Is Wahpeton, ND tap water safe?
The short answer
Neither of the 2 utilities serving Wahpeton has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s records.
Southeast WUD (East), which serves the most people here, has 3 results above the health goal. The worst: Arsenic at 8.9 ppb, above the health goal. 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 Wahpeton’s ZIP codes, from EPA’s estimates.
- Open report
Southeast WUD (East)
North Dakota · serves 4,225 people · about 340 in Wahpeton
3 results above the health goal. The worst: Arsenic at 8.9 ppb, above the health goal.
No health-based violations since 2016
- Open report
City of Wahpeton
North Dakota · serves 7,766 people · about 310 in Wahpeton
2 results above the health goal and 1 result above EPA’s health benchmark. The worst: Lithium at 62.6 ppb, above EPA’s health benchmark.
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 Southeast WUD (East)’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 Wahpeton
TapBuff hasn’t read North Dakota’s list of certified labs yet. The national page links every state’s own list.
Certified labs, state by stateWhich ZIP codes are in Wahpeton: 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 Wahpeton
Towns nearby with a page of their own.
What to do next
- Read Southeast WUD (East)’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