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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 91–100 of 425 samples, newest first — collected April 8, 2020 to February 8, 2021. The summary above covers all 425.

83 results from the 10 samples listed here: 14 detected, 69 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 91 to 100 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
Feb 8, 2021 13:45
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NA-210209-053
Laboratory
MSDH Lab
84.9 mg/l , sample collected Feb 8, 2021 13:45, sampling point TF102 Sodium 1052 EPA method 200.7 Not recorded
Collected
Feb 8, 2021 13:15
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NA-210209-052
Laboratory
MSDH Lab
77.1 mg/l , sample collected Feb 8, 2021 13:15, sampling point TF101 Sodium 1052 EPA method 200.7 Not recorded
Collected
Feb 8, 2021 14:03
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
210209-010VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 14:03, sampling point TF102 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 14:03, sampling point TF102 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 14:03, sampling point TF102 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 14:03, sampling point TF102 Dichloromethane 2964 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 14:03, sampling point TF102 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 14:03, sampling point TF102 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 14:03, sampling point TF102 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 14:03, sampling point TF102 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 14:03, sampling point TF102 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 14:03, sampling point TF102 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 14:03, sampling point TF102 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 14:03, sampling point TF102 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 14:03, sampling point TF102 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 14:03, sampling point TF102 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 14:03, sampling point TF102 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 14:03, sampling point TF102 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 14:03, sampling point TF102 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 14:03, sampling point TF102 Benzene 2990 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 14:03, sampling point TF102 Toluene 2991 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 14:03, sampling point TF102 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 14:03, sampling point TF102 Styrene 2996 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Collected
Feb 8, 2021 13:10
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
210209-009VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 13:10, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 13:10, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 13:10, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 13:10, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 13:10, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 13:10, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 13:10, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 13:10, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 13:10, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 13:10, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 13:10, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 13:10, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 13:10, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 13:10, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 13:10, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 13:10, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 13:10, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 13:10, sampling point TF101 Benzene 2990 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 13:10, sampling point TF101 Toluene 2991 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 13:10, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 8, 2021 13:10, sampling point TF101 Styrene 2996 EPA method 524.2 Jan 1, 2021 – Mar 31, 2021
Collected
Feb 8, 2021 13:47
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-210209-020
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 8, 2021 13:47, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 8, 2021 13:47, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 8, 2021 13:47, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Collected
Feb 8, 2021 13:17
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-210209-023
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 8, 2021 13:17, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 8, 2021 13:17, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 8, 2021 13:17, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Collected
Jul 13, 2020 13:10
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200714-004TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 13, 2020 13:10, sampling point DS000 Chloroform 2941 EPA method 524.2 Not recorded
4.01 ug/l , sample collected Jul 13, 2020 13:10, sampling point DS000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 13, 2020 13:10, sampling point DS000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
1.28 ug/l , sample collected Jul 13, 2020 13:10, sampling point DS000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
5.29 ug/l , sample collected Jul 13, 2020 13:10, sampling point DS000 TTHM 2950 Jan 1, 2020 – Dec 31, 2020
Collected
Jul 13, 2020 13:10
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
200714-004HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jul 13, 2020 13:10, sampling point DS000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 13, 2020 13:10, sampling point DS000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 13, 2020 13:10, sampling point DS000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 13, 2020 13:10, sampling point DS000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 13, 2020 13:10, sampling point DS000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
Not detected below 0.006 mg/l Minimum Reporting Level , sample collected Jul 13, 2020 13:10, sampling point DS000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2020 – Dec 31, 2020
Collected
Apr 8, 2020 13:25
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
200409-017IN
Laboratory
MSDH Lab
0.0014 mg/l , sample collected Apr 8, 2020 13:25, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0361 mg/l , sample collected Apr 8, 2020 13:25, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2020 13:25, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0023 mg/l , sample collected Apr 8, 2020 13:25, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.148 mg/l , sample collected Apr 8, 2020 13:25, sampling point TF101 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2020 13:25, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2020 13:25, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
0.0025 mg/l , sample collected Apr 8, 2020 13:25, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2020 13:25, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2020 13:25, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2020 13:25, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Apr 8, 2020 13:05
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
200409-016IN
Laboratory
MSDH Lab
0.0015 mg/l , sample collected Apr 8, 2020 13:05, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0362 mg/l , sample collected Apr 8, 2020 13:05, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2020 13:05, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0023 mg/l , sample collected Apr 8, 2020 13:05, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.134 mg/l , sample collected Apr 8, 2020 13:05, sampling point TF102 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2020 13:05, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2020 13:05, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2020 13:05, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2020 13:05, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2020 13:05, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 8, 2020 13:05, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022

Routine (10).