This is a rebuild of Drinking Water Watch and not yet the official record. Use the agency’s current Drinking Water Watch for anything you need to rely on.
Chemical and radiological sample results
MS0230075 , Silver Slipper Casino & Hotel
13 of the 49 analytes this system has been tested for have been detected at least once, across 144 samples on record.
The other 36 were tested for and never found. An analyte is counted here if any result on record measured it, so this covers the whole history and not the samples listed below.
Across all 144 samples on record, detections range from March 20, 2020 to July 7, 2026. These figures cover the whole record.
What counts as a non-detect is defined in the help: Less than Indicator. This system’s violations.
What has been detected, ever
Every analyte measured above its reporting level at any point in this system’s record, most often detected first. This is not limited to the samples listed below.
| Analyte | Kind | Detected in | First detected | Last detected |
|---|---|---|---|---|
| Copper, Free 1022 | Inorganic Chemical | 90 of 90 results | Mar 20, 2020 | Aug 26, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 13 of 13 results | Nov 8, 2022 | Jul 7, 2026 |
| TTHM 2950 | Organic Chemical | 12 of 14 results | Dec 7, 2022 | Jul 7, 2026 |
| Lead 1030 | Inorganic Chemical | 11 of 90 results | Mar 26, 2020 | Aug 26, 2025 |
| Barium 1010 | Inorganic Chemical | 5 of 5 results | Dec 20, 2022 | Apr 15, 2025 |
| Fluoride 1025 | Inorganic Chemical | 5 of 5 results | Dec 20, 2022 | Apr 15, 2025 |
| Chromium 1020 | Inorganic Chemical | 3 of 5 results | May 30, 2023 | Apr 15, 2025 |
| Cyanide 1024 | Inorganic Chemical | 2 of 8 results | Jul 11, 2023 | Apr 23, 2024 |
| Dichloroacetic Acid 2451 | Organic Chemical | 1 of 1 result | Jul 7, 2026 | Jul 7, 2026 |
| Chloroform 2941 | Organic Chemical | 1 of 1 result | Jul 7, 2026 | Jul 7, 2026 |
| Arsenic 1005 | Inorganic Chemical | 1 of 5 results | Apr 15, 2025 | Apr 15, 2025 |
| Nickel 1036 | Inorganic Chemical | 1 of 5 results | Apr 15, 2025 | Apr 15, 2025 |
| Xylenes, Total 2955 | Organic Chemical | 1 of 8 results | Oct 31, 2022 | Oct 31, 2022 |
No date range is applied: this list draws on every sample on record. Show the last two years only.
The most recent samples, result by result
The table below lists 71–80 of 144 samples, newest first — collected May 24, 2022 to January 26, 2023. The summary above covers all 144.
41 results from the 10 samples listed here: 8 detected, 33 not detected. Across the whole record it is 146 of 471. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 4.13 ug/l , sample collected Jan 26, 2023 14:00, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2023 – Mar 31, 2023 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 20, 2022 11:00, sampling point TF101 | Arsenic 1005 EPA method 200.8 | Oct 1, 2022 – Dec 31, 2022 |
| 0.0043 mg/l , sample collected Dec 20, 2022 11:00, sampling point TF101 | Barium 1010 EPA method 200.8 | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 20, 2022 11:00, sampling point TF101 | Cadmium 1015 EPA method 200.8 | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 20, 2022 11:00, sampling point TF101 | Chromium 1020 EPA method 200.8 | Oct 1, 2022 – Dec 31, 2022 |
| 0.365 mg/l , sample collected Dec 20, 2022 11:00, sampling point TF101 | Fluoride 1025 EPA method QC 10-109-12-2-A | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 20, 2022 11:00, sampling point TF101 | Mercury 1035 EPA method 200.8 | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 20, 2022 11:00, sampling point TF101 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Dec 20, 2022 11:00, sampling point TF101 | Selenium 1045 EPA method 200.8 | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 20, 2022 11:00, sampling point TF101 | Antimony, Total 1074 EPA method 200.8 | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 20, 2022 11:00, sampling point TF101 | Beryllium, Total 1075 EPA method 200.8 | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 20, 2022 11:00, sampling point TF101 | Thallium, Total 1085 EPA method 200.8 | Oct 1, 2022 – Dec 31, 2022 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Dec 13, 2022 10:20, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Oct 1, 2022 – Dec 31, 2022 |
|
||
| 6.73 ug/l , sample collected Dec 7, 2022 13:10, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Oct 1, 2022 – Dec 31, 2022 |
|
||
| 3.81 ug/l , sample collected Dec 7, 2022 13:00, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Oct 1, 2022 – Dec 31, 2022 |
|
||
| 7.73 ug/l , sample collected Nov 8, 2022 13:00, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Oct 1, 2022 – Dec 31, 2022 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 8, 2022 13:00, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Oct 1, 2022 – Dec 31, 2022 |
|
||
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 31, 2022 14:00, sampling point TF101 | 1,2,4-Trichlorobenzene 2378 EPA method 524.2 | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 31, 2022 14:00, sampling point TF101 | Cis-1,2-Dichloroethylene 2380 EPA method 524.2 | Oct 1, 2022 – Dec 31, 2022 |
| 0.504 ug/l , sample collected Oct 31, 2022 14:00, sampling point TF101 | Xylenes, Total 2955 EPA method 524.2 | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 31, 2022 14:00, sampling point TF101 | Dichloromethane 2964 EPA method 524.2 | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 31, 2022 14:00, sampling point TF101 | O-Dichlorobenzene 2968 EPA method 524.2 | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 31, 2022 14:00, sampling point TF101 | P-Dichlorobenzene 2969 EPA method 524.2 | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 31, 2022 14:00, sampling point TF101 | Vinyl Chloride 2976 EPA method 524.2 | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 31, 2022 14:00, sampling point TF101 | 1,1-Dichloroethylene 2977 EPA method 524.2 | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 31, 2022 14:00, sampling point TF101 | Trans-1,2-Dichloroethylene 2979 EPA method 524.2 | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 31, 2022 14:00, sampling point TF101 | 1,2-Dichloroethane 2980 EPA method 524.2 | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 31, 2022 14:00, sampling point TF101 | 1,1,1-Trichloroethane 2981 EPA method 524.2 | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 