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
MS0360011 , City of Oxford
52 of the 122 analytes this system has been tested for have been detected at least once, across 1,193 samples on record.
The other 70 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 1,193 samples on record, detections range from July 30, 2002 to July 6, 2026. These figures cover the whole record; the list of samples further down is narrowed.
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 | 243 of 243 results | Jul 1, 2004 | Jun 20, 2024 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 181 of 182 results | May 17, 2004 | Jul 6, 2026 |
| Nitrate 1040 | Inorganic Chemical | 181 of 182 results | May 17, 2004 | Jul 6, 2026 |
| Barium 1010 | Inorganic Chemical | 98 of 98 results | Jul 30, 2002 | Dec 3, 2025 |
| Lead 1030 | Inorganic Chemical | 63 of 243 results | Jul 1, 2004 | Jun 19, 2024 |
| Chromium 1020 | Inorganic Chemical | 58 of 98 results | Jul 30, 2002 | Dec 3, 2025 |
| Nickel 1036 | Inorganic Chemical | 52 of 98 results | Jul 30, 2002 | Dec 3, 2025 |
| Fluoride 1025 | Inorganic Chemical | 44 of 105 results | Jul 30, 2002 | Feb 24, 2025 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 38 of 44 results | Dec 22, 2008 | Apr 3, 2018 |
| Radium-228 4030 | Radionuclide | 35 of 41 results | Dec 22, 2008 | Apr 3, 2018 |
| TTHM 2950 | Organic Chemical | 31 of 55 results | Aug 5, 2004 | Jun 9, 2026 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 25 of 53 results | Aug 31, 2005 | Apr 8, 2025 |
| Sodium 1052 | Inorganic Chemical | 24 of 24 results | Jul 18, 2008 | Feb 4, 2025 |
| Bromodichloromethane 2943 | Organic Chemical | 19 of 36 results | Jul 31, 2006 | Jun 9, 2026 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 18 of 18 results | Mar 5, 2012 | Apr 3, 2018 |
| Chloroform 2941 | Organic Chemical | 16 of 36 results | Jul 31, 2006 | Jun 9, 2026 |
| Radium-226 4020 | Radionuclide | 16 of 41 results | Jun 23, 2009 | Apr 3, 2018 |
| Dibromochloromethane 2944 | Organic Chemical | 15 of 36 results | Jul 31, 2006 | Jun 9, 2026 |
| Sulfate 1055 | Inorganic Chemical | 10 of 35 results | Jul 30, 2002 | Sep 28, 2010 |
| Bromoform 2942 | Organic Chemical | 9 of 36 results | Jul 31, 2006 | Jun 9, 2026 |
| Selenium 1045 | Inorganic Chemical | 9 of 98 results | Jul 30, 2002 | Mar 20, 2006 |
| Monochloroacetic Acid 2450 | Organic Chemical | 8 of 32 results | Dec 16, 2013 | Jun 13, 2018 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 8 of 23 results | Jun 23, 2009 | Sep 11, 2012 |
| Calcium 1016 | Inorganic Chemical | 7 of 7 results | Jul 18, 2008 | Sep 28, 2010 |
| Magnesium 1031 | Inorganic Chemical | 7 of 7 results | Jul 18, 2008 | Sep 28, 2010 |
| Manganese 1032 | Inorganic Chemical | 7 of 7 results | Jul 18, 2008 | Sep 28, 2010 |
| Potassium 1042 | Inorganic Chemical | 7 of 7 results | Jul 18, 2008 | Sep 28, 2010 |
| Residue, Total, Filterable 1057 | Water Quality | 7 of 7 results | Jul 18, 2008 | Sep 28, 2010 |
| Alkalinity, Caco3 Stability 1067 | Water Quality | 7 of 7 results | Jul 18, 2008 | Sep 28, 2010 |
| Carbon Dioxide 1901 | Water Quality | 7 of 7 results | Jul 18, 2008 | Sep 28, 2010 |
| Hardness, Total (As Caco3) 1915 | Water Quality | 7 of 7 results | Jul 18, 2008 | Sep 28, 2010 |
| Alkalinity, Total 1927 | Water Quality | 7 of 7 results | Jul 18, 2008 | Sep 28, 2010 |
| Calculated Sodium NACA | Water Quality | 7 of 7 results | Jul 18, 2008 | Sep 28, 2010 |
| PH, Field Result PHFD | Water Quality | 7 of 7 results | Jul 18, 2008 | Sep 28, 2010 |
| Cis-1,2-Dichloroethylene 2380 | Organic Chemical | 7 of 154 results | Feb 10, 2004 | May 4, 2009 |
| Dichloroacetic Acid 2451 | Organic Chemical | 6 of 32 results | Jun 30, 2008 | Jun 16, 2014 |
| Gross Alpha, Excl. Radon & U 4000 | Radionuclide | 6 of 21 results | Jun 23, 2009 | Sep 26, 2011 |
| Gross Beta Particle Activity 4100 | Radionuclide | 5 of 5 results | Jun 23, 2009 | Oct 26, 2009 |
