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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

MS0260014 , South Holmes W/A #1

21 of the 57 analytes this system has been tested for have been detected at least once, across 256 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 256 samples on record, detections range from November 10, 1993 to February 10, 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 South Holmes W/A #1, 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 84 of 96 results Nov 10, 1993 Jul 11, 2023
Lead 1030 Inorganic Chemical 45 of 96 results Nov 10, 1993 Jul 11, 2023
Barium 1010 Inorganic Chemical 20 of 20 results Sep 17, 2003 Feb 11, 2025
Fluoride 1025 Inorganic Chemical 12 of 20 results Mar 14, 2005 Feb 11, 2025
Nitrite 1041 Inorganic Chemical 9 of 50 results Aug 10, 2005 Feb 10, 2026
Sodium 1052 Inorganic Chemical 9 of 9 results Sep 25, 2019 Feb 6, 2024
Chromium 1020 Inorganic Chemical 9 of 20 results Sep 17, 2003 Oct 30, 2018
Nitrate-Nitrite 1038 Inorganic Chemical 8 of 50 results Feb 14, 2017 Feb 11, 2025
TTHM 2950 Organic Chemical 8 of 13 results Jun 7, 2004 Nov 5, 2024
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 6 of 13 results Aug 6, 2007 Nov 5, 2024
Chloroform 2941 Organic Chemical 5 of 10 results Sep 22, 2008 Nov 5, 2024
Nitrate 1040 Inorganic Chemical 5 of 50 results Feb 14, 2017 Mar 19, 2019
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 10 results Dec 6, 2011 Jul 11, 2012
Dichloroacetic Acid 2451 Organic Chemical 4 of 9 results Jun 17, 2013 Nov 5, 2024
Trichloroacetic Acid 2452 Organic Chemical 4 of 9 results Jun 17, 2013 Nov 5, 2024
Bromodichloromethane 2943 Organic Chemical 4 of 10 results Sep 22, 2008 Nov 5, 2024
Selenium 1045 Inorganic Chemical 2 of 20 results Mar 14, 2005 Feb 6, 2006
Sulfate 1055 Inorganic Chemical 2 of 2 results Sep 17, 2003 Feb 9, 2004
Dibromochloromethane 2944 Organic Chemical 1 of 10 results Aug 7, 2024 Aug 7, 2024
Monochloroacetic Acid 2450 Organic Chemical 1 of 9 results Aug 1, 2018 Aug 1, 2018
Nickel 1036 Inorganic Chemical 1 of 20 results Apr 14, 2008 Apr 14, 2008

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 31–40 of 256 samples, newest first — collected October 19, 2022 to July 11, 2023. The summary above covers all 256.

21 results from the 10 samples listed here: 6 detected, 15 not detected. Across the whole record it is 244 of 1,194. 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 5 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 South Holmes W/A #1, every result from 31 to 40 of 256 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
Jul 11, 2023 08:20
Sampling point
LC0005 Location withheld
Sample type
Routine
Lab sample
PB-230712-067
Laboratory
MSDH Lab
0.0019 mg/l , sample collected Jul 11, 2023 08:20, sampling point LC0005 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 11, 2023 08:20, sampling point LC0005 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 11, 2023 05:15
Sampling point
LC0006 Location withheld
Sample type
Routine
Lab sample
PB-230712-063
Laboratory
MSDH Lab
0.0052 mg/l , sample collected Jul 11, 2023 05:15, sampling point LC0006 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 11, 2023 05:15, sampling point LC0006 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 11, 2023 07:00
Sampling point
LC0011 Location withheld
Sample type
Routine
Lab sample
PB-230712-062
Laboratory
MSDH Lab
0.0165 mg/l , sample collected Jul 11, 2023 07:00, sampling point LC0011 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.6 ug/l , sample collected Jul 11, 2023 07:00, sampling point LC0011 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 11, 2023 09:00
Sampling point
LC0007 Location withheld
Sample type
Routine
Lab sample
PB-230712-068
Laboratory
MSDH Lab
0.0014 mg/l , sample collected Jul 11, 2023 09:00, sampling point LC0007 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 11, 2023 09:00, sampling point LC0007 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 11, 2023 07:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-230712-065
Laboratory
MSDH Lab
0.0027 mg/l , sample collected Jul 11, 2023 07:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 11, 2023 07:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jan 31, 2023 13:00
Sampling point
TF103 Treatment Plant TF103
Sample type
Routine
Lab sample
NI-230131-028
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 31, 2023 13:00, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 31, 2023 13:00, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 31, 2023 13:00, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Jan 31, 2023 14:10
Sampling point
TF102 Treatment PLNT T102
Sample type
Routine
Lab sample
NI-230131-030
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 31, 2023 14:10, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 31, 2023 14:10, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 31, 2023 14:10, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Jan 31, 2023 13:35
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-230131-029
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 31, 2023 13:35, 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 Jan 31, 2023 13:35, 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 Jan 31, 2023 13:35, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Oct 19, 2022 14:00
Sampling point
SMD Location withheld
Sample type
Routine
Lab sample
HA-221020-018
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 19, 2022 14:00, sampling point SMD Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2020 – Dec 31, 2022
Collected
Oct 19, 2022 14:15
Sampling point
SMD Location withheld
Sample type
Routine
Lab sample
TH-221020-018
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 19, 2022 14:15, sampling point SMD TTHM 2950 EPA method 524.2 Jan 1, 2020 – Dec 31, 2022

Routine (10).