Lead and copper

MS0160004 , North Covington W/A-North

Every monitoring period on record is listed here. This page applies no date range. The same list limited to the last two years.

Lead and copper 90th-percentile sample summaries for North Covington W/A-North, 40 summaries, every one on record. The agency records no date of receipt for any of them.
Analyte	Monitoring period	Samples	90th percentile	Facility	Data quality
Copper	Jan 1, 2025 – Dec 31, 2025	10	0.524 mg/l	DS000	Accepted
Lead	Jan 1, 2025 – Dec 31, 2025	10	0.001 mg/l	DS000	Accepted
Copper	Jan 1, 2024 – Dec 31, 2024	10	0.408 mg/l	DS000	Accepted
Lead	Jan 1, 2024 – Dec 31, 2024	10	0.0005 mg/l	DS000	Accepted
Copper	Jan 1, 2023 – Dec 31, 2023	10	0.0949 mg/l	DS000	Accepted
Lead	Jan 1, 2023 – Dec 31, 2023	10	0.0006 mg/l	DS000	Accepted
Copper	Jan 1, 2022 – Dec 31, 2022	10	0.0046 mg/l	DS000	Accepted
Lead	Jan 1, 2022 – Dec 31, 2022	10	0.0005 mg/l	DS000	Accepted
Copper	Jul 1, 2021 – Dec 31, 2021	20	0.102 mg/l	DS000	Accepted
Lead	Jul 1, 2021 – Dec 31, 2021	20	0.0006 mg/l	DS000	Accepted
Copper	Jan 1, 2021 – Jun 30, 2021	20	0.369 mg/l	DS000	Accepted
Lead	Jan 1, 2021 – Jun 30, 2021	20	0.0016 mg/l	DS000	Accepted
Copper	Jan 1, 2020 – Jun 30, 2020	20	0.2131 mg/l	DS000	Accepted
Lead	Jan 1, 2020 – Jun 30, 2020	20	0.0013 mg/l	DS000	Accepted
Copper	Jan 1, 2018 – Dec 31, 2020	10	1.6951 mg/l	DS000	Accepted
Lead	Jan 1, 2018 – Dec 31, 2020	10	0.0106 mg/l	DS000	Accepted
Copper	Jan 1, 2017 – Dec 31, 2019	10	1.6951 mg/l	DS000	Accepted
Lead	Jan 1, 2017 – Dec 31, 2019	10	0.0106 mg/l	DS000	Accepted
Copper	Jan 1, 2015 – Dec 31, 2017	10	1.0319 mg/l	DS000	Accepted
Lead	Jan 1, 2015 – Dec 31, 2017	10	0.0065 mg/l	DS000	Accepted
Copper	Jan 1, 2014 – Dec 31, 2016	21	0.942 mg/l	DS000	Accepted
Lead	Jan 1, 2014 – Dec 31, 2016	21	0.0112 mg/l	DS000	Accepted
Copper	Jan 1, 2012 – Dec 31, 2014	11	0.4115 mg/l	DS000	Accepted
Lead	Jan 1, 2012 – Dec 31, 2014	11	0.011 mg/l	DS000	Accepted
Copper	Jan 1, 2011 – Dec 31, 2013	10	0.0453 mg/l	DS000	Accepted
Lead	Jan 1, 2011 – Dec 31, 2013	10	0.0005 mg/l	DS000	Accepted
Copper	Jan 1, 2009 – Dec 31, 2011	10	0.0453 mg/l	DS000	Accepted
Lead	Jan 1, 2009 – Dec 31, 2011	10	0.0005 mg/l	DS000	Accepted
Copper	Jan 1, 2006 – Dec 31, 2008	10	0.9153 mg/l	DS000	Accepted
Lead	Jan 1, 2006 – Dec 31, 2008	10	0.0015 mg/l	DS000	Accepted
Copper	Jan 1, 2000 – Dec 31, 2002	10	0.022 mg/l	DS000	Accepted
Lead	Jan 1, 2000 – Dec 31, 2002	10	0.013 mg/l	DS000	Accepted
Copper	Jan 1, 1996 – Dec 31, 1996	10	0 mg/l	DS000	Accepted
Lead	Jan 1, 1996 – Dec 31, 1996	10	0.003 mg/l	DS000	Accepted
Copper	Jan 1, 1995 – Dec 31, 1995	10	0.266 mg/l	DS000	Accepted
Lead	Jan 1, 1995 – Dec 31, 1995	10	0.001 mg/l	DS000	Accepted
Copper	Jan 1, 1994 – Jun 30, 1994	21	0 mg/l	DS000	Accepted
Lead	Jan 1, 1994 – Jun 30, 1994	21	0.001 mg/l	DS000	Accepted
Copper	Jul 1, 1993 – Dec 31, 1993	21	0 mg/l	DS000	Accepted
Lead	Jul 1, 1993 – Dec 31, 1993	21	0 mg/l	DS000	Accepted

No date of receipt is recorded for any of these summaries.

This system’s violations

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.