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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

MS0370001 , Arnold Line Water Association

26 of the 60 analytes this system has been tested for have been detected at least once, across 536 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 536 samples on record, detections range from September 29, 2003 to May 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 Arnold Line 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 286 of 286 results Sep 5, 2007 Jul 16, 2024
Lead 1030 Inorganic Chemical 167 of 286 results Sep 5, 2007 Jul 16, 2024
Barium 1010 Inorganic Chemical 35 of 35 results Sep 29, 2003 Dec 3, 2025
Fluoride 1025 Inorganic Chemical 35 of 35 results Sep 29, 2003 Dec 3, 2025
TTHM 2950 Organic Chemical 23 of 23 results Jun 21, 2004 May 11, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 21 of 23 results Sep 17, 2007 May 22, 2025
Chromium 1020 Inorganic Chemical 18 of 35 results Sep 29, 2003 May 15, 2017
Chloroform 2941 Organic Chemical 17 of 17 results Sep 17, 2007 May 11, 2026
Bromodichloromethane 2943 Organic Chemical 17 of 17 results Sep 17, 2007 May 11, 2026
Dichloroacetic Acid 2451 Organic Chemical 16 of 17 results Sep 17, 2007 May 22, 2025
Trichloroacetic Acid 2452 Organic Chemical 16 of 17 results Sep 17, 2007 May 22, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 15 of 15 results Mar 5, 2012 Oct 3, 2012
Dibromochloromethane 2944 Organic Chemical 12 of 17 results Sep 17, 2007 May 11, 2026
Sodium 1052 Inorganic Chemical 9 of 9 results Sep 16, 2019 Dec 3, 2025
Sulfate 1055 Inorganic Chemical 8 of 8 results Sep 29, 2003 Mar 3, 2004
Nickel 1036 Inorganic Chemical 6 of 35 results Dec 3, 2007 May 15, 2017
Gross Alpha, Excl. Radon & U 4000 Radionuclide 6 of 6 results Sep 21, 2009 Mar 8, 2010
Combined Radium (-226 & -228) 4010 Radionuclide 6 of 21 results Sep 21, 2009 Mar 8, 2010
Radium-226 4020 Radionuclide 6 of 21 results Sep 21, 2009 Mar 8, 2010
Gross Beta Particle Activity 4100 Radionuclide 6 of 6 results Sep 21, 2009 Mar 8, 2010
Gross Alpha Particle Activity 4109 Radionuclide 6 of 6 results Sep 21, 2009 Mar 8, 2010
Radium-228 4030 Radionuclide 5 of 21 results Sep 21, 2009 Mar 8, 2010
Monobromoacetic Acid 2453 Organic Chemical 3 of 17 results Aug 28, 2018 Sep 8, 2020
Cyanide 1024 Inorganic Chemical 1 of 35 results Feb 9, 2021 Feb 9, 2021
Monochloroacetic Acid 2450 Organic Chemical 1 of 17 results Aug 28, 2018 Aug 28, 2018
Nitrate 1040 Inorganic Chemical 1 of 66 results Jul 10, 2006 Jul 10, 2006

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 131–140 of 536 samples, newest first — collected February 26, 2018 to June 6, 2018. The summary above covers all 536.

22 results from the 10 samples listed here: 11 detected, 11 not detected. Across the whole record it is 742 of 2,220. 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 Arnold Line Water Association, every result from 131 to 140 of 536 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
Jun 6, 2018 09:36
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180608-014PB
Laboratory
MSDH Lab
0.0524 mg/l , sample collected Jun 6, 2018 09:36, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
0.0013 mg/l , sample collected Jun 6, 2018 09:36, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
Collected
Jun 6, 2018 07:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180608-013PB
Laboratory
MSDH Lab
0.0349 mg/l , sample collected Jun 6, 2018 07:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
0.0018 mg/l , sample collected Jun 6, 2018 07:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
Collected
Jun 6, 2018 09:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180608-012PB
Laboratory
MSDH Lab
0.0787 mg/l , sample collected Jun 6, 2018 09:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 6, 2018 09:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
Collected
Jun 6, 2018 07:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180608-011PB
Laboratory
MSDH Lab
0.0154 mg/l , sample collected Jun 6, 2018 07:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 6, 2018 07:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
Collected
Jun 5, 2018 08:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180608-021PB
Laboratory
MSDH Lab
0.022 mg/l , sample collected Jun 5, 2018 08:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 5, 2018 08:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
Collected
Jun 5, 2018 08:10
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180608-020PB
Laboratory
MSDH Lab
0.0123 mg/l , sample collected Jun 5, 2018 08:10, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 5, 2018 08:10, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
Collected
Jun 5, 2018 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180608-017PB
Laboratory
MSDH Lab
0.0101 mg/l , sample collected Jun 5, 2018 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 5, 2018 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
Collected
Jun 5, 2018 09:05
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180608-016PB
Laboratory
MSDH Lab
0.0108 mg/l , sample collected Jun 5, 2018 09:05, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
0.001 mg/l , sample collected Jun 5, 2018 09:05, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2018 – Dec 31, 2018
Collected
Feb 26, 2018 12:10
Sampling point
TF106
Sample type
Routine
Lab sample
180227-030NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 26, 2018 12:10, sampling point TF106 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 26, 2018 12:10, sampling point TF106 Nitrate 1040 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 26, 2018 12:10, sampling point TF106 Nitrite 1041 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Collected
Feb 26, 2018 12:30
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
180227-025NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 26, 2018 12:30, sampling point TF104 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 26, 2018 12:30, sampling point TF104 Nitrate 1040 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 26, 2018 12:30, sampling point TF104 Nitrite 1041 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018

Routine (10).