Chemical and radiological sample results

MS0620001 , C & C W/A

30 of the 57 analytes this system has been tested for have been detected at least once, across 450 samples on record.

The other 27 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 450 samples on record, detections range from October 22, 2003 to October 21, 2025. 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 C & C W/A, 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
Total Haloacetic Acids (Haa5) 2456	Organic Chemical	74 of 75 results	Nov 17, 2005	Oct 21, 2025
TTHM 2950	Organic Chemical	74 of 75 results	Nov 17, 2005	Oct 21, 2025
Copper, Free 1022	Inorganic Chemical	57 of 57 results	Aug 16, 2007	Jul 24, 2023
Chloroform 2941	Organic Chemical	41 of 41 results	Oct 9, 2006	Oct 21, 2025
Bromodichloromethane 2943	Organic Chemical	41 of 41 results	Oct 9, 2006	Oct 21, 2025
Lead 1030	Inorganic Chemical	38 of 57 results	Aug 16, 2007	Jul 24, 2023
Dichloroacetic Acid 2451	Organic Chemical	36 of 36 results	Feb 27, 2008	Oct 21, 2025
Trichloroacetic Acid 2452	Organic Chemical	36 of 36 results	Feb 27, 2008	Oct 21, 2025
Barium 1010	Inorganic Chemical	33 of 33 results	Oct 22, 2003	Mar 24, 2025
Fluoride 1025	Inorganic Chemical	33 of 33 results	Oct 22, 2003	Mar 24, 2025
Chromium 1020	Inorganic Chemical	21 of 33 results	Oct 22, 2003	Jan 9, 2024
Dibromochloromethane 2944	Organic Chemical	15 of 41 results	Nov 3, 2008	Sep 1, 2020
Gross Alpha, Incl. Radon & U 4002	Radionuclide	15 of 15 results	Mar 12, 2012	Oct 3, 2012
Dibromoacetic Acid 2454	Organic Chemical	12 of 36 results	Nov 3, 2008	Sep 1, 2020
Bromoform 2942	Organic Chemical	11 of 41 results	Nov 3, 2008	Sep 1, 2020
Monochloroacetic Acid 2450	Organic Chemical	9 of 36 results	May 11, 2009	Feb 24, 2020
Nickel 1036	Inorganic Chemical	6 of 33 results	Dec 3, 2007	Mar 31, 2014
Selenium 1045	Inorganic Chemical	5 of 33 results	Mar 24, 2004	Feb 1, 2010
Nitrite 1041	Inorganic Chemical	5 of 67 results	Jun 9, 2004	Oct 3, 2005
Arsenic 1005	Inorganic Chemical	4 of 33 results	Nov 3, 2008	Oct 17, 2022
Monobromoacetic Acid 2453	Organic Chemical	4 of 36 results	Nov 27, 2017	Feb 24, 2020
Sodium 1052	Inorganic Chemical	3 of 3 results	Nov 6, 2023	Nov 6, 2023
Nitrate-Nitrite 1038	Inorganic Chemical	2 of 67 results	Jun 9, 2004	Jun 9, 2004
Nitrate 1040	Inorganic Chemical	2 of 67 results	Jun 9, 2004	Jun 9, 2004
Xylenes, Total 2955	Organic Chemical	1 of 72 results	Oct 3, 2012	Oct 3, 2012
Carbon Tetrachloride 2982	Organic Chemical	1 of 72 results	Oct 3, 2012	Oct 3, 2012
Ethylbenzene 2992	Organic Chemical	1 of 72 results	Oct 3, 2012	Oct 3, 2012
Toluene 2991	Organic Chemical	1 of 72 results	Sep 13, 2004	Sep 13, 2004
Dichloromethane 2964	Organic Chemical	1 of 72 results	Sep 2, 2004	Sep 2, 2004
Sulfate 1055	Inorganic Chemical	1 of 4 results	Oct 22, 2003	Oct 22, 2003

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 131–140 of 450 samples, newest first — collected December 2, 2019 to May 11, 2020. The summary above covers all 450.

44 results from the 10 samples listed here: 26 detected, 18 not detected. Across the whole record it is 583 of 2,803. 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 2 sampling points 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.

