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
MS0660022 , Sunflower Utility Assc Inc
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 | 10 | 0.163 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2021 – Dec 31, 2023 | 10 | 0.0012 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2018 – Dec 31, 2020 | 10 | 0.1089 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2018 – Dec 31, 2020 | 10 | 0.0006 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2015 – Dec 31, 2017 | 10 | 0.2071 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2015 – Dec 31, 2017 | 10 | 0.0012 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2012 – Dec 31, 2014 | 10 | 0.0844 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2012 – Dec 31, 2014 | 10 | 0.0037 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2011 – Dec 31, 2011 | 10 | 0.1003 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2011 – Dec 31, 2011 | 10 | 0.0015 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2010 – Dec 31, 2010 | 10 | 0.0103 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2010 – Dec 31, 2010 | 10 | 0.0006 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2009 – Jun 30, 2009 | 20 | 0.2589 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2009 – Jun 30, 2009 | 20 | 0.0022 mg/l | DS000 | Accepted |
| Copper | Jul 1, 2008 – Dec 31, 2008 | 20 | 0.2086 mg/l | DS000 | Accepted |
| Lead | Jul 1, 2008 – Dec 31, 2008 | 20 | 0.0023 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2007 – Dec 31, 2007 | 20 | 0.0177 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2007 – Dec 31, 2007 | 20 | 0.0015 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2006 – Dec 31, 2006 | 11 | 0.2447 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2006 – Dec 31, 2006 | 11 | 0.0034 mg/l | DS000 | Accepted |
| Copper | Jul 1, 2004 – Dec 31, 2004 | 20 | 0.1853 mg/l | DS000 | Accepted |
| Lead | Jul 1, 2004 – Dec 31, 2004 | 20 | 3.3658 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2003 – Jun 30, 2003 | 20 | 0.156 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2003 – Jun 30, 2003 | 20 | 0.001 mg/l | DS000 | Accepted |
| Copper | Jul 1, 2002 – Dec 31, 2002 | 8 | 0.365 mg/l | DS000 | Accepted |
| Lead | Jul 1, 2002 – Dec 31, 2002 | 8 | 0.001 mg/l | DS000 | Accepted |
| Copper | Jul 1, 2001 – Dec 31, 2001 | 6 | 0.096 mg/l | DS000 | Accepted |
| Lead | Jul 1, 2001 – Dec 31, 2001 | 6 | 0.001 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2001 – Jun 30, 2001 | 26 | 0.31 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2001 – Jun 30, 2001 | 26 | 0.005 mg/l | DS000 | Accepted |
| Copper | Jul 1, 2000 – Dec 31, 2000 | 9 | 0.39 mg/l | DS000 | Accepted |
| Lead | Jul 1, 2000 – Dec 31, 2000 | 9 | 0.001 mg/l | DS000 | Accepted |
| Copper | Jul 1, 1998 – Dec 31, 1998 | 18 | 0.205 mg/l | DS000 | Accepted |
| Lead | Jul 1, 1998 – Dec 31, 1998 | 18 | 0.002 mg/l | DS000 | Accepted |
| Copper | Jan 1, 1998 – Jun 30, 1998 | 15 | 0.243 mg/l | DS000 | Accepted |
| Lead | Jan 1, 1998 – Jun 30, 1998 | 15 | 0.003 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.