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
MS0150020 , Copiah W/A - Bayou Pierre #2
11 of the 13 analytes this system has been tested for have been detected at least once, across 135 samples on record.
The other 2 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 135 samples on record, detections range from May 4, 1994 to September 30, 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 | 83 of 113 results | Dec 28, 2000 | Sep 30, 2025 |
| Lead 1030 | Inorganic Chemical | 48 of 113 results | May 4, 1994 | Apr 6, 2022 |
| TTHM 2950 | Organic Chemical | 9 of 11 results | May 19, 2004 | Oct 30, 2018 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 8 of 11 results | Jun 27, 2007 | Feb 5, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 5 of 8 results | Dec 28, 2009 | Oct 30, 2018 |
| Dichloroacetic Acid 2451 | Organic Chemical | 3 of 7 results | Jul 10, 2012 | Aug 27, 2014 |
| Trichloroacetic Acid 2452 | Organic Chemical | 3 of 7 results | Aug 14, 2008 | Aug 27, 2014 |
| Bromodichloromethane 2943 | Organic Chemical | 3 of 8 results | Dec 28, 2009 | Aug 27, 2014 |
| Chloroform 2941 | Organic Chemical | 2 of 8 results | Jun 25, 2013 | Aug 27, 2014 |
| Monochloroacetic Acid 2450 | Organic Chemical | 2 of 7 results | Dec 28, 2009 | Jul 10, 2012 |
| Dibromoacetic Acid 2454 | Organic Chemical | 1 of 7 results | Jun 25, 2013 | Jun 25, 2013 |
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 71–80 of 135 samples, newest first — collected July 12, 2012 to August 18, 2015. The summary above covers all 135.
34 results from the 10 samples listed here: 23 detected, 11 not detected. Across the whole record it is 167 of 315. 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 |
|---|---|---|
|
||
| 0.0072 mg/l , sample collected Aug 18, 2015 17:45, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2013 – Dec 31, 2015 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 18, 2015 17:45, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2013 – Dec 31, 2015 |
|
||
| 0.0102 mg/l , sample collected Aug 18, 2015 17:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2013 – Dec 31, 2015 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 18, 2015 17:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2013 – Dec 31, 2015 |
|
||
| 0.0112 mg/l , sample collected Aug 18, 2015 20:47, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2013 – Dec 31, 2015 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 18, 2015 20:47, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2013 – Dec 31, 2015 |
|
||
| 3.62 ug/l , sample collected Aug 27, 2014 12:00, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 27, 2014 12:00, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 3.56 ug/l , sample collected Aug 27, 2014 12:00, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 4.15 ug/l , sample collected Aug 27, 2014 12:00, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 11.33 ug/l , sample collected Aug 27, 2014 12:00, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2014 – Dec 31, 2016 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 27, 2014 12:00, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.003 mg/l , sample collected Aug 27, 2014 12:00, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 0.002 mg/l , sample collected Aug 27, 2014 12:00, sampling point MRT000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 27, 2014 12:00, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 27, 2014 12:00, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.005 mg/l , sample collected Aug 27, 2014 12:00, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2014 – Dec 31, 2016 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jun 25, 2013 11:30, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.004 mg/l , sample collected Jun 25, 2013 11:30, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 0.003 mg/l , sample collected Jun 25, 2013 11:30, sampling point MRT000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 25, 2013 11:30, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| 0.001 mg/l , sample collected Jun 25, 2013 11:30, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.008 mg/l , sample collected Jun 25, 2013 11:30, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2013 – Dec 31, 2013 |
|
||
| 6.74 ug/l , sample collected Jun 25, 2013 11:30, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 25, 2013 11:30, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 5.23 ug/l , sample collected Jun 25, 2013 11:30, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 2.94 ug/l , sample collected Jun 25, 2013 11:30, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 14.91 ug/l , sample collected Jun 25, 2013 11:30, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2013 – Dec 31, 2013 |
|
||
| 0.0089 mg/l , sample collected Jul 12, 2012 08:21, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 12, 2012 08:21, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.009 mg/l , sample collected Jul 12, 2012 09:41, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| 0.0015 mg/l , sample collected Jul 12, 2012 09:41, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.0513 mg/l , sample collected Jul 12, 2012 06:15, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| 0.0013 mg/l , sample collected Jul 12, 2012 06:15, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
-
- Collected
- Aug 18, 2015 17:45
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 150820-133PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2013 – Dec 31, 2015
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0072 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Aug 18, 2015 17:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 150820-085PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2013 – Dec 31, 2015
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0102 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Aug 18, 2015 20:47
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 150820-084PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2013 – Dec 31, 2015
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0112 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Aug 27, 2014 12:00
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 140828-002TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 3.62 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 3.56 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 4.15 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 11.33 ug/l
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
- Collected
- Aug 27, 2014 12:00
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 140828-002HA
- Laboratory
- MSDH Lab
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 0.002 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 0.003 mg/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 0.002 mg/l
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- 0.005 mg/l
- Monitoring period
- Jan 1, 2014 – Dec 31, 2016
-
- Collected
- Jun 25, 2013 11:30
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 130626-001HA
- Laboratory
- MSDH Lab
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 0.002 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 0.004 mg/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 0.003 mg/l
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- 0.001 mg/l
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- 0.008 mg/l
- Monitoring period
- Jan 1, 2013 – Dec 31, 2013
-
- Collected
- Jun 25, 2013 11:30
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 130626-001TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 6.74 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 5.23 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 2.94 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 14.91 ug/l
- Monitoring period
- Jan 1, 2013 – Dec 31, 2013
-
- Collected
- Jul 12, 2012 08:21
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 120713-029PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0089 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 12, 2012 09:41
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 120713-028PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.009 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0015 mg/l
-
- Collected
- Jul 12, 2012 06:15
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 120713-027PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0513 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0013 mg/l
Routine (10).