Chemical and radiological sample results for C & C W/A, every result from 131 to 140 of 450 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 May 11, 2020 13:49 Sampling point TF102 Treatment Plant T102 Sample type Routine Lab sample 200512-002NI Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 11, 2020 13:49, sampling point TF102	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2020 – Dec 31, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 11, 2020 13:49, sampling point TF102	Nitrate 1040 EPA method QC10107041C	Jan 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 11, 2020 13:49, sampling point TF102	Nitrite 1041 EPA method QC10107041C	Jan 1, 2020 – Dec 31, 2020
Collected Feb 24, 2020 15:42 Sampling point SMT Location withheld Sample type Routine Lab sample 200225-004HA Laboratory MSDH Lab
0.003 mg/l , sample collected Feb 24, 2020 15:42, sampling point SMT	Monochloroacetic Acid 2450 EPA method 552.2	Not recorded
0.022 mg/l , sample collected Feb 24, 2020 15:42, sampling point SMT	Dichloroacetic Acid 2451 EPA method 552.2	Not recorded
0.037 mg/l , sample collected Feb 24, 2020 15:42, sampling point SMT	Trichloroacetic Acid 2452 EPA method 552.2	Not recorded
0.002 mg/l , sample collected Feb 24, 2020 15:42, sampling point SMT	Monobromoacetic Acid 2453 EPA method 552.2	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Feb 24, 2020 15:42, sampling point SMT	Dibromoacetic Acid 2454 EPA method 552.2	Not recorded
0.064 mg/l , sample collected Feb 24, 2020 15:42, sampling point SMT	Total Haloacetic Acids (Haa5) 2456	Jan 1, 2020 – Mar 31, 2020
Collected Feb 24, 2020 15:42 Sampling point SMT Location withheld Sample type Routine Lab sample 200225-004TH Laboratory MSDH Lab
71.6 ug/l , sample collected Feb 24, 2020 15:42, sampling point SMT	Chloroform 2941 EPA method 524.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 24, 2020 15:42, sampling point SMT	Bromoform 2942 EPA method 524.2	Not recorded
2.97 ug/l , sample collected Feb 24, 2020 15:42, sampling point SMT	Bromodichloromethane 2943 EPA method 524.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 24, 2020 15:42, sampling point SMT	Dibromochloromethane 2944 EPA method 524.2	Not recorded
74.6 ug/l , sample collected Feb 24, 2020 15:42, sampling point SMT	TTHM 2950	Jan 1, 2020 – Mar 31, 2020
Collected Feb 24, 2020 14:50 Sampling point SMH Location withheld Sample type Routine Lab sample 200225-003HA Laboratory MSDH Lab
0.009 mg/l , sample collected Feb 24, 2020 14:50, sampling point SMH	Monochloroacetic Acid 2450 EPA method 552.2	Not recorded
0.01 mg/l , sample collected Feb 24, 2020 14:50, sampling point SMH	Dichloroacetic Acid 2451 EPA method 552.2	Not recorded
0.012 mg/l , sample collected Feb 24, 2020 14:50, sampling point SMH	Trichloroacetic Acid 2452 EPA method 552.2	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Feb 24, 2020 14:50, sampling point SMH	Monobromoacetic Acid 2453 EPA method 552.2	Not recorded
0.002 mg/l , sample collected Feb 24, 2020 14:50, sampling point SMH	Dibromoacetic Acid 2454 EPA method 552.2	Not recorded
0.03 mg/l , sample collected Feb 24, 2020 14:50, sampling point SMH	Total Haloacetic Acids (Haa5) 2456	Jan 1, 2020 – Mar 31, 2020
Collected Feb 24, 2020 14:50 Sampling point SMH Location withheld Sample type Routine Lab sample 200225-003TH Laboratory MSDH Lab
27.8 ug/l , sample collected Feb 24, 2020 14:50, sampling point SMH	Chloroform 2941 EPA method 524.2	Not recorded
1.45 ug/l , sample collected Feb 24, 2020 14:50, sampling point SMH	Bromoform 2942 EPA method 524.2	Not recorded
