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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

MS0450034 , Cmu - Lake Caroline

41 of the 73 analytes this system has been tested for have been detected at least once, across 305 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 305 samples on record, detections range from October 6, 2003 to February 25, 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 Cmu - Lake Caroline, 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 63 of 63 results Aug 28, 2008 Sep 24, 2024
Lead 1030 Inorganic Chemical 56 of 63 results Aug 28, 2008 Sep 24, 2024
Barium 1010 Inorganic Chemical 34 of 34 results Oct 6, 2003 Mar 11, 2025
TTHM 2950 Organic Chemical 22 of 22 results Jul 12, 2004 Feb 25, 2026
Fluoride 1025 Inorganic Chemical 20 of 38 results Oct 6, 2003 Mar 18, 2024
Chloroform 2941 Organic Chemical 17 of 17 results Aug 20, 2007 Feb 25, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 15 of 21 results Jul 12, 2004 Feb 25, 2026
Bromodichloromethane 2943 Organic Chemical 15 of 17 results Aug 20, 2007 Feb 25, 2026
Chromium 1020 Inorganic Chemical 15 of 34 results Oct 6, 2003 Feb 6, 2024
Dibromochloromethane 2944 Organic Chemical 13 of 17 results Jul 23, 2013 Feb 25, 2026
Sodium 1052 Inorganic Chemical 11 of 11 results Aug 3, 2016 Feb 26, 2025
Dichloroacetic Acid 2451 Organic Chemical 9 of 15 results Jul 23, 2013 Feb 25, 2026
Trichloroacetic Acid 2452 Organic Chemical 8 of 15 results Jul 23, 2013 Feb 25, 2026
Sulfate 1055 Inorganic Chemical 8 of 8 results Oct 6, 2003 Apr 14, 2021
Nickel 1036 Inorganic Chemical 7 of 34 results Mar 10, 2004 Mar 17, 2021
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 13, 2011 Jul 18, 2012
Calcium 1016 Inorganic Chemical 4 of 4 results Aug 3, 2016 Apr 14, 2021
Chloride 1017 Inorganic Chemical 4 of 4 results Aug 3, 2016 Apr 14, 2021
Alkalinity, Total 1927 Water Quality 4 of 4 results Aug 3, 2016 Apr 14, 2021
Gross Alpha Particle Activity 4109 Radionuclide 4 of 4 results Dec 13, 2011 Jul 17, 2012
Conductivity @ 25 C Umhos/CM 1064 Water Quality 3 of 3 results Apr 14, 2021 Apr 14, 2021
Cyanide 1024 Inorganic Chemical 2 of 31 results Jun 3, 2015 Dec 9, 2020
Arsenic 1005 Inorganic Chemical 1 of 34 results Dec 8, 2020 Dec 8, 2020
Monochloroacetic Acid 2450 Organic Chemical 1 of 15 results Sep 15, 2020 Sep 15, 2020
Monobromoacetic Acid 2453 Organic Chemical 1 of 15 results Sep 15, 2020 Sep 15, 2020
Iron 1028 Inorganic Chemical 1 of 1 result Aug 3, 2016 Aug 3, 2016
Magnesium 1031 Inorganic Chemical 1 of 1 result Aug 3, 2016 Aug 3, 2016
Manganese 1032 Inorganic Chemical 1 of 1 result Aug 3, 2016 Aug 3, 2016
Potassium 1042 Inorganic Chemical 1 of 1 result Aug 3, 2016 Aug 3, 2016
Residue, Total, Filterable 1057 Water Quality 1 of 1 result Aug 3, 2016 Aug 3, 2016
Carbon Dioxide 1901 Water Quality 1 of 1 result Aug 3, 2016 Aug 3, 2016
Color 1905 Water Quality 1 of 4 results Aug 3, 2016 Aug 3, 2016
Hardness, Total (As Caco3) 1915 Water Quality 1 of 1 result Aug 3, 2016 Aug 3, 2016
Iron, Field Result FEFD Inorganic Chemical 1 of 1 result Aug 3, 2016 Aug 3, 2016
Calculated Sodium NACA Water Quality 1 of 1 result Aug 3, 2016 Aug 3, 2016
PH, Field Result PHFD Water Quality 1 of 1 result Aug 3, 2016 Aug 3, 2016
Carbon Tetrachloride 2982 Organic Chemical 1 of 55 results Jun 23, 2014 Jun 23, 2014
Nitrite 1041 Inorganic Chemical 1 of 54 results Feb 27, 2013 Feb 27, 2013
Selenium 1045 Inorganic Chemical 1 of 34 results Jan 11, 2010 Jan 11, 2010
Xylenes, Total 2955 Organic Chemical 1 of 54 results Sep 17, 2009 Sep 17, 2009
Dichloromethane 2964 Organic Chemical 1 of 55 results Sep 17, 2009 Sep 17, 2009

