Water Quality
Water Quality > Hudson River Estuary Data > Rockland County & Westchester County Sites > Piermont Pier

Piermont Pier

Piermont Pier
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Physical/Chemical Data

Physical, chemical and biological properties of the surface water that are measured continuously while the patrol boat is underway.

Entero Count (fecal indicator) and Rainfall

392 Samples taken

Sample Date [i] Enterococcus Count
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Entero Count

Enterococcus (“Entero”) is a fecal indicating bacterium that lives in the intestines of humans and other warm-blooded animals. It is the EPA preferred indicator for sewage contamination.

Quality Rain, day of (in) Prior Day 2 Days Prior 3 Days Prior Rain 4 Days Total Rain
Sort Sort Sort Sort Sort Sort Sort Sort
10/16/2023 31 Acceptable 0.0 0.0 0.6 0.0 0.6
09/18/2023 30 Acceptable 1.0 0.2 0.1 0.0 1.3
08/22/2023 <10 Acceptable 0.0 0.0 0.0 1.3 1.3
07/17/2023 <10 Acceptable 0.0 1.4 0.2 1.0 2.6
06/26/2023 <10 Acceptable 1.6 0.0 0.3 0.2 2.0
05/01/2023 355 Beach Advisory 0.2 2.2 1.6 0.1 4.1
10/10/2022 10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/10/2022 20 Acceptable 0.0 0.0 0.0 2.1 2.1
08/12/2022 110 Beach Advisory 0.0 0.0 0.1 0.0 0.1
07/15/2022 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
06/13/2022 120 Beach Advisory 0.0 0.0 0.0 1.4 1.4
05/23/2022 41 Acceptable 0.0 0.0 0.0 0.2 0.2
12/06/2021 545 Beach Advisory 0.1 0.0 0.0 0.0 0.1
11/09/2021 573 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/25/2021 132 Beach Advisory 0.0 0.1 0.0 0.0 0.1
10/18/2021 305 Beach Advisory 0.0 0.0 0.7 0.0 0.7
09/27/2021 <10 Acceptable 0.0 0.0 0.0 1.0 1.0
09/13/2021 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/24/2021 41 Acceptable 0.4 1.0 1.4 0.1 2.8
08/16/2021 <10 Acceptable 0.0 0.0 0.1 0.0 0.1
07/27/2021 20 Acceptable 0.0 0.0 0.7 0.0 0.7
07/19/2021 <10 Acceptable 0.1 0.3 0.9 0.0 1.2
06/29/2021 20 Acceptable 0.0 0.0 0.0 0.0 0.0
06/07/2021 20 Acceptable 0.0 0.0 0.0 0.1 0.1
05/25/2021 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
05/17/2021 10 Acceptable 0.0 0.0 0.0 0.0 0.0
04/01/2021 556 Beach Advisory 0.1 0.2 0.0 0.0 0.3
03/02/2021 74 Beach Advisory 0.0 0.3 0.3 0.4 1.0
02/25/2021 613 Beach Advisory 0.0 0.0 0.5 0.0 0.5
01/14/2021 839 Beach Advisory 0.0 0.0 0.0 0.0 0.0
12/01/2020 1187 Beach Advisory 0.0 0.3 0.0 0.0 0.3
11/17/2020 336 Beach Advisory 0.0 0.0 0.3 0.0 0.3
10/27/2020 52 Acceptable 0.0 0.0 0.0 0.0 0.1
10/14/2020 <10 Acceptable 0.0 0.3 0.3 0.0 0.6
09/22/2020 10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/18/2020 31 Acceptable 0.0 0.0 0.0 0.0 0.0
08/25/2020 106 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/14/2020 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
07/28/2020 20 Acceptable 0.0 0.0 0.0 0.0 0.0
07/14/2020 <10 Acceptable 0.0 0.0 0.0 2.2 2.2
06/16/2020 10 Acceptable 0.0 0.0 0.0 0.0 0.0
05/26/2020 <10 Acceptable 0.0 0.0 0.0 0.2 0.2
03/04/2020 708 Beach Advisory 0.0 0.3 0.0 0.0 0.3
02/12/2020 1553 Beach Advisory 0.0 0.1 0.2 0.0 0.3
01/15/2020 860 Beach Advisory 0.0 0.0 0.0 0.2 0.2
12/05/2019 288 Beach Advisory 0.3 0.0 0.0 0.0 0.3
11/20/2019 173 Beach Advisory 0.0 0.4 0.8 0.0 1.2
10/26/2019 31 Acceptable 0.0 0.0 0.0 0.1 0.1
10/25/2019 <10 Acceptable 0.0 0.0 0.3 0.3 0.6
10/08/2019 <10 Acceptable 0.1 0.2 0.0 0.0 0.3
09/28/2019 <10 Acceptable 0.0 0.0 0.1 0.0 0.1
09/18/2019 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/10/2019 20 Acceptable 0.0 0.0 0.0 0.0 0.0
08/28/2019 10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/17/2019 30 Acceptable 0.0 0.0 0.0 0.0 0.0
08/06/2019 <10 Acceptable 0.0 0.0 0.2 0.9 1.1
07/23/2019 31 Acceptable 0.6 2.0 0.0 0.0 2.7
07/20/2019 30 Acceptable 0.0 0.0 0.5 0.7 1.2
07/09/2019 <10 Acceptable 0.0 0.0 0.0 0.6 0.6
06/26/2019 <10 Acceptable 0.0 0.3 0.0 0.0 0.3
06/15/2019 41 Acceptable 0.0 0.0 0.7 0.0 0.7
06/04/2019 10 Acceptable 0.0 0.0 0.0 0.0 0.0
05/29/2019 10 Acceptable 0.6 0.2 0.0 0.2 1.0
05/18/2019 10 Acceptable 0.0 0.0 0.0 0.0 0.1
05/07/2019 31 Acceptable 0.0 0.1 1.1 0.1 1.3
04/29/2019 108 Beach Advisory 0.0 0.1 0.3 1.1 1.4
03/14/2019 379 Beach Advisory 0.0 0.0 0.0 0.0 0.0
02/26/2019 75 Beach Advisory 0.0 0.0 0.3 0.0 0.3
01/28/2019 52 Acceptable 0.0 0.0 0.0 0.0 0.0
12/03/2018 195 Beach Advisory 0.0 0.9 0.2 0.0 1.1
11/08/2018 563 Beach Advisory 0.0 0.0 0.6 0.3 0.9
10/27/2018 90 Beach Advisory 0.7 0.0 0.0 0.0 0.7
10/24/2018 122 Beach Advisory 0.0 0.0 0.0 0.1 0.2
10/10/2018 31 Acceptable 0.0 0.0 0.1 0.0 0.1
09/20/2018 41 Acceptable 0.0 0.0 1.2 0.0 1.2
09/15/2018 10 Acceptable 0.0 0.0 0.0 0.1 0.1
09/10/2018 95 Beach Advisory 1.7 0.1 0.1 0.0 1.9
08/18/2018 31 Acceptable 0.0 0.9 0.0 0.0 1.0
08/14/2018 41 Acceptable 0.0 0.8 0.2 1.9 2.8
08/09/2018 10 Acceptable 0.0 0.4 0.1 0.0 0.5
07/23/2018 74 Beach Advisory 0.6 1.4 0.1 0.0 2.0
07/21/2018 10 Acceptable 0.0 0.0 0.0 0.0 0.0
07/17/2018 31 Acceptable 1.6 0.1 0.3 0.5 2.5
06/21/2018 20 Acceptable 0.2 0.0 0.1 0.1 0.4
06/13/2018 20 Acceptable 0.0 0.0 0.0 0.0 0.0
05/23/2018 10 Acceptable 0.2 0.1 0.0 0.0 0.3
05/19/2018 74 Beach Advisory 0.3 0.0 0.3 1.4 1.9
05/06/2018 712 Beach Advisory 0.2 0.0 0.0 0.3 0.5
04/24/2018 158 Beach Advisory 0.0 0.0 0.0 0.0 0.0
