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.
Lead and copper
MS0420044 , Viking Specialty Products
Every monitoring period on record is listed here. This page applies no date range. The same list limited to the last two years.
| Analyte | Monitoring period | Samples | 90th percentile | Facility | Data quality |
|---|---|---|---|---|---|
| Copper | Jul 1, 2025 – Dec 31, 2025 | 5 | 0.242 mg/l | DS000 | Accepted |
| Lead | Jul 1, 2025 – Dec 31, 2025 | 5 | 0.003 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2025 – Jun 30, 2025 | 5 | 0.0694 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2025 – Jun 30, 2025 | 5 | 0.00195 mg/l | DS000 | Accepted |
| Copper | Jul 1, 2024 – Dec 31, 2024 | 5 | 0.072 mg/l | DS000 | Accepted |
| Lead | Jul 1, 2024 – Dec 31, 2024 | 5 | 0.0005 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2024 – Jun 30, 2024 | 5 | 0.0536 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2024 – Jun 30, 2024 | 5 | 0.0003 mg/l | DS000 | Accepted |
| Copper | Jul 1, 2023 – Dec 31, 2023 | 5 | 0.104 mg/l | DS000 | Accepted |
| Lead | Jul 1, 2023 – Dec 31, 2023 | 5 | 0 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2023 – Jun 30, 2023 | 5 | 0.106 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2023 – Jun 30, 2023 | 5 | 0.001 mg/l | DS000 | Accepted |
| Copper | Jul 1, 2022 – Dec 31, 2022 | 5 | 0.167 mg/l | DS000 | Accepted |
| Lead | Jul 1, 2022 – Dec 31, 2022 | 5 | 0 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2022 – Jun 30, 2022 | 5 | 0.0803 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2022 – Jun 30, 2022 | 5 | 0.0012 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2019 – Dec 31, 2021 | 5 | 2.89 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2019 – Dec 31, 2021 | 5 | 0.0063 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2016 – Dec 31, 2018 | 5 | 0.488 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2016 – Dec 31, 2018 | 5 | 0.0013 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2013 – Dec 31, 2015 | 8 | 0.4313 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2013 – Dec 31, 2015 | 8 | 0.0043 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2010 – Dec 31, 2012 | 6 | 0.9533 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2010 – Dec 31, 2012 | 6 | 0.001 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2007 – Dec 31, 2009 | 5 | 0.2613 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2007 – Dec 31, 2009 | 5 | 0.0008 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2004 – Dec 31, 2006 | 6 | 0.5999 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2004 – Dec 31, 2006 | 6 | 0.0008 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2000 – Dec 31, 2000 | 5 | 0.341 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2000 – Dec 31, 2000 | 5 | 0 mg/l | DS000 | Accepted |
| Copper | Jan 1, 1999 – Dec 31, 1999 | 5 | 0.11 mg/l | DS000 | Accepted |
| Lead | Jan 1, 1999 – Dec 31, 1999 | 5 | 0.003 mg/l | DS000 | Accepted |
| Copper | Jul 1, 1998 – Dec 31, 1998 | 5 | 0 mg/l | DS000 | Accepted |
| Lead | Jul 1, 1998 – Dec 31, 1998 | 5 | 0 mg/l | DS000 | Accepted |
| Copper | Jan 1, 1998 – Jun 30, 1998 | 5 | 0.114 mg/l | DS000 | Accepted |
| Lead | Jan 1, 1998 – Jun 30, 1998 | 5 | 0.002 mg/l | DS000 | Accepted |
No date of receipt is recorded for any of these summaries.
What the 90th percentile is
The 90th percentile of all samples collected from the distribution system is the standard that the US Environmental Protection Agency has chosen for determining compliance with the Lead and Copper Action Level under the federal Lead and Copper Rule. The 90th percentile is determined by ranking all sample results from lowest to highest and finding a result that is 90% of the number of sample results from the top. For example, if there are 10 sample results, the 90th percentile would be the 9th sample result from the top.
From the help text published with these pages.