EPA UCMR 5 results for 291 public water systems. 146 had at least one PFAS detected; 116 had a highest single PFOA or PFOS result above 4.0 ppt.
UCMR 5 is a one-time EPA monitoring program, not a compliance determination. The values shown are the highest single sample result at any of the system's sampling points; one result above 4.0 ppt does not mean the system violates the PFAS rule, which is judged on running annual averages under separate compliance monitoring. Results describe the public water system, not an individual home.
| Water system | Serves | PFOA max (ppt) | PFOS max (ppt) | PFAS detected |
|---|---|---|---|---|
| Aberdeen, Town Of NC0363020 | Aberdeen | 4.8 | 8.8 | 6 |
| Ahoskie, Town Of NC0446010 | Ahoskie | ND | ND | 0 |
| Albemarle, City Of NC0184010 | Albemarle | ND | 4.3 | 3 |
| Alexander Co WTR Dist NC0102020 | Taylorsville | ND | ND | 0 |
| Angier, Town Of NC0343015 | Angier | 8.7 | 13.5 | 8 |
| Anson County Water System NC0304010 | Lilesville | 4 | 5.5 | 4 |
| Apex, Town Of NC0392045 | Apex | ND | ND | 4 |
| Appalachian State Univ WTP NC0195101 | Boone | ND | ND | 0 |
| Archdale, City Of NC0276030 | Archdale | 5.6 | 10.6 | 8 |
| Asheboro, City Of NC0276010 | Asheboro | 10.2 | 16.3 | 8 |
| Asheville City Of NC0111010 | Asheville | ND | ND | 0 |
| Atlantic Beach, Town Of NC0416035 | Atlantic Beach | ND | ND | 0 |
| Ayden Town Of NC0474025 | Ayden | 6.5 | 11.5 | 7 |
| Baton Water Corporation NC0114025 | Granite Falls | ND | ND | 0 |
| Bayleaf Master NC0392373 | Raleigh | 10.4 | 21.3 | 9 |
| Beaufort Co Northside Regional Water NC0407035 | Washington | ND | ND | 0 |
| Beaufort Co Southside NC0407040 | Edward | ND | ND | 0 |
| Beaufort, Town Of NC0416010 | Beaufort | ND | ND | 0 |
| Bell Arthur Water Corp NC0474045 | Bellarthur | 4.4 | 9.9 | 7 |
| Belmont, City Of NC0136015 | Belmont | ND | ND | 2 |
| Benson, Town Of NC0351025 | Benson | 8.9 | 15 | 8 |
| Bertie County Regional Water NC0408085 | Windsor | ND | ND | 0 |
| Bessemer City, City Of NC0136025 | Bessemer City | 5.8 | ND | 6 |
| Bethel Elementary School NC1044013 | Haywood County | ND | ND | 0 |
| Bladen Co WTR Dist-East Bladen NC0309060 | White Lake | ND | ND | 1 |
| Bladen Co WTR Dist-West Bladen NC0309055 | Elizabethtown | ND | ND | 0 |
| Blowing Rock, Town Of NC0195020 | Blowing Rock | ND | ND | 0 |
| Blue Ridge Water Association NC0197030 | Hays | ND | ND | 1 |
| Bogue Banks Water Corporation NC0416028 | Emerald Isle | ND | ND | 0 |
| Boiling Springs, Town Of NC0123025 | Boiling Springs | ND | ND | 0 |
| Bolton, Town Of NC0424050 | Bolton | ND | ND | 0 |
| Boone, Town Of NC0195010 | Boone | ND | ND | 1 |
| Bragg Communities/Nta NC5043001 | Cameron | 11 | 14 | 8 |
| Brentwood Water Association NC0112103 | Glen Alpine | ND | ND | 0 |
