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| NC | ABERDEEN | ABERDEEN, TOWN OF | 37429 | 9109447012 |
| NC | APEX | CARY/APEX WATER TREATMENT PLANT | 37603 | (919)362-5502 |
| NC | APEX | TRIRIVER WATER, JORDAN LAKE WATER FILTRATION | 37401 | (919)303-0055 |
| NC | ASHEBORO | ASHEBORO WATER TREATMENT PLANT | 37614 | 3366261242 |
| NC | ASHEVILLE | BUNCOMBE COUNTY HEALTH DEPT. | 37505 | (828)250-5124 |
| NC | BAKERSVILLE | TOE RIVER HEALTH DISTRICT - MITCHELL COUNTY | 37548 | 8286882371 |
| NC | BELMONT | BELMONT WATER TREATMENT PLANT | 37651 | 7049012077 |
| NC | BESSEMER CITY | BESSEMER CITY WATER TREATMENT PLANT | 37678 | 7046295684 |
| NC | BLACK MOUNTAIN | ASHEVILLE,CITY OF - NORTH FORK WATER PLANT | 37609 | (828)669-8569 |
| NC | BOLIVIA | BRUNSWICK COUNTY HEALTH DEPARTMENT | 37538 | (910)253-2261 |
| NC | BOONE | APPALACHIAN STATE UNIVERSITY | 37611 | (828)262-3197 |
| NC | BOONE | BOONE WATER TREATMENT | 37675 | (828)262-4570 |
| NC | BREVARD | BREVARD WATER TREATMENT PLANT | 37671 | (828)884-2770 |
| NC | BREVARD | TRANSYLVANIA COUNTY ENV. HEALTH | 37545 | 8288843139 |
| NC | BROWN SUMMIT | GREENSBORO - LAKE TOWNSEND WATER TRTMT PLANT | 37632 | 3363737649 |
| NC | BRYSON CITY | BRYSON CITY, DEEP CREEK WATER PLANT | 37782 | (828)488-1004 |
| NC | BURLINGTON | BURLINGTON LABORATORY SERVICES | 37612 | (336)222-5133 |
| NC | BUTNER | SOUTH GRANVILLE WASA | 37661 | (919)575-3118 |
| NC | CAMDEN | SOUTH CAMDEN WATER & SEWER DISTRICT | 37428 | 2523351216 |
| NC | CAMP LEJEUNE | US MARINE CORPS BASE | 37807 | 9104515977 |
| NC | CANTON | CANTON WATER TREATMENT PLANT | 37652 | (828)646-3414 |
| NC | CAROLINA BEACH | CAROLINA BEACH, TOWN OF | 37414 | 9106363377 |
| NC | CARRBORO | ORANGE WATER AND SEWER AUTHORITY | 37669 | 9195374209 |
| NC | CHAPEL HILL | DURHAM, CITY OF - LABORATORY SERVICES | 37658 | 9195604381 |
| NC | CHARLOTTE | CHARLOTTE WATER - ENVIRONMENTAL LAB SERVICES | 37417 | 7044936349 |
| NC | CHARLOTTE | CHARLOTTE,CITY OF - FRANKLIN WATER PLANT | 37605 | 7043992426 |
| NC | CHEROKEE | CHEROKEE WATER LABORATORY | 37407 | 8283596751 |
| NC | CHERRY POINT | US MCAS CHERRY POINT---FAC. MAINT. DEPT. | 37800 | 2524664599 |
| NC | CHERRYVILLE | CHERRYVILLE WATER PLANT | 37629 | (704)435-1738 |
| NC | CLEMMONS | WINSTON SALEM, CITY OF - NEILSON WATER PLANT | 37621 | 3363977720 |
| NC | CLINTON | CLINTON, CITY OF--NORMAN H LARKINS WPCF | 37646 | (910)592-1961 |
| NC | CLYDE | HAYWOOD COUNTY HEALTH & HUMAN SERVICES AGENCY | 37509 | 8283562261 |
| NC | CONCORD | CONCORD-CODDLE CREEK WTPM | 37613 | 7049205736 |
| NC | CONCORD | WATER & SEWER AUTHORITY OF CABARRUS COUNTY | 37696 | (704)788-4164 |
| NC | COROLLA | SOUTHERN OUTER BANKS WATER SYSTEM | 37410 | 2524532620 |
| NC | DALLAS | DALLAS WATER TREATMENT PLANT | 37687 | (704)922-1309 |
| NC | DENVER | LINCOLN COUNTY WATER TREATMENT PLANT | 37697 | (704)483-7070 |
