Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

Lhoist North America of IP-Prattville Mill Attainment Autauga Unclassifiable Autauga Shelby (p) Alabama - Montevallo Plant Big Escambia Attainment Escambia Unclassifiable Escambia Creek Plant Plant Barry and Attainment Mobile Unclassifiable Mobile Akzo Nobel Ascend Attainment Morgan Unclassifiable Morgan Sanders Lead Attainment Pike Unclassifiable Pike Continental Attainment Russell Unclassifiable Russell Carbon Alabama Power - Ernest C. Gaston Attainment Shelby (partial) Unclassifiable Shelby (partial) Alabama Plant

Alabama Power - William Crawford Attainment Walker Unclassifiable Walker Gorgas Plant

Page 1 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide Alabama State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas. PowerSouth Energy Cooperative - Attainment Washington Unclassifiable Washington Charles R. Lowman Power Plant Rest of State Unclassifiable/ Attainment Rest of State except Shelby Attainment County Unclassifiable/ Alaska Unclassifiable Entire State Entire State Attainment

No Recommend- No Recommend- Unclassifiable/ American Samoa None Entire Territory ation ation Attainment

Page 2 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

All of Navajo County, including all lands of the White Mountain Apache Tribe APS Cholla Power Unclassifiable/ Gila (p) Unclassifiable Navajo (located in Navajo, Hayden, AZ Plant Attainment Pinal (p) Apache, and Gila counties), excluding lands of the Navajo Nation and Hopi Tribe

Arizona All of Apache County excluding lands of the TEP Springerville Unclassifiable/ Unclassifiable Apache Navajo Nation & Miami, AZ Gila (p) Generating Station Attainment and the White Mountain Apache Tribe

Page 3 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) Arizona 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

AEPCO Apache Unclassifiable/ Unclassifiable Cochise Cochise Generating Station Attainment

Unclassifiable/ Unclassifiable Rest of State Rest of State Attainment Flint Creek Power Unclassifiable/ Unclassifiable/ Independence Benton Benton Independence Unclassifiable Plant Attainment Attainment County, AR Plum Point Energy Unclassifiable/ Unclassifiable/ Jefferson County, Unclassifiable/ Arkansas Mississippi Mississippi Jefferson Station Attainment Attainment AR Attainment Unclassifiable/ Unclassifiable Rest of State Rest of State Attainment

San Francisco Bay Area Air Basin - Sonoma (p), Napa, Shell Refinery, Solano (p), Contra Unclassifiable/ Tesoro Refinery, Attainment Costa, Alameda, Same as State Attainment California and Rhodia Inc. Santa Clara, San Mateo, San Francisco, and Marin

Unclassifiable/ Attainment Rest of State Rest of State Attainment

Page 4 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas. Craig Generating Unclassifiable/ Unclassifiable/ Colorado Springs, Moffat (p) Moffat (p) El Paso (p) Unclassifiable Station Attainment Attainment CO

Hayden Unclassifiable/ Unclassifiable/ Eastern Morgan Routt (p) Routt (p) Morgan (p) Unclassifiable Generating Station Attainment Attainment County, CO

Unclassifiable/ Unclassifiable/ Comanche Station Pueblo(p) Pueblo(p) Attainment Attainment

Cherokee Unclassifiable/ Unclassifiable/ Adams (p) Adams (p) Generating Station Attainment Attainment Colorado

Adams (p), Arapahoe, Boulder, Broomfield, Clear Unclassifiable/ Attainment Same as State Creek, Denver (p), Attainment Douglas, Jefferson (p), Gilpin

Unclassifiable/ Unclassifiable/ Rest of State Rest of State Attainment Attainment Commonwealth of Unclassifiable/Atta the Northern None Unclassifiable Entire Territory Entire Territory inment Marianas Islands Bridgeport Harbor Unclassifiable/ Attainment Fairfield Fairfield Station Attainment Connecticut

Page 5 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas. Connecticut Unclassifiable/ Attainment Rest of State Rest of State Attainment Unclassifiable/ Delaware Attainment Entire State Entire State Attainment District of Unclassifiable/ Attainment Entire District Entire District Columbia Attainment Duke Energy - Attainment or Hillsborough Crystal River Citrus (p) May be violating Citrus (p) Hillsborough (p) Unclassifiable County, FL Power Plant NGS and St. Johns Attainment or Unclassifiable/ Nassau County, Duval Duval Nassau (p) River Power Park Unclassifiable Attainment FL

