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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 411–420 of 510 samples, newest first — collected June 1, 2009 to October 14, 2009. The summary above covers all 510.

60 results from the 10 samples listed here: 38 detected, 22 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 411 to 420 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
Oct 14, 2009
Sampling point
WL002 Well W002
Sample type
Routine
Lab sample
091015-008PC
Laboratory
MSDH Lab
0.578 mg/l 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 Oct 14, 2009, sampling point WL002 Calcium 1016 EPA method 200.8 Not recorded
23 mg/l 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 Oct 14, 2009, sampling point WL002 Chloride 1017 EPA method 300.0 Not recorded
0.344 mg/l 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 Oct 14, 2009, sampling point WL002 Fluoride 1025 EPA method 380-75WE Not recorded
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Oct 14, 2009, sampling point WL002 Iron 1028 EPA method 200.8 Not recorded
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Oct 14, 2009, sampling point WL002 Magnesium 1031 EPA method 200.8 Not recorded
0.001 mg/l 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 Oct 14, 2009, sampling point WL002 Manganese 1032 EPA method 200.8 Not recorded
0.669 mg/l 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 Oct 14, 2009, sampling point WL002 Potassium 1042 EPA method 200.8 Not recorded
179 mg/l 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 Oct 14, 2009, sampling point WL002 Sodium 1052 EPA method 200.8 Not recorded
Not detected below 2.5 mg/l Minimum Reporting Level , sample collected Oct 14, 2009, sampling point WL002 Sulfate 1055 EPA method 300.0 Not recorded
414 mg/l 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 Oct 14, 2009, sampling point WL002 Residue, Total, Filterable 1057 EPA method CALCUL LAB Not recorded
21.4 mg/l 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 Oct 14, 2009, sampling point WL002 Alkalinity, Caco3 Stability 1067 EPA method 2320B Not recorded
0 mg/l This result is recorded as a detection, and the figure the agency wrote — "0" — 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 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 Oct 14, 2009, sampling point WL002 Carbon Dioxide 1901 EPA method CALCUL LAB Not recorded
90 units 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 Oct 14, 2009, sampling point WL002 Color 1905 EPA method 2120B Not recorded
1.9 mg/l 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 Oct 14, 2009, sampling point WL002 Hardness, Total (As Caco3) 1915 EPA method CALCUL LAB Not recorded
388 mg/l 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 Oct 14, 2009, sampling point WL002 Alkalinity, Total 1927 EPA method 2320B Not recorded
0.1 mg/l 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 Oct 14, 2009, sampling point WL002 Iron, Field Result FEFD EPA method 3500AL-D Not recorded
193.5 mg/l 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 Oct 14, 2009, sampling point WL002 Calculated Sodium NACA EPA method CALCUL LAB Not recorded
8.8 ph 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 Oct 14, 2009, sampling point WL002 PH, Field Result PHFD EPA method 3500AL-D Not recorded
Collected
Oct 14, 2009
Sampling point
WL001 Well W001
Sample type
Routine
Lab sample
091015-007PC
Laboratory
MSDH Lab
0.611 mg/l 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 Oct 14, 2009, sampling point WL001 Calcium 1016 EPA method 200.8 Not recorded
7.8 mg/l 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 Oct 14, 2009, sampling point WL001 Chloride 1017 EPA method 300.0 Not recorded
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Oct 14, 2009, sampling point WL001 Fluoride 1025 EPA method 380-75WE Not recorded
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Oct 14, 2009, sampling point WL001 Iron 1028 EPA method 200.8 Not recorded
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Oct 14, 2009, sampling point WL001 Magnesium 1031 EPA method 200.8 Not recorded
0.001 mg/l 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 Oct 14, 2009, sampling point WL001 Manganese 1032 EPA method 200.8 Not recorded
0.486 mg/l 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 Oct 14, 2009, sampling point WL001 Potassium 1042 EPA method 200.8 Not recorded
118 mg/l 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 Oct 14, 2009, sampling point WL001 Sodium 1052 EPA method 200.8 Not recorded
Not detected below 2.5 mg/l Minimum Reporting Level , sample collected Oct 14, 2009, sampling point WL001 Sulfate 1055 EPA method 300.0 Not recorded
266 mg/l 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 Oct 14, 2009, sampling point WL001 Residue, Total, Filterable 1057 EPA method CALCUL LAB Not recorded
22.9 mg/l 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 Oct 14, 2009, sampling point WL001 Alkalinity, Caco3 Stability 1067 EPA method 2320B Not recorded
0 mg/l This result is recorded as a detection, and the figure the agency wrote — "0" — 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 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 Oct 14, 2009, sampling point WL001 Carbon Dioxide 1901 EPA method CALCUL LAB Not recorded
55 units 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 Oct 14, 2009, sampling point WL001 Color 1905 EPA method 2120B Not recorded
1.9 mg/l 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 Oct 14, 2009, sampling point WL001 Hardness, Total (As Caco3) 1915 EPA method CALCUL LAB Not recorded
273 mg/l 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 Oct 14, 2009, sampling point WL001 Alkalinity, Total 1927 EPA method 2320B Not recorded
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Oct 14, 2009, sampling point WL001 Iron, Field Result FEFD EPA method 3500AL-D Not recorded
8.9 ph 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 Oct 14, 2009, sampling point WL001 PH, Field Result PHFD EPA method 3500AL-D Not recorded
Collected
Jul 20, 2009
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
090721-017HA
Laboratory
MSDH Lab
0.004 mg/l , sample collected Jul 20, 2009, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.046 mg/l , sample collected Jul 20, 2009, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.035 mg/l , sample collected Jul 20, 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 Jul 20, 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 Jul 20, 2009, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.08 mg/l , sample collected Jul 20, 2009, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jul 1, 2009 – Sep 30, 2009
Collected
Jul 20, 2009
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
090721-017TH
Laboratory
MSDH Lab
95.4 ug/l , sample collected Jul 20, 2009, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 20, 2009, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
8.21 ug/l , sample collected Jul 20, 2009, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 20, 2009, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
103.61 ug/l , sample collected Jul 20, 2009, sampling point MRT000 TTHM 2950 EPA method 524.2 Jul 1, 2009 – Sep 30, 2009
Collected
Jun 23, 2009
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
090624-065PB
Laboratory
MSDH Lab
0.0654 mg/l , sample collected Jun 23, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 23, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Jun 23, 2009
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
090624-061PB
Laboratory
MSDH Lab
0.0155 mg/l , sample collected Jun 23, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 23, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Jun 22, 2009
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
090624-063PB
Laboratory
MSDH Lab
0.012 mg/l , sample collected Jun 22, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 22, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Jun 22, 2009
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
090624-062PB
Laboratory
MSDH Lab
0.0712 mg/l , sample collected Jun 22, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 22, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Dec 31, 2011
Collected
Jun 1, 2009
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
090602-033NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Jun 1, 2009, sampling point TF102 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Jun 1, 2009, sampling point TF102 Nitrate 1040 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Jun 1, 2009, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Collected
Jun 1, 2009
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
090602-031NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Jun 1, 2009, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Jun 1, 2009, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Jun 1, 2009, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009

Routine (10).