04/17/2018 1664 Beach Advisory 0.0 2.6 0.3 0.0 2.9
03/26/2018 146 Beach Advisory 0.0 0.0 0.0 0.0 0.0
02/26/2018 298 Beach Advisory 0.0 0.9 0.3 0.2 1.5
01/24/2018 134 Beach Advisory 0.0 1.1 0.1 0.0 1.2
12/04/2017 624 Beach Advisory 0.0 0.0 0.0 0.0 0.0
11/16/2017 139 Beach Advisory 0.1 0.0 0.0 0.0 0.2
10/21/2017 209 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/16/2017 243 Beach Advisory 0.1 0.0 0.0 0.0 0.2
10/11/2017 199 Beach Advisory 0.0 0.0 0.3 0.1 0.4
09/29/2017 121 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/16/2017 75 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/11/2017 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/19/2017 609 Beach Advisory 0.0 0.7 0.0 0.0 0.7
08/14/2017 <10 Acceptable 0.0 0.0 0.4 0.3 0.8
08/07/2017 238 Beach Advisory 0.5 0.0 0.3 0.0 0.9
07/15/2017 199 Beach Advisory 0.0 0.9 0.5 0.0 1.4
07/10/2017 41 Acceptable 0.0 0.0 0.0 2.2 2.2
07/06/2017 108 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/17/2017 63 Beach Advisory 0.0 0.3 0.0 0.0 0.3
06/12/2017 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
06/06/2017 96 Beach Advisory 0.2 0.2 0.2 0.0 0.6
05/22/2017 31 Acceptable 0.0 0.0 0.0 0.0 0.0
05/15/2017 41 Acceptable 0.0 0.1 1.7 0.0 1.8
04/13/2017 121 Beach Advisory 0.0 0.1 0.0 0.0 0.1
04/04/2017 1198 Beach Advisory 1.1 0.0 0.0 0.1 1.2
03/30/2017 20 Acceptable 0.0 0.0 0.5 0.5 1.0
02/02/2017 556 Beach Advisory 0.0 0.1 0.0 0.0 0.1
01/11/2017 262 Beach Advisory 0.5 0.0 0.0 0.0 0.5
12/01/2016 6131 Beach Advisory 0.3 1.2 1.5 0.0 2.9
11/16/2016 1552 Beach Advisory 0.0 2.6 0.0 0.0 2.6
10/24/2016 4160 Beach Advisory 0.2 0.0 0.8 0.8 1.8
10/13/2016 51 Acceptable 0.1 0.0 0.0 0.0 0.1
10/08/2016 200 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/28/2016 459 Beach Advisory 0.0 0.4 0.0 0.0 0.4
09/14/2016 20 Acceptable 0.0 0.0 0.0 0.0 0.0
09/10/2016 160 Beach Advisory 0.2 0.0 0.0 0.0 0.2
08/30/2016 41 Acceptable 0.0 0.0 0.0 0.0 0.0
08/15/2016 <10 Acceptable 0.0 0.1 0.1 0.2 0.4
08/13/2016 1180 Beach Advisory 0.0 0.2 0.3 0.2 0.6
07/13/2016 10 Acceptable 0.0 0.0 0.0 0.0 0.1
07/09/2016 200 Beach Advisory 0.0 0.1 0.0 0.0 0.1
07/05/2016 269 Beach Advisory 0.6 0.0 0.0 0.1 0.7
06/15/2016 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
06/11/2016 10 Acceptable 0.0 0.0 0.0 0.1 0.1
06/07/2016 30 Acceptable 0.0 0.0 1.7 0.0 1.7
05/20/2016 20 Acceptable 0.0 0.0 0.0 0.0 0.0
05/14/2016 121 Beach Advisory 0.0 0.3 0.0 0.0 0.3
05/09/2016 417 Beach Advisory 0.0 0.1 0.0 0.8 1.0
04/18/2016 145 Beach Advisory 0.0 0.0 0.0 0.0 0.0
03/07/2016 266 Beach Advisory 0.0 0.0 0.0 0.0 0.0
02/01/2016 657 Beach Advisory 0.0 0.0 0.0 0.0 0.0
01/12/2016 388 Beach Advisory 0.0 0.0 1.1 0.0 1.1
12/07/2015 156 Beach Advisory 0.0 0.0 0.0 0.0 0.0
11/16/2015 96 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/27/2015 132 Beach Advisory 0.0 0.0 0.1 0.0 0.1
10/12/2015 <10 Acceptable 0.0 0.0 0.0 0.1 0.1
10/03/2015 <10 Acceptable 0.3 0.4 0.1 1.4 2.2
09/22/2015 63 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/11/2015 31 Acceptable 0.3 1.3 0.1 0.0 1.7
09/05/2015 31 Acceptable 0.0 0.0 0.0 0.0 0.0
08/18/2015 10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/12/2015 31 Acceptable 0.0 1.0 0.0 0.0 1.0
08/01/2015 <10 Acceptable 0.0 0.0 1.5 0.0 1.5
07/08/2015 <10 Acceptable 0.0 0.1 0.0 0.0 0.1
07/04/2015 10 Acceptable 0.0 0.0 0.0 0.8 0.8
06/11/2015 20 Acceptable 0.0 0.0 0.2 0.2 0.3
06/06/2015 31 Acceptable 0.4 0.0 0.0 0.0 0.4
05/27/2015 86 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/12/2015 3448 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/05/2015 521 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/02/2015 279 Beach Advisory 0.0 0.0 0.0 0.0 0.0
04/06/2015 144 Beach Advisory 0.0 0.0 0.2 0.0 0.2
03/11/2015 1054 Beach Advisory 0.0 0.2 0.0 0.1 0.4
02/23/2015 683 Beach Advisory 0.0 0.0 0.0 0.0 0.0
01/05/2015 464 Beach Advisory 0.0 0.4 0.4 0.0 0.8
12/01/2014 480 Beach Advisory 0.0 0.0 0.0 0.0 0.0
11/10/2014 441 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/27/2014 816 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/13/2014 <10 Acceptable 0.0 0.0 0.4 0.0 0.4
10/04/2014 10 Acceptable 0.2 0.0 0.0 0.0 0.2
09/22/2014 20 Acceptable 0.0 0.2 0.0 0.0 0.2
09/08/2014 10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/06/2014 10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/26/2014 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/12/2014 10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/02/2014 98 Beach Advisory 0.2 0.8 0.5 0.5 2.1
07/15/2014 1553 Beach Advisory 0.0 1.7 0.0 0.0 1.7
07/08/2014 20 Acceptable 0.2 0.0 0.0 0.0 0.2
07/05/2014 <10 Acceptable 0.0 0.2 2.2 0.9 3.2
06/24/2014 41 Acceptable 0.0 0.0 0.0 0.0 0.0
06/13/2014 10 Acceptable 1.4 0.0 0.1 0.0 1.5
06/07/2014 <10 Acceptable 0.0 0.0 0.7 0.1 0.8
05/27/2014 41 Acceptable 0.0 0.0 0.0 0.1 0.1
05/13/2014 134 Beach Advisory 0.0 0.0 0.1 0.3 0.3
05/06/2014 318 Beach Advisory 0.0 0.0 0.0 0.1 0.1
05/03/2014 10 Acceptable 0.1 0.0 0.3 2.9 3.3
04/21/2014 613 Beach Advisory 0.0 0.0 0.0 0.0 0.0
03/31/2014 193 Beach Advisory 0.1 1.0 1.5 0.1 2.8
02/24/2014 2014 Beach Advisory 0.0 0.0 0.0 0.1 0.1
01/27/2014 1119 Beach Advisory 0.0 0.0 0.0 0.0 0.0
