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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

MS0380001 , Clarkdale Water Assn # 1

40 of the 73 analytes this system has been tested for have been detected at least once, across 484 samples on record.

The other 33 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 484 samples on record, detections range from October 1, 2003 to February 24, 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 Clarkdale Water Assn # 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 142 of 142 results Aug 27, 2007 Jul 31, 2024
Lead 1030 Inorganic Chemical 72 of 142 results Aug 27, 2007 Jul 31, 2024
Barium 1010 Inorganic Chemical 41 of 41 results Oct 1, 2003 Feb 24, 2025
TTHM 2950 Organic Chemical 18 of 18 results Jun 21, 2004 Nov 13, 2024
Xylenes, Total 2955 Organic Chemical 18 of 87 results Aug 9, 2004 Jan 31, 2023
Chromium 1020 Inorganic Chemical 15 of 41 results Oct 1, 2003 Apr 28, 2020
Sodium 1052 Inorganic Chemical 14 of 14 results Feb 11, 2010 Feb 10, 2025
Chloroform 2941 Organic Chemical 12 of 13 results Aug 14, 2007 Nov 13, 2024
Bromodichloromethane 2943 Organic Chemical 12 of 13 results Aug 14, 2007 Nov 13, 2024
Dibromochloromethane 2944 Organic Chemical 12 of 13 results Aug 14, 2007 Nov 13, 2024
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 11 of 19 results Aug 14, 2007 Aug 12, 2024
Sulfate 1055 Inorganic Chemical 10 of 10 results Oct 1, 2003 Feb 11, 2010
Fluoride 1025 Inorganic Chemical 8 of 43 results Mar 1, 2004 Feb 24, 2025
Bromoform 2942 Organic Chemical 6 of 13 results Jun 25, 2013 Nov 13, 2024
Dichloroacetic Acid 2451 Organic Chemical 5 of 13 results Sep 21, 2009 Aug 12, 2024
Trichloroacetic Acid 2452 Organic Chemical 5 of 13 results Sep 21, 2009 Aug 12, 2024
Dibromoacetic Acid 2454 Organic Chemical 5 of 13 results Sep 21, 2009 Sep 8, 2020
Ethylbenzene 2992 Organic Chemical 4 of 87 results Nov 1, 2004 Aug 28, 2017
Nickel 1036 Inorganic Chemical 4 of 41 results Feb 27, 2006 Mar 31, 2014
Monochloroacetic Acid 2450 Organic Chemical 3 of 13 results Sep 21, 2009 Aug 28, 2018
Dichloromethane 2964 Organic Chemical 3 of 87 results Aug 9, 2004 Aug 9, 2004
Monobromoacetic Acid 2453 Organic Chemical 2 of 13 results Aug 28, 2018 Sep 8, 2020
Calcium 1016 Inorganic Chemical 2 of 2 results Feb 11, 2010 Feb 11, 2010
Chloride 1017 Inorganic Chemical 2 of 2 results Feb 11, 2010 Feb 11, 2010
Magnesium 1031 Inorganic Chemical 2 of 2 results Feb 11, 2010 Feb 11, 2010
Manganese 1032 Inorganic Chemical 2 of 2 results Feb 11, 2010 Feb 11, 2010
Potassium 1042 Inorganic Chemical 2 of 2 results Feb 11, 2010 Feb 11, 2010
Residue, Total, Filterable 1057 Water Quality 2 of 2 results Feb 11, 2010 Feb 11, 2010
Alkalinity, Caco3 Stability 1067 Water Quality 2 of 2 results Feb 11, 2010 Feb 11, 2010
Carbon Dioxide 1901 Water Quality 2 of 2 results Feb 11, 2010 Feb 11, 2010
Color 1905 Water Quality 2 of 2 results Feb 11, 2010 Feb 11, 2010
Hardness, Total (As Caco3) 1915 Water Quality 2 of 2 results Feb 11, 2010 Feb 11, 2010
Alkalinity, Total 1927 Water Quality 2 of 2 results Feb 11, 2010 Feb 11, 2010
Iron, Field Result FEFD Inorganic Chemical 2 of 2 results Feb 11, 2010 Feb 11, 2010
Calculated Sodium NACA Water Quality 2 of 2 results Feb 11, 2010 Feb 11, 2010
PH, Field Result PHFD Water Quality 2 of 2 results Feb 11, 2010 Feb 11, 2010
Iron 1028 Inorganic Chemical 1 of 2 results Feb 11, 2010 Feb 11, 2010
Cadmium 1015 Inorganic Chemical 1 of 41 results Feb 27, 2006 Feb 27, 2006
Selenium 1045 Inorganic Chemical 1 of 41 results Feb 27, 2006 Feb 27, 2006
Toluene 2991 Organic Chemical 1 of 87 results Aug 9, 2004 Aug 9, 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 1–10 of 484 samples, newest first — collected February 24, 2025 to September 30, 2025. The summary above covers all 484.

