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Water quality report · updated Jul 2026

Is Torreon/Ojo Encino, New Mexico, AZ Tap Water Safe to Drink?

Graded A, with 2 unresolved violations on record. See what was cited — and what it means for your tap. What to do ↓

0 contaminants over a legal limit
2.5 ppb lead, 90th percentile · low
2 unresolved violations
2K people served by 1 water system

PWSID 093503042 · moderate data confidence · native american utility

Reviewed by WaterVerge Editorial Team · Last updated July 2026
A 92.5 / 100

#23 of 271Arizona cities
How we grade →

01The verdict: is Torreon/Ojo Encino, New Mexico water safe?

Torreon/Ojo Encino, New Mexico's tap water meets most EPA standards but has areas that warrant attention. With a grade of A (92.5/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 1,951 residents using surface water (rivers, lakes, or reservoirs).

The concern

2 unresolved violations on record

EPA records show open compliance items for this system. Most are administrative, but unresolved items are worth watching.

See what was cited ↓
The good news

Lead is well under the limit

90th-percentile lead is 2.5 ppb — beneath the 15 ppb federal action level and under the 5 ppb watch threshold.

See the trend ↓
Keep watching

A flood-prone service area

6 federal disaster declarations on record. After severe weather, watch for boil-water advisories.

See the risk factors ↓

Torreon/Ojo Encino, New Mexico's drinking water received a grade of A (92.5 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 1,951 residents using purchased surface water.

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 13 violations on record, including 6 health-based violations. 2 remain unresolved.

Torreon/Ojo Encino, New Mexico ranks #23 out of 271 cities in Arizona for water quality, placing it one of the best in the state. The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection. As a small community water system, Torreon/Ojo Encino, New Mexico may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

How the 92.5/100 breaks down Methodology →
ViolationsHistorical violation record including health-based and monitoring violations.
43.5 / 45A
Lead & CopperLead at 2.5 ppb (90th percentile).
20 / 20A
ContaminantsPFAS + legacy contaminant analysis.
17 / 20B
ComplianceMonitoring and reporting compliance with EPA regulations.
8 / 10B
Source RiskWater source: Purchased surface water.
4 / 5B

02What's in Torreon/Ojo Encino, New Mexico's water

Every contaminant flagged in Torreon/Ojo Encino, New Mexico, on one shared scale: distance to its own legal limit. The red line is the limit — anything past it is out of compliance, and the closer a bar gets, the less headroom the system has.

1 detection · sorted by % of legal limit
Over the limit Elevated — watch Within limits
0 50% LEGAL LIMIT 150%
1 contaminant tested under EPA SDWIS, LCR and UCMR programs · 1 detected · not yet tested for PFAS under UCMR 5

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 2.5 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

03Torreon/Ojo Encino, New Mexico's ten-year track record

Each box is one year. A green check means no EPA violations; a numbered badge counts that year's violations — red if any were health-based, amber if they were monitoring or paperwork issues. The system has 13 violations on record, including 6 health-based violations. 2 remain unresolved.

All ten of the last ten years were clean — no EPA violations recorded for Torreon/Ojo Encino, New Mexico.

UpdateWater quality data updatedLatest EPA compliance and testing data incorporated into Torreon/Ojo Encino, New Mexico's water quality assessment. Grade: A (92.5/100).
DisasterSEVERE STORMS AND FLOODINGFederal disaster declaration (FEMA DR-4620). Flood event — may have impacted local water infrastructure.
Violation2 drinking water violations recordedContaminants: TTHM, Total Haloacetic Acids (HAA5).Resolved
Violation1 drinking water violation recorded1 health-based. Contaminants: Coliform (TCR).Resolved
Violation1 drinking water violation recorded1 health-based. Contaminants: Coliform (TCR).Resolved
DisasterHURRICANE KATRINA EVACUATIONFederal disaster declaration (FEMA DR-3241). Hurricane event — may have impacted local water infrastructure.
Lead, 90th percentileppb · lower is better
05101520EPA action level · 15 ppb1994 — 1 ppb1995 — 1 ppb2001 — 2 ppb2004 — 1 ppb2007 — 5 ppb2010 — 1 ppb2013 — 1 ppb2016 — 1 ppb2019 — 1 ppb2021 — 1 ppb2022 — 2.5 ppb2023 — 2.5 ppb12.519942004201320212023

Up 1.5 ppb since 1994. Latest reading: 2.5 ppb (2023) — 17% of the action level. Sampled at higher-risk homes (90th percentile).