12/02/2013 1722 Beach Advisory 0.0 0.0 0.0 0.0 0.0
11/13/2013 889 Beach Advisory 0.0 0.1 0.0 0.0 0.1
10/28/2013 359 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/17/2013 63 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/12/2013 31 Acceptable 0.0 0.0 0.0 0.0 0.0
09/30/2013 10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/19/2013 10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/14/2013 20 Acceptable 0.0 0.6 0.2 0.0 0.8
08/28/2013 10 Acceptable 0.0 0.1 0.2 0.0 0.3
08/15/2013 20 Acceptable 0.0 0.0 0.7 0.4 1.1
08/10/2013 10 Acceptable 0.0 0.4 0.2 0.0 0.6
07/24/2013 10 Acceptable 0.0 2.1 0.3 0.0 2.4
07/18/2013 10 Acceptable 0.0 0.0 0.0 0.0 0.0
07/13/2013 10 Acceptable 0.1 0.2 1.0 0.4 1.7
06/27/2013 10 Acceptable 0.0 0.0 0.0 0.0 0.0
06/20/2013 52 Acceptable 0.0 0.0 0.3 0.2 0.5
06/15/2013 20 Acceptable 0.0 0.3 0.6 0.0 0.9
05/30/2013 10 Acceptable 0.0 0.0 0.4 0.0 0.4
05/04/2013 75 Beach Advisory 0.0 0.0 0.0 0.0 0.0
04/22/2013 959 Beach Advisory 0.0 0.0 0.1 0.0 0.2
03/18/2013 211 Beach Advisory 0.0 0.0 0.0 0.0 0.1
02/25/2013 836 Beach Advisory 0.0 0.0 0.1 0.0 0.1
12/10/2012 880 Beach Advisory 0.1 0.2 0.2 0.1 0.6
10/11/2012 20 Acceptable 0.0 0.1 0.0 0.0 0.1
10/06/2012 20 Acceptable 0.0 0.0 0.1 0.7 0.8
09/11/2012 20 Acceptable 0.0 0.0 0.0 1.4 1.4
09/08/2012 20 Acceptable 0.0 0.7 0.0 0.1 0.7
08/14/2012 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/04/2012 <10 Acceptable 0.0 0.0 0.0 0.1 0.1
07/17/2012 <10 Acceptable 0.0 0.0 0.2 0.0 0.2
07/14/2012 20 Acceptable 0.0 0.0 0.0 0.0 0.0
06/12/2012 20 Acceptable 0.0 0.0 0.0 0.0 0.0
06/02/2012 97 Beach Advisory 0.7 0.0 0.0 0.0 0.7
05/16/2012 41 Acceptable 0.1 0.4 0.1 0.0 0.5
04/09/2012 657 Beach Advisory 0.0 0.0 0.0 0.0 0.0
03/05/2012 259 Beach Advisory 0.0 0.0 0.1 0.1 0.1
02/06/2012 448 Beach Advisory 0.0 0.0 0.0 0.0 0.0
01/03/2012 1246 Beach Advisory 0.0 0.0 0.1 0.0 0.1
12/05/2011 465 Beach Advisory 0.0 0.0 0.0 0.0 0.0
11/07/2011 262 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/20/2011 20 Acceptable 0.0 0.1 0.0 0.0 0.1
09/15/2011 52 Acceptable 0.0 0.0 0.0 0.0 0.0
08/17/2011 <10 Acceptable 0.0 0.0 0.0 3.4 3.4
07/18/2011 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
06/28/2011 10 Acceptable 0.0 0.0 0.0 0.0 0.0
06/02/2011 10 Acceptable 0.0 0.0 0.0 0.2 0.2
05/17/2011 189 Beach Advisory 1.2 0.0 0.8 0.0 2.0
05/02/2011 557 Beach Advisory 0.0 0.0 0.0 0.4 0.4
04/04/2011 327 Beach Advisory 0.0 0.0 0.0 0.2 0.3
03/07/2011 2481 Beach Advisory 0.2 2.1 0.0 0.0 2.3
02/07/2011 990 Beach Advisory 0.0 0.1 0.2 0.1 0.5
01/11/2011 1541 Beach Advisory 0.0 0.0 0.0 0.0 0.1
01/03/2011 1607 Beach Advisory 0.0 0.0 0.0 0.1 0.1
12/29/2010 1333 Beach Advisory 0.0 0.1 0.0 0.0 0.1
12/20/2010 546 Beach Advisory 0.0 0.0 0.0 0.0 0.0
12/13/2010 984 Beach Advisory 0.2 1.0 0.0 0.0 1.1
12/06/2010 1106 Beach Advisory 0.0 0.0 0.0 0.0 0.0
11/29/2010 4106 Beach Advisory 0.0 0.0 0.0 0.1 0.1
11/22/2010 1234 Beach Advisory 0.0 0.0 0.0 0.0 0.0
11/16/2010 933 Beach Advisory 0.0 0.0 0.0 0.0 0.0
11/08/2010 4106 Beach Advisory 0.0 0.0 0.0 0.0 0.0
11/01/2010 2755 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/25/2010 1616 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/18/2010 379 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/13/2010 <10 Acceptable 0.0 0.1 0.3 0.0 0.3
10/04/2010 171 Beach Advisory 0.0 0.0 0.0 2.0 2.1
09/27/2010 20 Acceptable 0.2 0.0 0.0 0.0 0.2
09/20/2010 61 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/12/2010 10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/06/2010 62 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/29/2010 481 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/24/2010 860 Beach Advisory 0.0 0.2 2.1 0.0 2.3
08/18/2010 41 Acceptable 0.0 0.0 0.2 0.3 0.5
08/10/2010 84 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/03/2010 30 Acceptable 0.0 0.0 0.0 0.0 0.0
07/26/2010 1479 Beach Advisory 0.0 0.7 0.0 0.1 0.8
07/22/2010 74 Beach Advisory 0.0 0.1 0.0 1.4 1.5
07/06/2010 10 Acceptable 0.0 0.0 0.0 0.0 0.0
06/28/2010 84 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/21/2010 10 Acceptable 0.0 0.0 0.0 0.0 0.0
06/16/2010 10 Acceptable 0.0 0.0 0.0 0.0 0.1
06/08/2010 10 Acceptable 0.0 0.0 0.3 0.0 0.3
06/01/2010 63 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/24/2010 41 Acceptable 0.0 0.0 0.0 0.0 0.0
05/22/2010 10 Acceptable 0.0 0.0 0.0 0.0 0.0
05/17/2010 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
05/10/2010 161 Beach Advisory 0.0 0.0 0.1 0.0 0.1
05/03/2010 241 Beach Advisory 1.2 0.0 0.0 0.0 1.2
04/26/2010 243 Beach Advisory 0.2 1.2 0.0 0.0 1.4
04/19/2010 345 Beach Advisory 0.0 0.0 0.0 0.2 0.2
04/12/2010 816 Beach Advisory 0.0 0.0 0.0 0.3 0.3
04/06/2010 591 Beach Advisory 0.0 0.0 0.0 0.0 0.0
03/29/2010 3255 Beach Advisory 1.7 0.2 0.0 0.1 2.0
03/22/2010 1333 Beach Advisory 1.2 0.0 0.0 0.0 1.2
03/17/2010 762 Beach Advisory 0.0 0.0 0.4 0.3 0.7
03/08/2010 441 Beach Advisory 0.0 0.0 0.0 0.0 0.0
03/01/2010 583 Beach Advisory 0.0 0.0 0.1 0.0 0.1
02/22/2010 1720 Beach Advisory 0.0 0.0 0.0 0.0 0.0
02/15/2010 591 Beach Advisory 0.0 0.0 0.0 0.1 0.2
02/08/2010 473 Beach Advisory 0.0 0.0 0.0 0.0 0.0
02/02/2010 605 Beach Advisory 0.0 0.0 0.0 0.0 0.0
