Water report · not indexed
What is in the water at 77388
8 public water systems serve this ZIP code in the federal records. Everything below comes from EPA monitoring data, and everything missing is named.
HARRIS COUNTY WCID 132
PWSID TX1010413 · TX
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 |
|---|---|---|---|
| PFBA | 0.0092 µg/L | 2 | 9/12/2024 |
| PFPeA | 0.0065 µg/L | 1 | 12/6/2024 |
| PFHxA | 0.0042 µg/L | 1 | 12/6/2024 |
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
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.
CYPRESSWOOD UTILITY DISTRICT
PWSID TX1010432 · TX
PFAS and lithium
4 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 9 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 13 µg/L | 1 | 3/15/2024 |
| PFBA | 0.0091 µg/L | 5 | 9/12/2024 |
| PFPeA | 0.0052 µg/L | 2 | 2/12/2025 |
| PFHxA | 0.0036 µg/L | 1 | 12/6/2024 |
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
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.
HARRIS COUNTY WCID 110
PWSID TX1010482 · TX
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 | 29 µg/L | 2 | 7/19/2024 |
| PFBA | 0.008 µg/L | 1 | 2/9/2024 |
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
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.
KLEIN PUD
PWSID TX1011143 · TX · serves 3,504 people
PFAS and lithium
3 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 3 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| PFBA | 0.0093 µg/L | 1 | 12/9/2025 |
| PFPeA | 0.0053 µg/L | 1 | 12/9/2025 |
| PFHxA | 0.0034 µg/L | 1 | 12/9/2025 |
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
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.
HARRIS COUNTY MUD 104
PWSID TX1011534 · TX · serves 4,449 people
PFAS and lithium
3 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 7 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 13 µg/L | 4 | 8/9/2024 |
| PFBA | 0.0061 µg/L | 2 | 2/9/2024 |
| PFPeA | 0.0044 µg/L | 1 | 11/15/2024 |
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
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.
BRIDGESTONE MUD
PWSID TX1011550 · TX · serves 24,528 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 | 19 µg/L | 8 | 9/25/2024 |
| PFPeA | 0.003 µg/L | 1 | 4/25/2024 |
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. 1 station(s), 1 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.
SPRING WEST MUD
PWSID TX1013017 · TX · serves 2,639 people
PFAS and lithium
1 compound detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 4 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 32 µg/L | 4 | 8/11/2023 |
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.
MANVILLE WSC
PWSID TX2270033 · TX · serves 39,648 people
PFAS and lithium
11 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 59 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 84 µg/L | 17 | 8/30/2023 |
| PFNA | 0.024 µg/L | 3 | 8/30/2023 |
| PFOS | 0.012 µg/L | 7 | 8/30/2023 |
| PFBS | 0.01 µg/L | 8 | 8/30/2023 |
| PFPeA | 0.0091 µg/L | 7 | 8/30/2023 |
| PFHxA | 0.0087 µg/L | 4 | 8/30/2023 |
| PFBA | 0.0074 µg/L | 3 | 8/30/2023 |
| PFHxS | 0.007 µg/L | 7 | 8/30/2023 |
| PFOA | 0.0059 µg/L | 1 | 2/22/2023 |
| PFHpA | 0.0043 µg/L | 1 | 2/22/2023 |
| PFUnA | 0.0027 µg/L | 1 | 2/22/2023 |
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
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.
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.