Is South Rim, UT Tap Water Safe to Drink?
Graded A, with 3 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
92.7/100
waterverge.com South Rim, UT — Water Quality Report
South Rim's drinking water received a grade of A (92.7 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 834 residents using groundwater.
Lead levels were measured at 1.1 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 16 violations on record, including 6 health-based violations. 3 remain unresolved.
What to know about South Rim's water
South Rim ranks #4 out of 177 cities in Utah for water quality, placing it one of the best in the state.
South Rim 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, South Rim may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is South Rim, UT water safe to drink?
South Rim's drinking water has significant quality concerns based on EPA testing data. With a grade of A (92.7/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 834 residents using groundwater (wells).
Recent water quality updates for South Rim
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into South Rim's water quality assessment. Grade: A (92.7/100).
Contaminants: Gross Alpha, Excl. Radon and U, Radium-228, Radium-226.
Contaminants: E. COLI.
Contaminants: Radium-228, Gross Alpha, Excl. Radon and U, Radium-226.
Key contaminant findings
Based on the most recent EPA sampling data for South Rim's water supply.
Well within EPA limits.
Violation history
South Rim's water system has 16 total violations on record, including 6 health-based violations. 3 remain unresolved.
Where does South Rim's water come from?
South Rim's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 834 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.
What South Rim residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in South Rim'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 droughtTooele 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. | 1.1 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how South Rim compares by contaminant
Explore where South Rim ranks among all Utah cities for specific contaminants.
Water source & infrastructure
Where South Rim's water comes from
South Rim'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 private ownership and serves approximately 834 people through 1 water system.
Water systems serving South Rim
| System Name | PWSID | Population | Source |
|---|---|---|---|
| SOUTH RIM WATER SYSTEM | UTAH23079 | 834 | GW |
How South Rim compares
Full Utah rankings →South Rim's score of 92.7/100 is above the average of 50/100 among major Utah cities. It outscores 10 of 10 nearby cities.
Nearby cities
View Utah rankings →Learn more about your water
Guides and resources related to South Rim's water quality findings.
Explore water quality across Tooele
Frequently asked questions
Is South Rim, UT tap water safe to drink?
South Rim's water quality earned a grade of A (92.7/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #4 out of 177 cities tested in Utah.
What contaminants are in South Rim's water?
Lead was measured at 1.1 ppb (90th percentile). 16 violations are on record.
How is South Rim'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 South Rim?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does South Rim's water come from?
South Rim's water is sourced from Groundwater. The city has 1 water system serving approximately 834 residents.
What health violations has South Rim's water system had?
South Rim has 6 health-based violations on record. The most recent violation was recorded in October 2017. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 3 violations remain unresolved.
Is South Rim's groundwater at risk of contamination?
South Rim 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 16 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 South Rim's water compare to other cities?
South Rim ranks #4 out of 177 cities in Utah (better than 98% of state cities) and #1156 out of 15744 cities nationally (93th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does South Rim's small water system affect quality?
South Rim's system serves approximately 834 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 16 violations on record.