Window Rock, 09
Mariano Lake Community School - BIA Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of June 27, 2016. 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)
- 093534012
- System type
- Community Water System
- Population served
- 267
- Service connections
- 19
- Ownership
- federal government
- Water source
- groundwater (wells)
Violation history
No violations on record for this system.
Enforcement actions
No enforcement actions on record for this system.
Last known contact on file (system is inactive)
BIE, Office of the Director
9288715961
Window Rock, AZ 86515