Lead and copper

MS0060016 , City of Rosedale

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 Rosedale, 26 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, 2023 – Dec 31, 2025	10	0.274 mg/l	DS000	Accepted
Lead	Jan 1, 2023 – Dec 31, 2025	10	0.00238 mg/l	DS000	Accepted
Copper	Jan 1, 2020 – Dec 31, 2022	10	0.49 mg/l	DS000	Accepted
Lead	Jan 1, 2020 – Dec 31, 2022	10	0.0047 mg/l	DS000	Accepted
Copper	Jan 1, 2017 – Dec 31, 2019	9	0.1528 mg/l	DS000	Accepted
Lead	Jan 1, 2017 – Dec 31, 2019	9	0.0036 mg/l	DS000	Accepted
Copper	Jan 1, 2015 – Dec 31, 2017	10	0.0587 mg/l	DS000	Accepted
Lead	Jan 1, 2015 – Dec 31, 2017	10	0 mg/l	DS000	Accepted
Copper	Jan 1, 2012 – Dec 31, 2014	10	0.2952 mg/l	DS000	Accepted
Lead	Jan 1, 2012 – Dec 31, 2014	10	0.0028 mg/l	DS000	Accepted
Copper	Jan 1, 2009 – Dec 31, 2011	10	0.1933 mg/l	DS000	Accepted
Lead	Jan 1, 2009 – Dec 31, 2011	10	0.0029 mg/l	DS000	Accepted
Copper	Jan 1, 2006 – Dec 31, 2008	10	0.4639 mg/l	DS000	Accepted
Lead	Jan 1, 2006 – Dec 31, 2008	10	0.0057 mg/l	DS000	Accepted
Copper	Jan 1, 2000 – Dec 31, 2002	10	0.085 mg/l	DS000	Accepted
Lead	Jan 1, 2000 – Dec 31, 2002	10	0.005 mg/l	DS000	Accepted
Copper	Jan 1, 1997 – Dec 31, 1999	10	0.407 mg/l	DS000	Accepted
Lead	Jan 1, 1997 – Dec 31, 1999	10	0.002 mg/l	DS000	Accepted
Copper	Jan 1, 1996 – Dec 31, 1996	10	0 mg/l	DS000	Accepted
Lead	Jan 1, 1996 – Dec 31, 1996	10	0.005 mg/l	DS000	Accepted
Copper	Jan 1, 1995 – Dec 31, 1995	10	0.333 mg/l	DS000	Accepted
Lead	Jan 1, 1995 – Dec 31, 1995	10	0.003 mg/l	DS000	Accepted
Copper	Jan 1, 1994 – Jun 30, 1994	22	0.494 mg/l	DS000	Accepted
Lead	Jan 1, 1994 – Jun 30, 1994	22	0.014 mg/l	DS000	Accepted
Copper	Jul 1, 1993 – Dec 31, 1993	22	0.36 mg/l	DS000	Accepted
Lead	Jul 1, 1993 – Dec 31, 1993	22	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.