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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

MS0630037 , Truelight Redevelopment GRP #2

40 of the 74 analytes this system has been tested for have been detected at least once, across 510 samples on record.

The other 34 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 510 samples on record, detections range from October 22, 2003 to October 12, 2025. 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 Truelight Redevelopment GRP #2, 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
TTHM 2950 Organic Chemical 143 of 153 results Sep 20, 2004 Oct 12, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 137 of 149 results Sep 20, 2004 Oct 12, 2025
Chloroform 2941 Organic Chemical 75 of 77 results May 23, 2006 Jun 25, 2024
Dichloroacetic Acid 2451 Organic Chemical 69 of 72 results Feb 25, 2008 Jun 25, 2024
Bromodichloromethane 2943 Organic Chemical 69 of 77 results May 23, 2006 Jun 25, 2024
Trichloroacetic Acid 2452 Organic Chemical 67 of 72 results Feb 25, 2008 Jun 25, 2024
Copper, Free 1022 Inorganic Chemical 46 of 46 results Jul 25, 2006 Aug 9, 2017
Monochloroacetic Acid 2450 Organic Chemical 38 of 72 results Nov 10, 2008 Jun 25, 2024
Fluoride 1025 Inorganic Chemical 31 of 32 results Oct 22, 2003 May 8, 2025
Barium 1010 Inorganic Chemical 28 of 28 results Oct 22, 2003 May 8, 2025
Chromium 1020 Inorganic Chemical 19 of 28 results Oct 22, 2003 May 8, 2025
Lead 1030 Inorganic Chemical 15 of 46 results Jul 25, 2006 Aug 9, 2017
Monobromoacetic Acid 2453 Organic Chemical 12 of 72 results Nov 10, 2008 Nov 16, 2020
Dibromochloromethane 2944 Organic Chemical 9 of 77 results May 23, 2006 Mar 27, 2024
Nickel 1036 Inorganic Chemical 5 of 28 results May 13, 2013 Mar 26, 2025
Sodium 1052 Inorganic Chemical 5 of 5 results Oct 14, 2009 Nov 13, 2023
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 5, 2011 Jul 10, 2012
Calcium 1016 Inorganic Chemical 4 of 4 results Oct 14, 2009 Sep 25, 2020
Chloride 1017 Inorganic Chemical 4 of 4 results Oct 14, 2009 Sep 25, 2020
Manganese 1032 Inorganic Chemical 4 of 4 results Oct 14, 2009 Sep 25, 2020
Potassium 1042 Inorganic Chemical 4 of 4 results Oct 14, 2009 Sep 25, 2020
Residue, Total, Filterable 1057 Water Quality 4 of 4 results Oct 14, 2009 Sep 25, 2020
Alkalinity, Caco3 Stability 1067 Water Quality 4 of 4 results Oct 14, 2009 Sep 25, 2020
Carbon Dioxide 1901 Water Quality 4 of 4 results Oct 14, 2009 Sep 25, 2020
Color 1905 Water Quality 4 of 4 results Oct 14, 2009 Sep 25, 2020
Hardness, Total (As Caco3) 1915 Water Quality 4 of 4 results Oct 14, 2009 Sep 25, 2020
Alkalinity, Total 1927 Water Quality 4 of 4 results Oct 14, 2009 Sep 25, 2020
Calculated Sodium NACA Water Quality 3 of 3 results Oct 14, 2009 Sep 25, 2020
PH, Field Result PHFD Water Quality 3 of 3 results Oct 14, 2009 Sep 25, 2020
Iron 1028 Inorganic Chemical 2 of 4 results Sep 25, 2020 Sep 25, 2020
Magnesium 1031 Inorganic Chemical 2 of 4 results Sep 25, 2020 Sep 25, 2020
Iron, Field Result FEFD Inorganic Chemical 2 of 3 results Oct 14, 2009 Sep 25, 2020
Dibromoacetic Acid 2454 Organic Chemical 2 of 72 results Nov 10, 2008 Feb 14, 2017
Gross Alpha Particle Activity 4109 Radionuclide 2 of 4 results Jun 25, 2012 Sep 10, 2012
Selenium 1045 Inorganic Chemical 2 of 28 results Feb 8, 2010 Feb 8, 2010
Carbon Tetrachloride 2982 Organic Chemical 1 of 25 results Oct 25, 2022 Oct 25, 2022
Cyanide 1024 Inorganic Chemical 1 of 33 results Sep 15, 2022 Sep 15, 2022
Nitrate-Nitrite 1038 Inorganic Chemical 1 of 52 results Jan 12, 2022 Jan 12, 2022
Nitrate 1040 Inorganic Chemical 1 of 52 results Jan 12, 2022 Jan 12, 2022
Nitrite 1041 Inorganic Chemical 1 of 52 results Jul 31, 2006 Jul 31, 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 401–410 of 510 samples, newest first — collected November 19, 2009 to June 14, 2010. The summary above covers all 510.

