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Community Water System · PWS TX0210039

Benchley Oaks Subdivision

Cypress, Texas 77429-7080 - drinking water served from groundwater sources to 567 people, tracked in EPA SDWIS and UCMR5.

567
People served
85
EPA violations
12
Health-based
Untested
UCMR5 result

The verdict

EPA records 85 drinking-water violations at Benchley Oaks Subdivision, 14% of them health-based - below the Texas per-system average.

85
Total EPA violations on record
14%
Health-based (MCL / treatment failure)
567
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Benchley Oaks Subdivision

Benchley Oaks Subdivision is a private-owned community water system that delivers drinking water to 567 residents in Cypress, Texas (Brazos County) through 189 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 85 total violations for this system , of which 12 (14%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 57 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 Chlorine, recorded in 39 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. Statewide, 1,068 of 1,147 UCMR5-tested systems have reported PFAS detections (93.1%).

Benchley Oaks Subdivision's 85 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
567
Total Violations
85
Health-Based Violations
12
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
189
County
Brazos
School/Daycare
No
MCL Violations
12
Monitoring Violations
57
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Chlorine MR 39 2007
TTHM MCL 8 2025
Coliform (TCR) MR 7 2010
Consumer Confidence Rule Other 6 2012
Coliform (TCR) MCL 4 2008
E. COLI MR 4 2016
Public Notice Other 3 2016
Lead and Copper Rule MR 2 2014
Aldicarb MR 1 2022
OXAMYL MR 1 2022
Aldicarb sulfone MR 1 2022
Aldicarb sulfoxide MR 1 2022
Carbofuran MR 1 2022

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 Benchley Oaks Subdivision.

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 TX0210039 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 Benchley Oaks Subdivision 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 TTHM MCL 8 SDWIS / TX0210039 / 2950
2022 Aldicarb MR 1 SDWIS / TX0210039 / 2047
2022 OXAMYL MR 1 SDWIS / TX0210039 / 2036
2022 Aldicarb sulfone MR 1 SDWIS / TX0210039 / 2044
2022 Aldicarb sulfoxide MR 1 SDWIS / TX0210039 / 2043
2022 Carbofuran MR 1 SDWIS / TX0210039 / 2046
2016 E. COLI MR 4 SDWIS / TX0210039 / 3014
2016 Public Notice Other 3 SDWIS / TX0210039 / 7500
2014 Lead and Copper Rule MR 2 SDWIS / TX0210039 / 5000
2012 Consumer Confidence Rule Other 6 SDWIS / TX0210039 / 7000
2010 Coliform (TCR) MR 7 SDWIS / TX0210039 / 3100
2008 Coliform (TCR) MCL 4 SDWIS / TX0210039 / 3100
2007 Chlorine MR 39 SDWIS / TX0210039 / 0999

How Benchley Oaks Subdivision Compares

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

Metric Benchley Oaks Subdivision Texas avg Federal benchmark
Total violations 85 101.5 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 12 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 567 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 Benchley Oaks Subdivision water safe to drink? ▼
Benchley Oaks Subdivision (PWS ID: TX0210039) has 85 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 567 people using Groundwater sources.
How many people does Benchley Oaks Subdivision serve? ▼
Benchley Oaks Subdivision serves 567 people in Cypress, Texas. It is a Private-owned system using Groundwater water sources with 189 service connections.
What type of violations does Benchley Oaks Subdivision have? ▼
Benchley Oaks Subdivision has 85 total violations: 12 health-based violations (MCL exceedances or treatment failures), 57 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Benchley Oaks Subdivision water? ▼
No PFAS testing data is available for Benchley Oaks Subdivision under the EPA's UCMR5 monitoring program.
What water source does Benchley Oaks Subdivision use? ▼
Benchley Oaks Subdivision 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.