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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 31–40 of 302 samples, newest first — collected July 17, 2023 to October 25, 2023. The summary above covers all 302.

19 results from the 10 samples listed here: 12 detected, 7 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.

We withheld the location of 6 sampling points below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.

Chemical and radiological sample results for Acona Water Association #1, every result from 31 to 40 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
Oct 25, 2023 15:17
Sampling point
TF103 TF103
Sample type
Routine
Lab sample
CN-231026-016
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 25, 2023 15:17, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2023
Collected
Jul 17, 2023 16:08
Sampling point
LC0014 Location withheld
Sample type
Routine
Lab sample
PB-230718-054
Laboratory
MSDH Lab
0.0316 mg/l , sample collected Jul 17, 2023 16:08, sampling point LC0014 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 17, 2023 16:08, sampling point LC0014 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 17, 2023 08:15
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-230718-038
Laboratory
MSDH Lab
0.333 mg/l , sample collected Jul 17, 2023 08:15, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
1.4 ug/l , sample collected Jul 17, 2023 08:15, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 17, 2023 08:45
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-230718-037
Laboratory
MSDH Lab
0.0082 mg/l , sample collected Jul 17, 2023 08:45, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.8 ug/l , sample collected Jul 17, 2023 08:45, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 17, 2023 04:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-230718-036
Laboratory
MSDH Lab
0.0063 mg/l , sample collected Jul 17, 2023 04:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 17, 2023 04:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 17, 2023 06:00
Sampling point
LC0008 Location withheld
Sample type
Routine
Lab sample
PB-230718-035
Laboratory
MSDH Lab
0.0816 mg/l , sample collected Jul 17, 2023 06:00, sampling point LC0008 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 17, 2023 06:00, sampling point LC0008 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 17, 2023 05:00
Sampling point
LC0007 Location withheld
Sample type
Routine
Lab sample
PB-230718-034
Laboratory
MSDH Lab
0.0731 mg/l , sample collected Jul 17, 2023 05:00, sampling point LC0007 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 17, 2023 05:00, sampling point LC0007 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 17, 2023 06:00
Sampling point
LC0006 Location withheld
Sample type
Routine
Lab sample
PB-230718-033
Laboratory
MSDH Lab
0.0771 mg/l , sample collected Jul 17, 2023 06:00, sampling point LC0006 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 17, 2023 06:00, sampling point LC0006 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 17, 2023 06:00
Sampling point
LC0004 Location withheld
Sample type
Routine
Lab sample
PB-230718-032
Laboratory
MSDH Lab
0.0181 mg/l , sample collected Jul 17, 2023 06:00, sampling point LC0004 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.7 ug/l , sample collected Jul 17, 2023 06:00, sampling point LC0004 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 17, 2023 06:00
Sampling point
LC0003 Location withheld
Sample type
Routine
Lab sample
PB-230718-031
Laboratory
MSDH Lab
0.096 mg/l , sample collected Jul 17, 2023 06:00, sampling point LC0003 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 17, 2023 06:00, sampling point LC0003 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023

Routine (10).