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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

MS0430029 , Topisaw Creek

26 of the 57 analytes this system has been tested for have been detected at least once, across 340 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 340 samples on record, detections range from October 6, 2003 to February 23, 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 Topisaw Creek, 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 142 of 142 results Aug 30, 2007 Jul 30, 2024
Lead 1030 Inorganic Chemical 42 of 142 results Aug 30, 2007 Jul 30, 2024
Barium 1010 Inorganic Chemical 29 of 29 results Oct 6, 2003 Mar 10, 2025
Fluoride 1025 Inorganic Chemical 16 of 29 results Oct 6, 2003 Mar 10, 2025
Nickel 1036 Inorganic Chemical 16 of 29 results Oct 6, 2003 Mar 10, 2025
Chromium 1020 Inorganic Chemical 14 of 29 results Mar 10, 2004 Feb 6, 2024
Nitrate 1040 Inorganic Chemical 13 of 56 results May 24, 2004 Feb 23, 2026
Nitrate-Nitrite 1038 Inorganic Chemical 12 of 56 results Jul 17, 2006 Feb 23, 2026
Arsenic 1005 Inorganic Chemical 11 of 29 results Oct 6, 2003 Mar 10, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 11 of 11 results Mar 5, 2012 Jan 18, 2018
Sodium 1052 Inorganic Chemical 9 of 9 results Sep 16, 2019 Feb 10, 2025
TTHM 2950 Organic Chemical 5 of 19 results Aug 23, 2007 Dec 1, 2025
Combined Radium (-226 & -228) 4010 Radionuclide 5 of 11 results Mar 5, 2012 Oct 3, 2012
Radium-228 4030 Radionuclide 5 of 11 results Mar 5, 2012 Oct 3, 2012
Chloroform 2941 Organic Chemical 4 of 15 results Sep 30, 2009 Dec 1, 2025
Selenium 1045 Inorganic Chemical 4 of 29 results Mar 10, 2004 Mar 8, 2006
Bromodichloromethane 2943 Organic Chemical 2 of 15 results Sep 30, 2009 Dec 1, 2025
Dibromochloromethane 2944 Organic Chemical 2 of 15 results Sep 30, 2009 Dec 1, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 2 of 20 results Sep 30, 2009 May 21, 2024
Cadmium 1015 Inorganic Chemical 2 of 29 results Mar 28, 2005 Mar 28, 2005
Sulfate 1055 Inorganic Chemical 2 of 4 results Oct 6, 2003 Mar 10, 2004
Xylenes, Total 2955 Organic Chemical 1 of 29 results Sep 13, 2021 Sep 13, 2021
Radium-226 4020 Radionuclide 1 of 11 results Jan 18, 2018 Jan 18, 2018
Dichloroacetic Acid 2451 Organic Chemical 1 of 15 results Sep 30, 2009 Sep 30, 2009
Monobromoacetic Acid 2453 Organic Chemical 1 of 15 results Aug 23, 2007 Aug 23, 2007
Dichloromethane 2964 Organic Chemical 1 of 29 results Aug 12, 2004 Aug 12, 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 311–320 of 340 samples, newest first — collected March 28, 2005 to March 8, 2006. The summary above covers all 340.

56 results from the 10 samples listed here: 19 detected, 37 not detected. Across the whole record it is 353 of 1,647. 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 Topisaw Creek, every result from 311 to 320 of 340 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 8, 2006
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
060309-041IN
Laboratory
MSDH Lab
0.000796 mg/l , sample collected Mar 8, 2006, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.025031 mg/l , sample collected Mar 8, 2006, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.184309 mg/l , sample collected Mar 8, 2006, sampling point TF080 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF080 Uranium-238 4009 Not recorded
Collected
Mar 8, 2006
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
060309-042IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF081 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.037435 mg/l , sample collected Mar 8, 2006, sampling point TF081 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF081 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF081 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.870651 mg/l , sample collected Mar 8, 2006, sampling point TF081 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF081 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.000586 mg/l , sample collected Mar 8, 2006, sampling point TF081 Nickel 1036 EPA method 200.8 Not recorded
0.000506 mg/l , sample collected Mar 8, 2006, sampling point TF081 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF081 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF081 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF081 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF081 Uranium-238 4009 Not recorded
Collected
Mar 8, 2006
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
060309-016CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Mar 8, 2006
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
060309-033CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Mar 8, 2006, sampling point TF081 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Aug 15, 2005
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
050816-170NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Aug 15, 2005, sampling point TF081 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Aug 15, 2005, sampling point TF081 Nitrate 1040 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Aug 15, 2005, sampling point TF081 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
Aug 15, 2005
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
050816-168NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Aug 15, 2005, sampling point TF080 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Aug 15, 2005, sampling point TF080 Nitrate 1040 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Aug 15, 2005, sampling point TF080 Nitrite 1041 EPA method 353.2 Jan 1, 2005 – Dec 31, 2005
Collected
Mar 28, 2005
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
050329-011CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Mar 28, 2005, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Mar 28, 2005
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
050329-021CN
Laboratory
MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Mar 28, 2005, sampling point TF081 Cyanide 1024 EPA method QC10204001X Jan 1, 2005 – Dec 31, 2007
Collected
Mar 28, 2005
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
050329-108IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 28, 2005, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.037106 mg/l , sample collected Mar 28, 2005, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.00027 mg/l , sample collected Mar 28, 2005, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.000928 mg/l , sample collected Mar 28, 2005, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.272861 mg/l , sample collected Mar 28, 2005, sampling point TF080 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Mar 28, 2005, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.000735 mg/l , sample collected Mar 28, 2005, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
0.000661 mg/l , sample collected Mar 28, 2005, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 28, 2005, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 28, 2005, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 28, 2005, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Collected
Mar 28, 2005
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
050329-101IN
Laboratory
MSDH Lab
0.001335 mg/l , sample collected Mar 28, 2005, sampling point TF081 Arsenic 1005 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.024342 mg/l , sample collected Mar 28, 2005, sampling point TF081 Barium 1010 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.000221 mg/l , sample collected Mar 28, 2005, sampling point TF081 Cadmium 1015 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.000761 mg/l , sample collected Mar 28, 2005, sampling point TF081 Chromium 1020 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
0.369318 mg/l , sample collected Mar 28, 2005, sampling point TF081 Fluoride 1025 EPA method 380-75WE Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Mar 28, 2005, sampling point TF081 Mercury 1035 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 28, 2005, sampling point TF081 Nickel 1036 EPA method 200.8 Not recorded
0.005786 mg/l , sample collected Mar 28, 2005, sampling point TF081 Selenium 1045 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 28, 2005, sampling point TF081 Antimony, Total 1074 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 28, 2005, sampling point TF081 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 28, 2005, sampling point TF081 Thallium, Total 1085 EPA method 200.8 Jan 1, 2005 – Dec 31, 2007

Routine (10).