Chlorine (MRDL) violations in North Carolina
150 active public water systems in North Carolina had a Chlorine (MRDL) violation in the past three years, 18 of them in the latest quarter of EPA's data. What Chlorine (MRDL) is and why it matters.
Health effects: Acute high-dose exposure to chlorinated water can cause eye and nose irritation, stomach discomfort, and nausea. Chronic exposure above the MRDL is primarily a concern because elevated chlorine accelerates formation of trihalomethanes and haloacetic acids, which are associated with increased cancer risk over time.
Systems with a Chlorine (MRDL) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Rockbridge S/d Knightdale · Wake County |
1,042 | 9 | 3 | |
|
Marble Community Wtr System Marble · Cherokee County |
999 | 5 | 1 | |
|
Peachland Water System Peachland · Anson County |
770 | 2 | 0 | |
|
Southern Trace S/d Garner · Wake County |
485 | 8 | 4 | |
|
Northeast Rowan County Water System Salisbury · Rowan County |
471 | 2 | 0 | |
|
Micro, Town of Micro · Johnston County |
470 | 4 | 2 | |
|
Rock Creek MH Village NO 2 Whitsett · Guilford County |
305 | 8 | 1 | |
|
Horseshoe Mobile Estates Garner · Wake County |
255 | 5 | 1 | |
|
Orange MHP Durham · Orange County |
144 | 4 | 1 | |
|
Hill Top MHP Chapel Hill · Orange County |
139 | 4 | 1 | |
|
Braxton Culler Sophia · Randolph County |
124 | 2 | 0 | |
|
Oak Grove of Knightdale Knightdale · Wake County |
122 | 3 | 0 | |
|
Cedar Park MHP Greensboro · Guilford County |
112 | 4 | 0 | |
|
Wood`s MHP Durham · Orange County |
89 | 3 | 0 | |
|
Lineberry MHP Graham · Alamance County |
82 | 4 | 1 | |
|
Gideon Grove TP NO 1 Stokesdale · Rockingham County |
71 | 5 | 1 | |
|
Dot-Nc State Shipyard Manns Harbor · Dare County |
60 | 3 | 1 | |
|
White Rabbit Child Care & PS Creedmoor · Granville County |
52 | 7 | 2 | |
|
Burlington, City of Burlington · Alamance County |
61,365 | 2 | 0 | |
|
Flowers Plantation Clayton · Johnston County |
12,809 | 2 | 0 | |
|
Archdale, City of Archdale · Randolph County |
12,700 | 3 | 0 | |
|
Black Mountain, Town of Black Mountain · Buncombe County |
11,976 | 6 | 0 | |
|
Spring Lake, Town of Spring Lake · Cumberland County |
11,725 | 4 | 1 | |
|
Central Nash Water & Sewer Nashville · Nash County |
7,675 | 4 | 0 | |
|
Landis, Town of China Grove · Rowan County |
5,510 | 4 | 0 | |
|
Murphy, Town of Murphy · Cherokee County |
4,498 | 3 | 1 | |
|
Northampton--Lake Gaston Lake Gaston · Northampton County |
3,984 | 4 | 0 | |
|
Martin CO Water & Sewer Dist 2 Williamston · Martin County |
2,746 | 5 | 0 | |
|
Old Settlers Water System Topsail Beach · Onslow County |
2,677 | 3 | 0 | |
|
New Light Master Wake Forest · Wake County |
2,619 | 4 | 0 | |
|
Columbus Town of Columbus · Polk County |
2,489 | 10 | 3 | |
|
Ossipee Town of Elon · Alamance County |
2,390 | 3 | 0 | |
|
Pinetops, Town of Pinetops · Edgecombe County |
2,340 | 2 | 0 | |
|
Martin CO Water & Sewer Dist I Williamston · Martin County |
2,245 | 4 | 0 | |
|
Northampton--Progressive Garysburg · Northampton County |
2,228 | 5 | 1 | |
|
Northern Nash Water District Dortches · Nash County |
1,694 | 4 | 1 | |
|
Princeton, Town of Princeton · Johnston County |
1,653 | 5 | 2 | |
|
Denton, Town of Denton · Davidson County |
1,632 | 5 | 0 | |
|
Vance CO Water District Phase 1 Henderson · Vance County |
1,580 | 4 | 0 | |
|
Mount Gilead, Town of Mt Gilead · Montgomery County |
1,463 | 5 | 1 | |
|
Vance CO Water District Phase 2 Henderson · Vance County |
1,376 | 5 | 1 | |
|
Vance County Water District Kittrell Kittrell · Vance County |
1,282 | 5 | 1 | |
|
Fremont, Town of Fremont · Wayne County |
1,265 | 6 | 0 | |
|
Ansonville Water System Ansonville · Anson County |
1,262 | 5 | 2 | |
|
Goldston-Gulf Sanitary Dist Goldston · Chatham County |
1,187 | 4 | 0 | |
|
Maysville, Town of Maysville · Jones County |
1,100 | 4 | 1 | |
|
Laurinburg-Maxton Airport Maxton · Scotland County |
1,049 | 2 | 1 | |
|
Figure 8 Island Wilmington · New Hanover County |
999 | 4 | 1 | |
|
Parkton, Town of Parkton · Robeson County |
963 | 1 | 0 | |
|
Pink Hill, Town of Pink Hill · Lenoir County |
950 | 3 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Chlorine (MRDL), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Chlorine (MRDL) alone.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The North Carolina records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.