Is Montua, UT Tap Water Safe to Drink?
Graded B-, with 10 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
71.2/100
waterverge.com Montua, UT — Water Quality Report
Montua's drinking water received a grade of B- (71.2 out of 100), indicating fair water quality. The city's 1 water system serves approximately 1,200 residents using groundwater.
Lead levels were measured at 1.8 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 214 violations on record, including 7 health-based violations. 10 remain unresolved.
What to know about Montua's water
Montua ranks #100 out of 177 cities in Utah for water quality, placing it below average in the state.
Montua 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, Montua may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Montua, UT water safe to drink?
Montua's drinking water has significant quality concerns based on EPA testing data. With a grade of B- (71.2/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 1,200 residents using groundwater (wells).
Recent water quality updates for Montua
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Montua's water quality assessment. Grade: B- (71.2/100).
Contaminants: Consumer Confidence Rule.
Contaminants: Consumer Confidence Rule.
Contaminants: Revised Total Coliform Rule.
Key contaminant findings
Based on the most recent EPA sampling data for Montua's water supply.
Well within EPA limits.
Violation history
Montua's water system has 214 total violations on record, including 7 health-based violations. 10 remain unresolved. 5 violations were issued in the last 5 years.
Where does Montua's water come from?
Montua's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,200 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.
What Montua residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Montua'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
Drought conditions
D3 — extreme droughtBox Elder County is currently in D3 (extreme drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.
Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.
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. | 1.8 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Montua compares by contaminant
Explore where Montua ranks among all Utah cities for specific contaminants.
Water source & infrastructure
Where Montua's water comes from
Montua'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 local government ownership and serves approximately 1,200 people through 1 water system.
Water systems serving Montua
| System Name | PWSID | Population | Source |
|---|---|---|---|
| MANTUA TOWN WATER SYSTEM | UTAH02018 | 1,200 | GW |
How Montua compares
Full Utah rankings →Montua's score of 71.2/100 is above the average of 50/100 among major Utah cities. It outscores 9 of 10 nearby cities.
Nearby cities
View Utah rankings →Learn more about your water
Guides and resources related to Montua's water quality findings.
Explore water quality across Box Elder
Frequently asked questions
Is Montua, UT tap water safe to drink?
Montua's water quality earned a grade of B- (71.2/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #100 out of 177 cities tested in Utah.
What contaminants are in Montua's water?
Lead was measured at 1.8 ppb (90th percentile). 214 violations are on record.
How is Montua'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 Montua?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Montua's water come from?
Montua's water is sourced from Groundwater. The city has 1 water system serving approximately 1,200 residents.
What health violations has Montua's water system had?
Montua has 7 health-based violations on record. The most recent violation was recorded in October 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 10 violations remain unresolved.
Is Montua's groundwater at risk of contamination?
Montua 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 214 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 Montua's water compare to other cities?
Montua ranks #100 out of 177 cities in Utah (better than 44% of state cities) and #10600 out of 15744 cities nationally (33th percentile). The grade of B- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Montua's small water system affect quality?
Montua's system serves approximately 1,200 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 214 violations on record.