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
MS0600004 , Darling Water Association
27 of the 59 analytes this system has been tested for have been detected at least once, across 195 samples on record.
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 195 samples on record, detections range from October 27, 2003 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 | 79 of 80 results | Jul 11, 2007 | Sep 30, 2025 |
| Lead 1030 | Inorganic Chemical | 68 of 80 results | Jul 11, 2007 | Sep 30, 2025 |
| TTHM 2950 | Organic Chemical | 16 of 16 results | Jun 20, 2007 | Dec 20, 2022 |
| Chloroform 2941 | Organic Chemical | 15 of 15 results | Jun 20, 2007 | Dec 5, 2016 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 14 of 15 results | Jun 20, 2007 | Dec 20, 2022 |
| Bromodichloromethane 2943 | Organic Chemical | 14 of 15 results | Jun 20, 2007 | Dec 5, 2016 |
| Bromoform 2942 | Organic Chemical | 13 of 15 results | Jun 20, 2007 | Dec 5, 2016 |
| Dibromochloromethane 2944 | Organic Chemical | 13 of 15 results | Jun 20, 2007 | Dec 5, 2016 |
| Dichloroacetic Acid 2451 | Organic Chemical | 11 of 13 results | Oct 24, 2007 | Dec 5, 2016 |
| Xylenes, Total 2955 | Organic Chemical | 10 of 32 results | Aug 16, 2010 | Sep 21, 2021 |
| Dibromoacetic Acid 2454 | Organic Chemical | 10 of 13 results | Oct 24, 2007 | Dec 5, 2016 |
| Barium 1010 | Inorganic Chemical | 9 of 9 results | Oct 27, 2003 | Mar 25, 2025 |
| Fluoride 1025 | Inorganic Chemical | 9 of 9 results | Oct 27, 2003 | Mar 25, 2025 |
| Arsenic 1005 | Inorganic Chemical | 8 of 9 results | Mar 22, 2004 | Mar 25, 2025 |
| Chromium 1020 | Inorganic Chemical | 8 of 9 results | Oct 27, 2003 | Mar 25, 2025 |
| Trichloroacetic Acid 2452 | Organic Chemical | 8 of 13 results | Oct 24, 2007 | Dec 5, 2016 |
| Selenium 1045 | Inorganic Chemical | 7 of 9 results | Mar 22, 2004 | Oct 18, 2022 |
| Nickel 1036 | Inorganic Chemical | 6 of 9 results | Apr 12, 2006 | Mar 25, 2025 |
| Sodium 1052 | Inorganic Chemical | 2 of 2 results | Sep 17, 2019 | Nov 7, 2023 |
| Monobromoacetic Acid 2453 | Organic Chemical | 2 of 13 results | Oct 24, 2007 | Dec 5, 2016 |
| Carbon Tetrachloride 2982 | Organic Chemical | 1 of 32 results | Sep 21, 2021 | Sep 21, 2021 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 1 of 3 results | Aug 4, 2020 | Aug 4, 2020 |
| Radium-226 4020 | Radionuclide | 1 of 3 results | Aug 4, 2020 | Aug 4, 2020 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 1 of 4 results | Sep 10, 2012 | Sep 10, 2012 |
| Dichloromethane 2964 | Organic Chemical | 1 of 32 results | Aug 22, 2011 | Aug 22, 2011 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 13 results | Nov 16, 2009 | Nov 16, 2009 |
| Nitrite 1041 | Inorganic Chemical | 1 of 22 results | Jul 14, 2008 | Jul 14, 2008 |
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 101–110 of 195 samples, newest first — collected August 18, 2014 to March 30, 2015. The summary above covers all 195.
39 results from the 10 samples listed here: 17 detected, 22 not detected. Across the whole record it is 329 of 1,186. 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 |
|---|---|---|
|
||
| 0.1065 mg/l , sample collected Mar 30, 2015 07:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Jun 30, 2015 |
| 0.0015 mg/l , sample collected Mar 30, 2015 07:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Jun 30, 2015 |
|
||
| 0.0268 mg/l , sample collected Mar 30, 2015 06:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Jun 30, 2015 |
| 0.0008 mg/l , sample collected Mar 30, 2015 06:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Jun 30, 2015 |
|
||
| 0.0205 mg/l , sample collected Mar 30, 2015 06:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Jun 30, 2015 |
| 0.0006 mg/l , sample collected Mar 30, 2015 06:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Jun 30, 2015 |
|
||
| 0.6829 mg/l , sample collected Mar 30, 2015 07:15, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Jun 30, 2015 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 30, 2015 07:15, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Jun 30, 2015 |
|
||
| 0.0246 mg/l , sample collected Mar 30, 2015 07:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Jun 30, 2015 |
| 0.0021 mg/l , sample collected Mar 30, 2015 07:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Jun 30, 2015 |
|
||
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 25, 2014 13:00, sampling point TF101 | 1,2,4-Trichlorobenzene 2378 EPA method 524.2 | Jul 1, 2014 – Sep 30, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 25, 2014 13:00, sampling point TF101 | Cis-1,2-Dichloroethylene 2380 EPA method 524.2 | Jul 1, 2014 – Sep 30, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 25, 2014 13:00, sampling point TF101 | Xylenes, Total 2955 EPA method 524.2 | Jul 1, 2014 – Sep 30, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 25, 2014 13:00, sampling point TF101 | Dichloromethane 2964 EPA method 524.2 | Jul 1, 2014 – Sep 30, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 25, 2014 13:00, sampling point TF101 | O-Dichlorobenzene 2968 EPA method 524.2 | Jul 1, 2014 – Sep 30, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 25, 2014 13:00, sampling point TF101 | P-Dichlorobenzene 2969 EPA method 524.2 | Jul 1, 2014 – Sep 30, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 25, 2014 13:00, sampling point TF101 | Vinyl Chloride 2976 EPA method 524.2 | Jul 1, 2014 – Sep 30, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 25, 2014 13:00, sampling point TF101 | 1,1-Dichloroethylene 2977 EPA method 524.2 | Jul 1, 2014 – Sep 30, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 25, 2014 13:00, sampling point TF101 | Trans-1,2-Dichloroethylene 2979 EPA method 524.2 | Jul 1, 2014 – Sep 30, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 25, 2014 13:00, sampling point TF101 | 1,2-Dichloroethane 2980 EPA method 524.2 | Jul 1, 2014 – Sep 30, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 25, 2014 13:00, sampling point TF101 | 1,1,1-Trichloroethane 2981 EPA method 524.2 | Jul 1, 2014 – Sep 30, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 25, 2014 13:00, sampling point TF101 | Carbon Tetrachloride 2982 EPA method 524.2 | Jul 1, 2014 – Sep 30, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 