13.2 ug/l , sample collected Feb 24, 2020 14:50, sampling point SMH	Bromodichloromethane 2943 EPA method 524.2	Not recorded
11.6 ug/l , sample collected Feb 24, 2020 14:50, sampling point SMH	Dibromochloromethane 2944 EPA method 524.2	Not recorded
54.1 ug/l , sample collected Feb 24, 2020 14:50, sampling point SMH	TTHM 2950	Jan 1, 2020 – Mar 31, 2020
Collected Dec 17, 2019 14:10 Sampling point TF105 Sample type Routine Lab sample 191218-009NI Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Dec 17, 2019 14:10, sampling point TF105	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2019 – Dec 31, 2019
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Dec 17, 2019 14:10, sampling point TF105	Nitrate 1040 EPA method QC10107041C	Jan 1, 2019 – Dec 31, 2019
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Dec 17, 2019 14:10, sampling point TF105	Nitrite 1041 EPA method QC10107041C	Jan 1, 2019 – Dec 31, 2019
Collected Dec 17, 2019 14:26 Sampling point TF102 Treatment Plant T102 Sample type Routine Lab sample 191218-008NI Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Dec 17, 2019 14:26, sampling point TF102	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2019 – Dec 31, 2019
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Dec 17, 2019 14:26, sampling point TF102	Nitrate 1040 EPA method QC10107041C	Jan 1, 2019 – Dec 31, 2019
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Dec 17, 2019 14:26, sampling point TF102	Nitrite 1041 EPA method QC10107041C	Jan 1, 2019 – Dec 31, 2019
Collected Dec 17, 2019 13:50 Sampling point TF104 Treatment Plant T104 Sample type Routine Lab sample 191218-007NI Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Dec 17, 2019 13:50, sampling point TF104	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2019 – Dec 31, 2019
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Dec 17, 2019 13:50, sampling point TF104	Nitrate 1040 EPA method QC10107041C	Jan 1, 2019 – Dec 31, 2019
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Dec 17, 2019 13:50, sampling point TF104	Nitrite 1041 EPA method QC10107041C	Jan 1, 2019 – Dec 31, 2019
Collected Dec 2, 2019 16:02 Sampling point SMT Location withheld Sample type Routine Lab sample 191203-004TH Laboratory MSDH Lab
65.8 ug/l , sample collected Dec 2, 2019 16:02, sampling point SMT	Chloroform 2941 EPA method 524.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 2, 2019 16:02, sampling point SMT	Bromoform 2942 EPA method 524.2	Not recorded
2.81 ug/l , sample collected Dec 2, 2019 16:02, sampling point SMT	Bromodichloromethane 2943 EPA method 524.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Dec 2, 2019 16:02, sampling point SMT	Dibromochloromethane 2944 EPA method 524.2	Not recorded
68.6 ug/l , sample collected Dec 2, 2019 16:02, sampling point SMT	TTHM 2950	Oct 1, 2019 – Dec 31, 2019
Collected Dec 2, 2019 15:20 Sampling point SMH Location withheld Sample type Routine Lab sample 191203-003TH Laboratory MSDH Lab
4.45 ug/l , sample collected Dec 2, 2019 15:20, sampling point SMH	Chloroform 2941 EPA method 524.2	Not recorded
1.1 ug/l , sample collected Dec 2, 2019 15:20, sampling point SMH	Bromoform 2942 EPA method 524.2	Not recorded
4.5 ug/l , sample collected Dec 2, 2019 15:20, sampling point SMH	Bromodichloromethane 2943 EPA method 524.2	Not recorded
4.83 ug/l , sample collected Dec 2, 2019 15:20, sampling point SMH	Dibromochloromethane 2944 EPA method 524.2	Not recorded
14.9 ug/l , sample collected Dec 2, 2019 15:20, sampling point SMH	TTHM 2950	Oct 1, 2019 – Dec 31, 2019

