DRAFT MS4 Requirements Table Anticipated Obligations for Subsequent NPDES Permit Term MS4 Name NPDES ID Individual Permit Impaired Downstream Waters or Requirement(s) Other Cause(s) of Required? Applicable TMDL Name Impairment Adams County ABBOTTSTOWN BORO No Beaver Creek Appendix E-Siltation (5) Chesapeake Bay Nutrients/Sediment Appendix D-Nutrients, Siltation (4a) BERWICK TWP No Chesapeake Bay Nutrients/Sediment Appendix D-Nutrients, Siltation (4a) Beaver Creek Appendix E-Siltation (5) BUTLER TWP No Chesapeake Bay Nutrients/Sediment Appendix D-Nutrients, Siltation (4a) CONEWAGO TWP No South Branch Conewago Creek Appendix E-Siltation (5) Plum Creek Appendix E-Siltation (5) Chesapeake Bay Nutrients/Sediment Appendix D-Nutrients, Siltation (4a) CUMBERLAND TWP No Willoughby Run Appendix E-Organic Enrichment/Low D.O., Siltation (5) Rock Creek Appendix E-Nutrients (5) Chesapeake Bay Nutrients/Sediment Appendix D-Nutrients, Siltation (4a) GETTYSBURG BORO No Stevens Run Appendix E-Nutrients, Siltation (5) Unknown Toxicity (5) Rock Creek Appendix E-Nutrients (5) Chesapeake Bay Nutrients/Sediment Appendix D-Nutrients, Siltation (4a) HAMILTON TWP No Beaver Creek Appendix E-Siltation (5) Chesapeake Bay Nutrients/Sediment Appendix D-Nutrients, Siltation (4a) MCSHERRYSTOWN BORO No Chesapeake Bay Nutrients/Sediment Appendix D-Nutrients, Siltation (4a) Plum Creek Appendix E-Siltation (5) South Branch Conewago Creek Appendix E-Siltation (5) MOUNT PLEASANT TWP No Chesapeake Bay Nutrients/Sediment Appendix D-Nutrients, Siltation (4a) NEW OXFORD BORO No Chesapeake Bay Nutrients/Sediment Appendix D-Nutrients, Siltation (4a) OXFORD TWP No Chesapeake Bay Nutrients/Sediment Appendix D-Nutrients, Siltation (4a) South Branch Conewago Creek Appendix E-Siltation (5) Page 1 of 135 Revised 6/26/2015 MS4 Name NPDES ID Individual Permit Impaired Downstream Waters or Requirement(s) Other Cause(s) of Required? Applicable TMDL Name Impairment Adams County STRABAN TWP No White Run Appendix E-Nutrients, Siltation (5) Rock Creek Appendix E-Nutrients (5) Chesapeake Bay Nutrients/Sediment Appendix D-Nutrients, Siltation (4a) UNION TWP No Chesapeake Bay Nutrients/Sediment Appendix D-Nutrients, Siltation (4a) South Branch Conewago Creek Appendix E-Siltation (5) Page 2 of 135 Revised 6/26/2015 MS4 Name NPDES ID Individual Permit Impaired Downstream Waters or Requirement(s) Other Cause(s) of Required? Applicable TMDL Name Impairment Allegheny County ALEPPO TWP PAG136348 No Ohio River Appendix C-PCB (4a), Appendix B-Pathogens (5) Dioxins (5) ASPINWALL BORO PAG136259 No Allegheny River Appendix C-Chlordane, PCB (4a), Appendix B-Pathogens (5) AVALON BORO PAG136151 No Spruce Run Appendix E-Organic Enrichment/Low D.O., Siltation (5) Ohio River Appendix C-PCB (4a), Appendix B-Pathogens (5) Dioxins (5) BALDWIN BORO PAG136128 Yes Sawmill Run Nutrients TMDL Plan-DO/BOD, Nutrients, Organic Enrichment/Low D.O., Siltation (4a) Streets Run Appendix A-Metals (4a), Appendix E-Siltation (5) Sawmill Run AMD and Sediment Appendix A-Metals, pH (4a) Peters Creek Appendix A-Metals (4a), Appendix B-Pathogens (5) Cause Unknown (5) Ohio River Appendix C-PCB (4a), Appendix B-Pathogens (5) Dioxins (5) Monongahela