LG-20-094, Reporting NPDES Permit PA0051926 Renewal for Limerick Generating Station

Reporting NPDES Permit PA0051926 Renewal for Limerick Generating Station

ML20288A190
Person / Time
Site:	Limerick
Issue date:	10/14/2020
From:	Sturniolo F Exelon Generation Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
LG-20-094, PA0051926
Download: ML20288A190 (66)

Text

LG-20-094 October 14, 2020 Mr. David Lew, Regional Administrator U. S. Nuclear Regulatory Commission, Region I 2100 Renaissance Blvd., Suite 100 King of Prussia, PA 19406-2713 TS Appendix B Section 3.2 Limerick Generating Station, Units 1 and 2 Renewed Facility Operating License Nos. NPF-39 and NPF-85 NRC Docket Nos. 50-352 and 50-353

Subject:

Reporting NPDES Permit PA0051926 Renewal for Limerick Generating Station This letter is to inform the NRC that Exelon Generation Company, LLC (Exelon) has received a renewed National Pollutant Discharge Elimination System (NPDES) Permit PA0051926 for the Limerick Generating Station (LGS). This notification is required per the LGS Technical Specifications Appendix B Section 3.2. Attached is a copy of the renewed permit.

There are no regulatory commitments contained in this letter.

If you have any questions or require additional information, please contact Laura Lynch at 610-718-4300.

Respectfully, Frank Sturniolo Digitally signed by Frank Sturniolo Date: 2020.10.12 11:09:17

-04'00' Site Vice President - Limerick Generating Station Exelon Generation Co., LLC

Attachment:

NPDES Permit No. PA0051926 for Limerick Generating Station cc:

USNRC Senior Resident Inspector, LGS Document Control Desk, USNRC, Washington, DC

3800-PM-BCW0011 Rev. 2/2020 COMMONWEALTH OF PENNSYLVANIA Permit DEPARTMENT OF ENVIRONMENTAL PROTECTION BUREAU OF CLEAN WATER AUTHORIZATION TO DISCHARGE UNDER THE NATIONAL POLLUTANT DISCHARGEELIMINATION SYSTEM DISCHARGEREQUIREMENTS FOR INDUSTRIAL WASTEWATER FACILITIES NPDES PERMIT NO: PA0051926 In compliance with the provisions of the Clean Water Act, 33 U.S.C. Section 1251 et seq. ("the Act") and Pennsylvania's Clean Streams Law, as amended, 35 P.S. Section 691.1 et seq.,

Exelon Generation Co. LLC 3146 Sanatoga Road Pottstown, PA 19464-3418 is authorized to discharge from a facility known as Limerick Generating Station, located at 3146 Sanatoga Road, Limerick Township, Montgomery County, to Possum Hollow Run (WWF, MF), Schuylkill River (WWF, MF),

Possum Hollow Run (WWF), and Sanatoga Creek (WWF, MF) in Watershed(s) 3-D in accordance with effluent limitations, monitoring requirements and other conditions set forth in Parts A, B and C hereof.

THIS PERMIT SHALL BECOME EFFECTIVE ON NOVEMBER 1, 2020 THIS PERMIT SHALL EXPIRE AT MIDNIGHT ON OCTOBER 31, 2025 The authority granted by this permit is subject to the following further qualifications:

1.

If there is a conflict between the application, its supporting documents and/or amendments and the terms and conditions of this permit, the terms and conditions shall apply.

2.

Failure to comply with the terms, conditions or effluent limitations of this permit is grounds for enforcement action; for permit termination, revocation and reissuance, or modification; or for denial of a permit renewal application. (40 CFR 122.41(a))

3.

A complete application for renewal of this permit, or notice of intent to cease discharging by the expiration date, must be submitted to DEP at least 180 days prior to the above expiration date (unless permission has been granted by DEP for submission at a later date), using the appropriate NPDES permit application form. (40 CFR 122.41(b),

122.21(d)(2))

In the event that a timely and complete application for renewal has been submitted and DEP is unable, through no fault of the permittee, to reissue the permit before the above expiration date, the terms and conditions of this permit, including submission of the Discharge Monitoring Reports (DMRs), will be automatically continued and will remain fully effective and enforceable against the discharger until DEP takes final action on the pending permit application.

(25 Pa. Code §§ 92a.7 (b), (c))

4.

This NPDES permit does not constitute authorization to construct or make modifications to wastewater treatment facilities necessary to meet the terms and conditions of this permit.

DATE PERMIT ISSUED October 5, 2020 ISSUED BY Thomas L. Magge Environmental Program Manager Southeast Regional Office 1

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 2

Outfall 001, Continued (from Permit Effective Date through Permit Expiration Date )

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I. A.

For Outfall 001

, Latitude 40º 13' 13.00"

, Longitude 75º 35' 22.00"

, River Mile Index 48.01

, Stream Code 00833 Receiving Waters:

Schuylkill River (WWF, MF)

Type of Effluent:

Cooling tower blow down, treated radioactive waste, laundry drains, holding pond effluent, spray pond effluent, closed cooling water and manhole dewatering water.

1.

The permittee is authorized to discharge during the period f rom Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting document s and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Parameter Effluent Limitations Monitoring Requirements Mass Units (lbs/day) (1)

Concentrations (mg/L)

Minimum (2)

Measurement Frequency Required Sample Type Average Monthly Average Weekly Minimum Average Monthly Daily Maximum Instant.

Maximum Flow (MGD)

Report Report Daily Max XXX XXX XXX XXX Continuous Measured pH (S.U.)

XXX XXX 6.0 Inst Min XXX XXX 9.0 1/day See Permita Total Residual Oxidantsb XXX XXX XXX XXX 0.2 0.5 1/week Grab Temperature (ºF)c XXX XXX Report Avg Mo Report Daily Max XXX 110 Continuous I-S Total Suspended Solids XXX XXX XXX Report Report XXX See Permitd 24-Hr Composite Total Suspended Solids Intake XXX XXX XXX Report Report XXX See Permitd 24-Hr Composite Total Suspended Solids Effluent Net XXX XXX XXX 30 60 75 See Permitd Calculation Total Dissolved Solids XXX XXX XXX Report Report XXX 1/month 24-Hr Composite Fecal Coliform (No./100 ml)

XXX XXX XXX Report Avg Qrtly Report XXX 1/quarter Grab Aluminum, Total XXX XXX XXX 4.97 7.75 12.43 2/month 24-Hr Composite Chromium, Total XXX XXX XXX 0.2 0.2 XXX 2/month 24-Hr Composite

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 3

Outfall 001, Continued (from Permit Effective Date through Permit Expiration Date )

Parameter Effluent Limitations Monitoring Requirements Mass Units (lbs/day) (1)

Concentrations (mg/L)

Minimum (2)

Measurement Frequency Required Sample Type Average Monthly Average Weekly Minimum Average Monthly Daily Maximum Instant.

Maximum Copper, Total XXX XXX XXX Report Report XXX 2/month 24-Hr Composite Iron, Total XXX XXX XXX Report Report XXX 2/month 24-Hr Composite Lead, Total XXX XXX XXX Report Report XXX 2/month 24-Hr Composite Sulf ate, Total XXX XXX XXX Report Avg Qrtly Report XXX 1/quarter 24-Hr Composite Zinc, Total XXX XXX XXX 1.0 1.0 XXX 2/month 24-Hr Composite Acrylamide XXX XXX XXX Report Avg Qrtly Report XXX 1/quarter 24-Hr Composite Chloride XXX XXX XXX Report Avg Qrtly Report XXX 1/quarter 24-Hr Composite Bromide XXX XXX XXX Report Avg Qrtly Report XXX 1/quarter 24-Hr Composite PCBs Dry Weather Analysis (ng/L)

XXX XXX XXX XXX Report XXX 1/year 24-Hr Composite PCBs Wet Weather Analysis (ng/L)

XXX XXX XXX XXX Report XXX 1/year 24-Hr Composite Toxicity, Chronic -

Ceriodaphnia Survival (TUc)

XXX XXX XXX Report Daily Max XXX XXX 1/quarter 24-Hr Composite Toxicity, Chronic -

Ceriodaphnia Reproduction (TUc)

XXX XXX XXX Report Daily Max XXX XXX 1/quarter 24-Hr Composite Toxicity, Chronic - Pimephales Survival (TUc)

XXX XXX XXX Report Daily Max XXX XXX 1/quarter 24-Hr Composite Toxicity, Chronic - Pimephales Growth (TUc)

XXX XXX XXX Report Daily Max XXX XXX 1/quarter 24-Hr Composite Samples taken in compliance with the monitoring requirements specified above shall be taken at the following location(s):

at Outfall 001

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 4

a See Part C.I. Other Requirement No. Q for pH monitoring and compliance requirements.

b See Part C.I. Other Requirement Nos. J, K and L c See Part C.I. Other Requirement No. E d See Part C. I. Other Requirement Nos R, S and T

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 5

Outfall 002, Continued (from Permit Effective Date through Permit Expiration Date )

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I. B.

For Outfall 002

, Latitude 40º 13' 20.00"

, Longitude 75º 35' 14.00"

, River Mile Index 0.23

, Stream Code 01640 Receiving Waters:

Possum Hollow Run (WWF)

Type of Effluent:

Stormwater f rom area around former sewage treatment plant and service area.

1.

The permittee is authorized to discharge during the period f rom Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Parameter Effluent Limitations Monitoring Requirements Mass Units (lbs/day) (1)

Concentrations (mg/L)

Minimum (2)

Measurement Frequency Required Sample Type Average Monthly Average Weekly Minimum Average Monthly Daily Maximum Instant.

Maximum pH (S.U.)

XXX XXX XXX XXX Report XXX 1/6 months Grab Total Suspended Solids XXX XXX XXX XXX Report XXX 1/6 months Grab Oil and Grease XXX XXX XXX XXX Report XXX 1/6 months Grab Copper, Total XXX XXX XXX XXX Report XXX 1/6 months Grab Iron, Total XXX XXX XXX XXX Report XXX 1/6 months Grab Zinc, Total XXX XXX XXX XXX Report XXX 1/6 months Grab Samples taken in compliance with the monitoring requirements specified above shall be taken at the following location(s):

at Outfall 002. See Part C. IV, Requirements Applicable to Stormwater Outfalls.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 6

Outfall 003, Continued (from Permit Effective Date through Permit Expiration Date )

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I. C.

For Outfall 003

, Latitude 40º 13' 20.80"

, Longitude 75º 35' 12.80"

, River Mile Index 0.265

, Stream Code 01640 Receiving Waters:

Possum Hollow Run (WWF, MF)

Type of Effluent:

Unit 1 condenser waterbox drains, wastewater f rom floor drains, chiller wastewater, cooling Water and stormwater

1.

The permittee is authorized to discharge during the period f rom Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Parameter Effluent Limitations Monitoring Requirements Mass Units (lbs/day) (1)

Concentrations (mg/L)

Minimum (2)

Measurement Frequency Required Sample Type Average Monthly Average Weekly Minimum Average Monthly Daily Maximum Instant.

Maximum Flow (MGD)

Report Report Daily Max XXX XXX XXX XXX 1/discharge Calculation pH (S.U.)

XXX XXX 6.0 Inst Min XXX XXX 9.0 1/discharge Grab Total Residual Oxidants XXX XXX XXX XXX 0.2 0.5 1/discharge Grab Temperature (ºF)

XXX XXX XXX XXX XXX 110 1/discharge I-S Total Suspended Solids XXX XXX XXX Report Report XXX 1/discharge Grab Samples taken in compliance with the monitoring requirements specified above shall be taken at the following location(s): Discharge through drain valve f rom cooling water system. Collect one sample per batch discharge event f rom the cooling water system.

See Part C. IV, Requirements Applicable to Stormwater Outfalls.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 7

Samples taken in compliance with the monitoring requirements specif ied above shall be taken at the following location(s):

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I. D.

For Outfall 004

, Latitude 40º 13' 21.00"

, Longitude 75º 35' 9.00"

, River Mile Index 0.28

, Stream Code 01640 Receiving Waters:

Possum Hollow Run (WWF)

Type of Effluent:

Stormwater f rom fuel storage area

1.

The permittee is authorized to discharge during the period f rom Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Outfall 004 is not monitored. See Part C. IV, Requirements Applicable to Stormwater Outfalls.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 8

Outfall 005, Continued (from Permit Effective Date through Permit Expiration Date )

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I. E.

For Outfall 005

, Latitude 40º 13' 23.00"

, Longitude 75º 35' 6.00"

, River Mile Index 0.36

, Stream Code 01640 Receiving Waters:

Possum Hollow Run (WWF)

Type of Effluent:

Unit 2 condenser waterbox drains, wastewater f rom floor drains, chiller wastewater, cooling Water and stormwater

1.

The permittee is authorized to discharge during the period f rom Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Parameter Effluent Limitations Monitoring Requirements Mass Units (lbs/day) (1)

Concentrations (mg/L)

Minimum (2)

Measurement Frequency Required Sample Type Average Monthly Average Weekly Minimum Average Monthly Daily Maximum Instant.

Maximum Flow (MGD)

Report Report Daily Max XXX XXX XXX XXX 1/discharge Calculation pH (S.U.)

XXX XXX 6.0 Inst Min XXX XXX 9.0 1/discharge Grab Total Residual Oxidants XXX XXX XXX XXX 0.2 0.5 1/discharge Grab Temperature (ºF)

XXX XXX XXX XXX XXX 110 1/discharge I-S Total Suspended Solids XXX XXX XXX Report Report XXX 1/discharge Grab Samples taken in compliance with the monitoring requirements specified above shall be taken at the following location(s): Discharge through drain valve f rom cooling water system. Collect one sample per batch discharge event f rom the cooling water system.

See Part C. IV, Requirements Applicable to Stormwater Outfalls.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 9

Samples taken in compliance with the monitoring requirements specified ab ove shall be taken at the following location(s):

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I. F.

For Outfall 006

, Latitude 40º 13' 24.20"

, Longitude 75º 35' 21.20"

, River Mile Index 48.15

, Stream Code 00833 Receiving Waters:

Schuylkill River (WWF, MF)

Type of Effluent:

Stormwater from maintenance area of metal shop and hardware.

1.

The permittee is authorized to discharge during the period from Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Outfall 006 is not monitored. See Part C. IV, Requirements Applicable to Stormwater Outfalls.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 10 Samples taken in compliance with the monitoring requirements specif ied above shall be taken at the following location(s):

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I. G. For Outfall 007

, Latitude 40º 13' 25.00"

, Longitude 75º 35' 22.00"

, River Mile Index 48.28

, Stream Code 00833 Receiving Waters:

Schuylkill River (WWF, MF)

Type of Effluent:

Stormwater from maintenance area around health physics building, hardware and off ices.

1.

The permittee is authorized to discharge during the period from Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Outfall 007 is not monitored. See Part C. IV, Requirements Applicable to Stormwater Outfalls.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 11 Outfall 008, Continued (from Permit Effective Date through Permit Expiration Date )

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I. H.