01/26/2010 573 Beach Advisory 0.0 1.3 0.0 0.0 1.3
01/19/2010 598 Beach Advisory 0.0 0.1 0.2 0.0 0.3
01/12/2010 266 Beach Advisory 0.0 0.0 0.0 0.0 0.0
01/05/2010 794 Beach Advisory 0.0 0.0 0.0 0.0 0.0
12/28/2009 959 Beach Advisory 0.0 0.3 1.1 0.1 1.6
12/21/2009 1723 Beach Advisory 0.0 0.0 0.0 0.0 0.0
12/15/2009 512 Beach Advisory 0.0 0.0 1.1 0.0 1.1
12/08/2009 1106 Beach Advisory 0.0 0.0 0.0 0.0 0.0
12/01/2009 1234 Beach Advisory 0.0 0.2 0.0 0.0 0.2
11/23/2009 292 Beach Advisory 0.0 0.0 0.0 0.4 0.4
11/17/2009 624 Beach Advisory 0.0 0.0 0.0 0.0 0.1
11/10/2009 908 Beach Advisory 0.0 0.0 0.0 0.0 0.0
11/04/2009 1904 Beach Advisory 0.0 0.0 0.0 0.1 0.1
10/27/2009 161 Beach Advisory 0.3 0.0 0.0 0.3 0.6
10/20/2009 364 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/13/2009 41 Acceptable 0.0 0.0 0.0 0.1 0.1
10/06/2009 31 Acceptable 0.0 0.0 0.0 0.4 0.4
09/29/2009 20 Acceptable 0.0 0.2 0.9 0.1 1.1
09/22/2009 31 Acceptable 0.0 0.0 0.0 0.0 0.0
09/15/2009 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/08/2009 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/29/2009 <10 Acceptable 0.3 1.0 0.0 0.0 1.3
08/22/2009 144 Beach Advisory 2.0 0.6 0.0 0.0 2.6
08/21/2009 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
07/29/2009 10 Acceptable 0.0 0.0 0.0 0.2 0.2
07/19/2009 <10 Acceptable 0.0 0.0 0.1 0.0 0.1
07/13/2009 10 Acceptable 0.0 0.2 0.0 0.0 0.3
07/06/2009 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
06/29/2009 <10 Acceptable 0.0 0.0 0.0 0.7 0.7
06/23/2009 20 Acceptable 0.0 0.0 0.6 0.5 1.1
06/16/2009 20 Acceptable 0.0 0.6 0.0 0.0 0.6
06/09/2009 197 Beach Advisory 0.0 0.0 0.1 0.0 0.1
06/06/2009 <10 Acceptable 0.0 0.8 0.4 0.4 1.6
06/04/2009 14 Acceptable 0.0 0.0 0.1 0.0 0.1
05/27/2009 20 Acceptable 0.0 0.0 0.1 0.0 0.1
05/19/2009 <10 Acceptable 0.0 0.0 0.2 0.0 0.2
05/13/2009 75 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/05/2009 183 Beach Advisory 0.0 0.2 0.3 0.1 0.6
04/29/2009 108 Beach Advisory 0.0 0.0 0.0 0.0 0.0
04/22/2009 203 Beach Advisory 0.3 0.1 0.9 0.0 1.3
04/13/2009 473 Beach Advisory 0.0 0.0 0.4 0.0 0.4
04/08/2009 364 Beach Advisory 0.0 0.0 0.4 0.0 0.4
03/31/2009 336 Beach Advisory 0.0 0.0 0.3 0.1 0.5
03/25/2009 280 Beach Advisory 0.0 0.0 0.0 0.0 0.0
03/17/2009 253 Beach Advisory 0.0 0.0 0.0 0.0 0.0
03/10/2009 213 Beach Advisory 0.0 0.1 0.0 0.0 0.2
03/05/2009 341 Beach Advisory 0.0 0.1 0.2 0.0 0.4
02/26/2009 210 Beach Advisory 0.0 0.0 0.0 0.0 0.0
02/16/2009 340 Beach Advisory 0.0 0.0 0.0 0.0 0.0
02/11/2009 930 Beach Advisory 0.0 0.0 0.0 0.0 0.0
02/06/2009 290 Beach Advisory 0.0 0.0 0.0 0.0 0.0
02/05/2009 75 Beach Advisory 0.0 0.1 0.1 0.0 0.1
01/27/2009 987 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/21/2008 432 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/28/2008 860 Beach Advisory 0.2 0.0 1.6 0.1 2.0
09/27/2008 301 Beach Advisory 0.0 1.6 0.1 0.0 1.7
09/26/2008 80 Beach Advisory 1.6 0.1 0.0 0.0 1.7
09/23/2008 10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/19/2008 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/10/2008 40 Acceptable 0.0 0.6 0.0 0.0 0.6
09/08/2008 50 Acceptable 0.0 0.0 4.8 0.0 4.8
09/07/2008 130 Beach Advisory 0.0 4.8 0.0 0.0 4.8
09/06/2008 1620 Beach Advisory 4.8 0.0 0.0 0.0 4.8
09/06/2008 10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/05/2008 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/28/2008 20 Acceptable 0.0 0.0 0.0 0.0 0.0
08/22/2008 99 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/21/2008 30 Acceptable 0.0 0.0 0.0 0.0 0.0
08/16/2008 12030 Beach Advisory 0.0 1.0 0.0 0.0 1.1
08/06/2008 934 Beach Advisory 1.6 0.0 0.0 0.0 1.7
07/31/2008 13 Acceptable 0.0 0.0 0.0 0.0 0.0
07/25/2008 11 Acceptable 0.0 0.8 0.9 0.0 1.7
07/23/2008 250 Beach Advisory 0.9 0.0 0.0 0.0 0.9
07/20/2008 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
07/15/2008 <10 Acceptable 0.0 1.1 0.0 0.0 1.1
07/11/2008 <10 Acceptable 0.0 0.0 0.1 0.0 0.1
07/10/2008 20 Acceptable 0.0 0.1 0.0 0.0 0.1
07/03/2008 727 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/01/2008 41 Acceptable 0.0 0.0 0.1 0.0 0.1
06/25/2008 1218 Beach Advisory 0.0 0.0 0.0 0.1 0.1
06/20/2008 5 Acceptable 0.0 0.0 0.6 0.0 0.6
06/19/2008 11 Acceptable 0.0 0.6 0.0 0.9 1.6
06/09/2008 4 Acceptable 0.0 0.2 0.0 0.0 0.2
05/29/2008 15 Acceptable 0.0 0.0 0.6 0.0 0.6
05/20/2008 31 Acceptable 0.0 0.0 0.2 0.1 0.3
05/19/2008 30 Acceptable 0.0 0.2 0.1 0.9 1.2
05/16/2008 10 Acceptable 0.9 0.0 0.0 0.0 0.9
05/16/2008 10 Acceptable 0.9 0.0 0.0 0.0 0.9
09/09/2007 35 Acceptable 0.0 0.0 0.0 0.0 0.0
09/06/2007 21 Acceptable 0.0 0.0 0.0 0.0 0.0
08/23/2007 7 Acceptable 0.0 0.0 1.3 0.1 1.4
08/16/2007 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
07/16/2007 83 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/11/2007 43 Acceptable 0.0 0.0 0.0 0.0 0.0
06/18/2007 11 Acceptable 0.0 0.0 0.0 0.0 0.0
05/21/2007 14 Acceptable 0.0 0.0 0.2 0.0 0.2
04/25/2007 333 Beach Advisory 0.0 0.0 0.0 0.0 0.0
04/18/2007 1104 Beach Advisory 0.0 0.0 0.9 7.6 8.5
12/06/2006 132 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/28/2006 1275 Beach Advisory 2.2 0.3 0.0 0.0 2.5
10/18/2006 1120 Beach Advisory 0.0 1.1 0.0 0.0 1.1
10/17/2006 200 Beach Advisory 1.1 0.0 0.0 0.0 1.1