Crist Electric Attainment or Unclassifiable/ Escambia Escambia Generating Station Unclassifiable Attainment Attainment or Unclassifiable/ PCS White Springs Hamilton Hamilton Unclassifiable Attainment Hillsborough (p) May be violating Hillsborough (p) Florida Mosaic Fertilizer - Attainment or Polk (p) May be violating Polk (p) New Wales, TECO Unclassifiable Big Bend Station Polk (p) Unclassifiable Polk (p)

Attainment or Unclassifiable/ WestRock CP, LLC Nassau (p) Nassau (p) Unclassifiable Attainment Stanton Energy Attainment or Unclassifiable/ Orange Orange Center Unclassifiable Attainment

Page 6 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Florida Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

Seminole Attainment or Unclassifiable/ Putnam Putnam Generating Station Unclassifiable Attainment Attainment or Unclassifiable/ Rest of State Rest of State Unclassifiable Attainment Butts Crawford International Jasper International Unclassifiable/ Unclassifiable/ Unclassifiable/ Paper - Rome Chatham Chatham Juliette, GA Jones Floyd Paper - Savannah. Attainment Attainment Attainment (Formerly Lamar Temple Inland) Monroe Upson Georgia Power Unclassifiable/ Bartow Unclassifiable Bartow Plant Bowen Attainment Georgia-Pacific Georgia Savannah River Unclassifiable/ Unclassifiable/ Mill and Georgia Effingham Effingham Attainment Attainment Power Plant McIntosh Georgia Power Unclassifiable/ Unclassifiable/ Plant Wansley and Heard Heard Attainment Attainment Plant Yates Rest of State Unclassifiable/ Unclassifiable/ Rest of State except Floyd Attainment Attainment County

Page 7 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

A circle of radius 2 Cabris (EGU) km around the Nonattainment Piti-Cabras May be violating Piti (EGU) two emission Guam sources Unclassifiable/ Rest of Territory Attainment

Rest of State Unclassifiable/ Unclassifiable/ AES Cogeneratio None Unclassifiable Entire State except Honolulu Hawaii County, HI Hawaii Honolulu Attainment Attainment n Plant County

Hawaiian Electric (HECO) Kahe Honolulu Generating Station Hawaii

Hawaiian Electric (HECO) Waiau Honolulu Generating Station

Kalaeloa Cogeneration Honolulu Plant

Page 8 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas. Ada, Canyon, Attainment Bannock, and Idaho Caribou Unclassifiable/ Unclassifiable Rest of State Entire State Attainment US Steel Archer Daniels Cook (p) Corporation - Attainment Madison (p) Unclassifiable Madison (p) Lemont, IL Alton Township, IL Madison (p) Nonattainment Midland Macon Will (p) Granite City Company Rest of State Tate & Lyle Unclassifiable/ Peoria (p) Putnam/Bureau Bureau Unclassifiable/ Attainment Rest of State except Macon Pekin, IL Ingredients Macon Attainment Tazewell (p) Counties, IL Putnam Attainment County Americas LLC Unclassifiable/ Illinois Massac County, IL Massac Attainment Williamson Williamson Nonattainment County, IL Unclassifiable/ Jasper County, IL Jasper Attainment Wood River Unclassifiable/ Madison (p) Township, IL Attainment Isolatek (Mineral Unclassifiable/ Arcelormittal Unclassifiable Huntington May be violating Huntington (p) Indianapolis, IN Marion (p) Gibson County, In Gibson Porter Products) Attainment Burns Harbor LLC

Page 9

Indiana Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas. ALCOA - Allowance Management Warrick Power Warrick (p) Morgan Jefferson County, Unclassifiable/ Attainment May be violating Warrick (p) Morgan (p) Jefferson (p) Plant County, IN IN Attainment ALCOA - Warrick Smelting Operations ArcelorMittal Calumet Township Coke Energy & Unclassifiable/ Southwest Daviess (p) Unclassifiable/ Attainment Lake LaPorte County, IN LaPorte U.S. Steel - Gray North Township in Attainment Indiana, IN Pike (p) Attainment Works Lake Indiana Duke Energy Unclassifiable/ Unclassifiable/ Attainment Floyd Floyd Terre haute, IN Vigo (p) Posey County, IN Posey (p) Gallagher Station Attainment Attainment

