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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

MS0230063 , Standard Dedeaux Water Association

38 of the 71 analytes this system has been tested for have been detected at least once, across 419 samples on record.

The other 33 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 419 samples on record, detections range from February 7, 2005 to March 18, 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 Standard Dedeaux 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 182 of 182 results Jun 30, 2005 Jul 23, 2024
Lead 1030 Inorganic Chemical 72 of 182 results Jun 30, 2005 Jul 23, 2024
Barium 1010 Inorganic Chemical 23 of 23 results Mar 7, 2005 Feb 4, 2025
Fluoride 1025 Inorganic Chemical 23 of 25 results Mar 7, 2005 Feb 4, 2025
Chromium 1020 Inorganic Chemical 12 of 23 results Mar 7, 2005 Feb 4, 2025
Sodium 1052 Inorganic Chemical 11 of 11 results Nov 20, 2008 Jan 29, 2024
Nickel 1036 Inorganic Chemical 10 of 23 results Mar 7, 2005 Apr 7, 2014
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 15 results Mar 5, 2012 Oct 3, 2012
Xylenes, Total 2955 Organic Chemical 10 of 72 results Feb 21, 2006 Oct 18, 2010
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 9 of 9 results Jun 11, 2007 Mar 18, 2025
TTHM 2950 Organic Chemical 9 of 9 results Jun 11, 2007 Mar 18, 2025
Chloroform 2941 Organic Chemical 5 of 5 results Jun 11, 2007 Jul 23, 2018
Dichloroacetic Acid 2451 Organic Chemical 4 of 4 results Jun 23, 2008 Jul 23, 2018
Trichloroacetic Acid 2452 Organic Chemical 4 of 4 results Jun 23, 2008 Jul 23, 2018
Bromodichloromethane 2943 Organic Chemical 4 of 5 results Jun 23, 2008 Jul 23, 2018
Dibromochloromethane 2944 Organic Chemical 4 of 5 results Jun 23, 2008 Jul 23, 2018
Selenium 1045 Inorganic Chemical 4 of 23 results Mar 7, 2005 Nov 3, 2008
Calcium 1016 Inorganic Chemical 2 of 2 results Nov 20, 2008 Jul 20, 2017
Manganese 1032 Inorganic Chemical 2 of 2 results Nov 20, 2008 Jul 20, 2017
Potassium 1042 Inorganic Chemical 2 of 2 results Nov 20, 2008 Jul 20, 2017
Sulfate 1055 Inorganic Chemical 2 of 2 results Nov 20, 2008 Jul 20, 2017
Residue, Total, Filterable 1057 Water Quality 2 of 2 results Nov 20, 2008 Jul 20, 2017
Alkalinity, Caco3 Stability 1067 Water Quality 2 of 2 results Nov 20, 2008 Jul 20, 2017
Carbon Dioxide 1901 Water Quality 2 of 2 results Nov 20, 2008 Jul 20, 2017
Color 1905 Water Quality 2 of 2 results Nov 20, 2008 Jul 20, 2017
Hardness, Total (As Caco3) 1915 Water Quality 2 of 2 results Nov 20, 2008 Jul 20, 2017
Alkalinity, Total 1927 Water Quality 2 of 2 results Nov 20, 2008 Jul 20, 2017
Calculated Sodium NACA Water Quality 2 of 2 results Nov 20, 2008 Jul 20, 2017
PH, Field Result PHFD Water Quality 2 of 2 results Nov 20, 2008 Jul 20, 2017
Dibromoacetic Acid 2454 Organic Chemical 2 of 4 results Jul 17, 2012 Jun 22, 2015
Monobromoacetic Acid 2453 Organic Chemical 1 of 4 results Jul 23, 2018 Jul 23, 2018
Chloride 1017 Inorganic Chemical 1 of 2 results Jul 20, 2017 Jul 20, 2017
Iron 1028 Inorganic Chemical 1 of 2 results Jul 20, 2017 Jul 20, 2017
Magnesium 1031 Inorganic Chemical 1 of 2 results Jul 20, 2017 Jul 20, 2017
Monochloroacetic Acid 2450 Organic Chemical 1 of 4 results Jun 23, 2008 Jun 23, 2008
Arsenic 1005 Inorganic Chemical 1 of 23 results Apr 7, 2008 Apr 7, 2008
Ethylbenzene 2992 Organic Chemical 1 of 72 results Feb 21, 2006 Feb 21, 2006
Dichloromethane 2964 Organic Chemical 1 of 72 results Feb 7, 2005 Feb 7, 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 31–40 of 419 samples, newest first — collected January 29, 2024 to July 23, 2024. The summary above covers all 419.

