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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

MS0240279 , West Harrison WTR & Sewer Dist #2

13 of the 50 analytes this system has been tested for have been detected at least once, across 71 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 71 samples on record, detections range from October 29, 2019 to July 30, 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 West Harrison WTR & Sewer Dist #2, 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 45 of 45 results Oct 29, 2019 Jul 30, 2026
Lead 1030 Inorganic Chemical 35 of 45 results Oct 29, 2019 Jul 30, 2026
Barium 1010 Inorganic Chemical 6 of 6 results Mar 25, 2020 Jul 6, 2026
Fluoride 1025 Inorganic Chemical 6 of 6 results Mar 25, 2020 Jul 6, 2026
Arsenic 1005 Inorganic Chemical 4 of 6 results Mar 25, 2020 Feb 10, 2025
Xylenes, Total 2955 Organic Chemical 2 of 3 results Mar 25, 2024 Jun 23, 2026
Ethylbenzene 2992 Organic Chemical 2 of 3 results Mar 25, 2024 Jun 23, 2026
Trichloroacetic Acid 2452 Organic Chemical 1 of 1 result Jun 23, 2026 Jun 23, 2026
Chloroform 2941 Organic Chemical 1 of 1 result Jun 23, 2026 Jun 23, 2026
TTHM 2950 Organic Chemical 1 of 2 results Jun 23, 2026 Jun 23, 2026
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 1 of 2 results Mar 25, 2025 Mar 25, 2025
Sodium 1052 Inorganic Chemical 1 of 1 result Feb 16, 2021 Feb 16, 2021
Chromium 1020 Inorganic Chemical 1 of 6 results Mar 25, 2020 Mar 25, 2020

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 51–60 of 71 samples, newest first — collected June 26, 2020 to November 30, 2020. The summary above covers all 71.

21 results from the 10 samples listed here: 18 detected, 3 not detected. Across the whole record it is 106 of 259. 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 West Harrison WTR & Sewer Dist #2, every result from 51 to 60 of 71 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
Nov 30, 2020 09:00
Sampling point
TF101 Treatment Facility TF101
Sample type
Routine
Lab sample
NI-201201-031
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Nov 30, 2020 09:00, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Nov 30, 2020 09:00, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Nov 30, 2020 09:00, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Collected
Sep 23, 2020 06:00
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
200924-005PB
Laboratory
MSDH Lab
0.3457 mg/l , sample collected Sep 23, 2020 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
0.0036 mg/l , sample collected Sep 23, 2020 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
Collected
Sep 23, 2020 06:00
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
200924-004PB
Laboratory
MSDH Lab
0.0143 mg/l , sample collected Sep 23, 2020 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
0.0007 mg/l , sample collected Sep 23, 2020 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
Collected
Sep 23, 2020 06:00
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
200924-003PB
Laboratory
MSDH Lab
0.0536 mg/l , sample collected Sep 23, 2020 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
0.0009 mg/l , sample collected Sep 23, 2020 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
Collected
Sep 23, 2020 06:00
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
200924-002PB
Laboratory
MSDH Lab
0.0472 mg/l , sample collected Sep 23, 2020 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
0.001 mg/l , sample collected Sep 23, 2020 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
Collected
Sep 23, 2020 06:00
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
200924-001PB
Laboratory
MSDH Lab
0.0775 mg/l , sample collected Sep 23, 2020 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
0.0051 mg/l , sample collected Sep 23, 2020 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2020 – Dec 31, 2020
Collected
Jun 26, 2020 06:30
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
200629-012PB
Laboratory
MSDH Lab
0.2071 mg/l , sample collected Jun 26, 2020 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2020 – Jun 30, 2020
0.0054 mg/l , sample collected Jun 26, 2020 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2020 – Jun 30, 2020
Collected
Jun 26, 2020 06:30
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
200629-011PB
Laboratory
MSDH Lab
0.3406 mg/l , sample collected Jun 26, 2020 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2020 – Jun 30, 2020
0.0042 mg/l , sample collected Jun 26, 2020 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2020 – Jun 30, 2020
Collected
Jun 26, 2020 06:30
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
200629-010PB
Laboratory
MSDH Lab
0.0901 mg/l , sample collected Jun 26, 2020 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2020 – Jun 30, 2020
0.0073 mg/l , sample collected Jun 26, 2020 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2020 – Jun 30, 2020
Collected
Jun 26, 2020 06:30
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
200629-009PB
Laboratory
MSDH Lab
0.0845 mg/l , sample collected Jun 26, 2020 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2020 – Jun 30, 2020
0.0066 mg/l , sample collected Jun 26, 2020 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2020 – Jun 30, 2020

Routine (10).