EPA data as of Oct 2026 · page updated 2026-10-30
North Carolina: drinking water & radon
North Carolina has 1,960 active community water systems. Since 2016, 481 reported health-based violations; 8 had a latest lead result above 15 ppb; 113 measured PFOA or PFOS at or above 4 ppt.
Water systems1,960
With violations481
Radon zone 1 ZIPs81
ZIPs likely on wells134
Radon zones in North Carolina
tap a countyZone 1 · highestZone 2 · moderateZone 3 · low
Most health-based violations
| Circle H MHP 68 people | 35 |
| Town of Mount Pleasant 1,786 people | 23 |
| Town of Edenton 5,500 people | 20 |
| Hamlet Water System 10,635 people | 19 |
| Montgomery County Water System 15,362 people | 16 |
| Pender County Utilities 32,302 people | 16 |
| Rockbridge S/D 1,042 people | 15 |
| Southern Trace S/D 485 people | 14 |
| Town of Carthage 4,307 people | 14 |
| Town of Ramseur 1,790 people | 13 |
Highest latest lead (90th percentile)
| Twin Oaks Shores 70 people | 23 ppb |
| Stoney Oaks S/D 74 people | 16 ppb |
| Firefly Cove 99 people | 15.5 ppb |
| Town of Lake Lure 1,176 people | 15 ppb |
| Eagles Crossing S/D 196 people | 15 ppb |
| Town of China Grove 4,895 people | 15 ppb |
| Shady Haven MHP 46 people | 13.5 ppb |
| Carvel Manor MHP 148 people | 13.5 ppb |
| Salisbury-Rowan 46,156 people | 13 ppb |
| Huntington Woods MHP 300 people | 13 ppb |
Highest PFOA / PFOS
| Town of Nashville 5,900 people | 490 ppt |
| City of Greensboro 319,588 people | 35.6 ppt |
| Brookwood Comm WTR System 15,380 people | 33.3 ppt |
| Robeson County Water System 67,970 people | 30 ppt |
| Fayetteville Public Works Comm 226,441 people | 21.8 ppt |
| Bayleaf Master 16,715 people | 21.3 ppt |
| Cliffdale West 15,220 people | 19.5 ppt |
| South Granville WTR&Sewer Authority 18,555 people | 19 ppt |
| Iredell Water Corporation 29,370 people | 18.8 ppt |
| City of Burlington 61,365 people | 17 ppt |
Largest systems
| Charlotte Water 1,206,285 people | 1,206,285 |
| City of Raleigh 650,000 people | 650,000 |
| City of Winston-Salem 391,900 people | 391,900 |
| City of Durham 333,490 people | 333,490 |
| City of Greensboro 319,588 people | 319,588 |
| Town of Cary 227,300 people | 227,300 |
| Fayetteville Public Works Comm 226,441 people | 226,441 |
| Cfpua-Wilmington 212,227 people | 212,227 |
| Union County Water System 169,685 people | 169,685 |
| City of Asheville 157,431 people | 157,431 |
All ZIP codes in North Carolina
1,072 ZIP codes.
27006Advance27007Ararat27009Belews Creek27010Bethania27011Boonville27012Clemmons27013Cleveland27014Cooleemee27016Danbury27017Dobson27018East Bend27019Germanton27020Hamptonville27021King27022Lawsonville27023Lewisville27024Lowgap27025Madison27027Mayodan27028Mocksville27030Mount Airy27031White Plains27040Pfafftown27041Pilot Mountain27042Pine Hall27043Pinnacle27045Rural Hall27046Sandy Ridge27047Siloam27048Stoneville27049Toast27050Tobaccoville27051Walkertown27052Walnut Cove27053Westfield27054Woodleaf27055Yadkinville27094Rural Hall27098Rural Hall27099Rural Hall27101Winston-Salem27102Winston-Salem27103Winston-Salem27104Winston-Salem27105Winston-Salem27106Winston-Salem27107Winston-Salem27108Winston-Salem27109Winston-Salem27110Winston-Salem27111Winston-Salem27113Winston-Salem27114Winston-Salem27115Winston-Salem27116Winston-Salem27117Winston-Salem27120Winston-Salem27127Winston-Salem27130Winston-Salem27150Winston-Salem27152Winston-Salem27155Winston-Salem27157Winston-Salem27198Winston-Salem27199Winston-Salem27201Alamance27202Altamahaw27203Asheboro27204Asheboro27205Asheboro27207Bear