For Outfall 008

, Latitude 40º 13' 27.00"

, Longitude 75º 35' 25.00"

, River Mile Index 48.32

, Stream Code 00833 Receiving Waters:

Schuylkill River (WWF, MF)

Type of Effluent:

Stormwater from area around health physics building and electric substation.

1.

The permittee is authorized to discharge during the period from Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Parameter Effluent Limitations Monitoring Requirements Mass Units (lbs/day) (1)

Concentrations (mg/L)

Minimum (2)

Measurement Frequency Required Sample Type Average Monthly Average Weekly Minimum Average Monthly Daily Maximum Instant.

Maximum pH (S.U.)

XXX XXX XXX XXX Report XXX 1/6 months Grab Total Suspended Solids XXX XXX XXX XXX Report XXX 1/6 months Grab Oil and Grease XXX XXX XXX XXX Report XXX 1/6 months Grab Copper, Total XXX XXX XXX XXX Report XXX 1/6 months Grab Iron, Total XXX XXX XXX XXX Report XXX 1/6 months Grab Zinc, Total XXX XXX XXX XXX Report XXX 1/6 months Grab Samples taken in compliance with the monitoring requirements specified above shall be taken at the following location(s):

at Outfall 008. See Part C. IV, Requirements Applicable to Stormwater Outfalls.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 12 Samples taken in compliance with the monitoring requirements specif ied above shall be taken at the following location(s):

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I. I.

For Outfall 009

, Latitude 40º 13' 29.00"

, Longitude 75º 35' 26.00"

, River Mile Index 48.34

, Stream Code 00833 Receiving Waters:

Schuylkill River (WWF, MF)

Type of Effluent:

Stormwater from area around control building, instrument shop and storage.

1.

The permittee is authorized to discharge during the period from Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Outfall 009 is not monitored. See Part C. IV, Requirements Applicable to Stormwater Outfalls.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 13 Samples taken in compliance with the monitoring requirements specif ied above shall be taken at the following location(s):

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I. J.

For Outfall 010

, Latitude 40º 13' 15.00"

, Longitude 75º 35' 23.00"

, River Mile Index 48.11

, Stream Code 00833 Receiving Waters:

Schuylkill River (WWF, MF)

Type of Effluent:

Schuylkill River water from makeup header drain.

1.

The permittee is authorized to discharge during the period from Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Outfall 010 is not monitored.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 14 Samples taken in compliance with the monitoring requirements specif ied above shall be taken at the following location(s):

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I. K.

For Outfall 011

, Latitude 40º 13' 15.00"

, Longitude 75º 35' 23.00"

, River Mile Index 48.11

, Stream Code 00833 Receiving Waters:

Schuylkill River (WWF, MF)

Type of Effluent:

Traveling screen backwash, Schuylkill River pumphouse pipe leakage, pump cooling water and air conditioning condensate.

1.

The permittee is authorized to discharge during the period from Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Outfall 011 is not monitored.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 15 Outfall 012, Continued (from Permit Effective Date through Permit Expiration Date )

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I. L.

For Outfall 012

, Latitude 40º 13' 15.00"

, Longitude 75º 35' 23.00"

, River Mile Index 48.06

, Stream Code 00833 Receiving Waters:

Schuylkill River (WWF, MF)

Type of Effluent:

Dredge spoils excess water and stormwater from service roads.

1.

The permittee is authorized to discharge during the period from Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Parameter Effluent Limitations Monitoring Requirements Mass Units (lbs/day) (1)

Concentrations (mg/L)

Minimum (2)

Measurement Frequency Required Sample Type Average Monthly Average Weekly Minimum Average Monthly Daily Maximum Instant.

Maximum Flow (MGD)

Report Report Daily Max XXX XXX XXX XXX Daily when Discharging Estimate pH (S.U.)

XXX XXX Report Inst Min XXX XXX Report Daily when Discharging Grab Total Suspended Solids XXX XXX XXX Report 100.0 XXX Daily when Discharging Composite Oil and Grease XXX XXX XXX Report Report XXX Daily when Discharging Grab Iron, Dissolved XXX XXX XXX Report Report XXX Daily when Discharging Composite Iron, Total XXX XXX XXX Report 7.0 XXX Daily when Discharging Composite Samples taken in compliance with the monitoring requirements specified above shall be taken at the following location(s):

at Outfall 012. Sample daily during dredging operation and when discharging. See Part C. IV, Requirements Applicable to Stormwater Outfalls.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 16 Samples taken in compliance with the monitoring requirements specif ied above shall be taken at the following location(s):

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I. M. For Outfall 013

, Latitude 40º 13' 23.00"

, Longitude 75º 35' 7.00"

, River Mile Index 0.4000

, Stream Code 01640 Receiving Waters:

Possum Hollow Run (WWF, MF)

Type of Effluent:

Stormwater from service roads and parking lots

1.

The permittee is authorized to discharge during the period from Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Outfall 013 is not monitored. See Part C. IV, Requirements Applicable to Stormwater Outfalls.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 17 Samples taken in compliance with the monitoring requirements specif ied above shall be taken at the following location(s):

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I. N.

For Outfall 014

, Latitude 40º 13' 26.00"

, Longitude 75º 35' 4.00"

, River Mile Index 0.43

, Stream Code 01640 Receiving Waters:

Possum Hollow Run (WWF)

Type of Effluent:

Stormwater from service roads and parking lots

1.

The permittee is authorized to discharge during the period from Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Outfall 014 is not monitored. See Part C. IV, Requirements Applicable to Stormwater Outfalls.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 18 Samples taken in compliance with the monitoring requirements specif ied above shall be taken at the following location(s):

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I. O. For Outfall 015

, Latitude 40º 13' 28.20"

, Longitude 75º 35' 1.00"

, River Mile Index 0.49

, Stream Code 01640 Receiving Waters:

Possum Hollow Run (WWF, MF)

Type of Effluent:

Stormwater from service roads and parking lots.

1.

The permittee is authorized to discharge during the period from Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Outfall 015 is not monitored. See Part C. IV, Requirements Applicable to Stormwater Outfalls.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 19 Samples taken in compliance with the monitoring requirements specif ied above shall be taken at the following location(s):

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I. P.

For Outfall 016

, Latitude 40º 13' 33.00"

, Longitude 75º 34' 57.00"

, River Mile Index 0.55

, Stream Code 01640 Receiving Waters:

Possum Hollow Run (WWF)

Type of Effluent:

Stormwater from service roads and parking lots

1.

The permittee is authorized to discharge during the period from Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Outfall 016 is not monitored. See Part C. IV, Requirements Applicable to Stormwater Outfalls.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 20 Samples taken in compliance with the monitoring requirements specif ied above shall be taken at the following location(s):

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I. Q. For Outfall 017

, Latitude 40º 13' 33.20"

, Longitude 75º 34' 56.30"

, River Mile Index 0.55

, Stream Code 01640 Receiving Waters:

Possum Hollow Run (WWF, MF)

Type of Effluent:

Stormwater from service roads and parking lots

1.

The permittee is authorized to discharge during the period from Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Outfall 017 is not monitored. See Part C. IV, Requirements Applicable to Stormwater Outfalls.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 21 Samples taken in compliance with the monitoring requirements specif ied above shall be taken at t he following location(s):

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I. R.

For Outfall 018

, Latitude 40º 13' 35.00"

, Longitude 75º 34' 54.00"

, River Mile Index 0.64

, Stream Code 01640 Receiving Waters:

Possum Hollow Run (WWF)

Type of Effluent:

Stormwater from yard drains

1.

The permittee is authorized to discharge during the period from Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Outfall 018 is not monitored. See Part C. IV, Requirements Applicable to Stormwater Outfalls.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 22 Outfall 019, Continued (from Permit Effective Date through Permit Expiration Date )

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I. S.

For Outfall 019

, Latitude 40º 13' 35.30"

, Longitude 75º 34' 53.10"

, River Mile Index 0.66

, Stream Code 01640 Receiving Waters:

Possum Hollow Run (WWF, MF)

Type of Effluent:

Stormwater from service roads and parking lots

1.

The permittee is authorized to discharge during the period from Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Parameter Effluent Limitations Monitoring Requirements Mass Units (lbs/day) (1)

Concentrations (mg/L)

Minimum (2)

Measurement Frequency Required Sample Type Average Monthly Average Weekly Minimum Average Monthly Daily Maximum Instant.

Maximum pH (S.U.)

XXX XXX XXX XXX Report XXX 1/6 months Grab Total Suspended Solids XXX XXX XXX XXX Report XXX 1/6 months Grab Oil and Grease XXX XXX XXX XXX Report XXX 1/6 months Grab Copper, Total XXX XXX XXX XXX Report XXX 1/6 months Grab Iron, Total XXX XXX XXX XXX Report XXX 1/6 months Grab Zinc, Total XXX XXX XXX XXX Report XXX 1/6 months Grab Samples taken in compliance with the monitoring requirements specified above shall be taken at the following location(s):

at Outfall 019. See Part C. IV, Requirements Applicable to Stormwater Outfalls.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 23 Outfall 020, Continued (from Permit Effective Date through Permit Expiration Date )

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I. T.

For Outfall 020

, Latitude 40º 13' 34.00"

, Longitude 75º 34' 49.00"

, River Mile Index 0.44

, Stream Code 01640 Receiving Waters:

Possum Hollow Run (WWF)

Type of Effluent:

Perkiomen Creek make up storage tank overflow.

1.

The permittee is authorized to discharge during the period from Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Parameter Effluent Limitations Monitoring Requirements Mass Units (lbs/day) (1)

Concentrations (mg/L)

Minimum (2)

Measurement Frequency Required Sample Type Average Monthly Average Weekly Minimum Average Monthly Daily Maximum Instant.

Maximum Flow (MGD)

Report Report Daily Max XXX XXX XXX XXX 1/discharge Calculation pH (S.U.)

XXX XXX 6.0 Inst Min XXX XXX 9.0 1/discharge Grab Total Suspended Solids XXX XXX XXX Report 100 100 1/discharge Grab Samples taken in compliance with the monitoring requirements specified above shall be taken at the following location(s):

at Outfall 020

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 24 Outfall 021, Continued (from Permit Effective Date through Permit Expiration Date )

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I. U.

For Outfall 021

, Latitude 40º 13' 37.00"

, Longitude 75º 35' 25.00"

, River Mile Index 48.38

, Stream Code 00833 Receiving Waters:

Schuylkill River (WWF, MF)

Type of Effluent:

Stormwater from cooling tower screen wash and acid/chlorine storage area and cooling tower drift losses and cooling tower leakage during filling of the tower following startup.

1.

The permittee is authorized to discharge during the period from Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting document s and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Parameter Effluent Limitations Monitoring Requirements Mass Units (lbs/day) (1)

Concentrations (mg/L)

Minimum (2)

Measurement Frequency Required Sample Type Average Monthly Average Weekly Minimum Average Monthly Daily Maximum Instant.

Maximum pH (S.U.)

XXX XXX XXX XXX Report XXX 1/6 months Grab pH (S.U.)

XXX XXX XXX XXX Report XXX 1/discharge*

Grab Biochemical Oxygen Demand (BOD5)

XXX XXX XXX XXX Report XXX 1/discharge*

Grab Biochemical Oxygen Demand (BOD5)

XXX XXX XXX XXX Report XXX 1/6 months Grab Chemical Oxygen Demand (COD)

XXX XXX XXX XXX Report XXX 1/6 months Grab Chemical Oxygen Demand (COD)

XXX XXX XXX XXX Report XXX 1/discharge*

Grab Total Suspended Solids XXX XXX XXX XXX Report XXX 1/6 months Grab Total Suspended Solids XXX XXX XXX XXX Report XXX 1/discharge*

Grab Oil and Grease XXX XXX XXX XXX Report XXX 1/6 months Grab Oil and Grease XXX XXX XXX XXX Report XXX 1/discharge*

Grab

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 25 Outfall 021, Continued (from Permit Effective Date through Permit Expiration Date )

Parameter Effluent Limitations Monitoring Requirements Mass Units (lbs/day) (1)

Concentrations (mg/L)

Minimum (2)

Measurement Frequency Required Sample Type Average Monthly Average Weekly Minimum Average Monthly Daily Maximum Instant.

Maximum Total Nitrogen XXX XXX XXX XXX Report XXX 1/6 months Grab Total Nitrogen XXX XXX XXX XXX Report XXX 1/discharge*

Grab Total Phosphorus XXX XXX XXX XXX Report XXX 1/6 months Grab Total Phosphorus XXX XXX XXX XXX Report XXX 1/discharge*

Grab Samples taken in compliance with the monitoring requirements specified above shall be taken at the following location(s):

at Outfall 021.

• For non-storm wastewater discharge. Semiannual monitoring is for stormwater discharge events. See Part C. IV, Requirements Applicable to Stormwater Outfalls.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 26 Samples taken in compliance with the monitoring requirements specified above shall be taken at the following location(s):

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I. V.

For Outfall 022

, Latitude 40º 13' 18.00"

, Longitude 75º 35' 16.00"

, River Mile Index 0.19

, Stream Code 01640 Receiving Waters:

Possum Hollow Run (WWF)

Type of Effluent:

Stormwater from wastewater treatment plant and service roads

1.

The permittee is authorized to discharge during the period from Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Outfall 022 is not monitored. See Part C. IV, Requirements Applicable to Stormwater Outfalls.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 27 Outfall 024, Continued (from Permit Effective Date through Permit Expiration Date )

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I.

W.

For Outfall 024

, Latitude 40º 13' 17.60"

, Longitude 75º 35' 15.80"

, River Mile Index 0.19

, Stream Code 01640 Receiving Waters:

Possum Hollow Run (WWF)

Type of Effluent:

Stormwater from service road near wastewater treatment plant and emergency overflow or bypass for wastewater from holding pond

1.

The permittee is authorized to discharge during the period from Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Parameter Effluent Limitations Monitoring Requirements Mass Units (lbs/day) (1)

Concentrations (mg/L)

Minimum (2)

Measurement Frequency Required Sample Type Average Monthly Average Weekly Minimum Average Monthly Daily Maximum Instant.

Maximum pH (S.U.)

XXX XXX XXX XXX Report XXX Daily when Discharging Grab Total Suspended Solids XXX XXX XXX 30.0 100.0 100 Daily when Discharging Grab Total Dissolved Solids XXX XXX XXX Report Report XXX Daily when Discharging Grab Oil and Grease XXX XXX XXX 15 20 30 Daily when Discharging Grab Copper, Total XXX XXX XXX Report Report XXX Daily when Discharging Grab Acrylamide XXX XXX XXX Report Report XXX Daily when Discharging Grab Samples taken in compliance with the monitoring requirements specified above shall be taken at the following location(s):

at Outfall 024. Samples shall be taken during emergency overflow/bypass for holding pond. See Part C. IV, Requirements Applicable to Stormwater Outfalls.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 28 Outfall 030, Continued (from Permit Effective Date through Permit Expiration Date )

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I. X.

