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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

MS0820004 , Central Yazoo #1 Fletchers CH.

26 of the 62 analytes this system has been tested for have been detected at least once, across 266 samples on record.

The other 36 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 266 samples on record, detections range from November 5, 2003 to July 15, 2026. These figures cover the whole record; the list of samples further down is narrowed.

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 Central Yazoo #1 Fletchers CH., 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 85 of 85 results Sep 29, 2004 Aug 15, 2023
Lead 1030 Inorganic Chemical 67 of 85 results Sep 29, 2004 Aug 15, 2023
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 38 of 38 results Aug 30, 2004 Jun 9, 2026
TTHM 2950 Organic Chemical 37 of 39 results Aug 30, 2004 Jun 9, 2026
Chloroform 2941 Organic Chemical 33 of 33 results Jun 18, 2007 Jun 9, 2026
Bromodichloromethane 2943 Organic Chemical 33 of 33 results Jun 18, 2007 Jun 9, 2026
Dichloroacetic Acid 2451 Organic Chemical 31 of 31 results Oct 25, 2007 Jun 9, 2026
Trichloroacetic Acid 2452 Organic Chemical 31 of 31 results Oct 25, 2007 Jun 9, 2026
Dibromochloromethane 2944 Organic Chemical 28 of 33 results Oct 25, 2007 Jun 9, 2026
Barium 1010 Inorganic Chemical 16 of 16 results Nov 5, 2003 Jul 15, 2026
Fluoride 1025 Inorganic Chemical 14 of 19 results May 2, 2005 Jul 15, 2026
Chromium 1020 Inorganic Chemical 9 of 16 results May 2, 2005 Apr 7, 2025
Sodium 1052 Inorganic Chemical 8 of 8 results Sep 18, 2019 Jul 15, 2026
Monochloroacetic Acid 2450 Organic Chemical 6 of 31 results Oct 25, 2007 Aug 14, 2017
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 7 results Dec 13, 2011 Jul 17, 2012
Nickel 1036 Inorganic Chemical 3 of 14 results May 10, 2010 Apr 7, 2025
Sulfate 1055 Inorganic Chemical 3 of 3 results Nov 5, 2003 Aug 12, 2021
Calcium 1016 Inorganic Chemical 2 of 2 results Aug 12, 2021 Aug 12, 2021
Chloride 1017 Inorganic Chemical 2 of 2 results Aug 12, 2021 Aug 12, 2021
Conductivity @ 25 C Umhos/CM 1064 Water Quality 2 of 2 results Aug 12, 2021 Aug 12, 2021
Alkalinity, Total 1927 Water Quality 2 of 2 results Aug 12, 2021 Aug 12, 2021
Color 1905 Water Quality 1 of 2 results Aug 12, 2021 Aug 12, 2021
Dibromoacetic Acid 2454 Organic Chemical 1 of 31 results Jul 14, 2014 Jul 14, 2014
Monobromoacetic Acid 2453 Organic Chemical 1 of 31 results Jun 15, 2009 Jun 15, 2009
Bromoform 2942 Organic Chemical 1 of 33 results Jun 3, 2008 Jun 3, 2008
Selenium 1045 Inorganic Chemical 1 of 16 results May 2, 2005 May 2, 2005

Showing samples collected between September 25, 2024 and September 25, 2026. That is this page’s default, not a limit on what the agency records.

Show every sample on record

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The most recent samples, result by result

The table below lists 1–10 of 20 samples, newest first — collected July 8, 2025 to July 15, 2026. The summary above covers all 20.

81 results from the 10 samples listed here: 29 detected, 52 not detected. Across the whole record it is 460 of 1,405. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

Units in this table

Mercury is recorded on this page in ug/l and mg/l. 1 mg/l = 1,000 ug/l.

