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 31–40 of 203 samples, newest first — collected May 13, 2021 to July 21, 2021. The summary above covers all 203.

39 results from the 10 samples listed here: 14 detected, 25 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.

We withheld the location of 9 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 West Harrison High School, every result from 31 to 40 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 Jul 21, 2021 08:02 Sampling point LC0010 Location withheld Sample type Routine Lab sample PB-210722-131 Laboratory MSDH Lab
0.143 mg/l , sample collected Jul 21, 2021 08:02, sampling point LC0010	Copper, Free 1022 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2021 08:02, sampling point LC0010	Lead 1030 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Collected Jul 21, 2021 08:04 Sampling point LC0011 Location withheld Sample type Routine Lab sample PB-210722-130 Laboratory MSDH Lab
0.0904 mg/l , sample collected Jul 21, 2021 08:04, sampling point LC0011	Copper, Free 1022 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
0.6 ug/l , sample collected Jul 21, 2021 08:04, sampling point LC0011	Lead 1030 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Collected Jul 21, 2021 08:06 Sampling point LC0012 Location withheld Sample type Routine Lab sample PB-210722-129 Laboratory MSDH Lab
0.0908 mg/l , sample collected Jul 21, 2021 08:06, sampling point LC0012	Copper, Free 1022 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
0.7 ug/l , sample collected Jul 21, 2021 08:06, sampling point LC0012	Lead 1030 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Collected Jul 21, 2021 08:10 Sampling point LC0001 Location withheld Sample type Routine Lab sample PB-210722-128 Laboratory MSDH Lab
0.119 mg/l , sample collected Jul 21, 2021 08:10, sampling point LC0001	Copper, Free 1022 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
1.4 ug/l , sample collected Jul 21, 2021 08:10, sampling point LC0001	Lead 1030 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Collected Jul 21, 2021 08:11 Sampling point LC0002 Location withheld Sample type Routine Lab sample PB-210722-127 Laboratory MSDH Lab
0.0639 mg/l , sample collected Jul 21, 2021 08:11, sampling point LC0002	Copper, Free 1022 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2021 08:11, sampling point LC0002	Lead 1030 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Collected Jul 21, 2021 08:12 Sampling point LC0003 Location withheld Sample type Routine Lab sample PB-210722-126 Laboratory MSDH Lab
0.136 mg/l , sample collected Jul 21, 2021 08:12, sampling point LC0003	Copper, Free 1022 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2021 08:12, sampling point LC0003	Lead 1030 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Collected Jul 21, 2021 08:13 Sampling point LC0004 Location withheld Sample type Routine Lab sample PB-210722-125 Laboratory MSDH Lab
0.143 mg/l , sample collected Jul 21, 2021 08:13, sampling point LC0004	Copper, Free 1022 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2021 08:13, sampling point LC0004	Lead 1030 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Collected Jul 21, 2021 08:15 Sampling point LC0005 Location withheld Sample type Routine Lab sample PB-210722-124 Laboratory MSDH Lab
0.164 mg/l , sample collected Jul 21, 2021 08:15, sampling point LC0005	Copper, Free 1022 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 21, 2021 08:15, sampling point LC0005	Lead 1030 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Collected Jul 21, 2021 08:17 Sampling point LC0006 Location withheld Sample type Routine Lab sample PB-210722-123 Laboratory MSDH Lab
0.0819 mg/l , sample collected Jul 21, 2021 08:17, sampling point LC0006	Copper, Free 1022 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
0.5 ug/l , sample collected Jul 21, 2021 08:17, sampling point LC0006	Lead 1030 EPA method 200.8	Jan 1, 2019 – Dec 31, 2021
Collected May 13, 2021 12:45 Sampling point TF101 Sample type Routine Lab sample 210514-001VO Laboratory MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 13, 2021 12:45, sampling point TF101	1,2,4-Trichlorobenzene 2378 EPA method 524.2	Apr 1, 2021 – Jun 30, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 13, 2021 12:45, sampling point TF101	Cis-1,2-Dichloroethylene 2380 EPA method 524.2	Apr 1, 2021 – Jun 30, 2021
0.574 ug/l , sample collected May 13, 2021 12:45, sampling point TF101	Xylenes, Total 2955 EPA method 524.2	Apr 1, 2021 – Jun 30, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 13, 2021 12:45, sampling point TF101	Dichloromethane 2964 EPA method 524.2	Apr 1, 2021 – Jun 30, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 13, 2021 12:45, sampling point TF101	O-Dichlorobenzene 2968 EPA method 524.2	Apr 1, 2021 – Jun 30, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 13, 2021 12:45, sampling point TF101	P-Dichlorobenzene 2969 EPA method 524.2	Apr 1, 2021 – Jun 30, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 13, 2021 12:45, sampling point TF101	Vinyl Chloride 2976 EPA method 524.2	Apr 1, 2021 – Jun 30, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 13, 2021 12:45, sampling point TF101	1,1-Dichloroethylene 2977 EPA method 524.2	Apr 1, 2021 – Jun 30, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 13, 2021 12:45, sampling point TF101	Trans-1,2-Dichloroethylene 2979 EPA method 524.2	Apr 1, 2021 – Jun 30, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 13, 2021 12:45, sampling point TF101	1,2-Dichloroethane 2980 EPA method 524.2	Apr 1, 2021 – Jun 30, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 13, 2021 12:45, sampling point TF101	1,1,1-Trichloroethane 2981 EPA method 524.2	Apr 1, 2021 – Jun 30, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 13, 2021 12:45, sampling point TF101	Carbon Tetrachloride 2982 EPA method 524.2	Apr 1, 2021 – Jun 30, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 13, 2021 12:45, sampling point TF101	1,2-Dichloropropane 2983 EPA method 524.2	Apr 1, 2021 – Jun 30, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 13, 2021 12:45, sampling point TF101	Trichloroethylene 2984 EPA method 524.2	Apr 1, 2021 – Jun 30, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 13, 2021 12:45, sampling point TF101	1,1,2-Trichloroethane 2985 EPA method 524.2	Apr 1, 2021 – Jun 30, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 13, 2021 12:45, sampling point TF101	Tetrachloroethylene 2987 EPA method 524.2	Apr 1, 2021 – Jun 30, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 13, 2021 12:45, sampling point TF101	Chlorobenzene 2989 EPA method 524.2	Apr 1, 2021 – Jun 30, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 13, 2021 12:45, sampling point TF101	Benzene 2990 EPA method 524.2	Apr 1, 2021 – Jun 30, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 13, 2021 12:45, sampling point TF101	Toluene 2991 EPA method 524.2	Apr 1, 2021 – Jun 30, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 13, 2021 12:45, sampling point TF101	Ethylbenzene 2992 EPA method 524.2	Apr 1, 2021 – Jun 30, 2021
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected May 13, 2021 12:45, sampling point TF101	Styrene 2996 EPA method 524.2	Apr 1, 2021 – Jun 30, 2021

