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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 171–180 of 305 samples, newest first — collected May 20, 2015 to June 30, 2015. The summary above covers all 305.

38 results from the 10 samples listed here: 16 detected, 22 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 171 to 180 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
Jun 30, 2015 07:37
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
150701-020PB
Laboratory
MSDH Lab
0.3403 mg/l , sample collected Jun 30, 2015 07:37, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2013 – Dec 31, 2015
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 30, 2015 07:37, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2013 – Dec 31, 2015
Collected
Jun 30, 2015 07:50
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
150701-015PB
Laboratory
MSDH Lab
0.0783 mg/l , sample collected Jun 30, 2015 07:50, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2013 – Dec 31, 2015
0.0016 mg/l , sample collected Jun 30, 2015 07:50, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2013 – Dec 31, 2015
Collected
Jun 30, 2015 08:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
150701-014PB
Laboratory
MSDH Lab
0.2681 mg/l , sample collected Jun 30, 2015 08:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2013 – Dec 31, 2015
0.005 mg/l , sample collected Jun 30, 2015 08:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2013 – Dec 31, 2015
Collected
Jun 30, 2015 05:20
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
150701-013PB
Laboratory
MSDH Lab
0.2043 mg/l , sample collected Jun 30, 2015 05:20, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2013 – Dec 31, 2015
0.0005 mg/l , sample collected Jun 30, 2015 05:20, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2013 – Dec 31, 2015
Collected
Jun 30, 2015 10:30
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
150701-012PB
Laboratory
MSDH Lab
0.3343 mg/l , sample collected Jun 30, 2015 10:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2013 – Dec 31, 2015
0.0015 mg/l , sample collected Jun 30, 2015 10:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2013 – Dec 31, 2015
Collected
Jun 30, 2015 08:45
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
150701-011PB
Laboratory
MSDH Lab
0.3646 mg/l , sample collected Jun 30, 2015 08:45, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2013 – Dec 31, 2015
0.0062 mg/l , sample collected Jun 30, 2015 08:45, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2013 – Dec 31, 2015
Collected
Jun 30, 2015 08:15
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
150701-010PB
Laboratory
MSDH Lab
0.1976 mg/l , sample collected Jun 30, 2015 08:15, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2013 – Dec 31, 2015
0.0018 mg/l , sample collected Jun 30, 2015 08:15, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2013 – Dec 31, 2015
Collected
Jun 30, 2015 05:50
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
150701-009PB
Laboratory
MSDH Lab
0.1555 mg/l , sample collected Jun 30, 2015 05:50, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2013 – Dec 31, 2015
0.0052 mg/l , sample collected Jun 30, 2015 05:50, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2013 – Dec 31, 2015
Collected
Jun 3, 2015 12:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
150604-001CN
Laboratory
MSDH Lab
0.025 mg/l , sample collected Jun 3, 2015 12:00, sampling point TF102 Cyanide 1024 EPA method QC10204001X Jan 1, 2014 – Dec 31, 2016
Collected
May 20, 2015 08:57
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
150521-008VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2015 08:57, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Apr 1, 2015 – Jun 30, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2015 08:57, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Apr 1, 2015 – Jun 30, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2015 08:57, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Apr 1, 2015 – Jun 30, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2015 08:57, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Apr 1, 2015 – Jun 30, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2015 08:57, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Apr 1, 2015 – Jun 30, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2015 08:57, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Apr 1, 2015 – Jun 30, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2015 08:57, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Apr 1, 2015 – Jun 30, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2015 08:57, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Apr 1, 2015 – Jun 30, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2015 08:57, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Apr 1, 2015 – Jun 30, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2015 08:57, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Apr 1, 2015 – Jun 30, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2015 08:57, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Apr 1, 2015 – Jun 30, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2015 08:57, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Apr 1, 2015 – Jun 30, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2015 08:57, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Apr 1, 2015 – Jun 30, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2015 08:57, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Apr 1, 2015 – Jun 30, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2015 08:57, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Apr 1, 2015 – Jun 30, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2015 08:57, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Apr 1, 2015 – Jun 30, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2015 08:57, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Apr 1, 2015 – Jun 30, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2015 08:57, sampling point TF101 Benzene 2990 EPA method 524.2 Apr 1, 2015 – Jun 30, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2015 08:57, sampling point TF101 Toluene 2991 EPA method 524.2 Apr 1, 2015 – Jun 30, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2015 08:57, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Apr 1, 2015 – Jun 30, 2015
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 20, 2015 08:57, sampling point TF101 Styrene 2996 EPA method 524.2 Apr 1, 2015 – Jun 30, 2015

Routine (10).