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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

MS0110002 , C S & I Water Assn #1

31 of the 59 analytes this system has been tested for have been detected at least once, across 405 samples on record.

The other 28 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 405 samples on record, detections range from November 3, 1993 to August 4, 2026. 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 C S & I 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 132 of 144 results Nov 3, 1993 Aug 4, 2026
Lead 1030 Inorganic Chemical 111 of 144 results Nov 3, 1993 Aug 4, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 48 of 51 results May 19, 2004 Oct 8, 2025
TTHM 2950 Organic Chemical 48 of 52 results May 19, 2004 Oct 8, 2025
Chloroform 2941 Organic Chemical 34 of 35 results Sep 14, 2006 Oct 8, 2025
Bromodichloromethane 2943 Organic Chemical 32 of 36 results Sep 14, 2006 Oct 8, 2025
Dichloroacetic Acid 2451 Organic Chemical 31 of 31 results Jan 30, 2008 Oct 8, 2025
Dibromochloromethane 2944 Organic Chemical 31 of 36 results Sep 14, 2006 Oct 8, 2025
Trichloroacetic Acid 2452 Organic Chemical 29 of 31 results Jan 30, 2008 Oct 8, 2025
Barium 1010 Inorganic Chemical 25 of 25 results Mar 12, 2002 Jan 13, 2025
Fluoride 1025 Inorganic Chemical 25 of 25 results Mar 12, 2002 Jan 13, 2025
Dibromoacetic Acid 2454 Organic Chemical 22 of 31 results Jan 30, 2008 Oct 8, 2025
Bromoform 2942 Organic Chemical 20 of 36 results Sep 14, 2006 Oct 8, 2025
Chromium 1020 Inorganic Chemical 19 of 25 results Jan 28, 2004 Jan 13, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 14 of 14 results Dec 7, 2011 Jul 12, 2012
Monochloroacetic Acid 2450 Organic Chemical 11 of 31 results Jan 30, 2008 Jan 4, 2010
Monobromoacetic Acid 2453 Organic Chemical 7 of 31 results Jan 14, 2009 Feb 14, 2011
Arsenic 1005 Inorganic Chemical 6 of 25 results Jan 25, 2006 Jan 13, 2025
Nickel 1036 Inorganic Chemical 6 of 25 results Jan 25, 2006 Jan 13, 2025
Selenium 1045 Inorganic Chemical 6 of 25 results Feb 14, 2005 Mar 26, 2008
Xylenes, Total 2955 Organic Chemical 5 of 31 results May 18, 2021 Feb 26, 2024
Sodium 1052 Inorganic Chemical 4 of 4 results Apr 12, 2021 Oct 14, 2024
Vinyl Chloride 2976 Organic Chemical 4 of 31 results Apr 25, 2018 Oct 3, 2023
Gross Alpha, Excl. Radon & U 4000 Radionuclide 3 of 4 results Mar 22, 2012 Jun 13, 2012
Gross Alpha Particle Activity 4109 Radionuclide 3 of 4 results Mar 22, 2012 Jun 13, 2012
Sulfate 1055 Inorganic Chemical 3 of 5 results Mar 12, 2002 Jan 28, 2004
Combined Uranium 4006 Radionuclide 2 of 16 results Jun 13, 2012 Jun 13, 2012
Ethylbenzene 2992 Organic Chemical 1 of 31 results May 18, 2021 May 18, 2021
Combined Radium (-226 & -228) 4010 Radionuclide 1 of 18 results Mar 22, 2012 Mar 22, 2012
Radium-226 4020 Radionuclide 1 of 18 results Mar 22, 2012 Mar 22, 2012
Radium-228 4030 Radionuclide 1 of 18 results Mar 22, 2012 Mar 22, 2012

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 281–290 of 405 samples, newest first — collected January 25, 2006 to April 25, 2007. The summary above covers all 405.

