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
MS0570004 , City of McComb
25 of the 65 analytes this system has been tested for have been detected at least once, across 395 samples on record.
The other 40 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 395 samples on record, detections range from July 23, 2002 to August 19, 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.
| Analyte | Kind | Detected in | First detected | Last detected |
|---|---|---|---|---|
| Copper, Free 1022 | Inorganic Chemical | 242 of 242 results | Jun 10, 2004 | Aug 19, 2025 |
| Lead 1030 | Inorganic Chemical | 159 of 242 results | Jun 10, 2004 | Aug 19, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 20 of 46 results | Aug 8, 2005 | Nov 1, 2021 |
| Fluoride 1025 | Inorganic Chemical | 11 of 11 results | Jul 23, 2002 | Mar 19, 2025 |
| Monochloroacetic Acid 2450 | Organic Chemical | 11 of 30 results | Jun 11, 2012 | Jun 11, 2018 |
| Barium 1010 | Inorganic Chemical | 10 of 10 results | Jul 23, 2002 | Mar 19, 2025 |
| Arsenic 1005 | Inorganic Chemical | 9 of 10 results | Mar 17, 2004 | Mar 19, 2025 |
| TTHM 2950 | Organic Chemical | 9 of 49 results | Aug 4, 2004 | Aug 19, 2010 |
| Sodium 1052 | Inorganic Chemical | 3 of 3 results | Oct 15, 2021 | Feb 24, 2025 |
| Sulfate 1055 | Inorganic Chemical | 3 of 3 results | Jul 23, 2002 | Oct 15, 2021 |
| Chromium 1020 | Inorganic Chemical | 3 of 10 results | Jul 23, 2002 | Dec 12, 2016 |
| Cadmium 1015 | Inorganic Chemical | 2 of 10 results | Apr 11, 2005 | May 8, 2013 |
| Calcium 1016 | Inorganic Chemical | 1 of 1 result | Oct 15, 2021 | Oct 15, 2021 |
| Chloride 1017 | Inorganic Chemical | 1 of 1 result | Oct 15, 2021 | Oct 15, 2021 |
| Conductivity @ 25 C Umhos/CM 1064 | Water Quality | 1 of 1 result | Oct 15, 2021 | Oct 15, 2021 |
| Alkalinity, Total 1927 | Water Quality | 1 of 1 result | Oct 15, 2021 | Oct 15, 2021 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 1 of 1 result | Sep 17, 2019 | Sep 17, 2019 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 1 of 3 results | Sep 17, 2019 | Sep 17, 2019 |
| Radium-226 4020 | Radionuclide | 1 of 3 results | Sep 17, 2019 | Sep 17, 2019 |
| Radium-228 4030 | Radionuclide | 1 of 3 results | Sep 17, 2019 | Sep 17, 2019 |
| Dichloroacetic Acid 2451 | Organic Chemical | 1 of 30 results | Dec 1, 2016 | Dec 1, 2016 |
| Nickel 1036 | Inorganic Chemical | 1 of 10 results | May 8, 2013 | May 8, 2013 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 30 results | Sep 3, 2009 | Sep 3, 2009 |
| Selenium 1045 | Inorganic Chemical | 1 of 10 results | Apr 11, 2005 | Apr 11, 2005 |
| Dichloromethane 2964 | Organic Chemical | 1 of 7 results | Aug 24, 2004 | Aug 24, 2004 |
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 231–240 of 395 samples, newest first — collected June 17, 2013 to September 11, 2013. The summary above covers all 395.
19 results from the 10 samples listed here: 14 detected, 5 not detected. Across the whole record it is 495 of 1,234. 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 |
|---|---|---|
|
||
| 0.1975 mg/l , sample collected Sep 11, 2013 06:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| 0.0017 mg/l , sample collected Sep 11, 2013 06:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
|
||
| 0.0099 mg/l , sample collected Sep 10, 2013 07:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| 0.0009 mg/l , sample collected Sep 10, 2013 07:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
|
||
| 0.0722 mg/l , sample collected Sep 10, 2013 05:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2013 05:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
|
||
| 0.0327 mg/l , sample collected Sep 10, 2013 08:55, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| 0.0035 mg/l , sample collected Sep 10, 2013 08:55, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
|
||
| 0.0042 mg/l , sample collected Sep 10, 2013 06:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2013 06:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
|
||
| 0.0722 mg/l , sample collected Sep 10, 2013 06:27, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| 0.0028 mg/l , sample collected Sep 10, 2013 06:27, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
|
||
| 0.0952 mg/l , sample collected Sep 10, 2013 05:15, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2013 05:15, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
|
||
| 0.0254 mg/l , sample collected Sep 10, 2013 07:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 10, 2013 07:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
|
||
| 0.1199 mg/l , sample collected Sep 10, 2013 08:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| 0.003 mg/l , sample collected Sep 10, 2013 08:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
|
||
| Not detected below 15 ug/l Minimum Reporting Level , sample collected Jun 17, 2013 01:04, sampling point TF080 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2011 – Dec 31, 2013 |
-
- Collected
- Sep 11, 2013 06:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 130913-067PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1975 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0017 mg/l
-
- Collected
- Sep 10, 2013 07:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 130913-104PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0099 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0009 mg/l
-
- Collected
- Sep 10, 2013 05:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 130913-099PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0722 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 10, 2013 08:55
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 130913-097PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0327 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0035 mg/l
-
- Collected
- Sep 10, 2013 06:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 130913-095PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0042 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 10, 2013 06:27
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 130913-092PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0722 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0028 mg/l
-
- Collected
- Sep 10, 2013 05:15
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 130913-091PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0952 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 10, 2013 07:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 130913-090PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0254 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Sep 10, 2013 08:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 130913-068PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1199 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.003 mg/l
-
- Collected
- Jun 17, 2013 01:04
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 130618-032CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 15 ug/l Minimum Reporting Level
Routine (10).