Is Olpe, KS Tap Water Safe to Drink?
Graded A-, with 9 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
85.3/100
waterverge.com Olpe, KS — Water Quality Report
Olpe's drinking water received a grade of A- (85.3 out of 100), indicating good water quality. The city's 2 water systems serve approximately 992 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 15 violations on record, including 4 health-based violations. 9 remain unresolved.
What to know about Olpe's water
Olpe ranks #79 out of 323 cities in Kansas for water quality, placing it above average 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, Olpe may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Olpe, KS water safe to drink?
Olpe's drinking water has significant quality concerns based on EPA testing data. With a grade of A- (85.3/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 992 residents using surface water (rivers, lakes, or reservoirs).
Recent water quality updates for Olpe
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Olpe's water quality assessment. Grade: A- (85.3/100).
Contaminants: Revised Total Coliform Rule, Chlorine.
Contaminants: Lead and Copper Rule.
1 health-based. Contaminants: Coliform (TCR).
Federal disaster declaration (FEMA DR-3236). Hurricane event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-1000). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Olpe's water supply.
Well within EPA limits.
Violation history
Olpe's water system has 15 total violations on record, including 4 health-based violations. 9 remain unresolved. 2 violations were issued in the last 5 years.
Flood & environmental risk
Lyon 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. Local water sources include Cottonwood R.
Where does Olpe's water come from?
Olpe's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 2 water systems serving approximately 992 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include Cottonwood R (river).
What Olpe residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Olpe'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.
Olpe'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 Olpe
Industrial polluters nearby
Reported releases to surface water by facilities near Olpe, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
BUNGE N.A. (OPD WEST) INC. EMPORIA, KS66801 | — | — | 9.7 mi |
CAMSO MANUFACTURING USA LTD. (EMPORIA DIVISION) EMPORIA, KS66801 | — | — | 9.2 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Flood & disaster history
Lyon 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.
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 Olpe compares by contaminant
Explore where Olpe ranks among all Kansas cities for specific contaminants.
Water source & infrastructure
Where Olpe's water comes from
Olpe'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 992 people through 2 water systems.
Water bodies near Olpe
Olpe 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 Olpe
| System Name | PWSID | Population | Source |
|---|---|---|---|
| OLPE, CITY OF | KS2011112 | 513 | SWP |
| LYON CO RWD 3 | KS2011113 | 479 | SWP |
How Olpe compares
Full Kansas rankings →Olpe's score of 85.3/100 is above the average of 62/100 among major Kansas cities. It outscores 9 of 10 nearby cities.
Nearby cities
View Kansas rankings →About Olpe, KS
Learn more about your water
Guides and resources related to Olpe's water quality findings.
Explore water quality across Lyon
Frequently asked questions
Is Olpe, KS tap water safe to drink?
Olpe's water quality earned a grade of A- (85.3/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #79 out of 323 cities tested in Kansas.
What contaminants are in Olpe's water?
Lead was measured at 0.0 ppb (90th percentile). 15 violations are on record.
How is Olpe'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 Olpe?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Olpe's water come from?
Olpe's water is sourced from Purchased surface water. The city has 2 water systems serving approximately 992 residents.
What health violations has Olpe's water system had?
Olpe has 4 health-based violations on record. The most recent violation was recorded in December 2024. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 9 violations remain unresolved.
How does Olpe's water compare to other cities?
Olpe ranks #79 out of 323 cities in Kansas (better than 76% of state cities) and #5402 out of 15744 cities nationally (66th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.