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ROCK CREEK ESTATES

PWS ID: TX1260082 · CYPRESS, Texas 77429-7080

ROCK CREEK ESTATES serves 132 people in CYPRESS, Texas using Groundwater water sources. It has 157 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: ROCK CREEK ESTATES

ROCK CREEK ESTATES is a private-owned community water system that delivers drinking water to 132 residents in CYPRESS, Texas (Johnson County) through 44 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 157 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 145 monitoring and reporting violations are on file. The most recent violation on record dates to 2019.

The most frequently cited contaminant at this system is cis-1,2-Dichloroethylene, recorded in 4 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. ROCK CREEK ESTATES's 157 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
132
Total Violations
157
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
44
County
Johnson
School/Daycare
No
MCL Violations
0
Monitoring Violations
145
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
cis-1,2-Dichloroethylene MR 4 2018
o-Dichlorobenzene MR 4 2018
p-Dichlorobenzene MR 4 2018
1,1-Dichloroethylene MR 4 2018
trans-1,2-Dichloroethylene MR 4 2018
1,2-Dichloroethane MR 4 2018
1,1,1-Trichloroethane MR 4 2018
1,2-Dichloropropane MR 4 2018
Toluene MR 4 2018
Cadmium MR 4 2016
Chromium MR 4 2016
Mercury MR 4 2016
Antimony, Total MR 4 2016
Thallium, Total MR 4 2016
Revised Total Coliform Rule MON 4 2019
Arsenic MR 4 2016
Beryllium, Total MR 4 2016
Combined Uranium MR 4 2016
1,2,4-Trichlorobenzene MR 4 2018
Ethylbenzene MR 4 2018
CHLOROBENZENE MR 4 2018
Carbon tetrachloride MR 4 2018
Nitrate MR 4 2018
Benzene MR 4 2018
Vinyl chloride MR 4 2018
Barium MR 4 2016
DICHLOROMETHANE MR 4 2018
Combined Radium (-226 and -228) MR 4 2016
Tetrachloroethylene MR 4 2018
Trichloroethylene MR 4 2018

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 ROCK CREEK 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 TX1260082 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 ROCK CREEK 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
2019 Revised Total Coliform Rule MON 4 SDWIS / TX1260082 / 8000
2019 Chlorine MR 4 SDWIS / TX1260082 / 0999
2018 cis-1,2-Dichloroethylene MR 4 SDWIS / TX1260082 / 2380
2018 o-Dichlorobenzene MR 4 SDWIS / TX1260082 / 2968
2018 p-Dichlorobenzene MR 4 SDWIS / TX1260082 / 2969
2018 1,1-Dichloroethylene MR 4 SDWIS / TX1260082 / 2977
2018 trans-1,2-Dichloroethylene MR 4 SDWIS / TX1260082 / 2979
2018 1,2-Dichloroethane MR 4 SDWIS / TX1260082 / 2980
2018 1,1,1-Trichloroethane MR 4 SDWIS / TX1260082 / 2981
2018 1,2-Dichloropropane MR 4 SDWIS / TX1260082 / 2983
2018 Toluene MR 4 SDWIS / TX1260082 / 2991
2018 1,2,4-Trichlorobenzene MR 4 SDWIS / TX1260082 / 2378
2018 Ethylbenzene MR 4 SDWIS / TX1260082 / 2992
2018 CHLOROBENZENE MR 4 SDWIS / TX1260082 / 2989
2018 Carbon tetrachloride MR 4 SDWIS / TX1260082 / 2982

How ROCK CREEK ESTATES Compares

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

Metric ROCK CREEK ESTATES Texas avg Federal benchmark
Total violations 157 101.5 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 93.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 132 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 ROCK CREEK ESTATES water safe to drink? ▼
ROCK CREEK ESTATES (PWS ID: TX1260082) has 157 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 132 people using Groundwater sources.
How many people does ROCK CREEK ESTATES serve? ▼
ROCK CREEK ESTATES serves 132 people in CYPRESS, Texas. It is a Private-owned system using Groundwater water sources with 44 service connections.
What type of violations does ROCK CREEK ESTATES have? ▼
ROCK CREEK ESTATES has 157 total violations: 0 health-based violations (MCL exceedances or treatment failures), 145 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in ROCK CREEK ESTATES water? ▼
No PFAS testing data is available for ROCK CREEK ESTATES under the EPA's UCMR5 monitoring program.
What water source does ROCK CREEK ESTATES use? ▼
ROCK CREEK 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.

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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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