No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting July 2020.
Serves about 5,072 people (2,140 connections) with surface water from its own intake.
From EPA's record for TN0000471. PurityMap is independent of Monterey Water Dept.
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3 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Jul–Sep 2020 | Total trihalomethanes (TTHM) | 0.082 mg/L | 0.080 mg/L | Resolved |
| Apr–Jun 2020 | Total trihalomethanes (TTHM) | 0.0805 mg/L | 0.080 mg/L | Resolved |
| Jan–Mar 2020 | Total trihalomethanes (TTHM) | 0.0838 mg/L | 0.080 mg/L | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from February 2024 to November 2024.
| Contaminant | Result | Limit | 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 | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| 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 | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| 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 | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| 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 | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| 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 | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| 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 | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| 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 | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-20 to 2024-11-11 | UCMR5 Analytical Results: MONTEREY WATER DEPT (TN0000471) |
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.
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Follow this water →Monterey Water Dept's phone number on EPA record is 931-839-3770. Its mailing address is P.O. BOX 97, MONTEREY, TN 38574.
According to EPA's record, Monterey Water Dept uses surface water from its own intake.
EPA's record shows 3 health-based violations for Monterey Water Dept in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. The latest legal-limit breach on record was in the period starting July 2020. EPA also lists 1 missed or late test or report in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Monterey Water Dept'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 Monterey Water Dept. Its phone number on EPA record is 931-839-3770. Its mailing address on EPA record is P.O. BOX 97, MONTEREY, TN 38574. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.