Sells, 09
Whitehorse Pass (Shopishk) Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of October 11, 2011. 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 09.
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 EPA Region 9’s official records. Always confirm current status with EPA Region 9 before making decisions based on this information.
System facts
- System ID (PWSID)
- 090400013
- System type
- Community Water System
- Population served
- 40
- Service connections
- 9
- Ownership
- Native American tribal
- Water source
- groundwater (wells)
Violation history
Maximum Contaminant Level Violation, Average
Health-basedArsenic
April 1, 2007 – June 30, 2007
ResolvedMonitoring, Regular
—Nitrate
January 1, 2004 – December 31, 2004
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
October 1, 2003 – October 31, 2003
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
May 1, 2003 – May 31, 2003
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
April 1, 2003 – April 30, 2003
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| April 1, 2007 – June 30, 2007 | Maximum Contaminant Level Violation, Average | Arsenic | Health-based | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Nitrate | — | Resolved |
| October 1, 2003 – October 31, 2003 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| May 1, 2003 – May 31, 2003 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| April 1, 2003 – April 30, 2003 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- April 19, 2011Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
- January 11, 2011Federal Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
- March 25, 2008Federal Variance/Exemption issuedgeneral compliance action — not tied to a specific violation on record
- March 25, 2008Federal Compliance achieved1 linked violation
- August 20, 2007Federal Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- August 15, 2006Federal Compliance achieved1 linked violation
- August 2, 2005Federal Compliance achieved1 linked violation
- August 2, 2005Federal Compliance achieved1 linked violation
- August 2, 2005Federal Compliance achieved1 linked violation
- August 2, 2005Federal Compliance achievedgeneral compliance action — not tied to a specific violation on record
- August 2, 2005Federal Compliance achievedgeneral compliance action — not tied to a specific violation on record
- August 2, 2005Federal Compliance achievedgeneral compliance action — not tied to a specific violation on record
Last known contact on file (system is inactive)
Tohono O'odham Utility Authority
Phone not on record
Sells, AZ 85634