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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

MS0810004 , East End Water Association

22 of the 57 analytes this system has been tested for have been detected at least once, across 235 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 235 samples on record, detections range from November 3, 2003 to April 9, 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 East End Water Association, 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 80 of 80 results Sep 18, 2007 Aug 14, 2023
Lead 1030 Inorganic Chemical 52 of 80 results Sep 18, 2007 Aug 14, 2023
Barium 1010 Inorganic Chemical 20 of 20 results Nov 3, 2003 Apr 9, 2025
Fluoride 1025 Inorganic Chemical 18 of 20 results Nov 3, 2003 Apr 9, 2025
Chromium 1020 Inorganic Chemical 11 of 20 results Nov 3, 2003 Apr 9, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Dec 12, 2011 Jul 20, 2012
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 7 of 8 results Sep 13, 2004 Dec 6, 2022
TTHM 2950 Organic Chemical 7 of 9 results Sep 13, 2004 Dec 6, 2022
Nickel 1036 Inorganic Chemical 6 of 20 results May 12, 2010 Apr 9, 2025
Sodium 1052 Inorganic Chemical 4 of 4 results Sep 24, 2019 Mar 20, 2023
Xylenes, Total 2955 Organic Chemical 4 of 30 results Sep 7, 2004 Jul 22, 2010
Dichloroacetic Acid 2451 Organic Chemical 3 of 3 results Jun 22, 2011 Aug 15, 2017
Trichloroacetic Acid 2452 Organic Chemical 3 of 3 results Jun 22, 2011 Aug 15, 2017
Chloroform 2941 Organic Chemical 3 of 4 results Jun 22, 2011 Aug 15, 2017
Bromodichloromethane 2943 Organic Chemical 3 of 4 results Jun 22, 2011 Aug 15, 2017
Dibromochloromethane 2944 Organic Chemical 3 of 4 results Jun 22, 2011 Aug 15, 2017
Nitrate 1040 Inorganic Chemical 2 of 42 results Aug 17, 2006 Aug 17, 2006
Cadmium 1015 Inorganic Chemical 2 of 20 results May 2, 2005 May 2, 2005
Selenium 1045 Inorganic Chemical 2 of 20 results May 2, 2005 May 2, 2005
Sulfate 1055 Inorganic Chemical 2 of 4 results Nov 3, 2003 Nov 3, 2003
Cyanide 1024 Inorganic Chemical 1 of 22 results Oct 21, 2013 Oct 21, 2013
Ethylbenzene 2992 Organic Chemical 1 of 30 results Sep 7, 2004 Sep 7, 2004

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 41–50 of 235 samples, newest first — collected September 10, 2020 to May 4, 2021. The summary above covers all 235.

21 results from the 10 samples listed here: 15 detected, 6 not detected. Across the whole record it is 244 of 1,264. 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 End Water Association, every result from 41 to 50 of 235 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
May 4, 2021 13:45
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-210505-023
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 4, 2021 13:45, 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 May 4, 2021 13:45, 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 May 4, 2021 13:45, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Collected
Sep 11, 2020 10:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200914-010PB
Laboratory
MSDH Lab
0.2419 mg/l , sample collected Sep 11, 2020 10:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0005 mg/l , sample collected Sep 11, 2020 10:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Sep 10, 2020 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200914-015PB
Laboratory
MSDH Lab
0.0257 mg/l , sample collected Sep 10, 2020 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2020 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Sep 10, 2020 05:10
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200914-014PB
Laboratory
MSDH Lab
0.0317 mg/l , sample collected Sep 10, 2020 05:10, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2020 05:10, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Sep 10, 2020 07:15
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200914-013PB
Laboratory
MSDH Lab
0.0148 mg/l , sample collected Sep 10, 2020 07:15, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0006 mg/l , sample collected Sep 10, 2020 07:15, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Sep 10, 2020 07:38
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200914-012PB
Laboratory
MSDH Lab
0.0306 mg/l , sample collected Sep 10, 2020 07:38, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2020 07:38, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Sep 10, 2020 07:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200914-011PB
Laboratory
MSDH Lab
0.0181 mg/l , sample collected Sep 10, 2020 07:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0005 mg/l , sample collected Sep 10, 2020 07:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Sep 10, 2020 11:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200914-009PB
Laboratory
MSDH Lab
0.2588 mg/l , sample collected Sep 10, 2020 11:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0042 mg/l , sample collected Sep 10, 2020 11:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Sep 10, 2020 08:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200914-008PB
Laboratory
MSDH Lab
0.0162 mg/l , sample collected Sep 10, 2020 08:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0007 mg/l , sample collected Sep 10, 2020 08:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
Collected
Sep 10, 2020 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200914-007PB
Laboratory
MSDH Lab
0.0112 mg/l , sample collected Sep 10, 2020 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020
0.0015 mg/l , sample collected Sep 10, 2020 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2020

Routine (10).