LOCKWOOD, MT · Dawson County
SHADY HAVENS LLC Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of May 10, 2013. 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 Dawson County, MT.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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)
- MT0000412
- System type
- Community Water System
- Population served
- 24
- Service connections
- 11
- Ownership
- privately owned
- Water source
- groundwater (wells)
Violation history
Follow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
October 1, 2003 – May 10, 2013
ResolvedMonitoring, Regular
—Nitrate-Nitrite
January 1, 2003 – December 31, 2003
ResolvedMonitoring, Regular
—Barium
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Cadmium
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Chromium
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Fluoride
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Mercury
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Nickel
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Antimony, Total
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Beryllium, Total
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Thallium, Total
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Chlordane
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Arsenic
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Heptachlor
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—2,4,5-TP
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Endrin
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Methoxychlor
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Toxaphene
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Dalapon
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—OXAMYL
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Simazine
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Dinoseb
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Hexachlorocyclopentadiene
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Aldicarb
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—LASSO
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Nitrate
January 1, 1999 – December 31, 1999
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
October 1, 1998 – October 31, 1998
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 1, 2003 – May 10, 2013 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| January 1, 2003 – December 31, 2003 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Barium | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Cadmium | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Chromium | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Fluoride | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Mercury | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Nickel | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Antimony, Total | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Beryllium, Total | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Thallium, Total | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Chlordane | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Heptachlor | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | 2,4,5-TP | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Endrin | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Methoxychlor | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Toxaphene | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Dalapon | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | OXAMYL | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Simazine | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Dinoseb | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Aldicarb | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | LASSO | — | Resolved |
| January 1, 1999 – December 31, 1999 | Monitoring, Regular | Nitrate | — | Resolved |
| October 1, 1998 – October 31, 1998 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- May 22, 2013State Compliance achieved46 linked violations
- January 4, 2005State Violation/Reminder Notice7 linked violations
- December 9, 1998State Violation/Reminder Notice1 linked violation
Last known contact on file (system is inactive)
SMITH, DIANE R
417-262-0465
LOCKWOOD, MO 65682