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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

MS0260018 , West Hill Water Association

9 of the 13 analytes this system has been tested for have been detected at least once, across 86 samples on record.

The other 4 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 86 samples on record, detections range from November 1, 1993 to February 26, 2024. 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 Hill Water Association, 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 64 of 70 results Nov 1, 1993 Jul 12, 2023
Lead 1030 Inorganic Chemical 26 of 70 results Nov 1, 1993 Jul 12, 2023
TTHM 2950 Organic Chemical 6 of 8 results Jun 7, 2004 Feb 26, 2024
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 5 of 8 results Jun 4, 2007 Feb 26, 2024
Dichloroacetic Acid 2451 Organic Chemical 3 of 5 results Jun 23, 2008 Aug 22, 2017
Chloroform 2941 Organic Chemical 3 of 6 results Jun 23, 2008 Aug 22, 2017
Monobromoacetic Acid 2453 Organic Chemical 2 of 5 results Jul 1, 2009 Jun 29, 2011
Bromodichloromethane 2943 Organic Chemical 1 of 6 results Aug 22, 2017 Aug 22, 2017
Monochloroacetic Acid 2450 Organic Chemical 1 of 5 results Jun 29, 2011 Jun 29, 2011

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 86 samples, newest first — collected June 25, 1996 to June 7, 2004. The summary above covers all 86.

19 results from the 10 samples listed here: 10 detected, 9 not detected. Across the whole record it is 111 of 205. 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 Hill Water Association, every result from 51 to 60 of 86 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
Jun 7, 2004
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
040608-023TH
Laboratory
MSDH Lab
6.76 ug/l , sample collected Jun 7, 2004, sampling point MRT000 TTHM 2950 EPA method 524.2 Not recorded
Collected
Aug 22, 2000
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
000824-094L
Laboratory
MSDH Lab
0.038 mg/l , sample collected Aug 22, 2000, sampling point DS000 Copper, Free 1022 Not recorded
0.001 mg/l , sample collected Aug 22, 2000, sampling point DS000 Lead 1030 Not recorded
Collected
Aug 22, 2000
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
000824-088L
Laboratory
MSDH Lab
0.04 mg/l , sample collected Aug 22, 2000, sampling point DS000 Copper, Free 1022 Not recorded
Not detected below 0.001 mg/l Method Detection Limit , sample collected Aug 22, 2000, sampling point DS000 Lead 1030 Not recorded
Collected
Aug 22, 2000
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
000824-086L
Laboratory
MSDH Lab
0.023 mg/l , sample collected Aug 22, 2000, sampling point DS000 Copper, Free 1022 Not recorded
Not detected below 0.001 mg/l Method Detection Limit , sample collected Aug 22, 2000, sampling point DS000 Lead 1030 Not recorded
Collected
Aug 22, 2000
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
000824-085L
Laboratory
MSDH Lab
0.029 mg/l , sample collected Aug 22, 2000, sampling point DS000 Copper, Free 1022 Not recorded
0.001 mg/l , sample collected Aug 22, 2000, sampling point DS000 Lead 1030 Not recorded
Collected
Aug 21, 2000
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
000824-087L
Laboratory
MSDH Lab
0.011 mg/l , sample collected Aug 21, 2000, sampling point DS000 Copper, Free 1022 Not recorded
Not detected below 0.001 mg/l Method Detection Limit , sample collected Aug 21, 2000, sampling point DS000 Lead 1030 Not recorded
Collected
Jun 25, 1996
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
960626-222L
Laboratory
MSDH Lab
Not detected below 0.02 mg/l Method Detection Limit , sample collected Jun 25, 1996, sampling point DS000 Copper, Free 1022 Not recorded
0.003 mg/l , sample collected Jun 25, 1996, sampling point DS000 Lead 1030 Not recorded
Collected
Jun 25, 1996
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
960626-218L
Laboratory
MSDH Lab
0.065 mg/l , sample collected Jun 25, 1996, sampling point DS000 Copper, Free 1022 Not recorded
Not detected below 0.001 mg/l Method Detection Limit , sample collected Jun 25, 1996, sampling point DS000 Lead 1030 Not recorded
Collected
Jun 25, 1996
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
960626-213L
Laboratory
MSDH Lab
Not detected below 0.02 mg/l Method Detection Limit , sample collected Jun 25, 1996, sampling point DS000 Copper, Free 1022 Not recorded
Not detected below 0.001 mg/l Method Detection Limit , sample collected Jun 25, 1996, sampling point DS000 Lead 1030 Not recorded
Collected
Jun 25, 1996
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
960626-212L
Laboratory
MSDH Lab
Not detected below 0.02 mg/l Method Detection Limit , sample collected Jun 25, 1996, sampling point DS000 Copper, Free 1022 Not recorded
Not detected below 0.001 mg/l Method Detection Limit , sample collected Jun 25, 1996, sampling point DS000 Lead 1030 Not recorded

Routine (10).