Creek27208Bennett27209Biscoe27212Blanch27213Bonlee27214Browns Summit27215Burlington27216Burlington27217Burlington27228Bynum27229Candor27230Cedar Falls27231Cedar Grove27233Climax27235Colfax27237Cumnock27239Denton27242Eagle Springs27243Efland27244Elon27247Ether27248Franklinville27249Gibsonville27252Goldston27253Graham27256Gulf27258Haw River27259Highfalls27260High Point27261High Point27262High Point27263High Point27264High Point27265High Point27268High Point27278Hillsborough27281Jackson Springs27282Jamestown27283Julian27284Kernersville27285Kernersville27288Eden27289Eden27291Leasburg27292Lexington27293Lexington27294Lexington27295Lexington27298Liberty27299Linwood27301McLeansville27302Mebane27305Milton27306Mount Gilead27310Oak Ridge27311Pelham27312Pittsboro27313Pleasant Garden27314Prospect Hill27315Providence27316Ramseur27317Randleman27320Reidsville27323Reidsville27325Robbins27326Ruffin27330Sanford27331Sanford27332Sanford27340Saxapahaw27341Seagrove27342Sedalia27343Semora27344Siler City27349Snow Camp27350Sophia27351Southmont27355Staley27356Star27357Stokesdale27358Summerfield27359Swepsonville27360Thomasville27361Thomasville27370Trinity27371Troy27373Wallburg27374Welcome27375Wentworth27376West End27377Whitsett27379Yanceyville27401Greensboro27402Greensboro27403Greensboro27404Greensboro27405Greensboro27406Greensboro27407Greensboro27408Greensboro27409Greensboro27410Greensboro27412Greensboro27415Greensboro27416Greensboro27417Greensboro27419Greensboro27420Greensboro27425Greensboro27427Greensboro27429Greensboro27435Greensboro27438Greensboro27455Greensboro27495Greensboro27497Greensboro27498Greensboro27499Greensboro27501Angier27502Apex27503Bahama27504Benson27505Broadway27506Buies Creek27507Bullock27508Bunn27509Butner27510Carrboro27511Cary27512Cary27513Cary27514Chapel Hill27515Chapel Hill27516Chapel Hill27517Chapel Hill27518Cary27519Cary27520Clayton27521Coats27522Creedmoor27523Apex27524Four Oaks27525Franklinton27526Fuquay Varina27527Clayton27528Clayton27529Garner27530Goldsboro27531Goldsboro27532Goldsboro27533Goldsboro27534Goldsboro27536Henderson27537Henderson27539Apex27540Holly Springs27541Hurdle Mills27542Kenly27543Kipling27544Kittrell27545Knightdale27546Lillington27549Louisburg27551Macon27552Mamers27553Manson27555Micro27556Middleburg27557Middlesex27559Moncure27560Morrisville27562New Hill27563Norlina27565Oxford27568Pine Level27569Princeton27570Ridgeway27571Rolesville27572Rougemont27573Roxboro27574Roxboro27576Selma27577Smithfield27581Stem27582Stovall27583Timberlake27584Townsville27586Vaughan27587Wake Forest27588Wake Forest27589Warrenton27591Wendell27592Willow Spring27593Wilsons Mills27594Wise27596Youngsville27597Zebulon27601Raleigh27602Raleigh27603Raleigh27604Raleigh27605Raleigh27606Raleigh27607Raleigh27608Raleigh27609Raleigh27610Raleigh27611Raleigh27612Raleigh27613Raleigh27614Raleigh27615Raleigh27616Raleigh27617Raleigh27619Raleigh27620Raleigh27622Raleigh27623Raleigh27624Raleigh27625Raleigh27626Raleigh27627Raleigh27628Raleigh27629Raleigh27634Raleigh27635Raleigh27636Raleigh27640Raleigh27650Raleigh27656Raleigh27658Raleigh27661Raleigh27668Raleigh27675Raleigh27676Raleigh27690Raleigh27695Raleigh27697Raleigh27698Raleigh27699Raleigh27701Durham27702Durham27703Durham27704Durham27705Durham27706Durham27707Durham27708Durham27709Durham27711Durham27712Durham27713Durham27715Durham27717Durham27722Durham27801Rocky Mount27802Rocky Mount27803Rocky Mount27804Rocky Mount27805Aulander27806Aurora27807Bailey27808Bath27809Battleboro27810Belhaven27811Bellarthur27812Bethel27813Black Creek27814Blounts Creek27815Rocky