Tapcensus

E. coli (Escherichia coli) violations in New Mexico

31 active public water systems in New Mexico had a E. coli (Escherichia coli) violation in the past three years, 31 of them in the latest quarter of EPA's data. What E. coli (Escherichia coli) is and why it matters.

Health effects: Most E. coli strains cause diarrheal illness. Some strains (e.g., O157:H7) produce toxins causing severe bloody diarrhea, hemolytic uremic syndrome (HUS — a form of kidney failure), and death — especially in children under 5 and the elderly. Even non-pathogenic strains in drinking water indicate that disease-causing organisms may also be present.

Systems with a E. coli (Escherichia coli) violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Roswell Municipal Water System
Roswell · Chaves County
54,025 4 1
Dona Ana Mdwca
Dona Ana · Doña Ana County
16,987 4 2
Bernalillo Water System
Bernalillo · Sandoval County
11,810 4 1
Otis Mdwca
Carlsbad · Eddy County
4,464 7 2
Lordsburg Water Supply System
Lordsburg · Hidalgo County
3,298 5 3
Moriarty Water System
Moriarty · Torrance County
2,825 3 2
Canoncito
Canoncito · County
1,326 6 3
Mora Mdwca & Swa
Mora · Mora County
1,100 3 1
Vaughn Duran Water System
Vaughn · Guadalupe County
785 4 2
Pendaries Mdwca
Rociada · San Miguel County
500 5 2
Ski Apache
Ruidoso · Lincoln County
350 6 2
Bicentennial Rest Area
Santa Fe · Santa Fe County
330 2 1
Cordova Mdwca
Cordova · Rio Arriba County
325 7 2
Bonito Hollow RV Park and Campground
Alto · Lincoln County
250 2 1
Pine Springs Summer Camp
Sacramento · Otero County
250 1 1
Ilfeld Mdwca
Ilfeld, San Jose · San Miguel County
249 3 1
Tecolotito Mdwca
Tecolotito · San Miguel County
212 1 1
Echo Amphitheater Usfs Carson
Rio Arriba County
205 1 1
Chilili Water Users Assn
Tijeras · Bernalillo County
175 8 3
Turquoise Trail Center Water System
Cedar Crest · Bernalillo County
170 3 1
Philmont Scout Ranch Fish Camp Outcamp
Cimarron · Colfax County
150 1 1
City of Rocks State Park
Faywood · Grant County
149 1 1
San Juan Mdwca
San Jose · San Miguel County
136 3 0
Valley Elementary and Middle School
Ribera · San Miguel County
130 4 1
LA Mesa Villa Mobile Home Park, LLC
Albuquerque · Bernalillo County
90 5 4
Cider Mill Farms Mdwca
High Rolls · Otero County
76 1 1
Western Terrace
Albuquerque · Bernalillo County
76 6 4
Cassandra Water System
Moriarty · Torrance County
34 7 6
Monticello RV Park
Elephant Butte · Sierra County
25 3 2
Stagecoach RV Ranch
Deming · Luna County
25 2 1
Vermejo Park LLC Costilla
Raton · Colfax County
25 1 1
About this data

A system is counted once if any of its violations in the past three years involved E. coli (Escherichia coli), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not E. coli (Escherichia coli) 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.