Public water system · AZ0401002
ActiveChapache Water Coop
At a glance
Chapache Water Coop (PWSID AZ0401002) is an active transient non-community water system in Apache County, Arizona. It reports serving 100 people through 56 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
100
Service connections
56
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Chapache Water Coop compare with other water systems in Apache County?
By EPA's size categories, Chapache Water Coop is a very small system (500 people or fewer). Apache County has 47 active public water systems. Its population served is well below the county average of 493 people per system, and accounts for 0.4% of the 23,153 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 Chapache Water Coop is about 31% 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 Chapache Water Coop?
EPA lists Chapache Water Coop as privately owned. 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. 24 of the 47 active systems in Apache County (51%) are also privately owned.
Does Chapache Water Coop 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 2025. The violations listed here began between July 2021 and January 2025. By type: 6 public notice, recordkeeping or other, 4 monitoring, 1 contaminant level above the legal limit and 1 reporting. The contaminant or rule involved most often is Revised Total Coliform Rule (6 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 |
|---|---|---|---|---|
| 2025-01-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, E. coli (RTCR) · code 1A | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2022-01-02 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2022-01-02 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2021-11-02 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2021-11-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-10-02 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2021-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-08-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2021-08-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-07-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | 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.
Chapache Water Coop: frequently asked questions
Who runs Chapache Water Coop?
Chapache Water Coop (PWSID AZ0401002) is a transient non-community water system privately owned. It is regulated by the AZ state drinking water program.
How many people does Chapache Water Coop serve?
Chapache Water Coop reports serving 100 people through 56 service connections in Apache County, Arizona.
Where does Chapache Water Coop 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 Chapache Water Coop 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 2025. 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 Chapache Water Coop'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 2025. For current results, consult EPA ECHO, or the AZ state drinking water program.
Where can I find Chapache Water Coop's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Chapache Water Coop 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 Apache County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Eagar Town of | Apache | 4,590 | Community | Groundwater |
| St Johns City of | Apache | 3,500 | Community | Groundwater |
| Springerville Town of | Apache | 1,972 | Community | Groundwater |
| Petrified Forest Np | Apache | 1,742 | Community | Purchased groundwater |
| Cedar Grove Water Company | Apache | 1,564 | Community | Groundwater |
| Lord Az Water 2 - Winchester Trails | Apache | 1,304 | 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, “Chapache Water Coop, PWSID AZ0401002, Arizona”, https://aquacensus.com/water-systems/arizona/chapache-water-coop-az0401002 (data as of October 1, 2026).