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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

MS0380002 , Collinsville Water Assn

18 of the 57 analytes this system has been tested for have been detected at least once, across 232 samples on record.

The other 39 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 232 samples on record, detections range from September 29, 2003 to April 7, 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 Collinsville Water Assn, 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 60 of 60 results Jul 31, 2007 Sep 6, 2023
Barium 1010 Inorganic Chemical 20 of 20 results Sep 29, 2003 Feb 12, 2024
Nitrate 1040 Inorganic Chemical 14 of 42 results May 26, 2004 Sep 6, 2022
Fluoride 1025 Inorganic Chemical 13 of 20 results Mar 21, 2005 Oct 23, 2023
Nitrate-Nitrite 1038 Inorganic Chemical 13 of 42 results May 26, 2004 Sep 6, 2022
Nickel 1036 Inorganic Chemical 8 of 20 results Mar 3, 2004 Feb 12, 2024
Chromium 1020 Inorganic Chemical 6 of 20 results Sep 29, 2003 Mar 24, 2020
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 5 of 19 results Sep 24, 2009 Apr 7, 2025
Sodium 1052 Inorganic Chemical 4 of 4 results Sep 16, 2019 Feb 10, 2025
TTHM 2950 Organic Chemical 4 of 20 results Aug 15, 2007 Sep 9, 2024
Lead 1030 Inorganic Chemical 4 of 60 results Jul 31, 2007 Jul 21, 2020
Sulfate 1055 Inorganic Chemical 4 of 4 results Sep 29, 2003 Mar 3, 2004
Chloroform 2941 Organic Chemical 2 of 14 results Sep 9, 2024 Sep 9, 2024
Nitrite 1041 Inorganic Chemical 2 of 42 results Aug 15, 2005 Aug 15, 2005
Dichloromethane 2964 Organic Chemical 2 of 30 results Aug 10, 2004 Aug 10, 2004
Bromodichloromethane 2943 Organic Chemical 1 of 14 results Sep 9, 2024 Sep 9, 2024
Dichloroacetic Acid 2451 Organic Chemical 1 of 13 results Jun 22, 2020 Jun 22, 2020
Monobromoacetic Acid 2453 Organic Chemical 1 of 13 results Jun 22, 2020 Jun 22, 2020

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 11–20 of 232 samples, newest first — collected August 29, 2023 to September 9, 2024. The summary above covers all 232.

55 results from the 10 samples listed here: 13 detected, 42 not detected. Across the whole record it is 164 of 1,356. 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 5 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 Collinsville Water Assn, every result from 11 to 20 of 232 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 9, 2024 13:47
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-119474-2
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Sep 9, 2024 13:47, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 9, 2024 13:47, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 9, 2024 13:47, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 9, 2024 13:47, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 9, 2024 13:47, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Sep 9, 2024 13:47, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jul 1, 2024 – Sep 30, 2024
1.3 ug/l , sample collected Sep 9, 2024 13:47, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 9, 2024 13:47, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
0.76 ug/l , sample collected Sep 9, 2024 13:47, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 9, 2024 13:47, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
2.06 ug/l , sample collected Sep 9, 2024 13:47, sampling point SM1 TTHM 2950 EPA method 524.2 Jul 1, 2024 – Sep 30, 2024
Collected
Sep 9, 2024 13:21
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-119474-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Sep 9, 2024 13:21, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 9, 2024 13:21, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 9, 2024 13:21, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 9, 2024 13:21, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 9, 2024 13:21, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 2 ug/l Minimum Reporting Level , sample collected Sep 9, 2024 13:21, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jul 1, 2024 – Sep 30, 2024
0.66 ug/l , sample collected Sep 9, 2024 13:21, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 9, 2024 13:21, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 9, 2024 13:21, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 9, 2024 13:21, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
0.66 ug/l , sample collected Sep 9, 2024 13:21, sampling point SM2 TTHM 2950 EPA method 524.2 Jul 1, 2024 – Sep 30, 2024
Collected
May 13, 2024 13:02
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-240514-007
Laboratory
MSDH Lab
1.02 ug/l , sample collected May 13, 2024 13:02, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
Collected
May 13, 2024 13:02
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-240514-007
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected May 13, 2024 13:02, sampling point MRT000 TTHM 2950 EPA method 524.2 Not recorded
Collected
Mar 25, 2024 12:15
Sampling point
TF082 Treatment Facility TF082
Sample type
Routine
Lab sample
NI-240326-063
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 25, 2024 12:15, sampling point TF082 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 25, 2024 12:15, sampling point TF082 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 25, 2024 12:15, sampling point TF082 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Feb 12, 2024 12:15
Sampling point
TF082 Treatment Facility TF082
Sample type
Routine
Lab sample
IN-240213-026
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2024 12:15, sampling point TF082 Arsenic 1005 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
0.0378 mg/l , sample collected Feb 12, 2024 12:15, sampling point TF082 Barium 1010 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2024 12:15, sampling point TF082 Cadmium 1015 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2024 12:15, sampling point TF082 Chromium 1020 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 12, 2024 12:15, sampling point TF082 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2024 – Dec 31, 2026
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2024 12:15, sampling point TF082 Mercury 1035 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
0.0006 mg/l , sample collected Feb 12, 2024 12:15, sampling point TF082 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 12, 2024 12:15, sampling point TF082 Selenium 1045 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2024 12:15, sampling point TF082 Antimony, Total 1074 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2024 12:15, sampling point TF082 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 12, 2024 12:15, sampling point TF082 Thallium, Total 1085 EPA method 200.8 Jan 1, 2024 – Dec 31, 2026
Collected
Oct 23, 2023 11:07
Sampling point
TF082 Treatment Facility TF082
Sample type
Routine
Lab sample
IN-231024-034
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 23, 2023 11:07, sampling point TF082 Arsenic 1005 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.0964 mg/l , sample collected Oct 23, 2023 11:07, sampling point TF082 Barium 1010 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 23, 2023 11:07, sampling point TF082 Cadmium 1015 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 23, 2023 11:07, sampling point TF082 Chromium 1020 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
0.105 mg/l , sample collected Oct 23, 2023 11:07, sampling point TF082 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2021 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 23, 2023 11:07, sampling point TF082 Mercury 1035 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 23, 2023 11:07, sampling point TF082 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Oct 23, 2023 11:07, sampling point TF082 Selenium 1045 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 23, 2023 11:07, sampling point TF082 Antimony, Total 1074 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 23, 2023 11:07, sampling point TF082 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 23, 2023 11:07, sampling point TF082 Thallium, Total 1085 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Sep 6, 2023 07:00
Sampling point
LC0004 Location withheld
Sample type
Routine
Lab sample
PB-230907-001
Laboratory
MSDH Lab
0.206 mg/l , sample collected Sep 6, 2023 07:00, sampling point LC0004 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 6, 2023 07:00, sampling point LC0004 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 29, 2023 06:42
Sampling point
LC0001 Location withheld
Sample type
Routine
Lab sample
PB-230830-123
Laboratory
MSDH Lab
0.264 mg/l , sample collected Aug 29, 2023 06:42, sampling point LC0001 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 29, 2023 06:42, sampling point LC0001 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 29, 2023 07:00
Sampling point
LC0006 Location withheld
Sample type
Routine
Lab sample
PB-230830-122
Laboratory
MSDH Lab
0.0358 mg/l , sample collected Aug 29, 2023 07:00, sampling point LC0006 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 29, 2023 07:00, sampling point LC0006 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023

Routine (10).