Lead and copper

MS0580003 , Town of Ecru

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 Town of Ecru, 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, 2025 – Dec 31, 2025	10	0.377 mg/l	DS000	Accepted
Lead	Jan 1, 2025 – Dec 31, 2025	10	0.0009 mg/l	DS000	Accepted
Copper	Jan 1, 2024 – Dec 31, 2024	10	0.447 mg/l	DS000	Accepted
Lead	Jan 1, 2024 – Dec 31, 2024	10	0.0051 mg/l	DS000	Accepted
Copper	Jan 1, 2023 – Dec 31, 2023	10	0.49 mg/l	DS000	Accepted
Lead	Jan 1, 2023 – Dec 31, 2023	10	0 mg/l	DS000	Accepted
Copper	Jan 1, 2022 – Dec 31, 2022	10	0.273 mg/l	DS000	Accepted
Lead	Jan 1, 2022 – Dec 31, 2022	10	0.0007 mg/l	DS000	Accepted
Copper	Jul 1, 2021 – Dec 31, 2021	20	0.656 mg/l	DS000	Accepted
Lead	Jul 1, 2021 – Dec 31, 2021	20	0.0011 mg/l	DS000	Accepted
Copper	Jan 1, 2021 – Jun 30, 2021	20	0.0447 mg/l	DS000	Accepted
Lead	Jan 1, 2021 – Jun 30, 2021	20	0 mg/l	DS000	Accepted
Copper	Jan 1, 2020 – Jun 30, 2020	21	0.0767 mg/l	DS000	Accepted
Lead	Jan 1, 2020 – Jun 30, 2020	21	0 mg/l	DS000	Accepted
Copper	Jan 1, 2014 – Dec 31, 2016	10	0.3215 mg/l	DS000	Accepted
Lead	Jan 1, 2014 – Dec 31, 2016	10	0.003 mg/l	DS000	Accepted
Copper	Jan 1, 2012 – Dec 31, 2014	10	0.3215 mg/l	DS000	Accepted
Lead	Jan 1, 2012 – Dec 31, 2014	10	0.003 mg/l	DS000	Accepted
Copper	Jan 1, 2011 – Dec 31, 2013	10	0.1172 mg/l	DS000	Accepted
Lead	Jan 1, 2011 – Dec 31, 2013	10	0.0017 mg/l	DS000	Accepted
Copper	Jan 1, 2009 – Dec 31, 2011	10	0.1172 mg/l	DS000	Accepted
Lead	Jan 1, 2009 – Dec 31, 2011	10	0.0017 mg/l	DS000	Accepted
Copper	Jan 1, 2006 – Dec 31, 2008	10	0.0671 mg/l	DS000	Accepted
Lead	Jan 1, 2006 – Dec 31, 2008	10	0.0015 mg/l	DS000	Accepted
Copper	Jan 1, 2000 – Dec 31, 2002	10	0.345 mg/l	DS000	Accepted
Lead	Jan 1, 2000 – Dec 31, 2002	10	0.001 mg/l	DS000	Accepted
Copper	Jan 1, 1996 – Dec 31, 1996	10	0.235 mg/l	DS000	Accepted
Lead	Jan 1, 1996 – Dec 31, 1996	10	0.004 mg/l	DS000	Accepted
Copper	Jan 1, 1995 – Dec 31, 1995	10	0.222 mg/l	DS000	Accepted
Lead	Jan 1, 1995 – Dec 31, 1995	10	0 mg/l	DS000	Accepted
Copper	Jan 1, 1994 – Jun 30, 1994	20	0.372 mg/l	DS000	Accepted
Lead	Jan 1, 1994 – Jun 30, 1994	20	0.002 mg/l	DS000	Accepted
Copper	Jul 1, 1993 – Dec 31, 1993	20	0.254 mg/l	DS000	Accepted
Lead	Jul 1, 1993 – Dec 31, 1993	20	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.