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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 21–30 of 71 samples, newest first — collected June 14, 2023 to August 20, 2024. The summary above covers all 71.

40 results from the 10 samples listed here: 17 detected, 23 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 21 to 30 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
Aug 20, 2024 06:00
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
PB-240821-109
Laboratory
MSDH Lab
0.0791 mg/l , sample collected Aug 20, 2024 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
6 ug/l , sample collected Aug 20, 2024 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Collected
Aug 20, 2024 06:00
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
PB-240821-110
Laboratory
MSDH Lab
0.105 mg/l , sample collected Aug 20, 2024 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 20, 2024 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Collected
Aug 20, 2024 06:00
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
PB-240821-108
Laboratory
MSDH Lab
0.144 mg/l , sample collected Aug 20, 2024 06:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
4.3 ug/l , sample collected Aug 20, 2024 06:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2024 – Dec 31, 2024
Collected
Mar 25, 2024 09:00
Sampling point
TF101 Treatment Facility TF101
Sample type
Routine
Lab sample
VO-240326-009
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 25, 2024 09:00, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 25, 2024 09:00, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024
15.85 ug/l , sample collected Mar 25, 2024 09:00, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 25, 2024 09:00, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 25, 2024 09:00, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 25, 2024 09:00, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 25, 2024 09:00, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 25, 2024 09:00, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 25, 2024 09:00, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 25, 2024 09:00, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 25, 2024 09:00, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 25, 2024 09:00, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 25, 2024 09:00, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 25, 2024 09:00, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 25, 2024 09:00, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 25, 2024 09:00, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 25, 2024 09:00, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 25, 2024 09:00, sampling point TF101 Benzene 2990 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 25, 2024 09:00, sampling point TF101 Toluene 2991 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024
1.65 ug/l , sample collected Mar 25, 2024 09:00, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 25, 2024 09:00, sampling point TF101 Styrene 2996 EPA method 524.2 Jan 1, 2022 – Dec 31, 2024
Collected
Feb 5, 2024 08:40
Sampling point
TF101 Treatment Facility TF101
Sample type
Routine
Lab sample
NI-240206-014
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 08:40, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 08:40, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 5, 2024 08:40, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2024 – Dec 31, 2024
Collected
Jun 14, 2023 06:30
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
PB-230615-091
Laboratory
MSDH Lab
0.0673 mg/l , sample collected Jun 14, 2023 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
5 ug/l , sample collected Jun 14, 2023 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Collected
Jun 14, 2023 06:30
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
PB-230615-090
Laboratory
MSDH Lab
0.261 mg/l , sample collected Jun 14, 2023 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
2.8 ug/l , sample collected Jun 14, 2023 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Collected
Jun 14, 2023 06:30
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
PB-230615-094
Laboratory
MSDH Lab
0.0904 mg/l , sample collected Jun 14, 2023 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
5.1 ug/l , sample collected Jun 14, 2023 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Collected
Jun 14, 2023 06:30
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
PB-230615-093
Laboratory
MSDH Lab
0.156 mg/l , sample collected Jun 14, 2023 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
3.4 ug/l , sample collected Jun 14, 2023 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
Collected
Jun 14, 2023 06:30
Sampling point
DS000 Distribution DS000
Sample type
Routine
Lab sample
PB-230615-092
Laboratory
MSDH Lab
0.17 mg/l , sample collected Jun 14, 2023 06:30, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023
1.6 ug/l , sample collected Jun 14, 2023 06:30, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2023 – Dec 31, 2023

Routine (10).