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; the list of samples further down is narrowed.

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

Showing samples collected between September 25, 2024 and September 25, 2026. That is this page’s default, not a limit on what the agency records.

Show every sample on record

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The most recent samples, result by result

The table below lists 11–20 of 23 samples, newest first — collected February 6, 2025 to August 26, 2025. The summary above covers all 23.

44 results from the 10 samples listed here: 12 detected, 32 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 2 sampling points 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 11 to 20 of 23 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 Aug 26, 2025 09:45 Sampling point LC0007 Location withheld Sample type Routine Lab sample PB-250827-042 Laboratory MSDH Lab
0.025 mg/l , sample collected Aug 26, 2025 09:45, sampling point LC0007	Copper, Free 1022 EPA method 200.8	Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 26, 2025 09:45, sampling point LC0007	Lead 1030 EPA method 200.8	Not recorded
Collected Aug 26, 2025 09:00 Sampling point LC0010 Location withheld Sample type Routine Lab sample PB-250827-041 Laboratory MSDH Lab
0.0133 mg/l , sample collected Aug 26, 2025 09:00, sampling point LC0010	Copper, Free 1022 EPA method 200.8	Not recorded
0.5 ug/l , sample collected Aug 26, 2025 09:00, sampling point LC0010	Lead 1030 EPA method 200.8	Not recorded
Collected Jul 22, 2025 10:50 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample TH-250723-001 Laboratory MSDH Lab
5.13 ug/l , sample collected Jul 22, 2025 10:50, sampling point MRT000	TTHM 2950 EPA method 524.2	Jul 1, 2025 – Sep 30, 2025
Collected Jul 22, 2025 10:50 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample HA-250723-001 Laboratory MSDH Lab
5.89 ug/l , sample collected Jul 22, 2025 10:50, sampling point MRT000	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Jul 1, 2025 – Sep 30, 2025
Collected Apr 29, 2025 13:30 Sampling point TF101 TF101 Sample type Routine Lab sample CN-250430-007 Laboratory MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Apr 29, 2025 13:30, sampling point TF101	Cyanide 1024 EPA method QC10204001X	Jan 1, 2025 – Dec 31, 2025
Collected Apr 15, 2025 11:52 Sampling point TF101 TF101 Sample type Routine Lab sample IN-250416-001 Laboratory MSDH Lab
0.0005 mg/l , sample collected Apr 15, 2025 11:52, sampling point TF101	Arsenic 1005 EPA method 200.8	Jan 1, 2025 – Dec 31, 2025
0.0044 mg/l , sample collected Apr 15, 2025 11:52, sampling point TF101	Barium 1010 EPA method 200.8	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 15, 2025 11:52, sampling point TF101	Cadmium 1015 EPA method 200.8	Jan 1, 2025 – Dec 31, 2025
0.0022 mg/l , sample collected Apr 15, 2025 11:52, sampling point TF101	Chromium 1020 EPA method 200.8	Jan 1, 2025 – Dec 31, 2025
0.404 mg/l , sample collected Apr 15, 2025 11:52, sampling point TF101	Fluoride 1025 EPA method QC 10-109-12-2-A	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 15, 2025 11:52, sampling point TF101	Mercury 1035 EPA method 200.8	Jan 1, 2025 – Dec 31, 2025
0.0013 mg/l , sample collected Apr 15, 2025 11:52, sampling point TF101	Nickel 1036 EPA method 200.8	Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Apr 15, 2025 11:52, sampling point TF101	Selenium 1045 EPA method 200.8	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 15, 2025 11:52, sampling point TF101	Antimony, Total 1074 EPA method 200.8	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 15, 2025 11:52, sampling point TF101	Beryllium, Total 1075 EPA method 200.8	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 15, 2025 11:52, sampling point TF101	Thallium, Total 1085 EPA method 200.8	Jan 1, 2025 – Dec 31, 2025
Collected Apr 15, 2025 11:44 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample HA-250416-001 Laboratory MSDH Lab
13.7 ug/l , sample collected Apr 15, 2025 11:44, sampling point MRT000	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Apr 1, 2025 – Jun 30, 2025
Collected Apr 15, 2025 11:43 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample TH-250416-001 Laboratory MSDH Lab
6.82 ug/l , sample collected Apr 15, 2025 11:43, sampling point MRT000	TTHM 2950 EPA method 524.2	Apr 1, 2025 – Jun 30, 2025
Collected Feb 11, 2025 13:15 Sampling point TF101 TF101 Sample type Routine Lab sample VO-250212-004 Laboratory MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 13:15, sampling point TF101	1,2,4-Trichlorobenzene 2378 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 13:15, sampling point TF101	Cis-1,2-Dichloroethylene 2380 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 13:15, sampling point TF101	Xylenes, Total 2955 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 13:15, sampling point TF101	Dichloromethane 2964 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 13:15, sampling point TF101	O-Dichlorobenzene 2968 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 13:15, sampling point TF101	P-Dichlorobenzene 2969 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 13:15, sampling point TF101	Vinyl Chloride 2976 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 13:15, sampling point TF101	1,1-Dichloroethylene 2977 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 13:15, sampling point TF101	Trans-1,2-Dichloroethylene 2979 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 13:15, sampling point TF101	1,2-Dichloroethane 2980 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 13:15, sampling point TF101	1,1,1-Trichloroethane 2981 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 13:15, sampling point TF101	Carbon Tetrachloride 2982 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 13:15, sampling point TF101	1,2-Dichloropropane 2983 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 13:15, sampling point TF101	Trichloroethylene 2984 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 13:15, sampling point TF101	1,1,2-Trichloroethane 2985 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 13:15, sampling point TF101	Tetrachloroethylene 2987 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 13:15, sampling point TF101	Chlorobenzene 2989 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 13:15, sampling point TF101	Benzene 2990 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 13:15, sampling point TF101	Toluene 2991 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 13:15, sampling point TF101	Ethylbenzene 2992 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 13:15, sampling point TF101	Styrene 2996 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Collected Feb 6, 2025 13:30 Sampling point TF101 TF101 Sample type Routine Lab sample NI-250207-008 Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 6, 2025 13:30, sampling point TF101	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 6, 2025 13:30, sampling point TF101	Nitrate 1040 EPA method QC10107041C	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 6, 2025 13:30, sampling point TF101	Nitrite 1041 EPA method QC10107041C	Jan 1, 2025 – Dec 31, 2025

