San Leon MUD

Published drinking-water records and contacts for San Leon MUD. System TX0840063. Review sources and dates; not a real-time water assessment.

System ID: TX0840063
State or territory: TX
Published population served: 11622
System type (source code): CWS

Published records and dates

PFAS / lithium (EPA UCMR 5): 120 — 2024-07-26 – 2025-04-24
Lead and copper monitoring summaries: 15 — 1993-01-01 – 2024-12-31

Missing records here do not mean the provider did not test. Published records are not a real-time assessment of your tap water.

Published testing results

Selected recent records are shown below. Different sampling locations and dates are not interchangeable. These excerpts are not a complete testing history.

“<” means below the stated reporting limit, not zero. A reported measurement alone is not a safety verdict. Read an example

EPA UCMR 5 — most recent imported sample per substance
Substance	Published result	Reporting limit	Sample date	Sampling location
11Cl-PF3OUdS	< 0.005 µg/L	0.005 µg/L	2025-04-24	EP/SW 001 / SP001
4:2 FTS	< 0.003 µg/L	0.003 µg/L	2025-04-24	EP/SW 001 / SP001
6:2 FTS	< 0.005 µg/L	0.005 µg/L	2025-04-24	EP/SW 001 / SP001
8:2 FTS	< 0.005 µg/L	0.005 µg/L	2025-04-24	EP/SW 001 / SP001
9Cl-PF3ONS	< 0.002 µg/L	0.002 µg/L	2025-04-24	EP/SW 001 / SP001
ADONA	< 0.003 µg/L	0.003 µg/L	2025-04-24	EP/SW 001 / SP001
HFPO-DA	< 0.005 µg/L	0.005 µg/L	2025-04-24	EP/SW 001 / SP001
NEtFOSAA	< 0.005 µg/L	0.005 µg/L	2025-04-24	EP/SW 001 / SP001
NFDHA	< 0.02 µg/L	0.02 µg/L	2025-04-24	EP/SW 001 / SP001
NMeFOSAA	< 0.006 µg/L	0.006 µg/L	2025-04-24	EP/SW 001 / SP001
PFBA	0.0132 µg/L	0.005 µg/L	2025-04-24	EP/SW 001 / SP001
PFBS	0.0034 µg/L	0.003 µg/L	2025-04-24	EP/SW 001 / SP001
PFDA	< 0.003 µg/L	0.003 µg/L	2025-04-24	EP/SW 001 / SP001
PFDoA	< 0.003 µg/L	0.003 µg/L	2025-04-24	EP/SW 001 / SP001
PFEESA	< 0.003 µg/L	0.003 µg/L	2025-04-24	EP/SW 001 / SP001
PFHpA	< 0.003 µg/L	0.003 µg/L	2025-04-24	EP/SW 001 / SP001
PFHpS	< 0.003 µg/L	0.003 µg/L	2025-04-24	EP/SW 001 / SP001
PFHxA	0.0044 µg/L	0.003 µg/L	2025-04-24	EP/SW 001 / SP001
PFHxS	< 0.003 µg/L	0.003 µg/L	2025-04-24	EP/SW 001 / SP001
PFMBA	< 0.003 µg/L	0.003 µg/L	2025-04-24	EP/SW 001 / SP001
PFMPA	< 0.004 µg/L	0.004 µg/L	2025-04-24	EP/SW 001 / SP001
PFNA	< 0.004 µg/L	0.004 µg/L	2025-04-24	EP/SW 001 / SP001
PFOA	< 0.004 µg/L	0.004 µg/L	2025-04-24	EP/SW 001 / SP001
PFOS	< 0.004 µg/L	0.004 µg/L	2025-04-24	EP/SW 001 / SP001
PFPeA	0.0690 µg/L	0.003 µg/L	2025-04-24	EP/SW 001 / SP001
PFPeS	< 0.004 µg/L	0.004 µg/L	2025-04-24	EP/SW 001 / SP001
PFTA	< 0.008 µg/L	0.008 µg/L	2025-04-24	EP/SW 001 / SP001
PFTrDA	< 0.007 µg/L	0.007 µg/L	2025-04-24	EP/SW 001 / SP001
PFUnA	< 0.002 µg/L	0.002 µg/L	2025-04-24	EP/SW 001 / SP001
lithium	17.5 µg/L	9 µg/L	2025-04-24	EP/SW 001 / SP001

