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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 61–70 of 405 samples, newest first — collected September 8, 2021 to January 11, 2022. The summary above covers all 405.

32 results from the 10 samples listed here: 7 detected, 25 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 2 sampling points 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 61 to 70 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
Jan 11, 2022 11:30
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
NI-220111-068
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 11, 2022 11:30, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 11, 2022 11:30, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 11, 2022 11:30, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Collected
Oct 20, 2021 12:07
Sampling point
TF104 Treatment Facility TF104
Sample type
Routine
Lab sample
VO-211021-001
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2021 12:07, sampling point TF104 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2021 12:07, sampling point TF104 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
2.5 ug/l , sample collected Oct 20, 2021 12:07, sampling point TF104 Xylenes, Total 2955 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2021 12:07, sampling point TF104 Dichloromethane 2964 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2021 12:07, sampling point TF104 O-Dichlorobenzene 2968 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2021 12:07, sampling point TF104 P-Dichlorobenzene 2969 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2021 12:07, sampling point TF104 Vinyl Chloride 2976 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2021 12:07, sampling point TF104 1,1-Dichloroethylene 2977 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2021 12:07, sampling point TF104 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2021 12:07, sampling point TF104 1,2-Dichloroethane 2980 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2021 12:07, sampling point TF104 1,1,1-Trichloroethane 2981 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2021 12:07, sampling point TF104 Carbon Tetrachloride 2982 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2021 12:07, sampling point TF104 1,2-Dichloropropane 2983 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2021 12:07, sampling point TF104 Trichloroethylene 2984 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2021 12:07, sampling point TF104 1,1,2-Trichloroethane 2985 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2021 12:07, sampling point TF104 Tetrachloroethylene 2987 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2021 12:07, sampling point TF104 Chlorobenzene 2989 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2021 12:07, sampling point TF104 Benzene 2990 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2021 12:07, sampling point TF104 Toluene 2991 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2021 12:07, sampling point TF104 Ethylbenzene 2992 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2021 12:07, sampling point TF104 Styrene 2996 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Collected
Oct 5, 2021 10:33
Sampling point
SMT Location withheld
Sample type
Routine
Lab sample
HA-211006-008
Laboratory
MSDH Lab
2.97 ug/l , sample collected Oct 5, 2021 10:33, sampling point SMT Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2021 – Dec 31, 2021
Collected
Oct 5, 2021 11:07
Sampling point
SMH Location withheld
Sample type
Routine
Lab sample
HA-211006-007
Laboratory
MSDH Lab
4.17 ug/l , sample collected Oct 5, 2021 11:07, sampling point SMH Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2021 – Dec 31, 2021
Collected
Oct 5, 2021 10:33
Sampling point
SMT Location withheld
Sample type
Routine
Lab sample
TH-211006-006
Laboratory
MSDH Lab
2.75 ug/l , sample collected Oct 5, 2021 10:33, sampling point SMT TTHM 2950 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Collected
Oct 5, 2021 11:07
Sampling point
SMH Location withheld
Sample type
Routine
Lab sample
TH-211006-005
Laboratory
MSDH Lab
2.81 ug/l , sample collected Oct 5, 2021 11:07, sampling point SMH TTHM 2950 EPA method 524.2 Oct 1, 2021 – Dec 31, 2021
Collected
Oct 4, 2021 10:40
Sampling point
TF104 Treatment Facility TF104
Sample type
Routine
Lab sample
RU-211004-022
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 4, 2021 10:40, sampling point TF104 Combined Uranium 4006 EPA method 200.8 Oct 1, 2021 – Dec 31, 2021
Collected
Sep 20, 2021 12:52
Sampling point
TF104 Treatment Facility TF104
Sample type
Routine
Lab sample
RU-210921-002
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 20, 2021 12:52, sampling point TF104 Combined Uranium 4006 EPA method 200.8 Jul 1, 2021 – Sep 30, 2021
Collected
Sep 8, 2021 12:20
Sampling point
SMT Location withheld
Sample type
Routine
Lab sample
HA-210909-012
Laboratory
MSDH Lab
14.5 ug/l , sample collected Sep 8, 2021 12:20, sampling point SMT Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jul 1, 2021 – Sep 30, 2021
Collected
Sep 8, 2021 12:00
Sampling point
SMH Location withheld
Sample type
Routine
Lab sample
HA-210909-011
Laboratory
MSDH Lab
5.82 ug/l , sample collected Sep 8, 2021 12:00, sampling point SMH Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jul 1, 2021 – Sep 30, 2021

Routine (10).