Lead and copper

MS0220013 , Poor House W/A #2

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 Poor House W/A #2, 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	0.469 mg/l	DS000	Accepted
Lead	Jan 1, 2023 – Dec 31, 2025	10	0.000637 mg/l	DS000	Accepted
Copper	Jan 1, 2020 – Dec 31, 2022	10	0.428 mg/l	DS000	Accepted
Lead	Jan 1, 2020 – Dec 31, 2022	10	0 mg/l	DS000	Accepted
Copper	Jan 1, 2017 – Dec 31, 2019	10	0.1905 mg/l	DS000	Accepted
Lead	Jan 1, 2017 – Dec 31, 2019	10	0.0007 mg/l	DS000	Accepted
Copper	Jan 1, 2015 – Dec 31, 2017	10	0.6349 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	0.7963 mg/l	DS000	Accepted
Lead	Jan 1, 2012 – Dec 31, 2014	10	0.0006 mg/l	DS000	Accepted
Copper	Jan 1, 2009 – Dec 31, 2011	12	0.6984 mg/l	DS000	Accepted
Lead	Jan 1, 2009 – Dec 31, 2011	12	0.005 mg/l	DS000	Accepted
Copper	Jan 1, 2006 – Dec 31, 2008	10	0.4357 mg/l	DS000	Accepted
Lead	Jan 1, 2006 – Dec 31, 2008	10	0.001 mg/l	DS000	Accepted
Copper	Jan 1, 2003 – Dec 31, 2005	10	0.692 mg/l	DS000	Accepted
Lead	Jan 1, 2003 – Dec 31, 2005	10	0.002 mg/l	DS000	Accepted
Copper	Jan 1, 2000 – Dec 31, 2002	34	0.928 mg/l	DS000	Accepted
Lead	Jan 1, 2000 – Dec 31, 2002	34	0.003 mg/l	DS000	Accepted
Copper	Jan 1, 1996 – Dec 31, 1996	5	0.49 mg/l	DS000	Accepted
Lead	Jan 1, 1996 – Dec 31, 1996	5	0.003 mg/l	DS000	Accepted
Copper	Jan 1, 1995 – Dec 31, 1995	5	0.277 mg/l	DS000	Accepted
Lead	Jan 1, 1995 – Dec 31, 1995	5	0 mg/l	DS000	Accepted
Copper	Jan 1, 1994 – Jun 30, 1994	10	0.912 mg/l	DS000	Accepted
Lead	Jan 1, 1994 – Jun 30, 1994	10	0.003 mg/l	DS000	Accepted
Copper	Jul 1, 1993 – Dec 31, 1993	12	0.626 mg/l	DS000	Accepted
Lead	Jul 1, 1993 – Dec 31, 1993	12	0.005 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.