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CITY OF OVILLA

PWS ID: TX0700067 · OVILLA, Texas 75154-1493

CITY OF OVILLA serves 4,532 people in OVILLA, Texas using Surface Water water sources. It has 87 recorded EPA violations, including 24 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (4 compounds found).

Water Quality Snapshot: CITY OF OVILLA

CITY OF OVILLA is a local-owned community water system that delivers drinking water to 4,532 residents in OVILLA, Texas (Ellis County) through 1,304 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 87 total violations for this system , of which 24 (28%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 54 monitoring and reporting violations are on file. The most recent violation on record dates to 2015.

The most frequently cited contaminant at this system is Chlorine, recorded in 48 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 4 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 0.0105 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

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. CITY OF OVILLA's 87 violations sit below the Texas average. Statewide, 1,068 of 1,147 UCMR5-tested systems have reported PFAS detections (93.1%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

4 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
4,532
Total Violations
87
Health-Based Violations
24
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
1,304
County
Ellis
School/Daycare
No
MCL Violations
24
Monitoring Violations
54
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Chlorine MR 48 2014
TTHM MCL 19 2008
Coliform (TCR) MCL 5 2006
Coliform (TCR) MR 5 2006
Consumer Confidence Rule Other 2 2015
Lead and Copper Rule MR 1 2013
Coliform (TCR) Other 1 1991

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 12 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
PFBS 7/12/2023 0.0045 µg/L 0.003 µg/L Detected
6:2 FTS 7/12/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFEESA 7/12/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 7/12/2023 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 7/12/2023 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 7/12/2023 <0.006 µg/L 0.006 µg/L Not Detected
PFMPA 7/12/2023 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 7/12/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 7/12/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 7/12/2023 0.0050 µg/L 0.003 µg/L Detected
PFDoA 7/12/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 7/12/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 7/12/2023 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 7/12/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFNA 7/12/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 7/12/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 7/12/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 7/12/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 7/12/2023 0.0080 µg/L 0.005 µg/L Detected
PFHxA 7/12/2023 0.0048 µg/L 0.003 µg/L Detected
PFUnA 7/12/2023 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 7/12/2023 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 7/12/2023 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 7/12/2023 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 7/12/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFOA 7/12/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 7/12/2023 <0.003 µg/L 0.003 µg/L Not Detected
lithium 7/12/2023 <9 µg/L 9 µg/L Not Detected
PFTA 7/12/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFPeS 7/12/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFHpA 4/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 4/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 4/18/2023 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 4/18/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 4/18/2023 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 4/18/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFHpS 4/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 4/18/2023 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 4/18/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 4/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 4/18/2023 0.0039 µg/L 0.003 µg/L Detected
PFHxS 4/18/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 4/18/2023 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 4/18/2023 <0.004 µg/L 0.004 µg/L Not Detected
6:2 FTS 4/18/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 4/18/2023 0.0053 µg/L 0.003 µg/L Detected
PFMPA 4/18/2023 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 4/18/2023 <0.005 µg/L 0.005 µg/L Not Detected
lithium 4/18/2023 <9 µg/L 9 µg/L Not Detected
4:2 FTS 4/18/2023 <0.003 µg/L 0.003 µg/L 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 OVILLA.

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 TX0700067 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 OVILLA 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
2015 Consumer Confidence Rule Other 2 SDWIS / TX0700067 / 7000
2014 Chlorine MR 48 SDWIS / TX0700067 / 0999
2013 Lead and Copper Rule MR 1 SDWIS / TX0700067 / 5000
2008 TTHM MCL 19 SDWIS / TX0700067 / 2950
2006 Coliform (TCR) MCL 5 SDWIS / TX0700067 / 3100
2006 Coliform (TCR) MR 5 SDWIS / TX0700067 / 3100
1991 Coliform (TCR) Other 1 SDWIS / TX0700067 / 3100

How CITY OF OVILLA Compares

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

Metric CITY OF OVILLA Texas avg Federal benchmark
Total violations 87 101.5 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 24 22.2 Indicates a contaminant exceeded a federal MCL
PFAS detection 4 compounds 93.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 4,532 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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is CITY OF OVILLA water safe to drink? ▼
CITY OF OVILLA (PWS ID: TX0700067) has 87 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 4 PFAS compounds found. This system serves 4,532 people using Surface Water sources.
How many people does CITY OF OVILLA serve? ▼
CITY OF OVILLA serves 4,532 people in OVILLA, Texas. It is a Local-owned system using Surface Water water sources with 1,304 service connections.
What type of violations does CITY OF OVILLA have? ▼
CITY OF OVILLA has 87 total violations: 24 health-based violations (MCL exceedances or treatment failures), 54 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 OVILLA water? ▼
Yes. UCMR5 testing detected 4 PFAS compounds in CITY OF OVILLA's water supply: PFBS, PFPeA, PFBA, PFHxA. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does CITY OF OVILLA use? ▼
CITY OF OVILLA uses Surface Water 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.

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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.

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial