Lead and copper

MS0160009 , Southwest Covington W/A

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 Southwest Covington W/A, 24 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, 2022 – Dec 31, 2024	20	0.649 mg/l	DS000	Accepted
Lead	Jan 1, 2022 – Dec 31, 2024	20	0.0025 mg/l	DS000	Accepted
Copper	Jan 1, 2019 – Dec 31, 2021	20	0.421 mg/l	DS000	Accepted
Lead	Jan 1, 2019 – Dec 31, 2021	20	0.0047 mg/l	DS000	Accepted
Copper	Jan 1, 2016 – Dec 31, 2018	20	0.3061 mg/l	DS000	Accepted
Lead	Jan 1, 2016 – Dec 31, 2018	20	0.0035 mg/l	DS000	Accepted
Copper	Jan 1, 2014 – Dec 31, 2016	20	0.4176 mg/l	DS000	Accepted
Lead	Jan 1, 2014 – Dec 31, 2016	20	0.0025 mg/l	DS000	Accepted
Copper	Jan 1, 2011 – Dec 31, 2013	20	0.2545 mg/l	DS000	Accepted
Lead	Jan 1, 2011 – Dec 31, 2013	20	0.0016 mg/l	DS000	Accepted
Copper	Jan 1, 2008 – Dec 31, 2010	20	0.2282 mg/l	DS000	Accepted
Lead	Jan 1, 2008 – Dec 31, 2010	20	0.0031 mg/l	DS000	Accepted
Copper	Jan 1, 2005 – Dec 31, 2007	20	0.1664 mg/l	DS000	Accepted
Lead	Jan 1, 2005 – Dec 31, 2007	20	0.0035 mg/l	DS000	Accepted
Copper	Jan 1, 2000 – Dec 31, 2002	10	0.22 mg/l	DS000	Accepted
Lead	Jan 1, 2000 – Dec 31, 2002	10	0.002 mg/l	DS000	Accepted
Copper	Jan 1, 1996 – Dec 31, 1996	10	0.191 mg/l	DS000	Accepted
Lead	Jan 1, 1996 – Dec 31, 1996	10	0.006 mg/l	DS000	Accepted
Copper	Jan 1, 1995 – Dec 31, 1995	10	0.203 mg/l	DS000	Accepted
Lead	Jan 1, 1995 – Dec 31, 1995	10	0.002 mg/l	DS000	Accepted
Copper	Jan 1, 1994 – Jun 30, 1994	22	0.412 mg/l	DS000	Accepted
Lead	Jan 1, 1994 – Jun 30, 1994	22	0.002 mg/l	DS000	Accepted
Copper	Jul 1, 1993 – Dec 31, 1993	22	0.459 mg/l	DS000	Accepted
Lead	Jul 1, 1993 – Dec 31, 1993	22	0.003 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.