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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

MS0040005 , McAdams Water Association

36 of the 73 analytes this system has been tested for have been detected at least once, across 251 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 251 samples on record, detections range from August 16, 1993 to December 17, 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 McAdams 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 71 of 129 results Aug 16, 1993 Sep 23, 2025
Lead 1030 Inorganic Chemical 58 of 129 results Aug 17, 1993 Sep 23, 2025
TTHM 2950 Organic Chemical 18 of 23 results May 3, 2004 Dec 17, 2025
Chloroform 2941 Organic Chemical 12 of 17 results Jun 28, 2007 Dec 17, 2025
Barium 1010 Inorganic Chemical 12 of 12 results Jan 29, 2002 Feb 26, 2025
Bromodichloromethane 2943 Organic Chemical 10 of 17 results Jun 28, 2007 Dec 17, 2025
Nickel 1036 Inorganic Chemical 9 of 12 results Jan 12, 2004 Feb 26, 2025
Dibromochloromethane 2944 Organic Chemical 8 of 17 results Jun 28, 2007 Sep 25, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 6 of 23 results Jun 28, 2007 Mar 12, 2024
Sodium 1052 Inorganic Chemical 5 of 5 results Sep 16, 2008 Oct 30, 2024
Chromium 1020 Inorganic Chemical 5 of 12 results Jan 29, 2002 Nov 6, 2018
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 13, 2011 Jul 10, 2012
Dichloroacetic Acid 2451 Organic Chemical 4 of 16 results Jul 15, 2008 Sep 25, 2025
Selenium 1045 Inorganic Chemical 3 of 12 results Jan 25, 2005 Mar 19, 2008
Calcium 1016 Inorganic Chemical 2 of 2 results Sep 16, 2008 Sep 16, 2008
Iron 1028 Inorganic Chemical 2 of 2 results Sep 16, 2008 Sep 16, 2008
Magnesium 1031 Inorganic Chemical 2 of 2 results Sep 16, 2008 Sep 16, 2008
Manganese 1032 Inorganic Chemical 2 of 2 results Sep 16, 2008 Sep 16, 2008
Potassium 1042 Inorganic Chemical 2 of 2 results Sep 16, 2008 Sep 16, 2008
Residue, Total, Filterable 1057 Water Quality 2 of 2 results Sep 16, 2008 Sep 16, 2008
Alkalinity, Caco3 Stability 1067 Water Quality 2 of 2 results Sep 16, 2008 Sep 16, 2008
Carbon Dioxide 1901 Water Quality 2 of 2 results Sep 16, 2008 Sep 16, 2008
Color 1905 Water Quality 2 of 2 results Sep 16, 2008 Sep 16, 2008
Hardness, Total (As Caco3) 1915 Water Quality 2 of 2 results Sep 16, 2008 Sep 16, 2008
PH 1925 Water Quality 2 of 2 results Sep 16, 2008 Sep 16, 2008
Alkalinity, Total 1927 Water Quality 2 of 2 results Sep 16, 2008 Sep 16, 2008
Iron, Field Result FEFD Inorganic Chemical 2 of 2 results Sep 16, 2008 Sep 16, 2008
Calculated Sodium NACA Water Quality 2 of 2 results Sep 16, 2008 Sep 16, 2008
PH, Field Result PHFD Water Quality 2 of 2 results Sep 16, 2008 Sep 16, 2008
Fluoride 1025 Inorganic Chemical 2 of 12 results Jan 25, 2005 Mar 19, 2008
Cadmium 1015 Inorganic Chemical 2 of 12 results Jan 25, 2005 Jan 23, 2006
Sulfate 1055 Inorganic Chemical 2 of 2 results Jan 29, 2002 Jan 12, 2004
Xylenes, Total 2955 Organic Chemical 1 of 27 results Sep 26, 2011 Sep 26, 2011
Temperature, Field Result TEMP Water Quality 1 of 1 result Sep 16, 2008 Sep 16, 2008
Nitrate-Nitrite 1038 Inorganic Chemical 1 of 22 results Jul 27, 2005 Jul 27, 2005
Nitrate 1040 Inorganic Chemical 1 of 22 results Jul 27, 2005 Jul 27, 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 151–160 of 251 samples, newest first — collected January 25, 2005 to July 19, 2007. The summary above covers all 251.

33 results from the 10 samples listed here: 16 detected, 17 not detected. Across the whole record it is 266 of 1,289. 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 McAdams Water Association, every result from 151 to 160 of 251 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
Jul 19, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070720-239PB
Laboratory
MSDH Lab
0.0591 mg/l , sample collected Jul 19, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.0011 mg/l , sample collected Jul 19, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jul 19, 2007
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
070720-381PB
Laboratory
MSDH Lab
0.2756 mg/l , sample collected Jul 19, 2007, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
0.001 mg/l , sample collected Jul 19, 2007, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2006 – Dec 31, 2008
Collected
Jun 28, 2007
Sampling point
MRT000 4201 Ar 4171 Kosciusko
Sample type
Routine
Lab sample
070629-005HA
Laboratory
MSDH Lab
0.0038 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 28, 2007, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2005 – Dec 31, 2007
Collected
Jun 28, 2007
Sampling point
MRT000 4201 Ar 4171 Kosciusko
Sample type
Routine
Lab sample
070629-005TH
Laboratory
MSDH Lab
2.89 ug/l , sample collected Jun 28, 2007, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 28, 2007, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
1.79 ug/l , sample collected Jun 28, 2007, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
1.08 ug/l , sample collected Jun 28, 2007, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
5.76 ug/l , sample collected Jun 28, 2007, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2005 – Dec 31, 2007
Collected
Apr 9, 2007
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
070410-059NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 9, 2007, sampling point TF080 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 9, 2007, sampling point TF080 Nitrate 1040 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 9, 2007, sampling point TF080 Nitrite 1041 EPA method 353.2 Jan 1, 2007 – Dec 31, 2007
Collected
Jun 12, 2006
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
060613-147NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jun 12, 2006, sampling point TF080 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 12, 2006, sampling point TF080 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 12, 2006, sampling point TF080 Nitrite 1041 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Collected
Jan 23, 2006
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
060124-082CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Jan 23, 2006, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Jan 23, 2006
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
060124-064IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 23, 2006, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.08213 mg/l , sample collected Jan 23, 2006, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.00035 mg/l , sample collected Jan 23, 2006, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.001048 mg/l , sample collected Jan 23, 2006, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 23, 2006, sampling point TF080 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Jan 23, 2006, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.001268 mg/l , sample collected Jan 23, 2006, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
0.002169 mg/l , sample collected Jan 23, 2006, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 23, 2006, sampling point TF080 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 Jan 23, 2006, sampling point TF080 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 Jan 23, 2006, sampling point TF080 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 Jan 23, 2006, sampling point TF080 Uranium-238 4009 Not recorded
Collected
Jul 27, 2005
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
050728-097NI
Laboratory
MSDH Lab
0.1 mg/l , sample collected Jul 27, 2005, sampling point TF080 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
0.1 mg/l , sample collected Jul 27, 2005, sampling point TF080 Nitrate 1040 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jul 27, 2005, sampling point TF080 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
Jan 25, 2005
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
050126-004CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Jan 25, 2005, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007

Routine (10).