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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.

Chemical and radiological sample results

MS0260011 , Lebanon W/A-West

36 of the 73 analytes this system has been tested for have been detected at least once, across 370 samples on record.

The other 37 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 370 samples on record, detections range from October 13, 1993 to August 11, 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 Lebanon W/A-West, 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 105 of 145 results Oct 13, 1993 Jul 18, 2023
Lead 1030 Inorganic Chemical 71 of 145 results Oct 13, 1993 Jul 18, 2023
Barium 1010 Inorganic Chemical 30 of 30 results Sep 17, 2003 Feb 10, 2025
Chromium 1020 Inorganic Chemical 19 of 30 results Sep 17, 2003 Jan 9, 2024
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 18 of 21 results Aug 8, 2007 Aug 11, 2025
TTHM 2950 Organic Chemical 18 of 21 results Sep 6, 2007 Aug 11, 2025
Fluoride 1025 Inorganic Chemical 17 of 31 results Sep 17, 2003 Feb 10, 2025
Chloroform 2941 Organic Chemical 14 of 16 results Sep 6, 2007 Aug 11, 2025
Dichloroacetic Acid 2451 Organic Chemical 13 of 15 results Sep 22, 2008 Aug 11, 2025
Trichloroacetic Acid 2452 Organic Chemical 12 of 15 results Jul 23, 2012 Aug 11, 2025
Bromodichloromethane 2943 Organic Chemical 12 of 16 results Jul 23, 2012 Aug 11, 2025
Sodium 1052 Inorganic Chemical 8 of 8 results Mar 20, 2009 Feb 14, 2024
Dibromochloromethane 2944 Organic Chemical 7 of 16 results May 21, 2024 Aug 11, 2025
Nickel 1036 Inorganic Chemical 7 of 30 results Feb 11, 2004 Mar 11, 2015
Sulfate 1055 Inorganic Chemical 6 of 7 results Sep 17, 2003 Feb 11, 2004
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 15 results Mar 6, 2012 Oct 3, 2012
Monochloroacetic Acid 2450 Organic Chemical 3 of 15 results Jul 30, 2018 Aug 25, 2020
Xylenes, Total 2955 Organic Chemical 3 of 42 results May 22, 2008 Jul 23, 2009
Nitrite 1041 Inorganic Chemical 3 of 55 results Aug 17, 2005 May 9, 2007
Selenium 1045 Inorganic Chemical 3 of 30 results Mar 14, 2005 Mar 14, 2005
Arsenic 1005 Inorganic Chemical 2 of 30 results Mar 11, 2015 Jun 6, 2022
Monobromoacetic Acid 2453 Organic Chemical 1 of 15 results Aug 25, 2020 Aug 25, 2020
Calcium 1016 Inorganic Chemical 1 of 1 result Mar 20, 2009 Mar 20, 2009
Manganese 1032 Inorganic Chemical 1 of 1 result Mar 20, 2009 Mar 20, 2009
Potassium 1042 Inorganic Chemical 1 of 1 result Mar 20, 2009 Mar 20, 2009
Residue, Total, Filterable 1057 Water Quality 1 of 1 result Mar 20, 2009 Mar 20, 2009
Alkalinity, Caco3 Stability 1067 Water Quality 1 of 1 result Mar 20, 2009 Mar 20, 2009
Carbon Dioxide 1901 Water Quality 1 of 1 result Mar 20, 2009 Mar 20, 2009
Color 1905 Water Quality 1 of 1 result Mar 20, 2009 Mar 20, 2009
Hardness, Total (As Caco3) 1915 Water Quality 1 of 1 result Mar 20, 2009 Mar 20, 2009
Alkalinity, Total 1927 Water Quality 1 of 1 result Mar 20, 2009 Mar 20, 2009
Iron, Field Result FEFD Inorganic Chemical 1 of 1 result Mar 20, 2009 Mar 20, 2009
Calculated Sodium NACA Water Quality 1 of 1 result Mar 20, 2009 Mar 20, 2009
PH, Field Result PHFD Water Quality 1 of 1 result Mar 20, 2009 Mar 20, 2009
Temperature, Field Result TEMP Water Quality 1 of 1 result Mar 20, 2009 Mar 20, 2009
Cyanide 1024 Inorganic Chemical 1 of 31 results Mar 14, 2005 Mar 14, 2005

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 31–40 of 370 samples, newest first — collected June 6, 2022 to July 18, 2023. The summary above covers all 370.

29 results from the 10 samples listed here: 12 detected, 17 not detected. Across the whole record it is 391 of 1,985. 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 4 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 Lebanon W/A-West, every result from 31 to 40 of 370 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
Jul 18, 2023 06:45
Sampling point
LC0019 Location withheld
Sample type
Routine
Lab sample
PB-230719-080
Laboratory
MSDH Lab
0.0779 mg/l , sample collected Jul 18, 2023 06:45, sampling point LC0019 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
1 ug/l , sample collected Jul 18, 2023 06:45, sampling point LC0019 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 18, 2023 05:40
Sampling point
LC0017 Location withheld
Sample type
Routine
Lab sample
PB-230719-079
Laboratory
MSDH Lab
0.396 mg/l , sample collected Jul 18, 2023 05:40, sampling point LC0017 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 18, 2023 05:40, sampling point LC0017 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 18, 2023 06:00
Sampling point
LC0014 Location withheld
Sample type
Routine
Lab sample
PB-230719-078
Laboratory
MSDH Lab
0.0148 mg/l , sample collected Jul 18, 2023 06:00, sampling point LC0014 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 18, 2023 06:00, sampling point LC0014 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 18, 2023 06:00
Sampling point
LC0002 Location withheld
Sample type
Routine
Lab sample
PB-230719-077
Laboratory
MSDH Lab
0.0364 mg/l , sample collected Jul 18, 2023 06:00, sampling point LC0002 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 18, 2023 06:00, sampling point LC0002 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jul 18, 2023 06:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
PB-230719-076
Laboratory
MSDH Lab
0.0045 mg/l , sample collected Jul 18, 2023 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 18, 2023 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2021 – Dec 31, 2023
Collected
Jun 12, 2023 14:46
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-230613-004
Laboratory
MSDH Lab
21.8 ug/l , sample collected Jun 12, 2023 14:46, sampling point MRT000 TTHM 2950 EPA method 524.2 Not recorded
Collected
Jun 12, 2023 14:46
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-230613-004
Laboratory
MSDH Lab
19.1 ug/l , sample collected Jun 12, 2023 14:46, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
Collected
Jan 31, 2023 14:30
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-230201-035
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 31, 2023 14:30, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 31, 2023 14:30, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 31, 2023 14:30, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Jan 31, 2023 14:00
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
NI-230201-034
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 31, 2023 14:00, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 31, 2023 14:00, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 31, 2023 14:00, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Dec 31, 2023
Collected
Jun 6, 2022 10:55
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
IN-220607-006
Laboratory
MSDH Lab
0.0007 mg/l , sample collected Jun 6, 2022 10:55, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0074 mg/l , sample collected Jun 6, 2022 10:55, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 6, 2022 10:55, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0009 mg/l , sample collected Jun 6, 2022 10:55, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.28 mg/l , sample collected Jun 6, 2022 10:55, sampling point TF102 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 6, 2022 10:55, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 6, 2022 10:55, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Jun 6, 2022 10:55, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 6, 2022 10:55, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 6, 2022 10:55, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 6, 2022 10:55, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022

Routine (10).