48 results from the 10 samples listed here: 4 detected, 44 not detected. Across the whole record it is 454 of 3,196. 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 Clarkdale Water Assn # 1, every result from 1 to 10 of 484 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
Sep 30, 2025 08:45
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
CN-251001-014
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 30, 2025 08:45, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
Sep 30, 2025 09:15
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
CN-251001-015
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 30, 2025 09:15, sampling point TF104 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
Sep 30, 2025 08:30
Sampling point
TF106 Treatment Facility TF106
Sample type
Routine
Lab sample
CN-251001-013
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 30, 2025 08:30, sampling point TF106 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
Mar 3, 2025 11:11
Sampling point
TF106 Treatment Facility TF106
Sample type
Routine
Lab sample
NI-250304-004
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 3, 2025 11:11, sampling point TF106 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 3, 2025 11:11, sampling point TF106 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 3, 2025 11:11, sampling point TF106 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Mar 3, 2025 10:50
Sampling point
TF105 Treatment Facility 105
Sample type
Routine
Lab sample
NI-250304-003
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 3, 2025 10:50, sampling point TF105 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 3, 2025 10:50, sampling point TF105 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 3, 2025 10:50, sampling point TF105 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Mar 3, 2025 10:10
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
NI-250304-002
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 3, 2025 10:10, sampling point TF104 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 3, 2025 10:10, sampling point TF104 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 3, 2025 10:10, sampling point TF104 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Mar 3, 2025 10:35
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-250304-001
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 3, 2025 10:35, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 3, 2025 10:35, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 3, 2025 10:35, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Feb 24, 2025 12:30
Sampling point
TF106 Treatment Facility TF106
Sample type
Routine
Lab sample
IN-250225-035
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:30, sampling point TF106 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0308 mg/l , sample collected Feb 24, 2025 12:30, sampling point TF106 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:30, sampling point TF106 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:30, sampling point TF106 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:30, sampling point TF106 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:30, sampling point TF106 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:30, sampling point TF106 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:30, sampling point TF106 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:30, sampling point TF106 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:30, sampling point TF106 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:30, sampling point TF106 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 24, 2025 13:00
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
IN-250225-034
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 13:00, sampling point TF104 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0062 mg/l , sample collected Feb 24, 2025 13:00, sampling point TF104 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 13:00, sampling point TF104 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 13:00, sampling point TF104 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.107 mg/l , sample collected Feb 24, 2025 13:00, sampling point TF104 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 13:00, sampling point TF104 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 13:00, sampling point TF104 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 13:00, sampling point TF104 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 13:00, sampling point TF104 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 13:00, sampling point TF104 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 13:00, sampling point TF104 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 24, 2025 12:35
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
IN-250225-033
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:35, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0062 mg/l , sample collected Feb 24, 2025 12:35, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:35, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:35, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:35, sampling point TF102 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:35, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:35, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:35, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:35, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:35, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 24, 2025 12:35, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025

Routine (10).