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
MS0110004 , Pattison W/A-West
32 of the 64 analytes this system has been tested for have been detected at least once, across 277 samples on record.
The other 32 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 277 samples on record, detections range from November 23, 1993 to March 12, 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.
| Analyte | Kind | Detected in | First detected | Last detected |
|---|---|---|---|---|
| Copper, Free 1022 | Inorganic Chemical | 155 of 173 results | Nov 23, 1993 | Jul 12, 2023 |
| Lead 1030 | Inorganic Chemical | 106 of 173 results | Nov 23, 1993 | Jul 12, 2023 |
| Barium 1010 | Inorganic Chemical | 16 of 16 results | Mar 26, 2002 | Jan 29, 2025 |
| Fluoride 1025 | Inorganic Chemical | 13 of 19 results | Mar 26, 2002 | Oct 11, 2021 |
| Nickel 1036 | Inorganic Chemical | 12 of 16 results | Mar 26, 2002 | Jan 29, 2025 |
| Chromium 1020 | Inorganic Chemical | 9 of 16 results | Jan 28, 2004 | Jan 29, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 8 of 9 results | Jul 11, 2007 | Mar 12, 2025 |
| Sulfate 1055 | Inorganic Chemical | 7 of 7 results | Mar 26, 2002 | Oct 11, 2021 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 7 of 7 results | Dec 5, 2011 | Jul 12, 2012 |
| Combined Radium (-226 & -228) 4010 | Radionuclide | 7 of 9 results | Dec 5, 2011 | Jul 12, 2012 |
| Radium-228 4030 | Radionuclide | 7 of 9 results | Dec 5, 2011 | Jul 12, 2012 |
| Sodium 1052 | Inorganic Chemical | 6 of 6 results | Sep 18, 2019 | Oct 28, 2024 |
| TTHM 2950 | Organic Chemical | 6 of 9 results | May 10, 2004 | Jul 18, 2018 |
| Chloroform 2941 | Organic Chemical | 5 of 5 results | Jul 11, 2007 | Jul 18, 2018 |
| Bromodichloromethane 2943 | Organic Chemical | 5 of 5 results | Jul 11, 2007 | Jul 18, 2018 |
| Dibromochloromethane 2944 | Organic Chemical | 5 of 5 results | Jul 11, 2007 | Jul 18, 2018 |
| Selenium 1045 | Inorganic Chemical | 5 of 16 results | Feb 14, 2005 | May 7, 2008 |
| Dichloroacetic Acid 2451 | Organic Chemical | 4 of 4 results | Aug 13, 2008 | Jul 18, 2018 |
| Cadmium 1015 | Inorganic Chemical | 4 of 16 results | Feb 14, 2005 | Jan 23, 2006 |
| Calcium 1016 | Inorganic Chemical | 3 of 3 results | Oct 11, 2021 | Oct 11, 2021 |
| Chloride 1017 | Inorganic Chemical | 3 of 3 results | Oct 11, 2021 | Oct 11, 2021 |
| Conductivity @ 25 C Umhos/CM 1064 | Water Quality | 3 of 3 results | Oct 11, 2021 | Oct 11, 2021 |
| Alkalinity, Total 1927 | Water Quality | 3 of 3 results | Oct 11, 2021 | Oct 11, 2021 |
| Color 1905 | Water Quality | 2 of 3 results | Oct 11, 2021 | Oct 11, 2021 |
| Dibromoacetic Acid 2454 | Organic Chemical | 2 of 4 results | Jul 11, 2012 | Jul 18, 2018 |
| Bromoform 2942 | Organic Chemical | 2 of 5 results | Jul 11, 2007 | Jul 18, 2018 |
| Arsenic 1005 | Inorganic Chemical | 1 of 16 results | Jan 29, 2025 | Jan 29, 2025 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 1 of 27 results | Jan 22, 2018 | Jan 22, 2018 |
| Nitrate 1040 | Inorganic Chemical | 1 of 27 results | Jan 22, 2018 | Jan 22, 2018 |
| Trichloroacetic Acid 2452 | Organic Chemical | 1 of 4 results | Aug 18, 2014 | Aug 18, 2014 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 4 results | Aug 13, 2008 | Aug 13, 2008 |
| Beryllium, Total 1075 | Inorganic Chemical | 1 of 16 results | Feb 3, 2004 | Feb 3, 2004 |
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 141–150 of 277 samples, newest first — collected April 11, 2007 to July 19, 2007. The summary above covers all 277.
23 results from the 10 samples listed here: 17 detected, 6 not detected. Across the whole record it is 411 of 982. 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 |
|---|---|---|
|
||
| 0.0632 mg/l , sample collected Jul 19, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0007 mg/l , sample collected Jul 19, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.0411 mg/l , sample collected Jul 19, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 19, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.0354 mg/l , sample collected Jul 19, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0014 mg/l , sample collected Jul 19, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.1446 mg/l , sample collected Jul 19, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 19, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.0121 mg/l , sample collected Jul 19, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0006 mg/l , sample collected Jul 19, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.0921 mg/l , sample collected Jul 19, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 19, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.02 mg/l , sample collected Jul 16, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0026 mg/l , sample collected Jul 16, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.0085 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jul 11, 2007, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2005 – Dec 31, 2007 |
|
||
| 11.4 ug/l , sample collected Jul 11, 2007, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| 1.92 ug/l , sample collected Jul 11, 2007, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 6.84 ug/l , sample collected Jul 11, 2007, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 7.06 ug/l , sample collected Jul 11, 2007, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 27.22 ug/l , sample collected Jul 11, 2007, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2005 – Dec 31, 2007 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 11, 2007, sampling point TF080 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2007 – Dec 31, 2007 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 11, 2007, sampling point TF080 | Nitrate 1040 EPA method 353.2 | Jan 1, 2007 – Dec 31, 2007 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 11, 2007, sampling point TF080 | Nitrite 1041 EPA method 353.2 | Jan 1, 2007 – Dec 31, 2007 |
-
- Collected
- Jul 19, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070720-080PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0632 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0007 mg/l
-
- Collected
- Jul 19, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070720-075PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0411 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 19, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070720-076PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0354 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0014 mg/l
-
- Collected
- Jul 19, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070720-079PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.1446 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 19, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070720-077PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0121 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0006 mg/l
-
- Collected
- Jul 19, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070720-082PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0921 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 16, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070720-074PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.02 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0026 mg/l
-
- Collected
- Jul 11, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070712-001HA
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2005 – Dec 31, 2007
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 0.0085 mg/l The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType.
-
- Collected
- Jul 11, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070712-001TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 11.4 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- 1.92 ug/l
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 6.84 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 7.06 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 27.22 ug/l
- Monitoring period
- Jan 1, 2005 – Dec 31, 2007
-
- Collected
- Apr 11, 2007
- Sampling point
- TF080 Treatment Plant T080
- Sample type
- Routine
- Lab sample
- 070412-077NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2007 – Dec 31, 2007
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
Routine (10).