Public water system record
Oak Hills Ranch Water
Serves an area of Guadalupe County, TX · 624 people served
Federal records show 1 health-based violation and 140 monitoring/reporting issues for Oak Hills Ranch Water in the last ten years. The most serious issue in this window was a resolved Revised Total Coliform Rule violation.
System profile
Source water
Groundwater
ZIP
63131
EPA system ID
TX0940085
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 140
Key facts
- Oak Hills Ranch Water draws water from 2 wells.
- Most recent formal enforcement: compliance order with a penalty by Texas, August 2015.
- Record on file since 2004, with 0 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 86 unknown out of 217 service lines.
Check whether Oak Hills Ranch Water serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Revised Total Coliform Rule
Treatment technique failure
|
110 | Jul 2, 2020 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Lead and Copper Rule
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2024 | Resolved |
|
Public Notice
OTHER
|
Aug 18, 2024 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2024 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2024 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2023 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2022 | Resolved |
|
Public Notice
OTHER
|
Apr 3, 2022 | Resolved |
|
Public Notice
OTHER
|
Apr 2, 2022 | Resolved |
|
Public Notice
OTHER
|
Apr 2, 2022 | Resolved |
|
Public Notice
OTHER
|
Apr 2, 2022 | Resolved |
|
Public Notice
OTHER
|
Apr 2, 2022 | Resolved |
|
Public Notice
OTHER
|
Apr 2, 2022 | Resolved |
|
Public Notice
OTHER
|
Dec 23, 2021 | Resolved |
|
Public Notice
OTHER
|
Dec 19, 2021 | Resolved |
|
Public Notice
OTHER
|
Oct 2, 2021 | Resolved |
|
Public Notice
OTHER
|
Jul 22, 2021 | Resolved |
|
Public Notice
OTHER
|
Jul 4, 2021 | Resolved |
|
Public Notice
OTHER
|
Apr 18, 2021 | Resolved |
|
Public Notice
OTHER
|
Apr 18, 2021 | Resolved |
|
Public Notice
OTHER
|
Apr 18, 2021 | Resolved |
|
Public Notice
OTHER
|
Mar 15, 2021 | Resolved |
|
Public Notice
OTHER
|
Feb 25, 2021 | Resolved |
|
Public Notice
OTHER
|
Jan 16, 2021 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2020 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2020 | Resolved |
|
Public Notice
OTHER
|
Sep 13, 2020 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2020 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2020 | Resolved |
|
Public Notice
OTHER
|
May 31, 2020 | Resolved |
|
E. coli
Monitoring and reporting
|
May 12, 2020 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Public Notice
OTHER
|
Mar 23, 2020 | Resolved |
|
Public Notice
OTHER
|
Jan 12, 2020 | Resolved |
|
Public Notice
OTHER
|
Jan 9, 2020 | Resolved |
|
Styrene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Toluene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Benzene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Oct 1, 2019 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Oct 1, 2019 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2019 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2019 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2019 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2019 | Resolved |
|
Public Notice
OTHER
|
Jan 4, 2019 | Resolved |
|
Styrene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Toluene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Benzene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Nitrite
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Public Notice
OTHER
|
Oct 25, 2018 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2018 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2018 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2018 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2018 | Resolved |
|
Chlordane
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Pentachlorophenol
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Benzo(a)pyrene
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
HEXACHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Heptachlor epoxide
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Heptachlor
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
LASSO
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Atrazine
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Hexachlorocyclopentadiene
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Di(2-ethylhexyl) phthalate
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Simazine
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Di(2-ethylhexyl) adipate
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Toxaphene
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Methoxychlor
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
BHC-GAMMA
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Endrin
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
CYANIDE
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Dec 30, 2017 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2017 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2016 | Resolved |
|
Public Notice
OTHER
|
Jan 8, 2016 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2015 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Dec 30, 2014 | Resolved |
|
Public Notice
OTHER
|
Aug 19, 2014 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2014 | Resolved |
|
Public Notice
OTHER
|
May 13, 2014 | Resolved |
|
Public Notice
OTHER
|
Apr 12, 2014 | Resolved |
|
Public Notice
OTHER
|
Feb 24, 2014 | Resolved |
|
Public Notice
OTHER
|
Feb 13, 2014 | Resolved |
|
Public Notice
OTHER
|
Feb 13, 2014 | Resolved |
|
Public Notice
OTHER
|
Dec 1, 2013 | Resolved |
|
E. coli
Monitoring and reporting
|
Dec 1, 2013 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2013 | Resolved |
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Jan 1, 2013 | Resolved |
|
Combined Uranium
Monitoring and reporting
|
Jan 1, 2013 | Resolved |
|
Gross Alpha, Excl. Radon and U
Monitoring and reporting
|
Jan 1, 2013 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2012 | Resolved |
Full record since 2004
EPA's records for Oak Hills Ranch Water go back to 2004. Before October 19, 2016 they list no health-based violations and 129 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 0 | 87 |
| 2010 to October 18, 2016 | 0 | 42 |
| October 19, 2016 to 2019 | 0 | 59 |
| 2020s | 1 | 63 |
Enforcement actions
Texas regulators took 2 formal enforcement actions against Oak Hills Ranch Water between 2012 and 2015. The most recent was a compliance order with a penalty in August 2015.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Aug 24, 2015 | Texas | Compliance order with a penalty | 15 violations: Consumer Confidence Rule, Public Notice, Haloacetic Acids (HAA5), E. coli, Total Trihalomethanes (TTHMs) |
| Jan 8, 2012 | Texas | Compliance order with a penalty | 17 violations: Consumer Confidence Rule, Chlorine |
What the violations mean
Revised Total Coliform Rule
1 incidentThe system did not meet a requirement of the Revised Total Coliform Rule
Coliform and E. coli rules protect against bacteria in the distribution system
Where the water comes from
Oak Hills Ranch Water draws water from 2 wells.
Annual water quality report
Oak Hills Ranch Water must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Texas.
Certified drinking water labs by state EPA guidance for private wells