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WaterVerge

Water quality report · updated Jul 2026

Is Wappapello, MO Tap Water Safe to Drink?

Graded D+, with 23 unresolved violations on record. See what was cited — and what it means for your tap. What to do ↓

0 contaminants over a legal limit
1.8 ppb lead, 90th percentile · low
23 unresolved violations
946 people served by 7 water systems

PWSID MO4036064 · moderate data confidence · private utility

Reviewed by WaterVerge Editorial Team · Last updated July 2026
D 50 / 100

#448 of 487Missouri cities
How we grade →

01The verdict: is Wappapello water safe?

Wappapello's drinking water has significant quality concerns based on EPA testing data. With a grade of D+ (50/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 7 water systems serve approximately 946 residents using groundwater (wells).

The concern

23 unresolved violations on record

EPA records show open compliance items for this system. Most are administrative, but unresolved items are worth watching.

See what was cited ↓
The good news

Lead is well under the limit

90th-percentile lead is 1.8 ppb — beneath the 15 ppb federal action level and under the 5 ppb watch threshold.

See the trend ↓
Keep watching

44 violations in the last five years

Recent compliance history is the best predictor of future problems — the year-by-year record is below.

See the record ↓

Wappapello's drinking water received a grade of D+ (50 out of 100), indicating poor water quality. The city's 7 water systems serve approximately 946 residents using groundwater.

Lead levels were measured at 1.8 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 169 violations on record, including 12 health-based violations. 23 remain unresolved.

Wappapello ranks #448 out of 487 cities in Missouri for water quality, placing it among the lowest-rated in the state. Wappapello 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, Wappapello may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities. The system has seen 44 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

How the 50/100 breaks down Methodology →
ViolationsHistorical violation record including health-based and monitoring violations.
0 / 45F
Lead & CopperLead at 1.8 ppb (90th percentile).
20 / 20A
ContaminantsPFAS + legacy contaminant analysis.
17 / 20B
ComplianceMonitoring and reporting compliance with EPA regulations.
8 / 10B
Source RiskWater source: Groundwater.
5 / 5A

02What's in Wappapello's water

Every contaminant flagged in Wappapello, on one shared scale: distance to its own legal limit. The red line is the limit — anything past it is out of compliance, and the closer a bar gets, the less headroom the system has.

1 detection · sorted by % of legal limit
Over the limit Elevated — watch Within limits
0 50% LEGAL LIMIT 150%
1 contaminant tested under EPA SDWIS, LCR and UCMR programs · 1 detected · not yet tested for PFAS under UCMR 5

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 1.8 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

03Wappapello's ten-year track record

Each box is one year. A green check means no EPA violations; a numbered badge counts that year's violations — red if any were health-based, amber if they were monitoring or paperwork issues. The system has 169 violations on record, including 12 health-based violations. 23 remain unresolved.

4 of the last ten years were clean. The numbered years had EPA violations — red when any were health-based, amber when they were paperwork or missed-testing issues.

1 health-based in 10 yrs 50 monitoring & paperwork 13 still unresolved
UpdateWater quality data updatedLatest EPA compliance and testing data incorporated into Wappapello's water quality assessment. Grade: D+ (50/100).
Violation1 drinking water violation recordedContaminants: Consumer Confidence Rule.Open
Violation2 drinking water violations recordedContaminants: Total Haloacetic Acids (HAA5), TTHM.Resolved
Violation5 drinking water violations recordedContaminants: LEAD AND COPPER RULE REVISIONS, Lead and Copper Rule.Open
DisasterSEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS AND FLOODINGFederal disaster declaration (FEMA DR-4317). Flood event — may have impacted local water infrastructure.
DisasterSEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODINGFederal disaster declaration (FEMA DR-3374). Flood event — may have impacted local water infrastructure.
Lead, 90th percentileppb · lower is better
05101520EPA action level · 15 ppb1993 — 0 ppb1994 — 2 ppb1995 — 3.7 ppb1998 — 0 ppb1999 — 0 ppb2001 — 0 ppb2002 — 0.95 ppb2004 — 1.4 ppb2006 — 0 ppb2007 — 0 ppb2010 — 0 ppb2012 — 4.9 ppb2013 — 4.9 ppb2015 — 7.8 ppb2016 — 7.8 ppb2018 — 2.9 ppb2019 — 2.9 ppb2021 — 0 ppb2022 — 3.2 ppb2024 — 0.54 ppb2025 — 0.62 ppb0.6219932001201020182025

Up 0.62 ppb since 1993. Latest reading: 0.62 ppb (2025) — 4% of the action level. Sampled at higher-risk homes (90th percentile).

