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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 221–230 of 256 samples, newest first — collected July 1, 1996 to September 17, 2003. The summary above covers all 256.

49 results from the 10 samples listed here: 15 detected, 34 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 221 to 230 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
Sep 17, 2003
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
030918-018IN
Laboratory
MSDH Lab
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 17, 2003, sampling point TF101 Arsenic 1005 EPA method 200.8 Not recorded
0.003 mg/l , sample collected Sep 17, 2003, sampling point TF101 Barium 1010 EPA method 200.8 Not recorded
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Sep 17, 2003, sampling point TF101 Cadmium 1015 EPA method 200.8 Not recorded
0.004 mg/l , sample collected Sep 17, 2003, sampling point TF101 Chromium 1020 EPA method 200.8 Not recorded
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Sep 17, 2003, sampling point TF101 Fluoride 1025 EPA method 300.0 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 17, 2003, sampling point TF101 Mercury 1035 EPA method 200.8 Not recorded
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Sep 17, 2003, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 17, 2003, sampling point TF101 Selenium 1045 EPA method 200.8 Not recorded
14.5 mg/l , sample collected Sep 17, 2003, sampling point TF101 Sulfate 1055 EPA method 300.0 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 17, 2003, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Not recorded
Not detected below 0.0003 mg/l Minimum Reporting Level , sample collected Sep 17, 2003, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 17, 2003, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Not recorded
Collected
Apr 25, 2002
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
020426-005VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 25, 2002, sampling point TF101 1,2,4-Trichlorobenzene 2378 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 25, 2002, sampling point TF101 Cis-1,2-Dichloroethylene 2380 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 25, 2002, sampling point TF101 Xylenes, Total 2955 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 25, 2002, sampling point TF101 Dichloromethane 2964 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 25, 2002, sampling point TF101 O-Dichlorobenzene 2968 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 25, 2002, sampling point TF101 P-Dichlorobenzene 2969 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 25, 2002, sampling point TF101 Vinyl Chloride 2976 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 25, 2002, sampling point TF101 1,1-Dichloroethylene 2977 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 25, 2002, sampling point TF101 Trans-1,2-Dichloroethylene 2979 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 25, 2002, sampling point TF101 1,2-Dichloroethane 2980 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 25, 2002, sampling point TF101 1,1,1-Trichloroethane 2981 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 25, 2002, sampling point TF101 Carbon Tetrachloride 2982 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 25, 2002, sampling point TF101 1,2-Dichloropropane 2983 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 25, 2002, sampling point TF101 Trichloroethylene 2984 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 25, 2002, sampling point TF101 1,1,2-Trichloroethane 2985 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 25, 2002, sampling point TF101 Tetrachloroethylene 2987 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 25, 2002, sampling point TF101 Chlorobenzene 2989 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 25, 2002, sampling point TF101 Benzene 2990 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 25, 2002, sampling point TF101 Toluene 2991 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 25, 2002, sampling point TF101 Ethylbenzene 2992 Not recorded
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 25, 2002, sampling point TF101 Styrene 2996 Not recorded
Collected
Aug 29, 2000
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
000830-127L
Laboratory
MSDH Lab
0.111 mg/l , sample collected Aug 29, 2000, sampling point DS000 Copper, Free 1022 Not recorded
0.001 mg/l , sample collected Aug 29, 2000, sampling point DS000 Lead 1030 Not recorded
Collected
Aug 29, 2000
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
000830-126L
Laboratory
MSDH Lab
0.218 mg/l , sample collected Aug 29, 2000, sampling point DS000 Copper, Free 1022 Not recorded
Not detected below 0.001 mg/l Method Detection Limit , sample collected Aug 29, 2000, sampling point DS000 Lead 1030 Not recorded
Collected
Aug 29, 2000
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
000830-124L
Laboratory
MSDH Lab
0.024 mg/l , sample collected Aug 29, 2000, sampling point DS000 Copper, Free 1022 Not recorded
0.001 mg/l , sample collected Aug 29, 2000, sampling point DS000 Lead 1030 Not recorded
Collected
Aug 29, 2000
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
000830-123L
Laboratory
MSDH Lab
0.056 mg/l , sample collected Aug 29, 2000, sampling point DS000 Copper, Free 1022 Not recorded
Not detected below 0.001 mg/l Method Detection Limit , sample collected Aug 29, 2000, sampling point DS000 Lead 1030 Not recorded
Collected
Nov 11, 1996
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
961111-002L
Laboratory
MSDH Lab
0.102 mg/l , sample collected Nov 11, 1996, sampling point DS000 Copper, Free 1022 Not recorded
0.008 mg/l , sample collected Nov 11, 1996, sampling point DS000 Lead 1030 Not recorded
Collected
Jul 1, 1996
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
960701-039L
Laboratory
MSDH Lab
Not detected below 0.02 mg/l Method Detection Limit , sample collected Jul 1, 1996, sampling point DS000 Copper, Free 1022 Not recorded
0.001 mg/l , sample collected Jul 1, 1996, sampling point DS000 Lead 1030 Not recorded
Collected
Jul 1, 1996
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
960701-038L
Laboratory
MSDH Lab
0.116 mg/l , sample collected Jul 1, 1996, sampling point DS000 Copper, Free 1022 Not recorded
0.007 mg/l , sample collected Jul 1, 1996, sampling point DS000 Lead 1030 Not recorded
Collected
Jul 1, 1996
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
960701-037L
Laboratory
MSDH Lab
Not detected below 0.02 mg/l Method Detection Limit , sample collected Jul 1, 1996, sampling point DS000 Copper, Free 1022 Not recorded
0.001 mg/l , sample collected Jul 1, 1996, sampling point DS000 Lead 1030 Not recorded

Routine (10).