Mount27816Castalia27817Chocowinity27818Como27819Conetoe27820Conway27821Edward27822Elm City27823Enfield27824Engelhard27825Everetts27826Fairfield27827Falkland27828Farmville27829Fountain27830Fremont27831Garysburg27832Gaston27833Greenville27834Greenville27835Greenville27836Greenville27837Grimesland27839Halifax27840Hamilton27841Hassell27842Henrico27843Hobgood27844Hollister27845Jackson27846Jamesville27847Kelford27849Lewiston Woodville27850Littleton27851Lucama27852Macclesfield27853Margarettsville27855Murfreesboro27856Nashville27857Oak City27858Greenville27860Pantego27861Parmele27862Pendleton27863Pikeville27864Pinetops27865Pinetown27866Pleasant Hill27867Potecasi27868Red Oak27869Rich Square27870Roanoke Rapids27871Robersonville27872Roxobel27873Saratoga27874Scotland Neck27875Scranton27876Seaboard27877Severn27878Sharpsburg27879Simpson27880Sims27881Speed27882Spring Hope27883Stantonsburg27884Stokes27885Swanquarter27886Tarboro27887Tillery27888Walstonburg27889Washington27890Weldon27891Whitakers27892Williamston27893Wilson27894Wilson27895Wilson27896Wilson27897Woodland27906Elizabeth City27907Elizabeth City27909Elizabeth City27910Ahoskie27915Avon27916Aydlett27917Barco27919Belvidere27920Buxton27921Camden27922Cofield27923Coinjock27924Colerain27925Columbia27926Corapeake27927Corolla27928Creswell27929Currituck27930Hertford27932Edenton27935Eure27936Frisco27937Gates27938Gatesville27939Grandy27941Harbinger27942Harrellsville27943Hatteras27944Hertford27946Hobbsville27947Jarvisburg27948Kill Devil Hills27949Kitty Hawk27950Knotts Island27953Manns Harbor27954Manteo27956Maple27957Merry Hill27958Moyock27959Nags Head27960Ocracoke27962Plymouth27964Point Harbor27965Poplar Branch27966Powells Point27967Powellsville27968Rodanthe27969Roduco27970Roper27972Salvo27973Shawboro27974Shiloh27976South Mills27978Stumpy Point27979Sunbury27980Tyner27981Wanchese27982Waves27983Windsor27985Winfall27986Winton28001Albemarle28002Albemarle28006Alexis28007Ansonville28009Badin28010Barium Springs28012Belmont28016Bessemer City28017Boiling Springs28018Bostic28019Caroleen28020Casar28021Cherryville28023China Grove28024Cliffside28025Concord28026Concord28027Concord28031Cornelius28032Cramerton28033Crouse28034Dallas28035Davidson28036Davidson28037Denver28038Earl28039East Spencer28040Ellenboro28041Faith28042Fallston28043Forest City28052Gastonia28053Gastonia28054Gastonia28055Gastonia28056Gastonia28070Huntersville28071Gold Hill28072Granite Quarry28073Grover28074Harris28075Harrisburg28076Henrietta28077High Shoals28078Huntersville28079Indian Trail28080Iron Station28081Kannapolis28082Kannapolis28083Kannapolis28086Kings Mountain28088Landis28089Lattimore28090Lawndale28091Lilesville28092Lincolnton28093Lincolnton28097Locust28098Lowell28101Mc Adenville28102Mc Farlan28103Marshville28104Matthews28105Matthews28106Matthews28107Midland28108Mineral Springs28109Misenheimer28110Monroe28111Monroe28112Monroe28114Mooresboro28115Mooresville28117Mooresville28119Morven28120Mount Holly28123Mount Mourne28124Mount Pleasant28125Mount Ulla28126Newell28127New London28128Norwood28129Oakboro28130Paw Creek28133Peachland28134Pineville28135Polkton28136Polkville28137Richfield28138Rockwell28139Rutherfordton28144Salisbury28145Salisbury28146Salisbury28147Salisbury28150Shelby28151Shelby28152Shelby28159Spencer28160Spindale28163Stanfield28164Stanley28166Troutman28167Union