Is Greenbrier, AR tap water safe?
The short answer
4 of the 4 utilities serving Greenbrier have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s records: Greenbrier Waterworks, Wooster Waterworks, Community Water System and 1 more.
Greenbrier Waterworks, which serves the most people here, has 2 results above the legal limit and 1 result above the health goal. The worst: Haloacetic acids (HAA5) at 48.7 ppb, above the legal limit.
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 Greenbrier’s ZIP codes, from EPA’s estimates.
- Open report
Greenbrier Waterworks
Arkansas · serves 12,938 people · about 450 in Greenbrier
2 results above the legal limit and 1 result above the health goal. The worst: Haloacetic acids (HAA5) at 48.7 ppb, above the legal limit.
No health-based violations since 2016
- Open report
Wooster Waterworks
Arkansas · serves 5,000 people · about 240 in Greenbrier
2 results above the legal limit and 1 result above the health goal. The worst: Total trihalomethanes (TTHM) at 96 ppb, above the legal limit.
6 health-based violations since 2016
- Open report
Community Water System
Arkansas · serves 18,628 people · about 140 in Greenbrier
1 result above the health goal. The worst: Lead at 7.4 ppb, above the health goal.
1 health-based violation since 2016
- Open report
Guy Waterworks
Arkansas · serves 2,438 people · under 100 in Greenbrier
1 result above the legal limit and 1 result above the health goal. The worst: Haloacetic acids (HAA5) at 46.5 ppb, above the legal limit.
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 Greenbrier Waterworks’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Aquasana Clean Water Machine (AQ-CWM2)
Countertop
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 9, 2026
Certified for: Total trihalomethanes (TTHM), Lead
Brita Hub Countertop Water Filter System (87340)
Countertop
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 9, 2026
- IAPMO listing:NSF/ANSI 53checked Oct. 9, 2026
Certified for: Total trihalomethanes (TTHM), Lead
Ninja HydraSense Countertop Water Filtration System (WF1001)
Countertop
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 9, 2026
Certified for: Total trihalomethanes (TTHM), Lead
Water testing near Greenbrier
TapBuff hasn’t read Arkansas’s list of certified labs yet. The national page links every state’s own list.
Certified labs, state by stateZIP codes in Greenbrier
Which ZIP codes are in Greenbrier: 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.
Near Greenbrier
Other towns in Faulkner County with a page of their own.
What to do next
- Read Greenbrier Waterworks’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- About Haloacetic acids (HAA5)What it does to health, where it comes from, and the certification claim that addresses it.About Haloacetic acids (HAA5)
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water