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 221–230 of 305 samples, newest first — collected December 13, 2011 to April 19, 2012. The summary above covers all 305.

26 results from the 10 samples listed here: 4 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 221 to 230 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 Apr 19, 2012 10:35 Sampling point TF101 Treatment Plant T101 Sample type Routine Lab sample 120420-005 Laboratory Radiation Safety Engineering
0.4 pci/l , sample collected Apr 19, 2012 10:35, 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 Apr 19, 2012 10:35, sampling point TF101	Combined Radium (-226 & -228) 4010	Not recorded
Not detected below 0.231 pci/l Minimum Reporting Level , sample collected Apr 19, 2012 10:35, sampling point TF101	Radium-226 4020 EPA method 903.1	Apr 1, 2012 – Jun 30, 2012
Not detected below 0.29 pci/l Minimum Reporting Level , sample collected Apr 19, 2012 10:35, sampling point TF101	Radium-228 4030 EPA method 904.0	Apr 1, 2012 – Jun 30, 2012
Collected Apr 19, 2012 09:45 Sampling point TF102 Treatment Plant T102 Sample type Routine Lab sample 120420-030RU Laboratory MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 19, 2012 09:45, sampling point TF102	Combined Uranium 4006 EPA method 200.8	Apr 1, 2012 – Jun 30, 2012
Collected Apr 19, 2012 10:35 Sampling point TF101 Treatment Plant T101 Sample type Routine Lab sample 120420-005RU Laboratory MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 19, 2012 10:35, sampling point TF101	Combined Uranium 4006 EPA method 200.8	Apr 1, 2012 – Jun 30, 2012
Collected Feb 29, 2012 10:50 Sampling point TF102 Treatment Plant T102 Sample type Routine Lab sample 120301-038NI Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 29, 2012 10:50, sampling point TF102	Nitrate-Nitrite 1038 EPA method 353.2	Jan 1, 2012 – Dec 31, 2012
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 29, 2012 10:50, sampling point TF102	Nitrate 1040 EPA method 353.2	Jan 1, 2012 – Dec 31, 2012
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 29, 2012 10:50, sampling point TF102	Nitrite 1041 EPA method 353.2	Jan 1, 2012 – Dec 31, 2012
Collected Feb 29, 2012 11:15 Sampling point TF101 Treatment Plant T101 Sample type Routine Lab sample 120301-034NI Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 29, 2012 11:15, sampling point TF101	Nitrate-Nitrite 1038 EPA method 353.2	Jan 1, 2012 – Dec 31, 2012
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 29, 2012 11:15, sampling point TF101	Nitrate 1040 EPA method 353.2	Jan 1, 2012 – Dec 31, 2012
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 29, 2012 11:15, sampling point TF101	Nitrite 1041 EPA method 353.2	Jan 1, 2012 – Dec 31, 2012
Collected Feb 14, 2012 13:46 Sampling point TF102 Treatment Plant T102 Sample type Routine Lab sample 120215-041 Laboratory Radiation Safety Engineering
Not detected below 0.25 pci/l Minimum Reporting Level , sample collected Feb 14, 2012 13:46, sampling point TF102	Combined Radium (-226 & -228) 4010	Not recorded
Not detected below 0.196 pci/l Minimum Reporting Level , sample collected Feb 14, 2012 13:46, sampling point TF102	Radium-226 4020 EPA method 903.1	Jan 1, 2012 – Mar 31, 2012
Not detected below 0.25 pci/l Minimum Reporting Level , sample collected Feb 14, 2012 13:46, sampling point TF102	Radium-228 4030 EPA method 904	Jan 1, 2012 – Mar 31, 2012
0.6 pci/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 Feb 14, 2012 13:46, sampling point TF102	Gross Alpha Particle Activity 4109 EPA method 00-02	Jan 1, 2012 – Mar 31, 2012
Collected Feb 14, 2012 14:16 Sampling point TF101 Treatment Plant T101 Sample type Routine Lab sample 120215-012 Laboratory Radiation Safety Engineering
0.4 pci/l , sample collected Feb 14, 2012 14:16, 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 Feb 14, 2012 14:16, sampling point TF101	Combined Radium (-226 & -228) 4010	Not recorded
Not detected below 0.231 pci/l Minimum Reporting Level , sample collected Feb 14, 2012 14:16, sampling point TF101	Radium-226 4020 EPA method 903.1	Jan 1, 2012 – Mar 31, 2012
Not detected below 0.29 pci/l Minimum Reporting Level , sample collected Feb 14, 2012 14:16, sampling point TF101	Radium-228 4030 EPA method 904.0	Jan 1, 2012 – Mar 31, 2012
Collected Feb 14, 2012 13:46 Sampling point TF102 Treatment Plant T102 Sample type Routine Lab sample 120215-041RU Laboratory MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 14, 2012 13:46, sampling point TF102	Combined Uranium 4006 EPA method 200.8	Jan 1, 2012 – Mar 31, 2012
Collected Feb 14, 2012 14:16 Sampling point TF101 Treatment Plant T101 Sample type Routine Lab sample 120215-012RU Laboratory MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 14, 2012 14:16, sampling point TF101	Combined Uranium 4006 EPA method 200.8	Jan 1, 2012 – Mar 31, 2012
Collected Dec 13, 2011 10:00 Sampling point TF102 Treatment Plant T102 Sample type Routine Lab sample 111214-032 Laboratory Radiation Safety Engineering
Not detected below 0.25 pci/l Minimum Reporting Level , sample collected Dec 13, 2011 10:00, sampling point TF102	Combined Radium (-226 & -228) 4010	Not recorded
Not detected below 0.196 pci/l Minimum Reporting Level , sample collected Dec 13, 2011 10:00, sampling point TF102	Radium-226 4020 EPA method 903.1	Oct 1, 2011 – Dec 31, 2011
Not detected below 0.25 pci/l Minimum Reporting Level , sample collected Dec 13, 2011 10:00, sampling point TF102	Radium-228 4030 EPA method 904	Oct 1, 2011 – Dec 31, 2011
0.6 pci/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 Dec 13, 2011 10:00, sampling point TF102	Gross Alpha Particle Activity 4109 EPA method 00-02	Oct 1, 2011 – Dec 31, 2011

