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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

MS0090002 , East Chickasaw W/A #1

25 of the 57 analytes this system has been tested for have been detected at least once, across 425 samples on record.

The other 32 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 425 samples on record, detections range from October 19, 1993 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 East Chickasaw W/A #1, 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 129 of 146 results Oct 19, 1993 Jun 10, 2025
Lead 1030 Inorganic Chemical 68 of 146 results Oct 19, 1993 Jun 9, 2025
Barium 1010 Inorganic Chemical 27 of 27 results Jul 16, 2002 Jul 1, 2026
Fluoride 1025 Inorganic Chemical 24 of 27 results Jan 12, 2004 Jul 1, 2026
Xylenes, Total 2955 Organic Chemical 20 of 113 results May 24, 2005 Jan 4, 2022
Chromium 1020 Inorganic Chemical 18 of 27 results Jul 16, 2002 Jul 8, 2025
TTHM 2950 Organic Chemical 16 of 22 results May 10, 2004 Jul 22, 2026
Arsenic 1005 Inorganic Chemical 13 of 27 results Sep 24, 2018 Jul 1, 2026
Selenium 1045 Inorganic Chemical 12 of 27 results Jul 16, 2002 Jul 1, 2026
Nickel 1036 Inorganic Chemical 11 of 26 results Feb 14, 2005 Jul 8, 2025
Bromoform 2942 Organic Chemical 10 of 16 results Jul 9, 2007 Jul 22, 2026
Ethylbenzene 2992 Organic Chemical 9 of 113 results Apr 5, 2004 May 19, 2021
Dibromochloromethane 2944 Organic Chemical 7 of 16 results Jul 16, 2018 Jul 22, 2026
Sodium 1052 Inorganic Chemical 6 of 6 results Sep 18, 2019 Oct 14, 2024
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 5 of 23 results Jul 9, 2007 Feb 7, 2022
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 10 results Dec 5, 2011 Jul 10, 2012
Sulfate 1055 Inorganic Chemical 3 of 4 results Jul 16, 2002 Jan 12, 2004
Bromodichloromethane 2943 Organic Chemical 2 of 16 results Dec 11, 2023 Jul 22, 2026
Toluene 2991 Organic Chemical 2 of 113 results Feb 22, 2006 May 16, 2017
Cadmium 1015 Inorganic Chemical 2 of 27 results Feb 14, 2005 Feb 14, 2005
Dibromoacetic Acid 2454 Organic Chemical 1 of 17 results Jul 30, 2024 Jul 30, 2024
Chloroform 2941 Organic Chemical 1 of 16 results Dec 11, 2023 Dec 11, 2023
Monochloroacetic Acid 2450 Organic Chemical 1 of 17 results Jul 16, 2018 Jul 16, 2018
Nitrate-Nitrite 1038 Inorganic Chemical 1 of 50 results Jan 22, 2018 Jan 22, 2018
Nitrate 1040 Inorganic Chemical 1 of 50 results Jan 22, 2018 Jan 22, 2018

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 425 samples, newest first — collected September 6, 2016 to September 6, 2016. The summary above covers all 425.

20 results from the 10 samples listed here: 14 detected, 6 not detected. Across the whole record it is 394 of 3,396. 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 East Chickasaw W/A #1, every result from 161 to 170 of 425 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 6, 2016 05:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
160908-010PB
Laboratory
MSDH Lab
0.0916 mg/l , sample collected Sep 6, 2016 05:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0007 mg/l , sample collected Sep 6, 2016 05:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Sep 6, 2016 07:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
160908-009PB
Laboratory
MSDH Lab
0.2539 mg/l , sample collected Sep 6, 2016 07:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0015 mg/l , sample collected Sep 6, 2016 07:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Sep 6, 2016 05:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
160908-008PB
Laboratory
MSDH Lab
0.1863 mg/l , sample collected Sep 6, 2016 05:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 6, 2016 05:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Sep 6, 2016 07:20
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
160908-007PB
Laboratory
MSDH Lab
0.3082 mg/l , sample collected Sep 6, 2016 07:20, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 6, 2016 07:20, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Sep 6, 2016
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
160908-006PB
Laboratory
MSDH Lab
0.3556 mg/l , sample collected Sep 6, 2016, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0006 mg/l , sample collected Sep 6, 2016, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Sep 6, 2016 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
160908-005PB
Laboratory
MSDH Lab
0.1515 mg/l , sample collected Sep 6, 2016 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 6, 2016 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Sep 6, 2016 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
160908-004PB
Laboratory
MSDH Lab
0.1541 mg/l , sample collected Sep 6, 2016 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 6, 2016 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Sep 6, 2016 08:19
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
160908-003PB
Laboratory
MSDH Lab
0.015 mg/l , sample collected Sep 6, 2016 08:19, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.001 mg/l , sample collected Sep 6, 2016 08:19, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Sep 6, 2016 05:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
160908-002PB
Laboratory
MSDH Lab
0.381 mg/l , sample collected Sep 6, 2016 05:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 6, 2016 05:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Sep 6, 2016 05:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
160908-001PB
Laboratory
MSDH Lab
0.2125 mg/l , sample collected Sep 6, 2016 05:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 6, 2016 05:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017

Routine (10).