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
MS0060004 , Town of Boyle
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 | Jan 1, 2022 – Dec 31, 2024 | 10 | 0.683 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2022 – Dec 31, 2024 | 10 | 0.0011 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2019 – Dec 31, 2021 | 10 | 0.328 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2019 – Dec 31, 2021 | 10 | 0.0017 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2016 – Dec 31, 2018 | 10 | 0.5738 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2016 – Dec 31, 2018 | 10 | 0.0009 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2013 – Dec 31, 2015 | 11 | 0.5296 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2013 – Dec 31, 2015 | 11 | 0.0005 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2010 – Dec 31, 2012 | 11 | 0.431 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2010 – Dec 31, 2012 | 11 | 0.0018 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2009 – Dec 31, 2009 | 10 | 0.8863 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2009 – Dec 31, 2009 | 10 | 0.0018 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2008 – Dec 31, 2008 | 10 | 0.5704 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2008 – Dec 31, 2008 | 10 | 0.0011 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2007 – Dec 31, 2007 | 22 | 0.2868 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2007 – Dec 31, 2007 | 22 | 0.0033 mg/l | DS000 | Accepted |
| Copper | Jul 1, 2004 – Dec 31, 2004 | 23 | 0.5218 mg/l | DS000 | Accepted |
| Lead | Jul 1, 2004 – Dec 31, 2004 | 23 | 0.0042 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2004 – Jun 30, 2004 | 22 | 0.3956 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2004 – Jun 30, 2004 | 22 | 0.0014 mg/l | DS000 | Accepted |
| Copper | Jul 1, 2001 – Dec 31, 2001 | 10 | 0.076 mg/l | DS000 | Accepted |
| Lead | Jul 1, 2001 – Dec 31, 2001 | 10 | 0.002 mg/l | DS000 | Accepted |
| Copper | Jul 1, 1999 – Dec 31, 1999 | 7 | 0.855 mg/l | DS000 | Accepted |
| Lead | Jul 1, 1999 – Dec 31, 1999 | 7 | 0.001 mg/l | DS000 | Accepted |
| Copper | Jan 1, 1999 – Jun 30, 1999 | 2 | 0.33 mg/l | DS000 | Accepted |
| Lead | Jan 1, 1999 – Jun 30, 1999 | 2 | 0 mg/l | DS000 | Accepted |
| Copper | Jan 1, 1997 – Jun 30, 1997 | 9 | 0 mg/l | DS000 | Accepted |
| Lead | Jan 1, 1997 – Jun 30, 1997 | 9 | 0 mg/l | DS000 | Accepted |
| Copper | Jan 1, 1996 – Dec 31, 1996 | 15 | 0.495 mg/l | DS000 | Accepted |
| Lead | Jan 1, 1996 – Dec 31, 1996 | 15 | 0.017 mg/l | DS000 | Accepted |
| Copper | Jan 1, 1995 – Dec 31, 1995 | 10 | 0.341 mg/l | DS000 | Accepted |
| Lead | Jan 1, 1995 – Dec 31, 1995 | 10 | 0.006 mg/l | DS000 | Accepted |
| Copper | Jan 1, 1994 – Jun 30, 1994 | 20 | 0.64 mg/l | DS000 | Accepted |
| Lead | Jan 1, 1994 – Jun 30, 1994 | 20 | 0.004 mg/l | DS000 | Accepted |
| Copper | Jul 1, 1993 – Dec 31, 1993 | 20 | 0.657 mg/l | DS000 | Accepted |
| Lead | Jul 1, 1993 – Dec 31, 1993 | 20 | 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.