Collected
Aug 26, 2025 09:45

Sampling point
LC0007 Location withheld

Sample type
Routine

Lab sample
PB-250827-042

Laboratory
MSDH Lab

Monitoring period
Not recorded
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.025 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
Collected
Aug 26, 2025 09:00

Sampling point
LC0010 Location withheld

Sample type
Routine

Lab sample
PB-250827-041

Laboratory
MSDH Lab

Monitoring period
Not recorded
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0133 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.5 ug/l
Collected
Jul 22, 2025 10:50

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
TH-250723-001

Laboratory
MSDH Lab

Monitoring period
Jul 1, 2025 – Sep 30, 2025
- TTHM 2950 EPA method 524.2
  
  Result
  5.13 ug/l
Collected
Jul 22, 2025 10:50

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
HA-250723-001

Laboratory
MSDH Lab

Monitoring period
Jul 1, 2025 – Sep 30, 2025
- Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
  
  Result
  5.89 ug/l
Collected
Apr 29, 2025 13:30

Sampling point
TF101 TF101

Sample type
Routine

Lab sample
CN-250430-007

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2025 – Dec 31, 2025
- Cyanide 1024 EPA method QC10204001X
  
  Result
  Not detected below 0.015 mg/l Minimum Reporting Level
Collected
Apr 15, 2025 11:52

Sampling point
TF101 TF101

Sample type
Routine

Lab sample
IN-250416-001

Laboratory
MSDH Lab
- Arsenic 1005 EPA method 200.8
  
  Result
  0.0005 mg/l
  
  Monitoring period
  Jan 1, 2025 – Dec 31, 2025
- Barium 1010 EPA method 200.8
  
  Result
  0.0044 mg/l
  
  Monitoring period
  Jan 1, 2025 – Dec 31, 2025
- Cadmium 1015 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2025 – Dec 31, 2025
- Chromium 1020 EPA method 200.8
  
  Result
  0.0022 mg/l
  
  Monitoring period
  Jan 1, 2025 – Dec 31, 2025
- Fluoride 1025 EPA method QC 10-109-12-2-A
  
  Result
  0.404 mg/l
  
  Monitoring period
  Jan 1, 2025 – Dec 31, 2025
- Mercury 1035 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2025 – Dec 31, 2025
- Nickel 1036 EPA method 200.8
  
  Result
  0.0013 mg/l
  
  Monitoring period
  Not recorded
- Selenium 1045 EPA method 200.8
  
  Result
  Not detected below 0.0025 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2025 – Dec 31, 2025
- Antimony, Total 1074 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2025 – Dec 31, 2025
- Beryllium, Total 1075 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2025 – Dec 31, 2025
- Thallium, Total 1085 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2025 – Dec 31, 2025
Collected
Apr 15, 2025 11:44

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
HA-250416-001

Laboratory
MSDH Lab

Monitoring period
Apr 1, 2025 – Jun 30, 2025
- Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
  
  Result
  13.7 ug/l
Collected
Apr 15, 2025 11:43

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
TH-250416-001

Laboratory
MSDH Lab

Monitoring period
Apr 1, 2025 – Jun 30, 2025
- TTHM 2950 EPA method 524.2
  
  Result
  6.82 ug/l
Collected
Feb 11, 2025 13:15

Sampling point
TF101 TF101

Sample type
Routine

Lab sample
VO-250212-004

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2025 – Dec 31, 2025
- 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
  Not detected below 0.5 ug/l Minimum Reporting Level
- 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
Feb 6, 2025 13:30

Sampling point
TF101 TF101

Sample type
Routine

Lab sample
NI-250207-008

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2025 – Dec 31, 2025
- Nitrate-Nitrite 1038 EPA method QC10107041C
  
  Result
  Not detected below 0.1 mg/l Minimum Reporting Level
- Nitrate 1040 EPA method QC10107041C
  
  Result
  Not detected below 0.08 mg/l Minimum Reporting Level
- Nitrite 1041 EPA method QC10107041C
  
  Result
  Not detected below 0.02 mg/l Minimum Reporting Level

Routine (10).