Northern Indiana Public Service Unclassifiable/ Unclassifiable/ Attainment Jasper Jasper Spencer County, IN Spencer (p) Company R.M. Attainment Attainment Schahfer Station A.B. Brown Power Unclassifiable/ Attainment Posey Posey Plant Attainment Hoosier Energy Unclassifiable/ Attainment Sullivan Sullivan Merom Station Attainment Duke Energy Unclassifiable/ Attainment Vermillion Vermillion Cayuga Station Attainment

Page 10 Indiana Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas. Unclassifiable/ Rest of State Attainment Rest of State Attainment except Porter ADM Corn Processing - Cedar Unclassifiable/ Des Moines Unclassifiable/ Rapids Linn Unclassifiable Linn Muscatine, IA Muscatine (p) Des Moines Attainment County, IA Attainment IPL - Prairie Creek Station MidAmerican Unclassifiable/ Unclassifiable/ Unclassifiable/ Energy – Louisa Louisa Louisa Wapello County, IA Wapello Iowa Attainment Attainment Attainment Generating Station MidAmerican Energy – Walter Unclassifiable/ Woodbury County, Pottawattamie Unclassifiable Pottawattamie Woodbury Unclassifiable Scott Jr. Energy Attainment IA Center Unclassifiable/ Rest of State Attainment Unclassifiable/ Unclassifiable/ Unclassifiable Rest of State Rest of State Linn County, KS Linn Attainment Attainment Shawnee County, Kansas Shawnee Unclassifiable KS Wyandotte Wyandotte Unclassifiable County, KS

Page 11 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas. Campbell- Duke Energy East Century Unclassifiable/ Clermont Bend Generating Attainment Boone Boone Campbell (p) Ohio County, KY Ohio Unclassifiable Aluminum Henderson Attainment Counties, KY- Station Sebree LLC OH

Robert A. Reid Station/Henders on Municipal Kentucky Utilities Power and Light Unclassifiable/ Jefferson Company Ghent Attainment Carroll Carroll Jefferson (p) Pulaski County, KY Pulaski Unclassifiable (HMP&L) Station Webster Attainment County, KY Station 2/ Green Station Landfill - Big Rivers Electric Corporation

Owensboro Robert D. Green Municipal Utilities Unclassifiable/ Station - Big Elmer Smith Attainment Davies Davies Webster Attainment Rivers Electric Station and Corporation Century Aluminum

Century Aluminum Unclassifiable/ Attainment Hancock Hancock Hawesville Facility Attainment

Kentucky

Page 12 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas. ALCOA - Warrick Kentucky Power Plant (IN) ALCOA - Warrick Attainment Henderson Unclassifiable Henderson (p) Smelting Operations (IN) East Kentucky Power Unclassifiable/ Attainment Mason Mason Cooperative Attainment Spurlock Station Tennessee Valley Authority Unclassifiable/ Attainment McCraken McCraken Shawnee Fossil Attainment Plant Tennessee Valley Unclassifiable/ Authority Paradise Attainment Muhlenberg Muhlenberg Attainment Fossil Plant

Louisville Gas & Electric – Kentucky Unclassifiable/ Utilities Trimble Attainment Trimble Trimble Attainment County Generating Station

Page 13 Kentucky

Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

Rest of State Unclassifiable/ except Henderson Attainment Rest of State Attainment and Webster Counties

Oxbow Calcining Cabot Corporation Evangeline Parish St. Bernard Unclassifiable/ LLC - Baton East Baton Unclassifiable Evangeline Parish May be violating St Bernard Parish De Soto Parish, LA De Soto Parish (Manufacturing) (p) Parish, LA Attainment Rouge Calcined Rouge Parish Coke Plant Rain CII Carbon Orion Engineered Calcasieu Parish, St. Charles Unclassifiable St. Mary Parish Unclassifiable St. Mary Parish Calcasieu Parish Unclassifiable LLC - Norco Coke Carbons LA Parish Plant Louisiana Rain CII Carbon Generating LLC – Pointe Coupee Pointe Coupee Unclassifiable Unclassifiable LLC - Gramercy St. James Parish Big Cajun II Power Parish Parish Coke Plant Plant Louisiana Cleco Power LLC, Sid Richardson Unclassifiable/ West Baton Brame Energy Unclassifiable Rapides Parish Rapides Parish Carbon Co. - Attainment Rouge Parish Center Addis Plant

Page 14 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) Louisiana of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

Rest of State except East Baton Unclassifiable/ Rouge, St. Charles, Attainment St. James, and West Baton Rouge Parishes

William F Unclassifiable/ Maine Unclassifiable Entire State Entire State Wyman Station Attainment