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 201–210 of 305 samples, newest first — collected July 18, 2012 to July 18, 2012. The summary above covers all 305.

22 results from the 10 samples listed here: 19 detected, 3 not detected. Across the whole record it is 358 of 2,135. 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 Cmu - Lake Caroline, every result from 201 to 210 of 305 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 18, 2012 10:45
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
201211120077
Laboratory
Radiation Safety Engineering
0.4 pci/l , sample collected Jul 18, 2012 10:45, sampling point TF101 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.29 pci/l Minimum Reporting Level , sample collected Jul 18, 2012 10:45, sampling point TF101 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.231 pci/l Minimum Reporting Level , sample collected Jul 18, 2012 10:45, sampling point TF101 Radium-226 4020 EPA method 903.1 Jul 1, 2012 – Sep 30, 2012
Not detected below 0.29 pci/l Minimum Reporting Level , sample collected Jul 18, 2012 10:45, sampling point TF101 Radium-228 4030 EPA method 904.0 Jul 1, 2012 – Sep 30, 2012
Collected
Jul 18, 2012 08:20
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
120719-012PB
Laboratory
MSDH Lab
0.4749 mg/l , sample collected Jul 18, 2012 08:20, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
0.0006 mg/l , sample collected Jul 18, 2012 08:20, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
Collected
Jul 18, 2012 07:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
120719-011PB
Laboratory
MSDH Lab
0.1615 mg/l , sample collected Jul 18, 2012 07:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
0.0028 mg/l , sample collected Jul 18, 2012 07:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
Collected
Jul 18, 2012 08:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
120719-010PB
Laboratory
MSDH Lab
0.1017 mg/l , sample collected Jul 18, 2012 08:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
0.0038 mg/l , sample collected Jul 18, 2012 08:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
Collected
Jul 18, 2012 08:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
120719-009PB
Laboratory
MSDH Lab
0.6623 mg/l , sample collected Jul 18, 2012 08:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
0.001 mg/l , sample collected Jul 18, 2012 08:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
Collected
Jul 18, 2012 06:20
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
120719-008PB
Laboratory
MSDH Lab
0.0669 mg/l , sample collected Jul 18, 2012 06:20, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
0.0007 mg/l , sample collected Jul 18, 2012 06:20, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
Collected
Jul 18, 2012 08:35
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
120719-007PB
Laboratory
MSDH Lab
0.3427 mg/l , sample collected Jul 18, 2012 08:35, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
0.0086 mg/l , sample collected Jul 18, 2012 08:35, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
Collected
Jul 18, 2012 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
120719-006PB
Laboratory
MSDH Lab
0.0757 mg/l , sample collected Jul 18, 2012 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
0.0014 mg/l , sample collected Jul 18, 2012 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
Collected
Jul 18, 2012 06:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
120719-005PB
Laboratory
MSDH Lab
0.2847 mg/l , sample collected Jul 18, 2012 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
0.0007 mg/l , sample collected Jul 18, 2012 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
Collected
Jul 18, 2012 05:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
120719-004PB
Laboratory
MSDH Lab
0.2376 mg/l , sample collected Jul 18, 2012 05:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012
0.0012 mg/l , sample collected Jul 18, 2012 05:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2010 – Dec 31, 2012

Routine (10).