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
MS0600016 , West Lambert Water Association
9 of the 13 analytes this system has been tested for have been detected at least once, across 87 samples on record.
The other 4 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 87 samples on record, detections range from August 9, 2004 to September 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 | 67 of 67 results | Jul 10, 2007 | Sep 19, 2025 |
| Lead 1030 | Inorganic Chemical | 33 of 67 results | Jul 10, 2007 | Sep 18, 2025 |
| TTHM 2950 | Organic Chemical | 9 of 10 results | Aug 9, 2004 | Sep 16, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 7 of 10 results | Jun 18, 2007 | Sep 16, 2025 |
| Chloroform 2941 | Organic Chemical | 3 of 6 results | Sep 2, 2009 | Sep 11, 2017 |
| Dichloroacetic Acid 2451 | Organic Chemical | 3 of 5 results | Sep 2, 2009 | Aug 21, 2017 |
| Bromodichloromethane 2943 | Organic Chemical | 2 of 6 results | Sep 2, 2009 | Sep 11, 2017 |
| Dibromochloromethane 2944 | Organic Chemical | 2 of 6 results | Sep 2, 2009 | Sep 11, 2017 |
| Trichloroacetic Acid 2452 | Organic Chemical | 2 of 5 results | Sep 2, 2009 | Jul 21, 2014 |
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 61–70 of 87 samples, newest first — collected June 14, 2011 to August 18, 2014. The summary above covers all 87.
34 results from the 10 samples listed here: 15 detected, 19 not detected. Across the whole record it is 128 of 203. 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 |
|---|---|---|
|
||
| 0.0047 mg/l , sample collected Aug 18, 2014 05:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| 0.0012 mg/l , sample collected Aug 18, 2014 05:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.002 mg/l , sample collected Aug 18, 2014 05:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| 0.0019 mg/l , sample collected Aug 18, 2014 05:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.0093 mg/l , sample collected Aug 18, 2014 05:50, 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 Aug 18, 2014 05:50, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.0028 mg/l , sample collected Aug 17, 2014 08:00, 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 Aug 17, 2014 08:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.01 mg/l , sample collected Aug 15, 2014 07:15, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| 0.0052 mg/l , sample collected Aug 15, 2014 07:15, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 2.6 ug/l , sample collected Jul 21, 2014 01:06, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 01:06, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 01:06, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 01:06, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 2.6 ug/l , sample collected Jul 21, 2014 01:06, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2013 – Dec 31, 2015 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jul 21, 2014 01:02, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.003 mg/l , sample collected Jul 21, 2014 01:02, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 0.001 mg/l , sample collected Jul 21, 2014 01:02, sampling point MRT000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 21, 2014 01:02, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 21, 2014 01:02, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.004 mg/l , sample collected Jul 21, 2014 01:02, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2013 – Dec 31, 2015 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 27, 2011 01:40, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 27, 2011 01:40, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 27, 2011 01:40, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 27, 2011 01:40, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| Not detected below 4 ug/l Minimum Reporting Level , sample collected Jun 27, 2011 01:40, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2010 – Dec 31, 2012 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jun 27, 2011 01:15, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 27, 2011 01:15, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 27, 2011 01:15, 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 27, 2011 01:15, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 27, 2011 01:15, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| Not detected below 0.006 mg/l Minimum Reporting Level , sample collected Jun 27, 2011 01:15, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2010 – Dec 31, 2012 |
|
||
| 0.0115 mg/l , sample collected Jun 14, 2011, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Not recorded |
| 0.0009 mg/l , sample collected Jun 14, 2011, sampling point DS000 | Lead 1030 EPA method 200.8 | Not recorded |
-
- Collected
- Aug 18, 2014 05:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140819-134PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0047 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0012 mg/l
-
- Collected
- Aug 18, 2014 05:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140819-131PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.002 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0019 mg/l
-
- Collected
- Aug 18, 2014 05:50
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140819-130PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0093 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Aug 17, 2014 08:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140819-132PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0028 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Aug 15, 2014 07:15
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140819-133PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.01 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0052 mg/l
-
- Collected
- Jul 21, 2014 01:06
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 140722-027TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 2.6 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
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 2.6 ug/l
- Monitoring period
- Jan 1, 2013 – Dec 31, 2015
-
- Collected
- Jul 21, 2014 01:02
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 140722-029HA
- 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
- 0.001 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
- 0.004 mg/l
- Monitoring period
- Jan 1, 2013 – Dec 31, 2015
-
- Collected
- Jun 27, 2011 01:40
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 110628-008TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- 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
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- Not detected below 4 ug/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2010 – Dec 31, 2012
-
- Collected
- Jun 27, 2011 01:15
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 110628-003HA
- 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
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- 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
- Not detected below 0.006 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2010 – Dec 31, 2012
-
- Collected
- Jun 14, 2011
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 110615-160PB
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0115 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0009 mg/l
Routine (10).