Is Central Valley, 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 ↓
74.3/100
waterverge.com Central Valley, UT — Water Quality Report
Central Valley's drinking water received a grade of B- (74.3 out of 100), indicating fair water quality. The city's 1 water system serves approximately 690 residents using groundwater.
Lead levels were measured at 0.5 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 348 violations on record, including 2 health-based violations. 10 remain unresolved.
What to know about Central Valley's water
Central Valley ranks #92 out of 177 cities in Utah for water quality, placing it below average in the state.
Central Valley 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, Central Valley may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Central Valley, UT water safe to drink?
Central Valley's drinking water has significant quality concerns based on EPA testing data. With a grade of B- (74.3/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 690 residents using groundwater (wells).
Recent water quality updates for Central Valley
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Central Valley's water quality assessment. Grade: B- (74.3/100).
Contaminants: Revised Total Coliform Rule.
Contaminants: Consumer Confidence Rule.
Contaminants: TTHM, Total Haloacetic Acids (HAA5).
Federal disaster declaration (FEMA DR-4011). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-3223). Coastal Storm event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Central Valley's water supply.
Well within EPA limits.
Violation history
Central Valley's water system has 348 total violations on record, including 2 health-based violations. 10 remain unresolved. 5 violations were issued in the last 5 years.
Flood & environmental risk
Sevier County has experienced 5 federally declared disasters since 1983. 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 Central Valley's water come from?
Central Valley's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 690 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.
What Central Valley residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Central Valley'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.
Central Valley'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
Drought conditions
D3 — extreme droughtSevier 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.
Flood & disaster history
Sevier County has experienced 5 federally declared disasters since 1983. 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. | 0.5 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Central Valley compares by contaminant
Explore where Central Valley ranks among all Utah cities for specific contaminants.
Water source & infrastructure
Where Central Valley's water comes from
Central Valley'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 690 people through 1 water system.
Water systems serving Central Valley
| System Name | PWSID | Population | Source |
|---|---|---|---|
| CENTRAL VALLEY TOWN | UTAH21006 | 690 | GW |
How Central Valley compares
Full Utah rankings →Central Valley's score of 74.3/100 is above the average of 50/100 among major Utah cities. It outscores 9 of 10 nearby cities.
Nearby cities
View Utah rankings →About Central Valley, UT
Wikipedia →Central Valley is a town in Sevier County, Utah, United States. The population was 647 at the 2020 census. Known for years simply as Central, the town was named Central Valley at its incorporation in 2005.
Learn more about your water
Guides and resources related to Central Valley's water quality findings.
Explore water quality across Sevier
Frequently asked questions
Is Central Valley, UT tap water safe to drink?
Central Valley's water quality earned a grade of B- (74.3/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #92 out of 177 cities tested in Utah.
What contaminants are in Central Valley's water?
Lead was measured at 0.5 ppb (90th percentile). 348 violations are on record.
How is Central Valley'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 Central Valley?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Central Valley's water come from?
Central Valley's water is sourced from Groundwater. The city has 1 water system serving approximately 690 residents.
What health violations has Central Valley's water system had?
Central Valley has 2 health-based violations on record. The most recent violation was recorded in March 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 10 violations remain unresolved.
Is Central Valley's groundwater at risk of contamination?
Central Valley 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 348 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 Central Valley's water compare to other cities?
Central Valley ranks #92 out of 177 cities in Utah (better than 48% of state cities) and #9893 out of 15744 cities nationally (37th percentile). The grade of B- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Central Valley's small water system affect quality?
Central Valley's system serves approximately 690 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 348 violations on record.