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 11–20 of 210 samples, newest first — collected March 20, 2023 to February 26, 2024. The summary above covers all 210.

39 results from the 10 samples listed here: 12 detected, 27 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.

We withheld the location of 5 sampling points below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.

Chemical and radiological sample results for Mt Zion Water Association, every result from 11 to 20 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 Feb 26, 2024 13:00 Sampling point TF103 TF103 Sample type Routine Lab sample VO-240227-006 Laboratory MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2024 13:00, sampling point TF103	1,2,4-Trichlorobenzene 2378 EPA method 524.2	Jan 1, 2019 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2024 13:00, sampling point TF103	Cis-1,2-Dichloroethylene 2380 EPA method 524.2	Jan 1, 2019 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2024 13:00, sampling point TF103	Xylenes, Total 2955 EPA method 524.2	Jan 1, 2019 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2024 13:00, sampling point TF103	Dichloromethane 2964 EPA method 524.2	Jan 1, 2019 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2024 13:00, sampling point TF103	O-Dichlorobenzene 2968 EPA method 524.2	Jan 1, 2019 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2024 13:00, sampling point TF103	P-Dichlorobenzene 2969 EPA method 524.2	Jan 1, 2019 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2024 13:00, sampling point TF103	Vinyl Chloride 2976 EPA method 524.2	Jan 1, 2019 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2024 13:00, sampling point TF103	1,1-Dichloroethylene 2977 EPA method 524.2	Jan 1, 2019 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2024 13:00, sampling point TF103	Trans-1,2-Dichloroethylene 2979 EPA method 524.2	Jan 1, 2019 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2024 13:00, sampling point TF103	1,2-Dichloroethane 2980 EPA method 524.2	Jan 1, 2019 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2024 13:00, sampling point TF103	1,1,1-Trichloroethane 2981 EPA method 524.2	Jan 1, 2019 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2024 13:00, sampling point TF103	Carbon Tetrachloride 2982 EPA method 524.2	Jan 1, 2019 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2024 13:00, sampling point TF103	1,2-Dichloropropane 2983 EPA method 524.2	Jan 1, 2019 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2024 13:00, sampling point TF103	Trichloroethylene 2984 EPA method 524.2	Jan 1, 2019 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2024 13:00, sampling point TF103	1,1,2-Trichloroethane 2985 EPA method 524.2	Jan 1, 2019 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2024 13:00, sampling point TF103	Tetrachloroethylene 2987 EPA method 524.2	Jan 1, 2019 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2024 13:00, sampling point TF103	Chlorobenzene 2989 EPA method 524.2	Jan 1, 2019 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2024 13:00, sampling point TF103	Benzene 2990 EPA method 524.2	Jan 1, 2019 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2024 13:00, sampling point TF103	Toluene 2991 EPA method 524.2	Jan 1, 2019 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2024 13:00, sampling point TF103	Ethylbenzene 2992 EPA method 524.2	Jan 1, 2019 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 26, 2024 13:00, sampling point TF103	Styrene 2996 EPA method 524.2	Jan 1, 2019 – Dec 31, 2024
Collected Aug 14, 2023 04:30 Sampling point LC0010 Location withheld Sample type Routine Lab sample PB-230815-074 Laboratory MSDH Lab
0.781 mg/l , sample collected Aug 14, 2023 04:30, sampling point LC0010	Copper, Free 1022 EPA method 200.8	Jan 1, 2021 – Dec 31, 2023
1.5 ug/l , sample collected Aug 14, 2023 04:30, sampling point LC0010	Lead 1030 EPA method 200.8	Jan 1, 2021 – Dec 31, 2023
Collected Aug 14, 2023 04:00 Sampling point LC0007 Location withheld Sample type Routine Lab sample PB-230815-073 Laboratory MSDH Lab
0.267 mg/l , sample collected Aug 14, 2023 04:00, sampling point LC0007	Copper, Free 1022 EPA method 200.8	Jan 1, 2021 – Dec 31, 2023
0.6 ug/l , sample collected Aug 14, 2023 04:00, sampling point LC0007	Lead 1030 EPA method 200.8	Jan 1, 2021 – Dec 31, 2023
Collected Aug 14, 2023 03:15 Sampling point LC0006 Location withheld Sample type Routine Lab sample PB-230815-072 Laboratory MSDH Lab
0.533 mg/l , sample collected Aug 14, 2023 03:15, sampling point LC0006	Copper, Free 1022 EPA method 200.8	Jan 1, 2021 – Dec 31, 2023
3 ug/l , sample collected Aug 14, 2023 03:15, sampling point LC0006	Lead 1030 EPA method 200.8	Jan 1, 2021 – Dec 31, 2023
Collected Aug 14, 2023 16:31 Sampling point LC0003 Location withheld Sample type Routine Lab sample PB-230815-071 Laboratory MSDH Lab
0.962 mg/l , sample collected Aug 14, 2023 16:31, sampling point LC0003	Copper, Free 1022 EPA method 200.8	Jan 1, 2021 – Dec 31, 2023
0.7 ug/l , sample collected Aug 14, 2023 16:31, sampling point LC0003	Lead 1030 EPA method 200.8	Jan 1, 2021 – Dec 31, 2023
Collected Aug 14, 2023 05:00 Sampling point LC0001 Location withheld Sample type Routine Lab sample PB-230815-070 Laboratory MSDH Lab
0.0839 mg/l , sample collected Aug 14, 2023 05:00, sampling point LC0001	Copper, Free 1022 EPA method 200.8	Jan 1, 2021 – Dec 31, 2023
0.5 ug/l , sample collected Aug 14, 2023 05:00, sampling point LC0001	Lead 1030 EPA method 200.8	Jan 1, 2021 – Dec 31, 2023
Collected Mar 20, 2023 12:30 Sampling point TF103 TF103 Sample type Routine Lab sample NA-230321-011 Laboratory MSDH Lab
131 mg/l , sample collected Mar 20, 2023 12:30, sampling point TF103	Sodium 1052 EPA method 200.7	Not recorded
Collected Mar 20, 2023 11:30 Sampling point TF101 Treatment Plant T101 Sample type Routine Lab sample NA-230321-010 Laboratory MSDH Lab
131 mg/l , sample collected Mar 20, 2023 11:30, sampling point TF101	Sodium 1052 EPA method 200.7	Not recorded
Collected Mar 20, 2023 12:30 Sampling point TF103 TF103 Sample type Routine Lab sample NI-230321-010 Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 20, 2023 12:30, sampling point TF103	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 20, 2023 12:30, sampling point TF103	Nitrate 1040 EPA method QC10107041C	Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 20, 2023 12:30, sampling point TF103	Nitrite 1041 EPA method QC10107041C	Jan 1, 2023 – Dec 31, 2023
Collected Mar 20, 2023 11:40 Sampling point TF101 Treatment Plant T101 Sample type Routine Lab sample NI-230321-009 Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 20, 2023 11:40, sampling point TF101	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 20, 2023 11:40, sampling point TF101	Nitrate 1040 EPA method QC10107041C	Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 20, 2023 11:40, sampling point TF101	Nitrite 1041 EPA method QC10107041C	Jan 1, 2023 – Dec 31, 2023

