Chemical and radiological sample results

MS0180001 , Barrontown W/A

46 of the 75 analytes this system has been tested for have been detected at least once, across 819 samples on record.

The other 29 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 819 samples on record, detections range from December 21, 1992 to April 28, 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 Barrontown 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
Copper, Free 1022	Inorganic Chemical	274 of 323 results	Dec 21, 1992	Jul 2, 2024
Lead 1030	Inorganic Chemical	159 of 323 results	Dec 21, 1992	Jun 26, 2024
Fluoride 1025	Inorganic Chemical	63 of 63 results	May 14, 2002	Feb 5, 2025
Barium 1010	Inorganic Chemical	62 of 62 results	May 14, 2002	Feb 5, 2025
Chromium 1020	Inorganic Chemical	37 of 62 results	May 14, 2002	Feb 5, 2025
Gross Alpha, Incl. Radon & U 4002	Radionuclide	21 of 31 results	Mar 7, 2012	Mar 16, 2016
TTHM 2950	Organic Chemical	19 of 21 results	May 19, 2004	Apr 28, 2026
Nickel 1036	Inorganic Chemical	19 of 62 results	Feb 28, 2005	Feb 5, 2025
Sodium 1052	Inorganic Chemical	19 of 19 results	Jun 9, 2008	Jan 30, 2024
Combined Radium (-226 & -228) 4010	Radionuclide	18 of 40 results	Sep 29, 2009	Mar 16, 2016
Radium-226 4020	Radionuclide	17 of 40 results	Sep 29, 2009	Mar 16, 2016
Chloroform 2941	Organic Chemical	14 of 16 results	Sep 18, 2008	Apr 28, 2026
Total Haloacetic Acids (Haa5) 2456	Organic Chemical	14 of 18 results	Sep 18, 2008	Dec 16, 2025
Bromodichloromethane 2943	Organic Chemical	13 of 16 results	Sep 18, 2008	Apr 28, 2026
Dibromochloromethane 2944	Organic Chemical	12 of 16 results	Sep 18, 2008	Apr 28, 2026
Trichloroacetic Acid 2452	Organic Chemical	11 of 14 results	Sep 18, 2008	Dec 16, 2025
Dichloroacetic Acid 2451	Organic Chemical	10 of 14 results	Jul 12, 2012	Dec 16, 2025
Sulfate 1055	Inorganic Chemical	10 of 10 results	May 14, 2002	Jun 9, 2008
Xylenes, Total 2955	Organic Chemical	8 of 121 results	Jul 24, 2012	Mar 6, 2024
Gross Alpha, Excl. Radon & U 4000	Radionuclide	8 of 9 results	Sep 29, 2009	Mar 4, 2010
Gross Alpha Particle Activity 4109	Radionuclide	8 of 9 results	Sep 29, 2009	Mar 4, 2010
Cyanide 1024	Inorganic Chemical	6 of 56 results	Feb 28, 2005	Jun 10, 2025
Gross Beta Particle Activity 4100	Radionuclide	6 of 6 results	Sep 29, 2009	Mar 4, 2010
Selenium 1045	Inorganic Chemical	6 of 62 results	Jan 25, 2006	Nov 5, 2008
Radium-228 4030	Radionuclide	5 of 40 results	Sep 29, 2009	Mar 4, 2010
Cadmium 1015	Inorganic Chemical	5 of 62 results	Jan 25, 2006	Jan 25, 2006
Nitrite 1041	Inorganic Chemical	4 of 128 results	Jan 10, 2022	Jan 10, 2022
Monochloroacetic Acid 2450	Organic Chemical	3 of 14 results	Sep 2, 2014	May 6, 2020
Carbon Tetrachloride 2982	Organic Chemical	1 of 121 results	Feb 5, 2025	Feb 5, 2025
Dibromoacetic Acid 2454	Organic Chemical	1 of 14 results	Nov 16, 2020	Nov 16, 2020
Toluene 2991	Organic Chemical	1 of 121 results	Jul 26, 2017	Jul 26, 2017
Ethylbenzene 2992	Organic Chemical	1 of 121 results	Nov 15, 2016	Nov 15, 2016
Monobromoacetic Acid 2453	Organic Chemical	1 of 14 results	Jul 12, 2012	Jul 12, 2012
Calcium 1016	Inorganic Chemical	1 of 1 result	Jun 9, 2008	Jun 9, 2008
Iron 1028	Inorganic Chemical	1 of 1 result	Jun 9, 2008	Jun 9, 2008
Magnesium 1031	Inorganic Chemical	1 of 1 result	Jun 9, 2008	Jun 9, 2008
Manganese 1032	Inorganic Chemical	1 of 1 result	Jun 9, 2008	Jun 9, 2008
Residue, Total, Filterable 1057	Water Quality	1 of 1 result	Jun 9, 2008	Jun 9, 2008
Alkalinity, Caco3 Stability 1067	Water Quality	1 of 1 result	Jun 9, 2008	Jun 9, 2008
Carbon Dioxide 1901	Water Quality	1 of 1 result	Jun 9, 2008	Jun 9, 2008
Hardness, Total (As Caco3) 1915	Water Quality	1 of 1 result	Jun 9, 2008	Jun 9, 2008
PH 1925	Water Quality	1 of 1 result	Jun 9, 2008	Jun 9, 2008
Alkalinity, Total 1927	Water Quality	1 of 1 result	Jun 9, 2008	Jun 9, 2008
Iron, Field Result FEFD	Inorganic Chemical	1 of 1 result	Jun 9, 2008	Jun 9, 2008
Calculated Sodium NACA	Water Quality	1 of 1 result	Jun 9, 2008	Jun 9, 2008
PH, Field Result PHFD	Water Quality	1 of 1 result	Jun 9, 2008	Jun 9, 2008

