Sedan Water Quality
Kansas
According to EPA SDWIS, Sedan, Kansas is served by 5 community water systems covering about 1,397 people. The same extract lists 31 health-based violation records, most recently coded 2456 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Sedan, Kansas is delivered through 5 EPA-regulated community water systems serving an estimated 1,397 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
PlainEnviro's health-based SDWIS extract shows 31 violation records across the 5 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 3 distinct EPA contaminant codes: Total Haloacetic Acids (HAA5), Groundwater Rule, CARBON, TOTAL.
A past EPA health-based registry row does not describe water delivered today or current compliance status; utilities notify customers and remediate under state primacy oversight when required. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the Kansas drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| SEDAN, CITY OF | 1,005 | 3 | Health |
| CHAUTAUQUA CO RWD 3 | 200 | 3 | Health |
| CHAUTAUQUA CO RWD 1 | 135 | 17 | Health |
| ELGIN, CITY OF | 56 | 2 | Health |
| PUBLIC WHOLESALE WSD 20 | 1 | 6 | Health |
Does this city have health-based water violations?
These health-based records can represent Maximum Contaminant Level (MCL), Treatment Technique (TT), or Maximum Residual Disinfectant Level (MRDL) categories. A historical record does not establish that water is currently unsafe.
| Water system | Contaminant | Begin Date |
|---|---|---|
| SEDAN, CITY OF | Total Haloacetic Acids (HAA5) | 2025-01-01 |
| SEDAN, CITY OF | Total Haloacetic Acids (HAA5) | 2025-01-01 |
| SEDAN, CITY OF | Total Haloacetic Acids (HAA5) | 2025-01-01 |
| CHAUTAUQUA CO RWD 1 | Total Haloacetic Acids (HAA5) | 2025-01-01 |
| CHAUTAUQUA CO RWD 1 | Total Haloacetic Acids (HAA5) | 2025-01-01 |
| CHAUTAUQUA CO RWD 1 | Total Haloacetic Acids (HAA5) | 2025-01-01 |
| CHAUTAUQUA CO RWD 3 | Total Haloacetic Acids (HAA5) | 2025-01-01 |
| CHAUTAUQUA CO RWD 3 | Total Haloacetic Acids (HAA5) | 2025-01-01 |
| CHAUTAUQUA CO RWD 3 | Total Haloacetic Acids (HAA5) | 2025-01-01 |
| CHAUTAUQUA CO RWD 1 | Total Haloacetic Acids (HAA5) | 2024-10-01 |
| CHAUTAUQUA CO RWD 1 | Total Haloacetic Acids (HAA5) | 2024-10-01 |
| CHAUTAUQUA CO RWD 1 | Total Haloacetic Acids (HAA5) | 2024-10-01 |
| CHAUTAUQUA CO RWD 1 | Total Haloacetic Acids (HAA5) | 2024-10-01 |
| CHAUTAUQUA CO RWD 1 | Total Haloacetic Acids (HAA5) | 2024-07-01 |
| CHAUTAUQUA CO RWD 1 | Total Haloacetic Acids (HAA5) | 2024-07-01 |
| CHAUTAUQUA CO RWD 1 | Total Haloacetic Acids (HAA5) | 2024-07-01 |
| CHAUTAUQUA CO RWD 1 | Total Haloacetic Acids (HAA5) | 2024-04-01 |
| CHAUTAUQUA CO RWD 1 | Total Haloacetic Acids (HAA5) | 2024-04-01 |
| CHAUTAUQUA CO RWD 1 | Total Haloacetic Acids (HAA5) | 2024-04-01 |
| CHAUTAUQUA CO RWD 1 | Total Haloacetic Acids (HAA5) | 2024-04-01 |
| ELGIN, CITY OF | Groundwater Rule | 2021-01-24 |
| ELGIN, CITY OF | Groundwater Rule | 2021-01-24 |
| CHAUTAUQUA CO RWD 1 | Total Haloacetic Acids (HAA5) | 2018-04-01 |
| CHAUTAUQUA CO RWD 1 | Total Haloacetic Acids (HAA5) | 2018-01-01 |
| CHAUTAUQUA CO RWD 1 | Total Haloacetic Acids (HAA5) | 2017-10-01 |
| PUBLIC WHOLESALE WSD 20 | CARBON, TOTAL | 2017-07-01 |
| PUBLIC WHOLESALE WSD 20 | CARBON, TOTAL | 2017-07-01 |
| PUBLIC WHOLESALE WSD 20 | CARBON, TOTAL | 2017-04-01 |
| PUBLIC WHOLESALE WSD 20 | CARBON, TOTAL | 2017-04-01 |
| PUBLIC WHOLESALE WSD 20 | CARBON, TOTAL | 2017-01-01 |
| PUBLIC WHOLESALE WSD 20 | CARBON, TOTAL | 2017-01-01 |
What are Sedan's health-based records for?
Sedan's health-based violation records carry 3 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Total Haloacetic Acids (HAA5) | 23 | 3 |
| Carbon, Total | 6 | 1 |
| Groundwater Rule | 2 | 1 |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Sedan, Kansas? ▼
How many water violations does Sedan have in this EPA extract? ▼
What contaminants were found in Sedan water? ▼
How many water systems serve Sedan? ▼
Where does Sedan get its drinking water? ▼
How does Sedan compare in Kansas?
Of the 552 Kansas places with at least one community water system on file, Sedan ranks #13 by number of systems (5).
Either side of it: Neodesha (5), Ozawkie (5), Topeka (5), Winfield (5)
About This Data
Figures here are the current EPA SDWIS extract joined to the 5 community water systems whose service area lists Sedan, ranked against the 552 Kansas places with at least one system on file. Data current as of 2026-08-25.
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.
A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.