Public water system record
City of Sedan
Serves an area of Chautauqua County, KS that includes Sedan · 1,005 people served
Federal records show 1 health-based violation and 4 monitoring/reporting issues for City of Sedan in the last ten years. The most serious issue in this window was a resolved Haloacetic Acids (HAA5) violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 4
Key facts
- City of Sedan buys its water from Public Wholesale WSD 20.
- Highest measured level in the last 10 years: Haloacetic Acids (HAA5), 0.065 mg/L, federal limit 0.06 mg/L (1.1 times the limit), 2025.
- Most recent formal enforcement: signed compliance agreement by Kansas, October 2005.
- Record on file since 1996, with 31 health-based violations before October 19, 2016.
- Lead pipe inventory: 3 lead and 6 unknown out of 683 service lines.
Check whether City of Sedan serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.065 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
220 | Jan 1, 2025 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jan 1, 2024 | Resolved |
|
Public Notice
OTHER
|
Apr 5, 2014 | Resolved |
Full record since 1996
EPA's records for City of Sedan go back to 1996. Before October 19, 2016 they list 31 health-based violations (31 resolved) and 7 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 5 | 0 |
| 2000s | 26 | 5 |
| 2010 to October 18, 2016 | 0 | 2 |
| 2020s | 1 | 3 |
Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began January 2006, Resolved.
Show all 31 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 197.5 µg/L, federal limit 80 µg/L (2.5 times the limit)
|
Jan 1, 2006 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 192.5 µg/L, federal limit 60 µg/L (3.2 times the limit)
|
Jan 1, 2006 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Dec 1, 2005 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 187.5 µg/L, federal limit 60 µg/L (3.1 times the limit)
|
Oct 1, 2005 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 170 µg/L, federal limit 80 µg/L (2.1 times the limit)
|
Oct 1, 2005 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Oct 1, 2005 | Resolved |
|
CARBON, TOTAL
Treatment technique failure
|
Jul 1, 2005 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 192.5 µg/L, federal limit 60 µg/L (3.2 times the limit)
|
Jul 1, 2005 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 137.5 µg/L, federal limit 80 µg/L (1.7 times the limit)
|
Jul 1, 2005 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 165 µg/L, federal limit 60 µg/L (2.8 times the limit)
|
Apr 1, 2005 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 105 µg/L, federal limit 80 µg/L (1.3 times the limit)
|
Apr 1, 2005 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 182.5 µg/L, federal limit 60 µg/L (3 times the limit)
|
Jan 1, 2005 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 130 µg/L, federal limit 80 µg/L (1.6 times the limit)
|
Jan 1, 2005 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 207.5 µg/L, federal limit 60 µg/L (3.5 times the limit)
|
Oct 1, 2004 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 150 µg/L, federal limit 80 µg/L (1.9 times the limit)
|
Oct 1, 2004 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 165 µg/L, federal limit 60 µg/L (2.8 times the limit)
|
Jul 1, 2004 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 132.5 µg/L, federal limit 80 µg/L (1.7 times the limit)
|
Jul 1, 2004 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 100 µg/L, federal limit 80 µg/L (1.3 times the limit)
|
Apr 1, 2004 | Resolved |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 250 µg/L, federal limit 60 µg/L (4.2 times the limit)
|
Apr 1, 2004 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Feb 1, 2004 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 2004 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
May 1, 2003 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
May 1, 2002 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 2002 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Mar 1, 2001 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Aug 1, 2000 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Nov 1, 1999 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Feb 1, 1999 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Apr 1, 1997 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 1997 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Dec 1, 1996 | Resolved |
Enforcement actions
Kansas regulators took 1 formal enforcement action against City of Sedan in 2005. The most recent was a signed compliance agreement in October 2005.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Oct 17, 2005 | Kansas | Signed compliance agreement | 14 violations (14 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs) |
What the violations mean
Haloacetic Acids (HAA5)
1 incidentHaloacetic acid byproducts exceeded the federal limit
Long-term exposure to HAAs may increase cancer risk
Where the water comes from
City of Sedan buys its water from Public Wholesale WSD 20. It lists no wells or intakes of its own.
Buys water from
- Public Wholesale WSD 20 Sedan, KS
Annual water quality report
City of Sedan must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Kansas.
Certified drinking water labs by state EPA guidance for private wells