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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 51–60 of 210 samples, newest first — collected April 3, 2017 to April 9, 2018. The summary above covers all 210.

53 results from the 10 samples listed here: 41 detected, 12 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 51 to 60 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
Apr 9, 2018 14:10
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
180410-068NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 9, 2018 14:10, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 9, 2018 14:10, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 9, 2018 14:10, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Collected
Sep 29, 2017
Sampling point
WL003 Well W003
Sample type
Routine
Lab sample
171005-003PC
Laboratory
MSDH Lab
2.6002 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 Sep 29, 2017, sampling point WL003 Calcium 1016 EPA method 200.8 Not recorded
42.017 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 Sep 29, 2017, sampling point WL003 Chloride 1017 EPA method 300.0 Not recorded
0.274 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 Sep 29, 2017, sampling point WL003 Fluoride 1025 EPA method 300.0 Not recorded
0.036 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 Sep 29, 2017, sampling point WL003 Iron 1028 EPA method 200.8 Not recorded
0.6142 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 Sep 29, 2017, sampling point WL003 Magnesium 1031 EPA method 200.8 Not recorded
0.6142 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 Sep 29, 2017, sampling point WL003 Manganese 1032 EPA method 200.8 Not recorded
1.3281 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 Sep 29, 2017, sampling point WL003 Potassium 1042 EPA method 200.8 Not recorded
134.7562 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 Sep 29, 2017, sampling point WL003 Sodium 1052 EPA method 200.8 Not recorded
Not detected below 2 mg/l Minimum Reporting Level , sample collected Sep 29, 2017, sampling point WL003 Sulfate 1055 EPA method 300.0 Not recorded
328 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 Sep 29, 2017, sampling point WL003 Residue, Total, Filterable 1057 EPA method CALCUL LAB Not recorded
5.85 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 Sep 29, 2017, sampling point WL003 Alkalinity, Caco3 Stability 1067 EPA method 2320B Not recorded
30 units 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 Sep 29, 2017, sampling point WL003 Color 1905 EPA method 2120B Not recorded
9 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 Sep 29, 2017, sampling point WL003 Hardness, Total (As Caco3) 1915 EPA method CALCUL LAB Not recorded
252 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 Sep 29, 2017, sampling point WL003 Alkalinity, Total 1927 EPA method 2320B Not recorded
0.1 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 Sep 29, 2017, sampling point WL003 Iron, Field Result FEFD EPA method 3500AL-D Not recorded
139.5 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 Sep 29, 2017, sampling point WL003 Calculated Sodium NACA EPA method CALCUL LAB Not recorded
8.2 ph 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 Sep 29, 2017, sampling point WL003 PH, Field Result PHFD EPA method 3500AL-D Not recorded
Collected
Sep 29, 2017
Sampling point
WL001 Well W001
Sample type
Routine
Lab sample
171005-002PC
Laboratory
MSDH Lab
2.0961 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 Sep 29, 2017, sampling point WL001 Calcium 1016 EPA method 200.8 Not recorded
25.518 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 Sep 29, 2017, sampling point WL001 Chloride 1017 EPA method 300.0 Not recorded
0.292 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 Sep 29, 2017, sampling point WL001 Fluoride 1025 EPA method 300.0 Not recorded
0.077 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 Sep 29, 2017, sampling point WL001 Iron 1028 EPA method 200.8 Not recorded
0.4267 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 Sep 29, 2017, sampling point WL001 Magnesium 1031 EPA method 200.8 Not recorded
0.0045 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 Sep 29, 2017, sampling point WL001 Manganese 1032 EPA method 200.8 Not recorded
1.209 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 Sep 29, 2017, sampling point WL001 Potassium 1042 EPA method 200.8 Not recorded
127.1675 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 Sep 29, 2017, sampling point WL001 Sodium 1052 EPA method 200.8 Not recorded
Not detected below 2 mg/l Minimum Reporting Level , sample collected Sep 29, 2017, sampling point WL001 Sulfate 1055 EPA method 300.0 Not recorded
290 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 Sep 29, 2017, sampling point WL001 Residue, Total, Filterable 1057 EPA method CALCUL LAB Not recorded
7.01 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 Sep 29, 2017, sampling point WL001 Alkalinity, Caco3 Stability 1067 EPA method 2320B Not recorded
30 units 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 Sep 29, 2017, sampling point WL001 Color 1905 EPA method 2120B Not recorded
6.9 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 Sep 29, 2017, sampling point WL001 Hardness, Total (As Caco3) 1915 EPA method CALCUL LAB Not recorded
232 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 Sep 29, 2017, sampling point WL001 Alkalinity, Total 1927 EPA method 2320B Not recorded
0.2 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 Sep 29, 2017, sampling point WL001 Iron, Field Result FEFD EPA method 3500AL-D Not recorded
120.9 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 Sep 29, 2017, sampling point WL001 Calculated Sodium NACA EPA method CALCUL LAB Not recorded
8.2 ph 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 Sep 29, 2017, sampling point WL001 PH, Field Result PHFD EPA method 3500AL-D Not recorded
Collected
Jul 31, 2017 04:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170801-124PB
Laboratory
MSDH Lab
0.9596 mg/l , sample collected Jul 31, 2017 04:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0014 mg/l , sample collected Jul 31, 2017 04:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Jul 31, 2017 04:51
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170801-123PB
Laboratory
MSDH Lab
0.3783 mg/l , sample collected Jul 31, 2017 04:51, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.013 mg/l , sample collected Jul 31, 2017 04:51, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Jul 31, 2017 05:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170801-122PB
Laboratory
MSDH Lab
0.025 mg/l , sample collected Jul 31, 2017 05:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0008 mg/l , sample collected Jul 31, 2017 05:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Jul 31, 2017 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170801-121PB
Laboratory
MSDH Lab
0.0342 mg/l , sample collected Jul 31, 2017 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0013 mg/l , sample collected Jul 31, 2017 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Jul 31, 2017 05:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170801-120PB
Laboratory
MSDH Lab
0.552 mg/l , sample collected Jul 31, 2017 05:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 31, 2017 05:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Apr 3, 2017 03:00
Sampling point
TF103 TF103
Sample type
Routine
Lab sample
170404-084NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 3, 2017 03:00, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 3, 2017 03:00, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 3, 2017 03:00, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Collected
Apr 3, 2017 02:20
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
170404-022NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 3, 2017 02:20, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 3, 2017 02:20, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 3, 2017 02:20, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017

Routine (10).