Entero Count (fecal indicator) and Rainfall Correlation

392 Samples taken

All Water Quality Parameters

392 Samples taken

Sample Date [i] Entero Count
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Entero Count

Enterococcus (“Entero”) is a fecal indicating bacterium that lives in the intestines of humans and other warm-blooded animals. It is the EPA preferred indicator for sewage contamination.

Quality [i] Temp (f)
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Temperature

Hudson River water temperature changes seasonally. Surface water temperature can change on small scales in the river reflecting natural and human influences.

[i] Salinity
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Salinity

Estuaries like the Hudson are where freshwaters in rivers meet the sea. Salinity tells us about the relative contribution of fresh and salt water within a particular region of the estuary. 

[i] Chlorophyll
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Chlorophyll

A measure of the amount of microscopic algae present in the water. High chlorophyll counts can mean high levels of the nutrients phosphorus and nitrogen, and the threat, or presence, of algae blooms.

[i] Turbidity
close

Turbidity

Turbidity is a measure of the amount of fine particles suspended in the water. As turbidity rises, light penetration, a key factor for aquatic plants and algae, diminishes.

[i] Oxygen
close

Oxygen

Oxygen concentrations in the water are closely connected to biological activities. Surface waters are typically in equilibrium with the atmosphere such that the oxygen concentration near the surface is close to fully saturated (100%).

