Lead and copper

MS0160001 , Cold Springs 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 Cold Springs Water Association, 24 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	0.0973 mg/l	DS000	Accepted
Lead	Jan 1, 2023 – Dec 31, 2025	10	0.0014 mg/l	DS000	Accepted
Copper	Jan 1, 2020 – Dec 31, 2022	10	0.206 mg/l	DS000	Accepted
Lead	Jan 1, 2020 – Dec 31, 2022	10	0.0011 mg/l	DS000	Accepted
Copper	Jan 1, 2017 – Dec 31, 2019	9	0.247 mg/l	DS000	Accepted
Lead	Jan 1, 2017 – Dec 31, 2019	9	0.0017 mg/l	DS000	Accepted
Copper	Jan 1, 2015 – Dec 31, 2017	10	0.1806 mg/l	DS000	Accepted
Lead	Jan 1, 2015 – Dec 31, 2017	10	0.0014 mg/l	DS000	Accepted
Copper	Jan 1, 2012 – Dec 31, 2014	10	0.3413 mg/l	DS000	Accepted
Lead	Jan 1, 2012 – Dec 31, 2014	10	0.0075 mg/l	DS000	Accepted
Copper	Jan 1, 2009 – Dec 31, 2011	11	0.2745 mg/l	DS000	Accepted
Lead	Jan 1, 2009 – Dec 31, 2011	11	0.0054 mg/l	DS000	Accepted
Copper	Jan 1, 2006 – Dec 31, 2008	10	0.3272 mg/l	DS000	Accepted
Lead	Jan 1, 2006 – Dec 31, 2008	10	0.0063 mg/l	DS000	Accepted
Copper	Jan 1, 2000 – Dec 31, 2002	5	0.401 mg/l	DS000	Accepted
Lead	Jan 1, 2000 – Dec 31, 2002	5	0.013 mg/l	DS000	Accepted
Copper	Jan 1, 1996 – Dec 31, 1996	5	0.173 mg/l	DS000	Accepted
Lead	Jan 1, 1996 – Dec 31, 1996	5	0.004 mg/l	DS000	Accepted
Copper	Jan 1, 1995 – Dec 31, 1995	5	0.363 mg/l	DS000	Accepted
Lead	Jan 1, 1995 – Dec 31, 1995	5	0.007 mg/l	DS000	Accepted
Copper	Jan 1, 1994 – Jun 30, 1994	10	0.388 mg/l	DS000	Accepted
Lead	Jan 1, 1994 – Jun 30, 1994	10	0.005 mg/l	DS000	Accepted
Copper	Jul 1, 1993 – Dec 31, 1993	12	0.445 mg/l	DS000	Accepted
Lead	Jul 1, 1993 – Dec 31, 1993	12	0.013 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.