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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

MS0090002 , East Chickasaw W/A #1

25 of the 57 analytes this system has been tested for have been detected at least once, across 425 samples on record.

The other 32 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 425 samples on record, detections range from October 19, 1993 to July 22, 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 East Chickasaw W/A #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 129 of 146 results Oct 19, 1993 Jun 10, 2025
Lead 1030 Inorganic Chemical 68 of 146 results Oct 19, 1993 Jun 9, 2025
Barium 1010 Inorganic Chemical 27 of 27 results Jul 16, 2002 Jul 1, 2026
Fluoride 1025 Inorganic Chemical 24 of 27 results Jan 12, 2004 Jul 1, 2026
Xylenes, Total 2955 Organic Chemical 20 of 113 results May 24, 2005 Jan 4, 2022
Chromium 1020 Inorganic Chemical 18 of 27 results Jul 16, 2002 Jul 8, 2025
TTHM 2950 Organic Chemical 16 of 22 results May 10, 2004 Jul 22, 2026
Arsenic 1005 Inorganic Chemical 13 of 27 results Sep 24, 2018 Jul 1, 2026
Selenium 1045 Inorganic Chemical 12 of 27 results Jul 16, 2002 Jul 1, 2026
Nickel 1036 Inorganic Chemical 11 of 26 results Feb 14, 2005 Jul 8, 2025
Bromoform 2942 Organic Chemical 10 of 16 results Jul 9, 2007 Jul 22, 2026
Ethylbenzene 2992 Organic Chemical 9 of 113 results Apr 5, 2004 May 19, 2021
Dibromochloromethane 2944 Organic Chemical 7 of 16 results Jul 16, 2018 Jul 22, 2026
Sodium 1052 Inorganic Chemical 6 of 6 results Sep 18, 2019 Oct 14, 2024
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 5 of 23 results Jul 9, 2007 Feb 7, 2022
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 10 results Dec 5, 2011 Jul 10, 2012
Sulfate 1055 Inorganic Chemical 3 of 4 results Jul 16, 2002 Jan 12, 2004
Bromodichloromethane 2943 Organic Chemical 2 of 16 results Dec 11, 2023 Jul 22, 2026
Toluene 2991 Organic Chemical 2 of 113 results Feb 22, 2006 May 16, 2017
Cadmium 1015 Inorganic Chemical 2 of 27 results Feb 14, 2005 Feb 14, 2005
Dibromoacetic Acid 2454 Organic Chemical 1 of 17 results Jul 30, 2024 Jul 30, 2024
Chloroform 2941 Organic Chemical 1 of 16 results Dec 11, 2023 Dec 11, 2023
Monochloroacetic Acid 2450 Organic Chemical 1 of 17 results Jul 16, 2018 Jul 16, 2018
Nitrate-Nitrite 1038 Inorganic Chemical 1 of 50 results Jan 22, 2018 Jan 22, 2018
Nitrate 1040 Inorganic Chemical 1 of 50 results Jan 22, 2018 Jan 22, 2018

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 191–200 of 425 samples, newest first — collected June 17, 2014 to August 11, 2014. The summary above covers all 425.

64 results from the 10 samples listed here: 10 detected, 54 not detected. Across the whole record it is 394 of 3,396. 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 East Chickasaw W/A #1, every result from 191 to 200 of 425 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 11, 2014 12:47
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
140812-024HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 11, 2014 12:47, 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 11, 2014 12:47, 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 11, 2014 12:47, 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 11, 2014 12:47, 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 11, 2014 12:47, 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 11, 2014 12:47, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2014 – Dec 31, 2016
Collected
Aug 11, 2014 12:47
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
140812-035TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 11, 2014 12:47, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
1.99 ug/l , sample collected Aug 11, 2014 12:47, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 11, 2014 12:47, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 11, 2014 12:47, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
1.99 ug/l , sample collected Aug 11, 2014 12:47, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2014 – Dec 31, 2016
Collected
Jul 21, 2014 02:12
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
140722-022VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:12, sampling point TF102 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:12, sampling point TF102 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:12, sampling point TF102 Xylenes, Total 2955 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:12, sampling point TF102 Dichloromethane 2964 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:12, sampling point TF102 O-Dichlorobenzene 2968 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:12, sampling point TF102 P-Dichlorobenzene 2969 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:12, sampling point TF102 Vinyl Chloride 2976 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:12, sampling point TF102 1,1-Dichloroethylene 2977 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:12, sampling point TF102 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:12, sampling point TF102 1,2-Dichloroethane 2980 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:12, sampling point TF102 1,1,1-Trichloroethane 2981 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:12, sampling point TF102 Carbon Tetrachloride 2982 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:12, sampling point TF102 1,2-Dichloropropane 2983 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:12, sampling point TF102 Trichloroethylene 2984 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:12, sampling point TF102 1,1,2-Trichloroethane 2985 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:12, sampling point TF102 Tetrachloroethylene 2987 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:12, sampling point TF102 Chlorobenzene 2989 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:12, sampling point TF102 Benzene 2990 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:12, sampling point TF102 Toluene 2991 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:12, sampling point TF102 Ethylbenzene 2992 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:12, sampling point TF102 Styrene 2996 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Collected
Jul 21, 2014 01:45
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
140722-021VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 01:45, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 01:45, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 01:45, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 01:45, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 01:45, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 01:45, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 01:45, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 01:45, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 01:45, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 01:45, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 01:45, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 01:45, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 01:45, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 01:45, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 01:45, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 01:45, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 01:45, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 01:45, sampling point TF101 Benzene 2990 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 01:45, sampling point TF101 Toluene 2991 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 01:45, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 01:45, sampling point TF101 Styrene 2996 EPA method 524.2 Jul 1, 2014 – Sep 30, 2014
Collected
Jun 30, 2014 01:41
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
140701-009CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jun 30, 2014 01:41, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2014 – Dec 31, 2016
Collected
Jun 17, 2014 07:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140618-074PB
Laboratory
MSDH Lab
0.0996 mg/l , sample collected Jun 17, 2014 07:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0073 mg/l , sample collected Jun 17, 2014 07:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jun 17, 2014 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140618-068PB
Laboratory
MSDH Lab
0.2357 mg/l , sample collected Jun 17, 2014 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0006 mg/l , sample collected Jun 17, 2014 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jun 17, 2014 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140618-067PB
Laboratory
MSDH Lab
0.2704 mg/l , sample collected Jun 17, 2014 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 17, 2014 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jun 17, 2014 05:40
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140618-066PB
Laboratory
MSDH Lab
0.1719 mg/l , sample collected Jun 17, 2014 05:40, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
0.0016 mg/l , sample collected Jun 17, 2014 05:40, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Collected
Jun 17, 2014 05:27
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
140618-065PB
Laboratory
MSDH Lab
0.0092 mg/l , sample collected Jun 17, 2014 05:27, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 17, 2014 05:27, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2012 – Dec 31, 2014

Routine (10).