Is Douglass, KS Tap Water Safe to Drink?
Graded B+, with 5 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
82.3/100
waterverge.com Douglass, KS — Water Quality Report
Douglass's drinking water received a grade of B+ (82.3 out of 100), indicating good water quality. The city's 1 water system serves approximately 1,551 residents using purchased surface water.
Lead levels were measured at 6.1 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 14 violations on record, including 4 health-based violations. 5 remain unresolved.
What to know about Douglass's water
Douglass ranks #127 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.
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, Douglass may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Douglass, KS water safe to drink?
Douglass's drinking water has significant quality concerns based on EPA testing data. With a grade of B+ (82.3/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 1,551 residents using surface water (rivers, lakes, or reservoirs).
Recent water quality updates for Douglass
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Douglass's water quality assessment. Grade: B+ (82.3/100).
Contaminants: Revised Total Coliform Rule, Chlorine.
Contaminants: Total Haloacetic Acids (HAA5), TTHM.
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-588). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Douglass'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
Douglass's water system has 14 total violations on record, including 4 health-based violations. 5 remain unresolved. 2 violations were issued in the last 5 years.
Flood & environmental risk
Butler County has experienced 5 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.
Where does Douglass's water come from?
Douglass's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 1 water system serving approximately 1,551 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment.
What Douglass residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Douglass'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.
Douglass'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
Butler County has experienced 5 federally declared disasters since 1965. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Recommended water filters
Based on contaminants detected in Douglass'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. | 6.1 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Douglass compares by contaminant
Explore where Douglass ranks among all Kansas cities for specific contaminants.
Water source & infrastructure
Where Douglass's water comes from
Douglass'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 1,551 people through 1 water system.
Water systems serving Douglass
| System Name | PWSID | Population | Source |
|---|---|---|---|
| DOUGLASS, CITY OF | KS2001510 | 1,551 | SWP |
How Douglass compares
Full Kansas rankings →Douglass's score of 82.3/100 is above the average of 62/100 among major Kansas cities. It outscores 8 of 10 nearby cities.
Nearby cities
View Kansas rankings →About Douglass, KS
Learn more about your water
Guides and resources related to Douglass's water quality findings.
Explore water quality across Butler
Frequently asked questions
Is Douglass, KS tap water safe to drink?
Douglass's water quality earned a grade of B+ (82.3/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #127 out of 323 cities tested in Kansas.
What contaminants are in Douglass's water?
Lead was measured at 6.1 ppb (90th percentile). 14 violations are on record.
How is Douglass'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 Douglass?
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 Douglass's water come from?
Douglass's water is sourced from Purchased surface water. The city has 1 water system serving approximately 1,551 residents.
What health violations has Douglass's water system had?
Douglass has 4 health-based violations on record. The most recent violation was recorded in August 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 5 violations remain unresolved.
How does Douglass's water compare to other cities?
Douglass ranks #127 out of 323 cities in Kansas (better than 61% of state cities) and #7054 out of 15744 cities nationally (55th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Douglass's small water system affect quality?
Douglass's system serves approximately 1,551 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 14 violations on record.