| NC | DOBSON | SURRY COUNTY HEALTH DEPT. | 37540 | (336)401-8325 |
| NC | DURHAM | DURHAM COUNTY HEALTH DEPARTMENT | 37523 | 9195607975 |
| NC | EDEN | EDEN WATER FILTRATION PLANT | 37667 | (336)627-1009 |
| NC | ELIZABETH CITY | ELIZABETH CITY WATER TREATMENT PLANT | 37668 | 2523352196 |
| NC | ERWIN | DUNN WATER TREATMENT PLANT | 37662 | (910)897-5129 |
| NC | FAYETTEVILLE | FAYETTEVILLE, CITY OF - PWC - CROSS CREEK WRF | 37645 | (910)223-4698 |
| NC | FOREST CITY | FOREST CITY WATER TREATMENT PLANT | 37680 | (828)248-5215 |
| NC | FORT BRAGG | US ARMY - FORT BRAGG DPW | 37809 | 9104329760 |
| NC | FORT BRAGG | US ARMY FORT BRAGG ENVIRONMENTAL HEALTH | 37803 | 9103965882 |
| NC | FRANKLIN | FRANKLIN WWTP, TOWN OF | 37432 | 8285244492 |
| NC | FRANKLIN | MACON COUNTY HEALTH DEPT. | 37522 | 8283492447 |
| NC | GASTONIA | GASTON COUNTY HEALTH DEPT. | 37507 | (704)853-5200 |
| NC | GASTONIA | GASTONIA - TWO RIVERS UTILITIES | 37602 | 7048691068 |
| NC | GASTONIA | GASTONIA, CITY OF - CROWDERS CREEK LAB | 37422 | 7048546658 |
| NC | GOLDSBORO | GOLDSBORO WATER TREATMENT | 37630 | (919)734-3757 |
| NC | GRANITE FALLS | LENOIR, CITY OF - LENOIR RHODHISS WATER PLANT | 37634 | 8287574460 |
| NC | GREENSBORO | GREENSBORO - MITCHELL WATER TREATMENT PLANT | 37631 | 3363737903 |
| NC | GREENSBORO | GUILFORD COUNTY HEALTH DEPT. | 37511 | 3366414607 |
| NC | GREENVILLE | GREENVILLE WATER TREATMENT PLANT | 37600 | (252)551-1563 |
| NC | HAYESVILLE | CLAY COUNTY HEALTH DEPARTMENT | 37535 | (828)389-8052 |
| NC | HENDERSON | HENDERSON - KERR LAKE REGIONAL WATER SYSTEM | 37660 | (252)438-2142 |
| NC | HENDERSONVILLE | HENDERSON COUNTY HEALTH DEPARTMENT | 37543 | 8286946109 |
| NC | HICKORY | CATAWBA COUNTY HEALTH DEPARTMENT | 37532 | (828)695-5815 |
| NC | HICKORY | HICKORY WATER TREATMENT PLANT | 37637 | (828)323-7530 |
| NC | HIGH POINT | HIGH POINT WATER QUALITY LABORATORY | 37617 | 3368833098 |
| NC | HILLSBOROUGH | HILLSBOROUGH WATER TREATMENT PLANT | 37673 | (919)732-3621 |
| NC | HOLLY SPRINGS | HOLLY SPRINGS ENV. COMPLIANCE LABORATORY | 37408 | 9195572907 |
| NC | JACKSON | NORTHAMPTON COUNTY HEALTH DEPT. | 37508 | (252)534-5841 |
| NC | JACKSONVILLE | JACKSONVILLE, CITY OF | 37672 | 9109383620 |
| NC | JACKSONVILLE | ONSLOW WATER AND SEWER AUTHORITY | 37404 | 9109377536 |
| NC | JEFFERSON | JEFFERSON WATER PLANT | 37628 | (336)982-2828 |
| NC | K.D.H. | DARE COUNTY REGIONAL R.O. WATER SYSTEM | 37688 | 2524755808 |
| NC | KANNAPOLIS | KANNAPOLIS, CITY OF | 37802 | 7049204249 |
| NC | KINGS MOUNTAIN | KINGS MOUNTAIN WATER TREATMENT PLANT | 37682 | 7047347040 |
| NC | KINSTON | KINSTON, CITY OF--WATER RECLAMATION FACILITY | 37418 | 2529393306 |
| NC | LAGRANGE | NEUSE REGIONAL WASA | 37419 | 2525222567 |
| NC | LAURINBURG | LAURINBURG WATER TREATMENT PLANT | 37655 | (910)277-0214 |
| NC | LAWNDALE | CLEVELAND COUNTY SANITARY DISTRICT | 37679 | 7044663696 |
