Short answer: No measured result is above a legal limit. Coweta PWA serves 9,450 residents.
Your water bill or annual water quality report names your actual supplier.
COWETA PWA (EPA PWSID OK1021509) delivers surface water to 9,450 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.
12health-based violations in the last 10 years
From EPA SDWIS. Counted once per contaminant per year, as in the Track record score. All 42 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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Plumbing inside a home can add lead that the system record can't show. A tap test tells you what reaches your glass.
lead 6 µg/L, below the 15 µg/L action level
PFHxS 5.5 ng/L, below the 10 ng/L limit (+3 more PFAS detected)
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
Safe Home (EnviroTestKits)
Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb
What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.
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 Coweta 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.
PurityMap does not give a safe/unsafe verdict; it shows what the public records measured. For Coweta, PFAS were detected below their limits, and PFBA 6.9 ng/L and PFPeA 3.3 ng/L with no federal or state limit; the lead 90th-percentile result was 6 µg/L against the 15 µg/L action level. COWETA PWA (PWSID OK1021509) has a Purity Score of 69/100 (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.
COWETA PWA (PWS ID OK1021509) is the public water system on record for Coweta, Oklahoma, serving about 9,450 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 (2023-08-16 to 2024-10-28), PFHxA was detected at 4.2 ng/L, below the 400,000 ng/L state limit and PFHxS was detected at 5.5 ng/L, below the 10 ng/L federal limit. PFBA (6.9 ng/L) and PFPeA (3.3 ng/L) were also detected; they have no federal or state limit.
COWETA PWA's most recent lead 90th-percentile result (2026) was 6 µg/L, below the 15 µg/L action level. That figure comes from sampled homes; lead usually enters from a building's own pipes and fixtures, so only a test at your tap tells you what you drink.
PurityMap's current record for Coweta holds 31 findings: 3 detected within the reference, 2 detected with no limit and 26 not detected. Each finding links to its dated public record; a parameter that was never monitored is shown as pending, not as a pass.
Follow Coweta's water
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| Contaminant | Result | Benchmark | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorohexanesulfonic acid (PFHxS) | 5.5 ng/L | 10 ng/L federal MCL (2024) | Within a historical reference; current applicability unverified | 2023-08-16 to 2024-10-28 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| Lead (90th percentile) | 6 µg/L | 15 µg/L federal action level | Below the listed reference | 2026–2026 monitoring period (still open) | Lead & Copper Rule 90th-percentile: COWETA PWA (OK1021509) |
| Perfluorohexanoic acid (PFHxA) | 4.2 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2023-08-16 to 2024-10-28 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| Perfluorobutanoic acid (PFBA) | 6.9 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-08-16 to 2024-10-28 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| Perfluoropentanoic acid (PFPeA) | 3.3 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-08-16 to 2024-10-28 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| 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 | 2023-08-16 to 2024-10-28 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| 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 | 2023-08-16 to 2024-10-28 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| 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 | 2023-08-16 to 2024-10-28 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| 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 | 2023-08-16 to 2024-10-28 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-16 to 2024-10-28 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| 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 | 2023-08-16 to 2024-10-28 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-08-16 to 2024-10-28 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| Lithium | < 9 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2023-03-13 to 2023-12-06 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-13 to 2023-12-06 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-13 to 2023-12-06 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-16 to 2024-10-28 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-16 to 2024-10-28 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-16 to 2024-10-28 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-16 to 2024-10-28 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| 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 | 2023-08-16 to 2024-10-28 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-16 to 2024-10-28 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-16 to 2024-10-28 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-16 to 2024-10-28 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-16 to 2024-10-28 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-08-16 to 2024-10-28 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-08-16 to 2024-10-28 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-08-16 to 2024-10-28 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-16 to 2024-10-28 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-13 to 2023-12-06 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-13 to 2023-12-06 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-08-16 to 2024-10-28 | UCMR5 Analytical Results: COWETA PWA (OK1021509) |
Perfluorohexanesulfonic acid (PFHxS)
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)
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: COWETA PWA (OK1021509)
US EPA
State SDWIS Compliance Record
Lead & Copper Rule 90th-percentile: COWETA PWA (OK1021509)
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 Coweta PWA reported something related, it's shown below.
Lead at Coweta PWA: 6 µg/L (90th percentile, 2026 monitoring period (still open)). Lead has no taste, so a taste neither shows nor rules it out.
A ZIP code is a postal area, not a water service area. Your water bill names your supplier.