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.
| 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 11–20 of 86 samples, newest first — collected July 21, 2014 to June 16, 2020. The summary above covers all 86.
30 results from the 10 samples listed here: 12 detected, 18 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.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| 0.017 mg/l , sample collected Jun 16, 2020 09:30, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 16, 2020 09:30, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| 0.0092 mg/l , sample collected Jun 16, 2020 09:40, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 16, 2020 09:40, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2018 – Dec 31, 2020 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 22, 2017 14:25, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.001 mg/l , sample collected Aug 22, 2017 14:25, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 22, 2017 14:25, sampling point MRT000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 22, 2017 14:25, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 22, 2017 14:25, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.001 mg/l , sample collected Aug 22, 2017 14:25, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2016 – Dec 31, 2018 |
|
||
| 2.46 ug/l , sample collected Aug 22, 2017 14:15, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 22, 2017 14:15, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 1.19 ug/l , sample collected Aug 22, 2017 14:15, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 22, 2017 14:15, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 3.65 ug/l , sample collected Aug 22, 2017 14:15, sampling point MRT000 | TTHM 2950 | Jan 1, 2016 – Dec 31, 2018 |
|
||
| 0.0143 mg/l , sample collected Jul 20, 2017 07:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 20, 2017 07:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
|
||
| 0.0303 mg/l , sample collected Jul 20, 2017 05:05, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 20, 2017 05:05, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
|
||
| 0.0952 mg/l , sample collected Jul 20, 2017 06:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 20, 2017 06:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
|
||
| 0.0577 mg/l , sample collected Jul 20, 2017 08:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 20, 2017 08:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
|
||
| 0.0433 mg/l , sample collected Jul 20, 2017 05:00, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 20, 2017 05:00, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2015 – Dec 31, 2017 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:30, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:30, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:30, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:30, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| Not detected below 4 ug/l Minimum Reporting Level , sample collected Jul 21, 2014 02:30, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2013 – Dec 31, 2015 |
-
- Collected
- Jun 16, 2020 09:30
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200618-033PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.017 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jun 16, 2020 09:40
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 200618-032PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2018 – Dec 31, 2020
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0092 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Aug 22, 2017 14:25
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 170823-017HA
- Laboratory
- MSDH Lab
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- Not detected below 0.002 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 0.001 mg/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- 0.001 mg/l
- Monitoring period
- Jan 1, 2016 – Dec 31, 2018
-
- Collected
- Aug 22, 2017 14:15
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 170823-023TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 2.46 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 1.19 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950
- Result
- 3.65 ug/l
- Monitoring period
- Jan 1, 2016 – Dec 31, 2018
-
- Collected
- Jul 20, 2017 07:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 170721-118PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0143 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 20, 2017 05:05
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 170721-117PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0303 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 20, 2017 06:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 170721-116PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0952 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 20, 2017 08:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 170721-115PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0577 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 20, 2017 05:00
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 170721-114PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2015 – Dec 31, 2017
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0433 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 21, 2014 02:30
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 140722-022TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- Not detected below 4 ug/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2013 – Dec 31, 2015
Routine (10).