Is Blairstown, MO tap water safe?
The short answer
2 of the 2 utilities serving Blairstown have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: Henry County PWSD 4 and Blairstown PWS.
Henry County PWSD 4, which serves the most people here, has 2 results above the legal limit and 1 result above the health goal. The worst: Total trihalomethanes (TTHM) at 64.7 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 Blairstown’s ZIP codes, from EPA’s estimates.
- Open report
Henry County PWSD 4
Missouri · serves 1,140 people · under 100 in Blairstown
2 results above the legal limit and 1 result above the health goal. The worst: Total trihalomethanes (TTHM) at 64.7 ppb, above the legal limit.
9 health-based violations since 2016
- Open report
Blairstown PWS
Missouri · serves 123 people · under 100 in Blairstown
2 results above the legal limit and 1 result above the health goal. The worst: Total trihalomethanes (TTHM) at 73 ppb, above the legal limit.
6 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 Henry County PWSD 4’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 Blairstown
The 3 labs Missouri certifies closest to Blairstown, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Missouri American Water Co.-Warrensburg
Warrensburg, MO · about 21 miles
Certified for bacteria
City of Independence Water Department
Sugar Creek, MO · about 49 miles
Certified for bacteria
Tri-County Water Authority
Independence, MO · about 49 miles
Certified for bacteria
Missouri State Public Health Laboratory: Coliform and E. coli testing for private wells and other private drinking water sources, in kits from your local public health agency. A free state courier can carry the sample to the lab overnight. The handling fee is $10, by check or money order. Private Drinking Water Bacteriological Testing, Missouri Department of Health and Senior Services.
All 64 certified labs for MissouriZIP codes in Blairstown
Which ZIP codes are in Blairstown: 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: Missouri DNR, certified microbiological and chemical laboratories; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Blairstown
Other towns in Henry County with a page of their own.
What to do next
- Read Henry County PWSD 4’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- About Total trihalomethanes (TTHM)What it does to health, where it comes from, and the certification claim that addresses it.About Total trihalomethanes (TTHM)
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water