Lead and copper

MS0760006 , City of Leland

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 Leland, 28 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	0.968 mg/l	DS000	Accepted
Lead	Jan 1, 2023 – Dec 31, 2025	20	0.0007 mg/l	DS000	Accepted
Copper	Jan 1, 2020 – Dec 31, 2022	20	0.875 mg/l	DS000	Accepted
Lead	Jan 1, 2020 – Dec 31, 2022	20	0.0008 mg/l	DS000	Accepted
Copper	Jan 1, 2017 – Dec 31, 2019	17	0.0963 mg/l	DS000	Accepted
Lead	Jan 1, 2017 – Dec 31, 2019	17	0.0012 mg/l	DS000	Accepted
Copper	Jan 1, 2014 – Dec 31, 2016	21	0.242 mg/l	DS000	Accepted
Lead	Jan 1, 2014 – Dec 31, 2016	21	0.0107 mg/l	DS000	Accepted
Copper	Jan 1, 2011 – Dec 31, 2013	22	1.1998 mg/l	DS000	Accepted
Lead	Jan 1, 2011 – Dec 31, 2013	22	0.0037 mg/l	DS000	Accepted
Copper	Jan 1, 2008 – Dec 31, 2010	20	0.71 mg/l	DS000	Accepted
Lead	Jan 1, 2008 – Dec 31, 2010	20	0.0027 mg/l	DS000	Accepted
Copper	Jan 1, 2005 – Dec 31, 2007	20	0.6065 mg/l	DS000	Accepted
Lead	Jan 1, 2005 – Dec 31, 2007	20	0.0024 mg/l	DS000	Accepted
Copper	Jan 1, 2002 – Dec 31, 2004	19	0.2812 mg/l	DS000	Accepted
Lead	Jan 1, 2002 – Dec 31, 2004	19	0.0031 mg/l	DS000	Accepted
Copper	Jan 1, 1999 – Dec 31, 2001	20	0.147 mg/l	DS000	Accepted
Lead	Jan 1, 1999 – Dec 31, 2001	20	0.004 mg/l	DS000	Accepted
Copper	Jan 1, 1996 – Dec 31, 1998	19	0.363 mg/l	DS000	Accepted
Lead	Jan 1, 1996 – Dec 31, 1998	19	0.004 mg/l	DS000	Accepted
Copper	Jan 1, 1995 – Dec 31, 1995	20	0.201 mg/l	DS000	Accepted
Lead	Jan 1, 1995 – Dec 31, 1995	20	0.004 mg/l	DS000	Accepted
Copper	Jan 1, 1994 – Dec 31, 1994	20	0.47 mg/l	DS000	Accepted
Lead	Jan 1, 1994 – Dec 31, 1994	20	0.005 mg/l	DS000	Accepted
Copper	Jan 1, 1993 – Jun 30, 1993	40	0.387 mg/l	DS000	Accepted
Lead	Jan 1, 1993 – Jun 30, 1993	40	0.004 mg/l	DS000	Accepted
Copper	Jul 1, 1992 – Dec 31, 1992	40	0.22 mg/l	DS000	Accepted
Lead	Jul 1, 1992 – Dec 31, 1992	40	0.008 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.