Collected
Apr 19, 2012 10:35

Sampling point
TF101 Treatment Plant T101

Sample type
Routine

Lab sample
120420-005

Laboratory
Radiation Safety Engineering
- Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
  
  Result
  0.4 pci/l
  
  Monitoring period
  Not recorded
- Combined Radium (-226 & -228) 4010
  
  Result
  Not detected below 0.29 pci/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Radium-226 4020 EPA method 903.1
  
  Result
  Not detected below 0.231 pci/l Minimum Reporting Level
  
  Monitoring period
  Apr 1, 2012 – Jun 30, 2012
- Radium-228 4030 EPA method 904.0
  
  Result
  Not detected below 0.29 pci/l Minimum Reporting Level
  
  Monitoring period
  Apr 1, 2012 – Jun 30, 2012
Collected
Apr 19, 2012 09:45

Sampling point
TF102 Treatment Plant T102

Sample type
Routine

Lab sample
120420-030RU

Laboratory
MSDH Lab

Monitoring period
Apr 1, 2012 – Jun 30, 2012
- Combined Uranium 4006 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
Collected
Apr 19, 2012 10:35

Sampling point
TF101 Treatment Plant T101

Sample type
Routine

Lab sample
120420-005RU

Laboratory
MSDH Lab

Monitoring period
Apr 1, 2012 – Jun 30, 2012
- Combined Uranium 4006 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
Collected
Feb 29, 2012 10:50