31, 2022 14:00, sampling point TF101 | Carbon Tetrachloride 2982 EPA method 524.2 | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 31, 2022 14:00, sampling point TF101 | 1,2-Dichloropropane 2983 EPA method 524.2 | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 31, 2022 14:00, sampling point TF101 | Trichloroethylene 2984 EPA method 524.2 | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 31, 2022 14:00, sampling point TF101 | 1,1,2-Trichloroethane 2985 EPA method 524.2 | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 31, 2022 14:00, sampling point TF101 | Tetrachloroethylene 2987 EPA method 524.2 | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 31, 2022 14:00, sampling point TF101 | Chlorobenzene 2989 EPA method 524.2 | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 31, 2022 14:00, sampling point TF101 | Benzene 2990 EPA method 524.2 | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 31, 2022 14:00, sampling point TF101 | Toluene 2991 EPA method 524.2 | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 31, 2022 14:00, sampling point TF101 | Ethylbenzene 2992 EPA method 524.2 | Oct 1, 2022 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 31, 2022 14:00, sampling point TF101 | Styrene 2996 EPA method 524.2 | Oct 1, 2022 – Dec 31, 2022 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Aug 16, 2022 13:40, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jul 1, 2022 – Sep 30, 2022 |
|
||
| 0.0564 mg/l , sample collected May 24, 2022 08:45, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2022 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 24, 2022 08:45, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2022 |
-
- Collected
- Jan 26, 2023 14:00
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- HA-230127-005
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Mar 31, 2023
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 4.13 ug/l
-
- Collected
- Dec 20, 2022 11:00
- Sampling point
- TF101 TF101
- Sample type
- Routine
- Lab sample
- IN-221221-001
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2022 – Dec 31, 2022
-
Barium 1010 EPA method 200.8
- Result
- 0.0043 mg/l
- Monitoring period
- Oct 1, 2022 – Dec 31, 2022
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2022 – Dec 31, 2022
-
Chromium 1020 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2022 – Dec 31, 2022
-
Fluoride 1025 EPA method QC 10-109-12-2-A
- Result
- 0.365 mg/l
- Monitoring period
- Oct 1, 2022 – Dec 31, 2022
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2022 – Dec 31, 2022
-
Nickel 1036 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.0025 mg/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2022 – Dec 31, 2022
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2022 – Dec 31, 2022
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2022 – Dec 31, 2022
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Oct 1, 2022 – Dec 31, 2022
-
- Collected
- Dec 13, 2022 10:20
- Sampling point
- TF101 TF101
- Sample type
- Routine
- Lab sample
- CN-221214-003
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2022 – Dec 31, 2022
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Dec 7, 2022 13:10
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- HA-221208-009
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2022 – Dec 31, 2022
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 6.73 ug/l
-
- Collected
- Dec 7, 2022 13:00
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- TH-221208-009
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2022 – Dec 31, 2022
-
TTHM 2950 EPA method 524.2
- Result
- 3.81 ug/l
-
- Collected
- Nov 8, 2022 13:00
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- HA-221109-028
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2022 – Dec 31, 2022
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 7.73 ug/l
-
- Collected
- Nov 8, 2022 13:00
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- TH-221109-028
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2022 – Dec 31, 2022
-
TTHM 2950 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Oct 31, 2022 14:00
- Sampling point
- TF101 TF101
- Sample type
- Routine
- Lab sample
- VO-221101-009
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2022 – Dec 31, 2022
-
1,2,4-Trichlorobenzene 2378 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Cis-1,2-Dichloroethylene 2380 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Xylenes, Total 2955 EPA method 524.2
- Result
- 0.504 ug/l
-
Dichloromethane 2964 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
O-Dichlorobenzene 2968 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
P-Dichlorobenzene 2969 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Vinyl Chloride 2976 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,1-Dichloroethylene 2977 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Trans-1,2-Dichloroethylene 2979 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,2-Dichloroethane 2980 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,1,1-Trichloroethane 2981 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Carbon Tetrachloride 2982 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,2-Dichloropropane 2983 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Trichloroethylene 2984 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,1,2-Trichloroethane 2985 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Tetrachloroethylene 2987 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Chlorobenzene 2989 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Benzene 2990 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Toluene 2991 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Ethylbenzene 2992 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Styrene 2996 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Aug 16, 2022 13:40
- Sampling point
- TF101 TF101
- Sample type
- Routine
- Lab sample
- CN-220817-001
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2022 – Sep 30, 2022
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- May 24, 2022 08:45
- Sampling point
- DS000 Distribution DS000
- Sample type
- Routine
- Lab sample
- PB-220526-014
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2022
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0564 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
Routine (10).