For Outfall 030

, Latitude 40º 14' 0.20"

, Longitude 75º 35' 15.10"

, River Mile Index 0.3700

, Stream Code 01641 Receiving Waters:

Sanatoga Creek (WWF, MF)

Type of Effluent:

Stormwater from yard drains and emergency overflow or bypass for wastewater from the emergency spray pond.

1.

The permittee is authorized to discharge during the period from Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Parameter Effluent Limitations Monitoring Requirements Mass Units (lbs/day) (1)

Concentrations (mg/L)

Minimum (2)

Measurement Frequency Required Sample Type Average Monthly Average Weekly Minimum Average Monthly Daily Maximum Instant.

Maximum pH (S.U.)

XXX XXX XXX XXX Report XXX 1/6 months Grab Total Suspended Solids XXX XXX XXX XXX Report XXX 1/6 months Grab Total Dissolved Solids XXX XXX XXX Report Report XXX Daily when*

Discharging Grab Oil and Grease XXX XXX XXX XXX Report XXX 1/6 months Grab Total Phosphorus XXX XXX XXX Report Report XXX Daily when*

Discharging Grab Copper, Total XXX XXX XXX XXX Report XXX 1/6 months Grab Iron, Total XXX XXX XXX XXX Report XXX 1/6 months Grab Zinc, Total XXX XXX XXX XXX Report XXX 1/6 months Grab Samples taken in compliance with the monitoring requirements specified above shall be taken at the following location(s):

at Outfall 030. *Samples shall be taken during emergency overflow/bypass for emergency spray pond. See Part C. IV, Requirements Applicable to Stormwater Outfalls.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 29 Outfall 001, Continued (from Permit Effective Date through Permit Expiration Date )

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I. Y.

For Outfall 031

, Latitude 40º 13' 13.00"

, Longitude 75º 35' 22.00"

, River Mile Index 48.01

, Stream Code 00833 Receiving Waters:

Schuylkill River (WWF, MF)

Type of Effluent:

Cooling tower blow down, laundry drains, holding pond effluent, spray pond effluent, closed cooling water and manhole dewatering water.

1.

The permittee is authorized to discharge during the period from Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Parameter Effluent Limitations Monitoring Requirements Mass Units (lbs/day) (1)

Concentrations (mg/L)

Minimum (2)

Measurement Frequency Required Sample Type Average Monthly Average Weekly Minimum Average Monthly Daily Maximum Instant.

Maximum Flow (MGD)

Report Report Daily Max XXX XXX XXX XXX Continuous Measured pH (S.U.)

XXX XXX 6.0 Inst Min XXX XXX 9.0 1/day Grab Total Residual Oxidantsb XXX XXX XXX XXX 0.2 0.5 1/day Grab Temperature (ºF)c XXX XXX Report Avg Mo Report Daily Max XXX 110 Continuous I-S Total Suspended Solids XXX XXX XXX Report Report XXX 1/dayd 24-Hr Composite Total Suspended Solids Intake XXX XXX XXX Report Report XXX 1/dayd 24-Hr Composite Total Suspended Solids Effluent Net XXX XXX XXX 30 60 75 1/dayd Calculation Total Dissolved Solids XXX XXX XXX Report Report XXX 1/day 24-Hr Composite Fecal Coliform (No./100 ml)

XXX XXX XXX Report Report XXX 1/day Grab Aluminum, Total XXX XXX XXX 4.97 7.75 12.43 1/day 24-Hr Composite Chromium, Total XXX XXX XXX 0.2 0.2 XXX 1/day 24-Hr Composite

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 30 Copper, Total XXX XXX XXX Report Report XXX 1/day 24-Hr Composite Iron, Total XXX XXX XXX Report Report XXX 1/day 24-Hr Composite Lead, Total XXX XXX XXX Report Report XXX 1/day 24-Hr Composite Sulfate, Total XXX XXX XXX Report Report XXX 1/day 24-Hr Composite Zinc, Total XXX XXX XXX 1.0 1.0 XXX 1/day 24-Hr Composite Acrylamide XXX XXX XXX Report Report XXX 1/day 24-Hr Composite Chloride XXX XXX XXX Report Report XXX 1/day 24-Hr Composite Bromide XXX XXX XXX Report Report XXX 1/day 24-Hr Composite Samples taken in compliance with the monitoring requirements specified above shall be taken at the following location(s):

at Outfall 031. This emergency discharge only occurs when Outfall 001 diffuser is restricted and during diffuser maintenance activities.

b See Part C.I. Other Requirement Nos. J, K and L c See Part C.I. Other Requirement No. E d See Part C. I. Other Requirement Nos R, S and T.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 31 Outfall 201, Continued (from Permit Effective Date through Permit Expiration Date )

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I. Z.

For IMP 201

, Latitude 40º 13' 13.00"

, Longitude 75º 35' 22.00"

, River Mile Index 48.01

, Stream Code 00833 Receiving Waters:

Schuylkill River (WWF, MF) via Outfall 001 Type of Effluent:

Wastewater from holding pond (non-hazardous and industrial wastewater generated as part of the routine plant operation, maintenance and testing), boiler blowdown, and reverse osmosis reject water.

1.

The permittee is authorized to discharge during the period from Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Parameter Effluent Limitations Monitoring Requirements Mass Units (lbs/day) (1)

Concentrations (mg/L)

Minimum (2)

Measurement Frequency Required Sample Type Average Monthly Average Weekly Minimum Average Monthly Daily Maximum Instant.

Maximum Flow (GPD)

Report Report Daily Max XXX XXX XXX XXX 1/week Measured Total Suspended Solids XXX XXX XXX 30 100 100 2/month Grab Oil and Grease XXX XXX XXX 15 20 30 2/month Grab Samples taken in compliance with the monitoring requirements specified above shall be taken at the following location(s):

at IMP 201 (holding pond)

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 32 Outfall 301, Continued (from Permit Effective Date through Permit Expiration Date )

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I.

AA.

For IMP 301

, Latitude 40º 13' 13.00"

, Longitude 75º 35' 22.00"

, River Mile Index 48.01

, Stream Code 00833 Receiving Waters:

Schuylkill River (WWF, MF) via Outfall 001 Type of Effluent:

Wastewater from radioactive waste treatment plant and laundry drain collection system.

1.

The permittee is authorized to discharge during the period from Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Parameter Effluent Limitations Monitoring Requirements Mass Units (lbs/day) (1)

Concentrations (mg/L)

Minimum (2)

Measurement Frequency Required Sample Type Average Monthly Average Weekly Minimum Average Monthly Daily Maximum Instant.

Maximum Flow (GPD)

Report Report Daily Max XXX XXX XXX XXX 1/week Measured Total Suspended Solids XXX XXX XXX 30 100 100 Daily when Discharging*

Grab Oil and Grease XXX XXX XXX 15 20 30 Daily when Discharging*

Grab Samples taken in compliance with the monitoring requirements specified above shall be taken at the following location(s):

at IMP 301. *Sample shall be taken daily during discharge of wastewater from the laundry drain collection system.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 33 Outfall 401, Continued (from Permit Effective Date through Permit Expiration Date )

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS I.

BB.

For IMP 401

, Latitude 40º 13' 13.00"

, Longitude 75º 35' 22.00"

, River Mile Index 48.01

, Stream Code 00833 Receiving Waters:

Schuylkill River (WWF, MF) via Outfall 001 Type of Effluent:

Wastewater from emergency spray pond.

1.

The permittee is authorized to discharge during the period from Permit Effective Date through Permit Expiration Date.

2.

Based on the anticipated wastewater characteristics and f lows described in the permit application and its supporting documents and/or amendments, the following effluent limitations and monitoring requirements apply (see also Additional Requirements and Footnotes).

Parameter Effluent Limitations Monitoring Requirements Mass Units (lbs/day) (1)

Concentrations (mg/L)

Minimum (2)

Measurement Frequency Required Sample Type Average Monthly Average Weekly Minimum Average Monthly Maximum Instant.

Maximum Flow (GPD)

Report Report Daily Max XXX XXX XXX XXX Daily when Discharging Measured Total Phosphorus XXX XXX XXX Report Report Daily Max XXX 1/week Grab Samples taken in compliance with the monitoring requirements specified above shall be taken at the following location(s):

at Outfall 401. Flow measurement shall be taken from the emergency spray pond overflow location. Phosphorus sample shall be taken from the spray pond.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 34 Additional Requirements The permittee may not discharge:

1.

Floating solids, scum, sheen or substances that result in observed deposits in the receiving water. (25 Pa Code

§ 92a.41(c))

2.

Oil and grease in amounts that cause a film or sheen upon or discoloration of the waters of this Commonwealth or adjoining shoreline, or that exceed 15 mg/l as a daily average or 30 mg/l at any time (or lesser amounts if specified in this permit). (25 Pa. Code § 92a.47(a)(7), § 95.2(2))

3.

Substances in concentration or amounts sufficient to be inimical or harmful to the water uses to be protected or to human, animal, plant or aquatic life. (25 Pa Code § 93.6(a))

4.

Foam or substances that produce an observed change in the color, taste, odor or turbidity of the receiving water, unless those conditions are otherwise controlled through effluent limitations or other requirements in this permit. For the purpose of determining compliance with this condition, DEP will compare conditions in the receiving water upstream of the discharge to conditions in the receiving water approximately 100 feet downstream of the discharge to determine if there is an observable change in the receiving water. (25 Pa Code § 92a.41(c))

Footnotes (1) When sampling to determine compliance with mass ef f luent limitations, the discharge f low at the time of sampling must be measured and recorded.

(2) This is the minimum number of sampling events required. Permittees are encouraged, and it may be advantageous in demonstrating compliance, to perform more than the minimum number of sampling events.

Supplemental Information (1) The effluent limitations for Outfalls 001, 003, 005, 010, 011, 012, 020, 024, 030 and 031 were determined using effluent discharge rates of 14.2 MGD, 1.1 MGD, 1.1 MGD, 0.1 MGD, 0.2 MGD, 0.01 MGD,1.5 MGD, 0.1 MGD, 0.5 MGD and 14.2 MGD respectively.

(2) The effluent limitations for Monitoring Points 201, 301 and 401 were determined using effluent discharge rates of, 0.3 MGD, 0.001 MGD and 0.1 MGD respectively.

(3) The effluent limitations for Outfalls 002, 004, 006, 007, 008, 009, 013, 014, 015, 016, 017, 018, 019, and 022 were determined based on an average stormwater f low.

PART A - EFFLUENT LIMITATIONS, MONITORING, RECORDKEEPING AND REPORTING REQUIREMENTS (Continued)

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 35 Average Best Management Practices Bypass Calendar Week Composite Sample Composite Sample Daily Average Temperature Daily Discharge Discharge Monitoring Report II.

DEFINITIONS At Outfall (XXX) means a sampling location in outfall line XXX below the last point at which wastes are added to outfall line (XXX), or where otherwise specified.

refers to the use of an arithmetic mean, unless otherwise specified in this permit. (40 CFR 122.41(l)(4)(iii))

(BMPs) means schedules of activities, prohibitions of practices, maintenance procedures and other management practices to prevent or reduce the pollutant loading to surf ace waters of the Commonwealth. The term also includes treatment requirements, operating procedures and practices to control plant site runoff, spillage or leaks, sludge or waste disposal, or drainage from raw material storage. The term includes activities, facilities, measures, planning or procedures used to minimize accelerated erosion and sedimentation and manage stormwater to protect, maintain, reclaim, and restore the quality of waters and the existing and designated uses of waters within this Commonwealth before, during and after earth disturbance activities. (25 Pa. Code § 92a.2) means the intentional diversion of waste streams from any portion of a treatment facility. (40 CFR 122.41(m)(1)(i))

is defined as the seven consecutive days from Sunday through Saturday, unless the permittee has been given permission by DEP to provide weekly data as Monday through Friday based on showing excellent performance of the facility and a history of compliance. In cases when the week falls in two separate months, the month with the most days in that week shall be the month for reporting.

means the Federal Water Pollution Control Act, as amended. (33 U.S.C.A. §§ 1251 to 1387).

Chemical Additive means a chemical product (including products of disassociation and degradation, collectively products) introduced into a waste stream that is used for cleaning, disinfecting, or maintenance and which may be detected in effluent discharged to waters of the Commonwealth. The term generally excludes chemicals used for neutralization of waste streams, the production of goods, and treatment of wastewater.

(for all except GC/MS volatile organic analysis) means a combination of individual samples (at least eight for a 24-hour period or four for an 8-hour period) of at least 100 milliliters (mL) each obtained at spaced time intervals during the compositing period. The composite must be f low-proportional; either the volume of each individual sample is proportional to discharge f low rates, or the sampling interval is proportional to the f low rates over the time period used to produce the composite. (EPA Form 2C)

(for GC/MS volatile organic analysis) consists of at least four aliquots or grab samples collected during the sampling event (not necessarily f low proportioned). A separate analysis should be performed for each sample and the results should be averaged.

means the average of all temperature measurements made, or the mean value plot of the record of a continuous automated temperature recording instrument, either during a calendar day or during the operating day if f lows are of a shorter duration.

means the discharge of a pollutant measured during a calendar day or any 24-hour period that reasonably represents the calendar day for purposes of sampling. For pollutants with limitations expressed in units of mass, the "daily discharge" is calculated as the total mass of the pollutant discharged over the day. For pollutants with limitations expressed in other units of measurement, the "daily discharge" is calculated as the average measurement of the pollutant over the day. (25 Pa. Code § 92a.2, 40 CFR 122.2) means the highest allowable "daily discharge."

(DMR) means the DEP or EPA supplied form(s) for the reporting of self-monitoring results by the permittee. (25 Pa. Code § 92a.2, 40 CFR 122.2)

Clean Water Act Daily Maximum Discharge Limitation

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 36 Estimated Flow Hazardous Substance Hauled-In Wastes Instantaneous Maximum Effluent Limitation Measured Flow Monthly Average Discharge Limitation Municipal Waste Non-contact Cooling Water Residual Waste Severe Property Damage Stormwater Associated With Industrial Activity means any method of liquid volume measurement based on a technical evaluation of the sources contributing to the discharge including, but not limited to, pump capabilities, water meters and batch discharge volumes.

means the average of a set of n sample results given by the nth root of their product.

Grab Sample means an individual sample of at least 100 mL collected at a randomly selected time over a period not to exceed 15 minutes. (EPA Form 2C) means any substance designated under 40 CFR Part 116 pursuant to Section 311 of the Clean Water Act. (40 CFR 122.2) means any waste that is introduced into a treatment facility through any method other than a direct connection to the wastewater collection system. The term includes wastes transported to and disposed of within the treatment facility or other entry points within the collection system.

stabilized.