Collected
May 11, 2020 13:49

Sampling point
TF102 Treatment Plant T102

Sample type
Routine

Lab sample
200512-002NI

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2020 – Dec 31, 2020
- 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 24, 2020 15:42

Sampling point
SMT Location withheld

Sample type
Routine

Lab sample
200225-004HA

Laboratory
MSDH Lab
- Monochloroacetic Acid 2450 EPA method 552.2
  
  Result
  0.003 mg/l
  
  Monitoring period
  Not recorded
- Dichloroacetic Acid 2451 EPA method 552.2
  
  Result
  0.022 mg/l
  
  Monitoring period
  Not recorded
- Trichloroacetic Acid 2452 EPA method 552.2
  
  Result
  0.037 mg/l
  
  Monitoring period
  Not recorded
- Monobromoacetic Acid 2453 EPA method 552.2
  
  Result
  0.002 mg/l
  
  Monitoring period
  Not recorded
- Dibromoacetic Acid 2454 EPA method 552.2
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Total Haloacetic Acids (Haa5) 2456
  
  Result
  0.064 mg/l
  
  Monitoring period
  Jan 1, 2020 – Mar 31, 2020
Collected
Feb 24, 2020 15:42

Sampling point
SMT Location withheld

Sample type
Routine

Lab sample
200225-004TH

Laboratory
MSDH Lab
- Chloroform 2941 EPA method 524.2
  
  Result
  71.6 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  2.97 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- TTHM 2950
  
  Result
  74.6 ug/l
  
  Monitoring period
  Jan 1, 2020 – Mar 31, 2020
Collected
Feb 24, 2020 14:50

Sampling point
SMH Location withheld

Sample type
Routine

Lab sample
200225-003HA

Laboratory
MSDH Lab
- Monochloroacetic Acid 2450 EPA method 552.2
  
  Result
  0.009 mg/l
  
  Monitoring period
  Not recorded
- Dichloroacetic Acid 2451 EPA method 552.2
  
  Result
  0.01 mg/l
  
  Monitoring period
  Not recorded
- Trichloroacetic Acid 2452 EPA method 552.2
  
  Result
  0.012 mg/l
  
  Monitoring period
  Not recorded
- Monobromoacetic Acid 2453 EPA method 552.2
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dibromoacetic Acid 2454 EPA method 552.2
  
  Result
  0.002 mg/l
  
  Monitoring period
  Not recorded
- Total Haloacetic Acids (Haa5) 2456
  
  Result
  0.03 mg/l
  
  Monitoring period
  Jan 1, 2020 – Mar 31, 2020
Collected
Feb 24, 2020 14:50

Sampling point
SMH Location withheld

Sample type
Routine

Lab sample
200225-003TH

Laboratory
MSDH Lab
- Chloroform 2941 EPA method 524.2
  
  Result
  27.8 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  1.45 ug/l
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  13.2 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  11.6 ug/l
  
  Monitoring period
  Not recorded
- TTHM 2950
  
  Result
  54.1 ug/l
  
  Monitoring period
  Jan 1, 2020 – Mar 31, 2020
Collected
Dec 17, 2019 14:10

Sampling point
TF105

Sample type
Routine

Lab sample
191218-009NI

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2019 – Dec 31, 2019
- 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
Dec 17, 2019 14:26

Sampling point
TF102 Treatment Plant T102

Sample type
Routine

Lab sample
191218-008NI

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2019 – Dec 31, 2019
- 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
Dec 17, 2019 13:50

Sampling point
TF104 Treatment Plant T104

Sample type
Routine

Lab sample
191218-007NI

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2019 – Dec 31, 2019
- 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
Dec 2, 2019 16:02

Sampling point
SMT Location withheld

Sample type
Routine

Lab sample
191203-004TH

Laboratory
MSDH Lab
- Chloroform 2941 EPA method 524.2
  
  Result
  65.8 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  2.81 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- TTHM 2950
  
  Result
  68.6 ug/l
  
  Monitoring period
  Oct 1, 2019 – Dec 31, 2019
Collected
Dec 2, 2019 15:20

Sampling point
SMH Location withheld

Sample type
Routine

Lab sample
191203-003TH

Laboratory
MSDH Lab
- Chloroform 2941 EPA method 524.2
  
  Result
  4.45 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  1.1 ug/l
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  4.5 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  4.83 ug/l
  
  Monitoring period
  Not recorded
- TTHM 2950
  
  Result
  14.9 ug/l
  
  Monitoring period
  Oct 1, 2019 – Dec 31, 2019

Routine (10).