Is Toquerville, UT tap water safe?
The short answer
2 of the 3 utilities serving Toquerville have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Utah’s records: Cedar City Waterworks and Leeds Domestic Water Users Association.
Toquerville Town Water System, which serves the most people here, has 1 result above the health goal. The worst: Arsenic at 2.1 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Toquerville’s ZIP codes, from EPA’s estimates.
- Open report
Toquerville Town Water System
Utah · serves 1,931 people · about 1,100 in Toquerville
1 result above the health goal. The worst: Arsenic at 2.1 ppb, above the health goal.
No health-based violations since 2016
- Open report
Cedar City Waterworks
Utah · serves 39,670 people · about 160 in Toquerville
1 result above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 16.3 ppb, above EPA’s health benchmark. Hardness: moderately hard, 96 mg/L (5.6 grains per gallon).
1 health-based violation since 2016
- Open report
Leeds Domestic Water Users Association
Utah · serves 800 people · about 120 in Toquerville
2 results above the health goal. The worst: Arsenic at 3.6 ppb, above the health goal. Hardness: very hard, 288 mg/L (16.8 grains per gallon).
1 health-based violation since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Toquerville Town Water System’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Countertop reverse osmosis
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 4, 2026
Certified for: Arsenic
Aquasana SmartFlow Reverse Osmosis (AQ-SFRO2)
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Arsenic
Brondell Capella RC250 Reverse Osmosis System
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Arsenic
Water testing near Toquerville
The 3 labs Utah certifies closest to Toquerville, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Southern Utah University Water Laboratory
Cedar City, UT · about 24 miles
Certified for nitrate, lead and copper, metals, minerals and other inorganics
Southwest Utah Public Health Laboratory
St. George, UT · about 25 miles
Certified for bacteria, nitrate
St. George RWRF Laboratory
St. George, UT · about 30 miles
Certified for bacteria
Which ZIP codes are in Toquerville: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: Utah Department of Environmental Quality, Division of Drinking Water, certified laboratories; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Toquerville
Other towns in Washington County with a page of their own.
What to do next
- Read Toquerville Town Water System’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for ArsenicRanked by certification and what they cost over five years.The best reverse osmosis systems, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water