Water report · not indexed
What is in the water at 77406
9 public water systems serve this ZIP code in the federal records. Everything below comes from EPA monitoring data, and everything missing is named.
TDCJ JESTER 1 UNIT
PWSID TX0790085 · TX
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 | 24 µg/L | 4 | 8/4/2025 |
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.
PECAN GROVE MUD
PWSID TX0790132 · TX
PFAS and lithium
6 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 40 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 12 µg/L | 8 | 7/30/2025 |
| PFPeA | 0.092 µg/L | 16 | 7/30/2025 |
| PFBA | 0.023 µg/L | 8 | 7/30/2025 |
| PFHxA | 0.0064 µg/L | 6 | 4/30/2025 |
| PFBS | 0.0045 µg/L | 1 | 12/18/2024 |
| PFHxS | 0.003 µg/L | 1 | 12/18/2024 |
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.
FORT BEND COUNTY MUD 50
PWSID TX0790277 · TX · serves 6,234 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 | 14 µg/L | 3 | 7/10/2023 |
| PFPeA | 0.0086 µg/L | 2 | 3/13/2023 |
| PFHxA | 0.0077 µg/L | 2 | 3/13/2023 |
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.
FORT BEND COUNTY MUD 118
PWSID TX0790366 · TX · serves 5,403 people
PFAS and lithium
6 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 9 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 15 µg/L | 4 | 9/26/2023 |
| PFBA | 0.0078 µg/L | 1 | 12/14/2023 |
| PFPeA | 0.0067 µg/L | 1 | 12/14/2023 |
| PFHxA | 0.0063 µg/L | 1 | 12/14/2023 |
| PFBS | 0.0032 µg/L | 1 | 12/14/2023 |
| PFHxS | 0.0031 µg/L | 1 | 12/14/2023 |
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
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.
LAMAR CISD FOSTER BRISCOE AND WERTHEIMER
PWSID TX0790388 · 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 | 18 µg/L | 2 | 4/17/2024 |
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.
FORT BEND COUNTY MUD 142
PWSID TX0790429 · TX
PFAS and lithium
8 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 16 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 12 µg/L | 3 | 8/11/2023 |
| PFHxA | 0.0091 µg/L | 3 | 5/3/2023 |
| PFPeA | 0.0088 µg/L | 3 | 5/3/2023 |
| 6:2 FTS | 0.0079 µg/L | 1 | 11/17/2023 |
| PFBA | 0.0076 µg/L | 1 | 2/21/2023 |
| PFOS | 0.0042 µg/L | 1 | 2/21/2023 |
| PFBS | 0.004 µg/L | 2 | 2/21/2023 |
| PFHxS | 0.0038 µg/L | 2 | 2/21/2023 |
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.
FORT BEND COUNTY MUD 146
PWSID TX0790435 · TX
PFAS and lithium
6 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 20 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 9.7 µg/L | 2 | 3/31/2025 |
| 6:2 FTS | 0.0071 µg/L | 1 | 6/3/2025 |
| PFBA | 0.0065 µg/L | 6 | 6/3/2025 |
| PFPeA | 0.0049 µg/L | 5 | 3/31/2025 |
| PFHxA | 0.0041 µg/L | 5 | 3/31/2025 |
| PFBS | 0.0031 µg/L | 1 | 12/1/2025 |
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.
FORT BEND COUNTY MUD 133
PWSID TX0790444 · TX · serves 7,362 people
PFAS and lithium
7 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 20 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 18 µg/L | 3 | 8/21/2023 |
| PFPeA | 0.0099 µg/L | 4 | 5/10/2023 |
| PFHxA | 0.0089 µg/L | 4 | 5/10/2023 |
| PFBA | 0.0077 µg/L | 2 | 2/21/2023 |
| PFOS | 0.0046 µg/L | 1 | 2/21/2023 |
| PFBS | 0.0042 µg/L | 3 | 5/10/2023 |
| PFHxS | 0.0039 µg/L | 3 | 5/10/2023 |
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.
FORT BEND COUNTY MUD 143 WATER VIEW ESTA
PWSID TX0790472 · TX · serves 5,196 people
PFAS and lithium
3 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 5 samples.
| Compound | Highest detected | Samples | Most recent |
|---|---|---|---|
| lithium | 17 µg/L | 3 | 9/16/2025 |
| PFBA | 0.005 µg/L | 1 | 9/16/2025 |
| PFPeA | 0.0031 µg/L | 1 | 3/11/2025 |
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.
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.