Lead and copper

MS0820033 , Central Yazoo W/A #5

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 Central Yazoo W/A #5, 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, 2021 – Dec 31, 2023	10	0.138 mg/l	DS000	Accepted
Lead	Jan 1, 2021 – Dec 31, 2023	10	0.000945 mg/l	DS000	Accepted
Copper	Jan 1, 2018 – Dec 31, 2020	10	0.1763 mg/l	DS000	Accepted
Lead	Jan 1, 2018 – Dec 31, 2020	10	0.0024 mg/l	DS000	Accepted
Copper	Jan 1, 2015 – Dec 31, 2017	11	0.2506 mg/l	DS000	Accepted
Lead	Jan 1, 2015 – Dec 31, 2017	11	0.0013 mg/l	DS000	Accepted
Copper	Jan 1, 2012 – Dec 31, 2014	10	0.1652 mg/l	DS000	Accepted
Lead	Jan 1, 2012 – Dec 31, 2014	10	0.001 mg/l	DS000	Accepted
Copper	Jan 1, 2009 – Dec 31, 2011	12	0.1039 mg/l	DS000	Accepted
Lead	Jan 1, 2009 – Dec 31, 2011	12	0.0011 mg/l	DS000	Accepted
Copper	Jan 1, 2008 – Dec 31, 2008	10	0.301 mg/l	DS000	Accepted
Lead	Jan 1, 2008 – Dec 31, 2008	10	0.0019 mg/l	DS000	Accepted
Copper	Jan 1, 2007 – Dec 31, 2007	11	0.2242 mg/l	DS000	Accepted
Lead	Jan 1, 2007 – Dec 31, 2007	11	0.0015 mg/l	DS000	Accepted
Copper	Jan 1, 2006 – Dec 31, 2006	11	0.1221 mg/l	DS000	Accepted
Lead	Jan 1, 2006 – Dec 31, 2006	11	0.0016 mg/l	DS000	Accepted
Copper	Jan 1, 2004 – Dec 31, 2004	10	0.0668 mg/l	DS000	Accepted
Lead	Jan 1, 2004 – Dec 31, 2004	10	0.0014 mg/l	DS000	Accepted
Copper	Jan 1, 2001 – Dec 31, 2001	5	0.149 mg/l	DS000	Accepted
Lead	Jan 1, 2001 – Dec 31, 2001	5	0.003 mg/l	DS000	Accepted
Copper	Jan 1, 1998 – Dec 31, 1998	5	0.133 mg/l	DS000	Accepted
Lead	Jan 1, 1998 – Dec 31, 1998	5	0.005 mg/l	DS000	Accepted
Copper	Jul 1, 1996 – Dec 31, 1996	5	0.093 mg/l	DS000	Accepted
Lead	Jul 1, 1996 – Dec 31, 1996	5	0.002 mg/l	DS000	Accepted
Copper	Jan 1, 1996 – Jun 30, 1996	10	0.112 mg/l	DS000	Accepted
Lead	Jan 1, 1996 – Jun 30, 1996	10	0.001 mg/l	DS000	Accepted
Copper	Jul 1, 1995 – Dec 31, 1995	10	0.074 mg/l	DS000	Accepted
Lead	Jul 1, 1995 – Dec 31, 1995	10	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.