Download all EPA UCMR 5 records (CSV)

Lead and copper: 90th-percentile summaries

These describe a monitoring period across sampled locations, not the result at your home. How to read the 90th percentile

Eight most recent imported monitoring summaries
Substance	Published 90th percentile	Monitoring period	Source quarter
Lead (PB90)	0 mg/L	2022-01-01 – 2024-12-31	2026Q3
Lead (PB90)	0 mg/L	2019-01-01 – 2021-12-31	2026Q3
Lead (PB90)	0 mg/L	2018-01-01 – 2018-12-31	2026Q3
Lead (PB90)	0.00269 mg/L	2015-01-01 – 2017-12-31	2026Q3
Lead (PB90)	0.0012 mg/L	2014-01-01 – 2014-12-31	2026Q3
Lead (PB90)	0.01 mg/L	2011-01-01 – 2013-12-31	2026Q3
Lead (PB90)	0.00318 mg/L	2008-01-01 – 2010-12-31	2026Q3
Lead (PB90)	0.0026 mg/L	2006-01-01 – 2008-12-31	2026Q3

Published compliance history

14 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.

Twenty most recent imported compliance records
Rule / record	Period	Recorded status	Health-based (EPA classification)	Source quarter
Lead and Copper Rule Revisions / Notification, Known or Potential LSL	2025-07-02 – —	Unaddressed	No	2026Q3
Lead and Copper Rule / Lead Consumer Notice	2024-12-30 – —	Resolved	No	2026Q3
Stage 1 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP)	2024-10-01 – 2024-12-31	Resolved	No	2026Q3
Public Notice Rule and Revised PN Rule / Public Notification Violation for NPDWR Violation	2023-12-09 – —	Resolved	No	2026Q3
Stage 1 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP)	2022-07-01 – 2022-09-30	Archived	No	2026Q3
Public Notice Rule and Revised PN Rule / Public Notification Violation for NPDWR Violation	2021-09-01 – —	Resolved	No	2026Q3
Public Notice Rule and Revised PN Rule / Public Notification Violation for NPDWR Violation	2021-08-01 – —	Resolved	No	2026Q3
Revised Total Coliform Rule / Monitoring, Routine (RTCR)	2020-08-01 – 2020-08-31	Resolved	No	2026Q3
Revised Total Coliform Rule / Monitoring, Routine (RTCR)	2020-07-01 – 2020-07-31	Resolved	No	2026Q3
Public Notice Rule and Revised PN Rule / Public Notification Violation for NPDWR Violation	2020-06-25 – —	Resolved	No	2026Q3
Consumer Confidence Rule / Consumer Confidence Report Inadequate Reporting	2019-07-01 – —	Resolved	No	2026Q3
Stage 1 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP)	2019-01-01 – 2019-03-31	Resolved	No	2026Q3
Lead and Copper Rule / Lead Consumer Notice	2018-12-30 – —	Resolved	No	2026Q3
Lead and Copper Rule / Follow-up Or Routine LCR Tap M/R	2017-10-01 – —	Resolved	No	2026Q3

Source dates and refresh checks

A refresh check is not a sample date. Publication periods, sample dates and checks are shown separately.

EPA SDWIS lead/copper summaries and service areas — source period: — – —; last checked: 2026-10-17
EPA SDWIS contacts and compliance records — source period: — – —; last checked: 2026-10-17
EPA UCMR 5 sample results — source period: 2023-01-03 – 2026-06-17; last checked: 2026-10-17

Administrative contact (EPA filing)

Bishop, Kenneth: 281-339-1586

An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.

Official state resources · How to read these records