Public water system · 090400094
ActiveAk-Chin Santa Cruz Commerce Center
At a glance
Ak-Chin Santa Cruz Commerce Center (PWSID 090400094) is an active non-transient non-community water system in Arizona. It reports serving 94 people through 8 service connections. Its primary water source is groundwater, and EPA lists it as Native American-owned. EPA's records list 11 violations for this system; 9 are health-based, and the most recent began in December 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
94
Service connections
8
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Ak-Chin Santa Cruz Commerce Center compare with other water systems in Arizona?
By EPA's size categories, Ak-Chin Santa Cruz Commerce Center is a very small system (500 people or fewer). 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 Ak-Chin Santa Cruz Commerce Center 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. 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 Ak-Chin Santa Cruz Commerce Center?
EPA lists Ak-Chin Santa Cruz Commerce Center as Native American-owned. The EPA Region 09 is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act.
Does Ak-Chin Santa Cruz Commerce Center have drinking water violations?
EPA's records list 11 violations for this system; 9 are health-based, and the most recent began in December 2025. The violations listed here began between July 2013 and December 2025. By type: 7 contaminant level above the legal limit, 2 required treatment not met and 2 monitoring and reporting. The contaminant or rule involved most often is Nitrate (7 of them). EPA lists 10 as resolved 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. 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 |
|---|---|---|---|---|
| 2025-12-31 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Unaddressed |
| 2019-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitratecode 1040 | Yes | Resolved |
| 2019-06-01 | Monitoring and reportingMonitoring, Source Water (GWR) · code 34 | E. colicode 3014 | No | Resolved |
| 2019-06-01 | Required treatment not metTreatment Technique, Level 1 Assessment (RTCR) · code 2A | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2019-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitratecode 1040 | Yes | Resolved |
| 2019-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitratecode 1040 | Yes | Resolved |
| 2018-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitratecode 1040 | Yes | Resolved |
| 2018-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitratecode 1040 | Yes | Resolved |
| 2018-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitratecode 1040 | Yes | Resolved |
| 2016-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitratecode 1040 | Yes | Resolved |
| 2013-07-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
All 11 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.
Ak-Chin Santa Cruz Commerce Center: frequently asked questions
Who runs Ak-Chin Santa Cruz Commerce Center?
Ak-Chin Santa Cruz Commerce Center (PWSID 090400094) is a non-transient non-community water system Native American-owned. It is regulated by the EPA Region 09.
How many people does Ak-Chin Santa Cruz Commerce Center serve?
Ak-Chin Santa Cruz Commerce Center reports serving 94 people through 8 service connections in Arizona.
Where does Ak-Chin Santa Cruz Commerce Center 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 Ak-Chin Santa Cruz Commerce Center have any drinking water violations?
EPA's records list 11 violations for this system; 9 are health-based, and the most recent began in December 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 Ak-Chin Santa Cruz Commerce Center'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 11 violations for this system; 9 are health-based, and the most recent began in December 2025. For current results, consult EPA ECHO, or the EPA Region 09.
Where can I find Ak-Chin Santa Cruz Commerce Center's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Ak-Chin Santa Cruz Commerce Center 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 Arizona
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Phoenix City of | Maricopa | 1,695,000 | Community | Surface water |
| Tucson City of | Pima | 732,906 | Community | Groundwater |
| Mesa City of | Maricopa | 466,000 | Community | Surface water |
| Gilbert, Town of | Maricopa | 247,600 | Community | Surface water |
| Chandler City of | Maricopa | 247,328 | Community | Surface water |
| Scottsdale City of | Maricopa | 241,361 | Community | Surface water |
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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, “Ak-Chin Santa Cruz Commerce Center, PWSID 090400094, Arizona”, https://aquacensus.com/water-systems/arizona/ak-chin-santa-cruz-commerce-center-090400094 (data as of October 1, 2026).