Community Water System · PWS KS2012105
Osawatomie, City Of
Osawatomie, Kansas 66064 - drinking water served from surface water sources to 4,280 people, tracked in EPA SDWIS and UCMR5.
- 4,280
- People served
- 184
- EPA violations
- 80
- Health-based
- No PFAS
- UCMR5 result
The verdict
EPA records 184 drinking-water violations at Osawatomie, City Of, 43% of them health-based - above the Kansas per-system average.
- 184
- Total EPA violations on record
- 43%
- Health-based (MCL / treatment failure)
- 4,280
- People served by this system
- 0
- PFAS compounds detected (UCMR5)
Water Quality Snapshot: Osawatomie, City Of
Osawatomie, City Of is a local-owned community water system that delivers drinking water to 4,280 residents in Osawatomie, Kansas (Miami County) through 1,665 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 184 total violations for this system , of which 80 (43%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 70 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.
The most frequently cited contaminant at this system is TTHM, recorded in 28 violations (MCL, health-based). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.
Across Kansas, EPA tracks 957 public water systems serving 2,894,673 people, with 84,344 cumulative violations and 33,424 health-based violations on record. About 99% of systems in the state carry at least one violation, and state-wide the average per system is 88.1 violations. Statewide, 89 of 103 UCMR5-tested systems have reported PFAS detections (86.4%).
Osawatomie, City Of's 184 violations sit above the Kansas average.
All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 1,665
- County
- Miami
- School/Daycare
- No
- MCL Violations
- 62
- Monitoring Violations
- 70
- Treatment Tech Violations
- 18
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MCL | 28 | 2022 |
| Total Haloacetic Acids (HAA5) | MCL | 26 | 2024 |
| Public Notice | Other | 14 | 2022 |
| CARBON, TOTAL | TT | 10 | 2021 |
| Revised Total Coliform Rule | MON | 8 | 2019 |
| Interim Enhanced Surface Water Treatment Rule | TT | 8 | 2024 |
| CARBON, TOTAL | MR | 8 | 2018 |
| Total Haloacetic Acids (HAA5) | MR | 5 | 2014 |
| TTHM | MR | 5 | 2014 |
| 1,1-Dichloroethylene | MR | 4 | 1989 |
| Vinyl chloride | MR | 4 | 1989 |
| Benzene | MR | 4 | 1989 |
| Interim Enhanced Surface Water Treatment Rule | MR | 4 | 2021 |
| Surface Water Treatment Rule | MR | 4 | 2021 |
| 1,1,1-Trichloroethane | MR | 4 | 1989 |
| 1,2-Dichloroethane | MR | 4 | 1989 |
| Atrazine | MCL | 4 | 1996 |
| p-Dichlorobenzene | MR | 4 | 1989 |
| Carbon tetrachloride | MR | 4 | 1989 |
| Coliform (TCR) | MCL | 4 | 2004 |
| Lead and Copper Rule | MR | 3 | 1993 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule | MR | 2 | 2008 |
| Trichloroethylene | MR | 2 | 1989 |
| Atrazine | MR | 1 | 2013 |
| Consumer Confidence Rule | Other | 1 | 1999 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 62 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFOA | 9/16/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 9/16/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHpS | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeA | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeS | 9/16/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFMBA | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| NFDHA | 9/16/2025 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFDA | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| HFPO-DA | 9/16/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 9/16/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFHpA | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 9Cl-PF3ONS | 9/16/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFUnA | 9/16/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| ADONA | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 9/16/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 8:2 FTS | 9/16/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFMPA | 9/16/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| NMeFOSAA | 9/16/2025 | <6.00 ppt | 6.00 ppt | Not Detected |
| NEtFOSAA | 9/16/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTrDA | 9/16/2025 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFTA | 9/16/2025 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFHxA | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 9/16/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBS | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxS | 9/16/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFNA | 9/16/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFTA | 6/9/2025 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFTrDA | 6/9/2025 | <7.00 ppt | 7.00 ppt | Not Detected |
| NEtFOSAA | 6/9/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| NMeFOSAA | 6/9/2025 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFPeA | 3/12/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| ADONA | 3/12/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| HFPO-DA | 3/12/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 3/12/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFPeS | 3/12/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| 6:2 FTS | 3/12/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 3/12/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 3/12/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMPA | 3/12/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFMBA | 3/12/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 9Cl-PF3ONS | 3/12/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFHxS | 3/12/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 8:2 FTS | 3/12/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 3/12/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFUnA | 3/12/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFDoA | 3/12/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 3/12/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
Verify This Water System
The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Osawatomie, City Of.
