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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

MS0240263 , West Harrison High School

32 of the 65 analytes this system has been tested for have been detected at least once, across 203 samples on record.

The other 33 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 203 samples on record, detections range from September 8, 2009 to April 23, 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 West Harrison High School, 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 104 of 104 results Oct 29, 2009 Aug 14, 2024
Lead 1030 Inorganic Chemical 42 of 104 results Oct 29, 2009 Jul 21, 2021
Xylenes, Total 2955 Organic Chemical 23 of 48 results Oct 28, 2009 May 13, 2021
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 9 of 9 results Sep 8, 2009 Apr 23, 2025
TTHM 2950 Organic Chemical 9 of 9 results Sep 8, 2009 Apr 23, 2025
Fluoride 1025 Inorganic Chemical 8 of 8 results Apr 19, 2011 Feb 15, 2024
Barium 1010 Inorganic Chemical 7 of 7 results Apr 19, 2011 Feb 15, 2024
Ethylbenzene 2992 Organic Chemical 7 of 48 results Oct 28, 2009 Jul 24, 2017
Dichloroacetic Acid 2451 Organic Chemical 5 of 5 results Sep 8, 2009 Jul 24, 2017
Chloroform 2941 Organic Chemical 5 of 5 results Sep 8, 2009 Jul 24, 2017
Bromodichloromethane 2943 Organic Chemical 5 of 5 results Sep 8, 2009 Jul 24, 2017
Dibromochloromethane 2944 Organic Chemical 5 of 5 results Sep 8, 2009 Jul 24, 2017
Trichloroacetic Acid 2452 Organic Chemical 4 of 5 results Sep 8, 2009 Jul 24, 2017
Chromium 1020 Inorganic Chemical 3 of 7 results Apr 19, 2011 Mar 25, 2020
Sodium 1052 Inorganic Chemical 2 of 2 results Aug 26, 2015 Feb 24, 2021
Monochloroacetic Acid 2450 Organic Chemical 1 of 5 results Jul 24, 2017 Jul 24, 2017
Calcium 1016 Inorganic Chemical 1 of 1 result Aug 26, 2015 Aug 26, 2015
Chloride 1017 Inorganic Chemical 1 of 1 result Aug 26, 2015 Aug 26, 2015
Magnesium 1031 Inorganic Chemical 1 of 1 result Aug 26, 2015 Aug 26, 2015
Manganese 1032 Inorganic Chemical 1 of 1 result Aug 26, 2015 Aug 26, 2015
Potassium 1042 Inorganic Chemical 1 of 1 result Aug 26, 2015 Aug 26, 2015
Sulfate 1055 Inorganic Chemical 1 of 1 result Aug 26, 2015 Aug 26, 2015
Residue, Total, Filterable 1057 Water Quality 1 of 1 result Aug 26, 2015 Aug 26, 2015
Alkalinity, Caco3 Stability 1067 Water Quality 1 of 1 result Aug 26, 2015 Aug 26, 2015
Color 1905 Water Quality 1 of 1 result Aug 26, 2015 Aug 26, 2015
Hardness, Total (As Caco3) 1915 Water Quality 1 of 1 result Aug 26, 2015 Aug 26, 2015
Alkalinity, Total 1927 Water Quality 1 of 1 result Aug 26, 2015 Aug 26, 2015
Calculated Sodium NACA Water Quality 1 of 1 result Aug 26, 2015 Aug 26, 2015
PH, Field Result PHFD Water Quality 1 of 1 result Aug 26, 2015 Aug 26, 2015
Nickel 1036 Inorganic Chemical 1 of 7 results Dec 1, 2014 Dec 1, 2014
Monobromoacetic Acid 2453 Organic Chemical 1 of 5 results Aug 10, 2010 Aug 10, 2010
Bromoform 2942 Organic Chemical 1 of 5 results Sep 8, 2009 Sep 8, 2009

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 181–190 of 203 samples, newest first — collected October 29, 2009 to October 29, 2009. The summary above covers all 203.

20 results from the 10 samples listed here: 17 detected, 3 not detected. Across the whole record it is 255 of 1,431. 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 High School, every result from 181 to 190 of 203 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
Oct 29, 2009
Sampling point
DS000
Sample type
Routine
Lab sample
091030-043PB
Laboratory
MSDH Lab
0.2206 mg/l , sample collected Oct 29, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 29, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
Collected
Oct 29, 2009
Sampling point
DS000
Sample type
Routine
Lab sample
091030-042PB
Laboratory
MSDH Lab
0.2307 mg/l , sample collected Oct 29, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
0.0006 mg/l , sample collected Oct 29, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
Collected
Oct 29, 2009
Sampling point
DS000
Sample type
Routine
Lab sample
091030-041PB
Laboratory
MSDH Lab
0.2088 mg/l , sample collected Oct 29, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 29, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
Collected
Oct 29, 2009
Sampling point
DS000
Sample type
Routine
Lab sample
091030-020PB
Laboratory
MSDH Lab
0.3232 mg/l , sample collected Oct 29, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
0.0024 mg/l , sample collected Oct 29, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
Collected
Oct 29, 2009
Sampling point
DS000
Sample type
Routine
Lab sample
091030-019PB
Laboratory
MSDH Lab
0.333 mg/l , sample collected Oct 29, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
0.0066 mg/l , sample collected Oct 29, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
Collected
Oct 29, 2009
Sampling point
DS000
Sample type
Routine
Lab sample
091030-018PB
Laboratory
MSDH Lab
0.1795 mg/l , sample collected Oct 29, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
0.001 mg/l , sample collected Oct 29, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
Collected
Oct 29, 2009
Sampling point
DS000
Sample type
Routine
Lab sample
091030-017PB
Laboratory
MSDH Lab
0.1105 mg/l , sample collected Oct 29, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
0.0048 mg/l , sample collected Oct 29, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
Collected
Oct 29, 2009
Sampling point
DS000
Sample type
Routine
Lab sample
091030-016PB
Laboratory
MSDH Lab
0.2071 mg/l , sample collected Oct 29, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
0.0032 mg/l , sample collected Oct 29, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
Collected
Oct 29, 2009
Sampling point
DS000
Sample type
Routine
Lab sample
091030-013PB
Laboratory
MSDH Lab
0.2113 mg/l , sample collected Oct 29, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 29, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
Collected
Oct 29, 2009
Sampling point
DS000
Sample type
Routine
Lab sample
091030-012PB
Laboratory
MSDH Lab
0.1631 mg/l , sample collected Oct 29, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
0.0007 mg/l , sample collected Oct 29, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009

Routine (10).