WaterCompared

Water report · not indexed

What is in the water at 77583

7 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 PEARLAND

PWSID TX0200008 · TX · serves 125,828 people

PFAS and lithium

7 compounds detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 63 samples.

CompoundHighest detectedSamplesMost recent
lithium20 µg/L237/28/2025
PFPeA0.067 µg/L147/28/2025
PFBA0.02 µg/L117/28/2025
PFHxA0.0063 µg/L94/30/2025
PFOS0.0044 µg/L210/21/2025
PFHxS0.0041 µg/L11/8/2025
PFBS0.0037 µg/L31/8/2025

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.

TDCJ RAMSEY AREA

PWSID TX0200201 · TX

PFAS and lithium

1 compound detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 6 samples.

CompoundHighest detectedSamplesMost recent
lithium29 µg/L66/8/2023

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.

SOUTHWOOD ESTATES

PWSID TX0200403 · TX

PFAS and lithium

1 compound detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 2 samples.

CompoundHighest detectedSamplesMost recent
lithium27 µg/L25/27/2025

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.

BRAZORIA COUNTY MUD 21

PWSID TX0200610 · TX

PFAS and lithium

1 compound detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 2 samples.

CompoundHighest detectedSamplesMost recent
lithium42 µg/L28/14/2024

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.

BRAZORIA COUNTY MUD 29

PWSID TX0200612 · TX

PFAS and lithium

1 compound detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 2 samples.

CompoundHighest detectedSamplesMost recent
lithium17 µg/L27/25/2024

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

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.

BRAZORIA COUNTY MUD 31

PWSID TX0200645 · TX

PFAS and lithium

1 compound detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 2 samples.

CompoundHighest detectedSamplesMost recent
lithium41 µg/L25/21/2025

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.

BRAZORIA COUNTY MUD 22

PWSID TX0200706 · TX

PFAS and lithium

1 compound detected at or above the reporting limit under EPA’s UCMR 5 monitoring, across 2 samples.

CompoundHighest detectedSamplesMost recent
lithium24 µg/L25/19/2025

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.