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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.

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.

Every analyte ever detected for City of Oxford, with how many results found it and when it was first and last detected. Covers the whole record, not only 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

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 31–40 of 1,193 samples, newest first — collected June 20, 2024 to February 4, 2025. The summary above covers all 1,193.

15 results from the 10 samples listed here: 9 detected, 6 not detected. Across the whole record it is 1,332 of 7,221. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

We withheld the location of 4 sampling points below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.

Chemical and radiological sample results for City of Oxford, every result from 31 to 40 of 1,193 samples shown, newest first. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
Feb 4, 2025 07:35
Sampling point
TF083 Treatment Plant T083
Sample type
Routine
Lab sample
NA-250205-047
Laboratory
MSDH Lab
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
Collected
Feb 4, 2025 07:46
Sampling point
TF082 Treatment Plant T082
Sample type
Routine
Lab sample
NA-250205-048
Laboratory
MSDH Lab
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
Collected
Feb 4, 2025 08:00
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
NA-250205-049
Laboratory
MSDH Lab
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
Collected
Feb 4, 2025 10:20
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NA-250205-051
Laboratory
MSDH Lab
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
Collected
Oct 28, 2024 08:30
Sampling point
TF083 Treatment Plant T083
Sample type
Routine
Lab sample
CN-241029-006
Laboratory
MSDH Lab
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
Jun 20, 2024 06:00
Sampling point
LC0052 Location withheld
Sample type
Routine
Lab sample
PB-240621-026
Laboratory
MSDH Lab
0.0029 mg/l , sample collected Jun 20, 2024 06:00, sampling point LC0052 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 20, 2024 06:00, sampling point LC0052 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Jun 20, 2024 15:00
Sampling point
LC0001 Location withheld
Sample type
Routine
Lab sample
PB-240621-021
Laboratory
MSDH Lab
0.0139 mg/l , sample collected Jun 20, 2024 15:00, sampling point LC0001 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 20, 2024 15:00, sampling point LC0001 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Jun 20, 2024 08:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-240621-027
Laboratory
MSDH Lab
0.0239 mg/l , sample collected Jun 20, 2024 08:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 20, 2024 08:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Jun 20, 2024 07:50
Sampling point
LC0032 Location withheld
Sample type
Routine
Lab sample
PB-240621-022
Laboratory
MSDH Lab
0.144 mg/l , sample collected Jun 20, 2024 07:50, sampling point LC0032 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 20, 2024 07:50, sampling point LC0032 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Collected
Jun 20, 2024 07:30
Sampling point
LC0016 Location withheld
Sample type
Routine
Lab sample
PB-240621-028
Laboratory
MSDH Lab
0.0024 mg/l , sample collected Jun 20, 2024 07:30, sampling point LC0016 Copper, Free 1022 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 20, 2024 07:30, sampling point LC0016 Lead 1030 EPA method 200.8 Jan 1, 2022 – Dec 31, 2024

Routine (10).