Is Elwood, UT tap water safe?
The short answer
1 of the 4 utilities serving Elwood has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and Utah’s records: Elwood Town.
Tremonton City, which serves the most people here, has 2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 61 ppb, above EPA’s health benchmark. 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 Elwood’s ZIP codes, from EPA’s estimates.
- Open report
Tremonton City
Utah · serves 13,000 people · about 480 in Elwood
2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 61 ppb, above EPA’s health benchmark.
No health-based violations since 2016
- Open report
Elwood Town
Utah · serves 1,300 people · under 100 in Elwood
2 results above the health goal. The worst: Lead at 2.3 ppb, above the health goal.
1 health-based violation since 2016
- Open report
West Corinne Water Co
Utah · serves 1,970 people · under 100 in Elwood
2 results above the health goal. The worst: Arsenic at 1.8 ppb, above the health goal. Hardness: very hard, typically 227 mg/L (13.3 grains per gallon).
No health-based violations since 2016
- Open report
Thatcher - Penrose Service District
Utah · serves 590 people · under 100 in Elwood
2 results above the health goal. The worst: Arsenic at 4.4 ppb, above the health goal. Hardness: very hard, 250 mg/L (14.6 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 Tremonton 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 Elwood
The 3 labs Utah certifies closest to Elwood, 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 22 miles
Certified for bacteria, minerals and other inorganics
Bear River District Health Department Water Laboratory
Logan, UT · about 26 miles
Certified for bacteria, nitrate
Northrup Grumman Space Systems Environmental Laboratory
Corinne, UT · about 29 miles
Certified for nitrate, lead and copper, metals, minerals and other inorganics
ZIP codes in Elwood
Which ZIP codes are in Elwood: 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 Elwood
Other towns in Box Elder County with a page of their own.
What to do next
- Read Tremonton City’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