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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

MS0550041 , Nicholson Water Association

20 of the 57 analytes this system has been tested for have been detected at least once, across 280 samples on record.

The other 37 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 280 samples on record, detections range from October 15, 2003 to November 19, 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 Nicholson 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 72 of 72 results Aug 9, 2007 Jun 25, 2025
Lead 1030 Inorganic Chemical 34 of 72 results Aug 9, 2007 Jun 25, 2025
Barium 1010 Inorganic Chemical 25 of 25 results Oct 15, 2003 Mar 19, 2025
Fluoride 1025 Inorganic Chemical 25 of 25 results Oct 15, 2003 Mar 19, 2025
TTHM 2950 Organic Chemical 19 of 19 results Jul 28, 2004 Nov 19, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 17 of 17 results Oct 4, 2004 Nov 19, 2025
Chloroform 2941 Organic Chemical 15 of 15 results Sep 6, 2007 Nov 19, 2025
Bromodichloromethane 2943 Organic Chemical 15 of 15 results Sep 6, 2007 Nov 19, 2025
Dibromochloromethane 2944 Organic Chemical 13 of 15 results Sep 6, 2007 Nov 19, 2025
Dichloroacetic Acid 2451 Organic Chemical 12 of 12 results Jun 22, 2010 Nov 19, 2025
Trichloroacetic Acid 2452 Organic Chemical 12 of 12 results Jun 22, 2010 Nov 19, 2025
Chromium 1020 Inorganic Chemical 12 of 25 results Oct 15, 2003 Apr 16, 2019
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 15 results Mar 12, 2012 Oct 10, 2012
Sulfate 1055 Inorganic Chemical 4 of 4 results Oct 15, 2003 Mar 15, 2004
Sodium 1052 Inorganic Chemical 3 of 3 results Sep 19, 2019 Sep 19, 2019
Xylenes, Total 2955 Organic Chemical 3 of 39 results Mar 2, 2011 Aug 11, 2014
Nickel 1036 Inorganic Chemical 3 of 25 results May 8, 2013 May 8, 2013
Cadmium 1015 Inorganic Chemical 2 of 25 results Apr 11, 2005 Apr 11, 2005
Selenium 1045 Inorganic Chemical 2 of 25 results Apr 11, 2005 Apr 11, 2005
Ethylbenzene 2992 Organic Chemical 1 of 39 results Mar 2, 2011 Mar 2, 2011

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 171–180 of 280 samples, newest first — collected August 7, 2012 to October 22, 2012. The summary above covers all 280.