Collected
Jul 21, 2021 08:02

Sampling point
LC0010 Location withheld

Sample type
Routine

Lab sample
PB-210722-131

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2019 – Dec 31, 2021
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.143 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
Collected
Jul 21, 2021 08:04

Sampling point
LC0011 Location withheld

Sample type
Routine

Lab sample
PB-210722-130

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2019 – Dec 31, 2021
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0904 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.6 ug/l
Collected
Jul 21, 2021 08:06

Sampling point
LC0012 Location withheld

Sample type
Routine

Lab sample
PB-210722-129

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2019 – Dec 31, 2021
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0908 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.7 ug/l
Collected
Jul 21, 2021 08:10

Sampling point
LC0001 Location withheld

Sample type
Routine

Lab sample
PB-210722-128

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2019 – Dec 31, 2021
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.119 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  1.4 ug/l
Collected
Jul 21, 2021 08:11

Sampling point
LC0002 Location withheld

Sample type
Routine

Lab sample
PB-210722-127

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2019 – Dec 31, 2021
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0639 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
Collected
Jul 21, 2021 08:12

Sampling point
LC0003 Location withheld

Sample type
Routine

Lab sample
PB-210722-126

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2019 – Dec 31, 2021
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.136 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
Collected
Jul 21, 2021 08:13

Sampling point
LC0004 Location withheld

Sample type
Routine

Lab sample
PB-210722-125

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2019 – Dec 31, 2021
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.143 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
Collected
Jul 21, 2021 08:15

Sampling point
LC0005 Location withheld

Sample type
Routine

Lab sample
PB-210722-124

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2019 – Dec 31, 2021
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.164 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
Collected
Jul 21, 2021 08:17

Sampling point
LC0006 Location withheld

Sample type
Routine

Lab sample
PB-210722-123

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2019 – Dec 31, 2021
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0819 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.5 ug/l
Collected
May 13, 2021 12:45

Sampling point
TF101

Sample type
Routine

Lab sample
210514-001VO

Laboratory
MSDH Lab

Monitoring period
Apr 1, 2021 – Jun 30, 2021
- 1,2,4-Trichlorobenzene 2378 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Cis-1,2-Dichloroethylene 2380 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Xylenes, Total 2955 EPA method 524.2
  
  Result
  0.574 ug/l
- Dichloromethane 2964 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- O-Dichlorobenzene 2968 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- P-Dichlorobenzene 2969 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Vinyl Chloride 2976 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,1-Dichloroethylene 2977 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Trans-1,2-Dichloroethylene 2979 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,2-Dichloroethane 2980 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,1,1-Trichloroethane 2981 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Carbon Tetrachloride 2982 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,2-Dichloropropane 2983 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Trichloroethylene 2984 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,1,2-Trichloroethane 2985 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Tetrachloroethylene 2987 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Chlorobenzene 2989 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Benzene 2990 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Toluene 2991 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Ethylbenzene 2992 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Styrene 2996 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level

Routine (10).