Lead and copper

MS0020003 , Farmington Water Association

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 Farmington Water Association, 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, 2022 – Dec 31, 2024	20	0.122 mg/l	DS000	Accepted
Lead	Jan 1, 2022 – Dec 31, 2024	20	0.0017 mg/l	DS000	Accepted
Copper	Jan 1, 2019 – Dec 31, 2021	20	0.0457 mg/l	DS000	Accepted
Lead	Jan 1, 2019 – Dec 31, 2021	20	0.0011 mg/l	DS000	Accepted
Copper	Jan 1, 2016 – Dec 31, 2018	20	0.0904 mg/l	DS000	Accepted
Lead	Jan 1, 2016 – Dec 31, 2018	20	0.0016 mg/l	DS000	Accepted
Copper	Jan 1, 2013 – Dec 31, 2015	20	0.0738 mg/l	DS000	Accepted
Lead	Jan 1, 2013 – Dec 31, 2015	20	0.0017 mg/l	DS000	Accepted
Copper	Jan 1, 2011 – Dec 31, 2013	20	0.1849 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	0.1431 mg/l	DS000	Accepted
Lead	Jan 1, 2008 – Dec 31, 2010	20	0.0032 mg/l	DS000	Accepted
Copper	Jan 1, 2005 – Dec 31, 2007	21	0.3233 mg/l	DS000	Accepted
Lead	Jan 1, 2005 – Dec 31, 2007	21	0.0021 mg/l	DS000	Accepted
Copper	Jan 1, 2002 – Dec 31, 2004	21	0.133 mg/l	DS000	Accepted
Lead	Jan 1, 2002 – Dec 31, 2004	21	0.0031 mg/l	DS000	Accepted
Copper	Jan 1, 1999 – Dec 31, 2001	20	0.131 mg/l	DS000	Accepted
Lead	Jan 1, 1999 – Dec 31, 2001	20	0.014 mg/l	DS000	Accepted
Copper	Jan 1, 1996 – Dec 31, 1998	20	0.145 mg/l	DS000	Accepted
Lead	Jan 1, 1996 – Dec 31, 1998	20	0.005 mg/l	DS000	Accepted
Copper	Jan 1, 1995 – Dec 31, 1995	20	0.144 mg/l	DS000	Accepted
Lead	Jan 1, 1995 – Dec 31, 1995	20	0.003 mg/l	DS000	Accepted
Copper	Jan 1, 1994 – Dec 31, 1994	20	0.157 mg/l	DS000	Accepted
Lead	Jan 1, 1994 – Dec 31, 1994	20	0.002 mg/l	DS000	Accepted
Copper	Jan 1, 1993 – Jun 30, 1993	40	0.233 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	0.29 mg/l	DS000	Accepted
Lead	Jul 1, 1992 – Dec 31, 1992	40	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.