No health-based violations on EPA record since 2016.
Serves about 4,450 people (2,186 connections) with groundwater from its own wells.
From EPA's record for MT0000181. PurityMap is independent of City of Columbia Falls.
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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 April 2023 to December 2023.
| 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 | 2023-04-10 to 2023-12-19 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| 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 | 2023-04-10 to 2023-12-19 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| 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 | 2023-04-10 to 2023-12-19 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| 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 | 2023-04-10 to 2023-12-19 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-12-19 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| 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 | 2023-04-10 to 2023-12-19 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-10 to 2023-12-19 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| 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 | 2023-04-10 to 2023-10-16 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-10-16 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-10-16 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-12-19 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-12-19 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-12-19 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-12-19 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| 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 | 2023-04-10 to 2023-12-19 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-12-19 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-12-19 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-12-19 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-12-19 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-12-19 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-10 to 2023-12-19 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-04-10 to 2023-12-19 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-10 to 2023-12-19 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-10 to 2023-12-19 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-10 to 2023-12-19 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-12-19 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-12-19 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-10-16 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-10-16 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-10 to 2023-12-19 | UCMR5 Analytical Results: COLUMBIA FALLS CITY OF (MT0000181) |
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 →City of Columbia Falls's phone number on EPA record is 406-892-4388. Its mailing address is 130 6TH STREET WEST, COLUMBIA FALLS, MT 59912.
According to EPA's record, City of Columbia Falls uses groundwater from its own wells.
No health-based violations on EPA record since 2016. EPA also lists 24 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in City of Columbia Falls's latest lead and copper round, which ended in December 2024, was 4 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for City of Columbia Falls. Its phone number on EPA record is 406-892-4388. Its mailing address on EPA record is 130 6TH STREET WEST, COLUMBIA FALLS, MT 59912. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.