Lead and copper

MS0670011 , City of Ruleville

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 Ruleville, 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	10	0.196 mg/l	DS000	Accepted
Lead	Jan 1, 2023 – Dec 31, 2025	10	0.0013 mg/l	DS000	Accepted
Copper	Jan 1, 2020 – Dec 31, 2022	10	0.394 mg/l	DS000	Accepted
Lead	Jan 1, 2020 – Dec 31, 2022	10	0.001 mg/l	DS000	Accepted
Copper	Jan 1, 2017 – Dec 31, 2019	10	0.2551 mg/l	DS000	Accepted
Lead	Jan 1, 2017 – Dec 31, 2019	10	0.0025 mg/l	DS000	Accepted
Copper	Jan 1, 2014 – Dec 31, 2016	11	0.3789 mg/l	DS000	Accepted
Lead	Jan 1, 2014 – Dec 31, 2016	11	0.0022 mg/l	DS000	Accepted
Copper	Jan 1, 2011 – Dec 31, 2013	11	0.2679 mg/l	DS000	Accepted
Lead	Jan 1, 2011 – Dec 31, 2013	11	0.0009 mg/l	DS000	Accepted
Copper	Jan 1, 2008 – Dec 31, 2010	23	0.3431 mg/l	DS000	Accepted
Lead	Jan 1, 2008 – Dec 31, 2010	23	0.0018 mg/l	DS000	Accepted
Copper	Jan 1, 2005 – Dec 31, 2007	20	0.5612 mg/l	DS000	Accepted
Lead	Jan 1, 2005 – Dec 31, 2007	20	0.0014 mg/l	DS000	Accepted
Copper	Jan 1, 2002 – Dec 31, 2004	20	0.3795 mg/l	DS000	Accepted
Lead	Jan 1, 2002 – Dec 31, 2004	20	0.0011 mg/l	DS000	Accepted
Copper	Jan 1, 1999 – Dec 31, 2001	20	0.562 mg/l	DS000	Accepted
Lead	Jan 1, 1999 – Dec 31, 2001	20	0.002 mg/l	DS000	Accepted
Copper	Jan 1, 1996 – Dec 31, 1998	10	0.241 mg/l	DS000	Accepted
Lead	Jan 1, 1996 – Dec 31, 1998	10	0.004 mg/l	DS000	Accepted
Copper	Jan 1, 1995 – Dec 31, 1995	10	0.352 mg/l	DS000	Accepted
Lead	Jan 1, 1995 – Dec 31, 1995	10	0 mg/l	DS000	Accepted
Copper	Jan 1, 1994 – Jun 30, 1994	22	0.362 mg/l	DS000	Accepted
Lead	Jan 1, 1994 – Jun 30, 1994	22	0.005 mg/l	DS000	Accepted
Copper	Jul 1, 1992 – Dec 31, 1992	40	0.39 mg/l	DS000	Accepted
Lead	Jul 1, 1992 – Dec 31, 1992	40	0.004 mg/l	DS000	Accepted
Copper	Jan 1, 1992 – Jun 30, 1992	42	0.22 mg/l	DS000	Accepted
Lead	Jan 1, 1992 – Jun 30, 1992	42	0.005 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.