Lead and copper

MS0360008 , Hopewell 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 Hopewell Water Association, 34 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	10	0.173 mg/l	DS000	Accepted
Lead	Jan 1, 2022 – Dec 31, 2024	10	0.0006 mg/l	DS000	Accepted
Copper	Jan 1, 2019 – Dec 31, 2021	10	0.0191 mg/l	DS000	Accepted
Lead	Jan 1, 2019 – Dec 31, 2021	10	0.0009 mg/l	DS000	Accepted
Copper	Jan 1, 2016 – Dec 31, 2018	10	0.1965 mg/l	DS000	Accepted
Lead	Jan 1, 2016 – Dec 31, 2018	10	0 mg/l	DS000	Accepted
Copper	Jan 1, 2013 – Dec 31, 2015	10	0.0578 mg/l	DS000	Accepted
Lead	Jan 1, 2013 – Dec 31, 2015	10	0 mg/l	DS000	Accepted
Copper	Jan 1, 2010 – Dec 31, 2012	10	0.1908 mg/l	DS000	Accepted
Lead	Jan 1, 2010 – Dec 31, 2012	10	0.005 mg/l	DS000	Accepted
Copper	Jan 1, 2009 – Dec 31, 2009	10	0.1662 mg/l	DS000	Accepted
Lead	Jan 1, 2009 – Dec 31, 2009	10	0.0034 mg/l	DS000	Accepted
Copper	Jul 1, 2008 – Dec 31, 2008	20	0.2383 mg/l	DS000	Accepted
Lead	Jul 1, 2008 – Dec 31, 2008	20	0.008 mg/l	DS000	Accepted
Copper	Jul 1, 2007 – Dec 31, 2007	20	0.1826 mg/l	DS000	Accepted
Lead	Jul 1, 2007 – Dec 31, 2007	20	0.0079 mg/l	DS000	Accepted
Copper	Jan 1, 2007 – Jun 30, 2007	20	0.0464 mg/l	DS000	Accepted
Lead	Jan 1, 2007 – Jun 30, 2007	20	0.0042 mg/l	DS000	Accepted
Copper	Jul 1, 2004 – Dec 31, 2004	40	0.1892 mg/l	DS000	Accepted
Lead	Jul 1, 2004 – Dec 31, 2004	40	0.0094 mg/l	DS000	Accepted
Copper	Jul 1, 2001 – Dec 31, 2001	10	0.935 mg/l	DS000	Accepted
Lead	Jul 1, 2001 – Dec 31, 2001	10	0.001 mg/l	DS000	Accepted
Copper	Jan 1, 1999 – Jun 30, 1999	10	0.199 mg/l	DS000	Accepted
Lead	Jan 1, 1999 – Jun 30, 1999	10	0.009 mg/l	DS000	Accepted
Copper	Jul 1, 1996 – Dec 31, 1996	10	0 mg/l	DS000	Accepted
Lead	Jul 1, 1996 – Dec 31, 1996	10	0.008 mg/l	DS000	Accepted
Copper	Jan 1, 1996 – Jun 30, 1996	10	0.071 mg/l	DS000	Accepted
Lead	Jan 1, 1996 – Jun 30, 1996	10	0.044 mg/l	DS000	Accepted
Copper	Jan 1, 1995 – Dec 31, 1995	10	0.089 mg/l	DS000	Accepted
Lead	Jan 1, 1995 – Dec 31, 1995	10	0.03 mg/l	DS000	Accepted
Copper	Jan 1, 1994 – Jun 30, 1994	20	0 mg/l	DS000	Accepted
Lead	Jan 1, 1994 – Jun 30, 1994	20	0.009 mg/l	DS000	Accepted
Copper	Jul 1, 1993 – Dec 31, 1993	20	0 mg/l	DS000	Accepted
Lead	Jul 1, 1993 – Dec 31, 1993	20	0.008 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.