Lead and copper

MS0080002 , Town of Carrollton

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 Carrollton, 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, 2023 – Dec 31, 2025	10	0.499 mg/l	DS000	Accepted
Lead	Jan 1, 2023 – Dec 31, 2025	10	0.0022 mg/l	DS000	Accepted
Copper	Jan 1, 2020 – Dec 31, 2022	10	0.646 mg/l	DS000	Accepted
Lead	Jan 1, 2020 – Dec 31, 2022	10	0.0005 mg/l	DS000	Accepted
Copper	Jan 1, 2017 – Dec 31, 2019	10	0.5222 mg/l	DS000	Accepted
Lead	Jan 1, 2017 – Dec 31, 2019	10	0.0018 mg/l	DS000	Accepted
Copper	Jan 1, 2015 – Dec 31, 2017	10	0.3353 mg/l	DS000	Accepted
Lead	Jan 1, 2015 – Dec 31, 2017	10	0.0011 mg/l	DS000	Accepted
Copper	Jan 1, 2012 – Dec 31, 2014	10	0.6748 mg/l	DS000	Accepted
Lead	Jan 1, 2012 – Dec 31, 2014	10	0.0015 mg/l	DS000	Accepted
Copper	Jan 1, 2009 – Dec 31, 2011	11	0.6858 mg/l	DS000	Accepted
Lead	Jan 1, 2009 – Dec 31, 2011	11	0.003 mg/l	DS000	Accepted
Copper	Jan 1, 2006 – Dec 31, 2008	10	0.3068 mg/l	DS000	Accepted
Lead	Jan 1, 2006 – Dec 31, 2008	10	0.0022 mg/l	DS000	Accepted
Copper	Jan 1, 2003 – Dec 31, 2005	12	0.7697 mg/l	DS000	Accepted
Lead	Jan 1, 2003 – Dec 31, 2005	12	0.0016 mg/l	DS000	Accepted
Copper	Jan 1, 2000 – Dec 31, 2002	10	0.128 mg/l	DS000	Accepted
Lead	Jan 1, 2000 – Dec 31, 2002	10	0.006 mg/l	DS000	Accepted
Copper	Jan 1, 1997 – Dec 31, 1999	10	0.677 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	0.603 mg/l	DS000	Accepted
Lead	Jan 1, 1996 – Dec 31, 1996	10	0.003 mg/l	DS000	Accepted
Copper	Jan 1, 1995 – Dec 31, 1995	11	0.414 mg/l	DS000	Accepted
Lead	Jan 1, 1995 – Dec 31, 1995	11	0.003 mg/l	DS000	Accepted
Copper	Jul 1, 1994 – Dec 31, 1994	20	1.039 mg/l	DS000	Accepted
Lead	Jul 1, 1994 – Dec 31, 1994	20	0.003 mg/l	DS000	Accepted
Copper	Jan 1, 1994 – Jun 30, 1994	20	0.632 mg/l	DS000	Accepted
Lead	Jan 1, 1994 – Jun 30, 1994	20	0.003 mg/l	DS000	Accepted
Copper	Jul 1, 1993 – Dec 31, 1993	20	1.751 mg/l	DS000	Accepted
Lead	Jul 1, 1993 – Dec 31, 1993	20	0.006 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.