Collected
Feb 26, 2024 13:00

Sampling point
TF103 TF103

Sample type
Routine

Lab sample
VO-240227-006

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2019 – Dec 31, 2024
- 1,2,4-Trichlorobenzene 2378 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Cis-1,2-Dichloroethylene 2380 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Xylenes, Total 2955 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Dichloromethane 2964 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- O-Dichlorobenzene 2968 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- P-Dichlorobenzene 2969 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Vinyl Chloride 2976 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,1-Dichloroethylene 2977 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Trans-1,2-Dichloroethylene 2979 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,2-Dichloroethane 2980 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,1,1-Trichloroethane 2981 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Carbon Tetrachloride 2982 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,2-Dichloropropane 2983 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Trichloroethylene 2984 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,1,2-Trichloroethane 2985 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Tetrachloroethylene 2987 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Chlorobenzene 2989 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Benzene 2990 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Toluene 2991 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Ethylbenzene 2992 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Styrene 2996 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
Collected
Aug 14, 2023 04:30

Sampling point
LC0010 Location withheld

Sample type
Routine

Lab sample
PB-230815-074

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2021 – Dec 31, 2023
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.781 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  1.5 ug/l
Collected
Aug 14, 2023 04:00

Sampling point
LC0007 Location withheld

Sample type
Routine

Lab sample
PB-230815-073

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2021 – Dec 31, 2023
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.267 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.6 ug/l
Collected
Aug 14, 2023 03:15

Sampling point
LC0006 Location withheld

Sample type
Routine

Lab sample
PB-230815-072

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2021 – Dec 31, 2023
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.533 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  3 ug/l
Collected
Aug 14, 2023 16:31

Sampling point
LC0003 Location withheld

Sample type
Routine

Lab sample
PB-230815-071

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2021 – Dec 31, 2023
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.962 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.7 ug/l
Collected
Aug 14, 2023 05:00

Sampling point
LC0001 Location withheld

Sample type
Routine

Lab sample
PB-230815-070

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2021 – Dec 31, 2023
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0839 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.5 ug/l
Collected
Mar 20, 2023 12:30

Sampling point
TF103 TF103

Sample type
Routine

Lab sample
NA-230321-011

Laboratory
MSDH Lab

Monitoring period
Not recorded
- Sodium 1052 EPA method 200.7
  
  Result
  131 mg/l
Collected
Mar 20, 2023 11:30

Sampling point
TF101 Treatment Plant T101

Sample type
Routine

Lab sample
NA-230321-010

Laboratory
MSDH Lab

Monitoring period
Not recorded
- Sodium 1052 EPA method 200.7
  
  Result
  131 mg/l
Collected
Mar 20, 2023 12:30

Sampling point
TF103 TF103

Sample type
Routine

Lab sample
NI-230321-010

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2023 – Dec 31, 2023
- Nitrate-Nitrite 1038 EPA method QC10107041C
  
  Result
  Not detected below 0.1 mg/l Minimum Reporting Level
- Nitrate 1040 EPA method QC10107041C
  
  Result
  Not detected below 0.08 mg/l Minimum Reporting Level
- Nitrite 1041 EPA method QC10107041C
  
  Result
  Not detected below 0.02 mg/l Minimum Reporting Level
Collected
Mar 20, 2023 11:40

Sampling point
TF101 Treatment Plant T101

Sample type
Routine

Lab sample
NI-230321-009

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2023 – Dec 31, 2023
- Nitrate-Nitrite 1038 EPA method QC10107041C
  
  Result
  Not detected below 0.1 mg/l Minimum Reporting Level
- Nitrate 1040 EPA method QC10107041C
  
  Result
  Not detected below 0.08 mg/l Minimum Reporting Level
- Nitrite 1041 EPA method QC10107041C
  
  Result
  Not detected below 0.02 mg/l Minimum Reporting Level

Routine (10).