Short answer: No measured result is above a legal limit; lithium sits above a screening level. Ames Water Treatment Plant serves 55,177 residents.
This report uses the largest, AMES WATER TREATMENT PLANT. Your water bill or annual water quality report names your actual supplier.
Source: EPA SDWIS 2026Q2.
AMES WATER TREATMENT PLANT (EPA PWSID IA8503039) delivers groundwater to 55,177 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.
0health-based violations in the last 10 years
From EPA SDWIS. A clean violation history means no enforcement action was recorded; it does not cover contaminants without a limit.
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.
The records describe the system. A certified lab test shows what reaches your glass.
Lithium 26 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.
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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 Ames findings its current certification covers, and which it doesn't.
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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 Ames, no regulated PFAS were detected in EPA's 2024 testing. AMES WATER TREATMENT PLANT (PWSID IA8503039) has a Purity Score of 100/100 (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.
AMES WATER TREATMENT PLANT (PWS ID IA8503039) is the public water system on record for Ames, Iowa, serving about 55,177 people. Confirm the utility on your water bill before acting on a specific finding.
Groundwater (primary source of record in EPA SDWIS).
None of the 29 PFAS in EPA's UCMR 5 testing (2024-12-02 to 2025-06-24) was detected. "Not detected" means below the lab's reporting limit, not proven zero.
Lead is not in Ames'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 Ames holds 31 findings: 1 above a reference and 30 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 | 26 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 | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| 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 | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| 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 | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| 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 | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| 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 | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| 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 | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| Lead (90th percentile) | Non-Detect (ND) | 15 µg/L federal action level | Not detected above the reporting limit | 2023–2025 monitoring period | Lead & Copper Rule 90th-percentile: AMES WATER TREATMENT PLANT (IA8503039) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-12-02 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-12-02 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| 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 | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-12-02 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-12-02 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-12-02 to 2025-06-24 | UCMR5 Analytical Results: AMES WATER TREATMENT PLANT (IA8503039) |
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)
Perfluorohexanoic acid (PFHxA)
Perfluorooctanesulfonic acid (PFOS)
Perfluoropentanesulfonic acid (PFPeS)
Perfluoropentanoic acid (PFPeA)
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: AMES WATER TREATMENT PLANT (IA8503039)
US EPA
State SDWIS Compliance Record
Lead & Copper Rule 90th-percentile: AMES WATER TREATMENT PLANT (IA8503039)
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 Ames Water Treatment Plant reported something related, it's shown below.
Lead at Ames Water Treatment Plant: not detected (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.