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
MS0480021 , Tronox
15 of the 54 analytes this system has been tested for have been detected at least once, across 140 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 140 samples on record, detections range from October 13, 2003 to March 18, 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 | 30 of 32 results | Jul 17, 2007 | Sep 6, 2023 |
| Barium 1010 | Inorganic Chemical | 16 of 16 results | Oct 13, 2003 | Mar 18, 2025 |
| Fluoride 1025 | Inorganic Chemical | 12 of 16 results | Oct 13, 2003 | Mar 18, 2025 |
| Chromium 1020 | Inorganic Chemical | 12 of 16 results | Oct 13, 2003 | May 7, 2019 |
| TTHM 2950 | Organic Chemical | 5 of 15 results | Aug 27, 2007 | Nov 6, 2024 |
| Nickel 1036 | Inorganic Chemical | 5 of 16 results | Mar 10, 2004 | May 7, 2019 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 4 of 14 results | Jun 16, 2010 | Feb 26, 2025 |
| Sulfate 1055 | Inorganic Chemical | 4 of 4 results | Oct 13, 2003 | Mar 10, 2004 |
| Dibromochloromethane 2944 | Organic Chemical | 2 of 12 results | Jul 5, 2016 | Nov 6, 2024 |
| Chloroform 2941 | Organic Chemical | 2 of 12 results | Aug 14, 2013 | Jul 5, 2016 |
| Selenium 1045 | Inorganic Chemical | 2 of 16 results | Apr 6, 2005 | Apr 6, 2005 |
| Sodium 1052 | Inorganic Chemical | 1 of 1 result | Mar 1, 2022 | Mar 1, 2022 |
| Dichloroacetic Acid 2451 | Organic Chemical | 1 of 11 results | Jul 5, 2016 | Jul 5, 2016 |
| Bromodichloromethane 2943 | Organic Chemical | 1 of 12 results | Jul 5, 2016 | Jul 5, 2016 |
| Toluene 2991 | Organic Chemical | 1 of 18 results | Nov 17, 2004 | Nov 17, 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 71–80 of 140 samples, newest first — collected August 30, 2010 to September 14, 2011. The summary above covers all 140.
42 results from the 10 samples listed here: 6 detected, 36 not detected. Across the whole record it is 98 of 872. 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 |
|---|---|---|
|
||
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2011 15:30, sampling point TF080 | 1,2,4-Trichlorobenzene 2378 EPA method 524.2 | Jan 1, 2010 – Dec 31, 2015 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2011 15:30, sampling point TF080 | Cis-1,2-Dichloroethylene 2380 EPA method 524.2 | Jan 1, 2010 – Dec 31, 2015 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2011 15:30, sampling point TF080 | Xylenes, Total 2955 EPA method 524.2 | Jan 1, 2010 – Dec 31, 2015 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2011 15:30, sampling point TF080 | Dichloromethane 2964 EPA method 524.2 | Jan 1, 2010 – Dec 31, 2015 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2011 15:30, sampling point TF080 | O-Dichlorobenzene 2968 EPA method 524.2 | Jan 1, 2010 – Dec 31, 2015 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2011 15:30, sampling point TF080 | P-Dichlorobenzene 2969 EPA method 524.2 | Jan 1, 2010 – Dec 31, 2015 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2011 15:30, sampling point TF080 | Vinyl Chloride 2976 EPA method 524.2 | Jan 1, 2010 – Dec 31, 2015 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2011 15:30, sampling point TF080 | 1,1-Dichloroethylene 2977 EPA method 524.2 | Jan 1, 2010 – Dec 31, 2015 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2011 15:30, sampling point TF080 | Trans-1,2-Dichloroethylene 2979 EPA method 524.2 | Jan 1, 2010 – Dec 31, 2015 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2011 15:30, sampling point TF080 | 1,2-Dichloroethane 2980 EPA method 524.2 | Jan 1, 2010 – Dec 31, 2015 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2011 15:30, sampling point TF080 | 1,1,1-Trichloroethane 2981 EPA method 524.2 | Jan 1, 2010 – Dec 31, 2015 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2011 15:30, sampling point TF080 | Carbon Tetrachloride 2982 EPA method 524.2 | Jan 1, 2010 – Dec 31, 2015 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2011 15:30, sampling point TF080 | 1,2-Dichloropropane 2983 EPA method 524.2 | Jan 1, 2010 – Dec 31, 2015 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2011 15:30, sampling point TF080 | Trichloroethylene 2984 EPA method 524.2 | Jan 1, 2010 – Dec 31, 2015 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2011 15:30, sampling point TF080 | 1,1,2-Trichloroethane 2985 EPA method 524.2 | Jan 1, 2010 – Dec 31, 2015 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2011 15:30, sampling point TF080 | Tetrachloroethylene 2987 EPA method 524.2 | Jan 1, 2010 – Dec 31, 2015 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2011 15:30, sampling point TF080 | Chlorobenzene 2989 EPA method 524.2 | Jan 1, 2010 – Dec 31, 2015 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2011 15:30, sampling point TF080 | Benzene 2990 EPA method 524.2 | Jan 1, 2010 – Dec 31, 2015 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2011 15:30, sampling point TF080 | Toluene 2991 EPA method 524.2 | Jan 1, 2010 – Dec 31, 2015 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2011 15:30, sampling point TF080 | Ethylbenzene 2992 EPA method 524.2 | Jan 1, 2010 – Dec 31, 2015 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Sep 14, 2011 15:30, sampling point TF080 | Styrene 2996 EPA method 524.2 | Jan 1, 2010 – Dec 31, 2015 |
|
||