| Brentwood-Jamestown Road NC0112104 | Morganton | ND | ND | 0 |
| Brevard, City Of NC0188010 | Brevard | ND | ND | 0 |
| Broad River Water Authority NC0181035 | Rutherfordton | ND | ND | 1 |
| Broadway Water Association NC0197035 | N Wilkesboro | ND | ND | 0 |
| Brookwood Comm WTR System NC0326127 | Fayetteville | 27.5 | 33.3 | 8 |
| Brunswick County Water System NC0410045 | Leland | 7.7 | 12.4 | 9 |
| Brunswick Regional Water & Sewer H2Go NC0410070 | Leland | ND | ND | 0 |
| Bryson City, Town Of NC0187010 | Bryson City | ND | ND | 0 |
| Burgaw, Town Of NC0471010 | Burgaw | ND | ND | 0 |
| Burlington, City Of NC0201010 | Burlington | 13 | 17 | 7 |
| Burnsville, Town Of NC0100010 | Burnsville | ND | ND | 0 |
| Caldwell County Water--West NC0114045 | Hudson | ND | ND | 0 |
| Canton, Town Of NC0144015 | Canton | ND | ND | 0 |
| Carolina Beach Water System NC0465015 | Carolina Beach | ND | ND | 0 |
| Carolina Trace Water System NC0353101 | Sanford | 9.7 | 14 | 8 |
| Carthage, Town Of NC0363025 | Carthage | ND | ND | 0 |
| Cary, Town Of NC0392020 | Cary | ND | ND | 4 |
| Central Nash Water & Sewer NC4064005 | Nashville | 6.3 | 10.2 | 3 |
| Cfpua-Wilmington NC0465010 | Wilmington | ND | ND | 1 |
| Cfpua/Monterey Heights NC0465137 | Wilmington | ND | ND | 2 |
| Charlotte Water NC0160010 | Charlotte | ND | ND | 2 |
| Chatham Co-North NC0319126 | Apex | ND | ND | 2 |
| Cherryville, City Of NC0136030 | Cherryville | ND | ND | 0 |
| Childrens Choice Childcare NC0241647 | Summerfield | ND | ND | 0 |
| China Grove, Town Of NC0180040 | China Grove | ND | 4.4 | 3 |
| Chinquapin Water Association NC0431050 | Chinquapin | ND | ND | 0 |
| Chowan Co Water System NC0421015 | Edenton | ND | ND | 0 |
| Clarkton, Town Of NC0309020 | Clarkton | ND | ND | 0 |
| Clayton, Town Of NC0351020 | Clayton | 8.2 | 8.1 | 5 |
| Cleveland County Water NC0123055 | Lawndale | ND | ND | 0 |
| Cliffdale West NC0326332 | Fayetteville | 16.3 | 19.5 | 7 |
| Clinton, City Of NC0382010 | Clinton | ND | ND | 0 |
| Columbus Co Water District II NC7024007 | Whiteville | ND | ND | 0 |
| Concord, City Of NC0113010 | Concord | ND | 9.1 | 2 |
| Connestee Falls NC0188104 | Brevard | ND | ND | 0 |
| Conover, City Of NC0118020 | Conover | ND | ND | 0 |
| Copper Trace S/D NC3001006 | Swepsonville | ND | ND | 0 |
| Craven County Water System NC0425055 | New Bern | ND | ND | 0 |
| Currituck County Water System NC0427010 | Maple | ND | ND | 0 |
| Dallas, Town Of NC0136065 | Dallas | 4.4 | ND | 6 |
| Dare Co-Cape Hatteras Water NC0428025 | Buxton | ND | ND | 0 |
| Dare County Water System NC0428030 | Kill Devil Hill | ND | ND | 0 |
| Davidson Water Inc NC0229025 | Lexington | ND | ND | 0 |
