- EPA's UCMR 5 testing looked for 30 contaminants here and found 9.
- Lithium: found in 2 of 20 samples, average 1.17 µg/L, highest 12.1 µg/L (EPA UCMR 5 testing, May 2024–Feb 2025)
- PFBA (a PFAS): found in 18 of 20 samples, average 7 ppt, highest 12.2 ppt (EPA UCMR 5 testing, May 2024–Feb 2025)
- PFOS (a PFAS): found in 5 of 20 samples, average 5 ppt, highest 82 ppt (EPA UCMR 5 testing, May 2024–Feb 2025) PFOA or PFOS averaged above 4.0 ppt in UCMR 5 testing
- PFPeA (a PFAS): found in 12 of 20 samples, average 3.6 ppt, highest 11.7 ppt (EPA UCMR 5 testing, May 2024–Feb 2025)
- PFHxA (a PFAS): found in 12 of 20 samples, average 3.4 ppt, highest 11.5 ppt (EPA UCMR 5 testing, May 2024–Feb 2025)
- PFBS (a PFAS): found in 9 of 20 samples, average 1.7 ppt, highest 5.1 ppt (EPA UCMR 5 testing, May 2024–Feb 2025)
- PFOA (a PFAS): found in 2 of 20 samples, average 0.50 ppt, highest 4.9 ppt (EPA UCMR 5 testing, May 2024–Feb 2025)
- PFHpA (a PFAS): found in 2 of 20 samples, average 0.40 ppt, highest 3.6 ppt (EPA UCMR 5 testing, May 2024–Feb 2025)
- PFHxS (a PFAS): found in 1 of 20 samples, average 0.20 ppt, highest 3.3 ppt (EPA UCMR 5 testing, May 2024–Feb 2025)
- Lead, 90th percentile: 1.2 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, 2022–Dec 31, 2024). The 90th percentile is a system-wide measure from homes sampled under EPA's lead rule; it isn't a result for your home.
Public EPA test results
Can you drink Grand Prairie tap water? What EPA records show
EPA TX0570048 · serves Dallas County, TX · about 201,843 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 Grand Prairie (EPA TX0570048)
EPA data as of October 14, 2026. For Grand Prairie's main utility, City of Grand Prairie: We found no health-based violations in EPA's records for this system (TX0570048) since July 1, 2021, as of October 14, 2026. This water system averaged above 4.0 ppt for PFOA or PFOS in EPA's UCMR 5 testing.
What EPA records show for City of Grand Prairie, as of October 14, 2026
We found no health-based violations in EPA's records for this system (TX0570048) since July 1, 2021, as of October 14, 2026.
Source: EPA ECHO record for City of Grand Prairie (SDWIS). Data as of October 14, 2026.
Lead, 90th percentile: 1.2 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, 2022–Dec 31, 2024). The 90th percentile is a system-wide measure from homes sampled under EPA's lead rule; it isn't a result for your home.
This water system averaged above 4.0 ppt for PFOA or PFOS in EPA's UCMR 5 testing.
EPA's UCMR 5 testing looked for 30 contaminants here and found 9.
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 Grand Prairie use chloramine?
EPA treatment records (state-reported) list chloramines for City of Grand Prairie. EPA record