Short answer: No measured result is above a legal limit; lithium sits above a screening level. City of La Grulla serves 11,250 residents.
Your water bill or annual water quality report names your actual supplier.
CITY OF LA GRULLA (EPA PWSID TX2140006) delivers surface water to 11,250 residents. This report reflects 29 individual PFAS result(s) from the source UCMR5 observations and the latest Lead & Copper Rule 90th-percentile result. Water hardness and disinfectant type are pending the utility's own annual report.
9health-based violations in the last 10 years
From EPA SDWIS. Counted once per contaminant per year, as in the Track record score. All 13 EPA filings are listed below.
No result is not a pass. Your utility's annual water quality report may list them, and a certified lab test covers your own tap.
Every filing is listed; the Track record score counts at most one per contaminant per year.
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A tap test can confirm levels at your home before you choose treatment.
PFHxA 5.4 ng/L, below the 400000 ng/L state limit (+2 more PFAS detected)
Lithium 50.5 µg/L, above the 10.0 µg/L EPA health reference level
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
As an Amazon Associate, PurityMap earns from qualifying purchases. Affiliate disclosure.
Screening: quick check, not lab-grade
Silver Lake Research
Lead, bacteria, nitrate, copper, iron, chlorine, hardness and pH
What it can't tell you: Each test gives a yes/no or a rough range, not a lab number, and it cannot detect PFAS or arsenic.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.
When your results arrive, read them here →
Each card names which La Grulla findings its current certification covers, and which it doesn't.
As an Amazon Associate, PurityMap earns from qualifying purchases. A product appears here only when a current certification record covers at least one identified concern; every concern stays listed. The retail offer is looked up afterwards and never changes which products appear or their order. Affiliate disclosure.
No product in our catalogue has verified certification for these concerns yet.
PurityMap does not give a safe/unsafe verdict; it shows what the public records measured. For La Grulla, PFAS were detected below their limits, and PFBA 11 ng/L and PFPeA 5.8 ng/L with no federal or state limit. CITY OF LA GRULLA (PWSID TX2140006) has a Purity Score of 74/100 (confidence: moderate), assessed at the water-system level and computed only from contaminants that were measured. Water can change in your own pipes, so a certified test is the only way to know what comes out of your tap.
CITY OF LA GRULLA (PWS ID TX2140006) is the public water system on record for La Grulla, Texas, serving about 11,250 people. Confirm the utility on your water bill before acting on a specific finding.
Surface water (primary source of record in EPA SDWIS).
In EPA's UCMR 5 testing (2025-11-17 to 2026-01-06), PFHxA was detected at 5.4 ng/L, below the 400,000 ng/L state limit. PFBA (11 ng/L) and PFPeA (5.8 ng/L) were also detected; they have no federal or state limit.
Lead is not in La Grulla's current published record. Lead usually enters from a building's own pipes and fixtures, so a certified home test is the way to know yours.
PurityMap's current record for La Grulla holds 31 findings: 1 above a reference, 1 detected within the reference, 2 detected with no limit and 27 not detected. Each finding links to its dated public record; a parameter that was never monitored is shown as pending, not as a pass.
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| Contaminant | Result | Benchmark | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 50.5 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Above the referenced health-based guidance value | 2025-03-17 to 2025-12-17 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| Perfluorohexanoic acid (PFHxA) | 5.4 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2025-11-17 to 2026-01-06 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| Perfluorobutanoic acid (PFBA) | 11 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2025-11-17 to 2026-01-06 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| Perfluoropentanoic acid (PFPeA) | 5.8 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2025-11-17 to 2026-01-06 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| Contaminant | Result | Benchmark | Status | Sampled | Source |
|---|---|---|---|---|---|
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-11-17 to 2026-01-06 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-11-17 to 2026-01-06 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-11-17 to 2026-01-06 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-11-17 to 2026-01-06 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-11-17 to 2026-01-06 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-11-17 to 2026-01-06 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-11-17 to 2026-01-06 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| Lead (90th percentile) | Non-Detect (ND) | 15 µg/L federal action level | Not detected above the reporting limit | 2025–2025 monitoring period | Lead & Copper Rule 90th-percentile: CITY OF LA GRULLA (TX2140006) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-06 to 2025-12-17 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-06 to 2025-12-17 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-11-17 to 2026-01-06 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-11-17 to 2026-01-06 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-11-17 to 2026-01-06 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-11-17 to 2026-01-06 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| Perfluorobutanesulfonic acid (PFBS) | < 3 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2025-11-17 to 2026-01-06 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-11-17 to 2026-01-06 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-11-17 to 2026-01-06 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-11-17 to 2026-01-06 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-11-17 to 2026-01-06 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-11-17 to 2026-01-06 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-11-17 to 2026-01-06 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-11-17 to 2026-01-06 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-11-17 to 2026-01-06 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-11-17 to 2026-01-06 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-06 to 2025-12-17 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-06 to 2025-12-17 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-11-17 to 2026-01-06 | UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006) |
Perfluorohexanoic acid (PFHxA)
Perfluoropentanoic acid (PFPeA)
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)
Perfluoro-3-methoxypropanoic acid (PFMPA)
Perfluoro-4-methoxybutanoic acid (PFMBA)
Perfluorobutanesulfonic acid (PFBS)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexanesulfonic acid (PFHxS)
Perfluorooctanesulfonic acid (PFOS)
Perfluoropentanesulfonic acid (PFPeS)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUnA)
Every value is the published result from the cited public record. A reporting limit is the lowest level the method could reliably quantify; a non-detect is not a guarantee of zero.
UCMR5 Analytical Results
UCMR5 Analytical Results: CITY OF LA GRULLA (TX2140006)
US EPA
State SDWIS Compliance Record
Lead & Copper Rule 90th-percentile: CITY OF LA GRULLA (TX2140006)
US EPA SDWIS
Methodology: how we analyze water. Prepared with AI assistance and reviewed by the PurityMap Editorial Team before publication.
Start with the hot-or-cold tap check. Where City of La Grulla reported something related, it's shown below.
Lead at City of La Grulla: not detected (90th percentile, 2025 monitoring period). Lead has no taste, so a taste neither shows nor rules it out.