74 results from the 10 samples listed here: 2 detected, 72 not detected. Across the whole record it is 294 of 1,677. 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 Nicholson Water Association, every result from 171 to 180 of 280 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
Oct 22, 2012 01:40
Sampling point
TF103 Treatmentplant T103
Sample type
Routine
Lab sample
121023-013VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2012 01:40, sampling point TF103 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2012 01:40, sampling point TF103 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2012 01:40, sampling point TF103 Xylenes, Total 2955 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2012 01:40, sampling point TF103 Dichloromethane 2964 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2012 01:40, sampling point TF103 O-Dichlorobenzene 2968 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2012 01:40, sampling point TF103 P-Dichlorobenzene 2969 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2012 01:40, sampling point TF103 Vinyl Chloride 2976 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2012 01:40, sampling point TF103 1,1-Dichloroethylene 2977 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2012 01:40, sampling point TF103 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2012 01:40, sampling point TF103 1,2-Dichloroethane 2980 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2012 01:40, sampling point TF103 1,1,1-Trichloroethane 2981 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2012 01:40, sampling point TF103 Carbon Tetrachloride 2982 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2012 01:40, sampling point TF103 1,2-Dichloropropane 2983 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2012 01:40, sampling point TF103 Trichloroethylene 2984 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2012 01:40, sampling point TF103 1,1,2-Trichloroethane 2985 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2012 01:40, sampling point TF103 Tetrachloroethylene 2987 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2012 01:40, sampling point TF103 Chlorobenzene 2989 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2012 01:40, sampling point TF103 Benzene 2990 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2012 01:40, sampling point TF103 Toluene 2991 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2012 01:40, sampling point TF103 Ethylbenzene 2992 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 22, 2012 01:40, sampling point TF103 Styrene 2996 EPA method 524.2 Oct 1, 2012 – Dec 31, 2012
Collected
Oct 10, 2012 12:35
Sampling point
TF103 Treatmentplant T103
Sample type
Routine
Lab sample
201301110366
Laboratory
Radiation Safety Engineering
Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 12:35, sampling point TF103 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.389 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 12:35, sampling point TF103 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.389 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 12:35, sampling point TF103 Radium-226 4020 EPA method 903.1 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.32 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 12:35, sampling point TF103 Radium-228 4030 EPA method 904.0 Oct 1, 2012 – Dec 31, 2012
Collected
Oct 10, 2012 12:45
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
201301110364
Laboratory
Radiation Safety Engineering
Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 12:45, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.351 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 12:45, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.351 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 12:45, sampling point TF101 Radium-226 4020 EPA method 903.1 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.34 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 12:45, sampling point TF101 Radium-228 4030 EPA method 904.0 Oct 1, 2012 – Dec 31, 2012
Collected
Oct 10, 2012 13:17
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
201301110363
Laboratory
Radiation Safety Engineering
0.8 pci/l , sample collected Oct 10, 2012 13:17, sampling point TF102 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.36 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 13:17, sampling point TF102 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.324 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 13:17, sampling point TF102 Radium-226 4020 EPA method 903.1 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.36 pci/l Minimum Reporting Level , sample collected Oct 10, 2012 13:17, sampling point TF102 Radium-228 4030 EPA method 904.0 Oct 1, 2012 – Dec 31, 2012
Collected
Oct 9, 2012 13:15
Sampling point
TF103 Treatmentplant T103
Sample type
Routine
Lab sample
121010-086
Laboratory
Radiation Safety Engineering
Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Oct 9, 2012 13:15, sampling point TF103 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.389 pci/l Minimum Reporting Level , sample collected Oct 9, 2012 13:15, sampling point TF103 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.389 pci/l Minimum Reporting Level , sample collected Oct 9, 2012 13:15, sampling point TF103 Radium-226 4020 EPA method 903.1 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.32 pci/l Minimum Reporting Level , sample collected Oct 9, 2012 13:15, sampling point TF103 Radium-228 4030 EPA method 904.0 Oct 1, 2012 – Dec 31, 2012
Collected
Oct 9, 2012 13:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
121010-084
Laboratory
Radiation Safety Engineering
Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Oct 9, 2012 13:00, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.351 pci/l Minimum Reporting Level , sample collected Oct 9, 2012 13:00, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.351 pci/l Minimum Reporting Level , sample collected Oct 9, 2012 13:00, sampling point TF101 Radium-226 4020 EPA method 903.1 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.34 pci/l Minimum Reporting Level , sample collected Oct 9, 2012 13:00, sampling point TF101 Radium-228 4030 EPA method 904.0 Oct 1, 2012 – Dec 31, 2012
Collected
Oct 9, 2012 12:35
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
121010-085
Laboratory
Radiation Safety Engineering
0.8 pci/l , sample collected Oct 9, 2012 12:35, sampling point TF102 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.36 pci/l Minimum Reporting Level , sample collected Oct 9, 2012 12:35, sampling point TF102 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.324 pci/l Minimum Reporting Level , sample collected Oct 9, 2012 12:35, sampling point TF102 Radium-226 4020 EPA method 903.1 Oct 1, 2012 – Dec 31, 2012
Not detected below 0.36 pci/l Minimum Reporting Level , sample collected Oct 9, 2012 12:35, sampling point TF102 Radium-228 4030 EPA method 904.0 Oct 1, 2012 – Dec 31, 2012
Collected
Aug 27, 2012 01:00
Sampling point
TF103 Treatmentplant T103
Sample type
Routine
Lab sample
120828-032VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 01:00, sampling point TF103 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 01:00, sampling point TF103 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 01:00, sampling point TF103 Xylenes, Total 2955 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 01:00, sampling point TF103 Dichloromethane 2964 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 01:00, sampling point TF103 O-Dichlorobenzene 2968 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 01:00, sampling point TF103 P-Dichlorobenzene 2969 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 01:00, sampling point TF103 Vinyl Chloride 2976 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 01:00, sampling point TF103 1,1-Dichloroethylene 2977 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 01:00, sampling point TF103 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 01:00, sampling point TF103 1,2-Dichloroethane 2980 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 01:00, sampling point TF103 1,1,1-Trichloroethane 2981 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 01:00, sampling point TF103 Carbon Tetrachloride 2982 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 01:00, sampling point TF103 1,2-Dichloropropane 2983 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 01:00, sampling point TF103 Trichloroethylene 2984 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 01:00, sampling point TF103 1,1,2-Trichloroethane 2985 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 01:00, sampling point TF103 Tetrachloroethylene 2987 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 01:00, sampling point TF103 Chlorobenzene 2989 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 01:00, sampling point TF103 Benzene 2990 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 01:00, sampling point TF103 Toluene 2991 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 01:00, sampling point TF103 Ethylbenzene 2992 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 27, 2012 01:00, sampling point TF103 Styrene 2996 EPA method 524.2 Jul 1, 2012 – Sep 30, 2012
Collected
Aug 7, 2012 12:37
Sampling point
TF103 Treatmentplant T103
Sample type
Routine
Lab sample
120808-087
Laboratory
Radiation Safety Engineering
Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Aug 7, 2012 12:37, sampling point TF103 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.389 pci/l Minimum Reporting Level , sample collected Aug 7, 2012 12:37, sampling point TF103 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.389 pci/l Minimum Reporting Level , sample collected Aug 7, 2012 12:37, sampling point TF103 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.32 pci/l Minimum Reporting Level , sample collected Aug 7, 2012 12:37, sampling point TF103 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Aug 7, 2012 13:20
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120808-085
Laboratory
Radiation Safety Engineering
Not detected below 0.4 pci/l Minimum Reporting Level , sample collected Aug 7, 2012 13:20, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.351 pci/l Minimum Reporting Level , sample collected Aug 7, 2012 13:20, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.351 pci/l Minimum Reporting Level , sample collected Aug 7, 2012 13:20, sampling point TF101 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.34 pci/l Minimum Reporting Level , sample collected Aug 7, 2012 13:20, sampling point TF101 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012

Routine (10).