Stage 2 Disinfectants and Disinfection Byproducts Rule violations in New Mexico
15 active public water systems in New Mexico had a Stage 2 Disinfectants and Disinfection Byproducts Rule violation in the past three years, 15 of them in the latest quarter of EPA's data. What Stage 2 Disinfectants and Disinfection Byproducts Rule is and why it matters.
Systems with a Stage 2 Disinfectants and Disinfection Byproducts Rule violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Farmington Rural-Shiprock-Beclabito Ntua Upper Fruitland, Nenahnezad, San Juan and 1 more · County |
15,233 | 3 | 2 | |
|
Bread Springs-Chichiltah Ntua Bread Springs, Chichiltah · County |
2,066 | 2 | 2 | |
|
Red Rock Ntua Red Rock (south Of Gallup) · County |
1,652 | 2 | 2 | |
|
Thoreau West-John Willie Camp-Baca Ntua Thoreau West Rural · County |
1,611 | 2 | 2 | |
|
Twin Forks Mdwca Mayhill · Otero County |
1,274 | 4 | 1 | |
|
Carson-Huerfano Ntua Huerfano · County |
1,142 | 1 | 1 | |
|
Ojo Encino North Ntua Ojo Encino, North Of · County |
1,108 | 2 | 2 | |
|
Casamero Lake-Smith Lake Ntua Casamero Lake, Borrego Pass, Smith Lake · County |
906 | 2 | 2 | |
|
Iyanbito Ntua Iyanbito · County |
797 | 2 | 2 | |
|
Standing Rock Ntua Standing Rock · County |
739 | 3 | 2 | |
|
Dzilth-Na-O-Dith-Hle Ntua Dzilth-na-o-dith-hle · County |
462 | 1 | 1 | |
|
Fire Rock Navajo Casino Fire Rock Navajo Casino · County |
300 | 2 | 2 | |
|
Whitehorse Lake Ntua Whitehorse Lake · County |
277 | 2 | 2 | |
|
Former Pueblo Pintado Boarding School Bia Former Pueblo Pintado Boarding School · County |
103 | 4 | 3 | |
|
Casamero Cup Ntua Smith Lake, Northeast Of · County |
48 | 2 | 2 |
About this data
A system is counted once if any of its violations in the past three years involved Stage 2 Disinfectants and Disinfection Byproducts Rule, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Stage 2 Disinfectants and Disinfection Byproducts Rule 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.