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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 101–110 of 305 samples, newest first — collected August 25, 2020 to January 12, 2021. The summary above covers all 305.

72 results from the 10 samples listed here: 16 detected, 56 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 101 to 110 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
Jan 12, 2021 09:55
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
IN-210113-014
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 12, 2021 09:55, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021
0.0369 mg/l , sample collected Jan 12, 2021 09:55, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 12, 2021 09:55, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 12, 2021 09:55, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021
0.131 mg/l , sample collected Jan 12, 2021 09:55, sampling point TF101 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2019 – Dec 31, 2021
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 12, 2021 09:55, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Jan 12, 2021 09:55, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 12, 2021 09:55, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 12, 2021 09:55, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jan 12, 2021 09:55, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2019 – Dec 31, 2021
Collected
Dec 9, 2020 09:40
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
NI-201210-001
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Dec 9, 2020 09:40, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Oct 1, 2020 – Dec 31, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Dec 9, 2020 09:40, sampling point TF103 Nitrate 1040 EPA method QC10107041C Oct 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Dec 9, 2020 09:40, sampling point TF103 Nitrite 1041 EPA method QC10107041C Oct 1, 2020 – Dec 31, 2020
Collected
Dec 9, 2020 09:50
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
CN-201210-005
Laboratory
MSDH Lab
0.0423 mg/l , sample collected Dec 9, 2020 09:50, sampling point TF103 Cyanide 1024 EPA method QC10204001X Oct 1, 2020 – Dec 31, 2020
Collected
Dec 8, 2020 13:46
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
IN-201209-001
Laboratory
MSDH Lab
0.001 mg/l , sample collected Dec 8, 2020 13:46, sampling point TF103 Arsenic 1005 EPA method 200.8 Oct 1, 2020 – Dec 31, 2020
0.0152 mg/l , sample collected Dec 8, 2020 13:46, sampling point TF103 Barium 1010 EPA method 200.8 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 8, 2020 13:46, sampling point TF103 Cadmium 1015 EPA method 200.8 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 8, 2020 13:46, sampling point TF103 Chromium 1020 EPA method 200.8 Oct 1, 2020 – Dec 31, 2020
0.131 mg/l , sample collected Dec 8, 2020 13:46, sampling point TF103 Fluoride 1025 EPA method QC 10-109-12-2-A Oct 1, 2020 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 8, 2020 13:46, sampling point TF103 Mercury 1035 EPA method 200.8 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 8, 2020 13:46, sampling point TF103 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Dec 8, 2020 13:46, sampling point TF103 Selenium 1045 EPA method 200.8 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 8, 2020 13:46, sampling point TF103 Antimony, Total 1074 EPA method 200.8 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 8, 2020 13:46, sampling point TF103 Beryllium, Total 1075 EPA method 200.8 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Dec 8, 2020 13:46, sampling point TF103 Thallium, Total 1085 EPA method 200.8 Oct 1, 2020 – Dec 31, 2020
Collected
Oct 20, 2020 10:25
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
201021-007VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2020 10:25, sampling point TF103 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2020 10:25, sampling point TF103 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2020 10:25, sampling point TF103 Xylenes, Total 2955 EPA method 524.2 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2020 10:25, sampling point TF103 Dichloromethane 2964 EPA method 524.2 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2020 10:25, sampling point TF103 O-Dichlorobenzene 2968 EPA method 524.2 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2020 10:25, sampling point TF103 P-Dichlorobenzene 2969 EPA method 524.2 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2020 10:25, sampling point TF103 Vinyl Chloride 2976 EPA method 524.2 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2020 10:25, sampling point TF103 1,1-Dichloroethylene 2977 EPA method 524.2 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2020 10:25, sampling point TF103 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2020 10:25, sampling point TF103 1,2-Dichloroethane 2980 EPA method 524.2 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2020 10:25, sampling point