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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

MS0650013 , White Oak Water Association

42 of the 74 analytes this system has been tested for have been detected at least once, across 273 samples on record.

The other 32 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 273 samples on record, detections range from October 27, 2003 to July 1, 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 White Oak Water Association, 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 61 of 61 results Aug 14, 2007 Aug 2, 2023
Lead 1030 Inorganic Chemical 37 of 61 results Aug 14, 2007 Aug 2, 2023
Barium 1010 Inorganic Chemical 33 of 34 results Oct 27, 2003 Jul 1, 2026
Fluoride 1025 Inorganic Chemical 31 of 36 results Mar 29, 2004 Jul 1, 2026
TTHM 2950 Organic Chemical 21 of 21 results Aug 16, 2004 May 5, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 18 of 21 results Sep 10, 2007 May 5, 2026
Chloroform 2941 Organic Chemical 15 of 15 results Sep 10, 2007 May 5, 2026
Chromium 1020 Inorganic Chemical 15 of 34 results Oct 27, 2003 Apr 8, 2025
Bromodichloromethane 2943 Organic Chemical 14 of 15 results Sep 10, 2007 May 5, 2026
Dibromochloromethane 2944 Organic Chemical 14 of 15 results Sep 10, 2007 May 5, 2026
Dichloroacetic Acid 2451 Organic Chemical 12 of 14 results Aug 30, 2010 May 5, 2026
Trichloroacetic Acid 2452 Organic Chemical 12 of 14 results Aug 30, 2010 May 5, 2026
Sodium 1052 Inorganic Chemical 11 of 11 results Jun 4, 2009 Jul 1, 2026
Bromoform 2942 Organic Chemical 6 of 15 results May 21, 2024 May 5, 2026
Dibromoacetic Acid 2454 Organic Chemical 5 of 14 results May 21, 2024 May 5, 2026
Nickel 1036 Inorganic Chemical 4 of 31 results Feb 8, 2010 Feb 12, 2024
Selenium 1045 Inorganic Chemical 4 of 34 results Mar 29, 2004 Apr 10, 2006
Nitrite 1041 Inorganic Chemical 3 of 54 results Jul 31, 2006 May 13, 2020
Calcium 1016 Inorganic Chemical 2 of 2 results Jun 4, 2009 Jun 4, 2009
Iron 1028 Inorganic Chemical 2 of 2 results Jun 4, 2009 Jun 4, 2009
Manganese 1032 Inorganic Chemical 2 of 2 results Jun 4, 2009 Jun 4, 2009
Potassium 1042 Inorganic Chemical 2 of 2 results Jun 4, 2009 Jun 4, 2009
Residue, Total, Filterable 1057 Water Quality 2 of 2 results Jun 4, 2009 Jun 4, 2009
Alkalinity, Caco3 Stability 1067 Water Quality 2 of 2 results Jun 4, 2009 Jun 4, 2009
Carbon Dioxide 1901 Water Quality 2 of 2 results Jun 4, 2009 Jun 4, 2009
Color 1905 Water Quality 2 of 2 results Jun 4, 2009 Jun 4, 2009
Hardness, Total (As Caco3) 1915 Water Quality 2 of 2 results Jun 4, 2009 Jun 4, 2009
PH 1925 Water Quality 2 of 2 results Jun 4, 2009 Jun 4, 2009
Alkalinity, Total 1927 Water Quality 2 of 2 results Jun 4, 2009 Jun 4, 2009
Iron, Field Result FEFD Inorganic Chemical 2 of 2 results Jun 4, 2009 Jun 4, 2009
Calculated Sodium NACA Water Quality 2 of 2 results Jun 4, 2009 Jun 4, 2009
PH, Field Result PHFD Water Quality 2 of 2 results Jun 4, 2009 Jun 4, 2009
Cadmium 1015 Inorganic Chemical 2 of 34 results Apr 10, 2006 Apr 10, 2006
Arsenic 1005 Inorganic Chemical 1 of 34 results Feb 12, 2024 Feb 12, 2024
Monobromoacetic Acid 2453 Organic Chemical 1 of 14 results Oct 14, 2020 Oct 14, 2020
Radium-226 4020 Radionuclide 1 of 1 result Jan 15, 2020 Jan 15, 2020
Monochloroacetic Acid 2450 Organic Chemical 1 of 14 results Dec 5, 2016 Dec 5, 2016
Chloride 1017 Inorganic Chemical 1 of 2 results Jun 4, 2009 Jun 4, 2009
Magnesium 1031 Inorganic Chemical 1 of 2 results Jun 4, 2009 Jun 4, 2009
Sulfate 1055 Inorganic Chemical 1 of 6 results Jun 4, 2009 Jun 4, 2009
Thallium, Total 1085 Inorganic Chemical 1 of 34 results Apr 20, 2005 Apr 20, 2005
Cyanide 1024 Inorganic Chemical 1 of 35 results Apr 19, 2004 Apr 19, 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 141–150 of 273 samples, newest first — collected December 5, 2016 to July 24, 2017. The summary above covers all 273.