Morgantown Unclassifiable/ Unclassifiable/ Verso Luke Paper Attainment Charles Charles Baltimore City, MD Baltimore City Allegany Generating Station Attainment Attainment Company

Anne Arundel Chalk Point Unclassifiable/ County and Anne Arundel (p) Maryland Attainment Prince George's Prince George's Nonattainment Generating Station Attainment Baltimore County, Baltimore (p) MD Rest of State Unclassifiable/ Unclassifiable Rest of State except Allegany Attainment County Unclassifiable/ Massachusetts Unclassifiable Entire State Entire State Attainment Lafarge Cement Unclassifiable/ Unclassifiable/ Attainment Alpena Alpena Detroit, MI Wayne (p) Bay County, MI Bay Plant Attainment Attainment

Michigan Page 15 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas. Escanaba Paper Unclassifiable/ Eaton Unclassifiable/ Attainment Delta Delta Lansing, MI Company Attainment Ingham Attainment All other Unclassifiable/ Marquette County, Unclassifiable/ Unclassifiable Rest of State Marquette Michigan undesignated areas Attainment MI Attainment Monroe County, Unclassifiable/ Monroe MI Attainment Unclassifiable/ Ottawa County, Mi Ottawa Attainment St. Clair, MI St. Clair (p) Nonattainment

USG - Red Wing Unclassifiable Goodhue May be violating Goodhue (Mineral Products)

Minnesota Power Unclassifiable/ Taconite Harbor Attainment Cook Cook Attainment Energy facility Minnesota Power Unclassifiable/ Boswell Energy Attainment Itasca Itasca Attainment Minnesota Center Otter Tail Power Unclassifiable/ Attainment Otter Tail Otter Tail Hoot Lake Plant Attainment

Xcel Energy- Unclassifiable/ Sherburne County Attainment Sherbourne Sherbourne Attainment Generating Station

Page 16 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013 Minnesota Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas. Attainment or Unclassifiable/ Rest of State Rest of State Unclassifiable Attainment Red Hills Unclassifiable/ Unclassifiable/ Unclassifiable/ Choctaw Choctaw Lamar County, MS Lamar Generating Facility Attainment Attainment Attainment Mississippi Unclassifiable/ Unclassifiable/ Rest of State Rest of State Attainment Attainment City Utilities of Doe Run Buick Jefferson Franklin-St. Charles Frankin (p) Springfield - John Attainment Greene Unclassifiable Greene Jefferson (p) Unclassifiable Resouce Iron County, MO Counties, MO St. Charles (p) Twitty Recycling Noranda Montrose Unclassifiable/ Jackson County, Jackson County, Attainment Henry Henry Jackson (p) Jackson (p) Unclassifiable Aluminum Inc. - New Madrid Generating Station Attainment MO MO New Madrid

AECI New Madrid Ameren Meramec A portion of St. Unclassifiable/ A portion of St. Unclassifiable/ Attainment Scott County, MO Scott Power Plant - New Madrid Energy Center Louis County Attainment Louis County Attainment Marston

Empire District Unclassifiable/ Electric Company Attainment Jasper Jasper Attainment Missouri Asbury Plant

Empire District Unclassifiable/ Electric Company Attainment Barton Barton Attainment Asbury Plant

Page 17 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Missouri Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

Thomas Hill Unclassifiable/ Attainment Randolph Randolph Energy Center Attainment

Rest of State Unclassifiable/ except Iron and Attainment New Madrid Counties

Rosebud County, Rosebud County and the portion of and the portion of the Northern Colstrip Power the Northern Unclassifiable/ Attainment Cheyenne Billings, MT Yellowstone (p) Plant Cheyenne Attainment Montana Reservation Reservation located located in Big in Big Horn County. Horn County. Unclassifiable/ Attainment Rest of State Rest of State Attainment Navajo Nation portion of Navajo Generating Coconino County, Attainment Area near NGS Unclassifiable Station (NGS) Arizona located within 50 km of NGS Navajo Nation

Page 18 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas. Navajo Nation Four Corners Unclassifiable/ Included in Rest of Power Plant Attainment Area near FCPP Attainment Navajo Nation (FCPP)

No Recommend- Rest of Navajo Unclassifiable/ Rest of Navajo ation Nation Attainment Nation

Whelan Energy Unspecified area Lancaster County, OPPD - North Attainment Unclassifiable Adams Lancaster Unclassifiable Douglas Center around source NE Omaha Power