| DI(2-Ethylhexyl) Phthalate 2039 | Organic Chemical | 4 of 29 results | Feb 25, 2009 | Aug 8, 2012 |
| Color 1905 | Water Quality | 4 of 4 results | Jul 18, 2008 | Apr 1, 2010 |
| Dibromoacetic Acid 2454 | Organic Chemical | 3 of 32 results | Jun 30, 2008 | Jun 15, 2020 |
| Chloride 1017 | Inorganic Chemical | 3 of 7 results | Apr 1, 2010 | Sep 28, 2010 |
| Mercury 1035 | Inorganic Chemical | 3 of 97 results | Mar 21, 2005 | Feb 2, 2009 |
| Dichloromethane 2964 | Organic Chemical | 3 of 154 results | Aug 3, 2004 | Aug 3, 2004 |
| Toluene 2991 | Organic Chemical | 2 of 154 results | Aug 3, 2004 | Nov 2, 2009 |
| PH 1925 | Water Quality | 2 of 2 results | Jul 18, 2008 | Sep 15, 2008 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 32 results | Jun 15, 2020 | Jun 15, 2020 |
| Xylenes, Total 2955 | Organic Chemical | 1 of 154 results | Aug 12, 2019 | Aug 12, 2019 |
| Combined Uranium 4006 | Radionuclide | 1 of 43 results | Sep 26, 2011 | Sep 26, 2011 |
| Iron, Field Result FEFD | Inorganic Chemical | 1 of 6 results | Sep 15, 2008 | Sep 15, 2008 |
| Arsenic 1005 | Inorganic Chemical | 1 of 98 results | Mar 20, 2006 | Mar 20, 2006 |
| Cadmium 1015 | Inorganic Chemical | 1 of 98 results | Feb 27, 2006 | Feb 27, 2006 |
Showing samples collected between September 26, 2024 and September 26, 2026. That is this page’s default, not a limit on what the agency records.
Choose a date range
The most recent samples, result by result
The table below lists 31–35 of 35 samples, newest first — collected October 28, 2024 to February 4, 2025. The summary above covers all 35.
5 results from the 5 samples listed here: 4 detected, 1 not detected. 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 |
|---|---|---|
|
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| 4.3 mg/l , sample collected Feb 4, 2025 07:35, sampling point TF083 | Sodium 1052 EPA method 200.7 | Jan 1, 2023 – Dec 31, 2025 |
|
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| 4.51 mg/l , sample collected Feb 4, 2025 07:46, sampling point TF082 | Sodium 1052 EPA method 200.7 | Jan 1, 2023 – Dec 31, 2025 |
|
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| 4.98 mg/l , sample collected Feb 4, 2025 08:00, sampling point TF081 | Sodium 1052 EPA method 200.7 | Jan 1, 2023 – Dec 31, 2025 |
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| 6.8 mg/l , sample collected Feb 4, 2025 10:20, sampling point TF080 | Sodium 1052 EPA method 200.7 | Jan 1, 2023 – Dec 31, 2025 |
|
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| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 28, 2024 08:30, sampling point TF083 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2022 – Dec 31, 2024 |
-
- Collected
- Feb 4, 2025 07:35
- Sampling point
- TF083 Treatment Plant T083
- Sample type
- Routine
- Lab sample
- NA-250205-047
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Sodium 1052 EPA method 200.7
- Result
- 4.3 mg/l
-
- Collected
- Feb 4, 2025 07:46
- Sampling point
- TF082 Treatment Plant T082
- Sample type
- Routine
- Lab sample
- NA-250205-048
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Sodium 1052 EPA method 200.7
- Result
- 4.51 mg/l
-
- Collected
- Feb 4, 2025 08:00
- Sampling point
- TF081 Treatment Plant T081
- Sample type
- Routine
- Lab sample
- NA-250205-049
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Sodium 1052 EPA method 200.7
- Result
- 4.98 mg/l
-
- Collected
- Feb 4, 2025 10:20
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- NA-250205-051
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Sodium 1052 EPA method 200.7
- Result
- 6.8 mg/l
-
- Collected
- Oct 28, 2024 08:30
- Sampling point
- TF083 Treatment Plant T083
- Sample type
- Routine
- Lab sample
- CN-241029-006
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2024
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
Routine (5).