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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

MS0310001 , Tallahala W/A-Antioch

23 of the 57 analytes this system has been tested for have been detected at least once, across 895 samples on record.

The other 34 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 895 samples on record, detections range from September 22, 2003 to October 1, 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 Tallahala W/A-Antioch, 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 429 of 429 results Aug 29, 2007 Jul 23, 2024
Lead 1030 Inorganic Chemical 323 of 429 results Aug 29, 2007 Jul 23, 2024
Barium 1010 Inorganic Chemical 57 of 59 results Sep 22, 2003 Feb 25, 2025
Chromium 1020 Inorganic Chemical 35 of 59 results Sep 22, 2003 Feb 25, 2025
TTHM 2950 Organic Chemical 26 of 26 results Jun 14, 2004 Oct 1, 2025
Fluoride 1025 Inorganic Chemical 23 of 59 results Sep 22, 2003 Feb 25, 2025
Nickel 1036 Inorganic Chemical 19 of 59 results Mar 1, 2004 Feb 25, 2025
Xylenes, Total 2955 Organic Chemical 19 of 119 results Apr 28, 2004 Jul 12, 2022
Chloroform 2941 Organic Chemical 18 of 18 results May 17, 2006 Oct 1, 2025
Sodium 1052 Inorganic Chemical 18 of 18 results Sep 19, 2019 Feb 4, 2025
Bromodichloromethane 2943 Organic Chemical 17 of 18 results May 17, 2006 Oct 1, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 16 of 26 results Mar 29, 2006 Apr 1, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 16 of 21 results Mar 6, 2012 Jan 9, 2018
Dibromochloromethane 2944 Organic Chemical 13 of 18 results May 17, 2006 Oct 1, 2025
Sulfate 1055 Inorganic Chemical 10 of 10 results Sep 22, 2003 Mar 1, 2004
Nitrate-Nitrite 1038 Inorganic Chemical 8 of 128 results Mar 23, 2015 Apr 24, 2024
Nitrate 1040 Inorganic Chemical 8 of 128 results Mar 23, 2015 Apr 24, 2024
Dichloroacetic Acid 2451 Organic Chemical 6 of 15 results Sep 24, 2008 Sep 17, 2024
Trichloroacetic Acid 2452 Organic Chemical 6 of 15 results Sep 24, 2008 Sep 17, 2024
Ethylbenzene 2992 Organic Chemical 6 of 119 results Aug 3, 2004 Jun 2, 2005
Monochloroacetic Acid 2450 Organic Chemical 2 of 15 results Aug 6, 2018 Mar 4, 2020
Nitrite 1041 Inorganic Chemical 1 of 128 results Feb 21, 2023 Feb 21, 2023
Carbon Tetrachloride 2982 Organic Chemical 1 of 119 results Jul 12, 2022 Jul 12, 2022

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 81–90 of 895 samples, newest first — collected July 12, 2022 to May 10, 2023. The summary above covers all 895.

