Lead and copper

MS0410016 , City of Verona

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 City of Verona, 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, 2023 – Dec 31, 2025	20	0.152 mg/l	DS000	Accepted
Lead	Jan 1, 2023 – Dec 31, 2025	20	0.000547 mg/l	DS000	Accepted
Copper	Jan 1, 2020 – Dec 31, 2022	20	0.54 mg/l	DS000	Accepted
Lead	Jan 1, 2020 – Dec 31, 2022	20	0.0009 mg/l	DS000	Accepted
Copper	Jan 1, 2017 – Dec 31, 2019	20	0.4942 mg/l	DS000	Accepted
Lead	Jan 1, 2017 – Dec 31, 2019	20	0.0015 mg/l	DS000	Accepted
Copper	Jan 1, 2014 – Dec 31, 2016	20	0.4149 mg/l	DS000	Accepted
Lead	Jan 1, 2014 – Dec 31, 2016	20	0.0019 mg/l	DS000	Accepted
Copper	Jan 1, 2011 – Dec 31, 2013	20	0.2252 mg/l	DS000	Accepted
Lead	Jan 1, 2011 – Dec 31, 2013	20	0.0036 mg/l	DS000	Accepted
Copper	Jan 1, 2008 – Dec 31, 2010	20	0.2154 mg/l	DS000	Accepted
Lead	Jan 1, 2008 – Dec 31, 2010	20	0.0034 mg/l	DS000	Accepted
Copper	Jan 1, 2005 – Dec 31, 2007	20	0.296 mg/l	DS000	Accepted
Lead	Jan 1, 2005 – Dec 31, 2007	20	0.0012 mg/l	DS000	Accepted
Copper	Jan 1, 2000 – Dec 31, 2002	10	0.397 mg/l	DS000	Accepted
Lead	Jan 1, 2000 – Dec 31, 2002	10	0.003 mg/l	DS000	Accepted
Copper	Jan 1, 1996 – Dec 31, 1996	10	0.186 mg/l	DS000	Accepted
Lead	Jan 1, 1996 – Dec 31, 1996	10	0 mg/l	DS000	Accepted
Copper	Jan 1, 1995 – Dec 31, 1995	10	0.274 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	20	0.196 mg/l	DS000	Accepted
Lead	Jan 1, 1994 – Jun 30, 1994	20	0.001 mg/l	DS000	Accepted
Copper	Jul 1, 1993 – Dec 31, 1993	20	0.319 mg/l	DS000	Accepted
Lead	Jul 1, 1993 – Dec 31, 1993	20	0.001 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.