No health-based violations on EPA record since 2016.
Serves about 13,000 people (4,999 connections) with groundwater from its own wells.
From EPA's record for MO2010519. PurityMap is independent of MO American Mexico.
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No health-based violations in the last 10 years, from EPA's SDWIS compliance database.
EPA required this system to test for 30 unregulated and emerging contaminants, from February 2024 to August 2024.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 146 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 | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| 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 | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| 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 | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| 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 | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| 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 | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| 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 | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| 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 | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-07 to 2024-08-12 | UCMR5 Analytical Results: MO AMERICAN MEXICO (MO2010519) |
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
Turnaround: 5 minutes
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
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 2–4 business days after the lab receives it
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.
Get PurityMap updates about this water system.
Follow this water →MO American Mexico's phone number on EPA record is 636-263-7370. Its mailing address is 1290 MOTHERHEAD RD, COTTLEVILLE, MO 63141-0000.
According to EPA's record, MO American Mexico uses groundwater from its own wells.
No health-based violations on EPA record since 2016. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in MO American Mexico's latest lead and copper round, which ended in December 2025, was 1 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for MO American Mexico. Its phone number on EPA record is 636-263-7370. Its mailing address on EPA record is 1290 MOTHERHEAD RD, COTTLEVILLE, MO 63141-0000. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.