Lead and copper

MS0260043 , Harland Creek W/A-Horseshoe LK

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 Harland Creek W/A-Horseshoe LK, 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, 2022 – Dec 31, 2024	5	0.132 mg/l	DS000	Accepted
Lead	Jan 1, 2022 – Dec 31, 2024	5	0.0035 mg/l	DS000	Accepted
Copper	Jan 1, 2019 – Dec 31, 2021	5	0.072 mg/l	DS000	Accepted
Lead	Jan 1, 2019 – Dec 31, 2021	5	0.003 mg/l	DS000	Accepted
Copper	Jan 1, 2016 – Dec 31, 2018	5	0.098 mg/l	DS000	Accepted
Lead	Jan 1, 2016 – Dec 31, 2018	5	0.0049 mg/l	DS000	Accepted
Copper	Jan 1, 2013 – Dec 31, 2015	5	0.0263 mg/l	DS000	Accepted
Lead	Jan 1, 2013 – Dec 31, 2015	5	0.003 mg/l	DS000	Accepted
Copper	Jan 1, 2012 – Dec 31, 2012	6	0.1976 mg/l	DS000	Accepted
Lead	Jan 1, 2012 – Dec 31, 2012	6	0 mg/l	DS000	Accepted
Copper	Jan 1, 2011 – Dec 31, 2011	6	0.1365 mg/l	DS000	Accepted
Lead	Jan 1, 2011 – Dec 31, 2011	6	0.0017 mg/l	DS000	Accepted
Copper	Jan 1, 2009 – Jun 30, 2009	10	0.327 mg/l	DS000	Accepted
Lead	Jan 1, 2009 – Jun 30, 2009	10	0.0022 mg/l	DS000	Accepted
Copper	Jul 1, 2008 – Dec 31, 2008	10	0.0939 mg/l	DS000	Accepted
Lead	Jul 1, 2008 – Dec 31, 2008	10	0 mg/l	DS000	Accepted
Copper	Jan 1, 2007 – Dec 31, 2007	10	0.1873 mg/l	DS000	Accepted
Lead	Jan 1, 2007 – Dec 31, 2007	10	0.002 mg/l	DS000	Accepted
Copper	Jan 1, 2006 – Dec 31, 2006	6	0.1096 mg/l	DS000	Accepted
Lead	Jan 1, 2006 – Dec 31, 2006	6	0.0022 mg/l	DS000	Accepted
Copper	Jul 1, 2005 – Dec 31, 2005	10	0.1634 mg/l	DS000	Accepted
Lead	Jul 1, 2005 – Dec 31, 2005	10	0.0039 mg/l	DS000	Accepted
Copper	Jul 1, 2004 – Dec 31, 2004	9	0.0592 mg/l	DS000	Accepted
Lead	Jul 1, 2004 – Dec 31, 2004	9	0.0017 mg/l	DS000	Accepted
Copper	Jul 1, 2003 – Dec 31, 2003	10	0.14 mg/l	DS000	Accepted
Lead	Jul 1, 2003 – Dec 31, 2003	10	0.004 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.