Sort Sort Sort Sort Sort Sort Sort Sort
10/16/2023 31 Acceptable 16.41 4.31 1.26 17.7 106.3
09/18/2023 30 Acceptable 21.83 6.79 2.93 n/a n/a
08/22/2023 <10 Acceptable 26.32 4.29 9.35 11.2 100.9
07/17/2023 <10 Acceptable 27.76 1.05 5.52 27 98.8
06/26/2023 <10 Acceptable 73.3 7.2 29.0 27.5 116.8
05/01/2023 355 Beach Advisory 55.5 0.8 4.2 17.6 99.7
10/10/2022 10 Acceptable 62.1 10.4 3.2 22.8 87.4
09/10/2022 20 Acceptable 78.4 10.9 5.5 15.7 87.9
08/12/2022 110 Beach Advisory 80.9 11.4 6 58.7 88.9
07/15/2022 <10 Acceptable 78 10.7 5.2 23.3 88.8
06/13/2022 120 Beach Advisory 73 6.8 21.8 38.9 121
05/23/2022 41 Acceptable 69.4 6.9 3.1 95.5 101.5
12/06/2021 545 Beach Advisory 45.86 5.65 n/a n/a 89
11/09/2021 573 Beach Advisory 54.68 1.36 n/a n/a 86.8
10/25/2021 132 Beach Advisory 63.248 1.97 3.11 15.2 101.8
10/18/2021 305 Beach Advisory 63.86 3.84 n/a n/a 87.5
09/27/2021 <10 Acceptable 71.96 1.6 n/a n/a 92.4
09/13/2021 <10 Acceptable 77.504 2.65 3.98 28.9 101.1
08/24/2021 41 Acceptable 79.88 2.33 n/a n/a 91.5
08/16/2021 <10 Acceptable 79.646 5.97 4.97 12.3 93.7
07/27/2021 20 Acceptable 82.76 0.53 n/a n/a 130.2
07/19/2021 <10 Acceptable 80.564 0.93 8.21 14.8 101.8
06/29/2021 20 Acceptable 78.98 7.11 n/a n/a 85.8
06/07/2021 20 Acceptable 76.028 5.49 16.83 13.9 113.9
05/25/2021 <10 Acceptable 63.68 7.32 n/a n/a 99.2
05/17/2021 10 Acceptable 67.226 2.14 3.4 9.2 111.6
04/01/2021 556 Beach Advisory 47.48 3.61 n/a n/a 94.8
03/02/2021 74 Beach Advisory 36.14 8.09 n/a n/a 91.4
02/25/2021 613 Beach Advisory 37.94 7.43 n/a n/a 94.1
01/14/2021 839 Beach Advisory 37.94 5.19 n/a n/a 88.6
12/01/2020 1187 Beach Advisory 52.52 8.38 n/a n/a 89.5
11/17/2020 336 Beach Advisory 50.54 8.5 n/a n/a 86.5
10/27/2020 52 Acceptable 60.08 9.93 n/a n/a 87.9
10/14/2020 <10 Acceptable 63.374 10.05 2.36 18.9 89.3
09/22/2020 10 Acceptable 64.4 11.8 n/a n/a 89.7
09/18/2020 31 Acceptable 70.988 11.33 4.9 52.8 84.8
08/25/2020 106 Beach Advisory 80.24 10.27 n/a n/a 70.8
08/14/2020 <10 Acceptable 83.462 5.74 32.53 13.9 133.7
07/28/2020 20 Acceptable 84.74 10.06 n/a n/a 98.3
07/14/2020 <10 Acceptable 81.878 7.68 20.44 16.6 127.2
06/16/2020 10 Acceptable 73.58 5.13 10.05 16.6 126.9
05/26/2020 <10 Acceptable 64.166 6.32 19.66 22.5 126.6
03/04/2020 708 Beach Advisory 41.9 2 n/a n/a 96.4
02/12/2020 1553 Beach Advisory 39.56 6.1 n/a n/a 91.8
01/15/2020 860 Beach Advisory 40.28 2.59 n/a n/a 94.5
12/05/2019 288 Beach Advisory 40.64 2.6 n/a n/a 90.8
11/20/2019 173 Beach Advisory 47.48 2.94 n/a n/a 91.2
10/26/2019 31 Acceptable n/a n/a n/a n/a n/a
10/25/2019 <10 Acceptable 61.52 4.44 n/a n/a 90.3
10/08/2019 <10 Acceptable 66.866 7.58 9 12.9 98.1
09/28/2019 <10 Acceptable n/a n/a n/a n/a n/a
09/18/2019 <10 Acceptable 71.42 9.43 n/a n/a 86.4
09/10/2019 20 Acceptable 74.678 7.27 8.67 10.3 86.4
08/28/2019 10 Acceptable 77.54 7.71 n/a n/a 89.8
08/17/2019 30 Acceptable n/a n/a n/a n/a n/a
08/06/2019 <10 Acceptable 80.978 8.51 13.12 52.1 84.5
07/23/2019 31 Acceptable 80.06 5.35 n/a n/a 93.8
07/20/2019 30 Acceptable n/a n/a n/a n/a n/a
07/09/2019 <10 Acceptable n/a n/a n/a n/a n/a
06/26/2019 <10 Acceptable 74.84 1.78 n/a n/a 100.2
06/15/2019 41 Acceptable n/a n/a n/a n/a n/a
06/04/2019 10 Acceptable 66.902 4.4 3.04 18.5 91.9
05/29/2019 10 Acceptable 65.66 1.37 n/a n/a 105.5
05/18/2019 10 Acceptable n/a n/a n/a n/a n/a
05/07/2019 31 Acceptable 59.09 1.52 3.82 39.7 95.3
04/29/2019 108 Beach Advisory 56.12 0.19 n/a n/a 95.8
03/14/2019 379 Beach Advisory 41.54 5.16 n/a n/a 92.9
02/26/2019 75 Beach Advisory 33.98 0.34 n/a n/a 92.7
01/28/2019 52 Acceptable 34.34 0.96 n/a n/a 91.8
12/03/2018 195 Beach Advisory 44.6 0.81 n/a n/a 93.2
11/08/2018 563 Beach Advisory 54.32 0.24 n/a n/a 88.8
10/27/2018 90 Beach Advisory n/a n/a n/a n/a n/a
10/24/2018 122 Beach Advisory 57.92 4.93 n/a n/a 88
10/10/2018 31 Acceptable 70.988 0.58 5.68 32.8 89.9
09/20/2018 41 Acceptable 74.84 3.9 n/a n/a 85.7
09/15/2018 10 Acceptable n/a n/a n/a n/a n/a
09/10/2018 95 Beach Advisory 71.366 7.65 4.7 17.6 82.4
08/18/2018 31 Acceptable n/a n/a n/a n/a n/a
08/14/2018 41 Acceptable 82.31 3.62 13.95 20.2 94.6
08/09/2018 10 Acceptable 84.38 4.56 n/a n/a 123.9
07/23/2018 74 Beach Advisory 78.26 10.21 n/a n/a 92.6
07/21/2018 10 Acceptable n/a n/a n/a n/a n/a
07/17/2018 31 Acceptable 80.888 10.72 44.1 46.1 119.4
06/21/2018 20 Acceptable 76.46 8.05 n/a n/a 95.4
06/13/2018 20 Acceptable 70.07 8.13 76.07 28.3 145.1
05/23/2018 10 Acceptable 68.72 3.85 n/a n/a 93.4
05/19/2018 74 Beach Advisory n/a n/a n/a n/a n/a
05/06/2018 712 Beach Advisory 58.982 0.23 4.3 41.5 100.7
04/24/2018 158 Beach Advisory 54.68 0.85 n/a n/a 97.3
04/17/2018 1664 Beach Advisory 46.04 3.75 n/a n/a 95.4
03/26/2018 146 Beach Advisory 41.9 4.28 n/a n/a 95
02/26/2018 298 Beach Advisory 38.66 0.85 n/a n/a 98.4
01/24/2018 134 Beach Advisory 35.78 2.19 n/a n/a 100.5
12/04/2017 624 Beach Advisory 47.3 7.05 n/a n/a 86.4
11/16/2017 139 Beach Advisory 52.7 7.46 n/a n/a 87.7
10/21/2017 209 Beach Advisory n/a n/a n/a n/a n/a
10/16/2017 243 Beach Advisory 67.658 10.2 4.36 35.9 87.6
10/11/2017 199 Beach Advisory 71.6 9.67 n/a n/a 82.4
09/29/2017 121 Beach Advisory 71.42 8.34 n/a n/a 86.1
09/16/2017 75 Beach Advisory n/a n/a n/a n/a n/a
09/11/2017 <10 Acceptable 70.142 8.42 5.72 18.4 94.6
