Skip to main content
Alpha

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

MS0030001 , Coles Water Association #1

18 of the 55 analytes this system has been tested for have been detected at least once, across 158 samples on record.

The other 37 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 158 samples on record, detections range from April 14, 1994 to July 22, 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 Coles 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
Lead 1030 Inorganic Chemical 56 of 71 results Apr 14, 1994 Aug 13, 2024
Copper, Free 1022 Inorganic Chemical 51 of 71 results Apr 14, 1994 Aug 13, 2024
TTHM 2950 Organic Chemical 7 of 26 results May 3, 2004 Jul 22, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 6 of 27 results Jun 25, 2007 Mar 5, 2025
Bromodichloromethane 2943 Organic Chemical 5 of 20 results Jun 25, 2007 Jul 22, 2025
Dibromochloromethane 2944 Organic Chemical 5 of 20 results Jun 25, 2007 Jul 22, 2025
Arsenic 1005 Inorganic Chemical 5 of 5 results Apr 21, 2011 Jan 10, 2024
Barium 1010 Inorganic Chemical 5 of 5 results Apr 21, 2011 Jan 10, 2024
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 5, 2011 Jul 10, 2012
Combined Radium (-226 & -228) 4010 Radionuclide 5 of 5 results Dec 5, 2011 Jul 10, 2012
Radium-226 4020 Radionuclide 5 of 5 results Dec 5, 2011 Jul 10, 2012
Chloroform 2941 Organic Chemical 4 of 20 results Jun 25, 2007 Jul 22, 2025
Sodium 1052 Inorganic Chemical 3 of 3 results Sep 18, 2019 Oct 16, 2024
Nickel 1036 Inorganic Chemical 2 of 5 results May 5, 2014 Jan 10, 2024
Monochloroacetic Acid 2450 Organic Chemical 2 of 20 results Mar 12, 2019 Apr 16, 2019
Fluoride 1025 Inorganic Chemical 1 of 5 results Jan 10, 2024 Jan 10, 2024
Chromium 1020 Inorganic Chemical 1 of 5 results May 5, 2014 May 5, 2014
Monobromoacetic Acid 2453 Organic Chemical 1 of 20 results Jun 8, 2010 Jun 8, 2010

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 151–158 of 158 samples, newest first — collected April 14, 1994 to April 14, 1994. The summary above covers all 158.

16 results from the 8 samples listed here: 9 detected, 7 not detected. 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 Coles Water Association #1, every result from 151 to 158 of 158 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 14, 1994
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
940419-018L
Laboratory
MSDH Lab
0.059 mg/l , sample collected Apr 14, 1994, sampling point DS000 Copper, Free 1022 Not recorded
0.009 mg/l , sample collected Apr 14, 1994, sampling point DS000 Lead 1030 Not recorded
Collected
Apr 14, 1994
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
940419-017L
Laboratory
MSDH Lab
Not detected below 0.02 mg/l Method Detection Limit , sample collected Apr 14, 1994, sampling point DS000 Copper, Free 1022 Not recorded
0.001 mg/l , sample collected Apr 14, 1994, sampling point DS000 Lead 1030 Not recorded
Collected
Apr 14, 1994
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
940419-016L
Laboratory
MSDH Lab
Not detected below 0.02 mg/l Method Detection Limit , sample collected Apr 14, 1994, sampling point DS000 Copper, Free 1022 Not recorded
0.001 mg/l , sample collected Apr 14, 1994, sampling point DS000 Lead 1030 Not recorded
Collected
Apr 14, 1994
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
940419-012L
Laboratory
MSDH Lab
Not detected below 0.02 mg/l Method Detection Limit , sample collected Apr 14, 1994, sampling point DS000 Copper, Free 1022 Not recorded
0.002 mg/l , sample collected Apr 14, 1994, sampling point DS000 Lead 1030 Not recorded
Collected
Apr 14, 1994
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
940419-011L
Laboratory
MSDH Lab
Not detected below 0.02 mg/l Method Detection Limit , sample collected Apr 14, 1994, sampling point DS000 Copper, Free 1022 Not recorded
0.001 mg/l , sample collected Apr 14, 1994, sampling point DS000 Lead 1030 Not recorded
Collected
Apr 14, 1994
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
940419-010L
Laboratory
MSDH Lab
Not detected below 0.02 mg/l Method Detection Limit , sample collected Apr 14, 1994, sampling point DS000 Copper, Free 1022 Not recorded
Not detected below 0.001 mg/l Method Detection Limit , sample collected Apr 14, 1994, sampling point DS000 Lead 1030 Not recorded
Collected
Apr 14, 1994
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
940419-006L
Laboratory
MSDH Lab
Not detected below 0.02 mg/l Method Detection Limit , sample collected Apr 14, 1994, sampling point DS000 Copper, Free 1022 Not recorded
0.002 mg/l , sample collected Apr 14, 1994, sampling point DS000 Lead 1030 Not recorded
Collected
Apr 14, 1994
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
940419-005L
Laboratory
MSDH Lab
0.145 mg/l , sample collected Apr 14, 1994, sampling point DS000 Copper, Free 1022 Not recorded
0.002 mg/l , sample collected Apr 14, 1994, sampling point DS000 Lead 1030 Not recorded

Routine (8).