| Davie County Water System NC0230015 | Mocksville | ND | ND | 0 |
| Deep Run Water Corporation NC0454030 | Deep Run | 7 | 11.5 | 7 |
| Diamond Head S/D NC0149182 | Mooresville | 4.6 | ND | 5 |
| Dunn, City Of NC0343010 | Erwin | 12 | 14.4 | 8 |
| Duplin County Water System NC0431085 | Kenansville | ND | ND | 0 |
| Durham, City Of NC0332010 | Durham | 4.1 | 5.8 | 4 |
| East Moore Water District NC5063011 | Carthage | 8.1 | 12 | 8 |
| Eastern Pines Water Corp NC0474015 | Greenville | 6.1 | 10.4 | 7 |
| Eastover Sanitary District NC5026027 | Eastover | 10.1 | 14 | 8 |
| Eden, City Of NC0279010 | Eden | ND | ND | 0 |
| Edenton, Town Of NC0421010 | Edenton | ND | ND | 0 |
| Edgecombe Water & Sewer District NC0433050 | Tarboro | 4.5 | 4.7 | 2 |
| Elizabeth City, City Of NC0470010 | Elizabeth City | ND | ND | 0 |
| Elizabethtown, Town Of NC0309010 | Elizabethtown | ND | ND | 1 |
| Elkin, Town Of NC0286020 | Elkin | ND | ND | 0 |
| Elon, Town Of NC0201025 | Elon | 5.3 | 9 | 3 |
| Energy United Water Corp NC0102015 | Hiddenite | ND | ND | 0 |
| Fairfield Harbour NC0425132 | Bridgeton | ND | ND | 0 |
| Faison, Town Of NC0431040 | Faison | ND | ND | 0 |
| Farm Water Works NC0353127 | Sanford | ND | 4.2 | 2 |
| Farmville, Town Of NC0474020 | Farmville | 5.3 | 4.2 | 5 |
| Fayetteville Public Works Comm NC0326010 | Fayetteville | 11 | 21.8 | 9 |
| First Craven Sanitary District NC0425040 | Bridgeton | ND | ND | 0 |
| Flowers Plantation NC0351195 | Clayton | 7.7 | 9.5 | 8 |
| Forest City, Town Of NC0181010 | Forest City | ND | ND | 0 |
| Fork Township Sanitary District NC0496060 | Goldsboro | ND | ND | 0 |
| Franklin County Water & Sewer NC0235030 | Franklinton | ND | 4.4 | 1 |
| Franklin, Town Of NC0157010 | Franklin | ND | ND | 0 |
| Fremont, Town Of NC0496025 | Fremont | ND | ND | 0 |
| Fuquay-Varina, Town Of NC0392055 | Fuquay-Varina | 11 | 11 | 9 |
| Gates County Water System NC0437020 | Gatesville | ND | ND | 0 |
| Gibsonville, Town Of NC0241025 | Gibsonville | ND | 8.2 | 2 |
| Goldsboro, City Of NC0496010 | Goldsboro | 6.6 | 6.8 | 6 |
| Graham, City Of NC0201015 | Mebane | 7.6 | 7.4 | 5 |
| Granite Falls, Town Of NC0114030 | Granite Falls | ND | ND | 0 |
| Grassy Pond Water Corporation NC2023003 | Gaffney | 13 | 16 | 7 |
| Greene Co Regional Water Syst NC0440106 | Snow Hill | ND | 4.3 | 1 |
| Greensboro, City Of NC0241010 | Greensboro | 5.6 | 35.6 | 9 |
| Greenville Utilities Comm NC0474010 | Greenville | 7.6 | 6.3 | 6 |
| Grifton, Town Of NC0474035 | Grifton | 6.5 | 11.5 | 7 |
| Halifax Co--Halifax NC0442040 | Roanoke Rapids | ND | 5 | 1 |
| Hamlet Water System NC0377010 | Hamlet | 5.7 | 6.9 | 3 |
| Handy Sanitary District NC0229035 | Denton | ND | 4.1 | 4 |
| Harbour Point S/D NC0149185 | Mooresville | ND | ND | 4 |
