Public water system · 062005840
ActiveQuapaw Downstream Casino & Resort
At a glance
Quapaw Downstream Casino & Resort (PWSID 062005840) is an active non-transient non-community water system in Oklahoma. It reports serving 6,000 people through 17 service connections. Its primary water source is purchased groundwater under influence, and EPA lists it as Native American-owned. EPA's records list 6 violations for this system; 1 is health-based, and the most recent began in October 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
6,000
Service connections
17
Primary source
GUP
Purchased groundwater under influence
System type
NTNCWS
Non-transient non-community water system
System record
How does Quapaw Downstream Casino & Resort compare with other water systems in Oklahoma?
By EPA's size categories, Quapaw Downstream Casino & Resort is a medium system (3,301 to 10,000 people). Across Oklahoma, the 1,254 active systems average 2,907 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Quapaw Downstream Casino & Resort is about 14 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. Oklahoma has 84 active non-transient non-community water systems, 6.7% of the state's 1,254 active systems. Purchased groundwater under the influence of surface water means the system buys that kind of water from another public water system. 5 Oklahoma systems (0.4%) list purchased groundwater under influence as their primary source.
Who owns and regulates Quapaw Downstream Casino & Resort?
EPA lists Quapaw Downstream Casino & Resort as Native American-owned. The EPA Region 06 is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act.
Does Quapaw Downstream Casino & Resort have drinking water violations?
EPA's records list 6 violations for this system; 1 is health-based, and the most recent began in October 2019. The violations listed here began between February 2009 and October 2019. By type: 5 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (2 of them). EPA lists 4 as resolved and 2 as archived. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2019-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Archived |
| 2019-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Archived |
| 2014-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2009-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2009-02-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 6 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.
Quapaw Downstream Casino & Resort: frequently asked questions
Who runs Quapaw Downstream Casino & Resort?
Quapaw Downstream Casino & Resort (PWSID 062005840) is a non-transient non-community water system Native American-owned. It is regulated by the EPA Region 06.
How many people does Quapaw Downstream Casino & Resort serve?
Quapaw Downstream Casino & Resort reports serving 6,000 people through 17 service connections in Oklahoma.
Where does Quapaw Downstream Casino & Resort get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater under influence. Purchased groundwater under the influence of surface water means the system buys that kind of water from another public water system.
Does Quapaw Downstream Casino & Resort have any drinking water violations?
EPA's records list 6 violations for this system; 1 is health-based, and the most recent began in October 2019. 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 Quapaw Downstream Casino & Resort'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 6 violations for this system; 1 is health-based, and the most recent began in October 2019. For current results, consult EPA ECHO, or the EPA Region 06.
Where can I find Quapaw Downstream Casino & Resort's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Quapaw Downstream Casino & Resort 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 Oklahoma
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Oklahoma City | Oklahoma | 644,000 | Community | Surface water |
| Tulsa | Tulsa | 413,000 | Community | Surface water |
| Broken Arrow Municipal Authority | Tulsa | 116,330 | Community | Surface water |
| Norman Utilities Authority | Cleveland | 104,868 | Community | Surface water |
| Lawton | Comanche | 92,757 | Community | Surface water |
| Edmond Pwa | Oklahoma | 79,408 | 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, “Quapaw Downstream Casino & Resort, PWSID 062005840, Oklahoma”, https://aquacensus.com/water-systems/oklahoma/quapaw-downstream-casino-resort-062005840 (data as of October 1, 2026).