Mills28168Vale28169Waco28170Wadesboro28173Waxhaw28174Wingate28201Charlotte28202Charlotte28203Charlotte28204Charlotte28205Charlotte28206Charlotte28207Charlotte28208Charlotte28209Charlotte28210Charlotte28211Charlotte28212Charlotte28213Charlotte28214Charlotte28215Charlotte28216Charlotte28217Charlotte28218Charlotte28219Charlotte28220Charlotte28221Charlotte28222Charlotte28223Charlotte28224Charlotte28226Charlotte28227Charlotte28228Charlotte28229Charlotte28230Charlotte28231Charlotte28232Charlotte28233Charlotte28234Charlotte28235Charlotte28236Charlotte28237Charlotte28241Charlotte28242Charlotte28243Charlotte28244Charlotte28246Charlotte28247Charlotte28253Charlotte28254Charlotte28255Charlotte28256Charlotte28258Charlotte28260Charlotte28262Charlotte28263Charlotte28265Charlotte28266Charlotte28269Charlotte28270Charlotte28271Charlotte28272Charlotte28273Charlotte28274Charlotte28275Charlotte28277Charlotte28278Charlotte28280Charlotte28281Charlotte28282Charlotte28284Charlotte28285Charlotte28287Charlotte28288Charlotte28289Charlotte28290Charlotte28296Charlotte28297Charlotte28299Charlotte28301Fayetteville28302Fayetteville28303Fayetteville28304Fayetteville28305Fayetteville28306Fayetteville28307Fort Bragg28308Pope Army Airfield28309Fayetteville28310Fort Bragg28311Fayetteville28312Fayetteville28314Fayetteville28315Aberdeen28318Autryville28319Barnesville28320Bladenboro28323Bunnlevel28325Calypso28326Cameron28327Carthage28328Clinton28329Clinton28330Cordova28331Cumberland28332Dublin28333Dudley28334Dunn28335Dunn28337Elizabethtown28338Ellerbe28339Erwin28340Fairmont28341Faison28342Falcon28343Gibson28344Godwin28345Hamlet28347Hoffman28348Hope Mills28349Kenansville28350Lakeview28351Laurel Hill28352Laurinburg28353Laurinburg28355Lemon Springs28356Linden28357Lumber Bridge28358Lumberton28359Lumberton28360Lumberton28362Marietta28363Marston28364Maxton28365Mount Olive28366Newton Grove28367Norman28368Olivia28369Orrum28370Pinehurst28371Parkton28372Pembroke28373Pinebluff28374Pinehurst28375Proctorville28376Raeford28377Red Springs28378Rex28379Rockingham28380Rockingham28382Roseboro28383Rowland28384Saint Pauls28385Salemburg28386Shannon28387Southern Pines28388Southern Pines28390Spring Lake28391Stedman28392Tar Heel28393Turkey28394Vass28395Wade28396Wagram28398Warsaw28399White Oak28401Wilmington28402Wilmington28403Wilmington28404Wilmington28405Wilmington28406Wilmington28407Wilmington28408Wilmington28409Wilmington28410Wilmington28411Wilmington28412Wilmington28420Ash28421Atkinson28422Bolivia28423Bolton28424Brunswick28425Burgaw28428Carolina Beach28429Castle Hayne28430Cerro Gordo28431Chadbourn28432Clarendon28433Clarkton28434Council28435Currie28436Delco28438Evergreen28439Fair Bluff28441Garland28442Hallsboro28443Hampstead28444Harrells28445Holly Ridge28447Ivanhoe28448Kelly28449Kure Beach28450Lake Waccamaw28451Leland28452Longwood28453Magnolia28454Maple Hill28455Nakina28456Riegelwood28457Rocky Point28458Rose Hill28459Shallotte28460Sneads Ferry28461Southport28462Supply28463Tabor City28464Teachey28465Oak Island28466Wallace28467Calabash28468Sunset Beach28469Ocean Isle Beach28470Shallotte28472Whiteville28478Willard28479Winnabow28480Wrightsville Beach28501Kinston28502Kinston28503Kinston28504Kinston28508Albertson28509Alliance28510Arapahoe28511Atlantic28512Atlantic Beach28513Ayden28515Bayboro28516Beaufort28518Beulaville28519Bridgeton28520Cedar Island28521Chinquapin28522Comfort28523Cove City28524Davis28525Deep Run28526Dover28527Ernul28528Gloucester28529Grantsboro28530Grifton28531Harkers Island28532Havelock28533Cherry Point28537Hobucken28538Hookerton28539Hubert28540Jacksonville28541Jacksonville28542Camp Lejeune28543Tarawa Terrace28544Midway Park28545Mccutcheon Field28546Jacksonville28547Camp Lejeune28551La