Our Lady of the Lake University
A missed test is not evidence of bad water. It also is not evidence of good water: for that period nobody checked.
On record since 1995: 13 violations. 3 treatment lapses · 5 missed or late tests · 5 notices or reports. Most recent began 2025-05-01.
None of them is a measurement of contaminated water.
For this year's test results, ask the utility for its annual Consumer Confidence Report. Every community system must publish one.
More violations on record than 68% of active water systems in Texas. Small systems with no staff chemist often rack up missed-test violations; big utilities rarely do.
The record, year by year
Across Texas, 60% of violations are missed or late tests and 10% are water over a limit.
Lead & copper at the tap
Utilities sample taps in homes most likely to have lead pipes, and report the 90th-percentile result: 9 in 10 homes sampled came in at or below this number. Above the red line (the action level) the utility must act. The action level is not a safe level; EPA's health goal for lead is zero. EPA's file does not date these results, so they are shown highest first.
Lead, 90th percentile 3 results on file · action level 15 ppb
Open now (1)
- 2025-05-01Public NoticePN Violation for NPDWR ViolationOpen
Every violation on record
- 2025-05-01Public NoticePN Violation for NPDWR ViolationOpen
- 2024-10-17Lead service line inventoryRPTBack in compliance
- 2024-10-17Lead service line inventoryTTBack in compliance
- 2021-10-01Public NoticePN Violation for NPDWR ViolationBack in compliance
- 2021-10-01ChlorineMonitoring and Reporting (DBP)Back in compliance
- 2018-12-30Lead and Copper RuleLead Consumer NoticeBack in compliance
- 2018-01-01ChlorineMonitoring and Reporting (DBP)Back in compliance
- 2017-01-14Public NoticePN Violation for NPDWR ViolationBack in compliance
- 2016-12-01Lead and Copper RulePublic EducationBack in compliance
- 2016-02-08Public NoticePN Violation for NPDWR ViolationBack in compliance
- 2015-10-01Lead and Copper RuleFollow-up Or Routine LCR Tap M/RBack in compliance
- 2014-12-30Lead and Copper RuleLead Consumer NoticeBack in compliance
- 1995-10-26Lead and Copper RuleOCCT/SOWT Study/RecommendationBack in compliance
System details
| Population served | 550 |
| Service connections | 11 |
| Water source | Groundwater |
| System type | Non-Transient Non-Community |
| Owner | Private |
| Status | Active |
| City | San Antonio |
| EPA ZIP on file | 78207-4617 |
Areas served
- Bexar County
Reading this record
Our Lady of the Lake University is a non-transient non-community that draws from groundwater and serves about 550 people in San Antonio, Texas. Everything above comes from the EPA's Safe Drinking Water Information System (SDWIS), where states report every violation by every public water system.
Four kinds of violation. Only one is a measurement of the water: over the limit means a test came back above a legal maximum (an MCL). A treatment lapse means a required protective step was not done, such as disinfection, filtration, fixing a defect an inspector found, or filing a lead-pipe inventory. A missed or late test means a required test was skipped or never reported. That is the most common kind, and the most misread: it does not mean the water was bad, and it does not mean the water was fine. Notices and reports covers public notices and the annual Consumer Confidence Report.
Status. “Back in compliance” means the state recorded a return to compliance. “Period ended” means the violation's compliance period is over but no return to compliance was ever filed, which is common in older records. EPA's federal copy lags state records by months, so call the utility for anything current.