Is Herriman, UT tap water safe?
The short answer
3 of the 4 utilities serving Herriman have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Utah’s records: Herriman City Municipal Water Department, Hi - Country Number 2 and Hi - Country Estates #1.
Herriman City Municipal Water Department, which serves the most people here, has 3 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 33 ppb, above EPA’s health benchmark. Health goals are stricter than legal limits and are not enforced.
The water from Herriman City Municipal Water Department is very hard, typically 758 mg/L (44.3 grains per gallon). How Utah’s water compares.
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 Herriman’s ZIP codes, from EPA’s estimates.
- Open report
Herriman City Municipal Water Department
Utah · serves 60,000 people · about 15,700 in Herriman
3 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 33 ppb, above EPA’s health benchmark. Hardness: very hard, typically 758 mg/L (44.3 grains per gallon).
1 health-based violation since 2016
- Open report
Riverton City Water System
Utah · serves 45,600 people · about 3,100 in Herriman
2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 16 ppb, above EPA’s health benchmark.
No health-based violations since 2016
- Open report
Hi - Country Number 2
Utah · serves 722 people · about 170 in Herriman
2 results above the health goal. The worst: Arsenic at 3.0 ppb, above the health goal.
2 health-based violations since 2016
- Open report
Hi - Country Estates #1
Utah · serves 373 people · about 120 in Herriman
3 results above the health goal. The worst: Arsenic at 6.7 ppb, above the health goal. Hardness: very hard, 457 mg/L (26.7 grains per gallon).
2 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 Herriman City Municipal Water Department’s water, which serves the most people here. Another utility’s report names what handles its own results.
Disclosure: TapBuff earns a commission if you buy through some links on this page. It does not change which standard or filter we name. As an Amazon Associate, TapBuff earns from qualifying purchases. How TapBuff makes money
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 Herriman
The 3 labs Utah certifies closest to Herriman, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Jordan Valley Laboratory
Herriman, UT · about 10 miles
Certified for bacteria, nitrate, minerals and other inorganics, disinfection byproducts
Chemtech-Ford, Inc.
Sandy, UT · about 12 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS, radioactivity
Rio Tinto Kennecott Environmental and Industrial Hygiene Laboratory
Magna, UT · about 13 miles
Certified for nitrate, lead and copper, metals, minerals and other inorganics
ZIP codes in Herriman
Which ZIP codes are in Herriman: 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.
What to do next
- Read Herriman City Municipal Water Department’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- About LithiumWhat it does to health, where it comes from, and the certification claim that addresses it.About Lithium
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water