ENB Region 3 Completed Applications 09/15/2004

• Updated permit pages are used, based on current Department guidance, format and nomenclature.
• Permit pages are renumbered and reordered.
• The address for the Bureau of Water Compliance on the Recording, Reporting and Monitoring page has been changed.
• The Interstate Sanitation Commission has changed its name to the Interstate Environmental Commission and is referenced thus in the permit.
• A continuation of the Discharge Notification Act requirements was added.  

• Biological Oxygen Demand - The BOD₅ limits have been replaced with Carbonaceous BOD (CBOD₅) limits to better represent the nitrifying effluent at the treatment plant. These limits are 5 mg/L lower than BOD₅  limits.

• 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.

• Long Island Sound Nitrogen Limits - The Long Island Sound Total Maximum Daily Limits (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 permits as phased limits for permittees 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. The baseline load for establishing the permit limits is 4585 lbs/day, which is consistent with the EPA-approved TMDL and the Final LIS Study Baseline Loading Report, CTDEP & NYSDEC, January 31, 1992.

• Total Residual Chlorine (TRC) - The current permits have 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 each STP. Since three of the four STPs cannot meet the new water quality limit without additional treatment or TRC controls, an interim limit of 2.0 mg/l is in effect until Westchester County DEF constructs facilities necessary to achieve the water quality limit. (The new water quality based effluent limit for Mamaroneck STP is 2.0 mg/l, requiring no change in the permit limit.)

• Updated permit pages are used, based on current Department guidance, format and nomenclature.
• Permit pages are renumbered and reordered.
• The address for the Bureau of Water Compliance on the Recording, Reporting and Monitoring page has been changed.
• The Interstate Sanitation Commission has changed its name to the Interstate Environmental Commission and is referenced thus in the permit.
• A continuation of the Discharge Notification Act requirements was added.  

• Biological Oxygen Demand - The BOD₅ limits have been replaced with Carbonaceous BOD (CBOD₅) limits to better represent the nitrifying effluent at the treatment plant. These limits are 5 mg/L lower than BOD₅  limits.

• 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.

• Long Island Sound Nitrogen Limits - The Long Island Sound Total Maximum Daily Limits (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 permits as phased limits for permittees 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. The baseline load for establishing the permit limits is 4585 lbs/day, which is consistent with the EPA-approved TMDL and the Final LIS Study Baseline Loading Report, CTDEP & NYSDEC, January 31, 1992.

• Total Residual Chlorine (TRC) - The current permits have 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 each STP. Since three of the four STPs cannot meet the new water quality limit without additional treatment or TRC controls, an interim limit of 2.0 mg/l is in effect until Westchester County DEF constructs facilities necessary to achieve the water quality limit. (The new water quality based effluent limit for Mamaroneck STP is 2.0 mg/l, requiring no change in the permit limit.)

• Updated permit pages are used, based on current Department guidance, format and nomenclature.
• Permit pages are renumbered and reordered.
• The address for the Bureau of Water Compliance on the Recording, Reporting and Monitoring page has been changed.
• The Interstate Sanitation Commission has changed its name to the Interstate Environmental Commission and is referenced thus in the permit.
• A continuation of the Discharge Notification Act requirements was added.  

• Biological Oxygen Demand - The BOD₅ limits have been replaced with Carbonaceous BOD (CBOD₅) limits to better represent the nitrifying effluent at the treatment plant. These limits are 5 mg/L lower than BOD₅  limits.

• 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.

• Long Island Sound Nitrogen Limits - The Long Island Sound Total Maximum Daily Limits (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 permits as phased limits for permittees 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. The baseline load for establishing the permit limits is 4585 lbs/day, which is consistent with the EPA-approved TMDL and the Final LIS Study Baseline Loading Report, CTDEP & NYSDEC, January 31, 1992.

• Total Residual Chlorine (TRC) - The current permits have 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 each STP. Since three of the four STPs cannot meet the new water quality limit without additional treatment or TRC controls, an interim limit of 2.0 mg/l is in effect until Westchester County DEF constructs facilities necessary to achieve the water quality limit. (The new water quality based effluent limit for Mamaroneck STP is 2.0 mg/l, requiring no change in the permit limit.)

• Updated permit pages are used, based on current Department guidance, format and nomenclature.
• Permit pages are renumbered and reordered.
• The address for the Bureau of Water Compliance on the Recording, Reporting and Monitoring page has been changed.
• The Interstate Sanitation Commission has changed its name to the Interstate Environmental Commission and is referenced thus in the permit.
• A continuation of the Discharge Notification Act requirements was added.  

• Biological Oxygen Demand - The BOD₅ limits have been replaced with Carbonaceous BOD (CBOD₅) limits to better represent the nitrifying effluent at the treatment plant. These limits are 5 mg/L lower than BOD₅  limits.

• 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.

• Long Island Sound Nitrogen Limits - The Long Island Sound Total Maximum Daily Limits (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 permits as phased limits for permittees 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. The baseline load for establishing the permit limits is 4585 lbs/day, which is consistent with the EPA-approved TMDL and the Final LIS Study Baseline Loading Report, CTDEP & NYSDEC, January 31, 1992.

• Total Residual Chlorine (TRC) - The current permits have 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 each STP. Since three of the four STPs cannot meet the new water quality limit without additional treatment or TRC controls, an interim limit of 2.0 mg/l is in effect until Westchester County DEF constructs facilities necessary to achieve the water quality limit. (The new water quality based effluent limit for Mamaroneck STP is 2.0 mg/l, requiring no change in the permit limit.)