NN
Tsaile-Black Pinnacle OM Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of January 1, 1970. 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 NN.
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 Navajo Nation’s official records. Always confirm current status with Navajo Nation before making decisions based on this information.
System facts
- System ID (PWSID)
- NN0400256
- System type
- Community Water System
- Population served
- 28
- Service connections
- 5
- Ownership
- Native American tribal
- Water source
- groundwater (wells)
Violation history
Monitoring, Routine Major (TCR)
—Coliform (TCR)
December 1, 2004 – January 1, 1970
ArchivedMonitoring, Routine Major (TCR)
—Coliform (TCR)
November 1, 2004 – January 1, 1970
ArchivedMonitoring, Routine Major (TCR)
—Coliform (TCR)
August 1, 2004 – January 1, 1970
ArchivedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
January 1, 2004 – January 1, 1970
ArchivedFollow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
January 1, 2004 – January 1, 1970
ArchivedMonitoring and Reporting (DBP)
—TTHM
January 1, 2004 – January 1, 1970
ArchivedMonitoring, Routine Major (TCR)
—Coliform (TCR)
October 1, 2001 – January 1, 1970
ArchivedMonitoring, Routine Major (TCR)
—Coliform (TCR)
March 31, 1996 – January 1, 1970
ArchivedMonitoring, Routine Major (TCR)
—Coliform (TCR)
March 31, 1996 – January 1, 1970
ArchivedMonitoring, Routine Major (TCR)
—Coliform (TCR)
February 29, 1996 – January 1, 1970
ArchivedMonitoring, Routine Major (TCR)
—Coliform (TCR)
February 29, 1996 – January 1, 1970
Archived
Archived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| December 1, 2004 – January 1, 1970 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| November 1, 2004 – January 1, 1970 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| August 1, 2004 – January 1, 1970 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| January 1, 2004 – January 1, 1970 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Archived |
| January 1, 2004 – January 1, 1970 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Archived |
| January 1, 2004 – January 1, 1970 | Monitoring and Reporting (DBP) | TTHM | — | Archived |
| October 1, 2001 – January 1, 1970 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| March 31, 1996 – January 1, 1970 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| March 31, 1996 – January 1, 1970 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| February 29, 1996 – January 1, 1970 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| February 29, 1996 – January 1, 1970 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
Archived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- May 11, 2006State Other6 linked violations
Last known contact on file (system is inactive)
Not on record
Phone not on record