TF103 1,1,1-Trichloroethane 2981 EPA method 524.2 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2020 10:25, sampling point TF103 Carbon Tetrachloride 2982 EPA method 524.2 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2020 10:25, sampling point TF103 1,2-Dichloropropane 2983 EPA method 524.2 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2020 10:25, sampling point TF103 Trichloroethylene 2984 EPA method 524.2 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2020 10:25, sampling point TF103 1,1,2-Trichloroethane 2985 EPA method 524.2 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2020 10:25, sampling point TF103 Tetrachloroethylene 2987 EPA method 524.2 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2020 10:25, sampling point TF103 Chlorobenzene 2989 EPA method 524.2 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2020 10:25, sampling point TF103 Benzene 2990 EPA method 524.2 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2020 10:25, sampling point TF103 Toluene 2991 EPA method 524.2 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2020 10:25, sampling point TF103 Ethylbenzene 2992 EPA method 524.2 Oct 1, 2020 – Dec 31, 2020
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 20, 2020 10:25, sampling point TF103 Styrene 2996 EPA method 524.2 Oct 1, 2020 – Dec 31, 2020
Collected
Sep 23, 2020 09:45
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
200924-002NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Sep 23, 2020 09:45, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jul 1, 2020 – Sep 30, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Sep 23, 2020 09:45, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jul 1, 2020 – Sep 30, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Sep 23, 2020 09:45, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jul 1, 2020 – Sep 30, 2020
Collected
Sep 23, 2020 09:46
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
200924-007RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 23, 2020 09:46, sampling point TF103 Combined Uranium 4006 EPA method 200.8 Jul 1, 2020 – Sep 30, 2020
Collected
Sep 15, 2020
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
200916-007TH
Laboratory
MSDH Lab
3.25 ug/l , sample collected Sep 15, 2020, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 15, 2020, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
1.85 ug/l , sample collected Sep 15, 2020, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 15, 2020, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
5.1 ug/l , sample collected Sep 15, 2020, sampling point MRT000 TTHM 2950 Jan 1, 2020 – Dec 31, 2020
Collected
Sep 15, 2020 10:54
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
200916-007HA
Laboratory
MSDH Lab
0.003 mg/l , sample collected Sep 15, 2020 10:54, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.002 mg/l , sample collected Sep 15, 2020 10:54, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Sep 15, 2020 10:54, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
0.006 mg/l , sample collected Sep 15, 2020 10:54, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 15, 2020 10:54, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.012 mg/l , sample collected Sep 15, 2020 10:54, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2020 – Dec 31, 2020
Collected
Aug 25, 2020 10:50
Sampling point
TF103 Treatment Facility TF103
Sample type
Routine
Lab sample
IN-200826-004
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 25, 2020 10:50, sampling point TF103 Arsenic 1005 EPA method 200.8 Jul 1, 2020 – Sep 30, 2020
0.0141 mg/l , sample collected Aug 25, 2020 10:50, sampling point TF103 Barium 1010 EPA method 200.8 Jul 1, 2020 – Sep 30, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 25, 2020 10:50, sampling point TF103 Cadmium 1015 EPA method 200.8 Jul 1, 2020 – Sep 30, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 25, 2020 10:50, sampling point TF103 Chromium 1020 EPA method 200.8 Jul 1, 2020 – Sep 30, 2020
0.101 mg/l , sample collected Aug 25, 2020 10:50, sampling point TF103 Fluoride 1025 EPA method QC 10-109-12-2-A Jul 1, 2020 – Sep 30, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 25, 2020 10:50, sampling point TF103 Mercury 1035 EPA method 200.8 Jul 1, 2020 – Sep 30, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 25, 2020 10:50, sampling point TF103 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Aug 25, 2020 10:50, sampling point TF103 Selenium 1045 EPA method 200.8 Jul 1, 2020 – Sep 30, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 25, 2020 10:50, sampling point TF103 Antimony, Total 1074 EPA method 200.8 Jul 1, 2020 – Sep 30, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 25, 2020 10:50, sampling point TF103 Beryllium, Total 1075 EPA method 200.8 Jul 1, 2020 – Sep 30, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 25, 2020 10:50, sampling point TF103 Thallium, Total 1085 EPA method 200.8 Jul 1, 2020 – Sep 30, 2020

Routine (10).