DES PERES, TX · Guadalupe County
OAK HILLS RANCH WATER Water System
Consumer Confidence Report status
OAK HILLS RANCH WATER must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for OAK HILLS RANCH WATER.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Texas’s official records. Always confirm current status with Texas before making decisions based on this information.
System facts
- System ID (PWSID)
- TX0940085
- System type
- Community Water System
- Population served
- 624
- Service connections
- 208
- Ownership
- privately owned
- Water source
- groundwater (wells)
OAK HILLS RANCH WATER is one of 1,859 community water systems in Texas in the 501 to 3,300 people size category, serving 624 people from groundwater.
As of August 1, 2026, its federal record holds 61 entries between 2004 and 2009, all of which EPA lists as closed. Nothing has been added since 2009.
Of the 61, 56 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves volatile organic chemicals, inorganic chemicals, and the Consumer Confidence Rule.
Violation history
Consumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2009 – August 23, 2011
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2008 – August 23, 2011
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Styrene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Toluene
January 1, 2008 – December 31, 2010
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2007 – August 23, 2011
ResolvedConsumer Confidence Report Inadequate Reporting
—Consumer Confidence Rule
January 1, 2007 – August 23, 2011
ResolvedConsumer Confidence Report Inadequate Reporting
—Consumer Confidence Rule
January 1, 2006 – August 23, 2011
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Benzene
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Toluene
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Styrene
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Xylenes, Total
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Benzene
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Toluene
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Styrene
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Cadmium
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Chromium
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Mercury
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Selenium
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Thallium, Total
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Nitrate
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Xylenes, Total
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2004 – December 31, 2004
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2009 – August 23, 2011 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| July 1, 2008 – August 23, 2011 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Toluene | — | Resolved |
| July 1, 2007 – August 23, 2011 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| January 1, 2007 – August 23, 2011 | Consumer Confidence Report Inadequate Reporting | Consumer Confidence Rule | — | Resolved |
| January 1, 2006 – August 23, 2011 | Consumer Confidence Report Inadequate Reporting | Consumer Confidence Rule | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Xylenes, Total | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Cadmium | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Chromium | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Mercury | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Selenium | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Thallium, Total | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Nitrate | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Xylenes, Total | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- February 21, 2024State Public Notification requested123 linked violations
- April 26, 2021State Violation/Reminder Notice97 linked violations
- April 16, 2020State Violation/Reminder Notice100 linked violations
- October 7, 2014State Compliance achieved261 linked violations
- June 15, 2011State Public Notification requested146 linked violations
- October 1, 2009State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- July 27, 2009State Formal Notice of Violation issued221 linked violations
- January 28, 2009State Formal Notice of Violation issued52 linked violations
Common questions
Is OAK HILLS RANCH WATER required to publish a Consumer Confidence Report?
- Yes. OAK HILLS RANCH WATER is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is OAK HILLS RANCH WATER’s next Consumer Confidence Report due?
- OAK HILLS RANCH WATER’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does OAK HILLS RANCH WATER have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for OAK HILLS RANCH WATER.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
WITTWER, CLARENCE
254-355-9124
DES PERES, MO 63131-1871