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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

MS0810007 , Town of Oakland

41 of the 72 analytes this system has been tested for have been detected at least once, across 273 samples on record.

The other 31 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 November 24, 2003 to February 10, 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 Town of Oakland, 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 Sep 25, 2008 Aug 31, 2023
Lead 1030 Inorganic Chemical 41 of 61 results Sep 25, 2008 Aug 31, 2023
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 25 of 28 results Aug 16, 2010 Feb 10, 2026
TTHM 2950 Organic Chemical 25 of 27 results Aug 30, 2004 Feb 10, 2026
Fluoride 1025 Inorganic Chemical 25 of 26 results Nov 24, 2003 Apr 8, 2025
Barium 1010 Inorganic Chemical 24 of 24 results Nov 24, 2003 Apr 8, 2025
Dichloroacetic Acid 2451 Organic Chemical 17 of 21 results Aug 16, 2010 Feb 10, 2026
Chromium 1020 Inorganic Chemical 17 of 24 results Nov 24, 2003 Apr 8, 2025
Chloroform 2941 Organic Chemical 16 of 18 results Aug 16, 2010 Feb 10, 2026
Trichloroacetic Acid 2452 Organic Chemical 14 of 21 results Aug 16, 2010 Feb 10, 2026
Bromodichloromethane 2943 Organic Chemical 14 of 18 results Aug 16, 2010 Feb 10, 2026
Dibromochloromethane 2944 Organic Chemical 14 of 18 results Aug 16, 2010 Feb 10, 2026
Dibromoacetic Acid 2454 Organic Chemical 13 of 21 results Aug 16, 2010 Feb 10, 2026
Bromoform 2942 Organic Chemical 11 of 18 results Aug 16, 2010 Feb 10, 2026
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Dec 21, 2011 Jul 13, 2012
Arsenic 1005 Inorganic Chemical 8 of 24 results Apr 17, 2006 Apr 8, 2025
Selenium 1045 Inorganic Chemical 8 of 24 results Apr 27, 2004 Dec 6, 2022
Sodium 1052 Inorganic Chemical 5 of 5 results Apr 20, 2009 Nov 5, 2024
Monochloroacetic Acid 2450 Organic Chemical 5 of 21 results Aug 16, 2010 Jul 12, 2018
Nickel 1036 Inorganic Chemical 4 of 24 results May 4, 2005 Apr 8, 2025
Monobromoacetic Acid 2453 Organic Chemical 4 of 21 results Aug 16, 2010 Mar 9, 2012
Cyanide 1024 Inorganic Chemical 2 of 26 results May 4, 2005 Dec 27, 2016
Thallium, Total 1085 Inorganic Chemical 2 of 24 results Oct 20, 2010 Oct 20, 2010
Calcium 1016 Inorganic Chemical 2 of 2 results Apr 20, 2009 Apr 22, 2010
Chloride 1017 Inorganic Chemical 2 of 2 results Apr 20, 2009 Apr 22, 2010
Manganese 1032 Inorganic Chemical 2 of 2 results Apr 20, 2009 Apr 22, 2010
Potassium 1042 Inorganic Chemical 2 of 2 results Apr 20, 2009 Apr 22, 2010
Sulfate 1055 Inorganic Chemical 2 of 7 results Nov 24, 2003 Apr 22, 2010
Residue, Total, Filterable 1057 Water Quality 2 of 2 results Apr 20, 2009 Apr 22, 2010
Alkalinity, Caco3 Stability 1067 Water Quality 2 of 2 results Apr 20, 2009 Apr 22, 2010
Carbon Dioxide 1901 Water Quality 2 of 2 results Apr 20, 2009 Apr 22, 2010
Color 1905 Water Quality 2 of 2 results Apr 20, 2009 Apr 22, 2010
Hardness, Total (As Caco3) 1915 Water Quality 2 of 2 results Apr 20, 2009 Apr 22, 2010
Alkalinity, Total 1927 Water Quality 2 of 2 results Apr 20, 2009 Apr 22, 2010
Calculated Sodium NACA Water Quality 2 of 2 results Apr 20, 2009 Apr 22, 2010
PH, Field Result PHFD Water Quality 2 of 2 results Apr 20, 2009 Apr 22, 2010
Toluene 2991 Organic Chemical 1 of 42 results Sep 23, 2013 Sep 23, 2013
Magnesium 1031 Inorganic Chemical 1 of 2 results Apr 22, 2010 Apr 22, 2010
Nitrate-Nitrite 1038 Inorganic Chemical 1 of 47 results Jun 10, 2009 Jun 10, 2009
Nitrate 1040 Inorganic Chemical 1 of 47 results Jun 10, 2009 Jun 10, 2009
Mercury 1035 Inorganic Chemical 1 of 24 results Apr 27, 2004 Apr 27, 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 181–190 of 273 samples, newest first — collected May 5, 2010 to March 28, 2011. The summary above covers all 273.

