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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

MS0530006 , Clayton Village W/A #1-East

39 of the 73 analytes this system has been tested for have been detected at least once, across 364 samples on record.

The other 34 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 364 samples on record, detections range from October 13, 2003 to March 24, 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 Clayton Village W/A #1-East, 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 70 of 70 results Sep 9, 2007 Sep 14, 2023
Barium 1010 Inorganic Chemical 41 of 41 results Oct 13, 2003 Mar 24, 2025
Fluoride 1025 Inorganic Chemical 40 of 46 results Oct 13, 2003 Mar 24, 2025
Lead 1030 Inorganic Chemical 27 of 70 results Sep 9, 2007 Sep 14, 2023
Chromium 1020 Inorganic Chemical 21 of 41 results Oct 13, 2003 Apr 17, 2019
Sodium 1052 Inorganic Chemical 15 of 15 results Oct 1, 2010 Feb 27, 2025
Gross Alpha Particle Activity 4109 Radionuclide 14 of 16 results Sep 6, 2011 Sep 20, 2012
Nickel 1036 Inorganic Chemical 9 of 41 results Mar 15, 2004 Apr 17, 2019
Combined Radium (-226 & -228) 4010 Radionuclide 8 of 14 results Sep 6, 2011 Apr 2, 2012
Radium-226 4020 Radionuclide 8 of 14 results Sep 6, 2011 Apr 2, 2012
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 7 of 18 results Aug 28, 2007 Jun 21, 2023
Calcium 1016 Inorganic Chemical 6 of 6 results Oct 1, 2010 Oct 19, 2017
Chloride 1017 Inorganic Chemical 6 of 6 results Oct 1, 2010 Oct 19, 2017
Iron 1028 Inorganic Chemical 6 of 6 results Oct 1, 2010 Oct 19, 2017
Magnesium 1031 Inorganic Chemical 6 of 6 results Oct 1, 2010 Oct 19, 2017
Manganese 1032 Inorganic Chemical 6 of 6 results Oct 1, 2010 Oct 19, 2017
Potassium 1042 Inorganic Chemical 6 of 6 results Oct 1, 2010 Oct 19, 2017
Residue, Total, Filterable 1057 Water Quality 6 of 6 results Oct 1, 2010 Oct 19, 2017
Color 1905 Water Quality 6 of 6 results Oct 1, 2010 Oct 19, 2017
Hardness, Total (As Caco3) 1915 Water Quality 6 of 6 results Oct 1, 2010 Oct 19, 2017
Alkalinity, Total 1927 Water Quality 6 of 6 results Oct 1, 2010 Oct 19, 2017
Iron, Field Result FEFD Inorganic Chemical 6 of 6 results Oct 1, 2010 Oct 19, 2017
Calculated Sodium NACA Water Quality 6 of 6 results Oct 1, 2010 Oct 19, 2017
PH, Field Result PHFD Water Quality 6 of 6 results Oct 1, 2010 Oct 19, 2017
TTHM 2950 Organic Chemical 5 of 18 results Jul 19, 2004 Mar 27, 2024
Arsenic 1005 Inorganic Chemical 5 of 41 results Jan 25, 2010 Oct 13, 2022
Carbon Dioxide 1901 Water Quality 5 of 5 results Oct 1, 2010 Oct 19, 2017
Selenium 1045 Inorganic Chemical 4 of 41 results Apr 4, 2005 Jan 25, 2010
Alkalinity, Caco3 Stability 1067 Water Quality 3 of 3 results Oct 1, 2010 Oct 19, 2017
Xylenes, Total 2955 Organic Chemical 3 of 60 results Aug 18, 2004 Aug 15, 2012
Dibromochloromethane 2944 Organic Chemical 2 of 13 results Jul 6, 2010 Mar 27, 2024
Ethylbenzene 2992 Organic Chemical 2 of 60 results Aug 18, 2004 Aug 18, 2004
Chloroform 2941 Organic Chemical 1 of 13 results Mar 27, 2024 Mar 27, 2024
Bromodichloromethane 2943 Organic Chemical 1 of 13 results Mar 27, 2024 Mar 27, 2024
Monobromoacetic Acid 2453 Organic Chemical 1 of 12 results Sep 22, 2020 Sep 22, 2020
Monochloroacetic Acid 2450 Organic Chemical 1 of 12 results Dec 20, 2016 Dec 20, 2016
Bromoform 2942 Organic Chemical 1 of 13 results Jul 6, 2010 Jul 6, 2010
Thallium, Total 1085 Inorganic Chemical 1 of 41 results Jan 19, 2010 Jan 19, 2010
Sulfate 1055 Inorganic Chemical 1 of 14 results Oct 13, 2003 Oct 13, 2003

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 61–70 of 364 samples, newest first — collected September 22, 2020 to October 14, 2021. The summary above covers all 364.

