Water report · not indexed
What is in the water at 66018
3 public water systems serve this ZIP code in the federal records. Everything below comes from EPA monitoring data, and everything missing is named.
DESOTO, CITY OF
PWSID KS2009102 · KS · serves 4,645 people
PFAS and lithium
2 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 3 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 16 µg/L | 2 | 4/15/2024 |
| PFBS | 0.0031 µg/L | 1 | 10/1/2024 |
A detection is a measurement, not a violation and not a health finding. EPA states that UCMR 5 results do not indicate compliance or non-compliance with any limit.
Health-based violations
3 open health-based violation(s) recorded in SDWIS and not yet returned to compliance.
- TT · contaminant code 0700 · began 2024-03-13
- TT · contaminant code 0700 · began 2024-03-13
- TT · contaminant code 0700 · began 2024-03-13
Hardness
Median hardness 230 mg/L as CaCO₃, measured at 2 stations serving this system across 9 results, 2015-03-02 to 2016-10-03. Measured in the water source and distribution area, not at a tap, and not in your home.
JOHNSON CO RWD 7
PWSID KS2009104 · KS · serves 6,457 people
PFAS and lithium
2 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 9 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 41 µg/L | 8 | 8/11/2025 |
| PFBA | 0.0071 µg/L | 1 | 2/10/2025 |
A detection is a measurement, not a violation and not a health finding. EPA states that UCMR 5 results do not indicate compliance or non-compliance with any limit.
Health-based violations
No open health-based violation on record. This covers MCL, treatment technique and MRDL violations in SDWIS that have not been returned to compliance. It excludes monitoring and reporting violations, which are the large majority nationally, so this is not “no violations”, and SDWIS completeness varies by state.
Hardness
Too few readings to state a hardness. 1 station(s), 4 result(s). Below two stations and five results this page will not state a number: a median of two readings from one creek is not your water.
WATER DISTRICT 1 OF JOHNSON CO
PWSID KS2009110 · KS · serves 482,000 people
PFAS and lithium
2 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 13 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 51 µg/L | 11 | 8/12/2025 |
| PFBA | 0.0053 µg/L | 2 | 4/24/2024 |
A detection is a measurement, not a violation and not a health finding. EPA states that UCMR 5 results do not indicate compliance or non-compliance with any limit.
Health-based violations
No open health-based violation on record. This covers MCL, treatment technique and MRDL violations in SDWIS that have not been returned to compliance. It excludes monitoring and reporting violations, which are the large majority nationally, so this is not “no violations”, and SDWIS completeness varies by state.
Hardness
Median hardness 253 mg/L as CaCO₃, measured at 6 stations serving this system across 25 results, 2015-03-02 to 2019-09-16. Measured in the water source and distribution area, not at a tap, and not in your home.
What this report cannot tell you
Every figure describes water at a sampling point: a treatment plant, an entry point to the distribution system, or a monitoring station. None of it describes water arriving at your tap. Plumbing between the two can add lead and copper, and if your home was built before 1986 a test kit tells you something no federal dataset can.
Sources: EPA UCMR 5 occurrence (final release, frozen July 2026) · EPA SDWIS health-based violations · USGS and state monitoring via the Water Quality Portal · EPA Public Water System Service Area Boundaries v3. Compiled 2026-09-01.