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.
| 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 1–10 of 305 samples, newest first — collected February 26, 2025 to February 25, 2026. The summary above covers all 305.
39 results from the 10 samples listed here: 13 detected, 26 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.
We withheld the location of 1 sampling point below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| Not detected below 2 ug/l Minimum Reporting Level , sample collected Feb 25, 2026 11:30, sampling point SM2 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 1.5 ug/l , sample collected Feb 25, 2026 11:30, sampling point SM2 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 1.1 ug/l , sample collected Feb 25, 2026 11:30, sampling point SM2 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 25, 2026 11:30, sampling point SM2 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 25, 2026 11:30, sampling point SM2 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 2.6 ug/l , sample collected Feb 25, 2026 11:30, sampling point SM2 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2026 – Dec 31, 2026 |
| 2.2 ug/l , sample collected Feb 25, 2026 11:30, sampling point SM2 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Feb 25, 2026 11:30, sampling point SM2 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 1.8 ug/l , sample collected Feb 25, 2026 11:30, sampling point SM2 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 1.1 ug/l , sample collected Feb 25, 2026 11:30, sampling point SM2 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 5.1 ug/l , sample collected Feb 25, 2026 11:30, sampling point SM2 | TTHM 2950 EPA method 524.2 | Jan 1, 2026 – Dec 31, 2026 |
|
||
| 5.4 ug/l , sample collected Dec 2, 2025 10:30, sampling point SM2 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Dec 2, 2025 10:30, sampling point SM2 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 3.2 ug/l , sample collected Dec 2, 2025 10:30, sampling point SM2 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 1.7 ug/l , sample collected Dec 2, 2025 10:30, sampling point SM2 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 10.3 ug/l , sample collected Dec 2, 2025 10:30, sampling point SM2 | TTHM 2950 EPA method 524.2 | Not recorded |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 17, 2025 10:20, sampling point TF102 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2023 – Dec 31, 2025 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 17, 2025 10:20, sampling point TF102 | Mercury 1035 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 15, 2025 11:30, sampling point TF103 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2025 – Dec 31, 2025 |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 10:30, sampling point TF102 | Arsenic 1005 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| 0.0169 mg/l , sample collected Mar 11, 2025 10:30, sampling point TF102 | Barium 1010 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 10:30, sampling point TF102 | Cadmium 1015 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 10:30, sampling point TF102 | Chromium 1020 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 10:30, sampling point TF102 | Fluoride 1025 EPA method QC 10-109-12-2-A | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 10:30, sampling point TF102 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 10:30, sampling point TF102 | Selenium 1045 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 10:30, sampling point TF102 | Antimony, Total 1074 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 10:30, sampling point TF102 | Beryllium, Total 1075 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 10:30, sampling point TF102 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2023 – Dec 31, 2025 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 12:05, sampling point TF103 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 12:05, sampling point TF103 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 12:05, sampling point TF103 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 10:30, sampling point TF102 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 10:30, sampling point TF102 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 10:30, sampling point TF102 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 11:15, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 11:15, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 11:15, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2025 – Dec 31, 2025 |
|
||
| 54.5 mg/l , sample collected Feb 26, 2025 11:30, sampling point TF103 | Sodium 1052 EPA method 200.7 | Jan 1, 2023 – Dec 31, 2025 |
-
- Collected
- Feb 25, 2026 11:30
- Sampling point
- SM2 Location withheld
- Sample type
- Routine
- Lab sample
- 810-182127-1
- Laboratory
- Eurofins Eaton Analytical South Bend in
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 2 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 1.5 ug/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 1.1 ug/l
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 2.6 ug/l
- Monitoring period
- Jan 1, 2026 – Dec 31, 2026
-
Chloroform 2941 EPA method 524.2
- Result
- 2.2 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 1.8 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 1.1 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 5.1 ug/l
- Monitoring period
- Jan 1, 2026 – Dec 31, 2026
-
- Collected
- Dec 2, 2025 10:30
- Sampling point
- SM2 Location withheld
- Sample type
- Routine
- Lab sample
- 810-173954-1
- Laboratory
- Eurofins Eaton Analytical South Bend in
- Monitoring period
- Not recorded
-
Chloroform 2941 EPA method 524.2
- Result
- 5.4 ug/l
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 0.5 ug/l Minimum Reporting Level
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 3.2 ug/l
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 1.7 ug/l
-
TTHM 2950 EPA method 524.2
- Result
- 10.3 ug/l
-
- Collected
- Sep 17, 2025 10:20
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- CN-250917-031
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Sep 17, 2025 10:20
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- IN-250918-012
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- May 15, 2025 11:30
- Sampling point
- TF103 Treatment Facility TF103
- Sample type
- Routine
- Lab sample
- CN-250515-019
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.015 mg/l Minimum Reporting Level
-
- Collected
- Mar 11, 2025 10:30
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- IN-250312-051
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Barium 1010 EPA method 200.8
- Result
- 0.0169 mg/l
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Chromium 1020 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Fluoride 1025 EPA method QC 10-109-12-2-A
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Nickel 1036 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Selenium 1045 EPA method 200.8
- Result
- Not detected below 0.0025 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
- Collected
- Mar 11, 2025 12:05
- Sampling point
- TF103 Treatment Facility TF103
- Sample type
- Routine
- Lab sample
- NI-250311-085
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Mar 11, 2025 10:30
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- NI-250311-084
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Mar 11, 2025 11:15
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- NI-250311-083
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2025 – Dec 31, 2025
-
Nitrate-Nitrite 1038 EPA method QC10107041C
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method QC10107041C
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method QC10107041C
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Feb 26, 2025 11:30
- Sampling point
- TF103 Treatment Facility TF103
- Sample type
- Routine
- Lab sample
- NA-250227-003
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2023 – Dec 31, 2025
-
Sodium 1052 EPA method 200.7
- Result
- 54.5 mg/l
Routine (10).