Is Deweyville, UT tap water safe?
The short answer
1 of the 5 utilities serving Deweyville has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Utah’s records: Brigham City Water System.
Brigham City Water System, which serves the most people here, has 2 results above the health goal. The worst: Arsenic at 0.82 ppb, above the health goal. Health goals are stricter than legal limits and are not enforced.
The water from Brigham City Water System is very hard, 216 mg/L (12.6 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 Deweyville’s ZIP codes, from EPA’s estimates.
- Open report
Brigham City Water System
Utah · serves 20,540 people · about 410 in Deweyville
2 results above the health goal. The worst: Arsenic at 0.82 ppb, above the health goal. Hardness: very hard, 216 mg/L (12.6 grains per gallon).
1 health-based violation since 2016
- Open report
Deweyville Town
Utah · serves 420 people · about 210 in Deweyville
2 results above the health goal. The worst: Lead at 8.0 ppb, above the health goal.
No health-based violations since 2016
- Open report
Perry City
Utah · serves 6,570 people · about 120 in Deweyville
2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 54.6 ppb, above EPA’s health benchmark. Hardness: hard, 134 mg/L (7.8 grains per gallon).
No health-based violations since 2016
- Open report
Honeyville Town Water System
Utah · serves 1,750 people · under 100 in Deweyville
2 results above the health goal. The worst: Lead at 6.7 ppb, above the health goal.
No health-based violations since 2016
- Open report
Bear River Wcd - Collinston Water System
Utah · serves 102 people · under 100 in Deweyville
2 results above the health goal. The worst: Arsenic at 5.7 ppb, above the health goal. Hardness: hard, 120 mg/L (7 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 Brigham City 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, 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 Deweyville
The 3 labs Utah certifies closest to Deweyville, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Brigham City Laboratory
Brigham City, UT · about 8 miles
Certified for bacteria, minerals and other inorganics
Bear River District Health Department Water Laboratory
Logan, UT · about 16 miles
Certified for bacteria, nitrate
Northrup Grumman Space Systems Environmental Laboratory
Corinne, UT · about 16 miles
Certified for nitrate, lead and copper, metals, minerals and other inorganics
Which ZIP codes are in Deweyville: 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 Deweyville
Other towns in Box Elder County with a page of their own.
What to do next
- Read Brigham City 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