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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

MS0260001 , Acona Water Association #1

22 of the 57 analytes this system has been tested for have been detected at least once, across 302 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 302 samples on record, detections range from November 29, 1993 to August 13, 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 Acona Water Association #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 79 of 97 results Nov 29, 1993 Jul 17, 2023
Lead 1030 Inorganic Chemical 49 of 97 results Nov 29, 1993 Jul 17, 2023
Barium 1010 Inorganic Chemical 29 of 29 results Oct 8, 2003 Feb 11, 2025
TTHM 2950 Organic Chemical 22 of 23 results Jun 7, 2004 Aug 13, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 19 of 23 results Jul 30, 2007 Aug 13, 2025
Chloroform 2941 Organic Chemical 15 of 18 results Sep 22, 2014 Aug 13, 2025
Dichloroacetic Acid 2451 Organic Chemical 14 of 17 results Sep 24, 2008 Aug 13, 2025
Bromodichloromethane 2943 Organic Chemical 14 of 18 results Sep 22, 2014 Aug 13, 2025
Trichloroacetic Acid 2452 Organic Chemical 13 of 17 results Sep 22, 2014 Aug 13, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Dec 8, 2011 Jul 10, 2012
Dibromochloromethane 2944 Organic Chemical 9 of 18 results Feb 28, 2024 Aug 13, 2025
Sodium 1052 Inorganic Chemical 7 of 7 results Sep 17, 2019 Nov 25, 2024
Chromium 1020 Inorganic Chemical 7 of 29 results Feb 9, 2004 Jan 22, 2019
Sulfate 1055 Inorganic Chemical 4 of 4 results Oct 8, 2003 Feb 23, 2004
Fluoride 1025 Inorganic Chemical 3 of 29 results Mar 14, 2005 Feb 7, 2024
Xylenes, Total 2955 Organic Chemical 3 of 32 results Feb 25, 2019 Aug 12, 2019
Nickel 1036 Inorganic Chemical 3 of 29 results Feb 13, 2006 Apr 14, 2008
Monochloroacetic Acid 2450 Organic Chemical 2 of 17 results Aug 1, 2019 Aug 27, 2020
Monobromoacetic Acid 2453 Organic Chemical 2 of 17 results Sep 22, 2014 Aug 1, 2019
Cyanide 1024 Inorganic Chemical 2 of 23 results Mar 14, 2005 Mar 21, 2012
Nitrite 1041 Inorganic Chemical 2 of 56 results Apr 23, 2007 Apr 23, 2007
Selenium 1045 Inorganic Chemical 2 of 29 results Mar 14, 2005 Mar 14, 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 231–240 of 302 samples, newest first — collected August 8, 2005 to April 23, 2007. The summary above covers all 302.

44 results from the 10 samples listed here: 5 detected, 39 not detected. Across the whole record it is 310 of 1,644. 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 Acona Water Association #1, every result from 231 to 240 of 302 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
Apr 23, 2007
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
070424-063NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 23, 2007, sampling point TF102 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 23, 2007, sampling point TF102 Nitrate 1040 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
0.02 mg/l , sample collected Apr 23, 2007, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Collected
Apr 23, 2007
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
070424-052NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 23, 2007, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 23, 2007, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
0.02 mg/l , sample collected Apr 23, 2007, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Collected
Jun 19, 2006
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
060620-089NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jun 19, 2006, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jun 19, 2006, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jun 19, 2006, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Collected
Jun 19, 2006
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
060620-029NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jun 19, 2006, sampling point TF102 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jun 19, 2006, sampling point TF102 Nitrate 1040 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jun 19, 2006, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Collected
Feb 15, 2006
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
060216-047CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Feb 15, 2006, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Feb 15, 2006
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
060216-048CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Feb 15, 2006, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Feb 13, 2006
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
060214-129IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.00207 mg/l , sample collected Feb 13, 2006, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF102 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF102 Uranium-238 4009 Not recorded
Collected
Feb 13, 2006
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
060214-128IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.005462 mg/l , sample collected Feb 13, 2006, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Mercury 1035 EPA method 245.1 Jan 1, 2005 – Dec 31, 2007
0.007341 mg/l , sample collected Feb 13, 2006, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 13, 2006, sampling point TF101 Uranium-238 4009 Not recorded
Collected
Aug 8, 2005
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
050809-139NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Aug 8, 2005, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Aug 8, 2005, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Aug 8, 2005, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
Aug 8, 2005
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
050809-138NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Aug 8, 2005, sampling point TF102 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Aug 8, 2005, sampling point TF102 Nitrate 1040 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Aug 8, 2005, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005

Routine (10).