Is Upton, WY 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 next ↓
90.5/100
waterverge.com Upton, WY — Water Quality Report
Upton's drinking water received a grade of A (90.5 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 1,100 residents using groundwater.
Lead levels were measured at 2.0 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 7 violations on record, including 2 health-based violations. 2 remain unresolved.
What to know about Upton's water
Upton ranks #4 out of 65 cities in Wyoming for water quality, placing it one of the best in the state.
Upton 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, Upton may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Upton, WY water safe to drink?
Upton's tap water meets most EPA standards but has areas that warrant attention. With a grade of A (90.5/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 1,100 residents using groundwater (wells).
Recent water quality updates for Upton
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Upton's water quality assessment. Grade: A (90.5/100).
1 health-based. Contaminants: Groundwater Rule.
1 health-based. Contaminants: Coliform (TCR).
Contaminants: Coliform (TCR).
Federal disaster declaration (FEMA DR-557). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Upton's water supply.
Well within EPA limits.
Violation history
Upton's water system has 7 total violations on record, including 2 health-based violations. 2 remain unresolved.
Flood & environmental risk
Weston County has experienced 1 federally declared disaster since 1978. 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 Upton's water come from?
Upton's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,100 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.
What Upton residents can do
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 droughtWeston 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
Weston County has experienced 1 federally declared disaster since 1978. 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. | 2.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Upton compares by contaminant
Explore where Upton ranks among all Wyoming cities for specific contaminants.
Water source & infrastructure
Where Upton's water comes from
Upton'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 1,100 people through 1 water system.
Water systems serving Upton
| System Name | PWSID | Population | Source |
|---|---|---|---|
| UPTON, TOWN OF | WY5600140 | 1,100 | GW |
How Upton compares
Full Wyoming rankings →Upton's score of 90.5/100 is above the average of 55/100 among major Wyoming cities. It outscores 10 of 10 nearby cities.
Nearby cities
View Wyoming rankings →About Upton, WY
Learn more about your water
Guides and resources related to Upton's water quality findings.
Explore water quality across Weston
Frequently asked questions
Is Upton, WY tap water safe to drink?
Upton's water quality earned a grade of A (90.5/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #4 out of 65 cities tested in Wyoming.
What contaminants are in Upton's water?
Lead was measured at 2.0 ppb (90th percentile). 7 violations are on record.
How is Upton'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 Upton?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Upton's water come from?
Upton's water is sourced from Groundwater. The city has 1 water system serving approximately 1,100 residents.
What health violations has Upton's water system had?
Upton has 2 health-based violations on record. The most recent violation was recorded in March 2019. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 2 violations remain unresolved.
Is Upton's groundwater at risk of contamination?
Upton 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 7 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 Upton's water compare to other cities?
Upton ranks #4 out of 65 cities in Wyoming (better than 94% of state cities) and #2204 out of 15744 cities nationally (86th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Upton's small water system affect quality?
Upton's system serves approximately 1,100 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 7 violations on record.