CheckPFAS

ZIP 77089 · Texas

Houston, TX

High Risk
See the full Houston overview — all utilities & ZIP codes →

8 compounds detected

Above EPA drinking water limits

PFOS Exceeds limit
4.60 ppt (115% of MCL)
0 MCL: 4 ppt 6 ppt
PFHxS
4.10 ppt (41% of MCL)
0 MCL: 10 ppt 15 ppt
lithium no federal limit
33900.00 ppt
0 50850 ppt
PFPeA no federal limit
66.70 ppt
0 100.1 ppt
6:2 FTS no federal limit
42.60 ppt
0 63.9 ppt
PFBA no federal limit
20.20 ppt
0 30.3 ppt
PFHxA no federal limit
6.30 ppt
0 9.5 ppt
PFBS no federal limit
3.70 ppt
0 5.6 ppt
Above EPA limit Below EPA limit No federal limit EPA MCL

Above EPA Limits

2 compounds exceed EPA Maximum Contaminant Levels in water serving this ZIP code. Standard pitcher filters like Brita do not remove PFAS. See filter recommendations below.

PFAS Detected
24
Above EPA Limits
2
Water Systems
4
Highest % of MCL
115%

Plain English

01What this means for you

One or more PFAS compounds were measured above the EPA's enforceable drinking water limit at a utility serving ZIP 77089. The EPA set these limits because long-term exposure at higher concentrations is associated with health effects including immune suppression, thyroid changes, and cancer risk increases. Standard pitcher filters (Brita, PUR) are not certified to remove PFAS. The most reliable at-home options are under-sink reverse osmosis systems or activated carbon block filters with an NSF/ANSI 58 certification specifically listing PFOA/PFOS reduction. Your water utility is required to bring levels into compliance by 2029 — filtering at the tap is the practical interim step if you'd like additional protection now.

What to do next

02Three concrete steps

  1. 01

    Install a certified filter

    A reverse osmosis or NSF/ANSI 58-certified carbon block at your kitchen tap is the most reliable solution. Standard pitcher filters (Brita, PUR) don't remove PFAS unless explicitly certified for it. See certified filter picks →

  2. 02

    Read your utility's CCR

    Your water utility publishes an annual Consumer Confidence Report covering the previous year's water quality, including their PFAS treatment plan if any. More detailed than this site's summary. How to read a CCR →

  3. 03

    Reduce other exposure routes

    Water isn't the only input. Replace badly-scratched non-stick pans, skip microwave popcorn bags and greaseproof fast-food wrappers, and choose stainless or cast iron cookware. Full action plan on the FAQ →

Filter Recommendations

Find the right filter for your water
See our tested & reviewed PFAS-certified filters, ranked by CheckPFAS Score

CheckPFAS earns a small commission on filter purchases at no cost to you. Ranked by performance, not commission. Affiliate disclosure.

02CITY OF PEARLAND

High Risk

PWSID · TX0200008

Water Type
Surface Water
PFAS Detected
7
Above MCL
1
State
Texas
Data Period
2023–2025

PFAS test results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOS
Perfluorooctane sulfonic acid
4.40ppt
110% of limit
4 pptExceeds MCL
PFHxS
Perfluorohexane sulfonic acid
4.10ppt
41% of limit
10 pptBelow limit
lithium
19700.00pptNo federal limitUnregulated
PFPeA
Perfluoropentanoic acid
66.70pptNo federal limitUnregulated
PFBA
Perfluorobutanoic acid
20.20pptNo federal limitUnregulated
PFHxA
Perfluorohexanoic acid
6.30pptNo federal limitUnregulated
PFBS
Perfluorobutane sulfonic acid
3.70pptNo federal limitUnregulated

03CITY OF HOUSTON, TX

Moderate

PWSID · TX1010013

Water Type
Groundwater
PFAS Detected
5
Above MCL
0
State
Texas
Data Period
2023–2025

PFAS test results

CompoundDetectedvs. EPA LimitEPA LimitStatus
lithium
33900.00pptNo federal limitUnregulated
6:2 FTS
6:2 Fluorotelomer sulfonic acid
42.60pptNo federal limitUnregulated
PFBA
Perfluorobutanoic acid
10.60pptNo federal limitUnregulated
PFPeA
Perfluoropentanoic acid
6.70pptNo federal limitUnregulated
PFHxA
Perfluorohexanoic acid
5.10pptNo federal limitUnregulated

04SAGEMEADOW UTILITY DISTRICT

Moderate

PWSID · TX1010386

Water Type
Surface Water
PFAS Detected
6
Above MCL
0
State
Texas
Data Period
2023–2025

PFAS test results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFHxS
Perfluorohexane sulfonic acid
3.10ppt
31% of limit
10 pptBelow limit
lithium
28400.00pptNo federal limitUnregulated
PFBA
Perfluorobutanoic acid
6.90pptNo federal limitUnregulated
PFPeA
Perfluoropentanoic acid
5.50pptNo federal limitUnregulated
PFHxA
Perfluorohexanoic acid
4.70pptNo federal limitUnregulated
PFBS
Perfluorobutane sulfonic acid
3.10pptNo federal limitUnregulated

05CLEAR BROOK CITY MUD

High Risk

PWSID · TX1010418

Water Type
MX
PFAS Detected
6
Above MCL
1
State
Texas
Data Period
2023–2025

PFAS test results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOS
Perfluorooctane sulfonic acid
4.60ppt
115% of limit
4 pptExceeds MCL
PFHxS
Perfluorohexane sulfonic acid
3.50ppt
35% of limit
10 pptBelow limit
PFBA
Perfluorobutanoic acid
7.10pptNo federal limitUnregulated
PFHxA
Perfluorohexanoic acid
5.00pptNo federal limitUnregulated
PFPeA
Perfluoropentanoic acid
4.50pptNo federal limitUnregulated
PFBS
Perfluorobutane sulfonic acid
3.00pptNo federal limitUnregulated

Note: ZIP code 77089 is served by 4 separate water utilities. Results above show data for each system independently.

Source & Methodology

About this data

Source
EPA UCMR 5
Data released
January 2026
Sampling period
January 2023 – December 2025
Systems tested
~10,000 public water systems
Water systems (PWSID)
TX0200008 · TX1010013 · TX1010386 · TX1010418
Detection threshold (MRL)
~1.5–2 ppt

Values shown are the highest single-sample concentration measured at entry points to the distribution system. Results reflect water quality at the treatment plant — aging pipes, building plumbing, and on-site storage can affect what actually reaches your tap. "Not detected" means below the MRL, not literally zero.

View raw EPA UCMR 5 occurrence data →

Related

More resources for your area

  1. 01

    How to read your utility's CCR

    Decode your annual Consumer Confidence Report

  2. 02

    On a private well?

    PFAS testing guide for well owners — EPA rules don't apply

  3. 03

    All water systems in Texas

    Compare utilities statewide

  4. 04

    Which filter removes PFAS?

    Compare every method by removal rate & NSF certification

  5. 05

    PFAS health effects

    What the science shows, condition by condition

  6. 06

    PFAS compound guide

    Health effects & EPA limits for each compound