Is Williamsburg, KS Tap Water Safe to Drink?
Graded B+, with 13 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
81.7/100
waterverge.com Williamsburg, KS — Water Quality Report
Williamsburg's drinking water received a grade of B+ (81.7 out of 100), indicating good water quality. The city's 2 water systems serve approximately 2,671 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 26 violations on record, including 5 health-based violations. 13 remain unresolved.
What to know about Williamsburg's water
Williamsburg ranks #141 out of 323 cities in Kansas 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, Williamsburg may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Williamsburg, KS water safe to drink?
Williamsburg's drinking water has significant quality concerns based on EPA testing data. With a grade of B+ (81.7/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 2,671 residents using surface water (rivers, lakes, or reservoirs).
Recent water quality updates for Williamsburg
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Williamsburg's water quality assessment. Grade: B+ (81.7/100).
Contaminants: Lead and Copper Rule.
Contaminants: Public Notice.
1 health-based. Contaminants: Total Haloacetic Acids (HAA5).
Federal disaster declaration (FEMA DR-3236). Hurricane event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-378). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Williamsburg's water supply.
Well within EPA limits.
Violation history
Williamsburg's water system has 26 total violations on record, including 5 health-based violations. 13 remain unresolved. 1 violation was issued in the last 5 years.
Flood & environmental risk
Franklin County has experienced 2 federally declared disasters since 1973. 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 Marais Des Cygnes R Nr Pomona.
Where does Williamsburg's water come from?
Williamsburg's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 2 water systems serving approximately 2,671 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include Marais Des Cygnes R Nr Pomona (river).
What Williamsburg residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Williamsburg'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.
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
Franklin County has experienced 2 federally declared disasters since 1973. 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 Williamsburg compares by contaminant
Explore where Williamsburg ranks among all Kansas cities for specific contaminants.
Water source & infrastructure
Where Williamsburg's water comes from
Williamsburg'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 2,671 people through 2 water systems.
Water bodies near Williamsburg
Williamsburg is located near 1 notable water body. As a surface water system, these water bodies may directly influence the city's drinking water supply.
Water systems serving Williamsburg
| System Name | PWSID | Population | Source |
|---|---|---|---|
| FRANKLIN CO RWD 4 | KS2005913 | 2,281 | SWP |
| WILLIAMSBURG, CITY OF | KS2005914 | 390 | SWP |
How Williamsburg compares
Full Kansas rankings →Williamsburg's score of 81.7/100 is above the average of 62/100 among major Kansas cities. It outscores 8 of 10 nearby cities.
Nearby cities
View Kansas rankings →About Williamsburg, KS
Wikipedia →Williamsburg is a city in Franklin County, Kansas, United States. As of the 2020 census, the population of the city was 390.
Learn more about your water
Guides and resources related to Williamsburg's water quality findings.
Explore water quality across Franklin
Frequently asked questions
Is Williamsburg, KS tap water safe to drink?
Williamsburg's water quality earned a grade of B+ (81.7/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #141 out of 323 cities tested in Kansas.
What contaminants are in Williamsburg's water?
Lead was measured at 0.0 ppb (90th percentile). 26 violations are on record.
How is Williamsburg'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 Williamsburg?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Williamsburg's water come from?
Williamsburg's water is sourced from Purchased surface water. The city has 2 water systems serving approximately 2,671 residents.
What health violations has Williamsburg's water system had?
Williamsburg has 5 health-based violations on record. The most recent violation was recorded in November 2023. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 13 violations remain unresolved.
How does Williamsburg's water compare to other cities?
Williamsburg ranks #141 out of 323 cities in Kansas (better than 56% of state cities) and #7346 out of 15744 cities nationally (53th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.