Lead and copper

MS0110003 , Hermanville 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 Hermanville Water Association, 30 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, 2025 – Dec 31, 2025	10	0.124 mg/l	DS000	Accepted
Lead	Jan 1, 2025 – Dec 31, 2025	10	0.00128 mg/l	DS000	Accepted
Copper	Jan 1, 2022 – Jun 30, 2022	20	0.367 mg/l	DS000	Accepted
Lead	Jan 1, 2022 – Jun 30, 2022	20	0.001 mg/l	DS000	Accepted
Copper	Jul 1, 2021 – Dec 31, 2021	24	0.25 mg/l	DS000	Accepted
Lead	Jul 1, 2021 – Dec 31, 2021	24	0.002 mg/l	DS000	Accepted
Copper	Jan 1, 2015 – Dec 31, 2017	10	0.018 mg/l	DS000	Accepted
Lead	Jan 1, 2015 – Dec 31, 2017	10	0 mg/l	DS000	Accepted
Copper	Jan 1, 2014 – Dec 31, 2016	22	0.228 mg/l	DS000	Accepted
Lead	Jan 1, 2014 – Dec 31, 2016	22	0.0015 mg/l	DS000	Accepted
Copper	Jan 1, 2012 – Dec 31, 2014	12	0.245 mg/l	DS000	Accepted
Lead	Jan 1, 2012 – Dec 31, 2014	12	0.0015 mg/l	DS000	Accepted
Copper	Jan 1, 2011 – Dec 31, 2013	10	0.0267 mg/l	DS000	Accepted
Lead	Jan 1, 2011 – Dec 31, 2013	10	0.0015 mg/l	DS000	Accepted
Copper	Jan 1, 2009 – Dec 31, 2011	10	0.0267 mg/l	DS000	Accepted
Lead	Jan 1, 2009 – Dec 31, 2011	10	0.0015 mg/l	DS000	Accepted
Copper	Jan 1, 2006 – Dec 31, 2008	10	0.0067 mg/l	DS000	Accepted
Lead	Jan 1, 2006 – Dec 31, 2008	10	0.0007 mg/l	DS000	Accepted
Copper	Jan 1, 2000 – Dec 31, 2002	10	0.146 mg/l	DS000	Accepted
Lead	Jan 1, 2000 – Dec 31, 2002	10	0.002 mg/l	DS000	Accepted
Copper	Jan 1, 1997 – Dec 31, 1999	10	0.712 mg/l	DS000	Accepted
Lead	Jan 1, 1997 – Dec 31, 1999	10	0.001 mg/l	DS000	Accepted
Copper	Jan 1, 1996 – Dec 31, 1996	10	0.454 mg/l	DS000	Accepted
Lead	Jan 1, 1996 – Dec 31, 1996	10	0.002 mg/l	DS000	Accepted
Copper	Jan 1, 1995 – Dec 31, 1995	10	0.23 mg/l	DS000	Accepted
Lead	Jan 1, 1995 – Dec 31, 1995	10	0.01 mg/l	DS000	Accepted
Copper	Jan 1, 1994 – Jun 30, 1994	22	0.311 mg/l	DS000	Accepted
Lead	Jan 1, 1994 – Jun 30, 1994	22	0.004 mg/l	DS000	Accepted
Copper	Jul 1, 1993 – Dec 31, 1993	22	0.322 mg/l	DS000	Accepted
Lead	Jul 1, 1993 – Dec 31, 1993	22	0.01 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.