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 111–120 of 819 samples, newest first — collected June 29, 2021 to August 9, 2021. The summary above covers all 819.

39 results from the 10 samples listed here: 12 detected, 27 not detected. Across the whole record it is 869 of 4,753. 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 8 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 Barrontown W/A, every result from 111 to 120 of 819 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 Aug 9, 2021 13:00 Sampling point TF106 Sample type Routine Lab sample VO-210810-001 Laboratory MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2021 13:00, sampling point TF106	1,2,4-Trichlorobenzene 2378 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2021 13:00, sampling point TF106	Cis-1,2-Dichloroethylene 2380 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2021 13:00, sampling point TF106	Xylenes, Total 2955 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2021 13:00, sampling point TF106	Dichloromethane 2964 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2021 13:00, sampling point TF106	O-Dichlorobenzene 2968 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2021 13:00, sampling point TF106	P-Dichlorobenzene 2969 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2021 13:00, sampling point TF106	Vinyl Chloride 2976 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2021 13:00, sampling point TF106	1,1-Dichloroethylene 2977 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2021 13:00, sampling point TF106	Trans-1,2-Dichloroethylene 2979 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2021 13:00, sampling point TF106	1,2-Dichloroethane 2980 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2021 13:00, sampling point TF106	1,1,1-Trichloroethane 2981 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2021 13:00, sampling point TF106	Carbon Tetrachloride 2982 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2021 13:00, sampling point TF106	1,2-Dichloropropane 2983 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2021 13:00, sampling point TF106	Trichloroethylene 2984 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2021 13:00, sampling point TF106	1,1,2-Trichloroethane 2985 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2021 13:00, sampling point TF106	Tetrachloroethylene 2987 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2021 13:00, sampling point TF106	Chlorobenzene 2989 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2021 13:00, sampling point TF106	Benzene 2990 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2021 13:00, sampling point TF106	Toluene 2991 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2021 13:00, sampling point TF106	Ethylbenzene 2992 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 9, 2021 13:00, sampling point TF106	Styrene 2996 EPA method 524.2	Jan 1, 2016 – Dec 31, 2021
Collected Jun 30, 2021 06:45 Sampling point DS000 Distribution Sample type Routine Lab sample PB-210701-041 Laboratory MSDH Lab
0.0915 mg/l , sample collected Jun 30, 2021 06:45, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 30, 2021 06:45, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Collected Jun 30, 2021 06:30 Sampling point LC0010 Location withheld Sample type Routine Lab sample PB-210701-040 Laboratory MSDH Lab
0.179 mg/l , sample collected Jun 30, 2021 06:30, sampling point LC0010	Copper, Free 1022 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 30, 2021 06:30, sampling point LC0010	Lead 1030 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Collected Jun 29, 2021 07:06 Sampling point LC0040 Location withheld Sample type Routine Lab sample PB-210701-045 Laboratory MSDH Lab
0.0093 mg/l , sample collected Jun 29, 2021 07:06, sampling point LC0040	Copper, Free 1022 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
1.7 ug/l , sample collected Jun 29, 2021 07:06, sampling point LC0040	Lead 1030 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Collected Jun 29, 2021 07:00 Sampling point LC0015 Location withheld Sample type Routine Lab sample PB-210701-044 Laboratory MSDH Lab
0.0062 mg/l , sample collected Jun 29, 2021 07:00, sampling point LC0015	Copper, Free 1022 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
0.6 ug/l , sample collected Jun 29, 2021 07:00, sampling point LC0015	Lead 1030 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Collected Jun 29, 2021 07:45 Sampling point LC0006 Location withheld Sample type Routine Lab sample PB-210701-043 Laboratory MSDH Lab
0.0903 mg/l , sample collected Jun 29, 2021 07:45, sampling point LC0006	Copper, Free 1022 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2021 07:45, sampling point LC0006	Lead 1030 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Collected Jun 29, 2021 05:00 Sampling point LC0041 Location withheld Sample type Routine Lab sample PB-210701-042 Laboratory MSDH Lab
0.136 mg/l , sample collected Jun 29, 2021 05:00, sampling point LC0041	Copper, Free 1022 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2021 05:00, sampling point LC0041	Lead 1030 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Collected Jun 29, 2021 06:20 Sampling point LC0011 Location withheld Sample type Routine Lab sample PB-210701-039 Laboratory MSDH Lab
0.261 mg/l , sample collected Jun 29, 2021 06:20, sampling point LC0011	Copper, Free 1022 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2021 06:20, sampling point LC0011	Lead 1030 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Collected Jun 29, 2021 06:00 Sampling point LC0021 Location withheld Sample type Routine Lab sample PB-210701-038 Laboratory MSDH Lab
0.269 mg/l , sample collected Jun 29, 2021 06:00, sampling point LC0021	Copper, Free 1022 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 29, 2021 06:00, sampling point LC0021	Lead 1030 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Collected Jun 29, 2021 05:04 Sampling point LC0024 Location withheld Sample type Routine Lab sample PB-210701-037 Laboratory MSDH Lab
0.1 mg/l , sample collected Jun 29, 2021 05:04, sampling point LC0024	Copper, Free 1022 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
0.8 ug/l , sample collected Jun 29, 2021 05:04, sampling point LC0024	Lead 1030 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021