62 results from the 10 samples listed here: 0 detected, 62 not detected. Across the whole record it is 374 of 2,485. 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 Clayton Village W/A #1-East, every result from 61 to 70 of 364 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 14, 2021 08:52
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
RU-211015-014
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 14, 2021 08:52, sampling point TF104 Combined Uranium 4006 EPA method 200.8 Jan 1, 2013 – Dec 31, 2021
Collected
Oct 14, 2021 10:13
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
RU-211015-013
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 14, 2021 10:13, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Jan 1, 2013 – Dec 31, 2021
Collected
Oct 14, 2021 10:44
Sampling point
ST060 Tank S060
Sample type
Routine
Lab sample
RU-211015-012
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 14, 2021 10:44, sampling point ST060 Combined Uranium 4006 EPA method 200.8 Jan 1, 2013 – Dec 31, 2021
Collected
Sep 24, 2021 14:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
VO-210925-001
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 24, 2021 14:30, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 24, 2021 14:30, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 24, 2021 14:30, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 24, 2021 14:30, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 24, 2021 14:30, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 24, 2021 14:30, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 24, 2021 14:30, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 24, 2021 14:30, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 24, 2021 14:30, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 24, 2021 14:30, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 24, 2021 14:30, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 24, 2021 14:30, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 24, 2021 14:30, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 24, 2021 14:30, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 24, 2021 14:30, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 24, 2021 14:30, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 24, 2021 14:30, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 24, 2021 14:30, sampling point TF101 Benzene 2990 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 24, 2021 14:30, sampling point TF101 Toluene 2991 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 24, 2021 14:30, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 24, 2021 14:30, sampling point TF101 Styrene 2996 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Collected
Apr 14, 2021 14:05
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
NI-210415-038
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 14, 2021 14:05, sampling point TF104 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 14, 2021 14:05, sampling point TF104 Nitrate 1040 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 14, 2021 14:05, sampling point TF104 Nitrite 1041 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Collected
Apr 14, 2021 14:19
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-210415-037
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 14, 2021 14:19, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 14, 2021 14:19, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 14, 2021 14:19, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Collected
Apr 14, 2021 14:32
Sampling point
ST060 Tank S060
Sample type
Routine
Lab sample
NI-210415-036
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 14, 2021 14:32, sampling point ST060 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 14, 2021 14:32, sampling point ST060 Nitrate 1040 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 14, 2021 14:32, sampling point ST060 Nitrite 1041 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Collected
Dec 2, 2020 13:51
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
NI-201203-012
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Dec 2, 2020 13:51, sampling point TF104 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Dec 2, 2020 13:51, sampling point TF104 Nitrate 1040 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Dec 2, 2020 13:51, sampling point TF104 Nitrite 1041 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Collected
Oct 29, 2020 13:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
201030-001VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 29, 2020 13:30, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 29, 2020 13:30, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 29, 2020 13:30, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 29, 2020 13:30, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 29, 2020 13:30, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 29, 2020 13:30, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 29, 2020 13:30, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 29, 2020 13:30, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 29, 2020 13:30, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 29, 2020 13:30, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 29, 2020 13:30, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 29, 2020 13:30, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 29, 2020 13:30, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 29, 2020 13:30, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 29, 2020 13:30, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 29, 2020 13:30, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 29, 2020 13:30, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 29, 2020 13:30, sampling point TF101 Benzene 2990 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 29, 2020 13:30, sampling point TF101 Toluene 2991 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 29, 2020 13:30, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 29, 2020 13:30, sampling point TF101 Styrene 2996 EPA method 524.2 Jan 1, 2018 – Dec 31, 2023
Collected
Sep 22, 2020 15:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
200923-008TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 22, 2020 15:00, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 22, 2020 15:00, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 22, 2020 15:00, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 22, 2020 15:00, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 4 ug/l Minimum Reporting Level , sample collected Sep 22, 2020 15:00, sampling point MRT000 TTHM 2950 Jan 1, 2020 – Dec 31, 2020

Routine (10).