08/19/2017 609 Beach Advisory n/a n/a n/a n/a n/a
08/14/2017 <10 Acceptable 79.664 6.78 10.84 24.9 100.7
08/07/2017 238 Beach Advisory 74.84 6.51 n/a n/a 89.6
07/15/2017 199 Beach Advisory n/a n/a n/a n/a n/a
07/10/2017 41 Acceptable 77.018 3.99 3.07 18.2 97.5
07/06/2017 108 Beach Advisory 77.18 2.19 n/a n/a 96.9
06/17/2017 63 Beach Advisory n/a n/a n/a n/a n/a
06/12/2017 <10 Acceptable 71.33 1.93 3.05 26.4 92.7
06/06/2017 96 Beach Advisory 64.04 2.26 n/a n/a 92.8
05/22/2017 31 Acceptable 62.06 2.45 n/a n/a 95.9
05/15/2017 41 Acceptable 57.92 0.5 4.7 39.6 98.4
04/13/2017 121 Beach Advisory 50.72 0.13 n/a n/a 99.5
04/04/2017 1198 Beach Advisory n/a n/a n/a n/a n/a
03/30/2017 20 Acceptable 42.62 4.24 n/a n/a 94.4
02/02/2017 556 Beach Advisory 37.4 4.73 n/a n/a 91.3
01/11/2017 262 Beach Advisory 38.48 5.65 n/a n/a 93.2
12/01/2016 6131 Beach Advisory 50.36 8.45 n/a n/a 91.4
11/16/2016 1552 Beach Advisory 53.78 9.97 n/a n/a 93.1
10/24/2016 4160 Beach Advisory 60.44 10.76 n/a n/a 89.6
10/13/2016 51 Acceptable 65.372 11.31 3.34 44.2 84
10/08/2016 200 Beach Advisory n/a n/a n/a n/a n/a
09/28/2016 459 Beach Advisory 71.42 11.08 n/a n/a 89.1
09/14/2016 20 Acceptable 78.152 10.22 0.82 n/a 96.8
09/10/2016 160 Beach Advisory n/a n/a n/a n/a n/a
08/30/2016 41 Acceptable 82.58 7.82 n/a n/a 113.9
08/15/2016 <10 Acceptable 87.044 6.38 19.29 32.4 166.9
08/13/2016 1180 Beach Advisory n/a n/a n/a n/a n/a
07/13/2016 10 Acceptable 79.016 7.67 11.19 27.9 98.9
07/09/2016 200 Beach Advisory n/a n/a n/a n/a n/a
07/05/2016 269 Beach Advisory 76.46 9.4 n/a n/a 83.5
06/15/2016 <10 Acceptable 72.662 4.56 8.42 31.9 114.9
06/11/2016 10 Acceptable n/a n/a n/a n/a n/a
06/07/2016 30 Acceptable 73.22 7.36 n/a n/a 93.5
05/20/2016 20 Acceptable 63.626 3.34 16.51 n/a 116.5
05/14/2016 121 Beach Advisory n/a n/a n/a n/a n/a
05/09/2016 417 Beach Advisory 59.36 5.12 n/a n/a 92
04/18/2016 145 Beach Advisory 56.66 1.67 n/a n/a 100
03/07/2016 266 Beach Advisory 43.16 3.5 n/a n/a 98.1
02/01/2016 657 Beach Advisory 40.46 3.59 n/a n/a 95.6
01/12/2016 388 Beach Advisory 39.74 11.2 n/a n/a 90.7
12/07/2015 156 Beach Advisory 51.26 4.02 n/a n/a 89.9
11/16/2015 96 Beach Advisory 56.48 5.57 n/a n/a 89.4
10/27/2015 132 Beach Advisory 58.64 10.18 n/a n/a 86.7
10/12/2015 <10 Acceptable 65.858 8.62 5.47 52.5 92.7
10/03/2015 <10 Acceptable n/a n/a n/a n/a n/a
09/22/2015 63 Beach Advisory 70.16 8.19 n/a n/a 91.7
09/11/2015 31 Acceptable 76.604 9.75 7.95 65.8 89.4
09/05/2015 31 Acceptable n/a n/a n/a n/a n/a
08/18/2015 10 Acceptable 82.22 8.69 n/a n/a 109.1
08/12/2015 31 Acceptable 78.584 9.41 22.23 26 115.1
08/01/2015 <10 Acceptable n/a n/a n/a n/a n/a
07/08/2015 <10 Acceptable 79.862 2.97 41.41 26.3 136.9
07/04/2015 10 Acceptable n/a n/a n/a n/a n/a
06/11/2015 20 Acceptable 73.796 5.27 13.77 25.1 115.5
06/06/2015 31 Acceptable n/a n/a n/a n/a n/a
05/27/2015 86 Beach Advisory 71.42 5.17 n/a n/a 114.6
05/12/2015 3448 Beach Advisory 67.442 5.75 3.69 65.6 94.3
05/05/2015 521 Beach Advisory 60.08 6.41 n/a n/a 95.4
05/02/2015 279 Beach Advisory n/a n/a n/a n/a n/a
04/06/2015 144 Beach Advisory 43.34 2.79 n/a n/a 94.2
03/11/2015 1054 Beach Advisory 36.32 7.43 n/a n/a 90.7
02/23/2015 683 Beach Advisory 31.82 7.94 n/a n/a 91
01/05/2015 464 Beach Advisory 37.22 1.15 n/a n/a 92.1
12/01/2014 480 Beach Advisory 46.58 6.84 n/a n/a 89
11/10/2014 441 Beach Advisory 52.88 7.52 n/a n/a 84.9
10/27/2014 816 Beach Advisory 55.4 8.05 n/a n/a 86
10/13/2014 <10 Acceptable 63.59 9.11 0.2 79.8 86.9
10/04/2014 10 Acceptable n/a n/a n/a n/a n/a
09/22/2014 20 Acceptable 70.88 10.4 n/a n/a n/a
09/08/2014 10 Acceptable 75.812 7 31.09 26.2 111.3
09/06/2014 10 Acceptable n/a n/a n/a n/a n/a
08/26/2014 <10 Acceptable 77.18 6.73 n/a n/a 95.2
08/12/2014 10 Acceptable 77.504 7.55 8.53 76 85
08/02/2014 98 Beach Advisory n/a n/a n/a n/a n/a
07/15/2014 1553 Beach Advisory 79.52 4.69 n/a n/a 79.7
07/08/2014 20 Acceptable 77.252 2.85 6.4 26.4 87.9
07/05/2014 <10 Acceptable n/a n/a n/a n/a n/a
06/24/2014 41 Acceptable 74.12 3.53 n/a n/a 79.7
06/13/2014 10 Acceptable 68.198 7.55 34.65 71 95.5
06/07/2014 <10 Acceptable n/a n/a n/a n/a n/a
05/27/2014 41 Acceptable n/a n/a n/a n/a n/a
05/13/2014 134 Beach Advisory 59.63 3.62 3.63 101.5 94.7
05/06/2014 318 Beach Advisory n/a n/a n/a n/a n/a
05/03/2014 10 Acceptable n/a n/a n/a n/a n/a
04/21/2014 613 Beach Advisory 52.34 0.17 n/a n/a 94.4
03/31/2014 193 Beach Advisory n/a n/a n/a n/a n/a
02/24/2014 2014 Beach Advisory 37.22 6.27 n/a n/a 99.4
01/27/2014 1119 Beach Advisory 32.9 3.49 n/a n/a 93.5
12/02/2013 1722 Beach Advisory 43.9 6.4 n/a n/a 84.8
11/13/2013 889 Beach Advisory 47.84 6.29 n/a n/a 88.6
10/28/2013 359 Beach Advisory 54.68 7.06 n/a n/a 84.2
10/17/2013 63 Beach Advisory 65.822 9.89 3.94 37 84.2
10/12/2013 31 Acceptable n/a n/a n/a n/a n/a
09/30/2013 10 Acceptable 69.98 5.9 n/a n/a 96.7
09/19/2013 10 Acceptable 68.486 7.03 6.01 30.3 87.7
09/14/2013 20 Acceptable n/a n/a n/a n/a n/a
08/28/2013 10 Acceptable 77.54 6.02 n/a n/a 88.3
08/15/2013 20 Acceptable 73.886 5.41 10.66 30.7 91.3
08/10/2013 10 Acceptable n/a n/a n/a n/a n/a
07/24/2013 10 Acceptable 82.04 6.8 n/a n/a n/a
07/18/2013 10 Acceptable 81.824 4.25 6.48 19.7 79.6
07/13/2013 10 Acceptable n/a n/a n/a n/a n/a
