Chlorine (MRDL) violations in West Virginia
135 active public water systems in West Virginia had a Chlorine (MRDL) violation in the past three years, 20 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 |
|---|---|---|---|---|
|
Pleasants CO PSD St. Marys · Pleasants County |
2,357 | 6 | 2 | |
|
Greater Harrison PSD Quiet Dell Nutter Fort · Harrison County |
2,328 | 6 | 0 | |
|
Elizabeth Water Dept Elizabeth · Wirt County |
2,289 | 6 | 3 | |
|
Lincoln PSD Route 3 Griffithsville · Lincoln County |
2,226 | 8 | 4 | |
|
VA Medical Center Martinsburg · Berkeley County |
2,175 | 4 | 0 | |
|
Mingo County PSD Naugatuck Naugatuck · Mingo County |
2,159 | 10 | 5 | |
|
Logan CO P S D Crawley Creek Logan · Logan County |
2,145 | 8 | 4 | |
|
West Union, Town of West Union · Doddridge County |
1,895 | 4 | 1 | |
|
Mason Water Dept Mason (rr Name Mason City) · Mason County |
1,679 | 6 | 3 | |
|
New Haven Water Dept New Haven · Mason County |
1,649 | 8 | 2 | |
|
McDowell County PSD Maybeury Maybeury · McDowell County |
1,648 | 5 | 2 | |
|
Gary City of Gary · McDowell County |
1,633 | 13 | 5 | |
|
Fort Gay Water Works Fort Gay (cassville) · Wayne County |
1,600 | 8 | 5 | |
|
Rainelle Water Dept Rainelle · Greenbrier County |
1,381 | 8 | 3 | |
|
Paw Paw Route 19 PSD Paw Paw · Marion County |
1,257 | 7 | 2 | |
|
Clay Water Dept Clay · Clay County |
1,232 | 10 | 2 | |
|
Mount Zion P S D Grantsville · Calhoun County |
1,163 | 8 | 5 | |
|
Constellium Rolled Products LLC Ravenswood · Jackson County |
1,100 | 3 | 1 | |
|
Coons Run PSD Adamsville, Francis · Harrison County |
1,059 | 6 | 0 | |
|
I Heart Church Bradley · Raleigh County |
1,000 | 6 | 3 | |
|
Wvaw the Mountain Water System Harpers Ferry · Jefferson County |
976 | 4 | 1 | |
|
Fairview Town of Fairview · Marion County |
958 | 6 | 5 | |
|
Tri County Clarksburg Harrison County |
919 | 7 | 3 | |
|
Grantsville Municipal Grantsville · Calhoun County |
880 | 8 | 1 | |
|
Piedmont Municipal Wtr Wks Piedmont · Mineral County |
847 | 11 | 5 | |
|
Thomas City of Thomas · Tucker County |
753 | 8 | 2 | |
|
Rowlesburg Water Works Rowlesburg · Preston County |
680 | 9 | 2 | |
|
Mingo CO PSD Ragland District Ragland · Mingo County |
621 | 8 | 4 | |
|
Pine Grove Water Pine Grove · Wetzel County |
620 | 11 | 5 | |
|
Valley Grove Water Dept Valley Grove · Ohio County |
610 | 4 | 1 | |
|
Mill Creek Water Dept Mill Creek · Randolph County |
591 | 8 | 4 | |
|
Paw Paw Water Works Paw Paw · Morgan County |
524 | 9 | 2 | |
|
Justice PSD Justice · Mingo County |
504 | 7 | 4 | |
|
Camden on Gauley Craigsville Camden-on-gauley (corp/rr Name · Webster County |
502 | 8 | 3 | |
|
Reedy Water Service Town of Reedy · Roane County |
480 | 7 | 5 | |
|
Harman Town of Harman · Randolph County |
456 | 7 | 0 | |
|
Blue Ridge Elementary Harpers Ferry · Jefferson County |
455 | 8 | 2 | |
|
Page Jackson Solar Elem Charles Town · Jefferson County |
450 | 6 | 2 | |
|
Westlake Chemical New Martinsville · Marshall County |
435 | 2 | 1 | |
|
South Jefferson Elementary Summit Point · Jefferson County |
424 | 7 | 2 | |
|
Central Hampshire PSD RT 28 Romney · Hampshire County |
388 | 6 | 3 | |
|
Mingo County PSD Lick Creek Rawl · Mingo County |
380 | 7 | 4 | |
|
Cairo Water Department Cairo · Ritchie County |
339 | 5 | 2 | |
|
Pocahontas County High School Marlinton · Pocahontas County |
334 | 10 | 3 | |
|
Covestro New Martinsville · Marshall County |
300 | 8 | 0 | |
|
Eastern Panhandle Preparatory Academy Kearneysville · Jefferson County |
300 | 6 | 2 | |
|
Denmar Correctional Center Hillsboro · Pocahontas County |
297 | 2 | 0 | |
|
Green Bank School Green Bank · Pocahontas County |
293 | 5 | 2 | |
|
Mingo County PSD Marrowbone Lenore · Mingo County |
292 | 7 | 4 | |
|
Rainelle Water Treatment Plant 2 Rainelle · Greenbrier County |
290 | 4 | 2 |
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 West Virginia 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.