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Appendix G – NPDES DischargersInsignificant Municipal FacilitiesSECTORINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT 26MD0022951MD0023043MD0023060FACILITY NAMERISING SUN WWTPGREENSBORO WWTPROCK HALL WWTPFUNKSTOWN WWTPCHESAPEAKE CITY SOUTH WWTPCHESAPEAKE CITY NORTH WWTPRIDGELY WWTPMILLINGTON WWTPCECILTON WWTPTRAPPE WWTPSUDLERSVILLE WWTPBETTERTON WWTPGALENA WWTPPRESTON WWTPVIENNA WWTPMYERSVILLE WWTPNEW MARKET WWTPJEFFERSON WWTPPORT DEPOSIT WWTPPOINT OF ROCKS WWTPUNION BRIDGE WWTPOXFORD WWTPMANCHESTER WWTPNEW WINDSOR WWTPCRESTVIEW ESTATES WWTPRICHLYN MANOR WWTPFOUNTAINDALE WWTPPINTO UTILITIESGAITHER MANOR APARTMENTS WWTPSPRINGVIEW MOBILE HOME PARKLEWISTOWN SCHOOL WWTPHUNTER HILL APARTMENTS WWTPGLEN MEADOWS RETIREMENT COMMUNITYSWAN HARBOR DELL MOBILE HOME PARKCONCORD TRAILER gateAggregateAggregate1 of 39

Appendix G – NPDES DischargersInsignificant Municipal FacilitiesSECTORINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT 89MD0024627MD0024635MD0024694FACILITY NAMECECO UTILITIES WWTPRAWLINGS WWTPMOUNT SAINT MARY'S UNIVERSITYSUMMERHILL MOBILE HOME PARK WWTPNORTH HARFORD HIGH SCHOOL WWTPWOODLAWN MOBILE HOME ESTATES WWTPQUEENSTOWN WWTPPICCOWAXEN MIDDLE SCHOOL WWTPBOHEMIA MANOR HIGH SCHOOL WWTPNORTH CAROLINE HIGH SCHOOL WWTPWAYSONS MOBILE COURT WWTPI-70 REST STOP WWTPDAN-DEE MOTEL & COUNTRY INNSOUTHERN SENIOR HIGH SCHOOLELK NECK STATE PARKGREENBRIER STATE PARKEASTERN PRE-RELEASE UNITWOODSTOCK JOB TRAINING CENTER WWTP & WTPSOUTHERN MARYLAND PRE-RELEASE UNITVICTOR CULLEN CENTER WWTPCHELTENHAM BOY'S VILLAGE WWTP & WTPPOINT LOOKOUT STATE PARK WWTPNEW GERMANY STATE PARKHARBOUR VIEW WWTPMARDELA HIGH SCHOOL WWTPSMITHSBURG WWTPMARYLAND MANOR WWTPCHESAPEAKE COLLEGEMIDDLETOWN WWTPPHEASANT RIDGE MOBILE HOME PARKHANCOCK WASTEWATER LAGOONSOUTH CARROLL HIGH SCHOOL WWTPHIGHLAND VIEW ACADEMY WWTPMARQUIPWARDUNITED, INC.PATUXENT MOBILE gregateAggregateAggregate2 of 39

Appendix G – NPDES DischargersInsignificant Municipal FacilitiesSECTORINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT 28MD0053279MD0053325MD0053511FACILITY NAMEOLDTOWN WWTPTRIUMPH INDUSTRIAL PARK WWTPMEARS GREAT OAK LANDING MARINASPRING MEADOWS WWTPHOMESTEAD BENJAMIN'S MOBILE ESTATES WWTPGREENRIDGE YOUTH CAMPWHITE ROCK WWTPCHURCH HILL WWTPBEL ALTON WWTPBOONES MOBILE ESTATES WWTPBROADFORDING BIBLE CHURCH WWTPWILLARDS WWTPROCKY GAP STATE PARK WTPCHOPTICON HIGH SCHOOLNORTHERN HIGH SCHOOL - CALVERTSHARPTOWN WWTPEWELL WWTPTYLERTON WWTPFAIRMOUNT WWTPMORNING CHEERCOLLEGE OF SOUTHERN MARYLANDKENNEDYVILLE WWTPEDGEMEADE WWTPCHERRY HILL WWTPFAHRNEY-KEEDY MEMORIAL HOMEHOLIDAY MOBILE ESTATES WWTPCAMP SHADOWBROOKTHUNDERBIRD MOTEL WWTPMAPLE HILL WWTPBROOK LANE PSYCHIACTRIC CENTER WWTPRELAX INN WWTPMT. CARMEL WOODS WWTPFOREST GREEN COURT MOBILE HOME PARKCLEAR SPRING WWTPLYONS CREEK MOBILE HOME regateAggregateAggregate3 of 39

