Short answer: No measured result is above a legal limit; lithium sits above a screening level, and a past health-based violation (Chlorite) is on record. Guthrie serves 9,925 residents.
Your water bill or annual water quality report names your actual supplier.
Also supplies: Cedar Valley
GUTHRIE (EPA PWSID OK1020903) delivers surface water to 9,925 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.
2health-based violations in the last 10 years
From EPA SDWIS. Counted once per contaminant per year, as in the Track record score. All 3 EPA filings are listed below.
Every filing is listed; the Track record score counts at most one per contaminant per year.
Resolved
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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 4.6 µg/L, below the 15 µg/L action level
PFBS 3.8 ng/L, below the 2000 ng/L EPA health advisory (+3 more PFAS detected)
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
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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 Guthrie 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 Guthrie, PFAS were detected below their limits, and PFBA 8.4 ng/L and PFPeA 4.8 ng/L with no federal or state limit; the lead 90th-percentile result was 4.6 µg/L against the 15 µg/L action level; one health-based violation is on record (Chlorite). GUTHRIE (PWSID OK1020903) has a Purity Score of 93/100 (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.
GUTHRIE (PWS ID OK1020903) is the public water system on record for Guthrie, Oklahoma, serving about 9,925 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 (2025-05-19 to 2025-11-03), PFBS was detected at 3.8 ng/L, below the 2,000 ng/L EPA health advisory and PFHxA was detected at 4.4 ng/L, below the 400,000 ng/L state limit. PFBA (8.4 ng/L) and PFPeA (4.8 ng/L) were also detected; they have no federal or state limit.
GUTHRIE's most recent lead 90th-percentile result (2023–2025) was 4.6 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.
The federal SDWIS record lists a health-based violation for GUTHRIE within about the last ten years: Chlorite (2021). The findings above show each one's status.
PurityMap's current record for Guthrie holds 32 findings: 2 above a reference, 3 detected within the reference, 2 detected with no limit and 25 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 |
|---|---|---|---|---|---|
| Chlorite | 1.2 MG/L | 1.0 mg/L | Above the listed reference | 2021 | EPA SDWIS Violations & Enforcement: GUTHRIE (OK1020903) |
| Lithium | 12 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 | 2025-02-10 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| Lead (90th percentile) | 4.6 µg/L | 15 µg/L federal action level | Below the listed reference | 2023–2025 monitoring period | Lead & Copper Rule 90th-percentile: GUTHRIE (OK1020903) |
| Perfluorobutanesulfonic acid (PFBS) | 3.8 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Within the referenced health-based guidance value | 2025-05-19 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| Perfluorohexanoic acid (PFHxA) | 4.4 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2025-05-19 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| Perfluorobutanoic acid (PFBA) | 8.4 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2025-05-19 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| Perfluoropentanoic acid (PFPeA) | 4.8 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2025-05-19 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| 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 | 2025-05-19 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| 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 | 2025-05-19 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| 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 | 2025-05-19 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| 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 | 2025-05-19 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-19 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| 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 | 2025-05-19 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-05-19 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-25 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-25 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-19 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-19 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-19 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-19 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-19 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-19 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-19 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-19 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-05-19 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-05-19 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-05-19 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-05-19 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-19 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-25 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-25 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-05-19 to 2025-11-03 | UCMR5 Analytical Results: GUTHRIE (OK1020903) |
Perfluorobutanesulfonic acid (PFBS)
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)
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: GUTHRIE (OK1020903)
US EPA
State SDWIS Compliance Record
Lead & Copper Rule 90th-percentile: GUTHRIE (OK1020903)
US EPA SDWIS
State SDWIS Compliance Record
EPA SDWIS Violations & Enforcement: GUTHRIE (OK1020903)
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 Guthrie reported something related, it's shown below.
Lead at Guthrie: 4.6 µg/L (90th percentile, 2023–2025 monitoring period). 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.