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
MS0700008 , City of Ripley
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, 2021 – Dec 31, 2023 | 20 | 0.286 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2021 – Dec 31, 2023 | 20 | 0.0009 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2020 – Dec 31, 2020 | 20 | 0.3115 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2020 – Dec 31, 2020 | 20 | 0.0007 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2019 – Dec 31, 2019 | 20 | 0.4555 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2019 – Dec 31, 2019 | 20 | 0.0013 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2018 – Dec 31, 2018 | 20 | 0.4645 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2018 – Dec 31, 2018 | 20 | 0.0005 mg/l | DS000 | Accepted |
| Copper | Jul 1, 2017 – Dec 31, 2017 | 20 | 0.5462 mg/l | DS000 | Accepted |
| Lead | Jul 1, 2017 – Dec 31, 2017 | 20 | 0.0018 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2017 – Jun 30, 2017 | 20 | 0.3261 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2017 – Jun 30, 2017 | 20 | 0 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2014 – Dec 31, 2016 | 20 | 0.5702 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2014 – Dec 31, 2016 | 20 | 0.0381 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2011 – Dec 31, 2013 | 22 | 0.38 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2011 – Dec 31, 2013 | 22 | 0.002 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2008 – Dec 31, 2010 | 20 | 0.4954 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2008 – Dec 31, 2010 | 20 | 0.002 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2005 – Dec 31, 2007 | 20 | 0.3496 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2005 – Dec 31, 2007 | 20 | 0.0015 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2002 – Dec 31, 2004 | 30 | 0.2555 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2002 – Dec 31, 2004 | 30 | 0.0011 mg/l | DS000 | Accepted |
| Copper | Jan 1, 1999 – Dec 31, 2001 | 20 | 0.375 mg/l | DS000 | Accepted |
| Lead | Jan 1, 1999 – Dec 31, 2001 | 20 | 0.002 mg/l | DS000 | Accepted |
| Copper | Jan 1, 1996 – Dec 31, 1998 | 20 | 0.265 mg/l | DS000 | Accepted |
| Lead | Jan 1, 1996 – Dec 31, 1998 | 20 | 0.002 mg/l | DS000 | Accepted |
| Copper | Jan 1, 1995 – Dec 31, 1995 | 20 | 0.349 mg/l | DS000 | Accepted |
| Lead | Jan 1, 1995 – Dec 31, 1995 | 20 | 0.004 mg/l | DS000 | Accepted |
| Copper | Jan 1, 1994 – Dec 31, 1994 | 20 | 0.221 mg/l | DS000 | Accepted |
| Lead | Jan 1, 1994 – Dec 31, 1994 | 20 | 0.002 mg/l | DS000 | Accepted |
| Copper | Jan 1, 1993 – Jun 30, 1993 | 40 | 0.166 mg/l | DS000 | Accepted |
| Lead | Jan 1, 1993 – Jun 30, 1993 | 40 | 0.004 mg/l | DS000 | Accepted |
| Copper | Jul 1, 1992 – Dec 31, 1992 | 40 | 0.26 mg/l | DS000 | Accepted |
| Lead | Jul 1, 1992 – Dec 31, 1992 | 40 | 0.005 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.