(i-s) means a calibrated device is immersed in the wastewater until the reading is means the highest allowable discharge of a concentration or mass of a substance at any one time as measured by a grab sample. (25 Pa. Code § 92a.2) means any method of liquid volume measurement, the accuracy of which has been previously demonstrated in engineering practice, or for which a relationship to absolute volume has been obtained.

means the highest allowable average of "daily discharges" over a calendar month, calculated as the sum of all "daily discharges" measured during a calendar month divided by the number of "daily discharges" measured during that month. (25 Pa. Code § 92a.2) means garbage, refuse, industrial lunchroom or office waste and other material, including solid, liquid, semisolid or contained gaseous material resulting from operation of residential, municipal, commercial or institutional establishments and from community activities; and sludge not meeting the definition of residual or hazardous waste under this section from a municipal, commercial or institutional water supply treatment plant, waste water treatment plant or air pollution control facility. (25 Pa. Code § 271.1) means water used to reduce temperature which does not come in direct contact with any raw material, intermediate product, waste product (other than heat), or finished product.

means garbage, refuse, other discarded material or other waste, including solid, liquid, semisolid or contained gaseous materials resulting from industrial, mining and agricultural operations and sludge from an industrial, mining or agricultural water supply treatment facility, wastewater treatment facility or air pollution control facility, if it is not hazardous. The term does not include coal refuse as defined in the Coal Ref use Disposal Control Act. The term does not include treatment sludges from coal mine drainage treatment plants, disposal of which is being carried on under and in compliance with a valid permit issued under the Clean Streams Law. (25 Pa Code § 287.1) means substantial physical damage to property, damage to the treatment facilities that causes them to become inoperable, or substantial and permanent loss of natural resources that can reasonably be expected to occur in the absence of a bypass. Severe property damage does not mean economic loss caused by delays in production. (40 CFR 122.41(m)(1)(ii))

§ 92a.2) means the runoff from precipitation, snow melt runoff, and surf ace runoff and drainage. (25 Pa. Code means the discharge from any conveyance that is used for collecting and conveying stormwater and that is directly related to manufacturing, processing, or raw materials storage areas at an industrial plant, and as defined at 40 CFR 122.26(b)(14) (i) - (ix) & (xi) and 25 Pa. Code § 92a.2.

Geometric Mean Immersion Stabilization Stormwater

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 37 Toxic Pollutant in 40 CFR Part 136.

means the total dissolved (filterable) solids as determined by use of the method specified means those pollutants, or combinations of pollutants, including disease-causing agents, which after discharge and upon exposure, ingestion, inhalation or assimilation into any organism, either directly from the environment or indirectly by ingestion thro ugh food chains may, on the basis of information available to DEP cause death, disease, behavioral abnormalities, cancer, genetic mutations, physiological malfunctions, including malfunctions in reproduction, or physical deformations in these organisms or their offspring. (25 Pa. Code § 92a.2)

Total Dissolved Solids

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 38 III.

SELF-MONITORING, REPORTING AND RECORDKEEPING A. Representative Sampling

1.

Samples and measurements taken for the purpose of monitoring shall be representative of the monitored activity (40 CFR 122.41(j)(1)). Representative sampling includes the collection of samples, where possible, during periods of adverse weather, changes in treatment plant performance and changes in treatment plant loading. If possible, effluent samples must be collected where the effluent is well mixed near the center of the discharge conveyance and at the approximate mid-depth point, where the turbulence is at a maximum and the settlement of solids is minimized. (40 CFR 122.48, 25 Pa. Code § 92a.61)

2.

Records Retention (40 CFR 122.41(j)(2))

Except for records of monitoring information required by this permit related to the permittee's sludge use and disposal activities which shall be retained for a period of at least 5 years, all records of monitoring activities and results (including all original strip chart recordings for continuous monitoring instrumentation and calibration and maintenance records), copies of all reports required by this permit, and records of all data used to complete the application for this permit shall be retained by the permittee for 3 years from the date of the sample measurement, report or application, unless a longer retention period is required by the permit. The 3-year period shall be extended as requested by DEP or the EPA Regional Administrator.

3.

Recording of Results (40 CFR 122.41(j)(3))

For each measurement or sample taken pursuant to the requirements of this permit, the permittee shall record the following information:

a.

The exact place, date and time of sampling or measurements.

b.

The person(s) who performed the sampling or measurements.

c.

The date(s) the analyses were performed.

d.

The person(s) who performed the analyses.

e.

The analytical techniques or methods used; and the associated detection level.

f.

The results of such analyses.

4. Test Procedures

a.

Facilities that test or analyze environmental samples used to demonstrate compliance with this permit shall be in compliance with laboratory accreditation requirements of Act 90 of 2002 (27 Pa.

C.S. §§ 4101-4113) and 25 Pa. Code Chapter 252, relating to environmental laboratory accreditation.

b.

Test procedures (methods) for the analysis of pollutants or pollutant parameters shall be those approved under 40 CFR Part 136 or required under 40 CFR Chapter I, Subchapters N or O, unless the method is specified in this permit or has been otherwise approved in writing by DEP. (40 CFR 122.41(j)(4), 122.44(i)(1)(iv))

c.

Test procedures (methods) for the analysis of pollutants or pollutant parameters shall be sufficiently sensitive. A method is sufficiently sensitive when 1) the method minimum level is at or below the level of the effluent limit established in the permit for the measured pollutant or pollutant parameter; or 2) the method has the lowest minimum level of the analytical methods approved under 40 CFR Part 136 or required under 40 CFR Chapter I, Subchapters N or O, for the measured pollutant or pollutant parameter; or 3) the method is specified in this permit or has been otherwise approved in writing by DEP for the measured pollutant or pollutant parameter. Permittees have the option of providing matrix or sample-specific minimum levels rather than the published levels. (40 CFR 122.44(i)(1)(iv))

5.

Quality/Assurance/Control

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 39 In an effort to assure accurate self -monitoring analyses results:

a.

The permittee, or its designated laboratory, shall participate in the periodic scheduled quality assurance inspections conducted by DEP and EPA. (40 CFR 122.41(e), 122.41(i)(3))

b.

The permittee, or its designated laboratory, shall develop and implement a program to assure the quality and accurateness of the analyses performed to satisfy the requirements of this permit, in accordance with 40 CFR Part 136. (40 CFR 122.41(j)(4))

B. Reporting of Monitoring Results

1.

The permittee shall effectively monitor the operation and efficiency of all wastewater treatment and control facilities, and the quantity and quality of the discharge(s) as specified in this permit. (25 Pa. Code

§§ 92a.3(c), 92a.41(a), 92a.44, 92a.61(i) and 40 CFR §§ 122.41(e), 122.44(i)(1))

2.

The permittee shall use DEPs electronic Discharge Monitoring Report (eDMR) system to report the results of compliance monitoring under this permit (see www.dep.pa.gov/edmr). Permittees that are not using the eDMR system as of the effective date of this permit shall submit the necessary registration and trading partner agreement forms to DEPs Bureau of Clean Water (BCW) within 30 days of the effective date of this permit and begin using the eDMR system when notified by DEP BCW to do so. (25 Pa.

Code §§ 92a.3(c), 92a.41(a), 92a.61(g) and 40 CFR § 122.41(l)(4))

3.

Submission of a physical (paper) copy of a Discharge Monitoring Report (DMR) is acceptable under the following circumstances:

a.

For a permittee that is not yet using the eDMR system, the permittee shall submit a physical copy of a DMR to the DEP regional office that issued the permit during the interim period between the submission of registration and trading partner agreement forms to DEP and DEPs notification to begin using the eDMR system.

b.

For any permittee, as a contingency a physical DMR may be mailed to the DEP regional office that issued the permit if there are technological malfunction(s) that prevent the successful submission of a DMR through the eDMR system. In such situations, the permittee shall submit the DMR through the eDMR system within 5 days following remedy of the malfunction(s).

4.

DMRs must be completed in accordance with DEPs published DMR instructions (3800 -FM-BCW0463).

DMRs must be received by DEP no later than 28 days following the end of the monitoring period. DMRs are based on calendar reporting periods and must be received by DEP in accordance with the following schedule:

Monthly DMRs must be received within 28 days following the end of each calendar month.

Quarterly DMRs must be received within 28 days following the end of each calendar quarter, i.e.,

January 28, April 28, July 28, and October 28.

Semiannual DMRs must be received within 28 days following the end of each calendar semiannual period, i.e., January 28 and July 28.

Annual DMRs must be received by January 28, unless Part C of this permit requires otherwise.

5.

The permittee shall complete all Supplemental Reporting forms (Supplemental DMRs) attached to this permit, or an approved equivalent, and submit the signed, completed forms as attachments to the DMR, through DEPs eDMR system. DEPs Supplemental Laboratory Accreditation Form (3800 -FM-BCW0189) must be completed and submitted to DEP with the first DMR following issuance of this permit, and anytime thereafter when changes to laboratories or methods occur. (25 Pa. Code §§ 92a.3(c),

92a.41(a), 92a.61(g) and 40 CFR § 122.41(l)(4))

6.

The completed DMR Form shall be signed and certified by either of the following applicable persons, as defined in 25 Pa. Code § 92a.22:

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 40 For a corporation - by a principal executive officer of at least the level of vice president, or an authorized representative, if the representative is responsible for the overall operation of the facility from which the discharge described in the NPDES form originates.

For a partnership or sole proprietorship - by a general partner or the proprietor, respectively.

For a municipality, state, federal or other public agency - by a principal executive officer or ranking elected official.

If signed by a person other than the above and for co -permittees, written notification of delegation of DMR signatory authority must be submitted to DEP in advance of or along with the relevant DMR form.

(40 CFR § 122.22(b))

7.

If the permittee monitors any pollutant at monitoring points as designated by this permit, using analytical methods described in Part A III.A.4. herein, more frequently than the permit requires, the results of this monitoring shall be incorporated, as appropriate, into the calculations used to report self -monitoring data on the DMR. (40 CFR 122.41(l)(4)(ii))

C. Reporting Requirements

1.

Planned Changes to Physical Facilities - The permittee shall give notice to DEP as soon as possible but no later than 30 days prior to planned physical alterations or additions to the permitted facility. A permit under 25 Pa. Code Chapter 91 may be required for these situations prior to implementing the planned changes. A permit application, or other written submission to DEP, can be used to satisfy the notification requirements of this section.

Notice is required when:

a.

The alteration or addition to a permitted facility may meet one of the criteria for determining whether a facility is a new source in 40 CFR 122.29(b). (40 CFR 122.41(l)(1)(i))

b.

The alteration or addition could significantly change the nature or increase the quantity of pollutants discharged. This notification applies to pollutants which are not subject to effluent limitations in this permit. (40 CFR 122.41(l)(1)(ii))

c.

The alteration or addition results in a significant change in the permittee's sludge use or disposal practices, and such alteration, addition, or change may justify the application of permit conditions that are different from or absent in the existing permit, including notification of additional use or disposal sites not reported during the permit application process or not reported pursuant to an approved land application plan. (40 CFR 122.41(l)(1)(iii))

d.

The planned change may result in noncompliance with permit requirements. (40 CFR 122.41(l)(2))

2.

Planned Changes to Waste Stream - Under the authority of 25 Pa. Code § 92a.24(a), the permittee shall provide notice to DEP as soon as possible but no later than 45 days prior to any planned changes in the volume or pollutant concentration of its influent waste stream, as specified in paragraphs 2.a. and 2.b., below. Notice shall be provided on the Planned Changes to Waste Stream Supplemental Report (3800-FM-BCW0482), available on DEPs website. The permittee shall provide information on the quality and quantity of waste introduced into the facility, and any anticipated impact of the change on the quantity or quality of effluent to be discharged from the facility. The Report shall be sent via Certified Mail or other means to confirm DEPs receipt of the notification. DEP will determine if the submission of a new application and receipt of a new or amended permit is required.

a.

Introduction of New Pollutants (25 Pa. Code § 92a.24(a))

New pollutants are defined as parameters that meet all of the following criteria:

(i) Were not detected in the facilities influent waste stream as reported in the permit application; and

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 41 (ii) Have not been approved to be included in the permittees influent waste stream by DEP in writing.

The permittee shall provide notification of the introduction of new pollutants in accordance with paragraph 2 above. The permittee may not authorize the introduction of new pollutants until the permittee receives DEPs written approval.

b.

Increased Loading of Approved Pollutants (25 Pa. Code § 92a.24(a))

Approved pollutants are defined as parameters that meet one or more of the following criteria:

(i) Were detected in the facilities influent waste stream as reported in the permittees permit application; or (ii) Have been approved to be included in the permittees influent waste stream by DEP in writing; or (iii) Have an effluent limitation or monitoring requirement in this permit.

The permittee shall provide notification of the introduction of increased influent loading (lbs/day) of approved pollutants in accordance with paragraph 2 above when (1) the cumulative increase in influent loading (lbs/day) exceed s 20% of the maximum loading reported in the permit ap plication, or a loading previously approved by DEP, or (2) may cause an exceedance in the effluent of Effluent Limitation Guidelines (ELGs) or limitations in Part A of this permit, or (3) may cause interference or pass through at the facility (as defined at 40 CFR 403.3), or (4) may cause exceedances of the applicable water quality standards in the receiving stream. Unless specified otherwise in this permit, if DEP does not respond to the notification within 30 days of its receipt, the permittee may proceed with the increase in loading. The acceptance of increased loading of approved pollutants may not result in an exceedance of ELGs or effluent limitations and may not cause exceedances of the applicable water quality standards in the receiving stream.

3.

Reporting Requirements for Hauled -In Wastes

a.

Receipt of Residual Waste (i) The permittee shall document the receipt of all hauled-in residual wastes (including but not limited to wastewater from oil and gas wells, food processing waste, and landfill leachate), as defined at 25 Pa. Code § 287.1, that are received for processing at the treatment facility. The permittee shall report hauled -in residual wastes on a monthly basis to DEP on the Hauled In Residual Wastes Supplemental Report (3800-FM-BCW0450) as an attachment to the DMR. If no residual wastes were received during a month, submission of the Supplemental Report is not required.

The following information is required by the Supplemental Report. The information used to develop the Report shall be retained by the permittee for five years from the date of receipt and must be made available to DEP or EPA upon request.

(1) The dates that residual wastes were received.

(2) The volume (gallons) of wastes received.

(3) The license plate number of the vehicle transporting the waste to the treatment facility.

(4) The permit number(s) of the well(s) where residual wastes were generated, if applicable.

(5) The name and address of the generator of the residual wastes.

(6) The type of wastewater.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 42 The transporter of residual waste must maintain these and other records as part of the daily operational record (25 Pa. Code § 299.219). If the transporter is unable to provide this information or the permittee has not otherwise received the information from the generator, the residual wastes shall not be accepted by the permittee until such time as the permittee receives such information from the transporter or generator.