EPA SDWIS, Federal Reports
EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:
View PWS ID KS2012105 on SDWISSource: EPA SDWIS Federal Reports Search
Kansas Drinking Water Authority
Kansas's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.
Find KS regulator via EPA SDWISViolation Timeline
Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.
| Year (latest) | Contaminant | Category | Count | EPA Record |
|---|---|---|---|---|
| 2024 | Total Haloacetic Acids (HAA5) | MCL | 26 | SDWIS / KS2012105 / 2456 |
| 2024 | Interim Enhanced Surface Water Treatment Rule | TT | 8 | SDWIS / KS2012105 / 0300 |
| 2022 | TTHM | MCL | 28 | SDWIS / KS2012105 / 2950 |
| 2022 | Public Notice | Other | 14 | SDWIS / KS2012105 / 7500 |
| 2021 | CARBON, TOTAL | TT | 10 | SDWIS / KS2012105 / 2920 |
| 2021 | Interim Enhanced Surface Water Treatment Rule | MR | 4 | SDWIS / KS2012105 / 0300 |
| 2021 | Surface Water Treatment Rule | MR | 4 | SDWIS / KS2012105 / 0200 |
| 2019 | Revised Total Coliform Rule | MON | 8 | SDWIS / KS2012105 / 8000 |
| 2018 | CARBON, TOTAL | MR | 8 | SDWIS / KS2012105 / 2920 |
| 2014 | Total Haloacetic Acids (HAA5) | MR | 5 | SDWIS / KS2012105 / 2456 |
| 2014 | TTHM | MR | 5 | SDWIS / KS2012105 / 2950 |
| 2013 | Atrazine | MR | 1 | SDWIS / KS2012105 / 2050 |
| 2008 | Stage 2 Disinfectants and Disinfection Byproducts Rule | MR | 2 | SDWIS / KS2012105 / 0600 |
| 2004 | Coliform (TCR) | MCL | 4 | SDWIS / KS2012105 / 3100 |
| 1999 | Consumer Confidence Rule | Other | 1 | SDWIS / KS2012105 / 7000 |
How Osawatomie, City Of Compares
Cross-reference this system's record against state averages and the federal MCL framework for context.
| Metric | Osawatomie, City Of | Kansas avg | Federal benchmark |
|---|---|---|---|
| Total violations | 184 | 88.1 | SDWA compliance, any non-zero count is a recorded breach |
| Health-based violations | 80 | 34.9 | Indicates a contaminant exceeded a federal MCL |
| PFAS detection | None | 86.4% | EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt |
| Population served | 4,280 | 3,025 | Sizing context for compliance burden |
Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 957 regulated public water systems in Kansas.
Federal MCL reference, Safe Drinking Water Act thresholds ▼
| Contaminant | Federal MCL / Action Level | Note |
|---|---|---|
| Lead | 0 mg/L (Action Level: 0.015 mg/L) | Lead and Copper Rule treatment technique |
| Arsenic | 0.010 mg/L (10 ppb) | Health-based MCL since 2006 |
| Total Coliform | Treatment technique (RTCR) | Indicator organism, monitoring trigger |
| PFOA / PFOS (PFAS) | 4.0 ppt each (final 2024 rule) | Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026) |
| Nitrate (as N) | 10 mg/L | Acute health risk for infants |
Frequently Asked Questions
Is Osawatomie, City Of water safe to drink? ▼
How many people does Osawatomie, City Of serve? ▼
What type of violations does Osawatomie, City Of have? ▼
Has PFAS been detected in Osawatomie, City Of water? ▼
What water source does Osawatomie, City Of use? ▼
Where does this data come from? ▼
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.