Public water system · 090400048
ActiveSan Tan Mountain Casino Temporary Water System
At a glance
San Tan Mountain Casino Temporary Water System (PWSID 090400048) is an active non-transient non-community water system in Arizona. It reports serving 7,990 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as Native American-owned. EPA's records list 3 violations for this system; none is health-based, and the most recent began in January 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
7,990
Service connections
2
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does San Tan Mountain Casino Temporary Water System compare with other water systems in Arizona?
By EPA's size categories, San Tan Mountain Casino Temporary Water System is a medium system (3,301 to 10,000 people). 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 San Tan Mountain Casino Temporary Water System is about 19 times 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 San Tan Mountain Casino Temporary Water System?
EPA lists San Tan Mountain Casino Temporary Water System 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 San Tan Mountain Casino Temporary Water System have drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in January 2024. The violations listed here began between October 2023 and January 2024. By type: 3 monitoring and reporting. The contaminant or rule involved most often is Lead and Copper Rule (2 of them). EPA lists 3 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 |
|---|---|---|---|---|
| 2024-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2023-10-26 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2023-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | 2,3,7,8-TCDD (dioxin)code 2063 | No | Resolved |
All 3 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.
San Tan Mountain Casino Temporary Water System: frequently asked questions
Who runs San Tan Mountain Casino Temporary Water System?
San Tan Mountain Casino Temporary Water System (PWSID 090400048) is a non-transient non-community water system Native American-owned. It is regulated by the EPA Region 09.
How many people does San Tan Mountain Casino Temporary Water System serve?
San Tan Mountain Casino Temporary Water System reports serving 7,990 people through 2 service connections in Arizona.
Where does San Tan Mountain Casino Temporary Water System 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 San Tan Mountain Casino Temporary Water System have any drinking water violations?
EPA's records list 3 violations for this system; none is health-based, and the most recent began in January 2024. 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 San Tan Mountain Casino Temporary Water System'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 3 violations for this system; none is health-based, and the most recent began in January 2024. For current results, consult EPA ECHO, or the EPA Region 09.
Where can I find San Tan Mountain Casino Temporary Water System's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. San Tan Mountain Casino Temporary Water System 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, “San Tan Mountain Casino Temporary Water System, PWSID 090400048, Arizona”, https://aquacensus.com/water-systems/arizona/san-tan-mountain-casino-temporary-water-system-090400048 (data as of October 1, 2026).