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
MS0150018 , Copiah County Industrial Park
15 of the 54 analytes this system has been tested for have been detected at least once, across 280 samples on record.
The other 39 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 280 samples on record, detections range from September 22, 1993 to March 10, 2025. 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 | 142 of 198 results | Sep 22, 1993 | Oct 17, 2024 |
| Lead 1030 | Inorganic Chemical | 79 of 198 results | Sep 22, 1993 | Sep 23, 2021 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 23 of 23 results | May 3, 2004 | Jan 27, 2025 |
| Nitrate 1040 | Inorganic Chemical | 23 of 23 results | May 3, 2004 | Jan 27, 2025 |
| Barium 1010 | Inorganic Chemical | 12 of 12 results | Apr 23, 2002 | Feb 5, 2025 |
| Nickel 1036 | Inorganic Chemical | 10 of 12 results | Apr 23, 2002 | Feb 5, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 5 of 12 results | Jun 27, 2007 | Mar 10, 2025 |
| Selenium 1045 | Inorganic Chemical | 4 of 12 results | Apr 23, 2002 | Feb 9, 2006 |
| Chromium 1020 | Inorganic Chemical | 3 of 12 results | Apr 23, 2002 | Apr 14, 2014 |
| Sulfate 1055 | Inorganic Chemical | 3 of 3 results | Apr 23, 2002 | Jan 28, 2004 |
| TTHM 2950 | Organic Chemical | 2 of 11 results | Jun 27, 2007 | Aug 12, 2010 |
| Sodium 1052 | Inorganic Chemical | 1 of 1 result | Feb 3, 2021 | Feb 3, 2021 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 5 results | Apr 15, 2019 | Apr 15, 2019 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 5 results | Aug 27, 2014 | Aug 27, 2014 |
| Cadmium 1015 | Inorganic Chemical | 1 of 12 results | Mar 9, 2005 | Mar 9, 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.
Choose a date range
The most recent samples, result by result
The table below lists 1–10 of 16 samples, newest first — collected October 17, 2024 to October 27, 2025. The summary above covers all 16.
28 results from the 10 samples listed here: 11 detected, 17 not detected. Across the whole record it is 310 of 837. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.
We withheld the location of 1 sampling point 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.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 27, 2025 13:15, sampling point TF080 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 10.8 ug/l , sample collected Mar 10, 2025 12:30, sampling point SM1 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 10, 2025 12:30, sampling point SM1 | TTHM 2950 EPA method 524.2 | Jan 1, 2025 – Dec 31, 2025 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 09:25, sampling point TF080 | Arsenic 1005 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.0188 mg/l , sample collected Feb 5, 2025 09:25, sampling point TF080 | 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 5, 2025 09:25, sampling point TF080 | Cadmium 1015 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 09:25, sampling point TF080 | Chromium 1020 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 09:25, sampling point TF080 | 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 5, 2025 09:25, sampling point TF080 | Mercury 1035 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.0017 mg/l , sample collected Feb 5, 2025 09:25, sampling point TF080 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 09:25, sampling point TF080 | 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 5, 2025 09:25, sampling point TF080 | 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 5, 2025 09:25, sampling point TF080 | 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 5, 2025 09:25, sampling point TF080 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| 1.37 mg/l , sample collected Jan 27, 2025 11:30, sampling point TF080 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| 1.37 mg/l , sample collected Jan 27, 2025 11:30, sampling point TF080 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 27, 2025 11:30, sampling point TF080 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 1.04 mg/l , sample collected Oct 17, 2024 06:50, sampling point TF080 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2024 – Dec 31, 2024 |
| 1.04 mg/l , sample collected Oct 17, 2024 06:50, sampling point TF080 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2024 – Dec 31, 2024 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Oct 17, 2024 06:50, sampling point TF080 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2024 – Dec 31, 2024 |
|
||
| 0.0014 mg/l , sample collected Oct 17, 2024 05:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 17, 2024 05:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.0015 mg/l , sample collected Oct 17, 2024 05:35, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 17, 2024 05:35, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.0015 mg/l , sample collected Oct 17, 2024 05:38, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 17, 2024 05:38, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
|
||
| 0.0015 mg/l , sample collected Oct 17, 2024 05:50, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 17, 2024 05:50, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2022 – Dec 31, 2024 |
-
- Collected
- Oct 27, 2025 13:15
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- CN-251027-162
- 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
- Mar 10, 2025 12:30
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- HA-250311-014
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 10.8 ug/l
-
- Collected
- Mar 10, 2025 12:30
- Sampling point
- SM1 Location withheld
- Sample type
- Routine
- Lab sample
- TH-250311-014
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
TTHM 2950 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
-
- Collected
- Feb 5, 2025 09:25
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- IN-250206-033
- 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
- 0.0188 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
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Fluoride 1025 EPA method QC 10-109-12-2-A
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
- 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
- 0.0017 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
-
- Collected
- Jan 27, 2025 11:30
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- NI-250128-025
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- 1.37 mg/l
-
Nitrate 1040 EPA method QC10107041C
- Result
- 1.37 mg/l
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Oct 17, 2024 06:50
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- NI-241017-006
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2024 – Dec 31, 2024
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- 1.04 mg/l
-
Nitrate 1040 EPA method QC10107041C
- Result
- 1.04 mg/l
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Oct 17, 2024 05:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-241017-020
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0014 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Oct 17, 2024 05:35
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-241017-019
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0015 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Oct 17, 2024 05:38
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-241017-018
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0015 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Oct 17, 2024 05:50
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- PB-241017-017
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0015 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
Routine (10).