Rest of State Unclassifiable/ Unclassifiable/ Nebraska Unclassifiable Rest of State except Douglas Lincoln County, NE Lincoln Attainment Attainment County Unclassifiable/ Otoe County, NE Otoe Attainment

North Valmy Unclassifiable/ Nevada Unclassifiable Entire State Entire State Generating Station Attainment

Schiller Station Hillsborough (p) Rockingham (p) Unclassifiable/ Rockingham (p) Central New and Newington Attainment Merrimack (p) and Strafford Attainment and Strafford Hampshire, NH New Hampshire Station Rockingham (p)

Unclassifiable/ Unclassifiable/ Rest of State Rest of State Attainment Attainment

Page 19 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas. Unclassifiable/ New Jersey Attainment Entire State Entire State Attainment San Juan Unclassifiable/ Unclassifiable San Juan San Juan Generating Station Attainment New Mexico Unclassifiable/ Unclassifiable Rest of State Rest of State Attainment Cayuga Generating Tompkins, Lafarge North Unclassifiable/ Erie and Unclassifiable/ Attainment Albany Albany Erie-Niagara, NY Station Seneca, and America - Ravena Attainment Niagara Attainment (Thompkins Cayuga Co.)

Consolidated Edison – 59th Street Station, 74th Street New York, Station, and East Unclassifiable/ Queens, Bronx, River Generating Attainment New York Alcoa St. Lawrence Attainment Kings, and Station; Astoria Richmond Generating Station; and Ravenswood New York Generating Station

Page 20 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest

* ForNew brevity, York this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

Roseton Unclassifiable/ Attainment Orange Orange Generating Station Attainment

Recycled Energy Attainment Monroe Unclassifiable Monroe Development

Northport Power Unclassifiable/ Attainment Sulfolk Sulfolk Station Attainment Rest of State except St. Unclassifiable/ Lawrence, Attainment Rest of State Attainment Tompkins, Seneca, and Cayuga Counties

Duke Energ Mayo Roxboro Plant - Electric Brunswick County, Attainment Person (p) Unclassifiable Person (p) Brunswick Unclassifiable Duke Energy Person Generating Plant NC Progress, LLC

North Carolina Page 21 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

Asheville Steam Duke Energy Unclassifiable/Atta Electric Plant - Belews Creek Attainment Stokes Stokes Buncombe inment Duke Energy Generating Station Progress, Inc.

North Carolina Duke Energy Canton Mill - Unclassifiable/ Marshal Steam Attainment Catawba Catawba Blue Ridge Paper Haywood Attainment Station Products Duke Allen Steam Unclassifiable/ Attainment Gaston Gaston Station Attainment Unclassifiable/ PCS Phosphate Attainment Beaufort Beaufort Attainment

Rest of State except Unclassifiable/ Attainment Buncombe, Attainment Haywood, and Person Counties

Page 22 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

Mercer County except for the Antelope Valley portion already Station and Great Unclassifiable/ designated and Central Mercer Unclassifiable/ Amerada Hess - Attainment Mercer Mercer (p) Williams Plains Synfuels Attainment the portion of Fort County, ND Attainment Tioga Gas Plant Plant Berthold Indian Rervation in Mercer County

North Dakota McLean RM Heskett Morton and Unclassifiable/ Morton and McLean Unclassifiable/ Attainment County/Eastern Station Burleigh Attainment Burleigh Mercer (p) Attainment Mercer County, ND

Milton R Young Unclassifiable/ Attainment Oliver Oliver Station Attainment

Rest of State Unclassifiable/ Attainment Rest of State except Williams Attainment County Campbell- Clermont Clermont County, Unclassifiable/ Charter Steel Attainment Cuyahoga May be violating Cuyahoga (p) Clermont (p) Clermont (p) Counties, KY- OH Attainment OH

Page 23

Ohio Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

Dayton Power and Light J. M. Stuart Unclassifiable/ Unclassifiable/ Lake County, Gallia (Stuart) and Adams Adams Lake Gallia County, OH Unclassifiable Attainment Attainment OH Miegs (p) Dayton Power and Light Killen

American Electric Unclassifiable/ Unclassifiable/ Muskingum Morgan (p), Power Conesville Coshocton Coshocton Attainment Attainment River, OH Washington (p) Power Plant

Dynegy Miami Unclassifiable/ Unclassifiable/ Steubenville, Hamilton Hamilton Jefferson (p) Fort Station Attainment Attainment OH-WV

First Energy Unclassifiable/ Unclassifiable/ Jefferson Jefferson (p) Sammis Attainment Attainment

