POLSON, MT · Lake County
FERNDALE MOBILE CT FERNDALE Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of December 3, 2003. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.
If you are a resident looking for your current water provider, see water systems in Lake County, MT.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Montana’s official records. Always confirm current status with Montana before making decisions based on this information.
System facts
- System ID (PWSID)
- MT0000624
- System type
- Community Water System
- Population served
- 30
- Service connections
- 15
- Ownership
- privately owned
- Water source
- groundwater (wells)
FERNDALE MOBILE CT FERNDALE is one of 1,084 community water systems in Montana in the 500 or fewer people size category, formerly serving 30 people from groundwater.
EPA's federal records list this system as inactive in 2003; the record below is historical.
As of August 1, 2026, its federal record holds 28 entries between 1995 and 2003, all of which EPA lists as closed. Nothing has been added since 2003.
All 28 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves synthetic organic chemicals, inorganic chemicals, and the Total Coliform Rules.
Violation history
Follow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
October 1, 2003 – December 3, 2003
ArchivedMonitoring, Regular
—Chromium
January 1, 2002 – December 3, 2003
ResolvedMonitoring, Regular
—Fluoride
January 1, 2002 – December 3, 2003
ResolvedMonitoring, Regular
—Mercury
January 1, 2002 – December 3, 2003
ResolvedMonitoring, Regular
—Endrin
January 1, 2002 – December 3, 2003
ResolvedMonitoring, Regular
—BHC-GAMMA
January 1, 2002 – December 3, 2003
ResolvedMonitoring, Regular
—Methoxychlor
January 1, 2002 – December 3, 2003
ResolvedMonitoring, Regular
—Toxaphene
January 1, 2002 – December 3, 2003
ResolvedMonitoring, Regular
—Dalapon
January 1, 2002 – December 3, 2003
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
January 1, 2002 – December 3, 2003
ResolvedMonitoring, Regular
—Simazine
January 1, 2002 – December 3, 2003
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
January 1, 2002 – December 3, 2003
ResolvedMonitoring, Regular
—Picloram
January 1, 2002 – December 3, 2003
ResolvedMonitoring, Regular
—Carbofuran
January 1, 2002 – December 3, 2003
ResolvedMonitoring, Regular
—Aldicarb
January 1, 2002 – December 3, 2003
ResolvedMonitoring, Regular
—LASSO
January 1, 2002 – December 3, 2003
ResolvedMonitoring, Regular
—Heptachlor
January 1, 2002 – December 3, 2003
ResolvedMonitoring, Regular
—Heptachlor epoxide
January 1, 2002 – December 3, 2003
ResolvedMonitoring, Regular
—2,4-D
January 1, 2002 – December 3, 2003
ResolvedMonitoring, Regular
—2,4,5-TP
January 1, 2002 – December 3, 2003
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 2002 – December 3, 2003
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
January 1, 2002 – December 3, 2003
ResolvedMonitoring, Regular
—Barium
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
January 1, 1996 – January 31, 1996
ArchivedMonitoring, Regular
—Fluoride
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Chromium
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Cadmium
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
July 1, 1995 – July 31, 1995
Archived
Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 1, 2003 – December 3, 2003 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Archived |
| January 1, 2002 – December 3, 2003 | Monitoring, Regular | Chromium | — | Resolved |
| January 1, 2002 – December 3, 2003 | Monitoring, Regular | Fluoride | — | Resolved |
| January 1, 2002 – December 3, 2003 | Monitoring, Regular | Mercury | — | Resolved |
| January 1, 2002 – December 3, 2003 | Monitoring, Regular | Endrin | — | Resolved |
| January 1, 2002 – December 3, 2003 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| January 1, 2002 – December 3, 2003 | Monitoring, Regular | Methoxychlor | — | Resolved |
| January 1, 2002 – December 3, 2003 | Monitoring, Regular | Toxaphene | — | Resolved |
| January 1, 2002 – December 3, 2003 | Monitoring, Regular | Dalapon | — | Resolved |
| January 1, 2002 – December 3, 2003 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| January 1, 2002 – December 3, 2003 | Monitoring, Regular | Simazine | — | Resolved |
| January 1, 2002 – December 3, 2003 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| January 1, 2002 – December 3, 2003 | Monitoring, Regular | Picloram | — | Resolved |
| January 1, 2002 – December 3, 2003 | Monitoring, Regular | Carbofuran | — | Resolved |
| January 1, 2002 – December 3, 2003 | Monitoring, Regular | Aldicarb | — | Resolved |
| January 1, 2002 – December 3, 2003 | Monitoring, Regular | LASSO | — | Resolved |
| January 1, 2002 – December 3, 2003 | Monitoring, Regular | Heptachlor | — | Resolved |
| January 1, 2002 – December 3, 2003 | Monitoring, Regular | Heptachlor epoxide | — | Resolved |
| January 1, 2002 – December 3, 2003 | Monitoring, Regular | 2,4-D | — | Resolved |
| January 1, 2002 – December 3, 2003 | Monitoring, Regular | 2,4,5-TP | — | Resolved |
| January 1, 2002 – December 3, 2003 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| January 1, 2002 – December 3, 2003 | Monitoring, Regular | HEXACHLOROBENZENE | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Barium | — | Resolved |
| January 1, 1996 – January 31, 1996 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Fluoride | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Chromium | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Cadmium | — | Resolved |
| July 1, 1995 – July 31, 1995 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state
Enforcement actions
- January 4, 2005State Violation/Reminder Notice1 linked violation
- January 4, 2005State Public Notification requested1 linked violation
- September 21, 2004State Compliance achieved36 linked violations
- December 18, 2003State Compliance achieved1 linked violation
- December 18, 2003State Compliance achieved6 linked violations
- July 25, 2002State Violation/Reminder Notice2 linked violations
- August 31, 1995State Violation/Reminder Notice3 linked violations
Last known contact on file (system is inactive)
Not on record
406-883-4526
POLSON, MT 598600741