

7-3138-00022/00001

Permit(s) Applied for:

Article 17 Titles 7 & 8 Municipal SPDES - Surface Discharge

Project is Located:

Manlius, Onondaga County

Project Description:

The New York State Department of Environmental Conservation (DEC) is pursuing a Department Initiated Modification (DIM) to the State Pollutant Discharge Elimination System (SPDES) Permit (NY0027723), pursuant to 6 NYCRR Part 750-1.18, and 750-1.19, the Priority Ranking System known as New York State's Environmental Benefit Permit Strategy (EBPS). This modification will also serve to renew the SPDES permit, the term of which was extended under the State Administrative Procedures Act (SAPA).

The Meadowbrook-Limestone Wastewater Treatment Plant has a design flow of 6.5 MGD with a peak flow capacity of 16 MGD. This facility includes preliminary treatment, screening, grit removal; secondary treatment, extended aeration activated sludge; secondary clarification, aerobic sludge digestion, rotary drum thickening, ultraviolet disinfection, and phosphorus removal (Alum).

The following changes to the permit are proposed: updated cover page, definitions page, discharge notification act requirements, and general requirements pages, corrected coordinates for Outfall 001, removal of stormwater pollution prevention plan (SWPPP) requirements and inclusion of the stormwater no exposure certification, updated monitoring locations to reflect both Outfall 001 and new internal Outfall 01A, removed schedule of compliance for completed disinfection milestones, revised mercury minimization program requirements from high priority to MMP Type I. Changes to outfall 001 include: new flow reporting location for the effluent, new 7-day average effluent limitation, for UOD of 39 mg/L (equivalent to the existing load limit of 2093 lb/d at the design flow), increase to the daily maximum effluent limitation for settleable solids from 0.1 to 0.3 ml/L, change to the sample type for TKN from 30-day average to 7-day average to match UOD, change to the reporting requirements for ammonia from NH3 to NH3 as N, change to the 30-day average loading limitation for summer ammonia from 76 lbs/d as NH3 to the equivalent 63 lb/d as N and new concentration monitoring requirement, new monitor only requirement for winter ammonia concentration and loading, new 12-month rolling average effluent limitation for mercury of 10 ng/L, change to the monitoring action level for Bis(2-ethylhexyl)Phthalate to monitor only, new requirement for a biennial pollutant scan to be submitted with next NY-2A application, discontinue the effluent limitation for cyanide, iron, and total residual chlorine, change to the disinfection season from 5/15 - 10/15 to 5/1 - 10/31, discontinue the action levels for zinc and chloroform, new footnote describing the mass balance calculation for reporting of influent data, removal of influent sampling requirement for CBOD5/TSS 7-day average, UOD, settleable solids, DO, ammonia and TKN. A new internal outfall, 01A, which returns filtrate from the rotary drum thickener, will be added to the permit including monthly monitoring requirements.

As a result of the EBPS full technical review, a new five-year term is proposed. The permit includes updated forms and the latest general conditions. Details of changes are specified in the draft permit and fact sheet which may be viewed and printed from the Department web site at: http://www.dec.ny.gov/permits/6054.html.

Requests for a legislative (public statement) hearing must be sent in writing to the DEC contact person below by the comment deadline. The Department assesses such requests pursuant to 6 NYCRR Section 621.8.

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 an Unlisted Action and will not have a significant impact on the environment. A Negative Declaration is on file. A coordinated review was not performed.

SEQR Lead Agency: None Designated

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 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 28, 2021.

Contact:

Kevin M Balduzzi
NYSDEC Region 7 Headquarters
615 Erie Boulevard W
Syracuse, NY 13204
(315)426-7438
DEP.R7@dec.ny.gov


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