Is Blairstown, MO Tap Water Safe to Drink?
Graded A-, with 5 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
86.3/100
waterverge.com Blairstown, MO — Water Quality Report
Blairstown's drinking water received a grade of A- (86.3 out of 100), indicating good water quality. The city's 2 water systems serve approximately 1,645 residents using purchased surface water.
Lead levels were measured at 0.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 30 violations on record, including 18 health-based violations. 5 remain unresolved.
What to know about Blairstown's water
Blairstown ranks #194 out of 509 cities in Missouri for water quality, placing it mid-range in the state.
The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection.
As a small community water system, Blairstown may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Blairstown, MO water safe to drink?
Blairstown's drinking water has significant quality concerns based on EPA testing data. With a grade of A- (86.3/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 1,645 residents using surface water (rivers, lakes, or reservoirs).
Recent water quality updates for Blairstown
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Blairstown's water quality assessment. Grade: A- (86.3/100).
2 health-based. Contaminants: Total Haloacetic Acids (HAA5), TTHM.
2 health-based. Contaminants: Total Haloacetic Acids (HAA5), TTHM.
1 health-based. Contaminants: TTHM.
Federal disaster declaration (FEMA DR-3232). Hurricane event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-995). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Blairstown's water supply.
Well within EPA limits.
Violation history
Blairstown's water system has 30 total violations on record, including 18 health-based violations. 5 remain unresolved.
Flood & environmental risk
Henry County has experienced 3 federally declared disasters since 1986. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include South Grand River At Urich, Big Creek Near Blairstown.
Where does Blairstown's water come from?
Blairstown's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 2 water systems serving approximately 1,645 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include South Grand River At Urich (river), Big Creek Near Blairstown (river).
What Blairstown residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Blairstown's water.
Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.
Blairstown's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Flood & disaster history
Henry County has experienced 3 federally declared disasters since 1986. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 0.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Blairstown compares by contaminant
Explore where Blairstown ranks among all Missouri cities for specific contaminants.
Water source & infrastructure
Where Blairstown's water comes from
Blairstown's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.
Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards.
These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge.
The system is operated by local government ownership and serves approximately 1,645 people through 2 water systems.
Water bodies near Blairstown
Blairstown is located near 2 notable water bodies. As a surface water system, these water bodies may directly influence the city's drinking water supply.
Water systems serving Blairstown
| System Name | PWSID | Population | Source |
|---|---|---|---|
| HENRY COUNTY PWSD 4 | MO1021175 | 1,140 | SWP |
| URICH PWS | MO1010808 | 505 | SWP |
How Blairstown compares
Full Missouri rankings →Blairstown's score of 86.3/100 is above the average of 62/100 among major Missouri cities. It outscores 9 of 10 nearby cities.
Nearby cities
View Missouri rankings →Learn more about your water
Guides and resources related to Blairstown's water quality findings.
Explore water quality across Henry
Frequently asked questions
Is Blairstown, MO tap water safe to drink?
Blairstown's water quality earned a grade of A- (86.3/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #194 out of 509 cities tested in Missouri.
What contaminants are in Blairstown's water?
Lead was measured at 0.0 ppb (90th percentile). 30 violations are on record.
How is Blairstown's water quality grade calculated?
The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.
Do I need a water filter in Blairstown?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Blairstown's water come from?
Blairstown's water is sourced from Purchased surface water. The city has 2 water systems serving approximately 1,645 residents.
What health violations has Blairstown's water system had?
Blairstown has 18 health-based violations on record. The most recent violation was recorded in January 2020. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 5 violations remain unresolved.
How does Blairstown's water compare to other cities?
Blairstown ranks #194 out of 509 cities in Missouri (better than 62% of state cities) and #4780 out of 15744 cities nationally (70th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.