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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

MS0780008 , Mt Zion Water Association

36 of the 73 analytes this system has been tested for have been detected at least once, across 210 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 210 samples on record, detections range from November 3, 2003 to March 31, 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 Mt Zion 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 31 of 31 results Jul 12, 2007 Aug 14, 2023
Fluoride 1025 Inorganic Chemical 23 of 26 results Nov 3, 2003 Mar 31, 2025
Barium 1010 Inorganic Chemical 22 of 22 results Nov 3, 2003 Mar 31, 2025
Lead 1030 Inorganic Chemical 19 of 31 results Jun 20, 2011 Aug 14, 2023
Chromium 1020 Inorganic Chemical 17 of 22 results Nov 3, 2003 Mar 31, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 15 of 15 results Mar 12, 2012 Oct 2, 2012
Nickel 1036 Inorganic Chemical 9 of 22 results Apr 5, 2004 Mar 31, 2025
TTHM 2950 Organic Chemical 8 of 8 results Sep 20, 2004 Mar 3, 2025
Sodium 1052 Inorganic Chemical 8 of 8 results Jul 20, 2006 Mar 20, 2023
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 7 of 8 results Sep 17, 2007 Mar 3, 2025
Selenium 1045 Inorganic Chemical 7 of 22 results Apr 5, 2004 Apr 14, 2008
Arsenic 1005 Inorganic Chemical 6 of 22 results Apr 5, 2004 Mar 31, 2025
Calcium 1016 Inorganic Chemical 4 of 4 results Jul 20, 2006 Sep 29, 2017
Chloride 1017 Inorganic Chemical 4 of 4 results Jul 20, 2006 Sep 29, 2017
Magnesium 1031 Inorganic Chemical 4 of 4 results Jul 20, 2006 Sep 29, 2017
Manganese 1032 Inorganic Chemical 4 of 4 results Jul 20, 2006 Sep 29, 2017
Potassium 1042 Inorganic Chemical 4 of 4 results Jul 20, 2006 Sep 29, 2017
Residue, Total, Filterable 1057 Water Quality 4 of 4 results Jul 20, 2006 Sep 29, 2017
Color 1905 Water Quality 4 of 4 results Jul 20, 2006 Sep 29, 2017
Hardness, Total (As Caco3) 1915 Water Quality 4 of 4 results Jul 20, 2006 Sep 29, 2017
Alkalinity, Total 1927 Water Quality 4 of 4 results Jul 20, 2006 Sep 29, 2017
Calculated Sodium NACA Water Quality 4 of 4 results Jul 20, 2006 Sep 29, 2017
PH, Field Result PHFD Water Quality 4 of 4 results Jul 20, 2006 Sep 29, 2017
Dichloroacetic Acid 2451 Organic Chemical 4 of 4 results Sep 17, 2007 Aug 29, 2016
Trichloroacetic Acid 2452 Organic Chemical 4 of 4 results Sep 17, 2007 Aug 29, 2016
Dibromoacetic Acid 2454 Organic Chemical 4 of 4 results Sep 17, 2007 Aug 29, 2016
Chloroform 2941 Organic Chemical 4 of 4 results Sep 17, 2007 Aug 29, 2016
Bromodichloromethane 2943 Organic Chemical 4 of 4 results Sep 17, 2007 Aug 29, 2016
Dibromochloromethane 2944 Organic Chemical 4 of 4 results Sep 17, 2007 Aug 29, 2016
Alkalinity, Caco3 Stability 1067 Water Quality 3 of 3 results Aug 25, 2009 Sep 29, 2017
Iron, Field Result FEFD Inorganic Chemical 3 of 4 results Jul 20, 2006 Sep 29, 2017
Iron 1028 Inorganic Chemical 2 of 4 results Sep 29, 2017 Sep 29, 2017
Carbon Dioxide 1901 Water Quality 2 of 2 results Jul 20, 2006 Aug 25, 2009
Xylenes, Total 2955 Organic Chemical 2 of 27 results Dec 11, 2006 Aug 20, 2007
Sulfate 1055 Inorganic Chemical 2 of 8 results Nov 3, 2003 Nov 3, 2003
PH 1925 Water Quality 1 of 1 result Jul 20, 2006 Jul 20, 2006

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 101–110 of 210 samples, newest first — collected May 21, 2012 to September 17, 2012. The summary above covers all 210.