NRG Power Ohio Unclassifiable/ Unclassifiable/ Midwest LP Avon Lorain Lorain Attainment Attainment Lake Power Plant

Page 24 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Ohio Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

FirstEnergy Generation Bay Unclassifiable/ Unclassifiable/ Lucas Lucas Shore facility and Attainment Attainment BP-Husky Refining

Unclassifiable/ Unclassifiable/ Graymont Dolime Ottawa Ottawa Attainment Attainment

Martin Marietta Unclassifiable/ Unclassifiable/ Magnesia Sandusky Sandusky Attainment Attainment Specialties

Unclassifiable/ Unclassifiable/ Seneca Seneca Attainment Attainment

Unclassifiable/ Unclassifiable/ Rest of State Rest of State Attainment Attainment

Page 25 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

Continental Unclassifiable/ Choctaw County, Unclassifiable/ Oxbow Calcining- Oklahoma Attainment Kay Kay Choctaw Garfield Carbon Attainment OK Attainment Kremlin

AES Shady Point, GRDA - Chouteau Unclassifiable/ LLC Cogeneration Attainment LeFlore LeFlore Coal Fired Mayes Attainment Plant Complex

AEP/PSO Unclassifiable/ Unclassifiable/ Northeastern Attainment Rogers Rogers Noble County, OK Noble Attainment Attainment Power Station

Unclassifiable/ Unclassifiable Tulsa Tulsa Attainment

Rest of State Unclassifiable/ except Garfield, Attainment Rest of State Attainment and Mayes Counties

Page 26 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

Unclassifiable/attain Unclassifiable/ PGE Boardman Morrow ment Attainment Oregon

Unclassifiable/ Unclasifiable Rest of State Rest of State Attainment

No recommendation Magnesita Genon Energy - for portion outside Remainder of Allegheny (p) Unclassifiable Allegheny, PA Allegheny (p) Refractories/ York Cheswick existing County York nonattainment area

Cambria Cogen- Ebensburg Ebensburg Power PH Glatfelter InterPower Unclassifiable Cambria Unclassifiable Cambria Beaver, PA Beaver (p) York Co/Spring Grove Ahlcon/Colver Power

Panther Creek Armstrong (p) PPl Brunner Unclassifiable Carbon Unclassifiable Carbon Indiana, PA York Power Indiana Island NRG Rema - Unclassifiable Clearfield Unclassifiable Clearfield Warren, PA Warren (p) Shawville

Page 27

Pennsylvania Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

Kimberly Clark, Covanta Delaware Valley, Exelon Generating Delaware and Unclassifiable/ Delaware and Unclassifiable Company – Philadelphia Attainment Philadelphia Eddystone, and Philadelphia Energy Solutions NRG Power Midwest-New Unclassifiable Lawrence Unclassifiable Lawrence Castle Pennsylvania Lafarge Corporation - Unclassifiable Lehigh Unclassifiable Lehigh Whitehall Montour Steam Unclassifiable/ Unclassifiable Montour Montour Electric Station Attainment

Page 28 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Pennsylvania Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

Essroc Nazareth Cement Genon Rema- Portland Generating Station Hercules Cement Unclassifiable Northampton Unclassifiable Northampton Keystone Portland Cement Northampton Generating Company

Gilberton Power Northeastern Power Schuylkill Energy - Unclassifiable Schuylkill Unclassifiable Schuylkill St. Nicholas Cogen Wheelabrator Frackville

Rest of State Unclassifiable/ Unclassifiable Rest of State except York Attainment County

Page 29 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

Somewhat Portions of Cataño, different portions PREPA San Juan Toa Baja, San Juan, of Cataño, Toa and Palo Seco Nonattainment May be violating Guaynabo, and Baja, San Juan, facilities Bayamon Guaynabo, and Bayamon

Remaining portions of Cataño, Toa Baja, San Juan, Unclassifiable Guaynabo, and Bayamon; Dorado; Toa Alta; Carolina Puerto Rico (p) (municipalities) PREPA Aguirre Guayama (p) and Nonattainment May be violating Salinas (p) facility Salinas (p)

Guayama, Santa Isabel, Coama, Unclassifiable Aibonito, and Cayey; remaining portion of Salinas

