Lead and copper

MS0140008 , Town of Jonestown

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 Jonestown, 38 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, 2021 – Dec 31, 2023	10	0.113 mg/l	DS000	Accepted
Lead	Jan 1, 2021 – Dec 31, 2023	10	0.0015 mg/l	DS000	Accepted
Copper	Jan 1, 2015 – Dec 31, 2017	10	0.0511 mg/l	DS000	Accepted
Lead	Jan 1, 2015 – Dec 31, 2017	10	0.0019 mg/l	DS000	Accepted
Copper	Jan 1, 2012 – Dec 31, 2014	12	0.1335 mg/l	DS000	Accepted
Lead	Jan 1, 2012 – Dec 31, 2014	12	0.002 mg/l	DS000	Accepted
Copper	Jan 1, 2011 – Dec 31, 2011	10	0.0523 mg/l	DS000	Accepted
Lead	Jan 1, 2011 – Dec 31, 2011	10	0.0015 mg/l	DS000	Accepted
Copper	Jan 1, 2010 – Dec 31, 2010	10	0.0953 mg/l	DS000	Accepted
Lead	Jan 1, 2010 – Dec 31, 2010	10	0.002 mg/l	DS000	Accepted
Copper	Jan 1, 2009 – Dec 31, 2009	10	0.1572 mg/l	DS000	Accepted
Lead	Jan 1, 2009 – Dec 31, 2009	10	0.0078 mg/l	DS000	Accepted
Copper	Jul 1, 2008 – Dec 31, 2008	20	0.1279 mg/l	DS000	Accepted
Lead	Jul 1, 2008 – Dec 31, 2008	20	0.0052 mg/l	DS000	Accepted
Copper	Jan 1, 2008 – Jun 30, 2008	20	0.0566 mg/l	DS000	Accepted
Lead	Jan 1, 2008 – Jun 30, 2008	20	0.005 mg/l	DS000	Accepted
Copper	Jul 1, 2007 – Dec 31, 2007	20	0.1898 mg/l	DS000	Accepted
Lead	Jul 1, 2007 – Dec 31, 2007	20	0.0031 mg/l	DS000	Accepted
Copper	Jan 1, 2007 – Jun 30, 2007	12	0.1085 mg/l	DS000	Accepted
Lead	Jan 1, 2007 – Jun 30, 2007	12	0.0032 mg/l	DS000	Accepted
Copper	Jan 1, 2005 – Jun 30, 2005	12	0.0403 mg/l	DS000	Accepted
Lead	Jan 1, 2005 – Jun 30, 2005	12	0.0018 mg/l	DS000	Accepted
Copper	Jul 1, 2004 – Dec 31, 2004	12	0.026 mg/l	DS000	Accepted
Lead	Jul 1, 2004 – Dec 31, 2004	12	0.002 mg/l	DS000	Accepted
Copper	Jan 1, 2000 – Dec 31, 2002	20	0.113 mg/l	DS000	Accepted
Lead	Jan 1, 2000 – Dec 31, 2002	20	0.019 mg/l	DS000	Accepted
Copper	Jan 1, 1997 – Dec 31, 1999	9	0.065 mg/l	DS000	Accepted
Lead	Jan 1, 1997 – Dec 31, 1999	9	0.005 mg/l	DS000	Accepted
Copper	Jan 1, 1996 – Dec 31, 1996	10	0.147 mg/l	DS000	Accepted
Lead	Jan 1, 1996 – Dec 31, 1996	10	0.005 mg/l	DS000	Accepted
Copper	Jan 1, 1995 – Dec 31, 1995	10	0.071 mg/l	DS000	Accepted
Lead	Jan 1, 1995 – Dec 31, 1995	10	0.011 mg/l	DS000	Accepted
Copper	Jul 1, 1994 – Dec 31, 1994	20	0.082 mg/l	DS000	Accepted
Lead	Jul 1, 1994 – Dec 31, 1994	20	0.009 mg/l	DS000	Accepted
Copper	Jan 1, 1994 – Jun 30, 1994	21	0.156 mg/l	DS000	Accepted
Lead	Jan 1, 1994 – Jun 30, 1994	21	0.012 mg/l	DS000	Accepted
Copper	Jul 1, 1993 – Dec 31, 1993	11	0 mg/l	DS000	Accepted
Lead	Jul 1, 1993 – Dec 31, 1993	11	0.007 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.