48 results from the 10 samples listed here: 6 detected, 42 not detected. Across the whole record it is 255 of 1,264. 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 Mt Zion Water Association, every result from 101 to 110 of 210 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, 2012 12:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120919-001
Laboratory
Radiation Safety Engineering
0.5 pci/l , sample collected Sep 17, 2012 12:30, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.403 pci/l Minimum Reporting Level , sample collected Sep 17, 2012 12:30, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.403 pci/l Minimum Reporting Level , sample collected Sep 17, 2012 12:30, sampling point TF101 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.36 pci/l Minimum Reporting Level , sample collected Sep 17, 2012 12:30, sampling point TF101 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Sep 17, 2012 12:35
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120919-001RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 17, 2012 12:35, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Jul 1, 2012 – Sep 30, 2012
Collected
Aug 7, 2012 15:30
Sampling point
TF103 TF103
Sample type
Routine
Lab sample
120808-066
Laboratory
Radiation Safety Engineering
1.2 pci/l , sample collected Aug 7, 2012 15:30, sampling point TF103 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.39 pci/l Minimum Reporting Level , sample collected Aug 7, 2012 15:30, sampling point TF103 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.369 pci/l Minimum Reporting Level , sample collected Aug 7, 2012 15:30, sampling point TF103 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.39 pci/l Minimum Reporting Level , sample collected Aug 7, 2012 15:30, sampling point TF103 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Aug 7, 2012 13:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120808-065
Laboratory
Radiation Safety Engineering
0.9 pci/l , sample collected Aug 7, 2012 13:00, sampling point TF102 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.374 pci/l Minimum Reporting Level , sample collected Aug 7, 2012 13:00, sampling point TF102 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.374 pci/l Minimum Reporting Level , sample collected Aug 7, 2012 13:00, sampling point TF102 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.37 pci/l Minimum Reporting Level , sample collected Aug 7, 2012 13:00, sampling point TF102 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Aug 7, 2012 13:01
Sampling point
TF103 TF103
Sample type
Routine
Lab sample
120808-066RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 7, 2012 13:01, sampling point TF103 Combined Uranium 4006 EPA method 200.8 Jul 1, 2012 – Sep 30, 2012
Collected
Aug 7, 2012 13:30
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120808-065RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 7, 2012 13:30, sampling point TF102 Combined Uranium 4006 EPA method 200.8 Jul 1, 2012 – Sep 30, 2012
Collected
Jun 4, 2012 02:05
Sampling point
TF103 TF103
Sample type
Routine
Lab sample
120605-021VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2012 02:05, sampling point TF103 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2012 02:05, sampling point TF103 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2012 02:05, sampling point TF103 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2012 02:05, sampling point TF103 Dichloromethane 2964 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2012 02:05, sampling point TF103 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2012 02:05, sampling point TF103 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2012 02:05, sampling point TF103 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2012 02:05, sampling point TF103 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2012 02:05, sampling point TF103 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2012 02:05, sampling point TF103 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2012 02:05, sampling point TF103 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2012 02:05, sampling point TF103 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2012 02:05, sampling point TF103 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2012 02:05, sampling point TF103 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2012 02:05, sampling point TF103 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2012 02:05, sampling point TF103 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2012 02:05, sampling point TF103 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2012 02:05, sampling point TF103 Benzene 2990 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2012 02:05, sampling point TF103 Toluene 2991 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2012 02:05, sampling point TF103 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 4, 2012 02:05, sampling point TF103 Styrene 2996 EPA method 524.2 Jan 1, 2012 – Dec 31, 2012
Collected
May 21, 2012 13:10
Sampling point
TF103 TF103
Sample type
Routine
Lab sample
120522-077
Laboratory
Radiation Safety Engineering
1.2 pci/l , sample collected May 21, 2012 13:10, sampling point TF103 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.39 pci/l Minimum Reporting Level , sample collected May 21, 2012 13:10, sampling point TF103 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.369 pci/l Minimum Reporting Level , sample collected May 21, 2012 13:10, sampling point TF103 Radium-226 4020 EPA method 903.1 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.39 pci/l Minimum Reporting Level , sample collected May 21, 2012 13:10, sampling point TF103 Radium-228 4030 EPA method 904.0 Apr 1, 2012 – Jun 30, 2012
Collected
May 21, 2012 12:45
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
120522-076
Laboratory
Radiation Safety Engineering
0.9 pci/l , sample collected May 21, 2012 12:45, sampling point TF102 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.374 pci/l Minimum Reporting Level , sample collected May 21, 2012 12:45, sampling point TF102 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.374 pci/l Minimum Reporting Level , sample collected May 21, 2012 12:45, sampling point TF102 Radium-226 4020 EPA method 903.1 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.37 pci/l Minimum Reporting Level , sample collected May 21, 2012 12:45, sampling point TF102 Radium-228 4030 EPA method 904.0 Apr 1, 2012 – Jun 30, 2012
Collected
May 21, 2012 12:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
120522-117
Laboratory
Radiation Safety Engineering
0.5 pci/l , sample collected May 21, 2012 12:30, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.403 pci/l Minimum Reporting Level , sample collected May 21, 2012 12:30, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.403 pci/l Minimum Reporting Level , sample collected May 21, 2012 12:30, sampling point TF101 Radium-226 4020 EPA method 903.1 Apr 1, 2012 – Jun 30, 2012
Not detected below 0.36 pci/l Minimum Reporting Level , sample collected May 21, 2012 12:30, sampling point TF101 Radium-228 4030 EPA method 904.0 Apr 1, 2012 – Jun 30, 2012

Routine (10).