04Where Wappapello's water comes from

Wappapello's drinking water is drawn from underground aquifers through wells.

Source

Groundwater

Underground aquifers reached by wells — naturally filtered, but can carry minerals like arsenic and nitrate.

Treatment

Local treatment

Groundwater generally needs less treatment — typically disinfection and, where needed, mineral removal.

Distribution

7 systems

7 water systems, operated under private ownership.

Delivery

946 people

Residents served across Wappapello's service area.

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 private ownership and serves approximately 946 people through 7 water systems.

System namePWSIDPopulationSource
COMMUNITY WATER SYSTEM MO4036064 378 Groundwater
LIBERTY UTILITIES LAKELAND HTS WATER CO MO4036069 290 Purchased Groundwater
RIDGETOP WATERWORKS CORP SUBDIVISION MO4036224 175 Groundwater
LOST CREEK WATER COMPANY MO4036306 133 Groundwater
PINE TRAILS WATER CO MO4036308 110 Groundwater
CORNER WATER COMPANY MO4036307 75 Groundwater
JOHNS BRANCH WATER CO MO4036309 75 Groundwater

Water bodies near Wappapello

St. Francis River At Wappapello · river

These water bodies shape the regional watershed and can indirectly affect groundwater quality.

05Pressure on Wappapello's watershed

Outside forces that shape what reaches the treatment plant. None of these is a verdict on the tap by itself — but each adds pressure worth knowing about.

Flood & storm history

Recurring — declared disasters

6 federal disaster declarations on record for Wayne County. Flooding and severe storms can overwhelm treatment plants, cause sewage overflows, and push runoff into supplies.

SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS AND FLOODING Jun 2017 · DR-4317
SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING Jan 2016 · DR-3374
HURRICANE KATRINA EVACUATION Sep 2005 · DR-3232

Drought

D1 — moderate drought

Wayne County is in D1 (moderate drought) per the U.S. Drought Monitor (week of Jul 2026). Drought can raise disinfection-byproduct levels and taste/odor issues as utilities draw from lower reservoirs.

Weeks at D2+ in the last 5 years17 wks
Months in D2+ over the last 30 years4.8%

06How Wappapello compares

Scores for nearby Missouri cities on one line, with the average marked.

Kansas City
79.2 · B
Chesterfield
74.8 · B-
Columbia
61.4 · C
Wappapello (this city)
50 · D+
O Fallon
43.4 · F
Springfield
37.1 · F

dashed line = Missouri average (67/100)

Wappapello scores 50/100below the Missouri average of 67/100. It outscores 3 of 10 nearby cities. Full Missouri rankings →

Wayne water quality rankings
Compare all cities in the county — grades, violations, and contaminant data side by side.

07What to do at home

Steps matched to what testing actually found in Wappapello's water — not generic advice.

Extra protection

A basic carbon filter still helps

Wappapello's water meets federal standards, but a simple carbon filter improves taste and adds a margin of safety against short-term issues.

Compare tested filters →
Know your report

Read your utility's annual report

Every utility must publish a yearly Consumer Confidence Report with its own testing results. It pairs well with the independent data on this page.

How to read a CCR →
Stay informed

Watch for Wappapello alerts

This area has a history of flood declarations — after severe weather, watch for boil-water advisories from the utility, and check the live alerts on this page.

All water alerts →

Frequently asked questions

Is Wappapello, MO tap water safe to drink?

Wappapello's water quality earned a grade of D+ (50/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #448 out of 487 cities tested in Missouri.

What contaminants are in Wappapello's water?

Lead was measured at 1.8 ppb (90th percentile). 169 violations are on record.

How is Wappapello'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 Wappapello?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Wappapello's water come from?

Wappapello's water is sourced from Groundwater. The city has 7 water systems serving approximately 946 residents.

What health violations has Wappapello's water system had?

Wappapello has 12 health-based violations on record. The most recent violation was recorded in July 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 23 violations remain unresolved.

Is Wappapello's groundwater at risk of contamination?

Wappapello 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 169 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 Wappapello's water compare to other cities?

Wappapello ranks #448 out of 487 cities in Missouri (better than 8% of state cities) and #12924 out of 15382 cities nationally (16th percentile). The grade of D+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

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Service area: 1 ZIP code across Wayne.
Show ZIP codes 63966
Sources: EPA SDWIS & ECHO · UCMR 3–5 · Lead & Copper Rule samples · EPA TRI · U.S. Drought Monitor · FEMA declarations. Data last updated Jul 2026. Analysis by the WaterVerge Editorial Team · methodology.