| Harnett Regional Water NC0343045 | Lillington | 7.7 | 12.3 | 7 |
| Harrisburg, Town Of NC0113025 | Harrisburg | ND | 10.3 | 5 |
| Havelock Water System NC0425015 | Havelock | ND | ND | 0 |
| Henderson-Kerr Lake Reg WTR NC0291010 | Henderson | ND | 4.8 | 1 |
| Hendersonville, City Of NC0145010 | Hendersonville | ND | ND | 0 |
| Hertford County Rural Water NC0446045 | Winton | ND | ND | 0 |
| Hickory City Of NC0118010 | Hickory | ND | ND | 0 |
| High Point, City Of NC0241020 | High Point | 4.2 | 11 | 6 |
| High Vista Estates NC0145140 | Hendersonville | ND | ND | 0 |
| Highlands, Town Of NC0157015 | Highlands | ND | ND | 0 |
| Hillsborough, Town Of NC0368015 | Hillsborough | ND | ND | 0 |
| Hoke Co Regional Water System NC0347025 | Raeford | ND | 4.8 | 3 |
| Hoke Co Regional--Rockfish NC0347030 | Raeford | 8.2 | 15 | 8 |
| Holden Beach, Town Of NC0410060 | Holden Beach | 5.6 | 10.9 | 7 |
| Holly Springs, Town Of NC0392050 | Holly Springs | 5.9 | 12 | 8 |
| Hyde County Water System NC0448010 | Swanquarter | ND | ND | 0 |
| Icard Township Water Corp NC0112060 | Hildebran | ND | ND | 0 |
| Iredell Water Corporation NC0149025 | Statesville | 18.8 | 4.9 | 8 |
| Jacksonville City Of NC0467010 | Jacksonville | ND | ND | 0 |
| Jamestown, Town Of NC0241030 | Jamestown | 5.9 | 10.4 | 8 |
| Johnston Co-East NC4051018 | Smithfield | 7.7 | 9.7 | 8 |
| Johnston Co-West NC0351070 | Wilson Mills | 7.6 | 14.1 | 8 |
| Jones County Water System NC0452020 | Trenton | ND | ND | 0 |
| Junaluska Sanitary District NC0144035 | Waynesville | ND | ND | 0 |
| Kannapolis, City Of NC0180065 | Kannapolis | ND | 5.4 | 1 |
| Kill Devil Hills, Town Of NC0428015 | Kill Devil Hill | ND | ND | 0 |
| King, City Of NC0285010 | King | ND | ND | 0 |
| Kings Mountain, Town Of NC0123020 | Kings Mountain | ND | ND | 2 |
| Kinston, City Of NC0454010 | Kinston | 4.8 | 8.5 | 7 |
| Kure Beach Water System NC0465025 | Kure Beach | ND | ND | 0 |
| Lake Royale S/D NC0235108 | Bunn | ND | 4.8 | 1 |
| Lamplighter South-Danby NC0160156 | Charlotte | ND | 5.4 | 6 |
| Laurinburg, City Of NC0383010 | Laurinburg | ND | ND | 0 |
| Lenoir, City Of NC0114010 | Granite Falls | ND | ND | 0 |
| Lexington NC, City Of NC0229010 | Lexington | ND | ND | 0 |
| Lillington Water System NC0343025 | Lillington | 7.9 | 11.4 | 8 |
| Lincoln County WTP NC0155035 | Denver | 5.7 | ND | 4 |
| Lincolnton, City Of NC0155010 | Lincolnton | 6.1 | ND | 4 |
| Littleton, Town Of NC0442028 | Littleton | 4 | 6.9 | 2 |
| Longview, Town Of NC0118025 | Longview | ND | ND | 0 |
| Lowell, City Of NC0136060 | Lowell | ND | ND | 0 |
| Lumberton, City Of NC0378010 | Lumberton | 5.7 | 7.9 | 4 |
| Maggie Valley Sanitary Dist NC0144040 | Maggie Valley | ND | ND | 0 |