47 results from the 10 samples listed here: 20 detected, 27 not detected. Across the whole record it is 355 of 1,646. 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 White Oak Water Association, every result from 141 to 150 of 273 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 24, 2017 06:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170727-060PB
Laboratory
MSDH Lab
0.0904 mg/l , sample collected Jul 24, 2017 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0008 mg/l , sample collected Jul 24, 2017 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Jul 24, 2017 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170727-059PB
Laboratory
MSDH Lab
0.1241 mg/l , sample collected Jul 24, 2017 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0035 mg/l , sample collected Jul 24, 2017 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Jul 24, 2017 07:15
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170727-057PB
Laboratory
MSDH Lab
0.0735 mg/l , sample collected Jul 24, 2017 07:15, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0005 mg/l , sample collected Jul 24, 2017 07:15, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Jul 24, 2017 07:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
170727-051PB
Laboratory
MSDH Lab
0.0686 mg/l , sample collected Jul 24, 2017 07:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
0.0017 mg/l , sample collected Jul 24, 2017 07:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2015 – Dec 31, 2017
Collected
Mar 27, 2017 01:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
170328-087NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 27, 2017 01:00, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 27, 2017 01:00, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 27, 2017 01:00, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Collected
Mar 27, 2017 01:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
170328-086NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 27, 2017 01:00, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 27, 2017 01:00, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 27, 2017 01:00, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2017 – Dec 31, 2017
Collected
Dec 12, 2016 01:20
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
161213-142IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2016 01:20, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
0.0028 mg/l , sample collected Dec 12, 2016 01:20, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2016 01:20, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
0.0009 mg/l , sample collected Dec 12, 2016 01:20, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Dec 12, 2016 01:20, sampling point TF102 Fluoride 1025 EPA method 300.0 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2016 01:20, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2016 01:20, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Dec 12, 2016 01:20, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2016 01:20, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2016 01:20, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2016 01:20, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Collected
Dec 12, 2016 01:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
161213-141IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2016 01:00, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
0.0025 mg/l , sample collected Dec 12, 2016 01:00, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2016 01:00, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2016 01:00, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
0.109 mg/l , sample collected Dec 12, 2016 01:00, sampling point TF101 Fluoride 1025 EPA method 300.0 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2016 01:00, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2016 01:00, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Dec 12, 2016 01:00, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2016 01:00, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2016 01:00, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 12, 2016 01:00, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Collected
Dec 5, 2016 02:10
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
161206-001HA
Laboratory
MSDH Lab
0.005 mg/l , sample collected Dec 5, 2016 02:10, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.008 mg/l , sample collected Dec 5, 2016 02:10, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.01 mg/l , sample collected Dec 5, 2016 02:10, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Dec 5, 2016 02:10, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Dec 5, 2016 02:10, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.02 mg/l , sample collected Dec 5, 2016 02:10, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2014 – Dec 31, 2016
Collected
Dec 5, 2016 02:40
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
161206-001TH
Laboratory
MSDH Lab
17.7 ug/l , sample collected Dec 5, 2016 02:40, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 5, 2016 02:40, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
6.64 ug/l , sample collected Dec 5, 2016 02:40, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
1.25 ug/l , sample collected Dec 5, 2016 02:40, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
25.6 ug/l , sample collected Dec 5, 2016 02:40, sampling point MRT000 TTHM 2950 Jan 1, 2014 – Dec 31, 2016

Routine (10).