Is Ojo Encino, North Of, AZ Tap Water Safe to Drink?
Graded A-, with 4 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
89.7/100
waterverge.com Ojo Encino, North Of, AZ — Water Quality Report
Ojo Encino, North Of's drinking water received a grade of A- (89.7 out of 100), indicating good water quality. The city's 1 water system serves approximately 1,108 residents using purchased surface water.
Lead levels were measured at 1.0 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 74 violations on record, including 0 health-based violations. 4 remain unresolved.
What to know about Ojo Encino, North Of's water
Ojo Encino, North Of ranks #64 out of 292 cities in Arizona for water quality, placing it above average 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, Ojo Encino, North Of may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Ojo Encino, North Of, AZ water safe to drink?
Ojo Encino, North Of's drinking water has significant quality concerns based on EPA testing data. With a grade of A- (89.7/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 1,108 residents using surface water (rivers, lakes, or reservoirs).
Recent water quality updates for Ojo Encino, North Of
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Ojo Encino, North Of's water quality assessment. Grade: A- (89.7/100).
Contaminants: Revised Total Coliform Rule.
Contaminants: Stage 2 Disinfectants and Disinfection Byproducts Rule.
Contaminants: Coliform (TCR).
Key contaminant findings
Based on the most recent EPA sampling data for Ojo Encino, North Of's water supply.
Well within EPA limits.
Violation history
Ojo Encino, North Of's water system has 74 total violations on record, including 0 health-based violations. 4 remain unresolved.
Where does Ojo Encino, North Of's water come from?
Ojo Encino, North Of's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 1 water system serving approximately 1,108 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment.
What Ojo Encino, North Of residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Ojo Encino, North Of'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.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
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. | 1.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Ojo Encino, North Of compares by contaminant
Explore where Ojo Encino, North Of ranks among all Arizona cities for specific contaminants.
Water source & infrastructure
Where Ojo Encino, North Of's water comes from
Ojo Encino, North Of's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.
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 1,108 people through 1 water system.
Water systems serving Ojo Encino, North Of
| System Name | PWSID | Population | Source |
|---|---|---|---|
| Ojo Encino North NTUA | NN3503041 | 1,108 | SWP |
How Ojo Encino, North Of compares
Full Arizona rankings →Ojo Encino, North Of's score of 89.7/100 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 Ojo Encino, North Of's water quality findings.
Frequently asked questions
Is Ojo Encino, North Of, AZ tap water safe to drink?
Ojo Encino, North Of's water quality earned a grade of A- (89.7/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #64 out of 292 cities tested in Arizona.
What contaminants are in Ojo Encino, North Of's water?
Lead was measured at 1.0 ppb (90th percentile). 74 violations are on record.
How is Ojo Encino, North Of'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 Ojo Encino, North Of?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Ojo Encino, North Of's water come from?
Ojo Encino, North Of's water is sourced from Purchased surface water. The city has 1 water system serving approximately 1,108 residents.
How does Ojo Encino, North Of's water compare to other cities?
Ojo Encino, North Of ranks #64 out of 292 cities in Arizona (better than 78% of state cities) and #2672 out of 15744 cities nationally (83th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Ojo Encino, North Of's small water system affect quality?
Ojo Encino, North Of's system serves approximately 1,108 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 74 violations on record.