Is Red Rock (South Of Gallup), AZ Tap Water Safe to Drink?
Graded A, with 3 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
92/100
waterverge.com Red Rock (South Of Gallup), AZ — Water Quality Report
Red Rock (South Of Gallup)'s drinking water received a grade of A (92 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 1,652 residents using groundwater.
Lead levels were measured at 2.5 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 38 violations on record, including 4 health-based violations. 3 remain unresolved.
What to know about Red Rock (South Of Gallup)'s water
Red Rock (South Of Gallup) ranks #29 out of 292 cities in Arizona for water quality, placing it one of the best in the state.
Red Rock (South Of Gallup) relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.
As a small community water system, Red Rock (South Of Gallup) may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Red Rock (South Of Gallup), AZ water safe to drink?
Red Rock (South Of Gallup)'s drinking water has significant quality concerns based on EPA testing data. With a grade of A (92/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 1,652 residents using groundwater (wells).
Recent water quality updates for Red Rock (South Of Gallup)
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Red Rock (South Of Gallup)'s water quality assessment. Grade: A (92/100).
Federal disaster declaration (FEMA DR-4620). Flood event — may have impacted local water infrastructure.
Contaminants: TTHM, Total Haloacetic Acids (HAA5).
Contaminants: Revised Total Coliform Rule.
Contaminants: Stage 2 Disinfectants and Disinfection Byproducts Rule.
Federal disaster declaration (FEMA DR-3241). Hurricane event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Red Rock (South Of Gallup)'s water supply.
Well within EPA limits.
Violation history
Red Rock (South Of Gallup)'s water system has 38 total violations on record, including 4 health-based violations. 3 remain unresolved.
Flood & environmental risk
Apache County has experienced 6 federally declared disasters since 1970. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies.
Where does Red Rock (South Of Gallup)'s water come from?
Red Rock (South Of Gallup)'s drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,652 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.
What Red Rock (South Of Gallup) residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Red Rock (South Of Gallup)'s water.
Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.
Red Rock (South Of Gallup)'s area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Flood & disaster history
Apache County has experienced 6 federally declared disasters since 1970. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 2.5 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Red Rock (South Of Gallup) compares by contaminant
Explore where Red Rock (South Of Gallup) ranks among all Arizona cities for specific contaminants.
Water source & infrastructure
Where Red Rock (South Of Gallup)'s water comes from
Red Rock (South Of Gallup)'s drinking water is drawn from underground aquifers through wells.
Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.
Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.
The system is operated by native american ownership and serves approximately 1,652 people through 1 water system.
Water systems serving Red Rock (South Of Gallup)
| System Name | PWSID | Population | Source |
|---|---|---|---|
| Red Rock NTUA | NN3500335 | 1,652 | GW |
How Red Rock (South Of Gallup) compares
Full Arizona rankings →Red Rock (South Of Gallup)'s score of 92/100 is above the average of 42/100 among major Arizona cities. It outscores 10 of 10 nearby cities.
Nearby cities
View Arizona rankings →Learn more about your water
Guides and resources related to Red Rock (South Of Gallup)'s water quality findings.
Frequently asked questions
Is Red Rock (South Of Gallup), AZ tap water safe to drink?
Red Rock (South Of Gallup)'s water quality earned a grade of A (92/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #29 out of 292 cities tested in Arizona.
What contaminants are in Red Rock (South Of Gallup)'s water?
Lead was measured at 2.5 ppb (90th percentile). 38 violations are on record.
How is Red Rock (South Of Gallup)'s water quality grade calculated?
The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.
Do I need a water filter in Red Rock (South Of Gallup)?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Red Rock (South Of Gallup)'s water come from?
Red Rock (South Of Gallup)'s water is sourced from Groundwater. The city has 1 water system serving approximately 1,652 residents.
What health violations has Red Rock (South Of Gallup)'s water system had?
Red Rock (South Of Gallup) has 4 health-based violations on record. The most recent violation was recorded in January 2020. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 3 violations remain unresolved.
Is Red Rock (South Of Gallup)'s groundwater at risk of contamination?
Red Rock (South Of Gallup) uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 38 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.
How does Red Rock (South Of Gallup)'s water compare to other cities?
Red Rock (South Of Gallup) ranks #29 out of 292 cities in Arizona (better than 90% of state cities) and #1411 out of 15744 cities nationally (91th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Red Rock (South Of Gallup)'s small water system affect quality?
Red Rock (South Of Gallup)'s system serves approximately 1,652 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 38 violations on record.