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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

MS0060012 , Town of Merigold

21 of the 57 analytes this system has been tested for have been detected at least once, across 289 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 289 samples on record, detections range from December 2, 1993 to November 5, 2025. 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 Town of Merigold, 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 142 of 151 results Dec 2, 1993 Sep 17, 2025
Lead 1030 Inorganic Chemical 118 of 151 results Dec 2, 1993 Sep 17, 2025
Barium 1010 Inorganic Chemical 20 of 20 results Jun 18, 2002 Jan 21, 2025
Fluoride 1025 Inorganic Chemical 20 of 20 results Jun 18, 2002 Jan 21, 2025
Chromium 1020 Inorganic Chemical 13 of 20 results Jan 14, 2004 Jan 21, 2025
TTHM 2950 Organic Chemical 12 of 13 results May 3, 2004 Mar 5, 2024
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 10 of 14 results Jun 26, 2007 Mar 5, 2024
Dichloroacetic Acid 2451 Organic Chemical 8 of 8 results Jul 16, 2008 Nov 5, 2025
Trichloroacetic Acid 2452 Organic Chemical 7 of 8 results Jul 16, 2008 Jul 13, 2020
Dibromoacetic Acid 2454 Organic Chemical 7 of 8 results Jul 16, 2008 Jul 13, 2020
Chloroform 2941 Organic Chemical 7 of 8 results Jun 26, 2007 Jul 13, 2020
Bromodichloromethane 2943 Organic Chemical 7 of 8 results Jun 26, 2007 Jul 13, 2020
Dibromochloromethane 2944 Organic Chemical 7 of 8 results Jun 26, 2007 Jul 13, 2020
Selenium 1045 Inorganic Chemical 7 of 20 results Jan 14, 2004 Apr 27, 2011
Bromoform 2942 Organic Chemical 6 of 8 results Jul 16, 2008 Jul 13, 2020
Arsenic 1005 Inorganic Chemical 5 of 20 results Apr 27, 2011 Jan 21, 2025
Sodium 1052 Inorganic Chemical 4 of 4 results Sep 20, 2019 Oct 22, 2024
Nickel 1036 Inorganic Chemical 4 of 20 results Jan 30, 2006 May 3, 2022
Monochloroacetic Acid 2450 Organic Chemical 2 of 8 results Aug 6, 2014 Jul 13, 2020
Cyanide 1024 Inorganic Chemical 1 of 17 results Jun 13, 2011 Jun 13, 2011
Nitrate-Nitrite 1038 Inorganic Chemical 1 of 40 results May 3, 2004 May 3, 2004

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 289 samples, newest first — collected March 28, 2023 to September 17, 2025. The summary above covers all 289.

25 results from the 10 samples listed here: 10 detected, 15 not detected. Across the whole record it is 408 of 1,089. 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 Town of Merigold, every result from 11 to 20 of 289 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
Sep 17, 2025 09:00
Sampling point
LC0002 Location withheld
Sample type
Routine
Lab sample
PB-250918-077
Laboratory
MSDH Lab
0.428 mg/l , sample collected Sep 17, 2025 09:00, sampling point LC0002 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.5 ug/l , sample collected Sep 17, 2025 09:00, sampling point LC0002 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
May 6, 2025 14:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
CN-250507-002
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 6, 2025 14:00, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
Jan 21, 2025 15:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
IN-250122-001
Laboratory
MSDH Lab
0.0006 mg/l , sample collected Jan 21, 2025 15:00, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0065 mg/l , sample collected Jan 21, 2025 15:00, 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 21, 2025 15:00, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0005 mg/l , sample collected Jan 21, 2025 15:00, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.25 mg/l , sample collected Jan 21, 2025 15:00, 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 21, 2025 15:00, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 21, 2025 15:00, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Jan 21, 2025 15:00, 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 21, 2025 15:00, 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 21, 2025 15:00, 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 21, 2025 15:00, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Jan 21, 2025 14:49
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-250122-007
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 21, 2025 14:49, 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 21, 2025 14:49, 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 21, 2025 14:49, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Oct 22, 2024 15:20
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NA-241023-009
Laboratory
MSDH Lab
152 mg/l , sample collected Oct 22, 2024 15:20, sampling point TF102 Sodium 1052 EPA method 200.7 Jan 1, 2022 – Dec 31, 2024
Collected
Mar 5, 2024 13:25
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-240306-003
Laboratory
MSDH Lab
4.05 ug/l , sample collected Mar 5, 2024 13:25, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
Collected
Mar 5, 2024 13:20
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-240306-003
Laboratory
MSDH Lab
2.12 ug/l , sample collected Mar 5, 2024 13:20, sampling point MRT000 TTHM 2950 EPA method 524.2 Not recorded
Collected
Jan 10, 2024 12:10
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-240111-048
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 10, 2024 12:10, 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 10, 2024 12:10, 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 10, 2024 12:10, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Mar 28, 2023 14:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-230329-003
Laboratory
MSDH Lab
1.6 ug/l , sample collected Mar 28, 2023 14:00, sampling point MRT000 TTHM 2950 EPA method 524.2 Not recorded
Collected
Mar 28, 2023 14:10
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-230329-003
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 28, 2023 14:10, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded

Routine (10).