(ii) The following conditions apply to the characterization of residual wastes received by the permittee:

(1) If the generator is required to complete a chemical analysis of residual wastes in accordance with 25 Pa. Code § 287.51, the permittee must receive and maintain on file a chemical analysis of the residual wastes it receives. The chemical analysis must conform to the Bureau of Waste Managements Form 26R except as noted in paragraph (2), below. Each load of residual waste received must be covered by a chemical analysis if the generator is required to complete it.

(2) For wastewater generated from hydraulic fracturing operations (frac wastewater) within the first 30 production days of a well site, the chemical analysis may be a general frac wastewater characterization approved by DEP. Thereafter, the chemical analysis must be waste-specific and be reported on the Form 26R.

b.

Receipt of Municipal Waste (i) The permittee shall document the receipt of all hauled-in municipal wastes (including but not limited to septage and liquid sewage sludge), as defined at 25 Pa. Code § 271.1, that are received for processing at the treatment facility. The permittee shall report hauled -in municipal wastes on a monthly basis to DEP on the Hauled In Municipal Wastes Supplemental Report (3800-FM-BCW0437) as an attachment to the DMR. If no municipal wastes were received during a month, submission of the Supplemental Report is not required.

The following information is required by the Supplemental Report:

(1) The dates that municipal wastes were received.

(2) The volume (gallons) of wastes received.

(3) The BOD5 concentration (mg/l) and load (lbs) for the wastes received.

(4) The location(s) where wastes were disposed of within the treatment facility.

(ii) Sampling and analysis of hauled -in municipal wastes must be completed to characterize the organic strength of the wastes, unless composite sampling of influent wastewater is performed at a location downstream of the point of entry for the wastes.

4.

Unanticipated Noncompliance or Potential Pollution Reporting

a.

Immediate Reporting - The permittee shall immediately report any incident causing or threatening pollution in accordance with the requirements of 25 Pa. Code §§ 91.33 and 92a.41(b).

(i) If, because of an accident, other activity or incident a toxic substance or another substance which would endanger users downstream from the discharge, or would otherwise result in pollution or create a danger of pollution or would damage property, the permittee shall immediately notify DEP by telephone of the location and nature of the danger. Oral notification to the Department is required as soon as possible, but no later than 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> after the permittee becomes aware of the incident causing or threatening pollution.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 43 (ii) If reasonably possible to do so, the permittee shall immediately notify downstream users of the waters of the Commonwealth to which the substance was discharged. Such notice shall include the location and nature of the danger.

(iii) The permittee shall immediately take or cause to be taken steps necessary to prevent injury to property and downstream users of the waters from pollution or a danger of pollution and, in addition, within 15 days from the incident, shall remove the residual substances contained thereon or therein from the ground and from the affected waters of this Commonwealth to the extent required by applicable law.

b.

The permittee shall report any noncompliance which may endanger health or the environment in accordance with the requirements of 40 CFR 122.41(l)(6). These requirements include the following obligations:

(i) 24 Hour Reporting - The permittee shall orally report any noncompliance with this permit which may endanger health or the environment within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> from the time the permittee becomes aware of the circumstances. The following shall be included as information which must be reported within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> under this paragraph:

(1) Any unanticipated bypass which exceeds any effluent limitation in the permit; (2) Any upset which exceeds any effluent limitation in the permit; and (3) Violation of the maximum daily discharge limitation for any of the pollutants listed in the permit as being subject to the 24-hour reporting requirement. (40 CFR 122.44(g))

(ii) Written Report - A written submission shall also be provided within 5 days of the time the permittee becomes aware of any noncompliance which may endanger health or the environment. The written submission shall contain a description of the noncompliance and its cause; the period of noncompliance, including exact dates and times, and if the noncompliance has not been corrected, the anticipated time it is expected to continue; and steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance.

(iii) Waiver of Written Report - DEP may waive the written report on a case-by-case basis if the associated oral report has been received within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> from the time the permittee becomes aware of the circumstances which may endanger health or the environment. Unless such a waiver is expressly granted by DEP, the permittee shall submit a written report in accordance with this paragraph. (40 CFR 122.41(l)(6)(iii))

5.

Other Noncompliance The permittee shall report all instances of noncompliance not reported under paragraph C. 4 of this section or specific requirements of compliance schedules, at the time DMRs are submitted, on the Non-Compliance Reporting Form (3800-FM-BCW0440). The reports shall contain the information listed in paragraph C.4.b.(ii) of this section. (40 CFR 122.41(l)(7))

D. Specific Toxic Pollutant Notification Levels (for Manufacturing, Commercial, Mining, and Silvicultural Direct Dischargers) - The permittee shall notify DEP as soon as it knows or has reason to believe the following:

(40 CFR 122.42(a))

1.

That any activity has occurred, or will occur, which would result in the discharge of any toxic pollutant which is not limited in this permit, if that discharge on a routine or frequent basis will exceed the highest of the following "notification levels": (40 CFR 122.42(a)(1))

a.

One hundred micrograms per liter.

b.

Two hundred micrograms per liter for acrolein and acrylonitrile.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 44

c.

Five hundred micrograms per liter for 2,4-dinitrophenol and 2-methyl-4,6-dinitrophenol.

d.

One milligram per liter for antimony.

e.

Five times the maximum concentration value reported for that pollutant in this permit application.

f.

Any other notification level established by DEP.

2.

That any activity has occurred or will occur which would result in any discharge, on a nonroutine or infrequent basis, of a toxic pollutant which is not limited in this permit, if that discharge will exceed the highest of the following "notification levels": (40 CFR 122.42(a)(2))

a.

Five hundred micrograms per liter.

b.

One milligram per liter for antimony.

c.

Ten times the maximum concentration value reported for that pollutant in the permit application.

d.

Any other notification level established by DEP.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 45 I.

MANAGEMENT REQUIREMENTS A. Compliance

1.

The permittee shall comply with all conditions of this permit. If a compliance schedule has been established in this permit, the permittee shall achieve compliance with the terms and conditions of this permit within the time frames specified in this permit. (40 CFR 122.41(a)(1))

2.

The permittee shall submit reports of compliance or noncompliance, or progress reports as applicable, for any interim and final requirements contained in this permit. Such reports shall be submitted no later than 14 days following the applicable schedule date or compliance deadline. (25 Pa. Code § 92a.51(c),

40 CFR 122.47(a)(4))

B. Permit Modification, Termination, or Revocation and Reissuance

1.

This permit may be modified, terminated, or revoked and reissued during its term in accordance with 25 Pa. Code § 92a.72 and 40 CFR 122.41(f ).

2.

The filing of a request by the permittee for a permit modification, revocation and reissuance, or termination, or a notification of planned changes or anticipated noncompliance, does not stay any permit condition. (40 CFR 122.41(f ))

3.

In the absence of DEP action to modify or revoke and reissue this permit, the permittee shall comply with effluent standards or prohibitions established under Section 307(a) of the Clean Water Act for toxic pollutants within the time specified in the regulations that establish those standards or prohibitions. (40 CFR 122.41(a)(1))

C. Duty to Provide Information

1.

The permittee shall furnish to DEP, within a reasonable time, any information which DEP may request to determine whether cause exists for modifying, revoking and reissuing, or terminating this permit, or to determine compliance with this permit. (40 CFR 122.41(h))

2.

The permittee shall furnish to DEP, upon request, copies of records required to be kept by this permit.

(40 CFR 122.41(h))

3.

Other Information - Where the permittee becomes aware that it f ailed to submit any relevant f acts in a permit application, or submitted incorrect information in a permit application or in any report to DEP, it shall promptly submit the correct and complete facts or information. (40 CFR 122.41(l)(8))

D. Proper Operation and Maintenance The permittee shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the permittee to achieve compliance with the terms and conditions of this permit. Proper operation and maintenance includes, but is not limited to, adequate laboratory controls including appropriate quality assurance procedures. This provision also includes the operation of backup or auxiliary facilities or similar systems that are installed by the permittee, only when necessary to achieve compliance with the terms and conditions of this permit. (40 CFR 122.41(e))

E. Duty to Mitigate The permittee shall take all reasonable steps to minimize or prevent any discharge, sludge use or disposal in violation of this permit that has a reasonable likelihood of adversely affecting human health or the environment. (40 CFR 122.41(d))

F. Bypassing PART B

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 46

1.

Bypassing Not Exceeding Permit Limitations - The permittee may allow a bypass to occur which does not cause effluent limitations to be exceeded, but only if it also is for essential maintenance to assure efficient operation. These bypasses are not subject to the provisions in paragraphs two, three and four of this section. (40 CFR 122.41(m)(2))

2.

Other Bypassing - In all other situations, bypassing is prohibited and DEP may take enforcement action against the permittee for bypass unless:

a.

A bypass is unavoidable to prevent loss of lif e, personal injury or "severe property damage." (40 CFR 122.41(m)(4)(i)(A))

b.

There are no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities, retention of untreated wastes, or maintenance during normal periods of equipment downtime. This condition is not satisfied if adequate backup equipment should have been installed in the exercise of reasonable engineering judgment to prevent a bypass which occurred during normal periods of equipment downtime or preventive maintenance. (40 CFR 122.41(m)(4)(i)(B))

c.

The permittee submitted the necessary notice required in F.4.a. and b. below. (40 CFR 122.41(m)

(4)(i)(C))

3.

DEP may approve an anticipated bypass, after considering its adverse effects, if DEP determines that it will meet the conditions listed in F.2. above. (40 CFR 122.41(m)(4)(ii))

4.

Notice

a.

Anticipated Bypass - If the permittee knows in advance of the need for a bypass, it shall submit prior notice, if possible, at least 10 days before the bypass. (40 CFR 122.41(m)(3)(i))

b.

Unanticipated Bypass - The permittee shall submit oral notice of any other unanticipated bypass within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, regardless of whether the bypass may endanger health or the environment or whether the bypass exceeds effluent limitations. The notice shall be in accordance with Part A III.C.4.b.

G. Termination of Permit Coverage (25 Pa. Code § 92a.74 and 40 CFR 122.64)

1.

Notice of Termination (NOT) - If the permittee plans to cease operations or will otherwise no longer require coverage under this permit, the permittee shall submit DEPs NPDES Notice of Termination (NOT) for Permits Issued Under Chapter 92a (3800-BCW-0410), signed in accordance with Part A III.B. 6 of this permit, at least 30 days prior to cessation of operations or the date by which coverage is no longer required.

2.

Where the permittee plans to cease operations, NOTs must be accompanied with an operation closure plan that identifies how tankage and equipment will be decommissioned and how pollutants will be managed, as applicable.

3.

The permittee shall submit the NOT to the DEP regional office with jurisdiction over the county in which the facility is located.

II.

PENALTIES AND LIABILITY A. Violations of Permit Conditions Any person violating Sections 301, 302, 306, 307, 308, 318 or 405 of the Clean Water Act or any permit condition or limitation implementing such sections in a permit issued under Section 402 of the Act is subject to civil, administrative and/or criminal penalties as set forth in 40 CFR 122.41(a)(2).

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 47 Any person or municipality, who violates any provision of this permit; any rule, regulation or order of DEP; or any condition or limitation of any permit issued pursuant to the Clean Streams Law, is subject to criminal and/or civil penalties as set forth in Sections 602, 603 and 605 of the Clean Streams Law.

B. Falsifying Information Any person who does any of the following:

- Falsifies, tampers with, or knowingly renders inaccurate any monitoring device or method required to be maintained under this permit, or

- Knowingly makes any false statement, representation, or certification in any record or other document submitted or required to be maintained under this permit (including monitoring reports or reports of compliance or noncompliance)

Shall, upon conviction, be punished by a fine and/or imprisonment as set forth in 18 Pa.C.S.A § 4904 and 40 CFR 122.41(j)(5) and (k)(2).

C. Liability Nothing in this permit shall be construed to relieve the permittee from civil or criminal penalties for noncompliance pursuant to Section 309 of the Clean Water Act or Sections 602, 603 or 605 of the Clean Streams Law.

Nothing in this permit shall be construed to preclude the institution of any legal action or to relieve the permittee from any responsibilities, liabilities or penalties to which the permittee is or may be subject to under the Clean Water Act and the Clean Streams Law.

D. Need to Halt or Reduce Activity Not a Defense It shall not be a defense for the permittee in an enforcement action that it would have been necessary to halt or reduce the permitted activity in order to maintain compliance with the conditions of this permit. (40 CFR 122.41(c))

III.

OTHER RESPONSIBILITIES A. Right of Entry Pursuant to Sections 5(b) and 305 of Pennsylvania's Clean Streams Law, and Title 25 Pa. Code Chapter 92a and 40 CFR 122.41(i), the permittee shall allow authorized representatives of DEP and EPA, upon the presentation of credentials and other documents as may be required by law:

1.

To enter upon the permittee's premises where a regulated facility or activity is located or conducted, or where records must be kept under the conditions of this permit; (40 CFR 122.41(i)(1))

2.

To have access to and copy, at reasonable times, any records that must be kept under the conditions of this permit; (40 CFR 122.41(i)(2))

3.

To inspect at reasonable times any facilities, equipment (including monitoring and control equipment),

practices or operations regulated or required under this permit; and (40 CFR 122.41(i)(3))

4.

To sample or monitor at reasonable times, for the purposes of assuring permit compliance or as otherwise authorized by the Clean Water Act or the Clean Streams Law, any substances or parameters at any location. (40 CFR 122.41(i)(4))

B. Transfer of Permits

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 48

1.

Transfers by modification. Except as provided in paragraph 2 of this section, a permit may be transferred by the permittee to a new owner or operator only if this permit has been modified or revoked and reissued, or a minor modification made to identify the new permittee and incorporate such other requirements as may be necessary under the Clean Water Act. (40 CFR 122.61(a))

2.

Automatic transfers. As an alternative to transfers under paragraph 1 of this section, any NPDES permit may be automatically transferred to a new permittee if:

a.

The current permittee notifies DEP at least 30 days in advance of the proposed transfer date in paragraph 2.b. of this section; (40 CFR 122.61(b)(1))

b.

The notice includes the appropriate DEP transfer form signed by the existing and new permittees containing a specific date for transfer of permit responsibility, coverage and liability between them; (40 CFR 122.61(b)(2))

c.

DEP does not notify the existing permittee and the proposed new permittee of its intent to modify or revoke and reissue this permit, the transfer is effective on the date specified in the agreement mentioned in paragraph 2.b. of this section; and (40 CFR 122.61(b)(3))

d.

The new permittee is in compliance with existing DEP issued permits, regulations, orders and schedules of compliance, or has demonstrated that any noncompliance with the existing permits has been resolved by an appropriate compliance action or by the terms and conditions of the permit (including compliance schedules set forth in the permit), consistent with 25 Pa. Code § 92a.51 (relating to schedules of compliance) and other appropriate DEP regulations. (25 Pa. Code § 92a.71)

3.

In the event DEP does not approve transfer of this permit, the new owner or operator must submit a new permit application.

