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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

MS0260027 , West Holmes Water Association

22 of the 57 analytes this system has been tested for have been detected at least once, across 360 samples on record.

The other 35 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 360 samples on record, detections range from February 28, 1996 to November 3, 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 West Holmes Water Association, 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 152 of 215 results Sep 30, 1997 Jul 17, 2023
Lead 1030 Inorganic Chemical 96 of 215 results Feb 28, 1996 Jul 17, 2023
TTHM 2950 Organic Chemical 14 of 14 results Jun 7, 2004 Nov 3, 2025
Barium 1010 Inorganic Chemical 13 of 13 results Sep 17, 2003 Feb 5, 2024
Fluoride 1025 Inorganic Chemical 13 of 13 results Sep 17, 2003 Feb 5, 2024
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 11 of 12 results Sep 24, 2007 Nov 3, 2025
Chromium 1020 Inorganic Chemical 11 of 13 results Sep 17, 2003 Feb 5, 2024
Chloroform 2941 Organic Chemical 9 of 9 results Aug 8, 2007 Nov 3, 2025
Bromodichloromethane 2943 Organic Chemical 9 of 9 results Aug 8, 2007 Nov 3, 2025
Dichloroacetic Acid 2451 Organic Chemical 7 of 7 results Sep 24, 2007 Nov 3, 2025
Trichloroacetic Acid 2452 Organic Chemical 7 of 7 results Sep 24, 2007 Nov 3, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 10 results Dec 13, 2011 Jul 10, 2012
Xylenes, Total 2955 Organic Chemical 3 of 32 results Apr 28, 2008 Jan 25, 2010
Nitrate-Nitrite 1038 Inorganic Chemical 2 of 39 results Feb 10, 2025 Feb 10, 2025
Nitrate 1040 Inorganic Chemical 2 of 39 results Feb 10, 2025 Feb 10, 2025
Sodium 1052 Inorganic Chemical 2 of 2 results Feb 4, 2025 Feb 4, 2025
Monobromoacetic Acid 2453 Organic Chemical 2 of 7 results Jul 31, 2019 Aug 25, 2020
Selenium 1045 Inorganic Chemical 2 of 13 results Mar 15, 2005 Feb 6, 2006
Sulfate 1055 Inorganic Chemical 2 of 2 results Sep 17, 2003 Feb 9, 2004
Monochloroacetic Acid 2450 Organic Chemical 1 of 7 results Jul 31, 2019 Jul 31, 2019
Nickel 1036 Inorganic Chemical 1 of 13 results Apr 14, 2008 Apr 14, 2008
Cadmium 1015 Inorganic Chemical 1 of 13 results Mar 15, 2005 Mar 15, 2005

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 111–120 of 360 samples, newest first — collected July 9, 2012 to May 29, 2013. The summary above covers all 360.

75 results from the 10 samples listed here: 8 detected, 67 not detected. Across the whole record it is 365 of 1,527. 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 West Holmes Water Association, every result from 111 to 120 of 360 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
May 29, 2013 09:51
Sampling point
TF102 Treatment PLNT T102
Sample type
Routine
Lab sample
130530-006VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:51, sampling point TF102 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:51, sampling point TF102 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:51, sampling point TF102 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:51, sampling point TF102 Dichloromethane 2964 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:51, sampling point TF102 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:51, sampling point TF102 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:51, sampling point TF102 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:51, sampling point TF102 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:51, sampling point TF102 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:51, sampling point TF102 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:51, sampling point TF102 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:51, sampling point TF102 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:51, sampling point TF102 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:51, sampling point TF102 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:51, sampling point TF102 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:51, sampling point TF102 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:51, sampling point TF102 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:51, sampling point TF102 Benzene 2990 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:51, sampling point TF102 Toluene 2991 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:51, sampling point TF102 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:51, sampling point TF102 Styrene 2996 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Collected
May 29, 2013 09:12
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
130530-005VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:12, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:12, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:12, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:12, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:12, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:12, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:12, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:12, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:12, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:12, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:12, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:12, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:12, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:12, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:12, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:12, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:12, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:12, sampling point TF101 Benzene 2990 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:12, sampling point TF101 Toluene 2991 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:12, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 29, 2013 09:12, sampling point TF101 Styrene 2996 EPA method 524.2 Jan 1, 2013 – Dec 31, 2013
Collected
Feb 4, 2013 03:42
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
130205-024NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 4, 2013 03:42, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 4, 2013 03:42, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 4, 2013 03:42, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Collected
Feb 4, 2013 02:56
Sampling point
TF102 Treatment PLNT T102
Sample type
Routine
Lab sample
130205-023NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 4, 2013 02:56, sampling point TF102 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 4, 2013 02:56, sampling point TF102 Nitrate 1040 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 4, 2013 02:56, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2013 – Dec 31, 2013
Collected
Jul 23, 2012 03:15
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
120724-001TH
Laboratory
MSDH Lab
13.5 ug/l , sample collected Jul 23, 2012 03:15, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 23, 2012 03:15, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
2.79 ug/l , sample collected Jul 23, 2012 03:15, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 23, 2012 03:15, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
16.3 ug/l , sample collected Jul 23, 2012 03:15, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2011 – Dec 31, 2013
Collected
Jul 23, 2012 03:10
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
120724-001HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jul 23, 2012 03:10, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.01 mg/l , sample collected Jul 23, 2012 03:10, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.009 mg/l , sample collected Jul 23, 2012 03:10, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 23, 2012 03:10, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 23, 2012 03:10, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.02 mg/l , sample collected Jul 23, 2012 03:10, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2011 – Dec 31, 2013
Collected
Jul 10, 2012 13:35
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
201210090071
Laboratory
Radiation Safety Engineering
Not detected below 0.38 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 13:35, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.75 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 13:35, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.321 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 13:35, sampling point TF101 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.75 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 13:35, sampling point TF101 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 10, 2012 11:21
Sampling point
TF102 Treatment PLNT T102
Sample type
Routine
Lab sample
201211120246
Laboratory
Radiation Safety Engineering
0.6 pci/l , sample collected Jul 10, 2012 11:21, sampling point TF102 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.41 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 11:21, sampling point TF102 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.285 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 11:21, sampling point TF102 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.41 pci/l Minimum Reporting Level , sample collected Jul 10, 2012 11:21, sampling point TF102 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 9, 2012 14:41
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120710-046
Laboratory
Radiation Safety Engineering
Not detected below 0.38 pci/l Minimum Reporting Level , sample collected Jul 9, 2012 14:41, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.75 pci/l Minimum Reporting Level , sample collected Jul 9, 2012 14:41, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.321 pci/l Minimum Reporting Level , sample collected Jul 9, 2012 14:41, sampling point TF101 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.75 pci/l Minimum Reporting Level , sample collected Jul 9, 2012 14:41, sampling point TF101 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 9, 2012 13:40
Sampling point
TF102 Treatment PLNT T102
Sample type
Routine
Lab sample
120710-047
Laboratory
Radiation Safety Engineering
0.6 pci/l , sample collected Jul 9, 2012 13:40, sampling point TF102 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.41 pci/l Minimum Reporting Level , sample collected Jul 9, 2012 13:40, sampling point TF102 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.285 pci/l Minimum Reporting Level , sample collected Jul 9, 2012 13:40, sampling point TF102 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.41 pci/l Minimum Reporting Level , sample collected Jul 9, 2012 13:40, sampling point TF102 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012

Routine (10).