Public water system · 064000881
ActiveFort Sill Apache Tribal Complex
At a glance
Fort Sill Apache Tribal Complex (PWSID 064000881) is an active non-transient non-community water system in Oklahoma. It reports serving 48 people through 6 service connections. Its primary water source is groundwater, and EPA lists it as Native American-owned. EPA's records list one violation for this system; it is not health-based, and the most recent began in January 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
48
Service connections
6
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Fort Sill Apache Tribal Complex compare with other water systems in Oklahoma?
By EPA's size categories, Fort Sill Apache Tribal Complex is a very small system (500 people or fewer). Across Oklahoma, the 1,254 active systems average 2,907 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Fort Sill Apache Tribal Complex is well below that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Oklahoma has 84 active non-transient non-community water systems, 6.7% of the state's 1,254 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 701 Oklahoma systems (56%) list groundwater as their primary source.
Who owns and regulates Fort Sill Apache Tribal Complex?
EPA lists Fort Sill Apache Tribal Complex as Native American-owned. The EPA Region 06 is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act.
Does Fort Sill Apache Tribal Complex have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in January 2023. By type: 1 monitoring and reporting. The contaminant or rule involved is Nitrate-Nitrite. EPA lists 1 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
The one violation in EPA's records.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Fort Sill Apache Tribal Complex: frequently asked questions
Who runs Fort Sill Apache Tribal Complex?
Fort Sill Apache Tribal Complex (PWSID 064000881) is a non-transient non-community water system Native American-owned. It is regulated by the EPA Region 06.
How many people does Fort Sill Apache Tribal Complex serve?
Fort Sill Apache Tribal Complex reports serving 48 people through 6 service connections in Oklahoma.
Where does Fort Sill Apache Tribal Complex get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Fort Sill Apache Tribal Complex have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in January 2023. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Fort Sill Apache Tribal Complex's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list one violation for this system; it is not health-based, and the most recent began in January 2023. For current results, consult EPA ECHO, or the EPA Region 06.
Where can I find Fort Sill Apache Tribal Complex's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Fort Sill Apache Tribal Complex is a non-transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Oklahoma
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Oklahoma City | Oklahoma | 644,000 | Community | Surface water |
| Tulsa | Tulsa | 413,000 | Community | Surface water |
| Broken Arrow Municipal Authority | Tulsa | 116,330 | Community | Surface water |
| Norman Utilities Authority | Cleveland | 104,868 | Community | Surface water |
| Lawton | Comanche | 92,757 | Community | Surface water |
| Edmond Pwa | Oklahoma | 79,408 | Community | Surface water |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Fort Sill Apache Tribal Complex, PWSID 064000881, Oklahoma”, https://aquacensus.com/water-systems/oklahoma/fort-sill-apache-tribal-complex-064000881 (data as of October 1, 2026).