Public water system · AZ0404012
ActiveAsarco Hayden Operations
At a glance
Asarco Hayden Operations (PWSID AZ0404012) is an active non-transient non-community water system in Gila County, Arizona. It reports serving 417 people through 23 service connections. Its primary water source is groundwater, and EPA lists it as under public/private ownership. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in February 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
417
Service connections
23
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Asarco Hayden Operations compare with other water systems in Gila County?
By EPA's size categories, Asarco Hayden Operations is a very small system (500 people or fewer). Gila County has 101 active public water systems. Its population served is about 32% below the county average of 615 people per system, and accounts for 0.7% 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 non-transient non-community water system reports serving 430 people, so Asarco Hayden Operations is roughly in line with 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. Arizona has 232 active non-transient non-community water systems, 13% 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 Asarco Hayden Operations?
EPA lists Asarco Hayden Operations as under public/private ownership. 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. 33 of the 101 active systems in Gila County (33%) are also under public/private ownership.
Does Asarco Hayden Operations have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in February 2026. The violations listed here began between April 2020 and February 2026. By type: 8 monitoring and reporting, 2 reporting, 1 required treatment not met and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Chlorine (3 of them). EPA lists 9 as resolved, 2 as archived and 1 as unaddressed. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-02-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2026-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2026-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Archived |
| 2024-05-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2021-09-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2021-09-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2021-09-01 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2021-07-02 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2020-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Archived |
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.
Asarco Hayden Operations: frequently asked questions
Who runs Asarco Hayden Operations?
Asarco Hayden Operations (PWSID AZ0404012) is a non-transient non-community water system under public/private ownership. It is regulated by the AZ state drinking water program.
How many people does Asarco Hayden Operations serve?
Asarco Hayden Operations reports serving 417 people through 23 service connections in Gila County, Arizona.
Where does Asarco Hayden Operations 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 Asarco Hayden Operations 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 February 2026. 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 Asarco Hayden Operations' 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 February 2026. For current results, consult EPA ECHO, or the AZ state drinking water program.
Where can I find Asarco Hayden Operations' water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Asarco Hayden Operations 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 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, “Asarco Hayden Operations, PWSID AZ0404012, Arizona”, https://aquacensus.com/water-systems/arizona/asarco-hayden-operations-az0404012 (data as of October 1, 2026).