52 results from the 10 samples listed here: 20 detected, 32 not detected. Across the whole record it is 396 of 1,761. 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 Town of Oakland, every result from 181 to 190 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
Mar 28, 2011
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
110329-001TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 28, 2011, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 28, 2011, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 28, 2011, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 28, 2011, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
Not detected below 4 ug/l Minimum Reporting Level , sample collected Mar 28, 2011, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2011 – Mar 31, 2011
Collected
Mar 28, 2011
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
110329-001HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Mar 28, 2011, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 28, 2011, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 28, 2011, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 28, 2011, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Mar 28, 2011, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0 This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Mar 28, 2011, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2011 – Mar 31, 2011
Collected
Oct 20, 2010
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
101021-007IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 20, 2010, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.004947 mg/l , sample collected Oct 20, 2010, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 20, 2010, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 20, 2010, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.127 mg/l , sample collected Oct 20, 2010, sampling point TF101 Fluoride 1025 EPA method 380-75WE Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 20, 2010, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 20, 2010, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Oct 20, 2010, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 20, 2010, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 20, 2010, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.001356 mg/l , sample collected Oct 20, 2010, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Oct 20, 2010
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
101021-006IN
Laboratory
MSDH Lab
0.000708 mg/l , sample collected Oct 20, 2010, sampling point TF103 Arsenic 1005 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.009353 mg/l , sample collected Oct 20, 2010, sampling point TF103 Barium 1010 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 20, 2010, sampling point TF103 Cadmium 1015 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.00079 mg/l , sample collected Oct 20, 2010, sampling point TF103 Chromium 1020 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.159 mg/l , sample collected Oct 20, 2010, sampling point TF103 Fluoride 1025 EPA method 380-75WE Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 20, 2010, sampling point TF103 Mercury 1035 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 20, 2010, sampling point TF103 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Oct 20, 2010, sampling point TF103 Selenium 1045 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 20, 2010, sampling point TF103 Antimony, Total 1074 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 20, 2010, sampling point TF103 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.001815 mg/l , sample collected Oct 20, 2010, sampling point TF103 Thallium, Total 1085 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Sep 29, 2010
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
100930-042NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Sep 29, 2010, sampling point TF101 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 Sep 29, 2010, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Sep 29, 2010, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Collected
Sep 29, 2010
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
100930-041NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Sep 29, 2010, sampling point TF103 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 Sep 29, 2010, sampling point TF103 Nitrate 1040 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Sep 29, 2010, sampling point TF103 Nitrite 1041 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Collected
Aug 16, 2010
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
100817-021TH
Laboratory
MSDH Lab
20.8 ug/l , sample collected Aug 16, 2010, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
6.45 ug/l , sample collected Aug 16, 2010, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
26.1 ug/l , sample collected Aug 16, 2010, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
32 ug/l , sample collected Aug 16, 2010, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
85.35 ug/l , sample collected Aug 16, 2010, sampling point MRT000 TTHM 2950 EPA method 524.2 Jul 1, 2010 – Sep 30, 2010
Collected
Aug 16, 2010
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
100817-020HA
Laboratory
MSDH Lab
0.007 mg/l , sample collected Aug 16, 2010, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.01 mg/l , sample collected Aug 16, 2010, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.013 mg/l , sample collected Aug 16, 2010, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Aug 16, 2010, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.007 mg/l , sample collected Aug 16, 2010, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.03 mg/l , sample collected Aug 16, 2010, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jul 1, 2010 – Sep 30, 2010
Collected
May 5, 2010
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
100506-011CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected May 5, 2010, sampling point TF103 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
May 5, 2010
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
100506-010CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected May 5, 2010, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010

Routine (10).