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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 101–110 of 144 samples, newest first — collected October 20, 2020 to April 27, 2021. The summary above covers all 144.

23 results from the 10 samples listed here: 7 detected, 16 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.

Chemical and radiological sample results for Silver Slipper Casino & Hotel, every result from 101 to 110 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
Apr 27, 2021 13:00
Sampling point
TF101 TF101
Sample type
Routine
Lab sample
NI-210428-009
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 27, 2021 13:00, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 27, 2021 13:00, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 27, 2021 13:00, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Collected
Jan 20, 2021 14:00
Sampling point
TF101 TF101
Sample type
Routine
Lab sample
NI-210121-075
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 20, 2021 14:00, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 20, 2021 14:00, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 20, 2021 14:00, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Collected
Dec 1, 2020 14:00
Sampling point
TF101 TF101
Sample type
Routine
Lab sample
NI-201202-014
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Dec 1, 2020 14:00, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Oct 1, 2020 – Dec 31, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Dec 1, 2020 14:00, sampling point TF101 Nitrate 1040 EPA method QC10107041C Oct 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Dec 1, 2020 14:00, sampling point TF101 Nitrite 1041 EPA method QC10107041C Oct 1, 2020 – Dec 31, 2020
Collected
Oct 20, 2020
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
201021-020PB
Laboratory
MSDH Lab
0.0193 mg/l , sample collected Oct 20, 2020, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 20, 2020, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
Collected
Oct 20, 2020
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
201021-024PB
Laboratory
MSDH Lab
0.0087 mg/l , sample collected Oct 20, 2020, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 20, 2020, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
Collected
Oct 20, 2020 12:55
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
201021-025PB
Laboratory
MSDH Lab
0.0078 mg/l , sample collected Oct 20, 2020 12:55, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 20, 2020 12:55, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
Collected
Oct 20, 2020 12:58
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
201021-023PB
Laboratory
MSDH Lab
0.0058 mg/l , sample collected Oct 20, 2020 12:58, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 20, 2020 12:58, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
Collected
Oct 20, 2020 11:50
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
201021-022PB
Laboratory
MSDH Lab
0.0083 mg/l , sample collected Oct 20, 2020 11:50, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 20, 2020 11:50, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
Collected
Oct 20, 2020 12:53
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
201021-021PB
Laboratory
MSDH Lab
0.0073 mg/l , sample collected Oct 20, 2020 12:53, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 20, 2020 12:53, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
Collected
Oct 20, 2020 11:38
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
201021-019PB
Laboratory
MSDH Lab
0.0068 mg/l , sample collected Oct 20, 2020 11:38, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 20, 2020 11:38, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020

Routine (10).