C. Property Rights The issuance of this permit does not convey any property rights of any sort, or any exclusive privilege. (40 CFR 122.41(g))

D. Duty to Reapply If the permittee wishes to continue an activity regulated by this permit after the expiration date of this permit, the permittee must apply for a new permit. (40 CFR 122.41(b))

E. Other Laws The issuance of this permit does not authorize any injury to persons or property or invasion of other private rights, or any infringement of state or local law or regulations.

IV.

ANNUAL FEES Permittees shall pay an annual fee in accordance with 25 Pa. Code § 92a.62. Annual fee amounts are specified in the following schedule and are due on each anniversary of the effective date of the most recent new or reissued permit. All f lows identified in the schedule are annual average design f lows. (25 Pa. Code § 92a. 62)

Minor IW Facility without ELG (Effluent Limitation Guideline)

$500 Minor IW Facility with ELG

$1,500 Major IW Facility < 250 MGD (million gallons per day)

$5,000 Major IW Facility 250 MGD

$25,000 IW Stormwater Individual Permit

$1,000 CAAP (Concentrated Aquatic Animal Production Facility)

$0

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 49 As of the effective date of this permit, the facility covered by the permit is classified in the following fee category:

Major IW Facility <250 MGD.

Invoices for annual fees will be mailed to permittees approximately three months prior to the due date. In the event that an invoice is not received, the permittee is nonetheless responsible for payment. Throughout a five year permit term, permittees will pay four annual fees followed by a permit renewal application fee in the last year of permit coverage. Permittees may contact DEP at 717-787-6744 with questions related to annual fees.

The fees identified above are subject to change in accordance with 25 Pa. Code § 92a.62(e).

Payment for annual fees shall be remitted to DEP at the address below by the anniversary date. Checks should be made payable to the Commonwealth of Pennsylvania.

PA Department of Environmental Protection Bureau of Clean Water Re: Chapter 92a Annual Fee P.O. Box 8466 Harrisburg, PA 17105-8466

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 50 I.

OTHER REQUIREMENTS A. The approval herein given is specifically made contingent upon the permittee acquiring all necessary property rights by easement or otherwise, providing for the satisfactory construction, operation, maintenance or replacement of all structures associated with the herein approved discharge in, along, or across private property, with full rights of ingress, egress and regress.

B. Collected screenings, slurries, sludges, and other solids shall be handled, recycled and/or disposed of in compliance with the Solid Waste Management Act (35 P.S. §§ 6018.101 - 6018.1003), 25 Pa. Code Chapters 287, 288, 289, 291, 295, 297, and 299 (relating to requirements for landfilling, impoundments, land application, composting, processing, and storage of residual waste), Chapters 261a, 262a, 263a, and 270a (related to identification of hazardous waste, requirements for generators and transporters, and hazardous waste, requirements for generators and transporters, and hazardous waste permit programs), federal regulation 40 CFR Part 257, The Clean Streams Law, and the Federal Clean Water Act and its amendments.

Screenings collected at intake structures shall be collected and managed and not be returned to the receiving waters.

The permittee is responsible to obtain or assure that contracted agents have all necessary permits and approvals for the handling, storage, transport and disposal of solid waste materials generated as a result of wastewater treatment.

C. The terms and conditions of Water Quality Management (WQM) permits that may have been issued to the permittee relating to discharge requirements are superseded by this NPDES permit unless otherwise stated herein.

D. If the applicable standard or effluent guideline limitation relating to the application for Best Available Technology (BAT) Economically Achievable or to Best Conventional Technology (BCT) is developed by DEP or EPA for this type of industry, and if such standard or limitation is more stringent than the corresponding limitations of this permit (or if it controls pollutants not covered by this permit), DEP may modify or revoke and reissue the permit to conform with that standard or limitation.

E. This discharge shall not cause a change in the stream temperature of more than 2°F during any one hour.

F. There shall be no net addition of pollutants to non-contact cooling water over intake values except for heat and water conditioning additives for which complete information was submitted in the application or is required to be submitted as a condition of this permit.

G. Cooling tower blowdown discharges shall contain no detectable amounts of the 126 Priority Pollutants listed in 40 CFR Part 423, Appendix A, that are contained in chemicals added for cooling tower maintenance, except for Total Chromium and Total Zinc. When requested by DEP, the permittee shall conduct monitoring or submit engineering calculations to demonstrate compliance with 40 CFR 423.13(d)(1).

H. The DEP may identify and require certain discharge specific data to be submitted before the expiration date of this permit. Upon notification by the DEP, the permittee will have 12 months from the date of the notice to provide the required data. These data, along with any other data available to the DEP, will be used in completing the Watershed TMDL/WLA Analysis and in establishing discharge effluent limits. In the event that DEP requires the submission of data pursuant to this condition, the permittee shall have the right to appeal or otherwise contest the requirement.

I.

This permit may be modified, revoked, and reissued to incorporate revised effluent limitations or other water quality standards in accordance with any determination of a Section 316(a) Clean Water Act relative to thermal discharge from this permitted facility.

PART C

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 51 J. The term total residual oxidants, for water with bromides generated through the use of a chemical additive, is defined as the value obtained using any of the chlorine-total residual methods in Table IB in 40 CFR 136.3(a) where the method has the capability of measuring total residual chlorine.

K. The term Maximum Daily Concentration, as it relates to total residual oxidants (TRO) discharge, means the average analysis made over a single period of TRO release, which does not exceed three hours.

L. For Outfall 001 or Outfall 031, total residual oxidants may not be discharged from any unit for more than three hours in any one day, and not more than one unit in any plant may discharge total residual oxidants at any one time.

M. The permittee is required to submit an updated Preparedness, Prevention, and Contingency (PPC) Plan within 60 days after the effective date of the permit, and from time to time if the PPC plan receives major modifications. The PPC Plan shall be submitted to DEPs Regional Office that issued the permit and the transmittal shall reference the permit number and facility name listed on page 1 of the permit.

N. Authorized non-stormwater discharges through Permitted Outfalls:

1.

The following non-stormwater discharges may be authorized through the permitted stormwater outfalls, provided the discharge is in compliance with part (b) of this requirement: discharges from f ire fighting activities, fire hydrant flushings, potable water sources, including waterline flushings, irrigation drainage, lawn watering, routine external building washdown which does not use detergents or other compounds, pavement washwaters where spills or leaks of toxic or hazardous materials have not occurred (unless all spilled material has been removed) and where detergents are not used, air conditioning condensate, springs, uncontaminated groundwater, and foundation or footing drains where f lows are not contaminated with process materials such as solvents.

2.

Except for f lows from f ire fighting activities, sources of non-stormwater listed in part (a) (authorized non-stormwater discharges) that are combined with stormwater discharges must be identified in the PPC Plan. The Plan shall identify and ensure the implementation of appropriate pollution prevention measures for the non-stormwater component(s) of the discharge.

O. The permittee shall comply at all times with the terms and conditions related to discharge of effluent imposed by the US Nuclear Regulatory Commission (NRC) in the facility operating license nos. NPF-39 & NPF-85, and latest revision of Delaware River Basin Commissions Docket No. D -1969-210 CP-15 or current docket.

P. Calendar week is defined as the seven consecutive days from Monday through Sunday. In cases when the week falls in two separate months, the month with the most days in that week shall be the month for reporting.

Q. Permittee shall monitor pH at Outfall 001 a minimum of three days per week, and use flow averaged results from Unit 1 and Unit 2 cooling tower in-line pH monitor device for the remainder of the week for the compliance of pH monitoring of Outfall 001.

R. Total Suspended Solids Monitoring During Periods of Chemical Addition:

1.

General Requirements and Sample Frequency

a.

Total Suspended Solids (TSS) shall be monitored daily during the addition of NALCO 1315 at the cooling towers. Time proportional composite samples shall be collected f rom:

i.

Unit 1 cooling tower blowdown ii.

Unit 2 cooling tower blowdown, and, iii.

The discharge through Outfall 001 or Outfall 031

b.

Time proportional composite samples shall be collected either using a compositor that collects aliquots at evenly spaced intervals or by collecting grab samples every two hours during the period when NALCO 1315 is in use.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 52

c.

The average f low rates shall be collected for each sample location during each sample event.

2.

Calculations

a.

The TSS samples collected shall be designated as:

i.

CT1TSS = TSS at Unit 1 cooling tower blow down (mg/l) ii.

CT2TSS = TSS at Unit 2 cooling tower blow down (mg/l) iii.

DTSS = TSS at discharge through Outfall 001 or Outfall 031 (mg/l)

b.

The f low rates shall be designated as:

i.

CT1Q = Unit 1 cooling tower blowdown f low rate (MGD) ii.

CT2Q = Unit 2 cooling tower blowdown f low rate (MGD) iii.

DQ = discharge flow rate through Outfall 001 or Outfall 031(MGD)

c.

The net TSS shall be calculated as:

NET TSS = (DTSS) - ])CT1TSS

• CT1Q( + )CT2TSS

• CT2Q([

(CT1Q + CT2Q)

3.

Limitations:

The net addition of TSS during the addition of NALCO 1315 shall be limited to:

i.

30 mg/L as a Monthly Average ii 60 mg/L as a Daily Maximum iii 75 mg/L as an Instantaneous Maximum S. Total Suspended Solids Monitoring at Outfall 001 or Outfall 031:

1.

General Requirements and Sample Frequency

a.

The permittee shall monitor for net Total Suspended Solids (TSS) at Outfall 001 twice per month or at Outfall 031 daily all the time. Samples shall be collected from:

i.

Cooling water intake from the Schuylkill River.

ii.

Cooling water from the Perkiomen Creek if this makeup water source is being used during the sampling events.

iii.

The discharge through Outfall 001 or Outfall 031.

b.

24-hour time proportional composite samples shall be collected either using a compositor that collects aliquots at evenly spaced intervals or by collecting grab samples every two hours.

c.

The average f low rates shall be collected for each sample location during each sample event.

2.

Calculations

a.

The TSS samples collected shall be designated as:

i.

PTSS = TSS representative of cooling water from Perkiomen Creek (mg/l) ii.

STSS = TSS representative of cooling water from the Schuylkill River (mg/l) iii.

DTSS = TSS representative of Outfall 001or Outfall 031 discharge (mg/l)

b.

The f low rate sampling locations shall be designated as:

i.

PQ = Flow rate from Perkiomen Creek makeup water (MGD) ii.

SQ = Flow rate from Schuylkill River makeup water (MGD)

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 53 iii.

DQ = Discharge flow rate through outfall 001 or Outfall 031 (MGD)

c.

The net TSS concentration shall be calculated as:

NET TSS =

(DTSS*DQ) - [(PTSS*PQ) + (STSS*SQ)]

= mg/l DQ

d.

The net TSS mass loading shall be calculated as:

NET TSS =

(DTSS*DQ) - ])PTSS

• PQ( + )STSS

• SQ([ = lbs/day

3.

Reporting The permittee shall submit the results of all bimonthly TSS monitoring and net calculations to DEP in an annual report, due within 60 days after the completion of each calendar year, and complete report during the next permit renewal application.

T.

Total Suspended Solids (TSS) Monitoring during wood flour usage:

Permittee shall monitor for TSS at Outfall 001 or Outfall 031 daily by obtaining samples prior to and during the addition of wood flour at the circulating water system. Net addition of TSS shall be calculated by subtracting the initial TSS result f rom the TSS result during wood flour addition. The net addition of TSS during the usage of wood flour shall be limited to the following:

(i) 30 mg/l as a Monthly Average (ii) 60 mg/l as a Daily Maximum (iii) 75 mg/l as an Instantaneous Maximum II.

WHOLE EFFLUENT TOXICITY (WET)

A. General Requirements

1.

The permittee shall conduct Chronic WET tests as specified in this section. The permittee shall collect discharge samples and perform WET tests to generate chronic survival and reproduction data for the cladoceran, Ceriodaphnia dubia and chronic survival and growth data for the fathead minnow, Pimephales promelas.

2.

Samples shall be collected at Outfall 001 in accordance with paragraph E.

3.

The permittee shall perform testing using the following dilution series: 3%, 7%, 30%, 60%, and 100%

effluent, with a control, where 7 is the facility-specific Target In-Stream Waste Concentration (TIWC).

4.

The determination of whether a test endpoint passes or fails shall be made using DEPs WET Analysis Spreadsheet (available at www.dep.pa.gov/wett) by comparing replicate data for the control with replicate data for the TIWC dilution or any dilution greater than the TIWC.

5.

The permittee shall submit only valid WET test results to DEP.

B. Test Frequency and Reporting

1.

WET testing shall be conducted quarterly, beginning within 30 days of the permit effective date. Tests shall be completed within calendar quarters, i.e., one test each during the periods of January 1 - March 31, April 1 - June 30, July 1 - September 30, and October 1 - December 31.

2.

A complete WET test report shall be submitted to the DEP regional office that issued the permit within 30 days of test completion. A complete WET test report submission shall include the information contained in paragraph H, below.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 54

3.

If a test failure is determined for any endpoint during annual monitoring, the permittee shall initiate a re-test for the species with the failure within 45 days of test completion. All endpoints for the species shall be evaluated in the re-test. The results of the re-test shall be submitted to the DEP regional office that issued the permit.

4.

If a passing result is determined for all endpoints in a re-test, the permittee may resume quarterly monitoring.

5.

If there is a failure for one or more endpoints in a re-test, the permittee shall continue quarterly WE T testing for both species. The results of all tests shall be submitted to the DEP regional office that issued the permit. In addition, the permittee shall initiate a Phase I Toxicity Reduction Evaluation (TRE) as specified in paragraph C, below.

6.

The permittee must report the results of each test endpoint that has a WET monitoring requirement in Part A of this permit on the Discharge Monitoring Report (DMR). Test results shall be reported on the DMR in terms of acute or chronic Toxicity Units (TUa or TUc), where TUa is used for acute tests and TUc is used for chronic tests. If DEPs WET Analysis Spreadsheet indicates a passing result for an endpoint, report the value obtained from the expression 1/TIWC, which is equivalent to the permit limit. If the Spreadsheet indicates a failure, report the value obtained from the expression > 1/TIWC. If a dilution higher than the TIWC dilution is used for the comparison with the control, report the value obtained from the expression 1/dilution. For example, an acute test endpoint failure at a TIWC dilution of 50% would be reported as > 2.0 TUa (1/0.5).

7.

The permittee shall attach the WET Analysis Spreadsheet for the latest four consecutive WET tests to the NPDES permit renewal application that is submitted to DEP at least 180 days prior to the permit expiration date.

C. Phase I Toxicity Reduction Evaluation (TRE)

1.

The Phase I TRE trigger is one WET endpoint failure followed by a re-test that confirms the failure for the same species. When the TRE process is triggered, quarterly WET testing shall be initiated for both species until there are four consecutive passing results for all endpoints. The Phase I TRE may include a Toxicity Identification Evaluation (TIE) if the permittee cannot immediately identify the possible causes of the effluent toxicity and the possible sources of the causative agents.

2.

