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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 131–140 of 405 samples, newest first — collected June 25, 2014 to September 12, 2016. The summary above covers all 405.

25 results from the 10 samples listed here: 10 detected, 15 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.

We withheld the location of 1 sampling point 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 C S & I Water Assn #1, every result from 131 to 140 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
Sep 12, 2016 06:15
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
160913-021PB
Laboratory
MSDH Lab
0.0045 mg/l , sample collected Sep 12, 2016 06:15, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 12, 2016 06:15, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Sep 12, 2016 06:20
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
160913-020PB
Laboratory
MSDH Lab
0.3593 mg/l , sample collected Sep 12, 2016 06:20, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.002 mg/l , sample collected Sep 12, 2016 06:20, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Sep 11, 2016 06:15
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
160913-019PB
Laboratory
MSDH Lab
0.0169 mg/l , sample collected Sep 11, 2016 06:15, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0016 mg/l , sample collected Sep 11, 2016 06:15, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Mar 21, 2016 14:20
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
160322-082NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 21, 2016 14:20, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 21, 2016 14:20, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 21, 2016 14:20, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Collected
Mar 21, 2016 16:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
160322-079NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 21, 2016 16:00, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 21, 2016 16:00, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 21, 2016 16:00, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Collected
Jan 26, 2015 14:40
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
150127-083NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 26, 2015 14:40, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 26, 2015 14:40, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 26, 2015 14:40, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Collected
Jan 26, 2015 14:20
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
150127-082NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 26, 2015 14:20, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 26, 2015 14:20, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 26, 2015 14:20, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2015 – Dec 31, 2015
Collected
Jul 7, 2014 02:39
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
140708-025CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jul 7, 2014 02:39, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2014 – Dec 31, 2016
Collected
Jul 7, 2014 02:35
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
140708-012CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jul 7, 2014 02:35, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2014 – Dec 31, 2016
Collected
Jun 25, 2014 02:34
Sampling point
SMT Location withheld
Sample type
Routine
Lab sample
140626-007TH
Laboratory
MSDH Lab
36.3 ug/l , sample collected Jun 25, 2014 02:34, sampling point SMT Chloroform 2941 EPA method 524.2 Not recorded
1.16 ug/l , sample collected Jun 25, 2014 02:34, sampling point SMT Bromoform 2942 EPA method 524.2 Not recorded
25.3 ug/l , sample collected Jun 25, 2014 02:34, sampling point SMT Bromodichloromethane 2943 EPA method 524.2 Not recorded
16.8 ug/l , sample collected Jun 25, 2014 02:34, sampling point SMT Dibromochloromethane 2944 EPA method 524.2 Not recorded
79.6 ug/l , sample collected Jun 25, 2014 02:34, sampling point SMT TTHM 2950 EPA method 524.2 Not recorded

Routine (10).