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Community Water System · PWS TX0200009

City of Sweeny

Sweeny, Texas 77480-0248 - drinking water served from groundwater sources to 3,978 people, tracked in EPA SDWIS and UCMR5.

3,978
People served
65
EPA violations
16
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 65 drinking-water violations at City of Sweeny, 25% of them health-based - below the Texas per-system average.

65
Total EPA violations on record
25%
Health-based (MCL / treatment failure)
3,978
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: City of Sweeny

City of Sweeny is a local-owned community water system that delivers drinking water to 3,978 residents in Sweeny, Texas (Brazoria County) through 1,326 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 65 total violations for this system , of which 16 (25%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 35 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 28 violations (MR). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

Across Texas, EPA tracks 7,351 public water systems serving 33,253,313 people, with 746,210 cumulative violations and 162,945 health-based violations on record. About 90% of systems in the state carry at least one violation, and state-wide the average per system is 101.5 violations. Statewide, 1,068 of 1,147 UCMR5-tested systems have reported PFAS detections (93.1%).

City of Sweeny's 65 violations sit below the Texas average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
3,978
Total Violations
65
Health-Based Violations
16
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
1,326
County
Brazoria
School/Daycare
No
MCL Violations
0
Monitoring Violations
35
Treatment Tech Violations
16

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 28 2025
Lead and Copper Rule TT 16 2018
Public Notice Other 14 2021
Chlorine MR 7 2020

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 58 samples detected PFAS.

Contaminant Date Result MRL Status
NMeFOSAA 9/28/2023 <6.00 ppt 6.00 ppt Not Detected
PFBS 9/28/2023 <3.00 ppt 3.00 ppt Not Detected
NEtFOSAA 9/28/2023 <5.00 ppt 5.00 ppt Not Detected
PFHpA 9/28/2023 <3.00 ppt 3.00 ppt Not Detected
PFTA 9/28/2023 <8.00 ppt 8.00 ppt Not Detected
PFTrDA 9/28/2023 <7.00 ppt 7.00 ppt Not Detected
PFPeS 9/28/2023 <4.00 ppt 4.00 ppt Not Detected
6:2 FTS 9/28/2023 <5.00 ppt 5.00 ppt Not Detected
PFHpS 9/28/2023 <3.00 ppt 3.00 ppt Not Detected
NFDHA 9/28/2023 <20.00 ppt 20.00 ppt Not Detected
PFMBA 9/28/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeA 9/28/2023 <3.00 ppt 3.00 ppt Not Detected
PFMPA 9/28/2023 <4.00 ppt 4.00 ppt Not Detected
PFEESA 9/28/2023 <3.00 ppt 3.00 ppt Not Detected
4:2 FTS 9/28/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxS 9/28/2023 <3.00 ppt 3.00 ppt Not Detected
PFBA 9/28/2023 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 9/28/2023 <5.00 ppt 5.00 ppt Not Detected
PFDoA 9/28/2023 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 9/28/2023 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 9/28/2023 <5.00 ppt 5.00 ppt Not Detected
PFUnA 9/28/2023 <2.00 ppt 2.00 ppt Not Detected
PFHxA 9/28/2023 <3.00 ppt 3.00 ppt Not Detected
ADONA 9/28/2023 <3.00 ppt 3.00 ppt Not Detected
PFNA 9/28/2023 <4.00 ppt 4.00 ppt Not Detected
8:2 FTS 9/28/2023 <5.00 ppt 5.00 ppt Not Detected
PFDA 9/28/2023 <3.00 ppt 3.00 ppt Not Detected
PFOA 9/28/2023 <4.00 ppt 4.00 ppt Not Detected
PFOS 9/28/2023 <4.00 ppt 4.00 ppt Not Detected
PFBS 3/5/2024 <3.00 ppt 3.00 ppt Not Detected
PFDoA 3/5/2024 <3.00 ppt 3.00 ppt Not Detected
NEtFOSAA 3/5/2024 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 3/5/2024 <7.00 ppt 7.00 ppt Not Detected
PFTA 3/5/2024 <8.00 ppt 8.00 ppt Not Detected
NMeFOSAA 3/5/2024 <6.00 ppt 6.00 ppt Not Detected
PFHpS 3/5/2024 <3.00 ppt 3.00 ppt Not Detected
PFBA 3/5/2024 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 3/5/2024 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 3/5/2024 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 3/5/2024 <5.00 ppt 5.00 ppt Not Detected
PFMPA 3/5/2024 <4.00 ppt 4.00 ppt Not Detected
PFPeA 3/5/2024 <3.00 ppt 3.00 ppt Not Detected
PFMBA 3/5/2024 <3.00 ppt 3.00 ppt Not Detected
PFEESA 3/5/2024 <3.00 ppt 3.00 ppt Not Detected
PFPeS 3/5/2024 <4.00 ppt 4.00 ppt Not Detected
PFHpA 3/5/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxA 3/5/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxS 3/5/2024 <3.00 ppt 3.00 ppt Not Detected
PFNA 3/5/2024 <4.00 ppt 4.00 ppt Not Detected
NFDHA 3/5/2024 <20.00 ppt 20.00 ppt Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for City of Sweeny.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID TX0200009 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Texas Drinking Water Authority

Texas Commission on Environmental Quality (TCEQ) - Drinking Water Watch is the primacy agency that licenses and inspects City of Sweeny under EPA-delegated authority.

Open TX regulator portal

Source: Texas Commission on Environmental Quality (TCEQ) - Drinking Water Watch

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2025 Lead and Copper Rule MR 28 SDWIS / TX0200009 / 5000
2021 Public Notice Other 14 SDWIS / TX0200009 / 7500
2020 Chlorine MR 7 SDWIS / TX0200009 / 0999
2018 Lead and Copper Rule TT 16 SDWIS / TX0200009 / 5000

How City of Sweeny Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric City of Sweeny Texas avg Federal benchmark
Total violations 65 101.5 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 16 22.2 Indicates a contaminant exceeded a federal MCL
PFAS detection None 93.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 3,978 4,524 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 7,351 regulated public water systems in Texas.

Federal MCL reference, Safe Drinking Water Act thresholds
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is City of Sweeny water safe to drink?
City of Sweeny (PWS ID: TX0200009) has 65 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 3,978 people using Groundwater sources.
How many people does City of Sweeny serve?
City of Sweeny serves 3,978 people in Sweeny, Texas. It is a Local-owned system using Groundwater water sources with 1,326 service connections.
What type of violations does City of Sweeny have?
City of Sweeny has 65 total violations: 16 health-based violations (MCL exceedances or treatment failures), 35 monitoring/reporting violations, and 16 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in City of Sweeny water?
No. City of Sweeny was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does City of Sweeny use?
City of Sweeny uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from?
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.
Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.