| Maiden, Town Of NC0118030 | Maiden | 11.9 | ND | 1 |
| Marine Corps Air Station Cherry Point NC0425035 | Cherry Point | ND | ND | 0 |
| Marion, City Of NC0156010 | Marion | ND | ND | 0 |
| Maxton, Town Of NC0378035 | Maxton | ND | ND | 0 |
| Meadow Lake S/D NC0392159 | Apex | ND | ND | 1 |
| Mebane, City Of NC0201018 | Mebane | 7.8 | 7.4 | 5 |
| Mocksville, Town Of NC0230010 | Mocksville | ND | ND | 1 |
| Monroe, City Of NC0190010 | Monroe | ND | ND | 2 |
| Montgomery County Water System NC0362010 | Mt Gilead | ND | 4.4 | 2 |
| Moore Co Public Util-Pinehurst NC0363108 | Pinehurst | 8.5 | 9.6 | 8 |
| Mooresville Town Of NC0149015 | Mooresville | ND | ND | 0 |
| Moravian Falls Water System NC0197040 | Moravian Falls | ND | ND | 0 |
| Morehead City, Town Of NC0416015 | Morehead City | ND | ND | 0 |
| Morganton City Of NC0112015 | Morganton | ND | ND | 0 |
| Mount Airy, City Of NC0286010 | Mount Airy | ND | ND | 0 |
| Mount Holly, City Of NC0136020 | Mt Holly | ND | ND | 0 |
| Mount Olive, Town Of NC0496015 | Mount Olive | ND | ND | 0 |
| Mulberry-Fairplains WTR Assoc NC0197015 | N Wilkesboro | ND | ND | 0 |
| Murfreesboro, Town Of NC0446015 | Murfreesboro | ND | ND | 0 |
| Murphy, Town Of NC0120010 | Murphy | ND | ND | 0 |
| Nashville, Town Of NC0464020 | Nashville | 6.6 | 490 | 6 |
| New Bern, City Of NC0425010 | New Bern | ND | ND | 0 |
| Newport Water System NC0416020 | Newport | ND | 8.1 | 1 |
| Newton NC, City Of NC0118015 | Newton | ND | ND | 1 |
| North Lenoir Water Corp NC0454025 | Kinston | 6 | 10.1 | 7 |
| North Wilkesboro, Town Of NC0197010 | N Wilkesboro | ND | ND | 0 |
| Northampton--Lake Gaston NC0466110 | Lake Gaston | ND | 6.2 | 1 |
| Northampton--Milwaukee NC0466108 | Jackson | ND | ND | 0 |
| Norwood, Town Of NC0184015 | Norwood | ND | 5.1 | 2 |
| Oak Island, Town Of NC0410020 | Oak Island | 7 | 12 | 9 |
| Ocean Isle Beach, Town Of NC0410035 | Ocean Isle Beach | 7.4 | 15 | 9 |
| Old Fort, Town Of NC0156025 | Old Fort | ND | ND | 1 |
| Old North Utilities Services/Ft Bragg NC5026019 | Fayetteville | 8.7 | 14.3 | 8 |
| Onslow WTR and Sewer Authority NC0467035 | Jacksonville | ND | ND | 0 |
| Orange Water & Sewer Authority NC0368010 | Carrboro | 4.6 | 4.8 | 2 |
| Orange-Alamance Water System NC0368020 | Efland | 9.4 | 12.2 | 5 |
| Oxford, City Of NC0239010 | Oxford | ND | 5.3 | 2 |
| Pamlico County Water NC0469025 | Bayboro | ND | ND | 0 |
| Pasquotank Co Ro Water System NC6070000 | Elizabeth City | ND | ND | 0 |
| Pasquotank County Water System NC0470015 | Elizabeth City | ND | ND | 0 |
| Pender County Utilities NC7071011 | Burgaw | ND | ND | 4 |
| Perquimans County Water System NC0472025 | Hertford | ND | ND | 0 |
| Pfeiffer-N Stanly Water Assoc NC0184025 | Richfield | ND | 5.5 | 3 |
