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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 71–80 of 232 samples, newest first — collected June 27, 2017 to April 1, 2019. The summary above covers all 232.

67 results from the 10 samples listed here: 2 detected, 65 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.

Chemical and radiological sample results for Collinsville Water Assn, every result from 71 to 80 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
Apr 1, 2019 14:43
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
190402-016NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 1, 2019 14:43, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 1, 2019 14:43, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 1, 2019 14:43, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Collected
Aug 29, 2018 02:05
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
180830-004HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 29, 2018 02:05, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 29, 2018 02:05, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 29, 2018 02:05, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 29, 2018 02:05, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 29, 2018 02:05, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 0.006 mg/l Minimum Reporting Level , sample collected Aug 29, 2018 02:05, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2017 – Dec 31, 2019
Collected
Aug 29, 2018 02:05
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
180830-004TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 29, 2018 02:05, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 29, 2018 02:05, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 29, 2018 02:05, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 29, 2018 02:05, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 4 ug/l Minimum Reporting Level , sample collected Aug 29, 2018 02:05, sampling point MRT000 TTHM 2950 Jan 1, 2017 – Dec 31, 2019
Collected
Jun 25, 2018 02:17
Sampling point
TF082 Treatment Facility TF082
Sample type
Routine
Lab sample
180626-006VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 25, 2018 02:17, sampling point TF082 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 25, 2018 02:17, sampling point TF082 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 25, 2018 02:17, sampling point TF082 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 25, 2018 02:17, sampling point TF082 Dichloromethane 2964 EPA method 524.2 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 25, 2018 02:17, sampling point TF082 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 25, 2018 02:17, sampling point TF082 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 25, 2018 02:17, sampling point TF082 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 25, 2018 02:17, sampling point TF082 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 25, 2018 02:17, sampling point TF082 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 25, 2018 02:17, sampling point TF082 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 25, 2018 02:17, sampling point TF082 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 25, 2018 02:17, sampling point TF082 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 25, 2018 02:17, sampling point TF082 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 25, 2018 02:17, sampling point TF082 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 25, 2018 02:17, sampling point TF082 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 25, 2018 02:17, sampling point TF082 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 25, 2018 02:17, sampling point TF082 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 25, 2018 02:17, sampling point TF082 Benzene 2990 EPA method 524.2 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 25, 2018 02:17, sampling point TF082 Toluene 2991 EPA method 524.2 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 25, 2018 02:17, sampling point TF082 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2018 – Dec 31, 2018
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 25, 2018 02:17, sampling point TF082 Styrene 2996 EPA method 524.2 Jan 1, 2018 – Dec 31, 2018
Collected
Feb 27, 2018 14:25
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
180228-009NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 27, 2018 14:25, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 27, 2018 14:25, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 27, 2018 14:25, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Collected
Feb 27, 2018 14:00
Sampling point
TF082 Treatment Facility TF082
Sample type
Routine
Lab sample
180228-008NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 27, 2018 14:00, sampling point TF082 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 27, 2018 14:00, sampling point TF082 Nitrate 1040 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 27, 2018 14:00, sampling point TF082 Nitrite 1041 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Collected
Sep 18, 2017 15:00
Sampling point
TF082 Treatment Facility TF082
Sample type
Routine
Lab sample
170919-018CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 18, 2017 15:00, sampling point TF082 Cyanide 1024 EPA method QC10204001X Jan 1, 2015 – Dec 31, 2017
Collected
Aug 30, 2017 13:45
Sampling point
TF082 Treatment Facility TF082
Sample type
Routine
Lab sample
170831-003VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2017 13:45, sampling point TF082 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2017 13:45, sampling point TF082 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2017 13:45, sampling point TF082 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2017 13:45, sampling point TF082 Dichloromethane 2964 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2017 13:45, sampling point TF082 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2017 13:45, sampling point TF082 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2017 13:45, sampling point TF082 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2017 13:45, sampling point TF082 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2017 13:45, sampling point TF082 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2017 13:45, sampling point TF082 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2017 13:45, sampling point TF082 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2017 13:45, sampling point TF082 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2017 13:45, sampling point TF082 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2017 13:45, sampling point TF082 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2017 13:45, sampling point TF082 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2017 13:45, sampling point TF082 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2017 13:45, sampling point TF082 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2017 13:45, sampling point TF082 Benzene 2990 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2017 13:45, sampling point TF082 Toluene 2991 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2017 13:45, sampling point TF082 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 30, 2017 13:45, sampling point TF082 Styrene 2996 EPA method 524.2 Jan 1, 2017 – Dec 31, 2017
Collected
Jun 28, 2017 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170629-132PB
Laboratory
MSDH Lab
0.1313 mg/l , sample collected Jun 28, 2017 06:00, 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 Jun 28, 2017 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Jun 27, 2017 05:15
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170629-145PB
Laboratory
MSDH Lab
0.1795 mg/l , sample collected Jun 27, 2017 05:15, 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 Jun 27, 2017 05:15, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017

Routine (10).