Appendix G – NPDES DischargersInsignificant Municipal FacilitiesSECTORINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT 57MD0065927MD0066001MD0066745FACILITY NAMEDONALDSON BROWN CENTER WWTPTWIN CITIES WWTPOLD SOUTH MOUNTAIN INNCOLONEL RICHARDSON MIDDLE & HIGH SCHOOL WWTPCLIFTON ON THE POTOMAC WWTPFLINTSTONE WWTPKEMPTOWN SCHOOL WWTPSHINE INN WWTPNEW LIFE FOURSQUARE CHURCH AND SCHOOLCEDAR MOBILE HOME PARK WWTPWINTERS' APARTMENTS WWTPSHAMROCK RESTAURANTWOODSBORO WWTPTALBOT COUNTY REGION V WWTPMONROVIA WWTPHEBRON WWTPPITTSVILLE WWTPLIBERTYTOWN WWTPWORTON - BUTLERTOWN WWTPBLOOMINGTON WWTPKITZMILLER WWTPGORMAN WWTPANTIETAM WWTPLITTLE ORLEANS CAMPGROUNDSHA - SIDELING HILL REST AREA WWTP & WTPHEARNE-MEADOWS, LLCSANDY HOOK WWTPBRETTON WOODS RECREATION CENTERPLEASANT BRANCH WWTPMILL BOTTOM WWTPBIERS LANE WWTPHAPPY HILLS CAMPGROUND WWTPRUNNYMEDE WWTPSTEVENSON UNIVERSITY WWTPPLEASANT VALLEY gateAggregateAggregate4 of 39

Appendix G – NPDES DischargersInsignificant Municipal FacilitiesSECTORINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT MUNICIPALINSIGNIFICANT ACILITY NAMETOLCHESTER WWTPLEWISTOWN MILLS TREATMENT PLANTTHE JEFFERSON SCHOOLKUNZANG ODSAL PALYUL CHANGCHUB CHOLINGBOWLING BROOK PREPARATORY SCHOOLMIDDLETOWN EAST WWTPHYATTSTOWN WWTPCEDAR RIDGE CHILDREN'S HOME & SCHOOLGLEN ARM WWTP & WTPLEWISTOWN MILLS WWTP NO.233 STAHL POINT, LLCBARTON BUSINESS PARK WWTPTRACEY'S ELEMENTARY SCHOOLCINNAMON WOODS WWTPTRI-TOWNS INDUSTRIAL PARK icant Municipal Federal FacilitiesSECTORINSIGNIFICANT MUNICIPAL FEDERALINSIGNIFICANT MUNICIPAL FEDERALINSIGNIFICANT MUNICIPAL FEDERALINSIGNIFICANT MUNICIPAL FEDERALINSIGNIFICANT MUNICIPAL FEDERALINSIGNIFICANT MUNICIPAL FEDERALINSIGNIFICANT MUNICIPAL FEDERALINSIGNIFICANT MUNICIPAL FEDERALNPDESFACILITY NAMEWLAMD0020095U.S. NAVY - WEBSTER FIELD ANNEXAggregateMD0020168NAVAL RESEARCH LABORATORYAggregateMD0020206U.S. ARMY-CHESAPEAKE CITYAggregateMD0020851USDA WEST-SIDE WWTPAggregateMD0020931NIH ANIMAL CENTERAggregateMD0025119FOXVILLE US NAVAL SUPPORT WWTPAggregateMD0025666FEDERAL SUPPORT CENTER WWTPAggregateMD0065358NATIONAL WILDLIFE VISITOR CENTERAggregate5 of 39