57 results from the 10 samples listed here: 28 detected, 29 not detected. Across the whole record it is 836 of 2,203. 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 Truelight Redevelopment GRP #2, every result from 401 to 410 of 510 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
Jun 14, 2010
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
100615-004HA
Laboratory
MSDH Lab
0.003 mg/l , sample collected Jun 14, 2010, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.046 mg/l , sample collected Jun 14, 2010, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.039 mg/l , sample collected Jun 14, 2010, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 14, 2010, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 14, 2010, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.08 mg/l , sample collected Jun 14, 2010, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Apr 1, 2010 – Jun 30, 2010
Collected
Jun 14, 2010
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
100615-004TH
Laboratory
MSDH Lab
98.9 ug/l , sample collected Jun 14, 2010, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 14, 2010, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
9 ug/l , sample collected Jun 14, 2010, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 14, 2010, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
107.9 ug/l , sample collected Jun 14, 2010, sampling point MRT000 TTHM 2950 EPA method 524.2 Apr 1, 2010 – Jun 30, 2010
Collected
Mar 22, 2010
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
100323-018CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected Mar 22, 2010, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
Mar 22, 2010
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
100323-015CN
Laboratory
MSDH Lab
Not detected below 15 ug/l Minimum Reporting Level , sample collected Mar 22, 2010, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2008 – Dec 31, 2010
Collected
Mar 4, 2010
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
100305-002TH
Laboratory
MSDH Lab
82.5 ug/l , sample collected Mar 4, 2010, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 4, 2010, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
8.37 ug/l , sample collected Mar 4, 2010, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Mar 4, 2010, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
90.87 ug/l , sample collected Mar 4, 2010, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2010 – Mar 31, 2010
Collected
Mar 4, 2010
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
100305-002HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Mar 4, 2010, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.008 mg/l , sample collected Mar 4, 2010, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.042 mg/l , sample collected Mar 4, 2010, 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 4, 2010, 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 4, 2010, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.05 mg/l , sample collected Mar 4, 2010, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2010 – Mar 31, 2010
Collected
Feb 8, 2010
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
100209-005IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 8, 2010, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.0047 mg/l , sample collected Feb 8, 2010, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 8, 2010, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.0087 mg/l , sample collected Feb 8, 2010, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.271 mg/l , sample collected Feb 8, 2010, sampling point TF101 Fluoride 1025 EPA method 380-75WE Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Feb 8, 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 Feb 8, 2010, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
0.0008 mg/l , sample collected Feb 8, 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 Feb 8, 2010, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 8, 2010, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 8, 2010, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Feb 8, 2010
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
100209-004IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 8, 2010, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.0051 mg/l , sample collected Feb 8, 2010, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 8, 2010, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.0075 mg/l , sample collected Feb 8, 2010, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.495 mg/l , sample collected Feb 8, 2010, sampling point TF102 Fluoride 1025 EPA method 380-75WE Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Feb 8, 2010, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 8, 2010, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
0.001 mg/l , sample collected Feb 8, 2010, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 8, 2010, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Feb 8, 2010, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 8, 2010, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Nov 19, 2009
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
091120-002HA
Laboratory
MSDH Lab
0.005 mg/l , sample collected Nov 19, 2009, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.051 mg/l , sample collected Nov 19, 2009, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.043 mg/l , sample collected Nov 19, 2009, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 19, 2009, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 19, 2009, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.09 mg/l , sample collected Nov 19, 2009, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Oct 1, 2009 – Dec 31, 2009
Collected
Nov 19, 2009
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
091120-002TH
Laboratory
MSDH Lab
100 ug/l , sample collected Nov 19, 2009, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 19, 2009, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
8.9 ug/l , sample collected Nov 19, 2009, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 19, 2009, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
108.9 ug/l , sample collected Nov 19, 2009, sampling point MRT000 TTHM 2950 EPA method 524.2 Oct 1, 2009 – Dec 31, 2009

Routine (10).