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
MS0170015 , City of Olive Branch
37 of the 66 analytes this system has been tested for have been detected at least once, across 1,107 samples on record.
The other 29 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 1,107 samples on record, detections range from December 1, 1992 to June 23, 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.
| Analyte | Kind | Detected in | First detected | Last detected |
|---|---|---|---|---|
| Copper, Free 1022 | Inorganic Chemical | 420 of 446 results | Dec 1, 1992 | Jun 24, 2024 |
| Lead 1030 | Inorganic Chemical | 245 of 446 results | Dec 1, 1992 | Jun 19, 2024 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 133 of 157 results | May 3, 2004 | Jun 17, 2026 |
| Nitrate 1040 | Inorganic Chemical | 133 of 157 results | May 3, 2004 | Jun 17, 2026 |
| Barium 1010 | Inorganic Chemical | 83 of 83 results | Apr 16, 2002 | Jun 17, 2026 |
| Fluoride 1025 | Inorganic Chemical | 74 of 92 results | Apr 16, 2002 | Jun 23, 2026 |
| Nickel 1036 | Inorganic Chemical | 63 of 82 results | Apr 16, 2002 | Feb 3, 2025 |
| Chromium 1020 | Inorganic Chemical | 37 of 83 results | Apr 16, 2002 | Feb 3, 2025 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 36 of 45 results | Dec 12, 2011 | Oct 23, 2019 |
| Radium-226 4020 | Radionuclide | 29 of 59 results | Sep 16, 2009 | Oct 23, 2019 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 28 of 59 results | Sep 16, 2009 | Oct 23, 2019 |
| Radium-228 4030 | Radionuclide | 25 of 59 results | Sep 16, 2009 | Oct 23, 2019 |
| Sodium 1052 | Inorganic Chemical | 22 of 22 results | Sep 23, 2019 | Jun 17, 2026 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 20 of 51 results | Sep 1, 2005 | Jul 17, 2023 |
| Selenium 1045 | Inorganic Chemical | 17 of 83 results | Apr 16, 2002 | Apr 2, 2008 |
| Sulfate 1055 | Inorganic Chemical | 15 of 23 results | May 14, 2002 | Sep 15, 2021 |
| TTHM 2950 | Organic Chemical | 11 of 52 results | Apr 13, 2004 | Oct 13, 2025 |
| Monochloroacetic Acid 2450 | Organic Chemical | 9 of 30 results | Jun 5, 2012 | Jul 18, 2019 |
| Xylenes, Total 2955 | Organic Chemical | 8 of 118 results | Jan 14, 2004 | Jun 16, 2010 |
| Gross Alpha, Excl. Radon & U 4000 | Radionuclide | 6 of 14 results | Sep 16, 2009 | Mar 10, 2010 |
| Gross Beta Particle Activity 4100 | Radionuclide | 6 of 6 results | Sep 16, 2009 | Mar 10, 2010 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 6 of 14 results | Sep 16, 2009 | Mar 10, 2010 |
| Cadmium 1015 | Inorganic Chemical | 6 of 83 results | Mar 2, 2005 | Jan 25, 2006 |
| Arsenic 1005 | Inorganic Chemical | 4 of 83 results | Jan 26, 2004 | Apr 14, 2014 |
| Calcium 1016 | Inorganic Chemical | 3 of 3 results | Sep 15, 2021 | Sep 15, 2021 |
| Chloride 1017 | Inorganic Chemical | 3 of 3 results | Sep 15, 2021 | Sep 15, 2021 |
| Conductivity @ 25 C Umhos/CM 1064 | Water Quality | 3 of 3 results | Sep 15, 2021 | Sep 15, 2021 |
| Alkalinity, Total 1927 | Water Quality | 3 of 3 results | Sep 15, 2021 | Sep 15, 2021 |
| Chloroform 2941 | Organic Chemical | 1 of 34 results | Oct 13, 2025 | Oct 13, 2025 |
| Bromoform 2942 | Organic Chemical | 1 of 34 results | Oct 13, 2025 | Oct 13, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 1 of 34 results | Oct 13, 2025 | Oct 13, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 1 of 34 results | Oct 13, 2025 | Oct 13, 2025 |
| Thallium, Total 1085 | Inorganic Chemical | 1 of 83 results | Feb 3, 2025 | Feb 3, 2025 |
| Asbestos 1094 | Inorganic Chemical | 1 of 1 result | Sep 10, 2019 | Sep 10, 2019 |
| Dibromoacetic Acid 2454 | Organic Chemical | 1 of 30 results | Jan 15, 2014 | Jan 15, 2014 |
| Dichloroacetic Acid 2451 | Organic Chemical | 1 of 30 results | Oct 7, 2013 | Oct 7, 2013 |
| Ethylbenzene 2992 | Organic Chemical | 1 of 118 results | Apr 21, 2008 | Apr 21, 2008 |
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.
