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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 21–30 of 232 samples, newest first — collected June 5, 2023 to August 29, 2023. The summary above covers all 232.

17 results from the 10 samples listed here: 7 detected, 10 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 7 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 21 to 30 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
Aug 29, 2023 06:00
Sampling point
LC0007 Location withheld
Sample type
Routine
Lab sample
PB-230830-121
Laboratory
MSDH Lab
0.137 mg/l , sample collected Aug 29, 2023 06:00, sampling point LC0007 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 06:00, sampling point LC0007 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 29, 2023 07:00
Sampling point
LC0017 Location withheld
Sample type
Routine
Lab sample
PB-230830-120
Laboratory
MSDH Lab
0.192 mg/l , sample collected Aug 29, 2023 07:00, sampling point LC0017 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 LC0017 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 29, 2023 06:00
Sampling point
LC0018 Location withheld
Sample type
Routine
Lab sample
PB-230830-119
Laboratory
MSDH Lab
0.19 mg/l , sample collected Aug 29, 2023 06:00, sampling point LC0018 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 06:00, sampling point LC0018 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 29, 2023 04:20
Sampling point
LC0019 Location withheld
Sample type
Routine
Lab sample
PB-230830-118
Laboratory
MSDH Lab
0.232 mg/l , sample collected Aug 29, 2023 04:20, sampling point LC0019 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 04:20, sampling point LC0019 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 29, 2023 06:25
Sampling point
LC0020 Location withheld
Sample type
Routine
Lab sample
PB-230830-117
Laboratory
MSDH Lab
0.0252 mg/l , sample collected Aug 29, 2023 06:25, sampling point LC0020 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 06:25, sampling point LC0020 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 29, 2023 08:00
Sampling point
LC0022 Location withheld
Sample type
Routine
Lab sample
PB-230830-115
Laboratory
MSDH Lab
0.249 mg/l , sample collected Aug 29, 2023 08:00, sampling point LC0022 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 08:00, sampling point LC0022 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 29, 2023 07:00
Sampling point
LC0011 Location withheld
Sample type
Routine
Lab sample
PB-230830-114
Laboratory
MSDH Lab
0.181 mg/l , sample collected Aug 29, 2023 07:00, sampling point LC0011 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 LC0011 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Aug 14, 2023 12:42
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-230815-009
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 14, 2023 12:42, sampling point MRT000 TTHM 2950 EPA method 524.2 Not recorded
Collected
Jul 10, 2023 13:22
Sampling point
TF082 Treatment Facility TF082
Sample type
Routine
Lab sample
CN-230711-030
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jul 10, 2023 13:22, sampling point TF082 Cyanide 1024 EPA method QC10204001X Jan 1, 2021 – Dec 31, 2023
Collected
Jun 5, 2023 13:05
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-230608-020
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 5, 2023 13:05, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded

Routine (10).