Sonterra MUD

Published drinking-water records and contacts for Sonterra MUD. System TX2460157. Review sources and dates; not a real-time water assessment.

System ID: TX2460157
State or territory: TX
Published population served: 16614
System type (source code): CWS

Published records and dates

PFAS / lithium (EPA UCMR 5): 180 — 2024-04-23 – 2024-10-21
Lead and copper monitoring summaries: 11 — 2008-01-01 – 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	2024-10-21	CR313 West of CR332 / EP002
4:2 FTS	< 0.003 µg/L	0.003 µg/L	2024-10-21	CR313 West of CR332 / EP002
6:2 FTS	< 0.005 µg/L	0.005 µg/L	2024-10-21	320 Limestone Terrace / EP001
8:2 FTS	< 0.005 µg/L	0.005 µg/L	2024-10-21	CR313 West of CR332 / EP002
9Cl-PF3ONS	< 0.002 µg/L	0.002 µg/L	2024-10-21	CR313 West of CR332 / EP002
ADONA	< 0.003 µg/L	0.003 µg/L	2024-10-21	CR313 West of CR332 / EP002
HFPO-DA	< 0.005 µg/L	0.005 µg/L	2024-10-21	Sonterra Blvd. FM IH-35 / EP003
NEtFOSAA	< 0.005 µg/L	0.005 µg/L	2024-10-21	CR313 West of CR332 / EP002
NFDHA	< 0.02 µg/L	0.02 µg/L	2024-10-21	Sonterra Blvd. FM IH-35 / EP003
NMeFOSAA	< 0.006 µg/L	0.006 µg/L	2024-10-21	320 Limestone Terrace / EP001
PFBA	< 0.005 µg/L	0.005 µg/L	2024-10-21	320 Limestone Terrace / EP001
PFBS	0.0041 µg/L	0.003 µg/L	2024-10-21	Sonterra Blvd. FM IH-35 / EP003
PFDA	< 0.003 µg/L	0.003 µg/L	2024-10-21	CR313 West of CR332 / EP002
PFDoA	< 0.003 µg/L	0.003 µg/L	2024-10-21	Sonterra Blvd. FM IH-35 / EP003
PFEESA	< 0.003 µg/L	0.003 µg/L	2024-10-21	Sonterra Blvd. FM IH-35 / EP003
PFHpA	< 0.003 µg/L	0.003 µg/L	2024-10-21	320 Limestone Terrace / EP001
PFHpS	< 0.003 µg/L	0.003 µg/L	2024-10-21	Sonterra Blvd. FM IH-35 / EP003
PFHxA	0.0030 µg/L	0.003 µg/L	2024-10-21	Sonterra Blvd. FM IH-35 / EP003
PFHxS	< 0.003 µg/L	0.003 µg/L	2024-10-21	CR313 West of CR332 / EP002
PFMBA	< 0.003 µg/L	0.003 µg/L	2024-10-21	320 Limestone Terrace / EP001
PFMPA	< 0.004 µg/L	0.004 µg/L	2024-10-21	320 Limestone Terrace / EP001
PFNA	< 0.004 µg/L	0.004 µg/L	2024-10-21	320 Limestone Terrace / EP001
PFOA	< 0.004 µg/L	0.004 µg/L	2024-10-21	Sonterra Blvd. FM IH-35 / EP003
PFOS	< 0.004 µg/L	0.004 µg/L	2024-10-21	CR313 West of CR332 / EP002
PFPeA	0.0065 µg/L	0.003 µg/L	2024-10-21	CR313 West of CR332 / EP002
PFPeS	< 0.004 µg/L	0.004 µg/L	2024-10-21	Sonterra Blvd. FM IH-35 / EP003
PFTA	< 0.008 µg/L	0.008 µg/L	2024-10-21	CR313 West of CR332 / EP002
PFTrDA	< 0.007 µg/L	0.007 µg/L	2024-10-21	CR313 West of CR332 / EP002
PFUnA	< 0.002 µg/L	0.002 µg/L	2024-10-21	320 Limestone Terrace / EP001
lithium	20.4 µg/L	9 µg/L	2024-10-21	CR313 West of CR332 / EP002

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)	0.000431 mg/L	2022-01-01 – 2024-12-31	2026Q3
Lead (PB90)	0.00321 mg/L	2021-07-01 – 2021-12-31	2026Q3
Lead (PB90)	0.00321 mg/L	2021-01-01 – 2021-06-30	2026Q3
Lead (PB90)	0.00339 mg/L	2018-01-01 – 2020-12-31	2026Q3
Lead (PB90)	0.0013 mg/L	2019-01-01 – 2019-06-30	2026Q3
Lead (PB90)	0.00276 mg/L	2018-07-01 – 2018-12-31	2026Q3
Lead (PB90)	0.00463 mg/L	2015-01-01 – 2017-12-31	2026Q3
Lead (PB90)	0.0018 mg/L	2012-01-01 – 2014-12-31	2026Q3

Published compliance history

9 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 / Lead Consumer Notice	2024-12-30 – —	Resolved	No	2026Q3
Public Notice Rule and Revised PN Rule / Public Notification Violation for NPDWR Violation	2024-07-03 – —	Resolved	No	2026Q3
Stage 1 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP)	2024-04-01 – 2024-06-30	Resolved	No	2026Q3
Stage 1 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP)	2023-01-01 – 2023-03-31	Resolved	No	2026Q3
Lead and Copper Rule / Water Quality Parameter M/R	2018-07-01 – 2018-12-31	Resolved	No	2026Q3
Lead and Copper Rule / Water Quality Parameter M/R	2018-07-01 – 2018-12-31	Resolved	No	2026Q3
Lead and Copper Rule / Water Quality Parameter M/R	2018-07-01 – 2018-12-31	Resolved	No	2026Q3
Inorganic Chemicals / Maximum Contaminant Level Violation, Average	2017-04-01 – 2017-06-30	Resolved	Yes	2026Q3
Inorganic Chemicals / Maximum Contaminant Level Violation, Average	2017-01-01 – 2017-03-31	Resolved	Yes	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)

Faske, John: 512-630-6884

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