Lead and copper

MS0550062 , PRCUA-Hillsdale Water System

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 PRCUA-Hillsdale Water System, 22 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	3	0.0061 mg/l	DS000	Accepted
Lead	Jan 1, 2021 – Dec 31, 2023	3	0.0026 mg/l	DS000	Accepted
Copper	Jan 1, 2018 – Dec 31, 2020	5	0.002 mg/l	DS000	Accepted
Lead	Jan 1, 2018 – Dec 31, 2020	5	0 mg/l	DS000	Accepted
Copper	Jan 1, 2017 – Dec 31, 2019	5	0.0422 mg/l	DS000	Accepted
Lead	Jan 1, 2017 – Dec 31, 2019	5	0.0065 mg/l	DS000	Accepted
Copper	Jan 1, 2016 – Dec 31, 2016	6	0.0397 mg/l	DS000	Accepted
Lead	Jan 1, 2016 – Dec 31, 2016	6	0.0031 mg/l	DS000	Accepted
Copper	Jan 1, 2015 – Dec 31, 2015	6	0.0071 mg/l	DS000	Accepted
Lead	Jan 1, 2015 – Dec 31, 2015	6	0.0015 mg/l	DS000	Accepted
Copper	Jan 1, 2014 – Dec 31, 2014	5	0.0103 mg/l	DS000	Accepted
Lead	Jan 1, 2014 – Dec 31, 2014	5	0.0012 mg/l	DS000	Accepted
Copper	Jan 1, 2013 – Dec 31, 2013	5	0.0093 mg/l	DS000	Accepted
Lead	Jan 1, 2013 – Dec 31, 2013	5	0.0008 mg/l	DS000	Accepted
Copper	Jan 1, 2012 – Jun 30, 2012	5	0.0568 mg/l	DS000	Accepted
Lead	Jan 1, 2012 – Jun 30, 2012	5	0.0012 mg/l	DS000	Accepted
Copper	Jul 1, 2011 – Dec 31, 2011	6	0.5112 mg/l	DS000	Accepted
Lead	Jul 1, 2011 – Dec 31, 2011	6	0.0037 mg/l	DS000	Accepted
Copper	Jan 1, 2011 – Jun 30, 2011	6	0.2533 mg/l	DS000	Accepted
Lead	Jan 1, 2011 – Jun 30, 2011	6	0.0184 mg/l	DS000	Accepted
Copper	Jul 1, 2010 – Dec 31, 2010	6	0.2456 mg/l	DS000	Accepted
Lead	Jul 1, 2010 – Dec 31, 2010	6	0.0128 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.