| Pine Knoll Shores NC0416031 | Morehead City | ND | ND | 0 |
| Pinewood Acres Water System NC0118168 | Sherrills Ford | ND | ND | 0 |
| Pittsboro, Town Of NC0319015 | Pittsboro | ND | ND | 3 |
| Plymouth Water System NC0494010 | Plymouth | ND | ND | 0 |
| Raeford, City Of NC0347010 | Raeford | ND | ND | 0 |
| Raleigh, City Of NC0392010 | Raleigh | ND | 5.6 | 5 |
| Randleman, City Of NC0276015 | Randleman | 11.4 | 14.1 | 8 |
| Ranlo, Town Of NC0136034 | Ranlo | ND | ND | 0 |
| Red Springs, Town Of NC0378015 | Red Springs | ND | ND | 0 |
| Reidsville, City Of NC0279020 | Reidsville | ND | 4 | 1 |
| Richmond County Water System NC0377109 | Rockingham | ND | 4.7 | 5 |
| Roanoke Rapids Sanitary Dist NC0442010 | Roanoke Rapids | ND | 5.4 | 1 |
| Robeson County Water System NC0378055 | Maxton | 30 | 6.1 | 10 |
| Rockingham, City Of NC0377015 | Rockingham | 4.4 | 4.9 | 5 |
| Rocky Mount, City Of NC0464010 | Rocky Mount | 8.6 | 9.4 | 2 |
| Roxboro, City Of NC0273010 | Roxboro | ND | 4.6 | 1 |
| Salisbury-Rowan NC0180010 | Salisbury | ND | ND | 0 |
| Sampson Co WTR Dist II NC0382070 | Clinton | ND | ND | 0 |
| Sanford, City Of NC0353010 | Sanford | 9.4 | 16 | 8 |
| Sawmills, Town Of NC0114040 | Granite Falls | ND | ND | 0 |
| Selma, Town Of NC0351015 | Selma | ND | 11 | 7 |
| Selma, Town of (County Line) NC4051009 | Selma | 5.7 | 6.6 | 6 |
| Seymour Johnson AFB NC0496055 | Seymour Johnson | 6.8 | 7.3 | 6 |
| Shangri-La S/D NC0118255 | Newton | ND | ND | 0 |
| Shelby, City Of NC0123010 | Shelby | ND | ND | 0 |
| Siler City, Town Of NC0319010 | Siler City | 4.7 | 12.1 | 4 |
| Smithfield Fresh Meats Corp - Tar Heel NC0309527 | Tar Heel | 4.9 | 6.1 | 7 |
| Smithfield NC, Town Of NC0351010 | Smithfield | 4.7 | 7.7 | 6 |
| South Camden WTR & SWR Distrct NC0415015 | Camden | ND | ND | 0 |
| South Granville Wtr&Sewer Authority NC0239107 | Butner | 11 | 19 | 2 |
| Southern Middle School NC3041076 | Guilford County | 5.3 | ND | 4 |
| Southern Outer Banks WTR Syst NC6027001 | Corolla | ND | ND | 1 |
| Southern Pines, Town Of NC0363010 | Pinebluff | ND | ND | 0 |
| Southern Wayne Sanitary Dist NC0496045 | Goldsboro | ND | ND | 2 |
| Southgate S/D NC0351185 | Clayton | 7.6 | 7.7 | 6 |
| Southport City Of NC0410010 | Southport | ND | ND | 0 |
| Spring Lake, Town Of NC0326020 | Spring Lake | 9.4 | 15.6 | 8 |
| Spruce Pine, Town Of NC0161010 | Spruce Pine | ND | ND | 0 |
| Stanley, Town Of NC0136035 | Stanley | ND | ND | 0 |
| Stanly Co-West Stanly Dist NC0184035 | Locust | ND | 5.7 | 3 |
| Statesville, City Of NC0149010 | Statesville | ND | ND | 0 |
| Stokes Regional Water Corp NC0474060 | Stokes | 5.8 | 6 | 5 |
| Stokesdale, Town Of NC0241035 | Stokesdale | ND | ND | 0 |
