Lead and copper

MS0010015 , Adams Co W/A #4-Kaiser Lake

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 Adams Co W/A #4-Kaiser Lake, 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	0.221 mg/l	DS000	Accepted
Lead	Jan 1, 2022 – Dec 31, 2024	20	0.0038 mg/l	DS000	Accepted
Copper	Jan 1, 2019 – Dec 31, 2021	20	0.274 mg/l	DS000	Accepted
Lead	Jan 1, 2019 – Dec 31, 2021	20	0.0028 mg/l	DS000	Accepted
Copper	Jan 1, 2016 – Dec 31, 2018	20	0.3471 mg/l	DS000	Accepted
Lead	Jan 1, 2016 – Dec 31, 2018	20	0.002 mg/l	DS000	Accepted
Copper	Jan 1, 2013 – Dec 31, 2015	20	0.3671 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	0.4359 mg/l	DS000	Accepted
Lead	Jan 1, 2011 – Dec 31, 2013	20	0.0035 mg/l	DS000	Accepted
Copper	Jan 1, 2008 – Dec 31, 2010	21	0.33 mg/l	DS000	Accepted
Lead	Jan 1, 2008 – Dec 31, 2010	21	0.0026 mg/l	DS000	Accepted
Copper	Jan 1, 2005 – Dec 31, 2007	20	0.1806 mg/l	DS000	Accepted
Lead	Jan 1, 2005 – Dec 31, 2007	20	0.004 mg/l	DS000	Accepted
Copper	Jan 1, 2002 – Dec 31, 2004	20	0.3223 mg/l	DS000	Accepted
Lead	Jan 1, 2002 – Dec 31, 2004	20	0.0044 mg/l	DS000	Accepted
Copper	Jan 1, 1999 – Dec 31, 2001	20	0.389 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	20	0.235 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	0.382 mg/l	DS000	Accepted
Lead	Jan 1, 1995 – Dec 31, 1995	20	0.006 mg/l	DS000	Accepted
Copper	Jan 1, 1994 – Dec 31, 1994	20	0.281 mg/l	DS000	Accepted
Lead	Jan 1, 1994 – Dec 31, 1994	20	0.004 mg/l	DS000	Accepted
Copper	Jan 1, 1993 – Jun 30, 1993	41	0.291 mg/l	DS000	Accepted
Lead	Jan 1, 1993 – Jun 30, 1993	41	0.007 mg/l	DS000	Accepted
Copper	Jul 1, 1992 – Dec 31, 1992	40	0.6 mg/l	DS000	Accepted
Lead	Jul 1, 1992 – Dec 31, 1992	40	0.006 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.