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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.

Every analyte ever detected for Silver Slipper Casino & Hotel, with how many results found it and when it was first and last detected. Covers the whole record, not only 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 61–70 of 144 samples, newest first — collected January 26, 2023 to June 7, 2023. The summary above covers all 144.

73 results from the 10 samples listed here: 9 detected, 64 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.

We withheld the location of 1 sampling point below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.

Chemical and radiological sample results for Silver Slipper Casino & Hotel, every result from 61 to 70 of 144 samples shown, newest first. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
Jun 7, 2023 08:00
Sampling point
LC0001 Location withheld
Sample type
Routine
Lab sample
PB-230609-001
Laboratory
MSDH Lab
0.0605 mg/l , sample collected Jun 7, 2023 08:00, sampling point LC0001 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 7, 2023 08:00, sampling point LC0001 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Collected
May 30, 2023 13:00
Sampling point
TF101 TF101
Sample type
Routine
Lab sample
IN-230531-001
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 30, 2023 13:00, sampling point TF101 Arsenic 1005 EPA method 200.8 Apr 1, 2023 – Jun 30, 2023
0.004 mg/l , sample collected May 30, 2023 13:00, sampling point TF101 Barium 1010 EPA method 200.8 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 30, 2023 13:00, sampling point TF101 Cadmium 1015 EPA method 200.8 Apr 1, 2023 – Jun 30, 2023
0.0039 mg/l , sample collected May 30, 2023 13:00, sampling point TF101 Chromium 1020 EPA method 200.8 Apr 1, 2023 – Jun 30, 2023
0.399 mg/l , sample collected May 30, 2023 13:00, sampling point TF101 Fluoride 1025 EPA method QC 10-109-12-2-A Apr 1, 2023 – Jun 30, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 30, 2023 13:00, sampling point TF101 Mercury 1035 EPA method 200.8 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 30, 2023 13:00, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected May 30, 2023 13:00, sampling point TF101 Selenium 1045 EPA method 200.8 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 30, 2023 13:00, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 30, 2023 13:00, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 30, 2023 13:00, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Apr 1, 2023 – Jun 30, 2023
Collected
Apr 13, 2023 14:03
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-230414-001
Laboratory
MSDH Lab
5.64 ug/l , sample collected Apr 13, 2023 14:03, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Apr 1, 2023 – Jun 30, 2023
Collected
Apr 13, 2023 11:30
Sampling point
TF101 TF101
Sample type
Routine
Lab sample
VO-230414-001
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 13, 2023 11:30, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 13, 2023 11:30, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 13, 2023 11:30, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 13, 2023 11:30, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 13, 2023 11:30, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 13, 2023 11:30, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 13, 2023 11:30, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 13, 2023 11:30, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 13, 2023 11:30, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 13, 2023 11:30, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 13, 2023 11:30, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 13, 2023 11:30, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 13, 2023 11:30, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 13, 2023 11:30, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 13, 2023 11:30, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 13, 2023 11:30, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 13, 2023 11:30, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 13, 2023 11:30, sampling point TF101 Benzene 2990 EPA method 524.2 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 13, 2023 11:30, sampling point TF101 Toluene 2991 EPA method 524.2 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 13, 2023 11:30, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Apr 1, 2023 – Jun 30, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Apr 13, 2023 11:30, sampling point TF101 Styrene 2996 EPA method 524.2 Apr 1, 2023 – Jun 30, 2023
Collected
Apr 13, 2023 14:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-230414-001
Laboratory
MSDH Lab
3.27 ug/l , sample collected Apr 13, 2023 14:00, sampling point MRT000 TTHM 2950 EPA method 524.2 Apr 1, 2023 – Jun 30, 2023
Collected
Mar 14, 2023 11:00
Sampling point
TF101 TF101
Sample type
Routine
Lab sample
CN-230315-003
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Mar 14, 2023 11:00, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Mar 31, 2023
Collected
Mar 14, 2023 11:10
Sampling point
TF101 TF101
Sample type
Routine
Lab sample
VO-230315-015
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 14, 2023 11:10, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 14, 2023 11:10, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 14, 2023 11:10, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 14, 2023 11:10, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 14, 2023 11:10, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 14, 2023 11:10, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 14, 2023 11:10, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 14, 2023 11:10, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 14, 2023 11:10, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 14, 2023 11:10, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 14, 2023 11:10, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 14, 2023 11:10, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 14, 2023 11:10, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 14, 2023 11:10, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 14, 2023 11:10, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 14, 2023 11:10, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 14, 2023 11:10, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 14, 2023 11:10, sampling point TF101 Benzene 2990 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 14, 2023 11:10, sampling point TF101 Toluene 2991 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 14, 2023 11:10, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 14, 2023 11:10, sampling point TF101 Styrene 2996 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Collected
Feb 27, 2023 13:30
Sampling point
TF101 TF101
Sample type
Routine
Lab sample
IN-230228-001
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 27, 2023 13:30, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
0.0039 mg/l , sample collected Feb 27, 2023 13:30, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 27, 2023 13:30, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 27, 2023 13:30, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
0.334 mg/l , sample collected Feb 27, 2023 13:30, sampling point TF101 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Mar 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 27, 2023 13:30, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 27, 2023 13:30, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 27, 2023 13:30, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 27, 2023 13:30, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 27, 2023 13:30, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 27, 2023 13:30, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
Collected
Feb 7, 2023 12:25
Sampling point
TF101 TF101
Sample type
Routine
Lab sample
NI-230208-023
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 7, 2023 12:25, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 7, 2023 12:25, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 7, 2023 12:25, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Jan 26, 2023 14:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-230127-005
Laboratory
MSDH Lab
3.32 ug/l , sample collected Jan 26, 2023 14:00, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023

Routine (10).