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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

MS0820030 , Central Yazoo #3 Mechanicsbrg

27 of the 62 analytes this system has been tested for have been detected at least once, across 241 samples on record.

The other 35 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 241 samples on record, detections range from November 5, 2003 to July 22, 2026. 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 Central Yazoo #3 Mechanicsbrg, 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 62 of 62 results Aug 21, 2007 Aug 15, 2023
TTHM 2950 Organic Chemical 38 of 39 results Aug 30, 2004 Jun 9, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 36 of 36 results Aug 30, 2004 Sep 16, 2025
Chloroform 2941 Organic Chemical 32 of 32 results May 11, 2009 Jun 9, 2026
Bromodichloromethane 2943 Organic Chemical 31 of 32 results May 11, 2009 Jun 9, 2026
Dichloroacetic Acid 2451 Organic Chemical 31 of 31 results May 11, 2009 Sep 16, 2025
Trichloroacetic Acid 2452 Organic Chemical 31 of 31 results May 11, 2009 Sep 16, 2025
Lead 1030 Inorganic Chemical 22 of 62 results Aug 21, 2007 Aug 14, 2023
Fluoride 1025 Inorganic Chemical 19 of 20 results Nov 5, 2003 Apr 7, 2025
Barium 1010 Inorganic Chemical 18 of 18 results Nov 5, 2003 Apr 7, 2025
Chromium 1020 Inorganic Chemical 15 of 18 results Apr 5, 2004 Apr 7, 2025
Dibromochloromethane 2944 Organic Chemical 14 of 32 results Jun 20, 2011 Jun 9, 2026
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Mar 13, 2012 Oct 3, 2012
Sodium 1052 Inorganic Chemical 8 of 8 results Sep 18, 2019 Jul 22, 2026
Nickel 1036 Inorganic Chemical 7 of 18 results Dec 4, 2006 Apr 7, 2025
Sulfate 1055 Inorganic Chemical 4 of 4 results Nov 5, 2003 Aug 12, 2021
Monochloroacetic Acid 2450 Organic Chemical 4 of 31 results Nov 9, 2009 Feb 27, 2013
Monobromoacetic Acid 2453 Organic Chemical 3 of 31 results Nov 7, 2012 Nov 2, 2020
Calcium 1016 Inorganic Chemical 2 of 2 results Aug 12, 2021 Aug 12, 2021
Chloride 1017 Inorganic Chemical 2 of 2 results Aug 12, 2021 Aug 12, 2021
Conductivity @ 25 C Umhos/CM 1064 Water Quality 2 of 2 results Aug 12, 2021 Aug 12, 2021
Alkalinity, Total 1927 Water Quality 2 of 2 results Aug 12, 2021 Aug 12, 2021
Arsenic 1005 Inorganic Chemical 2 of 18 results Apr 18, 2006 May 10, 2010
Selenium 1045 Inorganic Chemical 2 of 18 results Apr 18, 2006 Dec 4, 2006
Nitrite 1041 Inorganic Chemical 2 of 41 results Aug 17, 2006 Aug 17, 2006
Color 1905 Water Quality 1 of 2 results Aug 12, 2021 Aug 12, 2021
Cyanide 1024 Inorganic Chemical 1 of 18 results Jun 12, 2017 Jun 12, 2017

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 161–170 of 241 samples, newest first — collected September 14, 2011 to September 14, 2011. The summary above covers all 241.

20 results from the 10 samples listed here: 11 detected, 9 not detected. Across the whole record it is 401 of 1,147. 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 Central Yazoo #3 Mechanicsbrg, every result from 161 to 170 of 241 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
Sep 14, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110915-050PB
Laboratory
MSDH Lab
0.0402 mg/l , sample collected Sep 14, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 14, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Sep 14, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110915-049PB
Laboratory
MSDH Lab
0.0411 mg/l , sample collected Sep 14, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 14, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Sep 14, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110915-048PB
Laboratory
MSDH Lab
0.0757 mg/l , sample collected Sep 14, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 14, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Sep 14, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110915-047PB
Laboratory
MSDH Lab
0.0278 mg/l , sample collected Sep 14, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
0.0011 mg/l , sample collected Sep 14, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Sep 14, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110915-046PB
Laboratory
MSDH Lab
0.0104 mg/l , sample collected Sep 14, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 14, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Sep 14, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110915-044PB
Laboratory
MSDH Lab
0.0169 mg/l , sample collected Sep 14, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 14, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Sep 14, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110915-043PB
Laboratory
MSDH Lab
0.0043 mg/l , sample collected Sep 14, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 14, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Sep 14, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110915-045PB
Laboratory
MSDH Lab
0.049 mg/l , sample collected Sep 14, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 14, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Sep 14, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110915-042PB
Laboratory
MSDH Lab
0.0137 mg/l , sample collected Sep 14, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 14, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Sep 14, 2011
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
110915-041PB
Laboratory
MSDH Lab
0.0408 mg/l , sample collected Sep 14, 2011, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 14, 2011, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011

Routine (10).