Is Fairfax, MO Tap Water Safe to Drink?
Graded A+ with no contaminants above EPA limits. Here's everything we tested and how Fairfax ranks. What to do next ↓
96.9/100
waterverge.com Fairfax, MO — Water Quality Report
Fairfax's drinking water received a grade of A+ (96.9 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 638 residents using purchased ground 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 2 violations on record, including 0 health-based violations. All violations have been resolved.
What to know about Fairfax's water
Fairfax ranks #3 out of 509 cities in Missouri for water quality, placing it one of the best in the state.
Fairfax purchases its water from a regional wholesaler, meaning quality depends on both the supplier's treatment and the local distribution system's condition.
As a small community water system, Fairfax may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Fairfax, MO water safe to drink?
Based on EPA testing data, Fairfax's tap water is generally safe to drink. The water system earned a grade of A+ (96.9/100), meeting federal drinking water standards across key contaminant categories. The city's 1 water system serves approximately 638 residents using groundwater (wells).
Recent water quality updates for Fairfax
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Fairfax's water quality assessment. Grade: A+ (96.9/100).
Federal disaster declaration (FEMA DR-4435). Flood event — may have impacted local water infrastructure.
Contaminants: Coliform (TCR).
Federal disaster declaration (FEMA DR-4012). Flood event — may have impacted local water infrastructure.
Contaminants: Nitrate-Nitrite.
Key contaminant findings
Based on the most recent EPA sampling data for Fairfax's water supply.
Well within EPA limits.
Violation history
Fairfax's water system has 2 total violations on record, including 0 health-based violations. All violations have been resolved.
Flood & environmental risk
Atchison County has experienced 9 federally declared disasters since 1965. 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 Tarkio River At Fairfax.
Where does Fairfax's water come from?
Fairfax's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 638 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Tarkio River At Fairfax (river).
What Fairfax residents can do
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.
Fairfax'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
Atchison County has experienced 9 federally declared disasters since 1965. 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 Fairfax compares by contaminant
Explore where Fairfax ranks among all Missouri cities for specific contaminants.
Water source & infrastructure
Where Fairfax's water comes from
Fairfax purchases its water supply from a regional wholesale provider rather than treating raw water directly.
Water quality depends on both the wholesaler's treatment standards and the condition of Fairfax's local distribution pipes and storage facilities.
Purchased water systems are common in suburban areas and smaller communities that lack the infrastructure for independent treatment.
The system is operated by local government ownership and serves approximately 638 people through 1 water system.
Water bodies near Fairfax
Fairfax is located near 1 notable water body. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Fairfax
| System Name | PWSID | Population | Source |
|---|---|---|---|
| FAIRFAX PWS | MO1010265 | 638 | GWP |
How Fairfax compares
Full Missouri rankings →Fairfax's score of 96.9/100 is above the average of 62/100 among major Missouri cities. It outscores 10 of 10 nearby cities.
Nearby cities
View Missouri rankings →About Fairfax, MO
Wikipedia →Fairfax is a city in Clark Township, Atchison County, Missouri, United States. The population was 648 at the 2020 census.
Learn more about your water
Guides and resources related to Fairfax's water quality findings.
Explore water quality across Atchison
Frequently asked questions
Is Fairfax, MO tap water safe to drink?
Fairfax's water quality earned a grade of A+ (96.9/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #3 out of 509 cities tested in Missouri.
What contaminants are in Fairfax's water?
Lead was measured at 0.0 ppb (90th percentile). 2 violations are on record.
How is Fairfax'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 Fairfax?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Fairfax's water come from?
Fairfax's water is sourced from Purchased ground water. The city has 1 water system serving approximately 638 residents.
Is Fairfax's groundwater at risk of contamination?
Fairfax uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 2 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.
How does Fairfax's water compare to other cities?
Fairfax ranks #3 out of 509 cities in Missouri (better than 99% of state cities) and #133 out of 15744 cities nationally (99th percentile). The grade of A+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Fairfax's small water system affect quality?
Fairfax's system serves approximately 638 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 2 violations on record.