River Appendix C-PCB (4a), Appendix B-Pathogens (5) Lick Run Appendix A-Metals (4a), Appendix B-Pathogens (5) Cause Unknown (5) Glass Run Appendix A-Metals (4a), Appendix E-Siltation (5) Sawmill Run AMD and Sediment TMDL Plan-Siltation (4a) BELL ACRES BORO PAI136124 No Ohio River Appendix C-PCB (4a), Appendix B-Pathogens (5) Dioxins (5) BELLEVUE BORO PAG136216 No Spruce Run Appendix E-Organic Enrichment/Low D.O., Siltation (5) Ohio River Appendix C-PCB (4a), Appendix B-Pathogens (5) Dioxins (5) BEN AVON BORO PAG136292 No Ohio River Appendix C-PCB (4a), Appendix B-Pathogens (5) Dioxins (5) Spruce Run Appendix E-Organic Enrichment/Low D.O., Siltation (5) BEN AVON HEIGHTS BORO PAG136237 No Ohio River Appendix C-PCB (4a), Appendix B-Pathogens (5) Dioxins (5) Spruce Run Appendix E-Organic Enrichment/Low D.O., Siltation (5) Page 3 of 135 Revised 6/26/2015 MS4 Name NPDES ID Individual Permit Impaired Downstream Waters or Requirement(s) Other Cause(s) of Required? Applicable TMDL Name Impairment Allegheny County BETHEL PARK BORO PAG136147 Yes Peters Creek Appendix A-Metals (4a), Appendix B-Pathogens (5), Appendix E-Nutrients (5) Cause Unknown (5) Catfish Run Appendix A-Metals (4a), Appendix B-Pathogens (5) Cause Unknown (5) Chartiers Creek Appendix A-Metals (4a), Appendix C-PCB (4a), Appendix E-Suspended Solids TDS (5) (4a), Appendix E-Siltation (5) Graesers Run Appendix E-Nutrients, Siltation (5) Turbidity (5) Lick Run Appendix A-Metals (4a), Appendix B-Pathogens (5) Cause Unknown (5) Painters Run Appendix A-Metals (4a), Appendix C-Chlordane, PCB (4a), Appendix E- TDS (5) Suspended Solids (4a), Appendix E-Siltation (5) Piney Fork Appendix A-Metals (4a), Appendix B-Pathogens (5), Appendix E-Nutrients (5) Cause Unknown (5) Sawmill Run AMD and Sediment Appendix A-Metals, pH (4a) TMDL Plan-Siltation (4a) Sawmill Run Nutrients TMDL Plan-DO/BOD, Nutrients, Organic Enrichment/Low D.O., Siltation (4a) Sleepy Hollow Run Appendix A-Metals (4a), Appendix B-Pathogens (5) Cause Unknown (5) McLaughlin Run Appendix C-Chlordane, PCB (4a), Appendix E-Nutrients, Siltation (5) Turbidity (5) BLAWNOX BORO PAG136123 No Allegheny River Appendix C-Chlordane, PCB (4a) BRACKENRIDGE BORO No No known water quality impairments at this time. Must comply with all other permit requirements. BRADDOCK BORO No Monongahela River Appendix C-PCB (4a), Appendix B-Pathogens (5) BRADDOCK HILLS BORO PAG136257 No Monongahela River Appendix C-PCB (4a), Appendix B-Pathogens (5) Turtle Creek Appendix E-Siltation (5) BRADFORD WOODS BORO PAG136263 No Brush Creek Appendix E-Siltation (5) Cause Unknown (5) Pine Creek Appendix B-Pathogens (5), Appendix E-Nutrients, Siltation (5) BRENTWOOD BORO PAG136271 Yes Ohio River Appendix C-PCB (4a), Appendix B-Pathogens (5) Dioxins (5) Sawmill Run Nutrients TMDL Plan-DO/BOD, Nutrients, Organic Enrichment/Low D.O., Siltation (4a) Sawmill Run AMD and Sediment Appendix A-Metals, pH (4a) Streets Run Appendix A-Metals (4a), Appendix E-Siltation (5) Monongahela River Appendix C-PCB (4a), Appendix B-Pathogens (5) Sawmill Run AMD and Sediment TMDL Plan-Siltation (4a) BRIDGEVILLE BORO PAG136203 No Chartiers Creek Appendix A-Metals (4a), Appendix C-PCB (4a), Appendix