Choose a date range
The most recent samples, result by result
The table below lists 11–20 of 32 samples, newest first — collected February 3, 2025 to February 23, 2026. The summary above covers all 32.
40 results from the 10 samples listed here: 15 detected, 25 not detected. Across the whole record it is 1,457 of 5,578. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 0.641 mg/l , sample collected Feb 23, 2026 09:09, sampling point TF083 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2026 – Dec 31, 2026 |
| 0.641 mg/l , sample collected Feb 23, 2026 09:09, sampling point TF083 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2026 – Dec 31, 2026 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 23, 2026 09:09, sampling point TF083 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2026 – Dec 31, 2026 |
|
||
| 0.168 mg/l , sample collected Feb 23, 2026 08:30, sampling point TF081 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2026 – Dec 31, 2026 |
| 0.168 mg/l , sample collected Feb 23, 2026 08:30, sampling point TF081 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2026 – Dec 31, 2026 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 23, 2026 08:30, sampling point TF081 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2026 – Dec 31, 2026 |
|
||
| 0.691 mg/l , sample collected Feb 23, 2026 07:48, sampling point TF080 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2026 – Dec 31, 2026 |
| 0.691 mg/l , sample collected Feb 23, 2026 07:48, sampling point TF080 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2026 – Dec 31, 2026 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 23, 2026 07:48, sampling point TF080 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2026 – Dec 31, 2026 |
|
||
| Not detected below 2 ug/l Minimum Reporting Level , sample collected Oct 13, 2025 10:20, sampling point DS000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 13, 2025 10:20, sampling point DS000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 13, 2025 10:20, sampling point DS000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 13, 2025 10:20, sampling point DS000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 13, 2025 10:20, sampling point DS000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| Not detected below 2 ug/l Minimum Reporting Level , sample collected Oct 13, 2025 10:20, sampling point DS000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Not recorded |
| 0.73 ug/l , sample collected Oct 13, 2025 10:20, sampling point DS000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| 1.5 ug/l , sample collected Oct 13, 2025 10:20, sampling point DS000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 2 ug/l , sample collected Oct 13, 2025 10:20, sampling point DS000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 2.8 ug/l , sample collected Oct 13, 2025 10:20, sampling point DS000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 7.03 ug/l , sample collected Oct 13, 2025 10:20, sampling point DS000 | TTHM 2950 EPA method 524.2 | Not recorded |
|
||
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 13, 2025 09:52, sampling point DS000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 13, 2025 09:52, sampling point DS000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 13, 2025 09:52, sampling point DS000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 13, 2025 09:52, sampling point DS000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 13, 2025 09:52, sampling point DS000 | TTHM 2950 EPA method 524.2 | Not recorded |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Aug 18, 2025 08:47, sampling point TF085 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2023 – Dec 31, 2025 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Aug 18, 2025 08:20, sampling point TF081 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2023 – Dec 31, 2025 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Aug 18, 2025 07:55, sampling point TF080 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2023 – Dec 31, 2025 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jun 9, 2025 10:14, sampling point TF087 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2023 – Dec 31, 2025 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2025 10:17, sampling point TF087 | Arsenic 1005 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.0222 mg/l , sample collected Feb 3, 2025 10:17, sampling point TF087 | Barium 1010 