Page 30 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Puerto Rico Round 1 Nonattainment (municipalities) Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas. PREPA Costa Sur Unclassifiable/ Guayanilla and Unclassifiable/ Guayamilla and facility Attainment Peñuelas Attainment Peñuelas Unclassifiable/ Unclassifiable/ Rest of Territory Rest of Territory Attainment Attainment Unclassifiable/ Rhode Island Unclassifiable Entire State Entire State Attainment Unclassifiable/ Century Aluminum Attainment Berkeley Attainment IP-Eastover Mill Unclassifiable/ and SCE&G- Attainment Richland Attainment Wateree Station South Carolina Resolute and Duke Unclassifiable/ Energy Allen Attainment York Attainment Steam Station Unclassifiable/ Attainment Rest of State Rest of State Attainment Unclassifiable/ Unclassifiable/ South Dakota Attainment Entire State Rest of State Grant County, SD Grant Attainment Attainment TVA – Johnsonville Unclassifiable/ Unclassifiable/ Sullivan County, Sumner County, Humphreys Sullivan (p) Sumner Unclassifiable Fossil Plant Attainment Attainment TN TN

Tennessee

Page 31 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

Allen Fossil Plant Unclassifiable/ Unclassifiable/ and Cargill Corn Shelby Tennessee Attainment Attainment Milling Company Cumberland Fossil Unclassifiable/ Unclassifiable/ Steward Plant Attainment Attainment Unclassifiable/ Unclassifiable/ Rest of State Rest of State Attainment Attainment

City Public Unclassifiable/ Unclassifiable/ Atascosa County, Unclassifiable/ Oklaunion Station Wilbarger Wilbarger Atascosa Service - Bexar Attainment Attainment TX Attainment Calaveras Plant

Rest of State except Bexar, Texas recommended a designation of Harrison, Howard, Southwestern attainment for 11 remaining counties Unclassifiable/ Hutchinson, Fort Bend County, Unclassifiable/ Electric Power with monitoring data and Fort Bend Harrison Attainment Jefferson, TX Attainment Co. - AEP Pirkey unclassifiable/attainment for remaining Navarro, Orange, Power Plant counties without monitoring data Robertson, and Titus (p)

Page 32

Texas Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

Sid Richardson Freesone and Freeston (p) Carbon Co. - Big Anderson Nonattainment Howard Anderson (p) Spring Carbon Counties, TX Black

Orion Engineered Unclassifiable/Atta Carbons LLC - Goliad County, TX Goliad Hutchinson inment Borger Carbon Black Plant

SID Richardson Unclassifiable/ Carbon LTD - Lamb County, TX Lamb Hutchinson Attainment Borger Carbon Texas Black Plant

Oxbow Calcining Limestone County, Unclassifiable/ Limestone LLC - Oxbow Jefferson TX Attainment Calcining

McLennan County, Unclassifiable/ TRNLWS LLC - McLennan Navarro TX Attainment Streetman Plant

Page 33 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations Texas Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

Orion Engineered Carbons LLC - Milam County, TX Milam Unclassifiable Orange Echo Carbon Black Plant

Oak Grove MGMT Company Potter County, TX Potter Unclassifiable LLC - Oak Grove Robertson Steam Electric Station Southwestern Robertson County, Unclassifiable/ Electric Power Robertson Titus (p) TX Attainment Co. - Welsh Power Plant Rusk and Panola Rusk (p) and Nonattainment Counties, TX Panola (p) Titus County, TX Titus (p) Nonattainment Hunter Power Plant and Unclassifiable/ Attainment Emery Emery Huntington Power Attainment Plant Utah Intermountain Unclassifiable/ Attainment Millard Millard Power Plant Attainment Unclassifiable/ Attainment Rest of State Rest of State Attainment

Page 34 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas. Unclassifiable/ Unclassifiable/ Vermont Entire State Entire State Attainment Attainment

Chesterfield County, the City of Richmond, Henrico County, Charles City Chesterfield Attainment/Unclassif Unclassifiable/ Roanoke Cement County, the City of Same as State Botetourt Power Station iable Attainment Company Petersburg, the City of Hopewell, and the City of Colonial Heights

Chesterfield County, the City of Richmond, Henrico Westrock's County, Charles City Covington Mill Covington City Yorktown Power Attainment/Unclassif Unclassifiable/ County, the City of Same as State (Meadwestvaco & Allegheny Station iable Attainment Petersburg, the City Packaging County of Hopewell, and Resource Group) the City of Colonial Heights

Virginia

Page 35 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas. Virginia Chesterfield County, the City of Richmond, Henrico County, Charles City Lhoist North Clover Power Attainment/Unclassif Unclassifiable/ County, the City of Same as State America - Giles Station iable Attainment Petersburg, the City Kimballton Plant of Hopewell, and the City of Colonial Heights

