ENB Region 3 Completed Applications 09/08/2004

The applicant proposes to construct a house, driveway and yard areas within the 100 foot Adjacent Area of Freshwater Wetland NB-32 (Class I) on a 5.35 acre lot.  The project site is located on the south side of East Rock Cut Road, approximately 1,200 feet east of the intersection with Rock Cut Road.  The house will be located approximately 130 feet from East Rock Cut Road.

The applicant proposes to reconstruct an existing little league baseball facility within the 100-foot adjacent area of State-designated Freshwater Wetland W-7 (Class I).  The project site is located at Pat Henry Field near the southeastern end of South Kensico Avenue.  The project involves raising the field, driveway, and parking areas; reconfiguration and expansion of parking areas; and installation of drainage and landscaping improvements.  In addition, a new storm drain outfall will be installed on the bank of the Bronx River, a class C(T) stream.  

    The NYS Department of Environmental Conservation proposes to modify the State Pollutant Discharge Elimination System (SPDES) Permit for the existing discharge from the North Castle Seweage Treatment Plant (STP) serving Sewer District #2 to the Long Island Sound via the Wampus River .  The SPDES permit for this facility in Westchester County has been modified in accordance with the revised Total Maximum Daily Load (TMDL) criteria for nitrogen for this waterbody.  Permit limits, levels, and monitoring requirements have been amended as follows:

Long Island Sound Nitrogen Limits - The Long Island Sound Total Maximum Daily Load (TMDL) analysis has been completed for nitrogen and accepted by USEPA. Therefore, the requirements of the Long Island Sound Study, which require point sources to reduce the discharge of nitrogen over a period of 15 years, are included in the draft permit as phased limits for this permittee discharging to Long Island Sound. These limits are consistent with the 5, 10, and 15 year waste load allocations (WLAs) that are specified in the Zone 7 Nitrogen Load Management Plan.  A compliance schedule, requiring the permittee to develop a plan to meet the total nitrogen limits is included in the permit.

Mass Limits - Mass limits for CBOD₅ and TSS were rounded to 2 significant figures in compliance with DEC guidance in the DMR Manual for Completing the Discharge Monitoring Report for the SPDES, NYSDEC, February, 2002.

Total Residual Chlorine (TRC) - The current permit has a technology based daily maximum limit of 2.0 mg/l for TRC. A new, lower water quality based effluent limit has been calculated  for TRC that considers dilution, decay, and immediate free available chlorine demand/uptake at the STP.

pH - The current permit has a technology based pH range of 6.0 - 9.0.  The water quality based pH range is 6.5 - 8.5.  This range is protective of water quality in the Wampus river which is an intermittent stream.

Metals - Cyanide and zinc were detected in the STP effluent and listed in the permit application.  The new permit requires furtheranalysis for these parameters.  The Sampling requirements, method of analysis, and compliance conditions are included in the schedule of compliance section of the permit.  A re-opener clause is also included in the permit, so that DEC can include limits in the future if necessary.

    Additional information on this permit may be requested from or inspected at the NYSDEC Central Office in Albany.  Substantive comments must be submitted in writing to the contact person.

    SPDES Number:  NY 010 9584