Tapcensus

New Mexico

McKinley County drinking water quality

27 active public water systems serve 33,611 people in McKinley County. 3 are compliant, 24 had at least one EPA violation in the past three years, 1 is a designated serious violator, and 8 carry a health flag.

Active systems 27 16 community systems
People served 34K by public water systems
Systems with violations 24 89% of active systems, past 3 years
Serious violators 1 8 systems carry a health flag

Needs attention

Coal Basin Dwua NM3508217 · Gallup · Community water system · Serves 116 4 rules violated in the past three years. Unresolved: Ground Water Rule, Public Notice Rule and Revised PN Rule, and Consumer Confidence Rule.
ST Bonaventure Mission NM3501517 · Thoreau · Transient non-community system · Serves 1,350 1 rule violated in the past three years. Unresolved: Ground Water Rule.
Broken Arrow Bible Ranch NM3592117 · Gallup · Transient non-community system · Serves 300 1 rule violated in the past three years. Unresolved: Ground Water Rule.
Top of the World Water Association Corp NM3532617 · Continental Divide · Community water system · Serves 177 4 rules violated in the past three years. Unresolved: Ground Water Rule.
Lee Ranch Mine NM3501417 · San Mateo · Non-Transient non-community system · Serves 135 1 rule violated in the past three years. Unresolved: Lead and Copper Rule Revisions.
D & S Trailer Ranch NM3559717 · Gallup · Community water system · Serves 109 2 rules violated in the past three years. Unresolved: Ground Water Rule.
Sagebrush Water Co-Op NM3561317 · Mentmore · Community water system · Serves 54 4 rules violated in the past three years. Unresolved: Ground Water Rule, Public Notice Rule and Revised PN Rule, and Consumer Confidence Rule.
Manuelito Navajo Childrens Home NM3560617 · Gallup · Community water system · Serves 35 2 rules violated in the past three years. Unresolved: Ground Water Rule.

Community water systems

16 systems, largest first
SystemServesStatusRules violated, 3 yrUnresolved
Gallup Water System
Gallup
20,880 3 1
Gamerco Water & Sanitation
Gamerco
1,744 1 0
Thoreau Water & Sanitation District
Thoreau
1,173 5 0
Ramah Water & Sanitation District
Ramah
517 2 2
Yah TA Hey W & SD
Yatahey
435 3 1
Whispering Cedars Water Association
Jamestown
425 2 0
White Cliffs Mdwua
Gallup
323 3 0
Top of the World Water Association Corp
Continental Divide
177 4 1
Bluewater Lake Mdwca
Bluewater
135 1 0
Coal Basin Dwua
Gallup
116 4 3
D & S Trailer Ranch
Gallup
109 2 1
Block a Well Co-Op
Gallup
92 5 1
ST Williams Mobile Home Park
Mentmore
82 4 1
Cedar Ridge Trailer Park
Gallup
65 3 1
Sagebrush Water Co-Op
Mentmore
54 4 3
Manuelito Navajo Childrens Home
Gallup
35 2 1
Non-community systems (11: schools, campgrounds, workplaces, restaurants)

These systems serve places people visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Manuelito Rest Area
Gallup
2,501 0 0
Gallup Port of Entry
Gallup
1,500 1 1
ST Bonaventure Mission
Thoreau
1,350 1 1
Speedys Black Hat Store
Gallup
800 1 1
Broken Arrow Bible Ranch
Gallup
300 1 1
EL Segundo Site
Grants
238 0 0
EL Sabino Store
Gallup
150 1 0
Kamp Kiwanis
Gallup
150 0 0
Lee Ranch Mine
San Mateo
135 1 1
T & R Market Water Supply
Yatahey
100 3 0
Jem Trading
Vanderwagen
25 2 0
Inactive systems (78, no longer operating or reporting)

Kept for the record and excluded from the county totals above. Browse inactive systems.

About this data

Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.

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. Retrieved from ECHO on Oct 11, 2026.