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Community Water System · PWS TX1010196

Ralston Acres Water Supply Corporation

Houston, Texas 77044-2719 - drinking water served from groundwater sources to 385 people, tracked in EPA SDWIS and UCMR5.

385
People served
651
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 651 drinking-water violations at Ralston Acres Water Supply Corporation - above the Texas per-system average.

651
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
385
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Ralston Acres Water Supply Corporation

Ralston Acres Water Supply Corporation is a local-owned community water system that delivers drinking water to 385 residents in Houston, Texas (Harris County) through 97 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 651 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 576 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 Public Notice, recorded in 47 violations (Other). 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. Statewide, 610 of 1,147 UCMR5-tested systems have reported PFAS detections (53.2%).

Ralston Acres Water Supply Corporation's 651 violations sit above 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
385
Total Violations
651
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
97
County
Harris
School/Daycare
No
MCL Violations
0
Monitoring Violations
576
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Public Notice Other 47 2022
Coliform (TCR) MR 44 2011
Revised Total Coliform Rule MON 24 2024
Lead and Copper Rule MR 14 2021
Nitrate MR 14 2020
1,2,4-Trichlorobenzene MR 14 2020
DICHLOROMETHANE MR 14 2020
Vinyl chloride MR 14 2020
Carbon tetrachloride MR 14 2020
1,2-Dichloropropane MR 14 2020
Tetrachloroethylene MR 14 2020
CHLOROBENZENE MR 14 2020
Toluene MR 14 2020
Ethylbenzene MR 14 2020
Styrene MR 14 2020
Xylenes, Total MR 14 2020
p-Dichlorobenzene MR 14 2020
trans-1,2-Dichloroethylene MR 14 2020
1,1,2-Trichloroethane MR 14 2020
o-Dichlorobenzene MR 14 2020
1,1-Dichloroethylene MR 14 2020
1,1,1-Trichloroethane MR 14 2020
Benzene MR 14 2020
cis-1,2-Dichloroethylene MR 14 2020
1,2-Dichloroethane MR 14 2020
Trichloroethylene MR 14 2020
Consumer Confidence Rule Other 10 2021
1,2-DIBROMO-3-CHLOROPROPANE MR 5 2016
ETHYLENE DIBROMIDE MR 5 2016
Dalapon MR 5 2016

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 Ralston Acres Water Supply Corporation.

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 TX1010196 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 Ralston Acres Water Supply Corporation 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 Revised Total Coliform Rule MON 24 SDWIS / TX1010196 / 8000
2022 Public Notice Other 47 SDWIS / TX1010196 / 7500
2021 Lead and Copper Rule MR 14 SDWIS / TX1010196 / 5000
2021 Consumer Confidence Rule Other 10 SDWIS / TX1010196 / 7000
2020 Nitrate MR 14 SDWIS / TX1010196 / 1040
2020 1,2,4-Trichlorobenzene MR 14 SDWIS / TX1010196 / 2378
2020 DICHLOROMETHANE MR 14 SDWIS / TX1010196 / 2964
2020 Vinyl chloride MR 14 SDWIS / TX1010196 / 2976
2020 Carbon tetrachloride MR 14 SDWIS / TX1010196 / 2982
2020 1,2-Dichloropropane MR 14 SDWIS / TX1010196 / 2983
2020 Tetrachloroethylene MR 14 SDWIS / TX1010196 / 2987
2020 CHLOROBENZENE MR 14 SDWIS / TX1010196 / 2989
2020 Toluene MR 14 SDWIS / TX1010196 / 2991
2020 Ethylbenzene MR 14 SDWIS / TX1010196 / 2992
2020 Styrene MR 14 SDWIS / TX1010196 / 2996

How Ralston Acres Water Supply Corporation Compares

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

Metric Ralston Acres Water Supply Corporation Texas avg Federal benchmark
Total violations 651 101.5 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 22.2 Indicates a contaminant exceeded a federal MCL
PFAS detection None 53.2% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 385 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 Ralston Acres Water Supply Corporation water safe to drink? ▼
Ralston Acres Water Supply Corporation (PWS ID: TX1010196) has 651 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 385 people using Groundwater sources.
How many people does Ralston Acres Water Supply Corporation serve? ▼
Ralston Acres Water Supply Corporation serves 385 people in Houston, Texas. It is a Local-owned system using Groundwater water sources with 97 service connections.
What type of violations does Ralston Acres Water Supply Corporation have? ▼
Ralston Acres Water Supply Corporation has 651 total violations: 0 health-based violations (MCL exceedances or treatment failures), 576 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Ralston Acres Water Supply Corporation water? ▼
No PFAS testing data is available for Ralston Acres Water Supply Corporation under the EPA's UCMR5 monitoring program.
What water source does Ralston Acres Water Supply Corporation use? ▼
Ralston Acres Water Supply Corporation 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. This data is provided for informational purposes only.

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

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.