Collected
Aug 9, 2021 13:00

Sampling point
TF106

Sample type
Routine

Lab sample
VO-210810-001

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2016 – Dec 31, 2021
- 1,2,4-Trichlorobenzene 2378 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Cis-1,2-Dichloroethylene 2380 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Xylenes, Total 2955 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Dichloromethane 2964 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- O-Dichlorobenzene 2968 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- P-Dichlorobenzene 2969 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Vinyl Chloride 2976 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,1-Dichloroethylene 2977 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Trans-1,2-Dichloroethylene 2979 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,2-Dichloroethane 2980 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,1,1-Trichloroethane 2981 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Carbon Tetrachloride 2982 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,2-Dichloropropane 2983 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Trichloroethylene 2984 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,1,2-Trichloroethane 2985 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Tetrachloroethylene 2987 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Chlorobenzene 2989 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Benzene 2990 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Toluene 2991 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Ethylbenzene 2992 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Styrene 2996 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
Collected
Jun 30, 2021 06:45

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
PB-210701-041

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2019 – Dec 31, 2021
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0915 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
Collected
Jun 30, 2021 06:30

Sampling point
LC0010 Location withheld

Sample type
Routine

Lab sample
PB-210701-040

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2019 – Dec 31, 2021
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.179 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
Collected
Jun 29, 2021 07:06

Sampling point
LC0040 Location withheld

Sample type
Routine

Lab sample
PB-210701-045

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2019 – Dec 31, 2021
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0093 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  1.7 ug/l
Collected
Jun 29, 2021 07:00

Sampling point
LC0015 Location withheld

Sample type
Routine

Lab sample
PB-210701-044

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2019 – Dec 31, 2021
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0062 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.6 ug/l
Collected
Jun 29, 2021 07:45

Sampling point
LC0006 Location withheld

Sample type
Routine

Lab sample
PB-210701-043

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2019 – Dec 31, 2021
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0903 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
Collected
Jun 29, 2021 05:00

Sampling point
LC0041 Location withheld

Sample type
Routine

Lab sample
PB-210701-042

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2019 – Dec 31, 2021
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.136 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
Collected
Jun 29, 2021 06:20

Sampling point
LC0011 Location withheld

Sample type
Routine

Lab sample
PB-210701-039

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2019 – Dec 31, 2021
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.261 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
Collected
Jun 29, 2021 06:00

Sampling point
LC0021 Location withheld

Sample type
Routine

Lab sample
PB-210701-038

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2019 – Dec 31, 2021
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.269 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
Collected
Jun 29, 2021 05:04

Sampling point
LC0024 Location withheld

Sample type
Routine

Lab sample
PB-210701-037

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2019 – Dec 31, 2021
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.1 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.8 ug/l

Routine (10).