The permittee shall, within one year following the Phase I TRE trigger, submit a Phase I TRE report to the DEP regional office that issued the permit. The Phase I TRE shall be conducted in accordance with EPAs guidance, Toxicity Reduction Evaluation for Municipal Wastewater Treatment Plants (EPA/833B-99/002), Generalized Methodology for Conducting Industrial Toxicity Reduction Evaluations (EPA/600/2-88/070), and other relevant EPA guidance, as applicable. If a TIE is conducted as part of the Phase I TRE, it shall conform to EPAs guidance, Methods for Aquatic Toxicity Identification Evaluations Phase I (EPA/600/6-91/003), Phase II (EPA/600/R-92/080), Phase III (EPA/600/R-92/081) and other relevant EPA guidance. The Phase I TRE report shall be submitted with the fourth quarterly WET test report that is completed following the Phase I TRE trigger. The TRE shall include all activities undertaken to identify the cause(s) and source(s) of toxicity and any control efforts.

3.

If all four quarterly WET tests produce passing results for all endpoints during the Phase I TRE process, performance of a Phase II TRE is not required, and continue with quarterly WET testing in accordance with paragraph B.1.

4.

If the four WET tests produce at least one failing result during the Phase I TRE process, the permittee shall continue quarterly WETT monitoring for both species and initiate a Phase II TRE in accordance with paragraph D. In this case, the Phase I TRE must include a schedule for completion of the Phase II TRE. The schedule must include interim milestones and a final completion date not to exceed two years from the initiation of the Phase II TRE. The permittee shall implement the Phase II TRE in accordance with the schedule unless DEP issues written approval to modify the schedule or cease performance of the Phase II TRE.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 55

5.

Re-tests during the TRE process are required for invalid tests but are optional and at the discretion of the permittee for valid tests. The results of all re-tests must be submitted to the DEP regional office that issued the permit along with the required elements in paragraph H.

D. Phase II Toxicity Reduction Evaluation (TRE)

1.

The Phase II TRE trigger is one WET endpoint failure during performance of the Phase I TRE. A Phase II TRE, if required, shall conform to EPAs guidance, Toxicity Reduction Evaluation for Municipal Wastewater Treatment Plants (EPA/833B-99/002), Generalized Methodology for Conducting Industrial Toxicity Reduction Evaluations (EPA/600/2-88/070), and other relevant EPA guidance, as applicable.

A Phase II TRE evaluates the possible control options to reduce or eliminate the effluent toxicity and the implementation of controls.

2.

Once initiated, the Phase II TRE must continue until the source(s) of toxicity are controlled as evidenced by four consecutive WET test passing results for all endpoints, and a final TRE report must be submitted on or before the date specified in the schedule, unless otherwise approved by DEP in writing.

E. Sample Collection For each acute testing event, a 24-hour f low-proportioned or time weighted composite sample shall be collected. For each chronic testing event, three 24-hour f low-proportioned or time weighted composite samples shall be collected over a seven-day exposure period. The samples must be collected at a frequency of not greater than every two hours and must be f low-proportioned or time weighted. The samples must be collected at the permit compliance sampling location. Samples must be analyzed within 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> f rom the end of the compositing period and must be placed on ice and held at 6°C. Refer to the sample handling and preservation regulations set forth in 40 CFR 136, 25 Pa. Code Chapter 252, The NELAC Institute (TNI)

Standard, and the appropriate EPA methods.

F. Test Conditions and Methods Laboratories must be accredited by the DEP Laboratory Accreditation Program in order to perform and report WET tests for NPDES permit compliance. Laboratories must be either State or NELAP accredited.

1.

Acute tests shall be completed in accordance with EPAs Methods for Measuring the Acute Toxicity of Effluents and Receiving Waters to Freshwater and Marine Organisms (EPA-821-R-02-012, latest edition). Forty eight (48) hour static non-renewal tests shall be used.

2.

Chronic tests shall be completed in accordance with EPAs Short-term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms (EPA-821-R-02-0 13, latest edition). Seven (7) day tests shall be used with renewal every 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

3.

The quality assurance and control (QA/QC) requirements and test acceptability standards specified in EPAs test methods and the requirements set forth in 25 Pa Code Chapter 252 or the TNI Standard must be followed.

4.

If the permittee or its accredited laboratory determines that QA/QC requirements and/or test acceptability standards have not been met, a re-test shall be initiated within 45 days. Original test data must be maintained by the laboratory and be submitted to DEP upon request. The justification for a re-test must be clearly documented and kept on f ile with the sample results.

G. Chemical Analyses Chemical analyses must follow the requirements of the EPA methods and applicable State and/or Federal regulations.

1.

Chemical analysis on effluent samples shall include pH, Conductivity, Total Alkalinity, Total Hardness, Total Residual Chlorine, Total Ammonia (Unionized Ammonia), Dissolved Oxygen and temperature.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 56 Chemical analyses as described in the EPA Methods (above) shall be performed for each sampling event, including each new batch of dilution water and each testing event.

2.

In addition to the chemical analyses required above, those parameters listed in Part A of the NPDES permit for the outfall(s) tested shall be analyzed concurrently with the WET test by using the method(s) specified in the permit.

H. WET Report Elements WET test reports that are submitted to DEP must include the requirements identified in 25 Pa. Code § 252.401(j)(1) - (15) or in the TNI Standard, or equivalent, as well as the following information:

1.

A general test description, including the origin and ag e of test organisms, dates and results of reference toxicant tests, light and temperature regimes, and other documentation that QA and test acceptability criteria as specified in EPAs methods and DEPs QA Summaries have been met.

2.

A description of sample collection procedures and sampling location.

3.

Name(s) of individual(s) collecting and transporting samples, including sample renewals, and the date(s) and time(s) of sample collection.

4.

All chemical and physical data including laboratory quantitation limits and observations made on the species. The hardness shall be reported for each test condition.

5.

Copies of raw data sheets and/or bench sheets with data entries and signatures.

6.

When effluents are dechlorinated, dechlorination procedures must be described and if applicable a thiosulfate control used in addition to the normal dilution water control. If the thiosulfate control results are significantly different from the normal control, as determined using DEPs WET Analysis Spreadsheet, the thiosulfate control shall be used in the spreadsheet for comparison with the TIWC condition. The WET report must specify which control was used to determine whether the test result is pass or fail.

7.

A description of all observations or test conditions that may have affected the test outcome.

8.

Control charts for the species tested regarding age, temperature test range, mortality data and all reference toxicant tests.

9.

A completed WET test summary report (3800-FM-BCW0485).

10. A DEP WET Analysis Spreadsheet printout that provides control and TIWC replicate data and displays the outcome of the test (pass or fail) for each endpoint tested.

WETT reports shall be submitted to the DEP regional office that issued the permit and, for discharges to the Delaware River basin, the Delaware River Basin Commission (DRBC).

III.

CHEMICAL ADDITIVES A. Approved Chemical Additives List

1.

The permittee is authorized to use chemical additives that are published on DEPs Approved Chemical Additives List (Approved List) (see www.dep.pa.gov/chemicaladditives) subject to paragraphs A.2 and A.3, below.

2.

The permittee may not discharge a chemical additive at a concentration that is greater than the water quality-based effluent limitation (WQBEL) for the chemical additive or, if applicable, a technology -based effluent limitation. If effluent limitations are not specified in Part A of this permit for the chemical additive,

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 57 the permittee is responsible for determining the WQBEL and ensuring the WQBEL is not exceeded by restricting usage to an amount that will not cause an excursion above in-stream water quality standards.

3.

If the permittee decides to use a chemical additive that is on DEPs Approved List and the use would either (1) constitute an increase in the usage rate specified in the NPDES permit application or previous notification to DEP or (2) constitute a new use, not identified in the NPDES permit application or otherwise no previous notification occurred, the permittee shall complete and submit the Chemical Additives Notification Form (3800-FM-BCW0487) to the DEP regional office that issued the permit. The permittee may proceed to use the chemical additive as reported on the Form upon receipt by the DEP regional office.

B. New Chemical Additives, Not on Approved Chemical Additives List

1.

In the event the permittee wishes to use a chemical additive that is not listed on DEPs Approved List, the permittee shall submit the New Chemical Additives Request Form (3800-FM-BCW0486) to DEPs Central Office, Bureau of Clean Water (BCW), NPDES Permitting Division, Rachel Carson State Office Building, PO Box 8774, Harrisburg, PA 17105-8774, prior to use. A copy shall be submitted to the DEP regional office that issued the permit. The form must be completed in whole in order for B CW to approve the chemical additive, and a Material Safety Data Sheet (MSDS) that meets the minimum requirement s of 29 CFR 1910.1200(g) must be attached.

2.

Following placement of the chemical additive on the Approved List, the permittee may submit the Chemical Additive Notification Form in accordance with paragraph A.3, above, to notify DEP of the intent to use the approved chemical additive. The permittee may proceed with usage when the new chemical has been identified on DEPs Approved List and following DEPs receipt of the Chemical Additives Notification Form.

3.

The permittee shall restrict usage of chemical additives to the maximum usage rates determined and reported to DEP on Chemical Additives Notification Forms.

C. Chemical Additives Usage Reporting Requirements The Chemical Additives Usage Form (3800-FM-BCW0439) shall be used to report the usage of chemical additives and shall be submitted as an attachment to the Discharge Monitoring Report (DMR) at the time the DMR is submitted.

D. DEP may amend this permit to include WQBELs or otherwise control usage rates of chemical additives if there is evidence that usage is adversely affecting receiving waters, producing Whole Effluent Toxicity test failures, or is causing excursions of in-stream water quality standards.

E.

Chemicals used for cooling tower maintenance shall not include any of the 126 priority pollutants listed in 40 CFR Part 423: Steam Electric Power Generating Point Sources, Appendix A, with the exception of Total Chromium and Total Zinc. As allowed by 40 CFR §423.13(d)(3), compliance with the limitations for the 126 priority pollutants may be determined by engineering calculations which demonstrate that the regulated pollutants are not detectable in the final discharge by the analytical methods in 40 CFR part 136.

IV.

REQUIREMENTS APPLICABLE TO STORMWATER OUTFALLS A. The permittee is authorized to discharge non-polluting stormwater from its site, alone or in combination with other wastewaters, through the following outfalls:

Outfall No.

Area Drained (ft2)

Latitude Longitude Description 002 43,650 40º 13' 20.00" 75º 35' 14.00" Stormwater from area around former sewage treatment plant and service area 003 7,395 40º 13' 20.80" 75º 35' 12.80" Stormwater from area around Unit 1

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 58 004 52,538 40º 13' 21.00" 75º 35' 9.00" Stormwater from fuel storage area 005 416,500 40º 13' 23.00" 75º 35' 6.00" Stormwater from area around Unit 2 006 52,500 40º 13' 24.20" 75º 35' 21.20" Stormwater from maintenance area of metal shop and hardware 007 33,713 40º 13' 25.00" 75º 35' 22.00" Stormwater from area around health physics building, hardware and offices 008 57,350 40º 13' 27.00" 75º 35' 25.00" Stormwater from area around health physics building and electric substation 009 66,650 40º 13' 29.00" 75º 35' 26.00" Stormwater from area around ISFISI building, instrument shop and storage 012 21,700 40º 13' 15.00" 75º 35' 23.00" Stormwater from service roads 013 6,250 40º 13' 23.00" 75º 35' 7.00" Stormwater from service roads and parking lots 014 107,813 40º 13' 26.00" 75º 35' 4.00" Stormwater from service roads and parking lots 015 247,950 40º 13' 28.20" 75º 35' 1.00" Stormwater from service roads and parking lots 016 51,836 40º 13' 33.00" 75º 34' 57.00" Stormwater from service roads and parking lots 017 71,874 40º 13' 33.20" 75º 34' 56.30" Stormwater from service roads and parking lots 018 219,107 40º 13' 35.00" 75º 34' 54.00" Stormwater from yard drains 019 255,697 40º 13' 35.30" 75º 34' 53.10" Stormwater from service roads and parking lots 021 236,150 40º 13' 37.00" 75º 35' 25.00" Stormwater from cooling tower screenwash and acid/chlorine storage area 022 8,140 40º 13' 18.00" 75º 35' 16.00" Stormwater from wastewater treatment plant and service road 024 3,580 40º 13' 17.60" 75º 35' 15.80" Stormwater f rom decommissioned wastewater treatment plant 030 129,625 40º 14' 0.20" 75º 35' 15.10" Stormwater from yard drains Monitoring requirements and effluent limitations for these outfalls are specified in Part A of this permit, if applicable.

B. Stormwater Annual Report.

The permittee shall submit a complete Annual Report to the DEP office that issued the permit by May 1 each year using DEPs Annual Report template, attached to this permit. The Annual Report shall address activities under the permit for the previous calendar year. The permittee shall submit the Annual Report electronically if notified by DEP in writing. If the permittee discharges to a municipal separate storm sewer system (MS4),

a copy of the Annual Repo rt shall be submitted to the operator of the MS4.

C. Best Management Practices (BMPs).

The permittee shall implement and, as necessary, maintain the following BMPs to remain in compliance with this permit.

1.

Pollution Prevention and Exposure Minimization.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 59 The permittee shall minimize the exposure of manufacturing, processing, and material storage areas (including loading and unloading, storage, disposal, cleaning, maintenance, and fueling operations) to rain, snow, snowmelt, and runoff in order to minimize pollutant discharges by either locating industrial materials and activities inside or protecting them with storm resistant coverings wherever feasible. The permittee shall implement and maintain the following measures, at a minimum:

a.

Use grading, berming or curbing to prevent runoff of polluted stormwater and divert run-on away f rom areas that contain polluted stormwater

b.

Locate materials, equipment, and activities so that potential leaks and spills are contained or able to be contained or diverted before discharge to surface waters

c.

Clean up spills and leaks promptly using dry methods (e.g., absorbents) to prevent the discharge of pollutants to surf ace waters

d.

Store leaky vehicles and equipment indoors or, if stored outdoors, use drip pans and absorbents to prevent the release of pollutants to the environment.

e.

Use spill/overflow protection equipment.

f.

Perform all vehicle and/or equipment cleaning operations indoors, under cover, or in bermed areas that prevent runoff and run-on and also that capture any overspray.

g.

Drain fluids from equipment and vehicles that will be decommissioned, and, for any equipment and vehicles that will remain unused for extended periods of time, inspect at least monthly for leaks.

h.

Keep all dumpster lids closed when not in use. For dumpsters and roll off boxes that do not have lids, ensure that discharges have a control (e.g., secondary containment, treatment). This General Permit does not authorize dry weather discharges from dumpsters or roll off boxes.

i.

Minimize contamination of stormwater runoff from fueling areas by implementing the following BMPs where determined to be feasible: cover fueling areas; install oil/water separators or oil and grease traps in fueling area storm drains; use berms to prevent run-on to and runoff from fueling areas; use spill/overflow protection and cleanup equipment; use dry cleanup methods; and/or treat and/or recycle collected stormwater runoff.

j.

