Is Wappappello, MO Tap Water Safe to Drink?
Graded A, with 2 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
91.5/100
waterverge.com Wappappello, MO — Water Quality Report
Wappappello's drinking water received a grade of A (91.5 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 1,400 residents using groundwater.
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 5 violations on record, including 0 health-based violations. 2 remain unresolved.
What to know about Wappappello's water
Wappappello ranks #55 out of 509 cities in Missouri for water quality, placing it above average in the state.
Wappappello relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.
As a small community water system, Wappappello may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Wappappello, MO water safe to drink?
Wappappello's tap water meets most EPA standards but has areas that warrant attention. With a grade of A (91.5/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 1,400 residents using groundwater (wells).
Recent water quality updates for Wappappello
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Wappappello's water quality assessment. Grade: A (91.5/100).
Contaminants: Coliform (TCR).
Contaminants: Coliform (TCR).
Contaminants: Consumer Confidence Rule.
Key contaminant findings
Based on the most recent EPA sampling data for Wappappello's water supply.
Well within EPA limits.
Violation history
Wappappello's water system has 5 total violations on record, including 0 health-based violations. 2 remain unresolved.
Where does Wappappello's water come from?
Wappappello's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,400 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.
What Wappappello 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.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Drought conditions
D2 — severe droughtWayne County is currently in D2 (severe drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.
Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.
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 Wappappello compares by contaminant
Explore where Wappappello ranks among all Missouri cities for specific contaminants.
Water source & infrastructure
Where Wappappello's water comes from
Wappappello's drinking water is drawn from underground aquifers through wells.
Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.
Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.
The system is operated by local government ownership and serves approximately 1,400 people through 1 water system.
Water systems serving Wappappello
| System Name | PWSID | Population | Source |
|---|---|---|---|
| WAYNE & BUTLER COUNTY PWSD 4 | MO4021311 | 1,400 | GW |
How Wappappello compares
Full Missouri rankings →Wappappello's score of 91.5/100 is above the average of 62/100 among major Missouri cities. It outscores 10 of 10 nearby cities.
Nearby cities
View Missouri rankings →Learn more about your water
Guides and resources related to Wappappello's water quality findings.
Explore water quality across Wayne
Frequently asked questions
Is Wappappello, MO tap water safe to drink?
Wappappello's water quality earned a grade of A (91.5/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #55 out of 509 cities tested in Missouri.
What contaminants are in Wappappello's water?
Lead was measured at 0.0 ppb (90th percentile). 5 violations are on record.
How is Wappappello'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 Wappappello?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Wappappello's water come from?
Wappappello's water is sourced from Groundwater. The city has 1 water system serving approximately 1,400 residents.
Is Wappappello's groundwater at risk of contamination?
Wappappello 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 5 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 Wappappello's water compare to other cities?
Wappappello ranks #55 out of 509 cities in Missouri (better than 89% of state cities) and #1667 out of 15744 cities nationally (89th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Wappappello's small water system affect quality?
Wappappello's system serves approximately 1,400 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 5 violations on record.