Lead and copper

MS0340006 , Hatten 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 Hatten Water Assn, 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, 2022 – Dec 31, 2024	10	0.132 mg/l	DS000	Accepted
Lead	Jan 1, 2022 – Dec 31, 2024	10	0.0005 mg/l	DS000	Accepted
Copper	Jan 1, 2019 – Dec 31, 2021	10	0.208 mg/l	DS000	Accepted
Lead	Jan 1, 2019 – Dec 31, 2021	10	0.0019 mg/l	DS000	Accepted
Copper	Jan 1, 2016 – Dec 31, 2018	10	0.0674 mg/l	DS000	Accepted
Lead	Jan 1, 2016 – Dec 31, 2018	10	0.0006 mg/l	DS000	Accepted
Copper	Jan 1, 2014 – Dec 31, 2016	12	0.0934 mg/l	DS000	Accepted
Lead	Jan 1, 2014 – Dec 31, 2016	12	0.0011 mg/l	DS000	Accepted
Copper	Jan 1, 2011 – Dec 31, 2013	10	0.1128 mg/l	DS000	Accepted
Lead	Jan 1, 2011 – Dec 31, 2013	10	0.0009 mg/l	DS000	Accepted
Copper	Jan 1, 2008 – Dec 31, 2010	10	0.1304 mg/l	DS000	Accepted
Lead	Jan 1, 2008 – Dec 31, 2010	10	0.0036 mg/l	DS000	Accepted
Copper	Jan 1, 2007 – Dec 31, 2007	12	0.0633 mg/l	DS000	Accepted
Lead	Jan 1, 2007 – Dec 31, 2007	12	0.0038 mg/l	DS000	Accepted
Copper	Jan 1, 2006 – Dec 31, 2006	12	0.2075 mg/l	DS000	Accepted
Lead	Jan 1, 2006 – Dec 31, 2006	12	0.0042 mg/l	DS000	Accepted
Copper	Jan 1, 2005 – Jun 30, 2005	20	0.1219 mg/l	DS000	Accepted
Lead	Jan 1, 2005 – Jun 30, 2005	20	0.0069 mg/l	DS000	Accepted
Copper	Jul 1, 2004 – Dec 31, 2004	20	0.1219 mg/l	DS000	Accepted
Lead	Jul 1, 2004 – Dec 31, 2004	20	0.001 mg/l	DS000	Accepted
Copper	Jul 1, 2000 – Dec 31, 2000	10	0.103 mg/l	DS000	Accepted
Lead	Jul 1, 2000 – Dec 31, 2000	10	0.006 mg/l	DS000	Accepted
Copper	Jan 1, 1996 – Jun 30, 1996	10	0.193 mg/l	DS000	Accepted
Lead	Jan 1, 1996 – Jun 30, 1996	10	0 mg/l	DS000	Accepted
Copper	Jan 1, 1995 – Jun 30, 1995	20	0.147 mg/l	DS000	Accepted
Lead	Jan 1, 1995 – Jun 30, 1995	20	0.002 mg/l	DS000	Accepted
Copper	Jan 1, 1994 – Jun 30, 1994	20	0.091 mg/l	DS000	Accepted
Lead	Jan 1, 1994 – Jun 30, 1994	20	0.002 mg/l	DS000	Accepted
Copper	Jul 1, 1993 – Dec 31, 1993	14	0.17 mg/l	DS000	Accepted
Lead	Jul 1, 1993 – Dec 31, 1993	14	0.004 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.