No health-based violations on EPA record since 2016.
Serves about 147,340 people (47,953 connections) with groundwater from its own wells.
From EPA's record for ID4010097. PurityMap is independent of Meridian Water Dept.
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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 September 2024 to September 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 99.5 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 | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| Perfluorooctanesulfonic acid (PFOS) | 4.9 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| Perfluorohexanesulfonic acid (PFHxS) | 3.8 ng/L | 10 ng/L federal MCL (2024) | Within a historical reference; current applicability unverified | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| 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 | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| 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 | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| 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 | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| 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 | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| 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 | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| 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 | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-09-10 to 2025-09-24 | UCMR5 Analytical Results: MERIDIAN WATER DEPT (ID4010097) |
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 →Meridian Water Dept's phone number on EPA record is 208-985-1200. Its mailing address is 2235 NW 8TH ST, MERIDIAN, ID 83646.
According to EPA's record, Meridian Water Dept 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 Meridian Water Dept's latest lead and copper round, which ended in June 2026, was 3.9 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Meridian Water Dept. Its phone number on EPA record is 208-985-1200. Its mailing address on EPA record is 2235 NW 8TH ST, MERIDIAN, ID 83646. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.