Train employees routinely (no less than annually) on pollution prevention practices as contained in the PPC Plan.

2.

Good Housekeeping.

The permittee shall perform good housekeeping measures in order to minimize pollutant discharges including the routine implementation of the following measures, at a minimum:

a.

Implement a routine cleaning and maintenance program for all impervious areas of the facility where particulate matter, dust or debris may accumulate to minimize the discharge of pollutants in stormwater. The cleaning and maintenance program must encompass, as appropriate, areas where material loading and unloading, storage, handling and processing occur.

b.

Store materials in appropriate containers.

c.

Minimize the potential for waste, garbage and floatable debris to be discharged by keeping exposed areas free of such materials, or by intercepting them before they are discharged.

d.

Eliminate floor drain connections to storm sewers.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 60

e.

Use drip pans, drain boards, and drying racks to direct drips back into a fluid holding tank for reuse.

Drain fluids from all equipment and parts prior to disposal. Promptly transfer used fluids to the proper container; do not leave full drip pans or other open containers around the shop. Empty and clean drip pans and containers.

f.

Label and track the recycling of waste material (e.g., used oil, spent solvents, batteries).

g.

Prohibit the practice of hosing down an area where the practice would result in the discharge of pollutants to a municipal or other storm water collection system that conveys pollutants off -site without proper treatment.

3.

Erosion and Sediment Controls.

a.

The permittee shall minimize erosion and pollutant discharges by stabilizing exposed soils and placing f low velocity dissipation devices at discharge locations to minimize channel and stream bank erosion and scour in the immediate vicinity of stormwater outfalls.

b.

The permittee shall conduct all earth disturbance activities and, when applicable, shall maintain all post-construction stormwater management (PCSM) BMPs in accordance with 25 Pa. Code Chapter 102.

c.

The permittee may not utilize polymers or other chemicals to treat stormwater unless written permission is obtained from DEP.

4.

Spill Prevention and Responses.

The permittee shall minimize the potential for leaks, spills and other releases that may be exposed to stormwater and develop a PPC Plan for effective responses to such releases. The permittee shall conduct the following spill prevention and response measures, at a minimum:

a.

Maintain an organized inventory of materials on-site. Plainly label containers (e.g., Used Oil, Spent Solvents, Fertilizers and Pesticides) that could be susceptible to spillage or leakage to encourage proper handling and facilitate rapid response if spills or leaks occur.

b.

Implement procedures for material storage and handling, including the use of secondary containment and barriers between material storage and traffic areas, or a similarly effective means designed to prevent the discharge of pollutants from these areas.

c.

Develop and implement employee and contractor training on the procedures for expeditiously stopping, containing, and cleaning up leaks, spills, and other releases. The permittee shall conduct periodic training, no less than annually, and document the training on the Annual Report specified in paragraph B of this section.

d.

Keep spill kits on-site, located near areas where spills may occur or where a rapid response can be made.

e.

Notify appropriate facility personnel when a leak, spill, or other release occurs.

f.

. To the extent possible, eliminate or reduce the number and amount of hazardous materials and waste by substituting non-hazardous or less hazardous materials of equal f unction, as determined by the permittee.

g.

Clean up leaks, drips, and other spills without using large amounts of water or liquid cleaners. Use absorbents for dry cleanup whenever possible.

When a leak, spill or other release occurs during a 24-hour period that contains a hazardous substance or oil in an amount equal to or in excess of a reportable quantity established under 40 CFR Parts 110, 117 or 302, the permittee shall, in addition to the notification requirements contained in Part A III.C.4 of

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 61 this permit, notify the National Response Center (NRC) at (800) 424-8802 in accordance with the requirements of 40 CFR Parts 110, 117, and 302 as soon as the permittee becomes aware of the discharge.

5.

Sector-and Site-Specific BMPs.

a.

The permittee shall implement the BMPs in the applicable Appendix to the NPDES PAG-03 General Permit for Discharges of Stormwater Associated with Industrial Activities that is currently in effect.

D. Routine Inspections.

1.

The permittee shall visually inspect the following areas and BMPs on a semiannual basis (calendar periods), at a minimum:

a.

Areas where industrial materials or activities are exposed to stormwater.

b.

Areas identified in the PPC Plan as potential pollutant sources.

c.

Areas where spills or leaks have occurred in the past three years.

d.

Stormwater outfalls and locations where authorized non-stormwater discharges may commingle.

e.

Physical BMPs used to comply with this permit.

At least once each calendar year, the routine inspection must be conducted during a period when a stormwater discharge is occurring.

2.

The permittee shall evaluate and document the following conditions, at a minimum, in the Annual Report required by paragraph B of this section through required inspections:

k. Raw materials, products or wastes that may have or could come into contact with stormwater.

l.

Leaks or spills from equipment, drums, tanks and other containers.

m. Off-site tracking of industrial or waste materials, or sediment where vehicles enter or exit the site.

n. Tracking or blowing of raw, final or waste materials from areas of no exposure to exposed areas.

o. Control measures or BMPs needing replacement, maintenance or repair.

p. The presence of authorized non-stormwater discharges that were not identified in the permit application and non-stormwater discharges not authorized by this permit.

E. Preparedness, Prevention and Contingency (PPC) Plan

1.

The permittee shall develop and implement a PPC Plan in accordance with 25 Pa. Code § 91.34 following the guidance contained in DEPs Guidelines for the Development and Implementation of Environmental Emergency Response Plans (DEP ID 400-2200-001), its NPDES-specific addendum and the minimum requirements below.

a.

The PPC Plan must identify all potential sources of pollutants that may reasonably be expected to affect the quality of stormwater discharges from the facility.

b.

The PPC Plan must describe preventative measures and BMPs that will be implemented to reduce or eliminate pollutants from coming into contact with stormwater resulting from routine site activities and spills.

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c.

The PPC Plan must address actions that will be taken in response to on-site spills or other pollution incidents.

d.

The PPC Plan must identify areas which, due to topography or other f actors, have a high potential for soil erosion, and identify measures to limit erosion. Where necessary, erosion and sediment control measures must be developed and implemented in accordance with 25 Pa. Code Chapter 102 and DEPs Erosion and Sediment Pollution Control Manual (DEP ID 363-2134-008).

e.

The PPC Plan must address security measures to prevent accidental or intentional entry which could result in an unintentional discharge of pollutants.

f.

The PPC Plan must include a plan for training employees and contractors on pollution prevention, BMPs, and emergency response measures. This training must be conducted in accordance with paragraph C.4.c of this section.

g.

If the facility is subject to SARA Title III, Section 313, the PPC Plan must identify releases of Water Priority Chemicals within the previous three years. Water Priority Chemicals are those identified in EPAs Guidance for the Determination of Appropriate Methods for the Detection of Section 313 Water Priority Chemicals (EPA 833-B-94-001, April 1994). The Plan must include an evaluation of all activities that may result in the stormwater discharge of Water Priority Chemicals.

h.

Spill Prevention Control and Countermeasure (SPCC) plans may be used to meet the requirement s of this section if the minimum requirements are addressed.

2.

The permittee shall review and if necessary update the PPC Plan on an annual basis, at a minimum, and when one or more of the following occur:

a.

Applicable DEP or federal regulations are revised, or this permit is revised.

b.

The PPC Plan fails in an emergency.

c.

The facilitys design, industrial process, operation, maintenance, or other circumstances change in a manner that materially increases the potential for fires, explosions or releases of toxic or hazardous constituents; or which changes the response necessary in an emergency.

d.

The list of emergency coordinators or equipment changes.

e.

When notified in writing by DEP.

The permittee shall maintain all PPC Plan updates on-site, make the updates available to DEP upon request, and document the updates in Annual Reports.

F. Stormwater Monitoring Requirements.

1.

The permittee shall conduct monitoring of its stormwater discharges at the representative outfalls identified in Part A of this permit, if applicable. The permittee shall document stormwater sampling event information and no exposure conditions for each calendar year on the Annual Report required by paragraph B of this section.

2.

The permittee shall, upon written notice from DEP, install inlets, pipes, and/or other structures or devices that are considered necessary in order to conduct representative stormwater sampling, in accordance with a schedule provided by DEP.

3.

The permittee shall collect all samples from discharges resulting from a storm event that is greater than 0.1 inch in magnitude and that occurs at least 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> from the previously measurable (greater than 0.1 inch rainfall) storm event. The 72-hour storm interval is waived when the preceding storm did not yield a measurable discharge, or if the permittee is able to document that a less than 72-hour interval is representative for local storm events during the sample period.

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4.

The permittee shall collect all grab samples within the first 30 minutes of a discharge, unless the permittee determines that this is not possible, in which case grab samples must be collected as soon as possible after the first 30 minutes of a discharge. The permittee shall explain why samples could not be collected within the first 30 minutes of any discharge on the Annual Report required by paragraph B of this section.

5.

The permittee shall collect stormwater samples at times when commingling with non-stormwater discharges is not occurring or at locations prior to the commingling of non-stormwater discharges, unless Part A of this permit recognizes commingling of stormwater and non-stormwater discharges.

6.

In the event that stormwater discharge concentrations for a parameter exceeds the benchmark values identified below at the same outfall for two or more consecutive monitoring periods, the permittee shall develop a corrective action plan to reduce the concentrations of the parameters in stormwater discharges. The permittee shall submit the corrective action plan to DEP within 90 days of the end of the monitoring period triggering the need for the plan, and shall implement the plan immediately upon submission or at a later time if authorized by DEP in writing. The permittee shall, in developing the plan, evaluate alternatives to reduce stormwater concentrations and select one or more BMPs or control measures for implementation, unless the permittee can demonstrate in the plan that (1) the exceedances are solely attributable to natural background sources; (2) no further pollutant reductions are technologically available and economically practicable and achievable in light of best industry practice; or (3) further pollutant reductions are not necessary to prevent stormwater discharges from causing or contributing to an exceedance of applicable water quality standards.

Parameter Benchmark Value (mg/L)

Total Suspended Solids 100 Oil and Grease 30 V.

PCB POLLUTANT MINIMIZATION PLAN AND MONITORING A. On April 7, 2007, the U.S. Environmental Protection Agency (EPA) Region 3 adopted a Total Maximum Daily Load (TMDL) for Polychlorinated Biphenyls (PCBs) in the Schuylkill River. Implementation of the TMDL requires that permitted facilities that discharge directly to the Schuylkill River conduct sampling for PCBs and, based upon review of the results, develop and implement a PCB Pollutant Minimization Plan (PMP).

The Schuylkill Rivers PCB TMDL was established using a water quality criterion of 0.044 ng/l for PCBs.

Based on the sampling results submitted by the facility, this facility is required to develop and implement a PCB PMP.

B. The permittee shall collect one 24-hour composite sample annually during a wet weather f low and one 24-hour composite sample annually during a dry weather f low. The samples shall be collected from Outfall 001.

C. All sample analyses shall be performed using EPA Method 1668A, Revision A: Chlorinated Biphenyl Congeners in Water, Soil, Sediment, and Tissue by HRGC/HRMS (EPA-821-R-00-002, December 1999) as supplemented or amended, and results for all 209 PCB congeners shall be reported. Project-specific sample collection protocols, analytical procedures, and reporting requirements of the Delaware River Basin Commission (DRBC) shall be followed (see www.state.nj.us/drbc/quality/toxics/pcb-monitoring.html).

Monitoring information, sample data, and reports associated with PCB monitoring shall be submitted to DEP and DRBC in the form of two compact discs in the format referenced at www.nj.gov/drbc/library/documents/PCB-EDD011309.pdf.

D. In accordance with the EPA TMDL for PCBs for the Schuylkill River, the permittee shall submit a PMP for PCBs within 12 months from the effective date of the permit. The permittee shall comply with the requirements of Section 4.30.9 of DRBCs Water Quality Regulations. Additional information regarding PMP development may be found at www.nj.gov/drbc/programs/quality/pmp.html. In addition, the permittee shall:

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1. Commence implementation of its PMP as submitted within 60 days of receipt of a PMP completeness determination issued by DEP.

3.

Submit an Annual Report beginning one year from the date of commencement of the PMP to DEP and DRBC consistent with the guidance at www.nj.gov/drbc/programs/quality/pmp.html. The PMP, PMP Annual Report, and PCB data shall be submitted to DEP and DRBC at the following addresses:

PA Department of Environmental Protection Southeast Regional Office Clean Water Program 2 East Main Street Norristown, PA 19401 Delaware River Basin Commission Modeling, Monitoring & Assessment Branch P.O. Box 7360 West Trenton, NJ 08628 VI.

COOLING WATER INTAKE STRUCTURE(S)

A. Nothing in this permit authorizes a take of endangered or threatened species under the Endangered Species Act.

B. Technology and operational measures employed at the cooling water intake structures must be operated in a way that minimizes impingement mortality and entrainment to the fullest extent possible.

C. The location, design, construction or capacity of the intake structure(s) may not be altered without prior approval of DEP.

D. The permittee shall retain data and other records for any information developed pursuant to Section 316(b )

of the Clean Water Act for a minimum of ten years.

E. DEP has made a determination that the facility meets Best Technology Available (BTA) to minimize adverse impacts from impingement as defined by 40 CFR § 125.94(c)(1) by operating a closed -cycle recirculating system. The reductions in entrainment already provided by the closed cycle recirculating cooling system along with the wedgewire screens in the Perkiomen Creek with design through-screen velocity of less than 1.5 fps satisfies both impingement mortality and entrainment BTA. The permittee shall:

1.

Continue to operate a closed cycle recirculating system as defined at 40 CFR §125.92(c).

2.

Monitor the actual intake f lows at a minimum frequency of daily, including measurements of cooling water withdrawals, make-up water and blow down volume or alternatively monitor cycles of concentration at a minimum frequency of daily. An annual report shall be submitted to the DEP Southeast Regional Office (SERO) including the monitoring data required in I.E.2 and summarizing the facilitys cycles of concentration and average cooling water reduction when compared to a total calculated once through cooling water demand.

3.

In addition to the closed-cycle recirculated cooling system, the facility will continue to operate the wedgewire screens with a design through-screen velocity of less than 0.5 fps at the Perkiomen Creek intake.

F. If DEP determines the methods to meet impingement and entrainment BTA requirements are not sufficient, the permittee will employ additional controls to reduce adverse impacts from impingement and entrainment as outlined by DEP.

G. The permittee will submit an annual certification statement and report as a part of the annual report submitted in accordance with I.E.2. The annual certification shall describe any substantial modifications to the operation of any unit at the facility that impacts cooling water withdrawals or operation of the cooling water intake structures. If no significant changes, the certification will show that no such changes have occurred.

3800-PM-BCW0011 Rev. 2/2020 Permit Permit No. PA0051926 65 H. If the permittee wishes to submit a request for a reduction in permit application requirements as outlined in 40 CFR §125.95(c), it must be submitted to DEP at least two years and six months before this permit expires.