We withheld the location of 2 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 Central Yazoo #1 Fletchers CH., every result from 1 to 10 of 20 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
Jul 15, 2026
Sampling point
TF102 Treatment Facility TF102
Sample type
Routine
Lab sample
35051962002
Laboratory
Pace Analytical Services, LLC
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 15, 2026, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2026 – Dec 31, 2031
8 ug/l , sample collected Jul 15, 2026, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2026 – Dec 31, 2031
Not detected below 0.2 ug/l Minimum Reporting Level , sample collected Jul 15, 2026, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2026 – Dec 31, 2031
Not detected below 2 ug/l Minimum Reporting Level , sample collected Jul 15, 2026, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2026 – Dec 31, 2031
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Jul 15, 2026, sampling point TF102 Cyanide 1024 EPA method 335.4 Jan 1, 2024 – Dec 31, 2026
0.091 mg/l , sample collected Jul 15, 2026, sampling point TF102 Fluoride 1025 EPA method 300.0 Jan 1, 2026 – Dec 31, 2031
Not detected below 0.2 ug/l Minimum Reporting Level , sample collected Jul 15, 2026, sampling point TF102 Mercury 1035 EPA method 245.1 Jan 1, 2026 – Dec 31, 2031
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 15, 2026, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2026 – Dec 31, 2031
73000 ug/l , sample collected Jul 15, 2026, sampling point TF102 Sodium 1052 EPA method 200.7 Jan 1, 2024 – Dec 31, 2026
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 15, 2026, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2026 – Dec 31, 2031
Not detected below 0.1 ug/l Minimum Reporting Level , sample collected Jul 15, 2026, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2026 – Dec 31, 2031
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 15, 2026, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2026 – Dec 31, 2031
Collected
Jul 15, 2026
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
35051962001
Laboratory
Pace Analytical Services, LLC
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 15, 2026, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2026 – Dec 31, 2031
8.4 ug/l , sample collected Jul 15, 2026, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2026 – Dec 31, 2031
Not detected below 0.2 ug/l Minimum Reporting Level , sample collected Jul 15, 2026, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2026 – Dec 31, 2031
Not detected below 2 ug/l Minimum Reporting Level , sample collected Jul 15, 2026, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2026 – Dec 31, 2031
0.079 mg/l , sample collected Jul 15, 2026, sampling point TF101 Fluoride 1025 EPA method 300.0 Jan 1, 2026 – Dec 31, 2031
Not detected below 0.2 ug/l Minimum Reporting Level , sample collected Jul 15, 2026, sampling point TF101 Mercury 1035 EPA method 245.1 Jan 1, 2026 – Dec 31, 2031
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 15, 2026, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2026 – Dec 31, 2031
72900 ug/l , sample collected Jul 15, 2026, sampling point TF101 Sodium 1052 EPA method 200.7 Jan 1, 2024 – Dec 31, 2026
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 15, 2026, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2026 – Dec 31, 2031
Not detected below 0.1 ug/l Minimum Reporting Level , sample collected Jul 15, 2026, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2026 – Dec 31, 2031
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 15, 2026, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2026 – Dec 31, 2031
Collected
Jun 29, 2026
Sampling point
TF102 Treatment Facility TF102
Sample type
Routine
Lab sample
35047650001
Laboratory
Pace Analytical Services, LLC
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2026, sampling point TF102 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2026, sampling point TF102 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2026 – Dec 31, 2028
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 29, 2026, sampling point TF102 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2026 – Dec 31, 2028
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 29, 2026, sampling point TF102 Dichloromethane 2964 EPA method 524.2 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2026, sampling point TF102 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2026, sampling point TF102 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2026, sampling point TF102 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2026, sampling point TF102 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2026, sampling point TF102 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2026, sampling point TF102 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2026, sampling point TF102 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2026, sampling point TF102 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2026, sampling point TF102 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2026, sampling point TF102 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2026, sampling point TF102 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2026, sampling point TF102 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2026, sampling point TF102 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2026, sampling point TF102 Benzene 2990 EPA method 524.2 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2026, sampling point TF102 Toluene 2991 EPA method 524.2 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2026, sampling point TF102 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2026 – Dec 31, 2028
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2026, sampling point TF102 Styrene 2996 EPA method 524.2 Jan 1, 2026 – Dec 31, 2028
Collected
Jun 9, 2026 10:58
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-195383-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Jun 9, 2026 10:58, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
4.4 ug/l , sample collected Jun 9, 2026 10:58, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
4.1 ug/l , sample collected Jun 9, 2026 10:58, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 9, 2026 10:58, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 9, 2026 10:58, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
8.5 ug/l , sample collected Jun 9, 2026 10:58, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2026 – Dec 31, 2026
9.1 ug/l , sample collected Jun 9, 2026 10:58, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 9, 2026 10:58, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
5.4 ug/l , sample collected Jun 9, 2026 10:58, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
2.5 ug/l , sample collected Jun 9, 2026 10:58, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
17 ug/l , sample collected Jun 9, 2026 10:58, sampling point SM2 TTHM 2950 EPA method 524.2 Jan 1, 2026 – Dec 31, 2026
Collected
Nov 17, 2025 14:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
CN-251118-015
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Nov 17, 2025 14:30, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Dec 31, 2025
Collected
Sep 29, 2025 08:36
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
IN-250930-010
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 29, 2025 08:36, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Sep 16, 2025 09:15
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-164218-2
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Sep 16, 2025 09:15, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
5.9 ug/l , sample collected Sep 16, 2025 09:15, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
5.2 ug/l , sample collected Sep 16, 2025 09:15, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 16, 2025 09:15, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 16, 2025 09:15, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
11.1 ug/l , sample collected Sep 16, 2025 09:15, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
9.9 ug/l , sample collected Sep 16, 2025 09:15, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 16, 2025 09:15, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
5.3 ug/l , sample collected Sep 16, 2025 09:15, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
2.4 ug/l , sample collected Sep 16, 2025 09:15, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
17.6 ug/l , sample collected Sep 16, 2025 09:15, sampling point SM2 TTHM 2950 EPA method 524.2 Not recorded
Collected
Sep 16, 2025 10:06
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-164218-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Sep 16, 2025 10:06, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
11 ug/l , sample collected Sep 16, 2025 10:06, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
11 ug/l , sample collected Sep 16, 2025 10:06, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 16, 2025 10:06, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 16, 2025 10:06, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
22 ug/l , sample collected Sep 16, 2025 10:06, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
22 ug/l , sample collected Sep 16, 2025 10:06, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 16, 2025 10:06, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
5.4 ug/l , sample collected Sep 16, 2025 10:06, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
1.2 ug/l , sample collected Sep 16, 2025 10:06, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
28.6 ug/l , sample collected Sep 16, 2025 10:06, sampling point SM1 TTHM 2950 EPA method 524.2 Not recorded
Collected
Jul 8, 2025 08:23
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-250709-017
Laboratory
MSDH Lab
9.17 ug/l , sample collected Jul 8, 2025 08:23, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
Collected
Jul 8, 2025 09:23
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-250709-017
Laboratory
MSDH Lab
17.2 ug/l , sample collected Jul 8, 2025 09:23, sampling point MRT000 TTHM 2950 EPA method 524.2 Not recorded

Routine (10).