Public water system · AZ0404702
ActiveTonto National Monument
At a glance
Tonto National Monument (PWSID AZ0404702) is an active transient non-community water system in Gila County, Arizona. It reports serving 30 people through 8 service connections. Its primary water source is groundwater, and EPA lists it as owned by the federal government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2011.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
30
Service connections
8
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Tonto National Monument compare with other water systems in Gila County?
By EPA's size categories, Tonto National Monument is a very small system (500 people or fewer). Gila County has 101 active public water systems. Its population served is well below the county average of 615 people per system, and accounts for less than 0.1% of the 62,067 people reported by systems filed under the county. Across Arizona, the 1,769 active systems average 4,369 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Tonto National Monument is well below that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Arizona has 601 active transient non-community water systems, 34% of the state's 1,769 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,612 Arizona systems (91%) list groundwater as their primary source.
Who owns and regulates Tonto National Monument?
EPA lists Tonto National Monument as owned by the federal government. The AZ state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 9 of the 101 active systems in Gila County (8.9%) are also owned by the federal government.
Does Tonto National Monument have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2011. The violations listed here began between September 2002 and January 2011. By type: 11 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (12 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2011-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2007-11-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2007-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2007-03-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2007-02-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2007-02-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2007-02-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2007-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2006-12-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2003-08-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2002-11-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2002-09-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
The 12 most recent violations in EPA's records, newest first.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.
Tonto National Monument: frequently asked questions
Who runs Tonto National Monument?
Tonto National Monument (PWSID AZ0404702) is a transient non-community water system owned by the federal government. It is regulated by the AZ state drinking water program.
How many people does Tonto National Monument serve?
Tonto National Monument reports serving 30 people through 8 service connections in Gila County, Arizona.
Where does Tonto National Monument 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 Tonto National Monument have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2011. 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 Tonto National Monument'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. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2011. For current results, consult EPA ECHO, or the AZ state drinking water program.
Where can I find Tonto National Monument's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Tonto National Monument is a 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 Gila County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Payson Town of | Gila | 17,682 | Community | Groundwater |
| Arizona Water Co - Miami Claypool | Gila | 8,656 | Community | Groundwater |
| Pine Strawberry Wid | Gila | 8,013 | Community | Groundwater |
| Globe City of | Gila | 7,536 | Community | Groundwater |
| Tonto Basin Water - Lr Gardens West | Gila | 1,172 | Community | Groundwater |
| Town of Star Valley Water Department | Gila | 1,157 | Community | Groundwater |
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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, “Tonto National Monument, PWSID AZ0404702, Arizona”, https://aquacensus.com/water-systems/arizona/tonto-national-monument-az0404702 (data as of October 1, 2026).