Appendix G – NPDES DischargersSignificant Municipal FacilitiesSECTORSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT 28MD0021636MD0021644MD0021652FACILITY NAMEBLUE PLAINS 1WINEBRENNER WATER RECLAMATION FACILITYCRISFIELD WWTPCHESTERTOWN WWTPINDIAN HEAD WWTPBOONSBORO WWTPFEDERALSBURG WWTPEMMITSBURG WWTPEASTON UTILITIES WWTFCHESAPEAKE BEACH WWTPDENTON WWTPLA PLATA WWTPDELMAR WWTPPERRYVILLE WWTPPRINCESS ANNE WWTPTANEYTOWN WWTPELKTON WWTPCENTREVILLE WATER TREATMENTBRUNSWICK WWTPDAMASCUS WWTPTHURMONT WWTPABERDEEN PROVING GROUNDSENECA WWTP 2FREEDOM DISTRICT WWTPPISCATAWAY WWTPBACK RIVER WWTPABERDEEN ADVANCED WWTPSALISBURY WWTPCUMBERLAND WWTPPATAPSCO WWTPFREDERICK CITY WWTPBOWIE WWTPCAMBRIDGE WWTPBROADNECK WATER RECLAMATION FACILITYPATUXENT WATER RECLAMATION lIndividual6 of 39

Appendix G – NPDES DischargersSignificant Municipal FacilitiesSECTORSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT MUNICIPALSIGNIFICANT 96MD0063207MD0063509MD0063878FACILITY NAMECOX CREEK WATER RECLAMATION FACILITYMARLAY-TAYLOR WWTPPARKWAY WWTPWESTERN BRANCH WWTPHAVRE DE GRACE WWTPHAGERSTOWN WWTPANNAPOLIS WATER RECLAMATION FACILITYBALLENGER-MCKINNEYWESTMINSTER WWTPMATTAWOMAN WWTPHAMPSTEAD WWTPMOUNT AIRY WWTPJOPPATOWNE WWTPPOCOMOKE CITY WWTPHURLOCK WWTPSNOW HILL WWTPMARLBORO MEADOWS WWTPPOOLESVILLE WWTPKENT ISLAND WWTPTALBOT COUNTY REGION II WWTPMARYLAND CORRECTIONAL INSTBROADWATER WATER RECLAMATION FACILITYLEONARDTOWN WWTPNORTHEAST RIVER ADVANCED WWTPFRUITLAND WWTPLITTLE PATUXENTSOD RUN WWTPSWAN POINT WWTPPINEY ORCHARD WWTPGEORGE'S CREEK WWTPMAYO LARGE COMUNALMARYLAND CITYDORSEY RUN ADVANCED WWTPCONOCOCHEAGUE WWTPCELANESE ividual7 of 39

Appendix G – NPDES DischargersSignificant Municipal FacilitiesSECTORSIGNIFICANT MUNICIPALNPDESMD0066613FACILITY NAMEEASTERN CORRECTIONAL INSTITUTEWLAIndividualSignificant Municipal Federal FacilitiesSECTORSIGNIFICANT MUNICIPAL FEDERALSIGNIFICANT MUNICIPAL FEDERALSIGNIFICANT MUNICIPAL FEDERALSIGNIFICANT MUNICIPAL FEDERALSIGNIFICANT MUNICIPAL FEDERALSIGNIFICANT MUNICIPAL FEDERALNPDESFACILITY NAMEWLAMD0020842USDA EAST-SIDE WWTPIndividualMD0020877FORT DETRICK WWTPIndividualMD0020885NAVAL SUPPORT FACILITY INDIAN HEAD WWTPIndividualMD0021229U.S. ARMY ABERDEEN PROVING GROUND- EDGEWOOD AREAIndividualMD0021717U.S. ARMY - FORT GEORGE G. MEADEIndividualMD0023523US NAVAL ACADEMYIndividual8 of 39

Appendix G – NPDES DischargersInsignificant Industrial Facilities3SECTORINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT 988MD0002038MD0002101FACILITY NAMES.E.W. FRIEL WYE MILLSPERDUE FARMS, INC.ALLIANT TECHSYSTEMSVIENNA POWER, LLC.LAFARGE / IMERYSCSX MARC COMMUTER RAIL BRUNS.CSX TRANS CHESAPEAKE AVE.CSX TRANS RIVERSIDE YARDADVENT INDUSTRIES,LLC.FMC CORPORATIONGENOVIQUE SPECIALTIES CORPORATIONJ.M. HUBER CORPORATIONSASOL NORTH AMERICA, INC.MOTIVA ENTERPRISES LLCLEHIGH CEMENT COMPANY - UNIONNORTHROP GRUMMAN SYSTEMS CORP.FIL (US) INC.MOTIVA ENTERPRISES, LLC.BWI - SPARROWS POINT, LLC.MILLENNIUM INORGANIC CHEMICALSHERWIN WILLIAMS COMPANYAMERICAN SUGAR REFINING, INC.CHEVRON PRODUCTS COMPANYUS GYPSUM COCONSTELLATION POWER - RIVERSIDCONSTELLATION POWER SOURCE,INC.CONSTELLATION POWER - C.P. CRAHESS CORPORATIONDIAGEO NORTH AMERICABTR HAMPSTEAD, LLC.KAYDON RING & SEAL, INC.GAF MATERIALS CORP.ESSROC CEMENT CORPORATIONFLEISCHMANN'S VINEGAR COMPANY, gateAggregate9 of 39