Sampling point
TF102 Treatment Plant T102

Sample type
Routine

Lab sample
120301-038NI

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2012 – Dec 31, 2012
- Nitrate-Nitrite 1038 EPA method 353.2
  
  Result
  Not detected below 0.1 mg/l Minimum Reporting Level
- Nitrate 1040 EPA method 353.2
  
  Result
  Not detected below 0.08 mg/l Minimum Reporting Level
- Nitrite 1041 EPA method 353.2
  
  Result
  Not detected below 0.02 mg/l Minimum Reporting Level
Collected
Feb 29, 2012 11:15

Sampling point
TF101 Treatment Plant T101

Sample type
Routine

Lab sample
120301-034NI

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2012 – Dec 31, 2012
- Nitrate-Nitrite 1038 EPA method 353.2
  
  Result
  Not detected below 0.1 mg/l Minimum Reporting Level
- Nitrate 1040 EPA method 353.2
  
  Result
  Not detected below 0.08 mg/l Minimum Reporting Level
- Nitrite 1041 EPA method 353.2
  
  Result
  Not detected below 0.02 mg/l Minimum Reporting Level
Collected
Feb 14, 2012 13:46

Sampling point
TF102 Treatment Plant T102

Sample type
Routine

Lab sample
120215-041

Laboratory
Radiation Safety Engineering
- Combined Radium (-226 & -228) 4010
  
  Result
  Not detected below 0.25 pci/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Radium-226 4020 EPA method 903.1
  
  Result
  Not detected below 0.196 pci/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2012 – Mar 31, 2012
- Radium-228 4030 EPA method 904
  
  Result
  Not detected below 0.25 pci/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2012 – Mar 31, 2012
- Gross Alpha Particle Activity 4109 EPA method 00-02
  
  Result
  0.6 pci/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.
  
  Monitoring period
  Jan 1, 2012 – Mar 31, 2012
Collected
Feb 14, 2012 14:16

Sampling point
TF101 Treatment Plant T101

Sample type
Routine

Lab sample
120215-012

Laboratory
Radiation Safety Engineering
- Gross Alpha, Incl. Radon & U 4002 EPA method 00-02
  
  Result
  0.4 pci/l
  
  Monitoring period
  Not recorded
- Combined Radium (-226 & -228) 4010
  
  Result
  Not detected below 0.29 pci/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Radium-226 4020 EPA method 903.1
  
  Result
  Not detected below 0.231 pci/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2012 – Mar 31, 2012
- Radium-228 4030 EPA method 904.0
  
  Result
  Not detected below 0.29 pci/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2012 – Mar 31, 2012
Collected
Feb 14, 2012 13:46

Sampling point
TF102 Treatment Plant T102

Sample type
Routine

Lab sample
120215-041RU

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2012 – Mar 31, 2012
- Combined Uranium 4006 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
Collected
Feb 14, 2012 14:16

Sampling point
TF101 Treatment Plant T101

Sample type
Routine

Lab sample
120215-012RU

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2012 – Mar 31, 2012
- Combined Uranium 4006 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
Collected
Dec 13, 2011 10:00

Sampling point
TF102 Treatment Plant T102

Sample type
Routine

Lab sample
111214-032

Laboratory
Radiation Safety Engineering
- Combined Radium (-226 & -228) 4010
  
  Result
  Not detected below 0.25 pci/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Radium-226 4020 EPA method 903.1
  
  Result
  Not detected below 0.196 pci/l Minimum Reporting Level
  
  Monitoring period
  Oct 1, 2011 – Dec 31, 2011
- Radium-228 4030 EPA method 904
  
  Result
  Not detected below 0.25 pci/l Minimum Reporting Level
  
  Monitoring period
  Oct 1, 2011 – Dec 31, 2011
- Gross Alpha Particle Activity 4109 EPA method 00-02
  
  Result
  0.6 pci/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.
  
  Monitoring period
  Oct 1, 2011 – Dec 31, 2011

Routine (10).