37 results from the 10 samples listed here: 6 detected, 31 not detected. Across the whole record it is 430 of 2,516. 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 1 sampling point 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 Standard Dedeaux Water Association, every result from 31 to 40 of 419 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
Jul 23, 2024 06:30
Sampling point
LC0002 Location withheld
Sample type
Routine
Lab sample
PB-240724-091
Laboratory
MSDH Lab
0.0099 mg/l , sample collected Jul 23, 2024 06:30, sampling point LC0002 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 23, 2024 06:30, sampling point LC0002 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Mar 25, 2024 11:02
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-240326-019
Laboratory
MSDH Lab
8.15 ug/l , sample collected Mar 25, 2024 11:02, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2024 – Dec 31, 2024
Collected
Mar 25, 2024 11:05
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-240326-019
Laboratory
MSDH Lab
4.71 ug/l , sample collected Mar 25, 2024 11:05, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2024 – Dec 31, 2024
Collected
Jan 29, 2024 13:30
Sampling point
TF103
Sample type
Routine
Lab sample
NI-240130-010
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 29, 2024 13:30, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 29, 2024 13:30, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 29, 2024 13:30, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Jan 29, 2024 13:00
Sampling point
TF102
Sample type
Routine
Lab sample
NI-240130-009
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 29, 2024 13:00, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 29, 2024 13:00, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 29, 2024 13:00, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Jan 29, 2024 12:30
Sampling point
TF101
Sample type
Routine
Lab sample
NI-240130-008
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 29, 2024 12:30, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 29, 2024 12:30, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 29, 2024 12:30, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Jan 29, 2024 13:32
Sampling point
TF103
Sample type
Routine
Lab sample
NA-240130-006
Laboratory
MSDH Lab
55.3 mg/l , sample collected Jan 29, 2024 13:32, sampling point TF103 Sodium 1052 EPA method 200.7 Jan 1, 2022 – Dec 31, 2024
Collected
Jan 29, 2024 13:00
Sampling point
TF102
Sample type
Routine
Lab sample
NA-240130-007
Laboratory
MSDH Lab
56.4 mg/l , sample collected Jan 29, 2024 13:00, sampling point TF102 Sodium 1052 EPA method 200.7 Jan 1, 2022 – Dec 31, 2024
Collected
Jan 29, 2024 12:35
Sampling point
TF101
Sample type
Routine
Lab sample
NA-240130-008
Laboratory
MSDH Lab
56.8 mg/l , sample collected Jan 29, 2024 12:35, sampling point TF101 Sodium 1052 EPA method 200.7 Jan 1, 2022 – Dec 31, 2024
Collected
Jan 29, 2024 11:56
Sampling point
TF103
Sample type
Routine
Lab sample
VO-240130-003
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 29, 2024 11:56, 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 Jan 29, 2024 11:56, 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 Jan 29, 2024 11:56, 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 Jan 29, 2024 11:56, 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 Jan 29, 2024 11:56, 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 Jan 29, 2024 11:56, 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 Jan 29, 2024 11:56, 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 Jan 29, 2024 11:56, 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 Jan 29, 2024 11:56, 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 Jan 29, 2024 11:56, 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 Jan 29, 2024 11:56, 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 Jan 29, 2024 11:56, 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 Jan 29, 2024 11:56, 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 Jan 29, 2024 11:56, 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 Jan 29, 2024 11:56, 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 Jan 29, 2024 11:56, 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 Jan 29, 2024 11:56, 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 Jan 29, 2024 11:56, 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 Jan 29, 2024 11:56, 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 Jan 29, 2024 11:56, 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 Jan 29, 2024 11:56, sampling point TF103 Styrene 2996 EPA method 524.2 Jan 1, 2019 – Dec 31, 2024

Routine (10).