Water report · not indexed
What is in the water at 45014
5 public water systems serve this ZIP code in the federal records. Everything below comes from EPA monitoring data, and everything missing is named.
BUTLER CO. WATER DISTRICT 2 PWS
PWSID OH0900303 · OH · serves 116,572 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 |
|---|---|---|---|
| PFHxS | 0.0047 µg/L | 1 | 9/12/2023 |
| PFBS | 0.0035 µg/L | 2 | 9/12/2023 |
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
No hardness measurement. Hardness is measured at environmental monitoring stations, and none fell inside this system’s service area. That is a gap in where monitoring happens, not a finding about the water.
FAIRFIELD CITY PWS
PWSID OH0900715 · OH · serves 44,907 people
PFAS and lithium
4 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 5 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| PFBA | 0.0057 µg/L | 1 | 3/14/2023 |
| HFPO-DA | 0.0057 µg/L | 1 | 3/14/2023 |
| PFPeA | 0.0043 µg/L | 2 | 9/26/2024 |
| PFHxA | 0.003 µg/L | 1 | 3/14/2023 |
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. 4 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.
SOUTHWEST REGIONAL WATER DISTRICT
PWSID OH0903912 · OH · serves 42,856 people
PFAS and lithium
1 compound detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 1 sample.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| PFBS | 0.0031 µg/L | 1 | 10/30/2023 |
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 295 mg/L as CaCO₃, measured at 9 stations serving this system across 21 results, 2017-06-27 to 2020-11-10. Measured in the water source and distribution area, not at a tap, and not in your home.
HAMILTON PUBLIC WATER SYSTEM
PWSID OH0904012 · OH · serves 62,447 people
PFAS and lithium
3 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 4 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| PFOA | 0.0053 µg/L | 1 | 11/13/2024 |
| PFHxS | 0.0041 µg/L | 1 | 11/13/2024 |
| PFBS | 0.0036 µg/L | 2 | 5/8/2024 |
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
Too few readings to state a hardness. 4 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.
CINCINNATI PUBLIC WATER SYSTEM
PWSID OH3102612 · OH · serves 750,200 people
PFAS and lithium
3 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 6 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| PFOS | 0.0061 µg/L | 2 | 6/22/2023 |
| PFBA | 0.0052 µg/L | 2 | 6/22/2023 |
| PFBS | 0.0041 µg/L | 2 | 6/22/2023 |
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 276 mg/L as CaCO₃, measured at 31 stations serving this system across 164 results, 2015-03-17 to 2024-12-17. 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.