Lead and copper

MS0460007 , Highway 98 East Water Assn.

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 Highway 98 East Water Assn., 26 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, 2021 – Dec 31, 2023	10	0.302 mg/l	DS000	Accepted
Lead	Jan 1, 2021 – Dec 31, 2023	10	0.0005 mg/l	DS000	Accepted
Copper	Jan 1, 2018 – Dec 31, 2020	10	0.369 mg/l	DS000	Accepted
Lead	Jan 1, 2018 – Dec 31, 2020	10	0 mg/l	DS000	Accepted
Copper	Jan 1, 2015 – Dec 31, 2017	10	0.4595 mg/l	DS000	Accepted
Lead	Jan 1, 2015 – Dec 31, 2017	10	0 mg/l	DS000	Accepted
Copper	Jan 1, 2012 – Dec 31, 2014	12	0.3916 mg/l	DS000	Accepted
Lead	Jan 1, 2012 – Dec 31, 2014	12	0.0004 mg/l	DS000	Accepted
Copper	Jan 1, 2009 – Dec 31, 2011	10	0.4246 mg/l	DS000	Accepted
Lead	Jan 1, 2009 – Dec 31, 2011	10	0.0013 mg/l	DS000	Accepted
Copper	Jan 1, 2006 – Dec 31, 2008	10	0.4461 mg/l	DS000	Accepted
Lead	Jan 1, 2006 – Dec 31, 2008	10	0 mg/l	DS000	Accepted
Copper	Jan 1, 2003 – Dec 31, 2005	10	0.2329 mg/l	DS000	Accepted
Lead	Jan 1, 2003 – Dec 31, 2005	10	0.0009 mg/l	DS000	Accepted
Copper	Jan 1, 2000 – Dec 31, 2002	10	0.431 mg/l	DS000	Accepted
Lead	Jan 1, 2000 – Dec 31, 2002	10	0.002 mg/l	DS000	Accepted
Copper	Jan 1, 1997 – Dec 31, 1999	10	0.303 mg/l	DS000	Accepted
Lead	Jan 1, 1997 – Dec 31, 1999	10	0.003 mg/l	DS000	Accepted
Copper	Jan 1, 1996 – Dec 31, 1996	10	0.435 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	0.367 mg/l	DS000	Accepted
Lead	Jan 1, 1995 – Dec 31, 1995	10	0.004 mg/l	DS000	Accepted
Copper	Jan 1, 1994 – Jun 30, 1994	22	0.372 mg/l	DS000	Accepted
Lead	Jan 1, 1994 – Jun 30, 1994	22	0.015 mg/l	DS000	Accepted
Copper	Jul 1, 1993 – Dec 31, 1993	23	0.576 mg/l	DS000	Accepted
Lead	Jul 1, 1993 – Dec 31, 1993	23	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.