Lead and copper

MS0620009 , City of Morton

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 City of Morton, 28 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	20	0.0196 mg/l	DS000	Accepted
Lead	Jan 1, 2023 – Dec 31, 2025	20	0.0005 mg/l	DS000	Accepted
Copper	Jan 1, 2020 – Dec 31, 2022	20	0.382 mg/l	DS000	Accepted
Lead	Jan 1, 2020 – Dec 31, 2022	20	0.0019 mg/l	DS000	Accepted
Copper	Jan 1, 2017 – Dec 31, 2019	14	0.4379 mg/l	DS000	Accepted
Lead	Jan 1, 2017 – Dec 31, 2019	14	0.0017 mg/l	DS000	Accepted
Copper	Jan 1, 2014 – Dec 31, 2016	20	0.3915 mg/l	DS000	Accepted
Lead	Jan 1, 2014 – Dec 31, 2016	20	0.0015 mg/l	DS000	Accepted
Copper	Jan 1, 2011 – Dec 31, 2013	22	0.4783 mg/l	DS000	Accepted
Lead	Jan 1, 2011 – Dec 31, 2013	22	0.0025 mg/l	DS000	Accepted
Copper	Jan 1, 2008 – Dec 31, 2010	24	0.2396 mg/l	DS000	Accepted
Lead	Jan 1, 2008 – Dec 31, 2010	24	0.0019 mg/l	DS000	Accepted
Copper	Jan 1, 2005 – Dec 31, 2007	22	0.2036 mg/l	DS000	Accepted
Lead	Jan 1, 2005 – Dec 31, 2007	22	0.0029 mg/l	DS000	Accepted
Copper	Jan 1, 2002 – Dec 31, 2004	20	0.3375 mg/l	DS000	Accepted
Lead	Jan 1, 2002 – Dec 31, 2004	20	0.0028 mg/l	DS000	Accepted
Copper	Jan 1, 1999 – Dec 31, 2001	6	0.623 mg/l	DS000	Accepted
Lead	Jan 1, 1999 – Dec 31, 2001	6	0.005 mg/l	DS000	Accepted
Copper	Jan 1, 1996 – Dec 31, 1998	20	0.99 mg/l	DS000	Accepted
Lead	Jan 1, 1996 – Dec 31, 1998	20	0.002 mg/l	DS000	Accepted
Copper	Jan 1, 1995 – Dec 31, 1995	20	1.121 mg/l	DS000	Accepted
Lead	Jan 1, 1995 – Dec 31, 1995	20	0.004 mg/l	DS000	Accepted
Copper	Jan 1, 1994 – Dec 31, 1994	20	0.833 mg/l	DS000	Accepted
Lead	Jan 1, 1994 – Dec 31, 1994	20	0.004 mg/l	DS000	Accepted
Copper	Jan 1, 1993 – Jun 30, 1993	42	0.837 mg/l	DS000	Accepted
Lead	Jan 1, 1993 – Jun 30, 1993	42	0.002 mg/l	DS000	Accepted
Copper	Jul 1, 1992 – Dec 31, 1992	40	0.91 mg/l	DS000	Accepted
Lead	Jul 1, 1992 – Dec 31, 1992	40	0.003 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.