Appendix G – NPDES DischargersInsignificant Industrial Facilities3SECTORINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT 182MD0055573MD0055824MD0056928FACILITY NAMEHOLCIM (US) INC.CHESTERTOWN FOODS, INC.NOXELL CORPORATION - BALTIMORECALVERT CLIFFS NUC. PLANT, INCEASTALCO ALUMINUM COMPANYMIRANT - DICKERSON GENERATINGMIRANT CHALK POINTMIRANT MID-ATLANTIC, LLC-MORGANTOWNLOCKE INSULATORS, INC.LMC PROPERTIES, INC.ACADEMY OF NATURAL SCIENCESJCR ENTERPRISES, INC.H & H STORAGE LTD.STONER QUALITY WATER, INC.EASTON UTILITIES COMMISSIONAT T FAULKNER WWTPPETROLEUM FUEL AND TERMINAL CONUSTAR TERMINALS OPERATIONS PARTNERSHIP L.P.SHUFF'S MEAT MARKET, INC.QUEBECOR PRINTING MEMPHIS INCUNIVERSITY OF MARYLAND, CTR. FMaryland Department of Natural ResourcesSEABOARD ASPHALT PRODUCTS COMPANYNuStar Terminal Operations Partnership, L.P.REDLAND BRICK, INC.HAMMAKER EAST LIMITEDClosed Facility (Washington County will retain this allocation)4ALBERT POWELL FISH HATCHERYPRAXAIR INC.MACHADO CONSTRUCTION COMPANY, INC.MIRANT - BRANDYWINE FLYASH SITEMETTIKI COAL CORP.HARFORD SANDSCONSOLIDATION COAL SALES CO.MIRANT - FAULKNER FLYASH egateAggregateAggregate10 of 39

Appendix G – NPDES DischargersInsignificant Industrial Facilities3SECTORINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT 843MD0063916MD0063924MD0063975FACILITY NAMECSX TRANSPORTATION, INC.MIRANT MID-ATLANTIC, LLCQuarantine Road LandfillPETROLEUM FUEL AND TERMINAL COCOLONIAL PIPELINE COMPANY - WOUMBC TECHNOLOGY CENTERCITY OF WESTMINSTER KOONTZ WELTRANS-TECH INCORPORATEDNATIONAL AQUARIUM IN BALTIMOREHESCO, INC.CARGILL, INC. - SALT DIVISIONWHEELABRATOR BALTIMORE, L.P.COLONIAL PIPELINE COMPANY - FOCHESAPEAKE BIOLOGICAL LABORATOOLD REICHS FORD MUNICIPAL LANDMEXICO FARMS, LLC1400TAYLOR AVENUE ASSOC LLCNEW DESIGN ROAD W T PBALTIMORE CITY COMPOSTING PARTTRIGEN-ENERGY BALTIMOREMONTGOMERY COUNTY YARD WASTE CSUPPORT TERMINAL OPERATING PARUMATA--SOUTHERN AVE ANNEXCONSOLIDATED PHARM GROUP INCWMATA - MARINELLI ROADMD AVIATION ADMINISTRATION-BWIARCAL CHEMICALS INC.GRAY and SON, INC.SAPUTO CHEESE USA,INC.DORCHESTER LUMBER CO., INC.UNIVERSITY OF MARYLAND C.PARKMARYLAND DEPARTMENT OF NATURALMD - SHA - GREEN HILL COVE WWTPHERNWOOD LANDFILL-NORTHCOVE POINT LNG ggregateAggregateAggregate11 of 39