Grange28552Lowland28553Marshallberg28554Maury28555Maysville28556Merritt28557Morehead City28560New Bern28561New Bern28562New Bern28563New Bern28564New Bern28570Newport28571Oriental28572Pink Hill28573Pollocksville28574Richlands28577Sealevel28578Seven Springs28579Smyrna28580Snow Hill28581Stacy28582Stella28583Stonewall28584Swansboro28585Trenton28586Vanceboro28587Vandemere28589Williston28590Winterville28594Emerald Isle28601Hickory28602Hickory28603Hickory28604Banner Elk28605Blowing Rock28606Boomer28607Boone28609Catawba28610Claremont28611Collettsville28612Connelly Springs28613Conover28615Creston28616Crossnore28617Crumpler28618Deep Gap28619Drexel28621Elkin28622Elk Park28623Ennice28624Ferguson28625Statesville28626Fleetwood28627Glade Valley28628Glen Alpine28629Glendale Springs28630Granite Falls28631Grassy Creek28634Harmony28635Hays28636Hiddenite28637Hildebran28638Hudson28640Jefferson28641Jonas Ridge28642Jonesville28643Lansing28644Laurel Springs28645Lenoir28646Linville28647Linville Falls28649Mc Grady28650Maiden28651Millers Creek28652Minneapolis28653Montezuma28654Moravian Falls28655Morganton28656North Wilkesboro28657Newland28658Newton28659North Wilkesboro28660Olin28661Patterson28662Pineola28663Piney Creek28664Plumtree28665Purlear28666Icard28667Rhodhiss28668Roaring Gap28669Roaring River28670Ronda28671Rutherford College28672Scottville28673Sherrills Ford28675Sparta28676State Road28677Statesville28678Stony Point28679Sugar Grove28680Morganton28681Taylorsville28682Terrell28683Thurmond28684Todd28685Traphill28687Statesville28688Turnersburg28689Union Grove28690Valdese28691Valle Crucis28692Vilas28693Warrensville28694West Jefferson28697Wilkesboro28698Zionville28699Scotts28701Alexander28702Almond28704Arden28705Bakersville28707Balsam28708Balsam Grove28709Barnardsville28710Bat Cave28711Black Mountain28712Brevard28713Bryson City28714Burnsville28715Candler28716Canton28717Cashiers28718Cedar Mountain28719Cherokee28720Chimney Rock28721Clyde28722Columbus28723Cullowhee28724Dana28725Dillsboro28726East Flat Rock28727Edneyville28728Enka28729Etowah28730Fairview28731Flat Rock28732Fletcher28733Fontana Dam28734Franklin28735Gerton28736Glenville28737Glenwood28738Hazelwood28739Hendersonville28740Green Mountain28741Highlands28742Horse Shoe28743Hot Springs28744Franklin28745Lake Junaluska28746Lake Lure28747Lake Toxaway28748Leicester28749Little Switzerland28750Lynn28751Maggie Valley28752Marion28753Marshall28754Mars Hill28755Micaville28756Mill Spring28757Montreat28758Mountain Home28759Mills River28760Naples28761Nebo28762Old Fort28763Otto28765Penland28766Penrose28768Pisgah Forest28770Ridgecrest28771Robbinsville28772Rosman28773Saluda28774Sapphire28775Scaly Mountain28776Skyland28777Spruce Pine28778Swannanoa28779Sylva28781Topton28782Tryon28783Tuckasegee28784Tuxedo28785Waynesville28786Waynesville28787Weaverville28788Webster28789Whittier28790Zirconia28791Hendersonville28792Hendersonville28793Hendersonville28801Asheville28802Asheville28803Asheville28804Asheville28805Asheville28806Asheville28810Asheville28813Asheville28814Asheville28815Asheville28816Asheville28901Andrews28902Brasstown28903Culberson28904Hayesville28905Marble28906Murphy28909Warne
What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.
Questions
How many water systems in North Carolina have violations?
481 of 1,960 active community water systems in North Carolina reported at least one health-based violation since 2016 (EPA SDWIS).
What is the radon risk in North Carolina?
81 ZIP codes are in EPA radon zone 1 (highest potential), 316 in zone 2 and 675 in zone 3. EPA recommends testing every home.