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COTTONWOOD HILLS ESTATES

PWS ID: TX2200045 · AUSTIN, Texas 78723-2476

COTTONWOOD HILLS ESTATES serves 303 people in AUSTIN, Texas using Groundwater water sources. It has 166 recorded EPA violations, including 61 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: COTTONWOOD HILLS ESTATES

COTTONWOOD HILLS ESTATES is a private-owned community water system that delivers drinking water to 303 residents in AUSTIN, Texas (Tarrant County) through 101 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 166 total violations for this system , of which 61 (37%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 88 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 Gross Alpha, Excl. Radon and U, recorded in 39 violations (MCL, health-based). 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. COTTONWOOD HILLS ESTATES's 166 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
303
Total Violations
166
Health-Based Violations
61
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
101
County
Tarrant
School/Daycare
No
MCL Violations
61
Monitoring Violations
88
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Gross Alpha, Excl. Radon and U MCL 39 2019
Combined Radium (-226 and -228) MCL 22 2018
Lead and Copper Rule MR 5 2024
Endrin MR 5 2024
Methoxychlor MR 5 2024
Di(2-ethylhexyl) adipate MR 5 2024
Simazine MR 5 2024
Di(2-ethylhexyl) phthalate MR 5 2024
Hexachlorocyclopentadiene MR 5 2024
Atrazine MR 5 2024
Heptachlor MR 5 2024
HEXACHLOROBENZENE MR 5 2024
Pentachlorophenol MR 5 2024
Toxaphene MR 5 2024
LASSO MR 5 2024
Heptachlor epoxide MR 5 2024
Benzo(a)pyrene MR 5 2024
Chlordane MR 5 2024
BHC-GAMMA MR 5 2024
Nitrate MR 3 2024
Public Notice Other 2 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 COTTONWOOD HILLS ESTATES.

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 TX2200045 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 COTTONWOOD HILLS ESTATES 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 5 SDWIS / TX2200045 / 5000
2024 Endrin MR 5 SDWIS / TX2200045 / 2005
2024 Methoxychlor MR 5 SDWIS / TX2200045 / 2015
2024 Di(2-ethylhexyl) adipate MR 5 SDWIS / TX2200045 / 2035
2024 Simazine MR 5 SDWIS / TX2200045 / 2037
2024 Di(2-ethylhexyl) phthalate MR 5 SDWIS / TX2200045 / 2039
2024 Hexachlorocyclopentadiene MR 5 SDWIS / TX2200045 / 2042
2024 Atrazine MR 5 SDWIS / TX2200045 / 2050
2024 Heptachlor MR 5 SDWIS / TX2200045 / 2065
2024 HEXACHLOROBENZENE MR 5 SDWIS / TX2200045 / 2274
2024 Pentachlorophenol MR 5 SDWIS / TX2200045 / 2326
2024 Toxaphene MR 5 SDWIS / TX2200045 / 2020
2024 LASSO MR 5 SDWIS / TX2200045 / 2051
2024 Heptachlor epoxide MR 5 SDWIS / TX2200045 / 2067
2024 Benzo(a)pyrene MR 5 SDWIS / TX2200045 / 2306

How COTTONWOOD HILLS ESTATES Compares

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

Metric COTTONWOOD HILLS ESTATES Texas avg Federal benchmark
Total violations 166 101.5 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 61 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 303 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 COTTONWOOD HILLS ESTATES water safe to drink?
COTTONWOOD HILLS ESTATES (PWS ID: TX2200045) has 166 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 303 people using Groundwater sources.
How many people does COTTONWOOD HILLS ESTATES serve?
COTTONWOOD HILLS ESTATES serves 303 people in AUSTIN, Texas. It is a Private-owned system using Groundwater water sources with 101 service connections.
What type of violations does COTTONWOOD HILLS ESTATES have?
COTTONWOOD HILLS ESTATES has 166 total violations: 61 health-based violations (MCL exceedances or treatment failures), 88 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in COTTONWOOD HILLS ESTATES water?
No PFAS testing data is available for COTTONWOOD HILLS ESTATES under the EPA's UCMR5 monitoring program.
What water source does COTTONWOOD HILLS ESTATES use?
COTTONWOOD HILLS ESTATES 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.

Explore PlainWater

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

Related

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