48 results from the 10 samples listed here: 25 detected, 23 not detected. Across the whole record it is 685 of 1,879. 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 C S & I Water Assn #1, every result from 281 to 290 of 405 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 25, 2007
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
070426-009TH
Laboratory
MSDH Lab
25.1 ug/l , sample collected Apr 25, 2007, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
1.13 ug/l , sample collected Apr 25, 2007, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
17.7 ug/l , sample collected Apr 25, 2007, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
10.8 ug/l , sample collected Apr 25, 2007, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
54.73 ug/l , sample collected Apr 25, 2007, sampling point MRT000 TTHM 2950 EPA method 524.2 Apr 1, 2007 – Jun 30, 2007
Collected
Feb 21, 2007
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
070222-008TH
Laboratory
MSDH Lab
53.6 ug/l , sample collected Feb 21, 2007, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
2.54 ug/l , sample collected Feb 21, 2007, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
49 ug/l , sample collected Feb 21, 2007, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
30.8 ug/l , sample collected Feb 21, 2007, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
135.94 ug/l , sample collected Feb 21, 2007, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2007 – Mar 31, 2007
Collected
Feb 21, 2007
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
070222-009HA
Laboratory
MSDH Lab
0.041 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 Feb 21, 2007, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2007 – Mar 31, 2007
Collected
Sep 14, 2006
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
060915-002TH
Laboratory
MSDH Lab
70.5 ug/l , sample collected Sep 14, 2006, sampling point MRT000 Chloroform 2941 EPA method 551.1 Not recorded
2.59 ug/l , sample collected Sep 14, 2006, sampling point MRT000 Bromoform 2942 EPA method 551.1 Not recorded
52.9 ug/l , sample collected Sep 14, 2006, sampling point MRT000 Bromodichloromethane 2943 EPA method 551.1 Not recorded
30.7 ug/l , sample collected Sep 14, 2006, sampling point MRT000 Dibromochloromethane 2944 EPA method 551.1 Not recorded
156.69 ug/l , sample collected Sep 14, 2006, sampling point MRT000 TTHM 2950 EPA method 551.1 Jul 1, 2006 – Sep 30, 2006
Collected
Jun 5, 2006
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
060606-029NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jun 5, 2006, sampling point TF103 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 5, 2006, sampling point TF103 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 5, 2006, sampling point TF103 Nitrite 1041 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Collected
Jun 5, 2006
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
060606-065NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jun 5, 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 5, 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 5, 2006, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2006 – Dec 31, 2006
Collected
May 2, 2006
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
060503-001CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected May 2, 2006, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Jan 25, 2006
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
060126-050IN
Laboratory
MSDH Lab
0.000602 mg/l , sample collected Jan 25, 2006, sampling point TF103 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.023339 mg/l , sample collected Jan 25, 2006, sampling point TF103 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Jan 25, 2006, sampling point TF103 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 25, 2006, sampling point TF103 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
1.261861 mg/l , sample collected Jan 25, 2006, sampling point TF103 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 25, 2006, sampling point TF103 Mercury 1035 EPA method 245.1 Jan 1, 2005 – Dec 31, 2007
0.014038 mg/l , sample collected Jan 25, 2006, sampling point TF103 Nickel 1036 EPA method 200.8 Not recorded
0.00366 mg/l , sample collected Jan 25, 2006, sampling point TF103 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 25, 2006, sampling point TF103 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 25, 2006, sampling point TF103 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 25, 2006, sampling point TF103 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 25, 2006, sampling point TF103 Uranium-238 4009 Not recorded
Collected
Jan 25, 2006
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
060126-017CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Jan 25, 2006, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Jan 25, 2006
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
060126-049IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 25, 2006, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.016645 mg/l , sample collected Jan 25, 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 Jan 25, 2006, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.004827 mg/l , sample collected Jan 25, 2006, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.818626 mg/l , sample collected Jan 25, 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 Jan 25, 2006, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 25, 2006, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
0.001628 mg/l , sample collected Jan 25, 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 Jan 25, 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 Jan 25, 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 Jan 25, 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 Jan 25, 2006, sampling point TF101 Uranium-238 4009 Not recorded

Routine (10).