Lead and copper

MS0570015 , Magnolia Rural Water Assn

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 Magnolia Rural Water Assn, 40 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, 2024 – Jun 30, 2024	20	0.0057 mg/l	DS000	Accepted
Lead	Jan 1, 2024 – Jun 30, 2024	20	0 mg/l	DS000	Accepted
Copper	Jul 1, 2023 – Dec 31, 2023	20	0.992 mg/l	DS000	Accepted
Lead	Jul 1, 2023 – Dec 31, 2023	20	0.0017 mg/l	DS000	Accepted
Copper	Jan 1, 2022 – Jun 30, 2022	20	1.82 mg/l	DS000	Accepted
Lead	Jan 1, 2022 – Jun 30, 2022	20	0.0039 mg/l	DS000	Accepted
Copper	Jul 1, 2021 – Dec 31, 2021	19	2.87 mg/l	DS000	Accepted
Lead	Jul 1, 2021 – Dec 31, 2021	19	0.0067 mg/l	DS000	Accepted
Copper	Jan 1, 2016 – Dec 31, 2018	20	1.8554 mg/l	DS000	Accepted
Lead	Jan 1, 2016 – Dec 31, 2018	20	0.0062 mg/l	DS000	Accepted
Copper	Jan 1, 2013 – Dec 31, 2015	10	1.0784 mg/l	DS000	Accepted
Lead	Jan 1, 2013 – Dec 31, 2015	10	0.0092 mg/l	DS000	Accepted
Copper	Jan 1, 2012 – Dec 31, 2012	10	0.8384 mg/l	DS000	Accepted
Lead	Jan 1, 2012 – Dec 31, 2012	10	0.0106 mg/l	DS000	Accepted
Copper	Jan 1, 2011 – Dec 31, 2011	10	0.5117 mg/l	DS000	Accepted
Lead	Jan 1, 2011 – Dec 31, 2011	10	0.0017 mg/l	DS000	Accepted
Copper	Jul 1, 2009 – Dec 31, 2009	20	0.2746 mg/l	DS000	Accepted
Lead	Jul 1, 2009 – Dec 31, 2009	20	0.0103 mg/l	DS000	Accepted
Copper	Jan 1, 2009 – Jun 30, 2009	20	0.6486 mg/l	DS000	Accepted
Lead	Jan 1, 2009 – Jun 30, 2009	20	0.0009 mg/l	DS000	Accepted
Copper	Jul 1, 2008 – Dec 31, 2008	20	0.1762 mg/l	DS000	Accepted
Lead	Jul 1, 2008 – Dec 31, 2008	20	0.0269 mg/l	DS000	Accepted
Copper	Jul 1, 2004 – Dec 31, 2004	23	0.9103 mg/l	DS000	Accepted
Lead	Jul 1, 2004 – Dec 31, 2004	23	0.0028 mg/l	DS000	Accepted
Copper	Jul 1, 2003 – Dec 31, 2003	20	2.024 mg/l	DS000	Accepted
Lead	Jul 1, 2003 – Dec 31, 2003	20	0.01 mg/l	DS000	Accepted
Copper	Jan 1, 2003 – Jun 30, 2003	20	1.288 mg/l	DS000	Accepted
Lead	Jan 1, 2003 – Jun 30, 2003	20	0.01 mg/l	DS000	Accepted
Copper	Jan 1, 2000 – Dec 31, 2002	30	0.632 mg/l	DS000	Accepted
Lead	Jan 1, 2000 – Dec 31, 2002	30	0.019 mg/l	DS000	Accepted
Copper	Jan 1, 1997 – Dec 31, 1999	10	0.288 mg/l	DS000	Accepted
Lead	Jan 1, 1997 – Dec 31, 1999	10	0.012 mg/l	DS000	Accepted
Copper	Jan 1, 1996 – Dec 31, 1996	10	0.424 mg/l	DS000	Accepted
Lead	Jan 1, 1996 – Dec 31, 1996	10	0.004 mg/l	DS000	Accepted
Copper	Jan 1, 1995 – Dec 31, 1995	10	0 mg/l	DS000	Accepted
Lead	Jan 1, 1995 – Dec 31, 1995	10	0.002 mg/l	DS000	Accepted
Copper	Jan 1, 1994 – Jun 30, 1994	21	0 mg/l	DS000	Accepted
Lead	Jan 1, 1994 – Jun 30, 1994	21	0.001 mg/l	DS000	Accepted
Copper	Jul 1, 1993 – Dec 31, 1993	22	0.331 mg/l	DS000	Accepted
Lead	Jul 1, 1993 – Dec 31, 1993	22	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.