Is Santa Clara, UT tap water safe?
The short answer
Neither of the 2 utilities serving Santa Clara has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Utah’s records.
Santa Clara City, which serves the most people here, has 1 result above the limit’s level with no violation recorded, 2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Arsenic at 10.8 ppb, above the limit’s level, no violation. 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 Santa Clara’s ZIP codes, from EPA’s estimates.
- Open report
Santa Clara City
Utah · serves 9,000 people · about 840 in Santa Clara
1 result above the limit’s level with no violation recorded, 2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Arsenic at 10.8 ppb, above the limit’s level, no violation.
No health-based violations since 2016
- Open report
St George City Water System
Utah · serves 105,240 people · about 460 in Santa Clara
1 result above the limit’s level with no violation recorded, 2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Arsenic at 12.8 ppb, above the limit’s level, no violation. Hardness: soft to very hard depending on the source, 46 to 370 mg/L (2.7 to 21.6 grains per gallon).
No health-based violations since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Santa Clara City’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, Lead
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, Lead
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, Lead
Water testing near Santa Clara
The 3 labs Utah certifies closest to Santa Clara, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Southwest Utah Public Health Laboratory
St. George, UT · about 5 miles
Certified for bacteria, nitrate
St. George RWRF Laboratory
St. George, UT · about 7 miles
Certified for bacteria
Southern Utah University Water Laboratory
Cedar City, UT · about 48 miles
Certified for nitrate, lead and copper, metals, minerals and other inorganics
Which ZIP codes are in Santa Clara: 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 Santa Clara
Other towns in Washington County with a page of their own.
What to do next
- Read Santa Clara City’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