Lead and copper

MS0140012 , Moore Bayou Water Association

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 Moore Bayou Water Association, 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	9	1.04 mg/l	DS000	Accepted
Lead	Jan 1, 2021 – Dec 31, 2023	9	0.0022 mg/l	DS000	Accepted
Copper	Jan 1, 2018 – Dec 31, 2020	9	0.2154 mg/l	DS000	Accepted
Lead	Jan 1, 2018 – Dec 31, 2020	9	0.0014 mg/l	DS000	Accepted
Copper	Jan 1, 2015 – Dec 31, 2017	6	0.1698 mg/l	DS000	Accepted
Lead	Jan 1, 2015 – Dec 31, 2017	6	0.0014 mg/l	DS000	Accepted
Copper	Jan 1, 2012 – Dec 31, 2014	10	0.1089 mg/l	DS000	Accepted
Lead	Jan 1, 2012 – Dec 31, 2014	10	0.0054 mg/l	DS000	Accepted
Copper	Jan 1, 2009 – Dec 31, 2011	10	0.0727 mg/l	DS000	Accepted
Lead	Jan 1, 2009 – Dec 31, 2011	10	0.002 mg/l	DS000	Accepted
Copper	Jan 1, 2006 – Dec 31, 2008	10	0.7792 mg/l	DS000	Accepted
Lead	Jan 1, 2006 – Dec 31, 2008	10	0.0044 mg/l	DS000	Accepted
Copper	Jan 1, 2004 – Dec 31, 2004	10	0.5824 mg/l	DS000	Accepted
Lead	Jan 1, 2004 – Dec 31, 2004	10	0.0023 mg/l	DS000	Accepted
Copper	Jan 1, 2003 – Dec 31, 2003	20	0.264 mg/l	DS000	Accepted
Lead	Jan 1, 2003 – Dec 31, 2003	20	0.006 mg/l	DS000	Accepted
Copper	Jan 1, 2000 – Dec 31, 2002	8	0.804 mg/l	DS000	Accepted
Lead	Jan 1, 2000 – Dec 31, 2002	8	0.003 mg/l	DS000	Accepted
Copper	Jan 1, 1997 – Dec 31, 1999	10	0.509 mg/l	DS000	Accepted
Lead	Jan 1, 1997 – Dec 31, 1999	10	0.01 mg/l	DS000	Accepted
Copper	Jan 1, 1996 – Dec 31, 1996	10	0.847 mg/l	DS000	Accepted
Lead	Jan 1, 1996 – Dec 31, 1996	10	0.009 mg/l	DS000	Accepted
Copper	Jan 1, 1995 – Dec 31, 1995	10	0.697 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	20	0.798 mg/l	DS000	Accepted
Lead	Jan 1, 1994 – Jun 30, 1994	20	0.002 mg/l	DS000	Accepted
Copper	Jul 1, 1993 – Dec 31, 1993	20	0.746 mg/l	DS000	Accepted
Lead	Jul 1, 1993 – Dec 31, 1993	20	0.001 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.