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
MS0250008 , City of Jackson
1–50 of 62 monitoring periods, newest first. 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, 2026 – Jun 30, 2026 | 100 | 0.028 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2026 – Jun 30, 2026 | 100 | 0.0032 mg/l | DS000 | Accepted |
| Copper | Jul 1, 2025 – Dec 31, 2025 | 100 | 0.0271 mg/l | DS000 | Accepted |
| Lead | Jul 1, 2025 – Dec 31, 2025 | 100 | 0.0041 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2025 – Jun 30, 2025 | 100 | 0.0426 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2025 – Jun 30, 2025 | 100 | 0.0045 mg/l | DS000 | Accepted |
| Copper | Jul 1, 2024 – Dec 31, 2024 | 100 | 0.0537 mg/l | DS000 | Accepted |
| Lead | Jul 1, 2024 – Dec 31, 2024 | 100 | 0.0052 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2024 – Jun 30, 2024 | 101 | 0.0635 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2024 – Jun 30, 2024 | 101 | 0.0074 mg/l | DS000 | Accepted |
| Copper | Jul 1, 2023 – Dec 31, 2023 | 100 | 0.0703 mg/l | DS000 | Accepted |
| Lead | Jul 1, 2023 – Dec 31, 2023 | 100 | 0.0095 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2023 – Jun 30, 2023 | 100 | 0.0532 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2023 – Jun 30, 2023 | 100 | 0.0058 mg/l | DS000 | Accepted |
| Copper | Jul 1, 2022 – Dec 31, 2022 | 100 | 0.0915 mg/l | DS000 | Accepted |
| Lead | Jul 1, 2022 – Dec 31, 2022 | 100 | 0.006 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2022 – Jun 30, 2022 | 101 | 0.0629 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2022 – Jun 30, 2022 | 101 | 0.0042 mg/l | DS000 | Accepted |
| Copper | Jul 1, 2021 – Dec 31, 2021 | 100 | 0.138 mg/l | DS000 | Accepted |
| Lead | Jul 1, 2021 – Dec 31, 2021 | 100 | 0.0107 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2021 – Jun 30, 2021 | 100 | 0.111 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2021 – Jun 30, 2021 | 100 | 0.006 mg/l | DS000 | Accepted |
| Copper | Jul 1, 2020 – Dec 31, 2020 | 101 | 0.0903 mg/l | DS000 | Accepted |
| Lead | Jul 1, 2020 – Dec 31, 2020 | 101 | 0.0046 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2020 – Jun 30, 2020 | 100 | 0.0737 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2020 – Jun 30, 2020 | 100 | 0.0037 mg/l | DS000 | Accepted |
| Copper | Jul 1, 2019 – Dec 31, 2019 | 102 | 0.09 mg/l | DS000 | Accepted |
| Lead | Jul 1, 2019 – Dec 31, 2019 | 102 | 0.007 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2019 – Jun 30, 2019 | 100 | 0.0976 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2019 – Jun 30, 2019 | 100 | 0.0066 mg/l | DS000 | Accepted |
| Copper | Jul 1, 2018 – Dec 31, 2018 | 100 | 0.1084 mg/l | DS000 | Accepted |
| Lead | Jul 1, 2018 – Dec 31, 2018 | 100 | 0.0084 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2018 – Jun 30, 2018 | 102 | 0.1015 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2018 – Jun 30, 2018 | 102 | 0.007 mg/l | DS000 | Accepted |
| Copper | Jul 1, 2017 – Dec 31, 2017 | 110 | 0.2271 mg/l | DS000 | Accepted |
| Lead | Jul 1, 2017 – Dec 31, 2017 | 110 | 0.0148 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2017 – Jun 30, 2017 | 114 | 0.1297 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2017 – Jun 30, 2017 | 114 | 0.007 mg/l | DS000 | Accepted |
| Copper | Jul 1, 2016 – Dec 31, 2016 | 121 | 0.1327 mg/l | DS000 | Accepted |
| Lead | Jul 1, 2016 – Dec 31, 2016 | 121 | 0.0164 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2016 – Jun 30, 2016 | 101 | 0.49 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2016 – Jun 30, 2016 | 101 | 0.016 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2013 – Dec 31, 2015 | 57 | 0.4091 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2013 – Dec 31, 2015 | 57 | 0.0286 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2011 – Dec 31, 2013 | 50 | 0.1687 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2011 – Dec 31, 2013 | 50 | 0.0137 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2010 – Dec 31, 2012 | 50 | 0.1687 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2010 – Dec 31, 2012 | 50 | 0.0137 mg/l | DS000 | Accepted |
| Copper | Jan 1, 2007 – Dec 31, 2009 | 50 | 0.0264 mg/l | DS000 | Accepted |
| Lead | Jan 1, 2007 – Dec 31, 2009 | 50 | 0.0048 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.