Water report · not indexed
What is in the water at 77084
15 public water systems serve this ZIP code in the federal records. Everything below comes from EPA monitoring data, and everything missing is named.
CITY OF HOUSTON
PWSID TX1010013 · TX · serves 2,202,531 people
PFAS and lithium
5 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 115 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 34 µg/L | 69 | 8/31/2023 |
| 6:2 FTS | 0.043 µg/L | 10 | 3/8/2023 |
| PFBA | 0.011 µg/L | 9 | 3/6/2023 |
| PFPeA | 0.0067 µg/L | 11 | 5/1/2023 |
| PFHxA | 0.0051 µg/L | 16 | 8/31/2023 |
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 161 mg/L as CaCO₃, measured at 34 stations serving this system across 34 results, 2015-01-12 to 2016-08-09. Measured in the water source and distribution area, not at a tap, and not in your home.
NORTHAMPTON MUD
PWSID TX1010337 · TX · serves 7,413 people
PFAS and lithium
1 compound detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 6 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 38 µg/L | 6 | 4/12/2023 |
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.
HARRIS COUNTY UTILITY DISTRICT 6
PWSID TX1010501 · TX · serves 11,262 people
PFAS and lithium
3 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 10 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| PFBA | 0.0091 µg/L | 4 | 8/12/2025 |
| PFPeA | 0.0051 µg/L | 3 | 4/8/2025 |
| PFHxA | 0.0047 µg/L | 3 | 4/8/2025 |
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 102
PWSID TX1010503 · TX
PFAS and lithium
6 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 16 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 27 µg/L | 4 | 8/4/2023 |
| PFHxA | 0.0092 µg/L | 3 | 9/27/2023 |
| PFBA | 0.0086 µg/L | 1 | 9/27/2023 |
| PFPeA | 0.0085 µg/L | 4 | 9/27/2023 |
| PFBS | 0.0046 µg/L | 2 | 11/17/2023 |
| PFHxS | 0.0036 µg/L | 2 | 11/17/2023 |
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.
JACKRABBIT ROAD PUD
PWSID TX1010538 · TX
PFAS and lithium
6 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 15 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 20 µg/L | 3 | 9/18/2023 |
| PFPeA | 0.0081 µg/L | 3 | 12/13/2023 |
| PFBA | 0.0071 µg/L | 3 | 12/13/2023 |
| PFHxA | 0.0046 µg/L | 3 | 3/14/2023 |
| PFBS | 0.004 µg/L | 1 | 11/15/2023 |
| PFHxS | 0.0034 µg/L | 2 | 12/13/2023 |
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.
WESTLAKE MUD 1
PWSID TX1010635 · TX
PFAS and lithium
1 compound detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 2 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 37 µg/L | 2 | 7/15/2024 |
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.
SPENCER ROAD PUD
PWSID TX1010654 · TX
PFAS and lithium
8 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 36 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 19 µg/L | 5 | 9/20/2023 |
| PFBA | 0.027 µg/L | 5 | 8/30/2023 |
| PFHxS | 0.015 µg/L | 6 | 4/17/2023 |
| PFHxA | 0.011 µg/L | 7 | 8/30/2023 |
| PFOS | 0.0097 µg/L | 1 | 4/17/2023 |
| PFPeA | 0.0092 µg/L | 7 | 8/30/2023 |
| PFHpA | 0.0048 µg/L | 1 | 4/17/2023 |
| PFBS | 0.0042 µg/L | 4 | 4/17/2023 |
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.
ADDICKS UTILITY DISTRICT
PWSID TX1011019 · TX
PFAS and lithium
6 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 25 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 11 µg/L | 2 | 9/18/2023 |
| PFBA | 0.0074 µg/L | 5 | 6/19/2023 |
| PFPeA | 0.0068 µg/L | 6 | 6/19/2023 |
| PFHxA | 0.0064 µg/L | 6 | 6/19/2023 |
| PFBS | 0.0037 µg/L | 3 | 12/18/2023 |
| PFHxS | 0.0033 µg/L | 3 | 12/18/2023 |
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.
LANGHAM CREEK UTILITY DISTRICT
PWSID TX1011249 · TX
PFAS and lithium
6 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 23 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 33 µg/L | 8 | 6/26/2024 |
| PFBA | 0.0091 µg/L | 3 | 12/13/2023 |
| PFPeA | 0.0074 µg/L | 3 | 12/13/2023 |
| PFHxA | 0.0063 µg/L | 3 | 12/13/2023 |
| PFBS | 0.0037 µg/L | 3 | 12/13/2023 |
| PFHxS | 0.0033 µg/L | 3 | 12/13/2023 |
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.
BARKER CYPRESS MUD
PWSID TX1011613 · TX
PFAS and lithium
5 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 18 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 11 µg/L | 2 | 8/14/2024 |
| PFBA | 0.0068 µg/L | 5 | 5/7/2024 |
| PFPeA | 0.0054 µg/L | 5 | 5/7/2024 |
| PFHxA | 0.0047 µg/L | 5 | 5/7/2024 |
| PFBS | 0.003 µg/L | 1 | 1/7/2025 |
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.
KATY ISD MAYDE CREEK SCHOOL COMPLEX
PWSID TX1011728 · TX
PFAS and lithium
1 compound detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 2 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 21 µg/L | 2 | 9/17/2025 |
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 183
PWSID TX1011824 · TX
PFAS and lithium
5 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 6 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 14 µg/L | 2 | 9/20/2023 |
| PFBA | 0.0066 µg/L | 1 | 12/13/2023 |
| PFPeA | 0.0065 µg/L | 1 | 12/13/2023 |
| PFHxA | 0.0049 µg/L | 1 | 12/13/2023 |
| PFHxS | 0.0031 µg/L | 1 | 12/13/2023 |
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.
HARRIS COUNTY MUD 185
PWSID TX1011914 · TX
PFAS and lithium
7 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 12 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 11 µg/L | 2 | 9/18/2023 |
| 6:2 FTS | 0.013 µg/L | 1 | 11/15/2023 |
| PFHxA | 0.0096 µg/L | 2 | 12/13/2023 |
| PFPeA | 0.0082 µg/L | 2 | 12/13/2023 |
| PFBA | 0.0071 µg/L | 2 | 12/13/2023 |
| PFBS | 0.0043 µg/L | 1 | 11/15/2023 |
| PFHxS | 0.0034 µg/L | 2 | 12/13/2023 |
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.
HARRIS COUNTY MUD 238
PWSID TX1012361 · TX · serves 7,773 people
PFAS and lithium
4 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 11 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 21 µg/L | 4 | 9/16/2024 |
| PFBA | 0.0083 µg/L | 3 | 9/16/2024 |
| PFPeA | 0.0058 µg/L | 2 | 5/5/2025 |
| PFHxA | 0.0048 µg/L | 2 | 5/5/2025 |
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 276
PWSID TX1012942 · TX
PFAS and lithium
3 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 13 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| PFBA | 0.007 µg/L | 5 | 9/17/2024 |
| PFPeA | 0.0052 µg/L | 4 | 3/12/2024 |
| PFHxA | 0.0049 µg/L | 4 | 3/12/2024 |
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.
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.