Chlorine (MRDL) violations in New Mexico
103 active public water systems in New Mexico had a Chlorine (MRDL) violation in the past three years, 4 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 |
|---|---|---|---|---|
|
Russells Endee Truck and Travel Ctr 2 Glenrio · Quay County |
475 | 1 | 0 | |
|
Hillsboro Mdwca Hillsboro · Sierra County |
172 | 2 | 0 | |
|
Loma Escondida Water Association Belen · Valencia County |
84 | 6 | 5 | |
|
Lea County Electric Cooperative INC Lovington · Lea County |
50 | 5 | 1 | |
|
Dona Ana Mdwca Dona Ana · Doña Ana County |
16,987 | 4 | 2 | |
|
Deming Municipal Water System Deming · Luna County |
16,788 | 3 | 1 | |
|
Moongate West Organ · Doña Ana County |
13,362 | 2 | 0 | |
|
Belen Water System Belen · Valencia County |
10,830 | 9 | 3 | |
|
Moongate Water System Organ · Doña Ana County |
9,170 | 2 | 0 | |
|
Anthony W&sd Anthony · Doña Ana County |
8,691 | 3 | 0 | |
|
Cannon Air Force Base Water System Cannon Afb · Curry County |
7,832 | 6 | 0 | |
|
Jal Water Supply System Jal · Lea County |
5,500 | 2 | 0 | |
|
Otis Mdwca Carlsbad · Eddy County |
4,464 | 7 | 2 | |
|
Cloudcroft Water System Cloudcroft · Otero County |
2,865 | 3 | 0 | |
|
Glorieta Camps Glorieta · Santa Fe County |
2,700 | 2 | 0 | |
|
Ruidoso Downs Water System Ruidoso Downs · Lincoln County |
2,146 | 2 | 0 | |
|
Agua Sana Wua Hernandez · Rio Arriba County |
1,514 | 5 | 1 | |
|
Jemez Springs Dwua Jemez Springs · Sandoval County |
1,385 | 4 | 0 | |
|
San Antonio Mdwca San Antonio · Socorro County |
1,344 | 3 | 1 | |
|
Canoncito Canoncito · County |
1,326 | 6 | 3 | |
|
Twin Forks Mdwca Mayhill · Otero County |
1,274 | 4 | 1 | |
|
LA Union Mds & WA Anthony · Doña Ana County |
1,177 | 2 | 0 | |
|
Carrizozo Water System Carrizozo · Lincoln County |
1,136 | 7 | 1 | |
|
Mora Mdwca & Swa Mora · Mora County |
1,100 | 3 | 1 | |
|
San Rafael Water & Sanitation District San Rafael · Cibola County |
1,060 | 5 | 2 | |
|
Crownpoint Boarding School Bia Crownpoint Boarding School · County |
1,024 | 4 | 1 | |
|
Pinehill Community and School Ramah, Pinehill · County |
1,007 | 5 | 0 | |
|
Tatum Municipal Water System Tatum · Lea County |
948 | 4 | 1 | |
|
Chamita Mdwca Chamita · Rio Arriba County |
902 | 6 | 1 | |
|
Cds Rainmakers Util LLC Rancho Ruidoso Alto · Lincoln County |
877 | 4 | 0 | |
|
Leasburg Mdwca Radium Springs · Doña Ana County |
831 | 3 | 0 | |
|
Alamo-Alamo Community Alamo · County |
785 | 4 | 2 | |
|
Thoreau High School Thoreau High School Compound · County |
746 | 5 | 1 | |
|
Pena Blanca Water & Sanitation District Pena Blanca · Sandoval County |
700 | 6 | 1 | |
|
Alamo Navajo Community School Bia Alamo · County |
600 | 5 | 1 | |
|
Canoncito Community Day School Bia Canoncito · County |
437 | 4 | 2 | |
|
Algodones Wua Algodones · Sandoval County |
416 | 7 | 4 | |
|
Jemez Valley Public Schools Jemez Springs · Sandoval County |
350 | 7 | 2 | |
|
Ski Apache Ruidoso · Lincoln County |
350 | 6 | 2 | |
|
Chuska Community Boarding School Bia Tohatchi · County |
348 | 4 | 1 | |
|
Waterfall Community Wua Cloudcroft · Otero County |
342 | 3 | 0 | |
|
Tierra Amarilla Mdwca Tierra Amarilla · Rio Arriba County |
340 | 4 | 2 | |
|
Lincoln Hills Water Co-Op Alto · Lincoln County |
338 | 6 | 3 | |
|
Cordova Mdwca Cordova · Rio Arriba County |
325 | 7 | 2 | |
|
Upper Holman Mdwca Holman · Mora County |
325 | 4 | 1 | |
|
Emwt Rwa Sunset Acres Moriarty · Torrance County |
317 | 6 | 2 | |
|
Ensenada Mdwca Tierra Amarilla · Rio Arriba County |
300 | 4 | 2 | |
|
Ramah-Sunset Valley Rnua Ramah, Sunset Valley · County |
294 | 4 | 2 | |
|
Quemado Mutual Water & Swa Quemado · Catron County |
286 | 4 | 0 | |
|
Alto Mountain Village Alto · Lincoln County |
271 | 7 | 1 |
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 New Mexico 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.