E-Suspended Solids TDS, Turbidity (5) (4a), Appendix E-Organic Enrichment/Low D.O., Siltation (5) McLaughlin Run Appendix C-Chlordane, PCB (4a), Appendix E-Siltation (5) Turbidity (5) Painters Run Appendix A-Metals (4a), Appendix C-Chlordane, PCB (4a), Appendix E- TDS (5) Suspended Solids (4a), Appendix E-Siltation (5) Page 4 of 135 Revised 6/26/2015 MS4 Name NPDES ID Individual Permit Impaired Downstream Waters or Requirement(s) Other Cause(s) of Required? Applicable TMDL Name Impairment Allegheny County CARNEGIE BORO PAG136188 No Chartiers Creek Appendix A-Metals (4a), Appendix C-PCB (4a), Appendix E-Suspended Solids TDS (5) (4a), Appendix E-Siltation (5) Ohio River Appendix C-PCB (4a), Appendix B-Pathogens (5) Dioxins (5) CASTLE SHANNON BORO PAG136117 Yes Sawmill Run Nutrients TMDL Plan-DO/BOD, Nutrients, Organic Enrichment/Low D.O., Siltation (4a) Sawmill Run AMD and Sediment TMDL Plan-Siltation (4a) Ohio River Appendix C-PCB (4a), Appendix B-Pathogens (5) Dioxins (5) Sawmill Run AMD and Sediment Appendix A-Metals, pH (4a) CHALFANT BORO PAG136190 No Turtle Creek Appendix E-Siltation (5) Monongahela River Appendix C-PCB (4a), Appendix B-Pathogens (5) CHESWICK BORO PAG136322 No Allegheny River Appendix C-Chlordane, PCB (4a) CHURCHILL BORO PAG136225 No Turtle Creek Appendix E-Siltation (5) Thompson Run Appendix A-Metals, pH (4a) Sawmill Run Appendix E-Siltation (5) Duffs Run Appendix E-Siltation (5) Chalfant Run Appendix E-Siltation (5) Monongahela River Appendix C-PCB (4a), Appendix B-Pathogens (5) CLAIRTON CITY PAG136287 No Peters Creek Appendix A-Metals (4a), Appendix B-Pathogens (5) Cause Unknown (5) Monongahela River Appendix C-PCB (4a) COLLIER TWP PAG136204 No Painters Run Appendix A-Metals (4a), Appendix C-Chlordane, PCB (4a), Appendix E- TDS (5) Suspended Solids (4a), Appendix E-Siltation (5) Ohio River Appendix C-PCB (4a), Appendix B-Pathogens (5) Dioxins (5) McLaughlin Run Appendix C-Chlordane, PCB (4a), Appendix E-Siltation (5) Turbidity (5) Thoms Run Appendix A-Metals (4a), Appendix E-Suspended Solids (4a), Appendix E- TDS, Turbidity (5) Nutrients, Organic Enrichment/Low D.O., Siltation (5) Chartiers Creek Appendix A-Metals (4a), Appendix C-PCB (4a), Appendix E-Suspended Solids TDS, Turbidity (5) (4a), Appendix E-Siltation (5) Robinson Run Appendix A-Metals (4a), Appendix E-Suspended Solids (4a), Appendix E- TDS (5) Nutrients, Siltation (5) CORAOPOLIS BORO PAG136162 No Ohio River Appendix C-PCB (4a), Appendix B-Pathogens (5) Dioxins (5) McCabe Run Appendix E-Organic Enrichment/Low D.O., Siltation (5) Montour Run Appendix A-Metals, pH (4a), Appendix E-Nutrients, Organic Enrichment/Low Nonpriority Organics, Un- D.O., Siltation (5) ionized Ammonia (5) Page 5 of 135 Revised 6/26/2015 MS4 Name NPDES ID Individual Permit Impaired Downstream Waters or Requirement(s) Other Cause(s) of Required? Applicable TMDL Name Impairment Allegheny County CRAFTON BORO PAG136220 Yes Sawmill Run AMD and Sediment Appendix A-Metals, pH (4a) Chartiers Creek Appendix A-Metals (4a), Appendix C-PCB (4a), Appendix E-Suspended Solids TDS (5) (4a), Appendix E-Siltation (5) Ohio River Appendix C-PCB (4a), Appendix B-Pathogens (5) Dioxins (5) Sawmill Run AMD and