25, 2014 13:00, sampling point TF101 | 1,2-Dichloropropane 2983 EPA method 524.2 | Jul 1, 2014 – Sep 30, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 25, 2014 13:00, sampling point TF101 | Trichloroethylene 2984 EPA method 524.2 | Jul 1, 2014 – Sep 30, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 25, 2014 13:00, sampling point TF101 | 1,1,2-Trichloroethane 2985 EPA method 524.2 | Jul 1, 2014 – Sep 30, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 25, 2014 13:00, sampling point TF101 | Tetrachloroethylene 2987 EPA method 524.2 | Jul 1, 2014 – Sep 30, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 25, 2014 13:00, sampling point TF101 | Chlorobenzene 2989 EPA method 524.2 | Jul 1, 2014 – Sep 30, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 25, 2014 13:00, sampling point TF101 | Benzene 2990 EPA method 524.2 | Jul 1, 2014 – Sep 30, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 25, 2014 13:00, sampling point TF101 | Toluene 2991 EPA method 524.2 | Jul 1, 2014 – Sep 30, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 25, 2014 13:00, sampling point TF101 | Ethylbenzene 2992 EPA method 524.2 | Jul 1, 2014 – Sep 30, 2014 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 25, 2014 13:00, sampling point TF101 | Styrene 2996 EPA method 524.2 | Jul 1, 2014 – Sep 30, 2014 |
|
||
| 2.8399 mg/l , sample collected Aug 19, 2014 07:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| 0.036 mg/l , sample collected Aug 19, 2014 07:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.0341 mg/l , sample collected Aug 18, 2014 06:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| 0.0009 mg/l , sample collected Aug 18, 2014 06:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.7646 mg/l , sample collected Aug 18, 2014 07:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| 0.0007 mg/l , sample collected Aug 18, 2014 07:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
|
||
| 0.0695 mg/l , sample collected Aug 18, 2014 07:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
| 0.0015 mg/l , sample collected Aug 18, 2014 07:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2012 – Dec 31, 2014 |
-
- Collected
- Mar 30, 2015 07:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 150401-030PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Jun 30, 2015
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1065 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0015 mg/l
-
- Collected
- Mar 30, 2015 06:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 150401-029PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Jun 30, 2015
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0268 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0008 mg/l
-
- Collected
- Mar 30, 2015 06:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 150401-028PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Jun 30, 2015
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0205 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0006 mg/l
-
- Collected
- Mar 30, 2015 07:15
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 150401-027PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Jun 30, 2015
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.6829 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Mar 30, 2015 07:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 150401-026PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Jun 30, 2015
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0246 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0021 mg/l
-
- Collected
- Aug 25, 2014 13:00
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 140826-007VO
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2014 – Sep 30, 2014
-
1,2,4-Trichlorobenzene 2378 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Cis-1,2-Dichloroethylene 2380 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Xylenes, Total 2955 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Dichloromethane 2964 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
O-Dichlorobenzene 2968 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
P-Dichlorobenzene 2969 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Vinyl Chloride 2976 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,1-Dichloroethylene 2977 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Trans-1,2-Dichloroethylene 2979 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,2-Dichloroethane 2980 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,1,1-Trichloroethane 2981 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Carbon Tetrachloride 2982 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,2-Dichloropropane 2983 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Trichloroethylene 2984 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
1,1,2-Trichloroethane 2985 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Tetrachloroethylene 2987 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Chlorobenzene 2989 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Benzene 2990 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Toluene 2991 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Ethylbenzene 2992 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Styrene 2996 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
- Collected
- Aug 19, 2014 07:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140819-100PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 2.8399 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.036 mg/l
-
- Collected
- Aug 18, 2014 06:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140819-103PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0341 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0009 mg/l
-
- Collected
- Aug 18, 2014 07:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140819-101PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.7646 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0007 mg/l
-
- Collected
- Aug 18, 2014 07:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 140819-099PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2012 – Dec 31, 2014
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0695 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0015 mg/l
Routine (10).