Jewell Coke Attainment/Unclassif Buchanan Unclassifiable Buchanan Company iable

Rest of State except Botetourt, Unclassifiable/ Unclassifiable Rest of State Allegheny, Attainment Covington City, and Giles Counties

Page 36 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

The islands of St. Attainment Thomas, St. John, Virgin Islands and Water Island

The Island of St. Unclassifiable/ Unclassifiable Entire Territory Croix Attainment Alcoa Primary Lewis and Lewis and Metals Chelan and TransAlta Attainment Thurston Unclassifiable Thurston Wenatchee Douglas

Works Washington Rest of State Alcoa Primary Attainment/Unclassif Unclassifiable/ except Chelan, Rest of State Metals Intalco Whatcom iable Attainment Douglas, and Works Whatcom

Chemours and Verso Luke Paper Company - DuPont Unclassifiable/ Steubenville, Company Wood Unclassifiable Wood Brooke (p) Mineral Washington Attainment OH-WV (Maryland Works Source)

Appalachian Unclassifiable/ Power Co. – Unclassifiable Putnam Putnam Marshall, WV Marshall (p) Attainment John E. Amos Plant

Page 37

West Virginia Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

Allegheny Energy - Unclassifiable/ Unclassifiable Pleasants Pleasants Pleasants Power Attainment

Mountaineer Unclassifiable Mason (p) Unclassifiable Mason (p)

West Virginia Unclassifiable/ Mountaineer Unclassifiable Mason (p) Mason (p) Attainment Dominion Energy Unclassifiable/ Mount Storm Unclassifiable Grant Grant Attainment Power Station

FirstEnergy Unclassifiable/ Harrison Power Unclassifiable Harrison Harrison Attainment Plant

Fort Martin Power Unclassifiable/ Unclassifiable/ Monongalia Monongalia Plant Attainment Attainment

Attainment or Rest of State Attainment/ Unclassifiable/ Rest of State except Mineral Unclassifiable or Attainment County Unclassifiable

Page 38 Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

Wisconsin Public Expera Specialty Service Unclassifiable/ Columbia County, Unclassifiable/Atta Attainment Marathon Marathon Rhinelander, WI Oneida (p) Columbia Solutions, LLC - Outagamie Corporation – Attainment WI inment Kaukauna Weston Plant

WPL Edgewater Unclassifiable/ Attainment Sheboygan Sheboygan Generating Station Attainment Wisconsin

USG Interiors - Attainment Walworth May be violating Walworth Walworth

Rest of State Unclassifiable/ Attainment except Outagamie Attainment County

Dry Fork Station, WYGEN I, WYGEN Unclassifiable/ Sinclair Wyoming II, WYGEN III, Attainment Campbell Campbell Carbon Attainment - Sinclair Refinery Wyodak, and Neil Simpson II

Page 39

Wyoming Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

Burlington Naughton Power Unclassifiable/ Attainment Lincoln Lincoln Resources - Lost Fremont Plant Attainment Cabin Gas Plant

Solvay Chemicals Laramie River Unclassifiable/ Attainment Platte Platte - Solvay Green Sweetwater (p) Station Attainment River

Wyoming TATA Chemicals - Jim Bridger Power Unclassifiable/ Attainment Sweetwater (p) Sweetwater (p) Green River Sweetwater (p) Plant Attainment Works Rest of State except Carbon, Unclassifiable/ Fremont, Tronox Alkali - Unclassifiable Rest of State Sweetwater (p) Attainment Sweetwater (p), Granger and Converse Counties Tronox Alkali - Sweetwater (p) Westvaco PacifiCorp - Jim Sweetwater (p) Bridger

Page 40 Wyoming Current Round of Area Designations Previous Rounds of Area Designations Future Area Designations

Round 1 Nonattainment Round 2 Area Designations - Completed June & Round 4 Designations Intended Round 3 Area Designations - 120-day Notification to Governors August 2017 Designations - Completed July November 2016 (Monitored Data) 2013

Sulfur Dioxide State EPA Intended Sulfur Dioxide State Counties Counties Emission Source Recommended EPA Intended County or Other Emission State Recommended Area Name (p) = partial Area Name (p) partial = Designation County(ies) of Priniciple County or Other Designation Area* (p) = Source of Designation county county Interest Area partial county Interest * For brevity, this table does not indicate in every case how geographic areas of the same designation type are intended to be separated or grouped into distinct designated areas.

PacifiCorp - Dave Converse Johnston

Page 41