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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

MS0070018 , Slate Springs Water Assn

32 of the 71 analytes this system has been tested for have been detected at least once, across 252 samples on record.

The other 39 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 252 samples on record, detections range from September 29, 1993 to July 25, 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 Slate Springs Water Assn, 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 93 of 108 results Sep 29, 1993 Jul 25, 2026
Lead 1030 Inorganic Chemical 73 of 108 results Sep 29, 1993 Jul 25, 2026
Fluoride 1025 Inorganic Chemical 24 of 24 results Jun 25, 2002 Jul 19, 2026
Arsenic 1005 Inorganic Chemical 23 of 23 results Jun 25, 2002 Jun 14, 2026
Barium 1010 Inorganic Chemical 23 of 23 results Jun 25, 2002 Jun 14, 2026
Selenium 1045 Inorganic Chemical 20 of 23 results Jun 25, 2002 Jun 14, 2026
Chromium 1020 Inorganic Chemical 17 of 23 results Jun 25, 2002 Jan 15, 2025
Nickel 1036 Inorganic Chemical 10 of 22 results Jan 24, 2006 Jan 15, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Dec 14, 2011 Jul 10, 2012
Sodium 1052 Inorganic Chemical 8 of 8 results Sep 3, 2013 Jun 14, 2026
TTHM 2950 Organic Chemical 6 of 8 results Aug 8, 2007 Sep 12, 2022
Bromoform 2942 Organic Chemical 3 of 5 results Jul 11, 2011 Sep 7, 2017
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 3 of 8 results Jun 28, 2007 Aug 11, 2014
Dichloroacetic Acid 2451 Organic Chemical 1 of 4 results Aug 11, 2014 Aug 11, 2014
Dibromoacetic Acid 2454 Organic Chemical 1 of 4 results Aug 11, 2014 Aug 11, 2014
Chloroform 2941 Organic Chemical 1 of 5 results Aug 11, 2014 Aug 11, 2014
Calcium 1016 Inorganic Chemical 1 of 1 result Sep 3, 2013 Sep 3, 2013
Chloride 1017 Inorganic Chemical 1 of 1 result Sep 3, 2013 Sep 3, 2013
Iron 1028 Inorganic Chemical 1 of 1 result Sep 3, 2013 Sep 3, 2013
Magnesium 1031 Inorganic Chemical 1 of 1 result Sep 3, 2013 Sep 3, 2013
Manganese 1032 Inorganic Chemical 1 of 1 result Sep 3, 2013 Sep 3, 2013
Potassium 1042 Inorganic Chemical 1 of 1 result Sep 3, 2013 Sep 3, 2013
Sulfate 1055 Inorganic Chemical 1 of 5 results Sep 3, 2013 Sep 3, 2013
Residue, Total, Filterable 1057 Water Quality 1 of 1 result Sep 3, 2013 Sep 3, 2013
Carbon Dioxide 1901 Water Quality 1 of 1 result Sep 3, 2013 Sep 3, 2013
Color 1905 Water Quality 1 of 1 result Sep 3, 2013 Sep 3, 2013
Hardness, Total (As Caco3) 1915 Water Quality 1 of 1 result Sep 3, 2013 Sep 3, 2013
Alkalinity, Total 1927 Water Quality 1 of 1 result Sep 3, 2013 Sep 3, 2013
Iron, Field Result FEFD Inorganic Chemical 1 of 1 result Sep 3, 2013 Sep 3, 2013
Calculated Sodium NACA Water Quality 1 of 1 result Sep 3, 2013 Sep 3, 2013
PH, Field Result PHFD Water Quality 1 of 1 result Sep 3, 2013 Sep 3, 2013
Dibromochloromethane 2944 Organic Chemical 1 of 5 results Jul 11, 2011 Jul 11, 2011

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 11–20 of 252 samples, newest first — collected June 19, 2023 to February 11, 2025. The summary above covers all 252.

39 results from the 10 samples listed here: 14 detected, 25 not detected. Across the whole record it is 332 of 1,050. 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 Slate Springs Water Assn, every result from 11 to 20 of 252 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
Feb 11, 2025 14:30
Sampling point
SMD Location withheld
Sample type
Routine
Lab sample
TH-250212-012
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 11, 2025 14:30, sampling point SMD TTHM 2950 EPA method 524.2 Jan 1, 2023 – Dec 31, 2025
Collected
Jan 15, 2025 13:35
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
IN-250116-009
Laboratory
MSDH Lab
0.0054 mg/l , sample collected Jan 15, 2025 13:35, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.135 mg/l , sample collected Jan 15, 2025 13:35, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 13:35, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0011 mg/l , sample collected Jan 15, 2025 13:35, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.235 mg/l , sample collected Jan 15, 2025 13:35, sampling point TF102 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 13:35, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0011 mg/l , sample collected Jan 15, 2025 13:35, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 13:35, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 13:35, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 13:35, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 13:35, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Jan 15, 2025 13:15
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
IN-250116-010
Laboratory
MSDH Lab
0.0055 mg/l , sample collected Jan 15, 2025 13:15, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.138 mg/l , sample collected Jan 15, 2025 13:15, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 13:15, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0011 mg/l , sample collected Jan 15, 2025 13:15, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.244 mg/l , sample collected Jan 15, 2025 13:15, sampling point TF101 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 13:15, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0011 mg/l , sample collected Jan 15, 2025 13:15, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 13:15, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 13:15, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 13:15, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 13:15, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Jan 15, 2025 14:35
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-250116-012
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 14:35, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 14:35, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 14:35, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Jan 15, 2025 14:10
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-250116-011
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 15, 2025 14:10, 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 Jan 15, 2025 14:10, 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 Jan 15, 2025 14:10, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Oct 22, 2024 14:10
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NA-241023-011
Laboratory
MSDH Lab
173 mg/l , sample collected Oct 22, 2024 14:10, sampling point TF102 Sodium 1052 EPA method 200.7 Jan 1, 2022 – Dec 31, 2024
Collected
Oct 22, 2024 13:50
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NA-241023-010
Laboratory
MSDH Lab
180 mg/l , sample collected Oct 22, 2024 13:50, sampling point TF101 Sodium 1052 EPA method 200.7 Jan 1, 2022 – Dec 31, 2024
Collected
Jan 9, 2024 15:10
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-240110-017
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 9, 2024 15:10, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 9, 2024 15:10, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 9, 2024 15:10, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Jan 9, 2024 14:55
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-240110-018
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 9, 2024 14:55, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 9, 2024 14:55, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 9, 2024 14:55, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Jun 19, 2023 06:30
Sampling point
LC0007 Location withheld
Sample type
Routine
Lab sample
PB-230621-005
Laboratory
MSDH Lab
0.169 mg/l , sample collected Jun 19, 2023 06:30, sampling point LC0007 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.7 ug/l , sample collected Jun 19, 2023 06:30, sampling point LC0007 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023

Routine (10).