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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

MS0360039 , Olin Winchester-Oxford

14 of the 51 analytes this system has been tested for have been detected at least once, across 97 samples on record.

The other 37 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 97 samples on record, detections range from September 29, 2003 to February 11, 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 Olin Winchester-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 36 of 36 results Aug 13, 2009 Aug 21, 2024
Nitrate-Nitrite 1038 Inorganic Chemical 20 of 20 results Jul 10, 2006 Feb 11, 2026
Nitrate 1040 Inorganic Chemical 20 of 20 results Jul 10, 2006 Feb 11, 2026
Lead 1030 Inorganic Chemical 12 of 36 results Aug 13, 2009 Jul 7, 2021
Barium 1010 Inorganic Chemical 7 of 7 results Sep 29, 2003 Jan 10, 2024
Nickel 1036 Inorganic Chemical 5 of 7 results Sep 29, 2003 Jan 10, 2024
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 4 of 6 results Jun 14, 2007 Aug 7, 2017
TTHM 2950 Organic Chemical 3 of 6 results Jun 14, 2007 Jun 14, 2011
Monochloroacetic Acid 2450 Organic Chemical 2 of 4 results Jul 14, 2014 Aug 7, 2017
Dichloroacetic Acid 2451 Organic Chemical 2 of 4 results Jun 30, 2008 Jun 14, 2011
Chloroform 2941 Organic Chemical 2 of 5 results Jun 30, 2008 Jun 14, 2011
Bromodichloromethane 2943 Organic Chemical 2 of 5 results Jun 30, 2008 Jun 14, 2011
Sodium 1052 Inorganic Chemical 1 of 1 result Mar 2, 2022 Mar 2, 2022
Dibromochloromethane 2944 Organic Chemical 1 of 5 results Jun 30, 2008 Jun 30, 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 31–40 of 97 samples, newest first — collected September 27, 2015 to July 23, 2018. The summary above covers all 97.

38 results from the 10 samples listed here: 13 detected, 25 not detected. Across the whole record it is 117 of 564. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

Chemical and radiological sample results for Olin Winchester-Oxford, every result from 31 to 40 of 97 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
Jul 23, 2018 04:15
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180724-019PB
Laboratory
MSDH Lab
0.0065 mg/l , sample collected Jul 23, 2018 04:15, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
0.0007 mg/l , sample collected Jul 23, 2018 04:15, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Collected
Feb 27, 2018 13:25
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
180228-025NI
Laboratory
MSDH Lab
0.52 mg/l , sample collected Feb 27, 2018 13:25, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
0.51 mg/l , sample collected Feb 27, 2018 13:25, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 27, 2018 13:25, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2018 – Dec 31, 2018
Collected
Aug 7, 2017 15:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
170808-022HA
Laboratory
MSDH Lab
0.011 mg/l , sample collected Aug 7, 2017 15:00, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 7, 2017 15:00, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 7, 2017 15:00, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 7, 2017 15:00, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 7, 2017 15:00, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.011 mg/l , sample collected Aug 7, 2017 15:00, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2015 – Dec 31, 2017
Collected
Aug 7, 2017 15:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
170808-022TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 7, 2017 15:00, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 7, 2017 15:00, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 7, 2017 15:00, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 7, 2017 15:00, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 4 ug/l Minimum Reporting Level , sample collected Aug 7, 2017 15:00, sampling point MRT000 TTHM 2950 Jan 1, 2015 – Dec 31, 2017
Collected
May 22, 2017 03:20
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
170523-011IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 22, 2017 03:20, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
0.0183 mg/l , sample collected May 22, 2017 03:20, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 22, 2017 03:20, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 22, 2017 03:20, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 22, 2017 03:20, sampling point TF080 Fluoride 1025 EPA method 300.0 Jan 1, 2016 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 22, 2017 03:20, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 22, 2017 03:20, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected May 22, 2017 03:20, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 22, 2017 03:20, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 22, 2017 03:20, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected May 22, 2017 03:20, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
Collected
May 17, 2017 14:15
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
170518-003CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 17, 2017 14:15, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2016 – Dec 31, 2018
Collected
Feb 27, 2017 14:10
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
170228-002NI
Laboratory
MSDH Lab
0.67 mg/l , sample collected Feb 27, 2017 14:10, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
0.67 mg/l , sample collected Feb 27, 2017 14:10, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 27, 2017 14:10, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Collected
Apr 20, 2016 14:05
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
160421-003NI
Laboratory
MSDH Lab
0.46 mg/l , sample collected Apr 20, 2016 14:05, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
0.46 mg/l , sample collected Apr 20, 2016 14:05, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 20, 2016 14:05, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2016 – Dec 31, 2016
Collected
Sep 27, 2015 06:08
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
151001-061PB
Laboratory
MSDH Lab
0.0222 mg/l , sample collected Sep 27, 2015 06:08, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 27, 2015 06:08, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Collected
Sep 27, 2015 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
151001-060PB
Laboratory
MSDH Lab
0.022 mg/l , sample collected Sep 27, 2015 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 27, 2015 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016

Routine (10).