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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.

Barium results

MS0700011 , Town of Walnut

20 samples have been analysed for Barium at Town of Walnut.

This is one analyte out of the system’s whole record. For what has ever been detected here, and when, see all chemical and radiological results; for everything the system is tested for, see the analyte list.

What counts as a non-detect is defined in the help: Less than Indicator. This system’s violations.

No date range is applied: this list draws on every sample on record. Show the last two years only.

Every Barium result

The table below lists 1–10 of 20 samples, newest first — collected May 15, 2013 to March 31, 2025.

10 Barium results from the 10 samples listed here: 10 detected, 0 not detected. Those samples also carried 98 results for other analytes, which are on the full results page.

Barium results for Town of Walnut, from 1 to 10 of 20 samples shown analysed for it, newest first. This view leaves out other analytes on the same samples. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
Mar 31, 2025 15:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
IN-250401-052
Laboratory
MSDH Lab
0.19 mg/l , sample collected Mar 31, 2025 15:00, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Mar 31, 2025 14:45
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
IN-250401-051
Laboratory
MSDH Lab
0.19 mg/l , sample collected Mar 31, 2025 14:45, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Dec 6, 2022 13:00
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
IN-221207-083
Laboratory
MSDH Lab
0.192 mg/l , sample collected Dec 6, 2022 13:00, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Dec 6, 2022 13:20
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
IN-221207-082
Laboratory
MSDH Lab
0.0508 mg/l , sample collected Dec 6, 2022 13:20, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
May 15, 2019 01:50
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
190516-013IN
Laboratory
MSDH Lab
0.1749 mg/l , sample collected May 15, 2019 01:50, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Collected
May 15, 2019 02:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
190516-012IN
Laboratory
MSDH Lab
0.178 mg/l , sample collected May 15, 2019 02:00, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Collected
Dec 13, 2016 01:45
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
161214-054IN
Laboratory
MSDH Lab
0.1716 mg/l , sample collected Dec 13, 2016 01:45, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Collected
Dec 13, 2016 01:55
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
161214-053IN
Laboratory
MSDH Lab
0.1746 mg/l , sample collected Dec 13, 2016 01:55, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2014 – Dec 31, 2016
Collected
May 15, 2013 12:20
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
130516-035IN
Laboratory
MSDH Lab
0.192 mg/l , sample collected May 15, 2013 12:20, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
May 15, 2013 12:15
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
130516-034IN
Laboratory
MSDH Lab
0.2007 mg/l , sample collected May 15, 2013 12:15, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013

Routine (10).