Is Great Falls, UT Tap Water Safe to Drink?
Graded A with no contaminants above EPA limits. Here's everything we tested and how Great Falls ranks. What to do next ↓
93/100
waterverge.com Great Falls, UT — Water Quality Report
Great Falls's drinking water received a grade of A (93 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 600 residents using purchased surface water.
Lead data is not currently available for this system. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 1 violation on record, including 0 health-based violations. All violations have been resolved.
What to know about Great Falls's water
Great Falls ranks #3 out of 177 cities in Utah for water quality, placing it one of the best 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, Great Falls may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Great Falls, UT water safe to drink?
Based on EPA testing data, Great Falls's tap water is generally safe to drink. The water system earned a grade of A (93/100), meeting federal drinking water standards across key contaminant categories. The city's 1 water system serves approximately 600 residents using surface water (rivers, lakes, or reservoirs).
Recent water quality updates for Great Falls
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Great Falls's water quality assessment. Grade: A (93/100).
Federal disaster declaration (FEMA DR-4752). Flood event — may have impacted local water infrastructure.
Contaminants: Coliform (TCR).
Federal disaster declaration (FEMA DR-4011). Flood event — may have impacted local water infrastructure.
Violation history
Great Falls's water system has 1 total violation on record, including 0 health-based violations. All violations have been resolved.
Flood & environmental risk
Utah 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. Local water sources include Hobble Creek, Provo River, American Fk Ab Upper Powerplant Nr American Fk.
Where does Great Falls's water come from?
Great Falls's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 1 water system serving approximately 600 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include Hobble Creek (river), Provo River (river), American Fk Ab Upper Powerplant Nr American Fk (river).
What Great Falls 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.
Great Falls'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.
Violation summary
Violations & advisories
Flood & disaster history
Utah 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
No contaminant data available for this city.
See how Great Falls compares by contaminant
Explore where Great Falls ranks among all Utah cities for specific contaminants.
Water source & infrastructure
Where Great Falls's water comes from
Great Falls'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 private ownership and serves approximately 600 people through 1 water system.
Water bodies near Great Falls
Great Falls is located near 3 notable water bodies. As a surface water system, these water bodies may directly influence the city's drinking water supply.
Water systems serving Great Falls
| System Name | PWSID | Population | Source |
|---|---|---|---|
| COUNTRYSIDE VILLAGE MHP GRT FLS | MT0004830 | 600 | SWP |
How Great Falls compares
Full Utah rankings →Great Falls's score of 93/100 is above the average of 50/100 among major Utah cities. It outscores 10 of 10 nearby cities.
Nearby cities
View Utah rankings →About Great Falls, UT
Wikipedia →Orem is a city in Utah County, Utah, United States, in the north central part of the state. It is adjacent to Provo, Lindon, and Vineyard and is approximately 45 miles (72 km) south of Salt Lake City.
Learn more about your water
Guides and resources related to Great Falls's water quality findings.
Explore water quality across Cascade
Frequently asked questions
Is Great Falls, UT tap water safe to drink?
Great Falls's water quality earned a grade of A (93/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #3 out of 177 cities tested in Utah.
What contaminants are in Great Falls's water?
1 violation is on record.
How is Great Falls'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 Great Falls?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Great Falls's water come from?
Great Falls's water is sourced from Purchased surface water. The city has 1 water system serving approximately 600 residents.
How does Great Falls's water compare to other cities?
Great Falls ranks #3 out of 177 cities in Utah (better than 98% of state cities) and #1042 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 Great Falls's small water system affect quality?
Great Falls's system serves approximately 600 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 1 violation on record.