| Surf City, Town Of NC0471015 | Surf City | ND | ND | 0 |
| Tarboro, Town Of NC0433010 | Tarboro | 5.9 | 5.1 | 3 |
| The Cape Master System NC0465199 | Wilmington | ND | ND | 2 |
| Thomasville, City Of NC0229020 | Thomasville | ND | 4.7 | 1 |
| Troutman, Town Of NC0149030 | Troutman | ND | ND | 0 |
| Troy, Town Of NC0362020 | Troy | ND | 5.5 | 3 |
| Tryon, Town Of NC0175010 | Tryon | ND | ND | 0 |
| Tuckaseigee Water & Sewer Auth NC0150035 | Cullowhee | ND | ND | 0 |
| Two Rivers Utilities NC0136010 | Gastonia | ND | ND | 0 |
| USMC Lejeune--Hadnot Point NC0467041 | Camp Lejeune | ND | ND | 0 |
| USMC Lejeune--Holcomb BLVD NC0467043 | Camp Lejeune | ND | ND | 0 |
| USMC Lejeune--New River Air St NC0467042 | Camp Lejeune | ND | ND | 0 |
| Union County Water System NC0190413 | Monroe | 4.2 | 4.9 | 5 |
| Valdese, Town Of NC0112010 | Valdese | ND | ND | 0 |
| Wadesboro, Town Of NC0304020 | Wadesboro | ND | 5.2 | 4 |
| Wallace, Town Of NC0431010 | Wallace | ND | ND | 0 |
| Warren County Water System NC0293015 | Warrenton | ND | 5.5 | 1 |
| Washington County Water System NC0494025 | Roper | ND | ND | 0 |
| Washington, City Of NC0407010 | Washington | ND | ND | 0 |
| Wayne Water Districts NC0496065 | Goldsboro | ND | ND | 1 |
| Wayne Water Districts Purchase NC6096001 | Goldsboro | 5 | 5.4 | 4 |
| Waynesville, Town Of NC0144010 | Waynesville | ND | ND | 0 |
| Weaverville, Town Of NC0111025 | Weaverville | ND | ND | 0 |
| West Carteret Water Corp NC0416040 | Newport | ND | ND | 0 |
| West Iredell Water Corporation NC0149158 | Statesville | ND | ND | 1 |
| West Wilkes WTR Association Inc NC0197020 | Miller Creek | ND | ND | 1 |
| Western Carolina Univ WTP NC0150116 | Cullowhee | ND | ND | 0 |
| Whispering Pines Development NC0363112 | Whispering Pines | ND | ND | 0 |
| White Lake, Town Of NC0309030 | White Lake | ND | ND | 0 |
| Whiteville, City Of NC0424010 | Whiteville | ND | ND | 0 |
| Wilkesboro, Town Of NC0197025 | Wilkesboro | ND | ND | 0 |
| Williamston, Town Of NC0459010 | Williamston | ND | 4.8 | 1 |
| Wilson Co Southeast Water Dist NC4098014 | Wilson | ND | ND | 0 |
| Wilson Co Southwest Water Dist NC4098012 | Wilson | ND | ND | 0 |
| Wilson, City Of NC0498010 | Wilson | ND | ND | 0 |
| Wingate, Town Of NC0190030 | Wingate | ND | 4.9 | 4 |
| Winston-Salem, City Of NC0234010 | Clemmons | ND | ND | 0 |
| Winterville, Town Of NC0474040 | Winterville | 5.3 | 6.6 | 5 |
| Woodfin Sanitary Water and Sewer NC0111015 | Weaverville | ND | ND | 0 |
| Wrightsville Beach Water NC0465020 | Wrightsville Beach | ND | ND | 1 |
| Yadkinville, Town Of NC0299015 | Yadkinville | ND | ND | 1 |
ND = not detected (below the 4 ppt UCMR 5 reporting level). Values are the highest single sample result, not an annual average.