Williamson County Wsid 3

Published drinking-water records and contacts for Williamson County Wsid 3. System TX2460152. Review sources and dates; not a real-time water assessment.

System ID: TX2460152
State or territory: TX
Published population served: 8265
System type (source code): CWS

Published records and dates

PFAS / lithium (EPA UCMR 5): 60 — 2025-02-17 – 2025-08-18
Lead and copper monitoring summaries: 7 — 2011-01-01 – 2026-12-31

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	2025-08-18	Connection to Manville / EP001
4:2 FTS	< 0.003 µg/L	0.003 µg/L	2025-08-18	Connection to Manville / EP001
6:2 FTS	< 0.005 µg/L	0.005 µg/L	2025-08-18	Connection to Manville / EP001
8:2 FTS	< 0.005 µg/L	0.005 µg/L	2025-08-18	Connection to Manville / EP001
9Cl-PF3ONS	< 0.002 µg/L	0.002 µg/L	2025-08-18	Connection to Manville / EP001
ADONA	< 0.003 µg/L	0.003 µg/L	2025-08-18	Connection to Manville / EP001
HFPO-DA	< 0.005 µg/L	0.005 µg/L	2025-08-18	Connection to Manville / EP001
NEtFOSAA	< 0.005 µg/L	0.005 µg/L	2025-08-18	Connection to Manville / EP001
NFDHA	< 0.02 µg/L	0.02 µg/L	2025-08-18	Connection to Manville / EP001
NMeFOSAA	< 0.006 µg/L	0.006 µg/L	2025-08-18	Connection to Manville / EP001
PFBA	< 0.005 µg/L	0.005 µg/L	2025-08-18	Connection to Manville / EP001
PFBS	0.0035 µg/L	0.003 µg/L	2025-08-18	Connection to Manville / EP001
PFDA	< 0.003 µg/L	0.003 µg/L	2025-08-18	Connection to Manville / EP001
PFDoA	< 0.003 µg/L	0.003 µg/L	2025-08-18	Connection to Manville / EP001
PFEESA	< 0.003 µg/L	0.003 µg/L	2025-08-18	Connection to Manville / EP001
PFHpA	< 0.003 µg/L	0.003 µg/L	2025-08-18	Connection to Manville / EP001
PFHpS	< 0.003 µg/L	0.003 µg/L	2025-08-18	Connection to Manville / EP001
PFHxA	< 0.003 µg/L	0.003 µg/L	2025-08-18	Connection to Manville / EP001
PFHxS	< 0.003 µg/L	0.003 µg/L	2025-08-18	Connection to Manville / EP001
PFMBA	< 0.003 µg/L	0.003 µg/L	2025-08-18	Connection to Manville / EP001
PFMPA	< 0.004 µg/L	0.004 µg/L	2025-08-18	Connection to Manville / EP001
PFNA	0.0050 µg/L	0.004 µg/L	2025-08-18	Connection to Manville / EP001
PFOA	< 0.004 µg/L	0.004 µg/L	2025-08-18	Connection to Manville / EP001
PFOS	< 0.004 µg/L	0.004 µg/L	2025-08-18	Connection to Manville / EP001
PFPeA	0.0031 µg/L	0.003 µg/L	2025-08-18	Connection to Manville / EP001
PFPeS	< 0.004 µg/L	0.004 µg/L	2025-08-18	Connection to Manville / EP001
PFTA	< 0.008 µg/L	0.008 µg/L	2025-08-18	Connection to Manville / EP001
PFTrDA	< 0.007 µg/L	0.007 µg/L	2025-08-18	Connection to Manville / EP001
PFUnA	< 0.002 µg/L	0.002 µg/L	2025-08-18	Connection to Manville / EP001
lithium	35.5 µg/L	9 µg/L	2025-08-18	Connection to Manville / EP001

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)	0.00145 mg/L	2024-01-01 – 2026-12-31	2026Q3
Lead (PB90)	0.000498 mg/L	2021-01-01 – 2023-12-31	2026Q3
Lead (PB90)	0.00111 mg/L	2018-01-01 – 2020-12-31	2026Q3
Lead (PB90)	0.00173 mg/L	2015-01-01 – 2017-12-31	2026Q3
Lead (PB90)	0.002 mg/L	2012-01-01 – 2014-12-31	2026Q3
Lead (PB90)	0.00221 mg/L	2011-07-01 – 2011-12-31	2026Q3
Lead (PB90)	0.00262 mg/L	2011-01-01 – 2011-06-30	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
Stage 1 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP)	2024-04-01 – 2024-06-30	Resolved	No	2026Q3
Public Notice Rule and Revised PN Rule / Public Notification Violation for NPDWR Violation	2020-07-01 – —	Resolved	No	2026Q3
Public Notice Rule and Revised PN Rule / Public Notification Violation for NPDWR Violation	2020-06-01 – —	Resolved	No	2026Q3
Public Notice Rule and Revised PN Rule / Public Notification Violation for NPDWR Violation	2020-05-01 – —	Resolved	No	2026Q3
Revised Total Coliform Rule / Monitoring, Routine (RTCR)	2019-06-01 – 2019-06-30	Resolved	No	2026Q3
Revised Total Coliform Rule / Monitoring, Routine (RTCR)	2019-05-01 – 2019-05-31	Resolved	No	2026Q3
Revised Total Coliform Rule / Monitoring, Routine (RTCR)	2019-04-01 – 2019-04-30	Resolved	No	2026Q3
Revised Total Coliform Rule / Monitoring, Routine (RTCR)	2019-03-01 – 2019-03-31	Resolved	No	2026Q3
Revised Total Coliform Rule / Monitoring, Routine (RTCR)	2019-02-01 – 2019-02-28	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)

Richter, Rance: 512-432-2300

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