Non-Transient Non-Community Water System · PWS WI1570639
Ho Chunk Casino
Black River Falls, Wisconsin 54615 - drinking water served from groundwater sources to 5,486 people, tracked in EPA SDWIS and UCMR5.
- 5,486
- People served
- 0
- EPA violations
- 0
- Health-based
- No PFAS
- UCMR5 result
The verdict
Ho Chunk Casino carries a clean Safe Drinking Water Act record, zero EPA violations and no PFAS in UCMR5 testing.
- 0
- Total EPA violations on record
- 0%
- Health-based (MCL / treatment failure)
- 5,486
- People served by this system
- 0
- PFAS compounds detected (UCMR5)
Water Quality Snapshot: Ho Chunk Casino
Ho Chunk Casino is a native american-owned non-transient non-community water system that delivers drinking water to 5,486 residents in Black River Falls, Wisconsin (Sauk County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 0 total violations for this system , giving it a clean Safe Drinking Water Act compliance record.
No specific contaminant violations have been recorded in EPA's detailed violation register for this system. This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.
Across Wisconsin, EPA tracks 10,988 public water systems serving 5,131,439 people, with 285,161 cumulative violations and 58,688 health-based violations on record. About 72% of systems in the state carry at least one violation, and state-wide the average per system is 26 violations. Statewide, 78 of 202 UCMR5-tested systems have reported PFAS detections (38.6%).
Ho Chunk Casino's 0 violations sit below the Wisconsin average.
All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Native American
- Connections
- 1
- County
- Sauk
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 0
- Treatment Tech Violations
- 0
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 58 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFHpS | 4/23/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFUnA | 4/23/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFHxA | 4/23/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFTrDA | 4/23/2024 | <7.00 ppt | 7.00 ppt | Not Detected |
| NEtFOSAA | 4/23/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| NMeFOSAA | 4/23/2024 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFBS | 4/23/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 4/23/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxS | 4/23/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFNA | 4/23/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 4/23/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOA | 4/23/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFTA | 4/23/2024 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFDoA | 4/23/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeS | 4/23/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFMPA | 4/23/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| NFDHA | 4/23/2024 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFEESA | 4/23/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 4/23/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeA | 4/23/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 4/23/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| 8:2 FTS | 4/23/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 4/23/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 4/23/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 4/23/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| HFPO-DA | 4/23/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| ADONA | 4/23/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 9Cl-PF3ONS | 4/23/2024 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFMBA | 4/23/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeS | 10/22/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHpS | 10/22/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBS | 10/22/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 10/22/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| NFDHA | 10/22/2024 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFHxS | 10/22/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 10/22/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| ADONA | 10/22/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFTA | 10/22/2024 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFTrDA | 10/22/2024 | <7.00 ppt | 7.00 ppt | Not Detected |
| NEtFOSAA | 10/22/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| NMeFOSAA | 10/22/2024 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFHpA | 10/22/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFNA | 10/22/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 10/22/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOA | 10/22/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFDA | 10/22/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 10/22/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 10/22/2024 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFHxA | 10/22/2024 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMPA | 10/22/2024 | <4.00 ppt | 4.00 ppt | Not Detected |
Verify This Water System
The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Ho Chunk Casino.
EPA SDWIS, Federal Reports
EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:
View PWS ID WI1570639 on SDWISSource: EPA SDWIS Federal Reports Search
Wisconsin Drinking Water Authority
Wisconsin DNR, Drinking Water and Groundwater is the primacy agency that licenses and inspects Ho Chunk Casino under EPA-delegated authority.
Open WI regulator portalHow Ho Chunk Casino Compares
Cross-reference this system's record against state averages and the federal MCL framework for context.
| Metric | Ho Chunk Casino | Wisconsin avg | Federal benchmark |
|---|---|---|---|
| Total violations | 0 | 26 | SDWA compliance, any non-zero count is a recorded breach |
| Health-based violations | 0 | 5.3 | Indicates a contaminant exceeded a federal MCL |
| PFAS detection | None | 38.6% | EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt |
| Population served | 5,486 | 467 | Sizing context for compliance burden |
Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 10,988 regulated public water systems in Wisconsin.
Federal MCL reference, Safe Drinking Water Act thresholds ▼
| Contaminant | Federal MCL / Action Level | Note |
|---|---|---|
| Lead | 0 mg/L (Action Level: 0.015 mg/L) | Lead and Copper Rule treatment technique |
| Arsenic | 0.010 mg/L (10 ppb) | Health-based MCL since 2006 |
| Total Coliform | Treatment technique (RTCR) | Indicator organism, monitoring trigger |
| PFOA / PFOS (PFAS) | 4.0 ppt each (final 2024 rule) | Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026) |
| Nitrate (as N) | 10 mg/L | Acute health risk for infants |
Frequently Asked Questions
Is Ho Chunk Casino water safe to drink? ▼
How many people does Ho Chunk Casino serve? ▼
What type of violations does Ho Chunk Casino have? ▼
Has PFAS been detected in Ho Chunk Casino water? ▼
What water source does Ho Chunk Casino use? ▼
Where does this data come from? ▼
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.