| 0.0006 mg/l , sample collected Jun 16, 2011, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2009 – Dec 31, 2011 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 16, 2011, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2009 – Dec 31, 2011 |
|
||
| 0.0044 mg/l , sample collected Jun 16, 2011, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2009 – Dec 31, 2011 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 16, 2011, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2009 – Dec 31, 2011 |
|
||
| 0.0013 mg/l , sample collected Jun 16, 2011, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2009 – Dec 31, 2011 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 16, 2011, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2009 – Dec 31, 2011 |
|
||
| 0.0089 mg/l , sample collected Jun 16, 2011, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2009 – Dec 31, 2011 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 16, 2011, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2009 – Dec 31, 2011 |
|
||
| 0.0015 mg/l , sample collected Jun 16, 2011, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2009 – Dec 31, 2011 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 16, 2011, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2009 – Dec 31, 2011 |
|
||
| 0.0014 mg/l , sample collected Jun 16, 2011, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2009 – Dec 31, 2011 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 16, 2011, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2009 – Dec 31, 2011 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 7, 2011, sampling point TF080 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2011 – Dec 31, 2011 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 7, 2011, sampling point TF080 | Nitrate 1040 EPA method 353.2 | Jan 1, 2011 – Dec 31, 2011 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 7, 2011, sampling point TF080 | Nitrite 1041 EPA method 353.2 | Jan 1, 2011 – Dec 31, 2011 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 7, 2011, sampling point TF081 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2011 – Dec 31, 2011 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 7, 2011, sampling point TF081 | Nitrate 1040 EPA method 353.2 | Jan 1, 2011 – Dec 31, 2011 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 7, 2011, sampling point TF081 | Nitrite 1041 EPA method 353.2 | Jan 1, 2011 – Dec 31, 2011 |
|
||
| Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Aug 30, 2010, sampling point TF081 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2010 – Dec 31, 2010 |
| Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Aug 30, 2010, sampling point TF081 | Nitrate 1040 EPA method 353.2 | Jan 1, 2010 – Dec 31, 2010 |
| Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Aug 30, 2010, sampling point TF081 | Nitrite 1041 EPA method 353.2 | Jan 1, 2010 – Dec 31, 2010 |
-
- Collected
- Sep 14, 2011 15:30
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 110915-006VO
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2010 – Dec 31, 2015
-
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
- Jun 16, 2011
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 110617-081PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2009 – Dec 31, 2011
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0006 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 16, 2011
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 110617-080PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2009 – Dec 31, 2011
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0044 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 16, 2011
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 110617-079PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2009 – Dec 31, 2011
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0013 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 16, 2011
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 110617-078PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2009 – Dec 31, 2011
-
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
- Jun 16, 2011
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 110617-077PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2009 – Dec 31, 2011
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0015 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 16, 2011
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 110617-076PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2009 – Dec 31, 2011
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0014 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Mar 7, 2011
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 110308-097NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2011
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Mar 7, 2011
- Sampling point
- TF081 Treatment Plant T081
- Sample type
- Routine
- Lab sample
- 110308-073NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2011
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Aug 30, 2010
- Sampling point
- TF081 Treatment Plant T081
- Sample type
- Routine
- Lab sample
- 100831-073NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2010 – Dec 31, 2010
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.25 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.2 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.05 mg/l Minimum Reporting Level
Routine (10).