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2025 10:17, sampling point TF087 | Cadmium 1015 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.0008 mg/l , sample collected Feb 3, 2025 10:17, sampling point TF087 | Chromium 1020 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.692 mg/l , sample collected Feb 3, 2025 10:17, sampling point TF087 | Fluoride 1025 EPA method QC 10-109-12-2-A | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2025 10:17, sampling point TF087 | Mercury 1035 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.0008 mg/l , sample collected Feb 3, 2025 10:17, sampling point TF087 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 3, 2025 10:17, sampling point TF087 | Selenium 1045 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2025 10:17, sampling point TF087 | Antimony, Total 1074 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2025 10:17, sampling point TF087 | Beryllium, Total 1075 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 3, 2025 10:17, sampling point TF087 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
-
- Collected
- Feb 23, 2026 09:09
- Sampling point
- TF083 Treatment Plant T083
- Sample type
- Routine
- Lab sample
- NI-260224-010
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2026 – Dec 31, 2026
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- 0.641 mg/l
-
Nitrate 1040 EPA method QC10107041C
- Result
- 0.641 mg/l
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Feb 23, 2026 08:30
- Sampling point
- TF081 Treatment Plant T081
- Sample type
- Routine
- Lab sample
- NI-260224-009
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2026 – Dec 31, 2026
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- 0.168 mg/l
-
Nitrate 1040 EPA method QC10107041C
- Result
- 0.168 mg/l
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Feb 23, 2026 07:48
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- NI-260224-008
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2026 – Dec 31, 2026
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- 0.691 mg/l
-
Nitrate 1040 EPA method QC10107041C
- Result
- 0.691 mg/l
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Oct 13, 2025 10:20
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 810-167836-2
- Laboratory
- Eurofins Eaton Analytical South Bend in
- Monitoring period
- Not recorded
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 2 ug/l Minimum Reporting Level
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- Not detected below 2 ug/l Minimum Reporting Level
-
Chloroform 2941 EPA method 524.2
- Result
- 0.73 ug/l
-
Bromoform 2942 EPA method 524.2
- Result
- 1.5 ug/l
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 2 ug/l
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 2.8 ug/l
-
TTHM 2950 EPA method 524.2
- Result
- 7.03 ug/l
-
- Collected
- Oct 13, 2025 09:52
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 810-167836-1
- Laboratory
- Eurofins Eaton Analytical South Bend in
- Monitoring period
- Not recorded
-
Chloroform 2941 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
TTHM 2950 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Aug 18, 2025 08:47
- Sampling point
- TF085 Treatment Plant T085
- Sample type
- Routine
- Lab sample
- CN-250819-034
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Aug 18, 2025 08:20
- Sampling point
- TF081 Treatment Plant T081
- Sample type
- Routine
- Lab sample
- CN-250819-033
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Aug 18, 2025 07:55
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- CN-250819-032
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Jun 9, 2025 10:14
- Sampling point
- TF087 Treatment Plant T087
- Sample type
- Routine
- Lab sample
- CN-250610-009
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Feb 3, 2025 10:17
- Sampling point
- TF087 Treatment Plant T087
- Sample type
- Routine
- Lab sample
- IN-250204-045
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Barium 1010 EPA method 200.8
- Result
- 0.0222 mg/l
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Chromium 1020 EPA method 200.8
- Result
- 0.0008 mg/l
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Fluoride 1025 EPA method QC 10-109-12-2-A
- Result
- 0.692 mg/l
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Nickel 1036 EPA method 200.8
- Result
- 0.0008 mg/l
- Monitoring period
- Not recorded
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.0025 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
Routine (10).