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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 191–200 of 256 samples, newest first — collected July 24, 2007 to April 14, 2008. The summary above covers all 256.

21 results from the 10 samples listed here: 11 detected, 10 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.

Chemical and radiological sample results for South Holmes W/A #1, every result from 191 to 200 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
Apr 14, 2008
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
080415-033CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Apr 14, 2008, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
Aug 6, 2007
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
070807-002HA
Laboratory
MSDH Lab
0.0015 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Aug 6, 2007, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2005 – Dec 31, 2007
Collected
Aug 6, 2007
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
070807-002TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 6, 2007, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 6, 2007, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 6, 2007, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 6, 2007, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
0 This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Aug 6, 2007, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2005 – Dec 31, 2007
Collected
Jul 24, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070725-365PB
Laboratory
MSDH Lab
0.0158 mg/l , sample collected Jul 24, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 24, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 24, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070725-364PB
Laboratory
MSDH Lab
0.0249 mg/l , sample collected Jul 24, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 24, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 24, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070725-354PB
Laboratory
MSDH Lab
0.1499 mg/l , sample collected Jul 24, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0011 mg/l , sample collected Jul 24, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 24, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070725-352PB
Laboratory
MSDH Lab
0.1495 mg/l , sample collected Jul 24, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 24, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 24, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070725-345PB
Laboratory
MSDH Lab
0.0396 mg/l , sample collected Jul 24, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 24, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 24, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070725-343PB
Laboratory
MSDH Lab
0.0704 mg/l , sample collected Jul 24, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 24, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 24, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070725-310PB
Laboratory
MSDH Lab
0.0441 mg/l , sample collected Jul 24, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0008 mg/l , sample collected Jul 24, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008

Routine (10).