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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

MS0510011 , City of Union

25 of the 62 analytes this system has been tested for have been detected at least once, across 240 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 240 samples on record, detections range from October 13, 2003 to June 11, 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 City of Union, 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 142 of 142 results Sep 6, 2007 Jul 29, 2024
Lead 1030 Inorganic Chemical 34 of 142 results Sep 6, 2007 Jul 29, 2024
TTHM 2950 Organic Chemical 27 of 27 results Jul 21, 2004 Jun 11, 2026
Chloroform 2941 Organic Chemical 20 of 20 results Sep 23, 2008 Jun 11, 2026
Bromodichloromethane 2943 Organic Chemical 20 of 20 results Sep 23, 2008 Jun 11, 2026
Dibromochloromethane 2944 Organic Chemical 18 of 20 results Sep 23, 2008 Jun 11, 2026
Fluoride 1025 Inorganic Chemical 11 of 11 results Oct 13, 2003 Mar 17, 2025
Barium 1010 Inorganic Chemical 10 of 10 results Oct 13, 2003 Mar 17, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 10 of 26 results Nov 17, 2005 Jun 3, 2024
Nickel 1036 Inorganic Chemical 6 of 10 results Apr 4, 2005 Mar 17, 2025
Chromium 1020 Inorganic Chemical 5 of 10 results Oct 13, 2003 Mar 17, 2025
Dichloroacetic Acid 2451 Organic Chemical 5 of 20 results Sep 23, 2008 Sep 21, 2020
Sodium 1052 Inorganic Chemical 4 of 4 results Sep 12, 2019 Feb 24, 2025
Trichloroacetic Acid 2452 Organic Chemical 4 of 20 results Jun 14, 2011 Sep 21, 2020
Gross Alpha Particle Activity 4109 Radionuclide 4 of 4 results Sep 6, 2011 Apr 2, 2012
Sulfate 1055 Inorganic Chemical 3 of 3 results Oct 13, 2003 Oct 19, 2021
Calcium 1016 Inorganic Chemical 1 of 1 result Oct 19, 2021 Oct 19, 2021
Chloride 1017 Inorganic Chemical 1 of 1 result Oct 19, 2021 Oct 19, 2021
Conductivity @ 25 C Umhos/CM 1064 Water Quality 1 of 1 result Oct 19, 2021 Oct 19, 2021
Color 1905 Water Quality 1 of 1 result Oct 19, 2021 Oct 19, 2021
Alkalinity, Total 1927 Water Quality 1 of 1 result Oct 19, 2021 Oct 19, 2021
Monochloroacetic Acid 2450 Organic Chemical 1 of 20 results Jun 14, 2011 Jun 14, 2011
Dibromoacetic Acid 2454 Organic Chemical 1 of 20 results Sep 23, 2008 Sep 23, 2008
Bromoform 2942 Organic Chemical 1 of 20 results Sep 23, 2008 Sep 23, 2008
Selenium 1045 Inorganic Chemical 1 of 10 results Apr 4, 2005 Apr 4, 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 81–90 of 240 samples, newest first — collected September 17, 2018 to November 18, 2019. The summary above covers all 240.

28 results from the 10 samples listed here: 11 detected, 17 not detected. Across the whole record it is 332 of 883. 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 City of Union, every result from 81 to 90 of 240 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
Nov 18, 2019 11:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
191119-010NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Nov 18, 2019 11:00, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Nov 18, 2019 11:00, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Nov 18, 2019 11:00, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Collected
Oct 14, 2019 12:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
191015-012CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 14, 2019 12:00, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2017 – Dec 31, 2019
Collected
Sep 12, 2019 13:15
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
680-174178-62
Laboratory
Test America-Savannah
4000 ug/l , sample collected Sep 12, 2019 13:15, sampling point TF080 Sodium 1052 EPA method 200.7 Not recorded
Collected
May 13, 2019 11:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
190514-003IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 13, 2019 11:00, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
0.0221 mg/l , sample collected May 13, 2019 11:00, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 13, 2019 11:00, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 13, 2019 11:00, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
0.721 mg/l , sample collected May 13, 2019 11:00, sampling point TF080 Fluoride 1025 EPA method 300.0 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 13, 2019 11:00, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 13, 2019 11:00, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 13, 2019 11:00, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 13, 2019 11:00, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 13, 2019 11:00, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 13, 2019 11:00, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Collected
Sep 17, 2018 05:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180918-031PB
Laboratory
MSDH Lab
0.1051 mg/l , sample collected Sep 17, 2018 05:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 17, 2018 05:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Collected
Sep 17, 2018 06:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180918-030PB
Laboratory
MSDH Lab
0.0867 mg/l , sample collected Sep 17, 2018 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
0.0006 mg/l , sample collected Sep 17, 2018 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Collected
Sep 17, 2018 07:20
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180918-029PB
Laboratory
MSDH Lab
0.1329 mg/l , sample collected Sep 17, 2018 07:20, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 17, 2018 07:20, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Collected
Sep 17, 2018 07:10
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180918-028PB
Laboratory
MSDH Lab
0.077 mg/l , sample collected Sep 17, 2018 07:10, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 17, 2018 07:10, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Collected
Sep 17, 2018 09:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180918-027PB
Laboratory
MSDH Lab
0.0741 mg/l , sample collected Sep 17, 2018 09:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
0.0005 mg/l , sample collected Sep 17, 2018 09:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Collected
Sep 17, 2018 05:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180918-026PB
Laboratory
MSDH Lab
0.0736 mg/l , sample collected Sep 17, 2018 05:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 17, 2018 05:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018

Routine (10).