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Community Water System · PWS TX0360017

City of Mont Belvieu

Mont Belvieu, Texas 77580-1048 - drinking water served from groundwater sources to 12,864 people, tracked in EPA SDWIS and UCMR5.

12,864
People served
48
EPA violations
14
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 48 drinking-water violations at City of Mont Belvieu, 29% of them health-based - below the Texas per-system average.

48
Total EPA violations on record
29%
Health-based (MCL / treatment failure)
12,864
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: City of Mont Belvieu

City of Mont Belvieu is a local-owned community water system that delivers drinking water to 12,864 residents in Mont Belvieu, Texas (Chambers County) through 4,488 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 48 total violations for this system , of which 14 (29%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 28 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 14 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 Mont Belvieu's 48 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
12,864
Total Violations
48
Health-Based Violations
14
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
4,488
County
Chambers
School/Daycare
No
MCL Violations
14
Monitoring Violations
28
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 14 2016
TTHM MCL 12 2024
Chlorine MR 8 2017
Coliform (TCR) MR 6 2010
Fluoride MCL 2 1978
Public Notice Other 2 2016

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 74 samples detected PFAS.

Contaminant Date Result MRL Status
NEtFOSAA 4/7/2025 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 4/7/2025 <7.00 ppt 7.00 ppt Not Detected
PFTA 4/7/2025 <8.00 ppt 8.00 ppt Not Detected
NMeFOSAA 4/7/2025 <6.00 ppt 6.00 ppt Not Detected
NMeFOSAA 4/7/2025 <6.00 ppt 6.00 ppt Not Detected
NEtFOSAA 4/7/2025 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 4/7/2025 <7.00 ppt 7.00 ppt Not Detected
PFTA 4/7/2025 <8.00 ppt 8.00 ppt Not Detected
PFTA 4/7/2025 <8.00 ppt 8.00 ppt Not Detected
PFTrDA 4/7/2025 <7.00 ppt 7.00 ppt Not Detected
NEtFOSAA 4/7/2025 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 4/7/2025 <6.00 ppt 6.00 ppt Not Detected
PFTA 10/7/2025 <8.00 ppt 8.00 ppt Not Detected
PFNA 10/7/2025 <4.00 ppt 4.00 ppt Not Detected
PFPeA 10/7/2025 <3.00 ppt 3.00 ppt Not Detected
PFEESA 10/7/2025 <3.00 ppt 3.00 ppt Not Detected
NFDHA 10/7/2025 <20.00 ppt 20.00 ppt Not Detected
8:2 FTS 10/7/2025 <5.00 ppt 5.00 ppt Not Detected
PFHpS 10/7/2025 <3.00 ppt 3.00 ppt Not Detected
PFMPA 10/7/2025 <4.00 ppt 4.00 ppt Not Detected
PFTrDA 10/7/2025 <7.00 ppt 7.00 ppt Not Detected
NEtFOSAA 10/7/2025 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 10/7/2025 <6.00 ppt 6.00 ppt Not Detected
PFPeS 10/7/2025 <4.00 ppt 4.00 ppt Not Detected
PFOS 10/7/2025 <4.00 ppt 4.00 ppt Not Detected
PFHxS 10/7/2025 <3.00 ppt 3.00 ppt Not Detected
PFHpA 10/7/2025 <3.00 ppt 3.00 ppt Not Detected
PFBS 10/7/2025 <3.00 ppt 3.00 ppt Not Detected
ADONA 10/7/2025 <3.00 ppt 3.00 ppt Not Detected
PFMBA 10/7/2025 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 10/7/2025 <2.00 ppt 2.00 ppt Not Detected
4:2 FTS 10/7/2025 <3.00 ppt 3.00 ppt Not Detected
PFOA 10/7/2025 <4.00 ppt 4.00 ppt Not Detected
PFDA 10/7/2025 <3.00 ppt 3.00 ppt Not Detected
PFDoA 10/7/2025 <3.00 ppt 3.00 ppt Not Detected
PFHxA 10/7/2025 <3.00 ppt 3.00 ppt Not Detected
PFUnA 10/7/2025 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 10/7/2025 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 10/7/2025 <5.00 ppt 5.00 ppt Not Detected
PFBA 10/7/2025 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 10/7/2025 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 10/7/2025 <3.00 ppt 3.00 ppt Not Detected
PFDA 10/7/2025 <3.00 ppt 3.00 ppt Not Detected
PFDoA 10/7/2025 <3.00 ppt 3.00 ppt Not Detected
PFNA 10/7/2025 <4.00 ppt 4.00 ppt Not Detected
PFHxS 10/7/2025 <3.00 ppt 3.00 ppt Not Detected
PFHpA 10/7/2025 <3.00 ppt 3.00 ppt Not Detected
PFBS 10/7/2025 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 10/7/2025 <5.00 ppt 5.00 ppt Not Detected
PFBA 10/7/2025 <5.00 ppt 5.00 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 Mont Belvieu.

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 TX0360017 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 Mont Belvieu 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
2024 TTHM MCL 12 SDWIS / TX0360017 / 2950
2017 Chlorine MR 8 SDWIS / TX0360017 / 0999
2016 Lead and Copper Rule MR 14 SDWIS / TX0360017 / 5000
2016 Public Notice Other 2 SDWIS / TX0360017 / 7500
2010 Coliform (TCR) MR 6 SDWIS / TX0360017 / 3100
1978 Fluoride MCL 2 SDWIS / TX0360017 / 1025

How City of Mont Belvieu Compares

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

Metric City of Mont Belvieu Texas avg Federal benchmark
Total violations 48 101.5 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 14 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 12,864 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 Mont Belvieu water safe to drink?
City of Mont Belvieu (PWS ID: TX0360017) has 48 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 12,864 people using Groundwater sources.
How many people does City of Mont Belvieu serve?
City of Mont Belvieu serves 12,864 people in Mont Belvieu, Texas. It is a Local-owned system using Groundwater water sources with 4,488 service connections.
What type of violations does City of Mont Belvieu have?
City of Mont Belvieu has 48 total violations: 14 health-based violations (MCL exceedances or treatment failures), 28 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in City of Mont Belvieu water?
No. City of Mont Belvieu was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does City of Mont Belvieu use?
City of Mont Belvieu 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.