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MESA GRANDE WSC

PWS ID: TX1110018 · GRANBURY, Texas 76048-4351

MESA GRANDE WSC serves 453 people in GRANBURY, Texas using Groundwater water sources. It has 640 recorded EPA violations, including 8 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: MESA GRANDE WSC

MESA GRANDE WSC is a local-owned community water system that delivers drinking water to 453 residents in GRANBURY, Texas (Hood County) through 151 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 640 total violations for this system , of which 8 (1%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 610 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 1,2,4-Trichlorobenzene, recorded in 16 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

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. MESA GRANDE WSC's 640 violations sit above 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.

Population Served
453
Total Violations
640
Health-Based Violations
8
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
151
County
Hood
School/Daycare
No
MCL Violations
0
Monitoring Violations
610
Treatment Tech Violations
8

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
1,2,4-Trichlorobenzene MR 16 2022
cis-1,2-Dichloroethylene MR 16 2022
Xylenes, Total MR 16 2022
o-Dichlorobenzene MR 16 2022
p-Dichlorobenzene MR 16 2022
1,1-Dichloroethylene MR 16 2022
trans-1,2-Dichloroethylene MR 16 2022
1,2-Dichloroethane MR 16 2022
1,2-Dichloropropane MR 16 2022
1,1,2-Trichloroethane MR 16 2022
Benzene MR 16 2022
Ethylbenzene MR 16 2022
DICHLOROMETHANE MR 16 2022
1,1,1-Trichloroethane MR 16 2022
Trichloroethylene MR 16 2022
CHLOROBENZENE MR 16 2022
Styrene MR 16 2022
Chlorine MR 16 2019
Vinyl chloride MR 16 2022
Toluene MR 16 2022
Carbon tetrachloride MR 16 2022
Tetrachloroethylene MR 16 2022
Lead and Copper Rule MR 13 2024
Nitrate MR 12 2022
Revised Total Coliform Rule MON 12 2023
Public Notice Other 10 2022
Antimony, Total MR 8 2020
Thallium, Total MR 8 2020
Endrin MR 8 2020
BHC-GAMMA MR 8 2020

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 MESA GRANDE WSC.

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 TX1110018 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 MESA GRANDE WSC 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 Lead and Copper Rule MR 13 SDWIS / TX1110018 / 5000
2024 LEAD AND COPPER RULE REVISIONS TT 4 SDWIS / TX1110018 / 5200
2024 LEAD AND COPPER RULE REVISIONS RPT 4 SDWIS / TX1110018 / 5200
2023 Revised Total Coliform Rule MON 12 SDWIS / TX1110018 / 8000
2022 1,2,4-Trichlorobenzene MR 16 SDWIS / TX1110018 / 2378
2022 cis-1,2-Dichloroethylene MR 16 SDWIS / TX1110018 / 2380
2022 Xylenes, Total MR 16 SDWIS / TX1110018 / 2955
2022 o-Dichlorobenzene MR 16 SDWIS / TX1110018 / 2968
2022 p-Dichlorobenzene MR 16 SDWIS / TX1110018 / 2969
2022 1,1-Dichloroethylene MR 16 SDWIS / TX1110018 / 2977
2022 trans-1,2-Dichloroethylene MR 16 SDWIS / TX1110018 / 2979
2022 1,2-Dichloroethane MR 16 SDWIS / TX1110018 / 2980
2022 1,2-Dichloropropane MR 16 SDWIS / TX1110018 / 2983
2022 1,1,2-Trichloroethane MR 16 SDWIS / TX1110018 / 2985
2022 Benzene MR 16 SDWIS / TX1110018 / 2990

How MESA GRANDE WSC Compares

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

Metric MESA GRANDE WSC Texas avg Federal benchmark
Total violations 640 101.5 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 8 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 453 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 MESA GRANDE WSC water safe to drink? ▼
MESA GRANDE WSC (PWS ID: TX1110018) has 640 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 453 people using Groundwater sources.
How many people does MESA GRANDE WSC serve? ▼
MESA GRANDE WSC serves 453 people in GRANBURY, Texas. It is a Local-owned system using Groundwater water sources with 151 service connections.
What type of violations does MESA GRANDE WSC have? ▼
MESA GRANDE WSC has 640 total violations: 8 health-based violations (MCL exceedances or treatment failures), 610 monitoring/reporting violations, and 8 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in MESA GRANDE WSC water? ▼
No PFAS testing data is available for MESA GRANDE WSC under the EPA's UCMR5 monitoring program.
What water source does MESA GRANDE WSC use? ▼
MESA GRANDE WSC 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.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

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

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