Lead and copper

MS0240005 , City of Long Beach

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 City of Long Beach, 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, 2022 – Dec 31, 2024	30	0.0934 mg/l	DS000	Accepted
Lead	Jan 1, 2022 – Dec 31, 2024	30	0.0029 mg/l	DS000	Accepted
Copper	Jan 1, 2019 – Dec 31, 2021	30	0.0787 mg/l	DS000	Accepted
Lead	Jan 1, 2019 – Dec 31, 2021	30	0.0072 mg/l	DS000	Accepted
Copper	Jan 1, 2016 – Dec 31, 2018	32	0.1156 mg/l	DS000	Accepted
Lead	Jan 1, 2016 – Dec 31, 2018	32	0.0041 mg/l	DS000	Accepted
Copper	Jan 1, 2014 – Dec 31, 2016	35	0.0899 mg/l	DS000	Accepted
Lead	Jan 1, 2014 – Dec 31, 2016	35	0.0024 mg/l	DS000	Accepted
Copper	Jan 1, 2011 – Dec 31, 2013	36	0.0894 mg/l	DS000	Accepted
Lead	Jan 1, 2011 – Dec 31, 2013	36	0.0025 mg/l	DS000	Accepted
Copper	Jan 1, 2008 – Dec 31, 2010	33	0.1514 mg/l	DS000	Accepted
Lead	Jan 1, 2008 – Dec 31, 2010	33	0.0058 mg/l	DS000	Accepted
Copper	Jan 1, 2005 – Dec 31, 2007	31	0.1622 mg/l	DS000	Accepted
Lead	Jan 1, 2005 – Dec 31, 2007	31	0.0029 mg/l	DS000	Accepted
Copper	Jan 1, 2002 – Dec 31, 2004	29	0.1772 mg/l	DS000	Accepted
Lead	Jan 1, 2002 – Dec 31, 2004	29	0.0037 mg/l	DS000	Accepted
Copper	Jan 1, 1999 – Dec 31, 2001	20	0.122 mg/l	DS000	Accepted
Lead	Jan 1, 1999 – Dec 31, 2001	20	0.004 mg/l	DS000	Accepted
Copper	Jan 1, 1996 – Dec 31, 1998	20	0.137 mg/l	DS000	Accepted
Lead	Jan 1, 1996 – Dec 31, 1998	20	0.003 mg/l	DS000	Accepted
Copper	Jan 1, 1995 – Dec 31, 1995	20	0 mg/l	DS000	Accepted
Lead	Jan 1, 1995 – Dec 31, 1995	20	0.001 mg/l	DS000	Accepted
Copper	Jan 1, 1994 – Dec 31, 1994	20	0.093 mg/l	DS000	Accepted
Lead	Jan 1, 1994 – Dec 31, 1994	20	0.004 mg/l	DS000	Accepted
Copper	Jan 1, 1993 – Jun 30, 1993	41	0.118 mg/l	DS000	Accepted
Lead	Jan 1, 1993 – Jun 30, 1993	41	0.004 mg/l	DS000	Accepted
Copper	Jul 1, 1992 – Dec 31, 1992	37	0.145 mg/l	DS000	Accepted
Lead	Jul 1, 1992 – Dec 31, 1992	37	0.006 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.