| NC | LELAND | BRUNSWICK CO. WATER SYSTEM - NORTHWEST WTP | 37686 | (910)371-3490 |
| NC | LEXINGTON | LEXINGTON - DAVIDSON WATER PLANT | 37626 | (336)787-5800 |
| NC | LEXINGTON | LEXINGTON WATER TREATMENT PLANT | 37615 | (336)248-5820 |
| NC | LILESVILLE | ANSON COUNTY WATER SYSTEM | 37654 | (704)848-4849 |
| NC | LILLINGTON | HARNETT COUNTY PUBLIC UTILITIES - METRO WP | 37638 | 9108937575 |
| NC | LINCOLNTON | LINCOLN COUNTY HEALTH DEPARTMENT | 37537 | (704)736-8636 |
| NC | LINCOLNTON | LINCOLNTON, CITY OF - SOUTH FORK WATER PLANT | 37623 | (704)736-8970 |
| NC | LOUISBURG | FRANKLIN COUNTY HEALTH DEPARTMENT | 37521 | 9194962533 |
| NC | LUMBERTON | LUMBERTON WWTP - PUBLIC UTILITIES LAB | 37647 | (910)671-3858 |
| NC | MADISON | MADISON WATER TREATMENT PLANT | 37683 | (336)427-3971 |
| NC | MANTEO | SHELLFISH SANITATION LAB- MANTEO | 37536 | 2528088153 |
| NC | MARION | MARION WATER TREATMENT PLANT | 37691 | (828)652-2428 |
| NC | MAXTON | ROBESON COUNTY WATER SYSTEM | 37677 | (910)844-5611 |
| NC | MAYODAN | MAYODAN WTP | 37412 | 3364273339 |
| NC | MEBANE | GRAHAM-MEBANE WATER PLANT | 37639 | (336)578-3264 |
| NC | MILLS RIVER | ASHEVILLE- MILLS RIVER REGIONAL WTP | 37405 | (828)232-4570 |
| NC | MILLS RIVER | HENDERSONVILLE WATER TREATMENT PLANT | 37636 | (828)891-7779 |
| NC | MONROE | MONROE, CITY OF - JOHN GLEN WTP | 37650 | 7042824668 |
| NC | MONROE | UNION COUNTY HEALTH DEPARTMENT | 37517 | (704)296-4851 |
| NC | MONROE | YADKIN RIVER WATER TREATMENT PLANT | 37431 | 9802599140 |
| NC | MOORESVILLE | MOORESVILLE WATER TREATMENT PLANT | 37424 | 7046623186 |
| NC | MOREHEAD CITY | CARTERET COUNTY ENVIRONMENTAL HEALTH | 37542 | 2527288499 |
| NC | MOREHEAD CITY | MOREHEAD CITY WATER TREATMENT PLANT | 37643 | 2527266237 |
| NC | MOREHEAD CITY | SHELLFISH SANITATION LAB-MOREHEAD CITY | 37531 | 2528088153 |
| NC | MORGANTON | MORGANTON, CITY OF - CATAWBA RIVER WATER PLNT | 37627 | (828)584-1460 |
| NC | MOUNT HOLLY | MOUNT HOLLY WATER TREATMENT PLANT | 37642 | (704)822-2928 |
| NC | MT AIRY | MOUNT AIRY - F.G. DOGGETT WATER PLANT | 37692 | (336)786-3595 |
| NC | MT GILEAD | MONTGOMERY COUNTY WTP | 37684 | 9104396197 |
| NC | MURPHY | CHEROKEE COUNTY HEALTH DEPT. | 37513 | 8288371215 |
| NC | N. WILKESBORO | NORTH WILKESBORO WATER TREATMENT PLANT | 37641 | (336)838-2371 |
| NC | NAGS HEAD | NAGS HEAD WATER PLANT | 37644 | 2524494212 |
| NC | NASHVILLE | NASH COUNTY HEALTH DEPARTMENT | 37529 | (252)459-1340 |
| NC | NEW BERN | CRAVEN COUNTY HEALTH DEPT.-ENV HEALTH LAB | 37512 | 2526364920 |
| NC | NEW BERN | NEW BERN, CITY OF, WATER TREATMENT PLANT | 37664 | 2526397547 |
| NC | NEW LONDON | ALBEMARLE WATER PLANT | 37616 | 7044635944 |
| NC | NEWLAND | TOE RIVER HEALTH DISTRICT - AVERY COUNTY | 37547 | 8287336031 |
| NC | NEWTON | NEWTON WATER TREATMENT PLANT | 37690 | 8286954312 |