04Where Torreon/Ojo Encino, New Mexico's water comes from

Torreon/Ojo Encino, New Mexico's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.

Source

Purchased Surface Water

Rivers, lakes, or reservoirs — more exposed to runoff, agriculture, and seasonal swings than groundwater.

Treatment

Wholesale supplier

Multi-barrier treatment: coagulation, sedimentation, filtration, and disinfection to meet EPA standards.

Distribution

1 system

1 water system (1 wholesaler), operated under native american ownership.

Delivery

1,951 people

Residents served across Torreon/Ojo Encino, New Mexico's service area.

Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards. These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge. The system is operated by native american ownership and serves approximately 1,951 people through 1 water system.

System namePWSIDPopulationSource
Torreon-Ojo Encino East - NTUA 093503042 1,951 Purchased Surface Water

05Pressure on Torreon/Ojo Encino, New Mexico's watershed

Outside forces that shape what reaches the treatment plant. None of these is a verdict on the tap by itself — but each adds pressure worth knowing about.

Flood & storm history

Recurring — declared disasters

6 federal disaster declarations on record for Apache County. Flooding and severe storms can overwhelm treatment plants, cause sewage overflows, and push runoff into supplies.

SEVERE STORMS AND FLOODING Sep 2021 · DR-4620
HURRICANE KATRINA EVACUATION Sep 2005 · DR-3241
SEVERE STORMS, TORNADOES & FLOODING Jan 1993 · DR-977

06How Torreon/Ojo Encino, New Mexico compares

Scores for nearby Arizona cities on one line, with the average marked.

Torreon/Ojo Encino, New Mexico (this city)
92.5 · A
Mesa
40.6 · F
Chandler
40.5 · F
Tucson
38.1 · F
Phoenix
37.5 · F
Gilbert
34.8 · F

dashed line = Arizona average (41/100)

Torreon/Ojo Encino, New Mexico scores 92.5/100above the Arizona average of 41/100. It outscores 10 of 10 nearby cities. Full Arizona rankings →

07What to do at home

Steps matched to what testing actually found in Torreon/Ojo Encino, New Mexico's water — not generic advice.

Extra protection

A basic carbon filter still helps

Torreon/Ojo Encino, New Mexico's water meets federal standards, but a simple carbon filter improves taste and adds a margin of safety against short-term issues.

Compare tested filters →
Know your report

Read your utility's annual report

Every utility must publish a yearly Consumer Confidence Report with its own testing results. It pairs well with the independent data on this page.

How to read a CCR →
Stay informed

Watch for Torreon/Ojo Encino, New Mexico alerts

This area has a history of flood declarations — after severe weather, watch for boil-water advisories from the utility, and check the live alerts on this page.

All water alerts →

Frequently asked questions

Is Torreon/Ojo Encino, New Mexico, AZ tap water safe to drink?

Torreon/Ojo Encino, New Mexico's water quality earned a grade of A (92.5/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #23 out of 271 cities tested in Arizona.

What contaminants are in Torreon/Ojo Encino, New Mexico's water?

Lead was measured at 2.5 ppb (90th percentile). 13 violations are on record.

How is Torreon/Ojo Encino, New Mexico'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 Torreon/Ojo Encino, New Mexico?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Torreon/Ojo Encino, New Mexico's water come from?

Torreon/Ojo Encino, New Mexico's water is sourced from Purchased surface water. The city has 1 water system serving approximately 1,951 residents.

What health violations has Torreon/Ojo Encino, New Mexico's water system had?

Torreon/Ojo Encino, New Mexico has 6 health-based violations on record. The most recent violation was recorded in January 2014. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 2 violations remain unresolved.

How does Torreon/Ojo Encino, New Mexico's water compare to other cities?

Torreon/Ojo Encino, New Mexico ranks #23 out of 271 cities in Arizona (better than 92% of state cities) and #1214 out of 15382 cities nationally (92th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Torreon/Ojo Encino, New Mexico's small water system affect quality?

Torreon/Ojo Encino, New Mexico's system serves approximately 1,951 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 13 violations on record.

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About Torreon/Ojo Encino, New Mexico, AZ: Fort Defiance is a census-designated place (CDP) in Apache County, Arizona, United States. It is also located within the Navajo Nation. The population was 3,624 at the 2010 census. Wikipedia → Sources: EPA SDWIS & ECHO · UCMR 3–5 · Lead & Copper Rule samples · EPA TRI · U.S. Drought Monitor · FEMA declarations. Data last updated Jul 2026. Analysis by the WaterVerge Editorial Team · methodology.