Lead and copper

MS0210003 , Town of McLain

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 Town of McLain, 30 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	5	0.081 mg/l	DS000	Accepted
Lead	Jan 1, 2022 – Dec 31, 2024	5	0.0052 mg/l	DS000	Accepted
Copper	Jan 1, 2019 – Dec 31, 2021	5	0.158 mg/l	DS000	Accepted
Lead	Jan 1, 2019 – Dec 31, 2021	5	0.0086 mg/l	DS000	Accepted
Copper	Jan 1, 2016 – Dec 31, 2018	5	0.079 mg/l	DS000	Accepted
Lead	Jan 1, 2016 – Dec 31, 2018	5	0.0021 mg/l	DS000	Accepted
Copper	Jan 1, 2013 – Dec 31, 2015	10	0.052 mg/l	DS000	Accepted
Lead	Jan 1, 2013 – Dec 31, 2015	10	0.001 mg/l	DS000	Accepted
Copper	Jan 1, 2010 – Dec 31, 2012	11	0.0493 mg/l	DS000	Accepted
Lead	Jan 1, 2010 – Dec 31, 2012	11	0.0009 mg/l	DS000	Accepted
Copper	Jan 1, 2009 – Dec 31, 2009	12	0.0294 mg/l	DS000	Accepted
Lead	Jan 1, 2009 – Dec 31, 2009	12	0.001 mg/l	DS000	Accepted
Copper	Jan 1, 2008 – Dec 31, 2008	10	0.0597 mg/l	DS000	Accepted
Lead	Jan 1, 2008 – Dec 31, 2008	10	0.002 mg/l	DS000	Accepted
Copper	Jan 1, 2007 – Dec 31, 2007	34	0.0536 mg/l	DS000	Accepted
Lead	Jan 1, 2007 – Dec 31, 2007	34	0.0014 mg/l	DS000	Accepted
Copper	Jan 1, 2004 – Dec 31, 2004	10	0.051 mg/l	DS000	Accepted
Lead	Jan 1, 2004 – Dec 31, 2004	10	0.0025 mg/l	DS000	Accepted
Copper	Jan 1, 2000 – Dec 31, 2000	10	0.067 mg/l	DS000	Accepted
Lead	Jan 1, 2000 – Dec 31, 2000	10	0.003 mg/l	DS000	Accepted
Copper	Jul 1, 1996 – Dec 31, 1996	9	0.06 mg/l	DS000	Accepted
Lead	Jul 1, 1996 – Dec 31, 1996	9	0.003 mg/l	DS000	Accepted
Copper	Jan 1, 1996 – Jun 30, 1996	10	0 mg/l	DS000	Accepted
Lead	Jan 1, 1996 – Jun 30, 1996	10	0.002 mg/l	DS000	Accepted
Copper	Jan 1, 1995 – Dec 31, 1995	10	0.101 mg/l	DS000	Accepted
Lead	Jan 1, 1995 – Dec 31, 1995	10	0.022 mg/l	DS000	Accepted
Copper	Jan 1, 1994 – Jun 30, 1994	20	0.059 mg/l	DS000	Accepted
Lead	Jan 1, 1994 – Jun 30, 1994	20	0.004 mg/l	DS000	Accepted
Copper	Jul 1, 1993 – Dec 31, 1993	20	0 mg/l	DS000	Accepted
Lead	Jul 1, 1993 – Dec 31, 1993	20	0.004 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.