Which utility supplies water in Lewisville?

City of Lewisville is the main utility for Lewisville in EPA's records (EPA TX0610004), serving about 140,880 people (EPA SDWIS). Your water bill names your utility.

Does Lewisville tap water contain PFAS?

PFOA and PFOS were not detected at or above EPA's reporting level in EPA's UCMR 5 testing. This is public data, not a test of your tap.

How recent is this data?

Source: EPA records (SDWIS, UCMR 5). SDWIS: data as of Oct 14, 2026. EPA UCMR 5 data, samples through June 2026. Data may be one to three years old and may not reflect the water at your tap. If you want your own tap tested, use a state-certified laboratory.

Public EPA test results

Can you drink Lewisville tap water? What EPA records show

Q: Is Lewisville tap water safe to drink?

We don't give a safe or unsafe verdict. Here is what the public data shows: EPA records for Lewisville's main utility, City of Lewisville, as of October 14, 2026. We found no health-based violations in EPA's records for this system (TX0610004) since July 1, 2021, as of October 14, 2026. PFOA and PFOS were not detected at or above EPA's reporting level in EPA's UCMR 5 testing. A guideline and a legal limit are different things, and this is public data, not a test of your tap.

EPA TX0610004 · serves Denton County, TX · about 140,880 people (EPA SDWIS)

This report shows EPA's federal records for this water system: UCMR 5 testing, lead testing and violations. It isn't a test of the water at your tap, and it has no Water Score.

Public EPA test results

City of Lewisville (EPA TX0610004)

EPA data as of October 14, 2026. For Lewisville's main utility, City of Lewisville: We found no health-based violations in EPA's records for this system (TX0610004) since July 1, 2021, as of October 14, 2026. PFOA and PFOS were not detected at or above EPA's reporting level in EPA's UCMR 5 testing.

What EPA records show for City of Lewisville, as of October 14, 2026

We found no health-based violations in EPA's records for this system (TX0610004) since July 1, 2021, as of October 14, 2026.

Source: EPA ECHO record for City of Lewisville (SDWIS). Data as of October 14, 2026.

Lead, 90th percentile: 1.48 ppb at the latest result in EPA records for a monitoring period that ran on or after July 1, 2021, at or below EPA's 15 ppb action level (EPA SDWIS, monitoring period Jan 1, 2026–Dec 31, 2026). The 90th percentile is a system-wide measure from homes sampled under EPA's lead rule; it isn't a result for your home.

EPA's UCMR 5 testing looked for 30 contaminants here and found 4.

PFOA and PFOS were not detected at or above EPA's reporting level in EPA's UCMR 5 testing.

Source: EPA records (SDWIS, UCMR 5). SDWIS: data as of Oct 14, 2026. EPA UCMR 5 data, samples through June 2026.

Your water bill names your utility.

Does City of Lewisville use chloramine?

EPA treatment records (state-reported) list chloramines for City of Lewisville. EPA record

Systems whose EPA records list chloramines

Can you drink Lewisville tap water? What EPA records show

What EPA records show for City of Lewisville, as of October 14, 2026

Does City of Lewisville use chloramine?

What EPA records show for this system

Sources

Questions people ask

Is Lewisville tap water safe to drink?

Which utility supplies water in Lewisville?

Does Lewisville tap water contain PFAS?

How recent is this data?

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