| NC | PEMBROKE | PEMBROKE, TOWN OF, WASTE TREATMENT PLANT | 37653 | 9105212989 |
| NC | PFAFFTOWN | WINSTON-SALEM, CITY OF--SWANN PLANT | 37409 | 3369451179 |
| NC | PINEBLUFF | SOUTHERN PINES WATER TREATMENT PLANT | 37665 | (910)281-4719 |
| NC | RAEFORD | RAEFORD, CITY OF | 37420 | 9108754931 |
| NC | RALEIGH | NC STATE LAB OF PUBLIC HEALTH | 37501 | (919)733-7308 |
| NC | RALEIGH | WAKE COUNTY HUMAN SERVICES-PUBLIC HEALTH CTR. | 37503 | 9192504437 |
| NC | RANDLEMAN | PIEDMONT TRIAD REGIONAL WATER AUTHORITY | 37423 | 3364985510 |
| NC | REIDSVILLE | REIDSVILLE WATER PLANT | 37663 | 3363424002 |
| NC | ROANOKE RAPIDS | ROANOKE RAPIDS SANITARY DISTRICT | 37649 | 2525373319 |
| NC | ROCKINGHAM | RICHMOND COUNTY WATER TREATMENT PLANT | 37681 | (910)997-8339 |
| NC | ROCKY MOUNT | ROCKY MOUNT TAR RIVER WWTP | 37607 | 2529721408 |
| NC | ROXBORO | ROXBORO WATER TREATMENT PLANT | 37657 | (336)599-4906 |
| NC | RUTHERFORDTON | BROAD RIVER WATER AUTHORITY | 37676 | (828)287-7776 |
| NC | SALISBURY | SALISBURY WATER TREATMENT PLANT | 37618 | 7042162731 |
| NC | SANFORD | SANFORD WATER PLANT | 37625 | 9197771804 |
| NC | SHELBY | SHELBY WATER PLANT | 37633 | 7044846885 |
| NC | SMITHFIELD | JOHNSTON COUNTY WATER PLANT | 37402 | 9199384744 |
| NC | SMITHFIELD | SMITHFIELD WATER TREATMENT PLANT | 37421 | 9199342661 |
| NC | STATESVILLE | STATESVILLE WATER TREATMENT PLANT | 37620 | (704)878-3441 |
| NC | SUPPLY | WEST BRUNSWICK REGIONAL COMPLIANCE LAB | 37430 | 9102532841 |
| NC | SYLVA | JACKSON COUNTY HEALTH DEPT. | 37515 | 8285878247 |
| NC | SYLVA | TUCKASEIGEE WATER & SEWER AUTHORITY | 37400 | (828)293-3243 |
| NC | TARBORO | TARBORO WATER TREATMENT PLANT | 37610 | (252)641-4284 |
| NC | THOMASVILLE | THOMASVILLE WATER TREATMENT PLANT | 37624 | 3364754247 |
| NC | TOBACCOVILLE | KING, CITY OF - KING DISTRICT WATER SYSTEM | 37659 | 3369248363 |
| NC | TRYON | TRYON WATER PLANT | 37689 | (828)859-9525 |
| NC | VALDESE | VALDESE WATER TREATMENT PLANT | 37619 | 8288746788 |
| NC | WAKE FOREST | RALEIGH, CITY OF - PUBLIC UTILITIES DEPT. | 37604 | 9199963178 |
| NC | WASHINGTON | WASHINGTON, CITY OF - WASHINGTON WATER PLANT | 37608 | (252)975-9310 |
| NC | WAYNESVILLE | WAYNESVILLE WATER TREATMENT PLANT | 37635 | 8288207270 |
| NC | WEAVERVILLE | WOODFIN WATER PLANT | 37416 | 8286581714 |
| NC | WHITEVILLE | WHITEVILLE, CITY OF | 37427 | 9106425818 |
| NC | WILKESBORO | WILKESBORO WATER TREATMENT PLANT | 37698 | (336)838-4631 |
| NC | WILMINGTON | CAPE FEAR PUBLIC UTILITY AUTHORITY | 37648 | 9103326558 |
| NC | WILMINGTON | NEW HANOVER COUNTY HEALTH DEPT. | 37502 | 9107986642 |
| NC | WILMINGTON | PENDER COUNTY UTILITIES - WTP | 37426 | 9106633639 |
| NC | WILMINGTON | SHELLFISH SANITATION LAB-Wilmington | 37534 | 9107967329 |
| NC | WILSON | WILSON, CITY OF--WIGGINS MILL WTP | 37640 | (252)399-2376 |
| NC | YADKINVILLE | YADKINVILLE WATER LABORATORY | 37674 | (336)679-2184 |
