Lead and copper

MS0550058 , Pearl River Central W/A-Bi Co

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 Pearl River Central W/A-Bi Co, 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	20	0.182 mg/l	DS000	Accepted
Lead	Jan 1, 2022 – Dec 31, 2024	20	0.0166 mg/l	DS000	Accepted
Copper	Jan 1, 2019 – Dec 31, 2021	20	0.143 mg/l	DS000	Accepted
Lead	Jan 1, 2019 – Dec 31, 2021	20	0.007 mg/l	DS000	Accepted
Copper	Jan 1, 2016 – Dec 31, 2018	20	0.2135 mg/l	DS000	Accepted
Lead	Jan 1, 2016 – Dec 31, 2018	20	0.0055 mg/l	DS000	Accepted
Copper	Jan 1, 2013 – Dec 31, 2015	21	0.2042 mg/l	DS000	Accepted
Lead	Jan 1, 2013 – Dec 31, 2015	21	0.0023 mg/l	DS000	Accepted
Copper	Jan 1, 2010 – Dec 31, 2012	10	0.1209 mg/l	DS000	Accepted
Lead	Jan 1, 2010 – Dec 31, 2012	10	0.0024 mg/l	DS000	Accepted
Copper	Jan 1, 2007 – Dec 31, 2009	10	0.0173 mg/l	DS000	Accepted
Lead	Jan 1, 2007 – Dec 31, 2009	10	0.0009 mg/l	DS000	Accepted
Copper	Jan 1, 2004 – Dec 31, 2006	10	0.025 mg/l	DS000	Accepted
Lead	Jan 1, 2004 – Dec 31, 2006	10	0.0003 mg/l	DS000	Accepted
Copper	Jan 1, 2003 – Dec 31, 2003	10	0.091 mg/l	DS000	Accepted
Lead	Jan 1, 2003 – Dec 31, 2003	10	0 mg/l	DS000	Accepted
Copper	Jan 1, 2002 – Dec 31, 2002	20	0.079 mg/l	DS000	Accepted
Lead	Jan 1, 2002 – Dec 31, 2002	20	0.001 mg/l	DS000	Accepted
Copper	Jul 1, 2001 – Dec 31, 2001	21	0.121 mg/l	DS000	Accepted
Lead	Jul 1, 2001 – Dec 31, 2001	21	0.001 mg/l	DS000	Accepted
Copper	Jan 1, 2001 – Jun 30, 2001	18	0.129 mg/l	DS000	Accepted
Lead	Jan 1, 2001 – Jun 30, 2001	18	0.004 mg/l	DS000	Accepted
Copper	Jan 1, 2000 – Dec 31, 2000	10	0.446 mg/l	DS000	Accepted
Lead	Jan 1, 2000 – Dec 31, 2000	10	0.115 mg/l	DS000	Accepted
Copper	Jan 1, 1996 – Dec 31, 1996	10	0.332 mg/l	DS000	Accepted
Lead	Jan 1, 1996 – Dec 31, 1996	10	0.001 mg/l	DS000	Accepted
Copper	Jul 1, 1995 – Dec 31, 1995	20	0.724 mg/l	DS000	Accepted
Lead	Jul 1, 1995 – Dec 31, 1995	20	0 mg/l	DS000	Accepted
Copper	Jan 1, 1995 – Jun 30, 1995	21	0.44 mg/l	DS000	Accepted
Lead	Jan 1, 1995 – Jun 30, 1995	21	0.003 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.