BOISE, ID · Ada County
UWI MESA WATER COMPANY Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of December 1, 1998. 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 Ada County, ID.
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 Idaho’s official records. Always confirm current status with Idaho before making decisions based on this information.
System facts
- System ID (PWSID)
- ID4010157
- System type
- Community Water System
- Population served
- 875
- Service connections
- 355
- Ownership
- privately owned
- Water source
- groundwater (wells)
Violation history
Maximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
June 1, 1997 – June 30, 1997
ArchivedMonitoring, Routine Major (TCR)
—Coliform (TCR)
November 1, 1996 – November 30, 1996
ArchivedMonitoring, Regular
—Nitrate
January 1, 1996 – December 31, 1996
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
January 1, 1994 – January 31, 1994
ResolvedMonitoring, Regular
—Nitrite
January 1, 1993 – December 31, 1995
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
January 1, 1991 – March 31, 1991
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 |
|---|---|---|---|---|
| June 1, 1997 – June 30, 1997 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| November 1, 1996 – November 30, 1996 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| January 1, 1996 – December 31, 1996 | Monitoring, Regular | Nitrate | — | Resolved |
| January 1, 1994 – January 31, 1994 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| January 1, 1993 – December 31, 1995 | Monitoring, Regular | Nitrite | — | Resolved |
| January 1, 1991 – March 31, 1991 | 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
No enforcement actions on record for this system.
Last known contact on file (system is inactive)
Not on record
208-362-7371
BOISE, ID 83707