82 results from the 10 samples listed here: 7 detected, 75 not detected. Across the whole record it is 1,077 of 4,784. 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 Tallahala W/A-Antioch, every result from 81 to 90 of 895 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
May 10, 2023 15:05
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-230511-011
Laboratory
MSDH Lab
7.57 ug/l , sample collected May 10, 2023 15:05, sampling point MRT000 TTHM 2950 EPA method 524.2 Not recorded
Collected
Feb 21, 2023 15:10
Sampling point
TF107 Treatment Facility TF107
Sample type
Routine
Lab sample
NI-230222-041
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 21, 2023 15:10, sampling point TF107 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 21, 2023 15:10, sampling point TF107 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 21, 2023 15:10, sampling point TF107 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Feb 21, 2023 14:25
Sampling point
TF105
Sample type
Routine
Lab sample
NI-230222-040
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 21, 2023 14:25, sampling point TF105 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 21, 2023 14:25, sampling point TF105 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 21, 2023 14:25, sampling point TF105 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Feb 21, 2023 14:35
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
NI-230222-039
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 21, 2023 14:35, sampling point TF104 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 21, 2023 14:35, sampling point TF104 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 21, 2023 14:35, sampling point TF104 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Feb 21, 2023 15:15
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
NI-230222-038
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 21, 2023 15:15, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 21, 2023 15:15, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 21, 2023 15:15, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Feb 21, 2023 15:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-230222-037
Laboratory
MSDH Lab
0.182 mg/l , sample collected Feb 21, 2023 15:00, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
0.182 mg/l , sample collected Feb 21, 2023 15:00, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 21, 2023 15:00, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Feb 21, 2023 15:55
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-230222-036
Laboratory
MSDH Lab
0.182 mg/l , sample collected Feb 21, 2023 15:55, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
0.158 mg/l , sample collected Feb 21, 2023 15:55, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
0.0238 mg/l , sample collected Feb 21, 2023 15:55, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Jul 12, 2022 14:45
Sampling point
TF107 Treatment Facility TF107
Sample type
Routine
Lab sample
VO-220713-022
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:45, sampling point TF107 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:45, sampling point TF107 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:45, sampling point TF107 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:45, sampling point TF107 Dichloromethane 2964 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:45, sampling point TF107 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:45, sampling point TF107 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:45, sampling point TF107 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:45, sampling point TF107 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:45, sampling point TF107 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:45, sampling point TF107 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:45, sampling point TF107 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
0.597 ug/l , sample collected Jul 12, 2022 14:45, sampling point TF107 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:45, sampling point TF107 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:45, sampling point TF107 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:45, sampling point TF107 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:45, sampling point TF107 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:45, sampling point TF107 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:45, sampling point TF107 Benzene 2990 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:45, sampling point TF107 Toluene 2991 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:45, sampling point TF107 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:45, sampling point TF107 Styrene 2996 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Collected
Jul 12, 2022 14:00
Sampling point
TF105
Sample type
Routine
Lab sample
VO-220713-021
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:00, sampling point TF105 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:00, sampling point TF105 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:00, sampling point TF105 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:00, sampling point TF105 Dichloromethane 2964 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:00, sampling point TF105 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:00, sampling point TF105 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:00, sampling point TF105 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:00, sampling point TF105 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:00, sampling point TF105 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:00, sampling point TF105 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:00, sampling point TF105 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:00, sampling point TF105 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:00, sampling point TF105 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:00, sampling point TF105 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:00, sampling point TF105 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:00, sampling point TF105 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:00, sampling point TF105 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:00, sampling point TF105 Benzene 2990 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:00, sampling point TF105 Toluene 2991 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:00, sampling point TF105 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 14:00, sampling point TF105 Styrene 2996 EPA method 524.2 Jan 1, 2017 – Dec 31, 2022
Collected
Jul 12, 2022 13:45
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
VO-220713-020
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 13:45, sampling point TF104 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 13:45, sampling point TF104 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 13:45, sampling point TF104 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 13:45, sampling point TF104 Dichloromethane 2964 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 13:45, sampling point TF104 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 13:45, sampling point TF104 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 13:45, sampling point TF104 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 13:45, sampling point TF104 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 13:45, sampling point TF104 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 13:45, sampling point TF104 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 13:45, sampling point TF104 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 13:45, sampling point TF104 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 13:45, sampling point TF104 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 13:45, sampling point TF104 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 13:45, sampling point TF104 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 13:45, sampling point TF104 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 13:45, sampling point TF104 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 13:45, sampling point TF104 Benzene 2990 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 13:45, sampling point TF104 Toluene 2991 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 13:45, sampling point TF104 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 12, 2022 13:45, sampling point TF104 Styrene 2996 EPA method 524.2 Jan 1, 2022 – Dec 31, 2027

Routine (10).