Appendix G – NPDES DischargersInsignificant Industrial Facilities3SECTORINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT 938MD0067962MD0067997MD0068039FACILITY NAMEW.L. GORE & ASSOCIATES, INC. - FAIR HILL PLANTINDEPENDENT CAN COMPANYWMATA - LANDOVER BUS DIVISIONCONCRETE GENERAL, INC.PG CO YARD WASTE COMP. FACSOLO CUP OPERATING CORPORATION - FEDERALSBURGU. OF MD. WYE RESEARCH CENTERSOMERSET COUNTY OFFICE OF SOLIEASTERN CORRECTIONAL INST WESTOLLGATE LANDFILLALLIANT TECHSYSTEMS INC.NATIONAL ARCHIVES & RECORDS ADMINISTRATIONTELEDYNE ENERGY SYSTEMS,INC.AES WARRIOR RUN, INCORPORATEDHARWOOD LANDFILL, INC.HOWARD COUNTY - MAYFIELD FACILITYMILLENNIUM INORGANIC CHEMICALSVINDEX ENERGY CORPORATION - SM-96-427CHOPTANK ELECTRIC COOPERATIVEDUNDALK MARINE TERMINALTRIGEN-ENERGY BALTIMORENEWSTECH MD, LPMARYLAND MILITARY DEPT. - CAMPVINDEX ENERGY CORPORATION - MOORES RUNUSG INTERIORS ACCESS FLOOR DIVSOMERSET COUNTY LANDFILLCRANBERRY WATER TREATMENT PLTCity of Hagerstown Water DepartmentALPHA RIDGE MUNICIPAL LANDFILLCARRS MILL LANDFILLHARFORD CO.WASTE DISPOSAL CTR.GENERAL ELECTRIC COMPANYELK RIDGE WTPW.R. GRACE & COMPANY - CONN.NEW CUT ggregateAggregateAggregate12 of 39

Appendix G – NPDES DischargersInsignificant Industrial Facilities3SECTORINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT 159MD0069221MD0069469MD0069493FACILITY NAMEHARFORD COUNTY MAINT FACILITYQUEEN CITY METALS AND RECYLING(BROCK STEEL COMPANYWIN-MORE MINING OPA NO 98-09SNOW HILL DISTRICT COURT - SOCIAL SERVICES COMPLEXGLOBAL EXCHANGE SERVICESBRIDGETOWN AQUACULTUREBITUMAR U S A,INC.SHA- DAYTON SHOPDORCHESTER COUNTY HIGHWAY DEPT BLACKTOP PLANTRELIABLE CONTRACTING CO., INC.GEORGE CREEK, INC. - DEEP MINEJOHN W.RITTER TRUCKING,INC.NORTHROP GRUMMAN CORPORATIONDISTRICT COURT BUILDING - CAMBTEA BOW DAIRY FARMS INCG & S COAL COMPANY,INC.NANTIOCKE FOODS,LLC.ANNE ARUNDEL COUNTY DPW-CEN SESTUP'S GARAGE / USED CARS,INC.PARK PLACE MIXED USE DEV.BALTO.CO. CLUB @ FIVE FARMSBBSS, INC.MUSHROOM CANNING COMPANYW.M.A.T.A.- RED LINE P.S.SHA - CENTREVILLE SHOPSHA - LEONARDTOWN MAINTENANCE SHOPSHA- HEREFORD SHOPEMERSON ELECTRICFORESTVILLE ASPHALT D'ARCY ROADTOWN OF CLEAR SPRING WTFPATTERSON PARKMOUNTAIRE FARMS INC PRINCESS ANNESHA - CHURCHVILLE SHOPSHA - HANOVER COMPLEXBLUE MOUNTAIN MATERIALS, ateAggregateAggregate13 of 39

Appendix G – NPDES DischargersInsignificant Industrial Facilities3SECTORINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT INDUSTRIALINSIGNIFICANT 084MD0070092MD0070343MD0070386MD0070408FACILITY NAMECATOCTIN POWERW L GORE ASSOCIATES INC CHERRY HILL PLANTRITCHIE LAND RECLAMATION LIMITED PARTNERSHIPELIZABETH B WILSON RESIDENCE WWTPHARFORD COUNTY RRF - JOPPA WASTE ENERGY PLANTTHOMAS RUARK INCDOWNS RD PITDILLON'S BUS SERVICE, INC. - MILLERSVILLELANKFORD SYSCO FOOD SERVICES LLCMCKAY BOWLING PROPERTY-CHANEY ENTERPRISESWMATA LARGO OPERATIONS BUILDINGLAFARGE - CECIL CONCRETE PLANTBARDON,INC - BLADENSBURG READY-MIX CONCRETEBREEZY POINT MARINA, INC.LAFARGE MID ATL

insignificant municipal md0052311 college of southern maryland aggregate insignificant municipal md0052671 kennedyville wwtp aggregate insignificant municipal md0052680 edgemeade wwtp aggregate insignificant municipal md0052825 cherry hill wwtp aggregate insignificant municipal md0053066 fahrney-keedy memorial home aggregate