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
MS0240002 , D'Iberville W/S
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 | 30 | 0.0586 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2022 – Dec 31, 2024 | 30 | 0.0016 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2019 – Dec 31, 2021 | 30 | 0.0737 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2019 – Dec 31, 2021 | 30 | 0.0017 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2016 – Dec 31, 2018 | 29 | 0.0778 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2016 – Dec 31, 2018 | 29 | 0.0019 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2014 – Dec 31, 2016 | 30 | 0.1326 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2014 – Dec 31, 2016 | 30 | 0.0027 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2011 – Dec 31, 2013 | 30 | 0.0855 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2011 – Dec 31, 2013 | 30 | 0.0027 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2008 – Dec 31, 2010 | 20 | 0.0964 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2008 – Dec 31, 2010 | 20 | 0.0014 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2005 – Dec 31, 2007 | 24 | 0.1415 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2005 – Dec 31, 2007 | 24 | 0.0051 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2002 – Dec 31, 2004 | 20 | 0.1076 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2002 – Dec 31, 2004 | 20 | 0.0025 mg/l | DS000 | Accepted |
| Copper | Jan 1, 1999 – Dec 31, 2001 | 20 | 0.101 mg/l | DS000 | Accepted |
| Lead | Jan 1, 1999 – Dec 31, 2001 | 20 | 0.003 mg/l | DS000 | Accepted |
| Copper | Jan 1, 1996 – Dec 31, 1998 | 20 | 0.095 mg/l | DS000 | Accepted |
| Lead | Jan 1, 1996 – Dec 31, 1998 | 20 | 0.003 mg/l | DS000 | Accepted |
| Copper | Jan 1, 1995 – Dec 31, 1995 | 20 | 0.076 mg/l | DS000 | Accepted |
| Lead | Jan 1, 1995 – Dec 31, 1995 | 20 | 0.003 mg/l | DS000 | Accepted |
| Copper | Jan 1, 1994 – Dec 31, 1994 | 20 | 0.205 mg/l | DS000 | Accepted |
| Lead | Jan 1, 1994 – Dec 31, 1994 | 20 | 0.004 mg/l | DS000 | Accepted |
| Copper | Jan 1, 1993 – Jun 30, 1993 | 40 | 0.236 mg/l | DS000 | Accepted |
| Lead | Jan 1, 1993 – Jun 30, 1993 | 40 | 0.006 mg/l | DS000 | Accepted |
| Copper | Jul 1, 1992 – Dec 31, 1992 | 40 | 0.6 mg/l | DS000 | Accepted |
| Lead | Jul 1, 1992 – Dec 31, 1992 | 40 | 0.004 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.