Is Westphalia, MO Tap Water Safe to Drink?
Graded B+, with 4 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
84.7/100
waterverge.com Westphalia, MO — Water Quality Report
Westphalia's drinking water received a grade of B+ (84.7 out of 100), indicating good water quality. The city's 2 water systems serve approximately 1,173 residents using groundwater.
Lead levels were measured at 6.4 ppb (90th percentile), which is within EPA limits but above recommended levels. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 31 violations on record, including 18 health-based violations. 4 remain unresolved.
What to know about Westphalia's water
Westphalia ranks #234 out of 509 cities in Missouri for water quality, placing it mid-range in the state.
Westphalia 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.
While lead levels are within EPA limits, they are above the recommended 5 ppb threshold that health organizations consider ideal. A point-of-use filter adds an extra layer of protection.
As a small community water system, Westphalia may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Westphalia, MO water safe to drink?
Westphalia's drinking water has significant quality concerns based on EPA testing data. With a grade of B+ (84.7/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 1,173 residents using groundwater (wells).
Recent water quality updates for Westphalia
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Westphalia's water quality assessment. Grade: B+ (84.7/100).
Contaminants: Public Notice.
Contaminants: Revised Total Coliform Rule.
Federal disaster declaration (FEMA DR-4317). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-4250). Flood event — may have impacted local water infrastructure.
1 health-based. Contaminants: Coliform (TCR).
Key contaminant findings
Based on the most recent EPA sampling data for Westphalia's water supply.
Within EPA limits but above the American Academy of Pediatrics recommended level of 1 ppb. An NSF 53-certified filter provides additional protection.
Violation history
Westphalia's water system has 31 total violations on record, including 18 health-based violations. 4 remain unresolved. 4 violations were issued in the last 5 years.
Flood & environmental risk
Osage County has experienced 7 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 Maries River At Westphalia.
Where does Westphalia's water come from?
Westphalia's drinking water comes from groundwater (wells), supplied by 2 water systems serving approximately 1,173 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Maries River At Westphalia (river).
What Westphalia residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Westphalia'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.
Run cold water for 30 seconds before drinking, especially in the morning. Lead and copper leach from household plumbing when water sits in pipes.
Westphalia'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
Top industrial polluters within 10 miles of Westphalia
Industrial polluters nearby
Reported releases to surface water by facilities near Westphalia, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
QUAKER WINDOW PRODUCTS CO FREEBURG, MO65035 | — | — | 9.2 mi |
BEST BLOCK - JEFFERSON CITY PLANT JEFFERSON CITY, MO65101 | — | — | 9.7 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Flood & disaster history
Osage County has experienced 7 federally declared disasters since 1986. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Recommended water filters
Based on contaminants detected in Westphalia's water supply, we recommend the following filter types.
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. | 6.4 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Westphalia compares by contaminant
Explore where Westphalia ranks among all Missouri cities for specific contaminants.
Water source & infrastructure
Where Westphalia's water comes from
Westphalia'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 1,173 people through 2 water systems.
Water bodies near Westphalia
Westphalia is located near 1 notable water body. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Westphalia
| System Name | PWSID | Population | Source |
|---|---|---|---|
| OSAGE COUNTY PWSD 2 NORTH | MO3024438 | 705 | GW |
| OSAGE COUNTY PWSD 2 SOUTH | MO3024441 | 468 | GW |
How Westphalia compares
Full Missouri rankings →Westphalia's score of 84.7/100 is above the average of 62/100 among major Missouri cities. It outscores 9 of 10 nearby cities.
Nearby cities
View Missouri rankings →About Westphalia, MO
Learn more about your water
Guides and resources related to Westphalia's water quality findings.
Explore water quality across Osage
Frequently asked questions
Is Westphalia, MO tap water safe to drink?
Westphalia's water quality earned a grade of B+ (84.7/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #234 out of 509 cities tested in Missouri.
What contaminants are in Westphalia's water?
Lead was measured at 6.4 ppb (90th percentile). 31 violations are on record.
How is Westphalia'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 Westphalia?
While lead levels are within EPA limits, a filter adds extra protection. Based on current data, basic filtration should suffice for additional peace of mind.
Where does Westphalia's water come from?
Westphalia's water is sourced from Groundwater. The city has 2 water systems serving approximately 1,173 residents.
What health violations has Westphalia's water system had?
Westphalia has 18 health-based violations on record. The most recent violation was recorded in April 2024. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 4 violations remain unresolved.
Is Westphalia's groundwater at risk of contamination?
Westphalia 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 31 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 Westphalia's water compare to other cities?
Westphalia ranks #234 out of 509 cities in Missouri (better than 54% of state cities) and #5741 out of 15744 cities nationally (64th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.