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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 271–280 of 364 samples, newest first — collected July 26, 2006 to August 28, 2007. The summary above covers all 364.

32 results from the 10 samples listed here: 1 detected, 31 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 271 to 280 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
Aug 28, 2007
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
070829-006TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 28, 2007, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 28, 2007, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 28, 2007, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 28, 2007, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
0 This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. 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 Aug 28, 2007, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2005 – Dec 31, 2007
Collected
May 14, 2007
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
070515-122NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 14, 2007, sampling point TF104 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 14, 2007, sampling point TF104 Nitrate 1040 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 14, 2007, sampling point TF104 Nitrite 1041 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Collected
May 14, 2007
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
070515-134NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 14, 2007, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 14, 2007, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 14, 2007, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Collected
May 14, 2007
Sampling point
TF105 Treatment Plant T105
Sample type
Routine
Lab sample
070515-118NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 14, 2007, sampling point TF105 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 14, 2007, sampling point TF105 Nitrate 1040 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 14, 2007, sampling point TF105 Nitrite 1041 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Collected
May 14, 2007
Sampling point
ST060 Tank S060
Sample type
Routine
Lab sample
070515-133NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 14, 2007, sampling point ST060 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 14, 2007, sampling point ST060 Nitrate 1040 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 14, 2007, sampling point ST060 Nitrite 1041 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Collected
Jul 26, 2006
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
060727-080NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jul 26, 2006, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jul 26, 2006, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jul 26, 2006, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Collected
Jul 26, 2006
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
060727-059NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jul 26, 2006, sampling point TF104 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jul 26, 2006, sampling point TF104 Nitrate 1040 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jul 26, 2006, sampling point TF104 Nitrite 1041 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Collected
Jul 26, 2006
Sampling point
ST060 Tank S060
Sample type
Routine
Lab sample
060727-073NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jul 26, 2006, sampling point ST060 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jul 26, 2006, sampling point ST060 Nitrate 1040 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jul 26, 2006, sampling point ST060 Nitrite 1041 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Collected
Jul 26, 2006
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
060727-060NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jul 26, 2006, sampling point TF103 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jul 26, 2006, sampling point TF103 Nitrate 1040 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jul 26, 2006, sampling point TF103 Nitrite 1041 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Collected
Jul 26, 2006
Sampling point
TF105 Treatment Plant T105
Sample type
Routine
Lab sample
060727-020NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jul 26, 2006, sampling point TF105 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jul 26, 2006, sampling point TF105 Nitrate 1040 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jul 26, 2006, sampling point TF105 Nitrite 1041 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006

Routine (10).