06/27/2013 10 Acceptable 75.2 1.4 n/a n/a n/a
06/20/2013 52 Acceptable 69.854 0.52 6.31 38.7 85.9
06/15/2013 20 Acceptable n/a n/a n/a n/a n/a
05/30/2013 10 Acceptable 66.488 2.62 2.15 49.3 92.2
05/04/2013 75 Beach Advisory n/a n/a n/a n/a n/a
04/22/2013 959 Beach Advisory 51.44 1.14 n/a n/a 92.4
03/18/2013 211 Beach Advisory 36.86 1.17 n/a n/a 90.2
02/25/2013 836 Beach Advisory 36.86 6.64 n/a n/a 91.7
12/10/2012 880 Beach Advisory 46.76 6.87 n/a n/a 89.9
10/11/2012 20 Acceptable 62.348 5.62 5.66 24.4 85.7
10/06/2012 20 Acceptable n/a n/a n/a n/a n/a
09/11/2012 20 Acceptable 72.374 7.23 6.57 18.8 87.4
09/08/2012 20 Acceptable n/a n/a n/a n/a n/a
08/14/2012 <10 Acceptable 81.374 9.33 6.36 13 101.8
08/04/2012 <10 Acceptable n/a n/a n/a n/a n/a
07/17/2012 <10 Acceptable 81.644 10.25 20.44 68.5 119.3
07/14/2012 20 Acceptable n/a n/a n/a n/a n/a
06/12/2012 20 Acceptable 72.518 3.68 12.25 31.6 94.2
06/02/2012 97 Beach Advisory n/a n/a n/a n/a n/a
05/16/2012 41 Acceptable 64.526 1.31 6.11 28.2 102
04/09/2012 657 Beach Advisory 53.78 8.11 n/a n/a 98.2
03/05/2012 259 Beach Advisory 42.98 4.25 n/a n/a 98.5
02/06/2012 448 Beach Advisory 41.36 3.59 n/a n/a 98.7
01/03/2012 1246 Beach Advisory 39.2 0.41 n/a n/a 97.1
12/05/2011 465 Beach Advisory 48.74 0.74 n/a n/a 94.6
11/07/2011 262 Beach Advisory 54.14 1.74 n/a n/a 92.1
10/20/2011 20 Acceptable 63.716 1.08 0.38 78.2 94.3
09/15/2011 52 Acceptable 71.762 0.12 1.97 127.4 78
08/17/2011 <10 Acceptable 79.898 6.64 4.01 66.7 89.4
07/18/2011 <10 Acceptable 80.276 4.83 3.18 82.5 n/a
06/28/2011 10 Acceptable 77.864 1.99 7.77 24.3 92.1
06/02/2011 10 Acceptable 71.96 1.77 n/a n/a 105.3
05/17/2011 189 Beach Advisory 65.858 6.31 2.41 29.2 83.6
05/02/2011 557 Beach Advisory 55.94 0.1 n/a n/a 92.5
04/04/2011 327 Beach Advisory 44.6 4.83 n/a n/a 94.1
03/07/2011 2481 Beach Advisory 40.1 1.45 n/a n/a 96.1
02/07/2011 990 Beach Advisory 34.7 5.31 n/a n/a 92
01/11/2011 1541 Beach Advisory 33.08 2.62 n/a n/a 93.2
01/03/2011 1607 Beach Advisory 33.62 4.56 n/a n/a 92.8
12/29/2010 1333 Beach Advisory 34.7 3.3 n/a n/a 91.5
12/20/2010 546 Beach Advisory 38.3 4.35 n/a n/a 91
12/13/2010 984 Beach Advisory 42.98 1.9 n/a n/a 92.9
12/06/2010 1106 Beach Advisory 39.56 0.23 n/a n/a 91
11/29/2010 4106 Beach Advisory 46.4 2.46 n/a n/a 86.5
11/22/2010 1234 Beach Advisory 49.1 4.8 n/a n/a 86.5
11/16/2010 933 Beach Advisory 52.34 2.7 n/a n/a 88.5
11/08/2010 4106 Beach Advisory 47.7 1.75 n/a n/a 90.4
11/01/2010 2755 Beach Advisory 55.2 1.68 n/a n/a 86.3
10/25/2010 1616 Beach Advisory 59.54 4.15 n/a n/a 78.7
10/18/2010 379 Beach Advisory 59.9 2.55 n/a n/a 85.9
10/13/2010 <10 Acceptable 63.896 0.25 4.89 24.9 91
10/04/2010 171 Beach Advisory 66.2 4.21 n/a n/a 91.2
09/27/2010 20 Acceptable 68.72 9.58 n/a n/a 81.7
09/20/2010 61 Beach Advisory 69.62 6.61 n/a n/a 93.1
09/12/2010 10 Acceptable 71.366 8.67 5.54 59.8 78.9
09/06/2010 62 Beach Advisory n/a n/a n/a n/a n/a
08/29/2010 481 Beach Advisory n/a n/a n/a n/a n/a
08/24/2010 860 Beach Advisory n/a n/a n/a n/a n/a
08/18/2010 41 Acceptable 78.566 9.44 6.82 19.4 83
08/10/2010 84 Beach Advisory 79.7 9.51 n/a n/a 93
08/03/2010 30 Acceptable 78.08 7.77 n/a n/a 99.1
07/26/2010 1479 Beach Advisory 79.52 8.45 n/a n/a 136.2
07/22/2010 74 Beach Advisory 81.158 9.16 48.47 37.8 145.5
07/06/2010 10 Acceptable 82.04 5.02 n/a n/a 120.3
06/28/2010 84 Beach Advisory 81.68 7.84 n/a n/a 92.4
06/21/2010 10 Acceptable 75.92 6.98 n/a n/a 87.4
06/16/2010 10 Acceptable 72.59 7.79 6.15 52.8 82.9
06/08/2010 10 Acceptable 71.96 5.62 n/a n/a 110.6
06/01/2010 63 Beach Advisory 73.76 7.14 n/a n/a 131.7
05/24/2010 41 Acceptable 66.38 6.38 n/a n/a 93.1
05/22/2010 10 Acceptable 66.146 6.5 7.19 23.4 96.7
05/17/2010 <10 Acceptable 62.96 6.12 n/a n/a 87.7
05/10/2010 161 Beach Advisory 57.02 4.85 n/a n/a 93.2
05/03/2010 241 Beach Advisory 62.78 2.93 n/a n/a 95
04/26/2010 243 Beach Advisory 55.76 5.09 n/a n/a 92.5
04/19/2010 345 Beach Advisory 53.06 3.93 n/a n/a 91.9
04/12/2010 816 Beach Advisory 53.06 1.33 n/a n/a 90.5
04/06/2010 591 Beach Advisory 52.7 0.11 n/a n/a 93.9
03/29/2010 3255 Beach Advisory 46 0.13 n/a n/a 95.2
03/22/2010 1333 Beach Advisory 48.4 0.48 n/a n/a 94.3
03/17/2010 762 Beach Advisory 42.44 2.76 n/a n/a 93.4
03/08/2010 441 Beach Advisory 39.74 2.9 n/a n/a 96.8
03/01/2010 583 Beach Advisory 37.04 6.84 n/a n/a 94
02/22/2010 1720 Beach Advisory 36.14 5.56 n/a n/a 94.8
02/15/2010 591 Beach Advisory 33.8 6.47 n/a n/a 90.6
02/08/2010 473 Beach Advisory 32.9 1.31 n/a n/a 94.1
02/02/2010 605 Beach Advisory 33.98 0.77 n/a n/a 92.6
01/26/2010 573 Beach Advisory 38.12 6.56 n/a n/a 96.1
01/19/2010 598 Beach Advisory 35.6 5.27 n/a n/a 94.2
01/12/2010 266 Beach Advisory 33.26 6.31 n/a n/a 90.8
01/05/2010 794 Beach Advisory 31.82 3.56 n/a n/a n/a
12/28/2009 959 Beach Advisory 39.56 5.56 n/a n/a 94.3
12/21/2009 1723 Beach Advisory 35.24 2.57 n/a n/a 91.1
12/15/2009 512 Beach Advisory 43.34 2.43 n/a n/a 90.4
12/08/2009 1106 Beach Advisory 44.78 3.95 n/a n/a 89
12/01/2009 1234 Beach Advisory 46.58 6.83 n/a n/a 89.5
11/23/2009 292 Beach Advisory 50.36 3.03 n/a n/a 93
11/17/2009 624 Beach Advisory 51.44 4.21 n/a n/a 92.1
11/10/2009 908 Beach Advisory 54.32 2.05 n/a n/a 87.7
11/04/2009 1904 Beach Advisory 53.24 4.24 n/a n/a 87.3
10/27/2009 161 Beach Advisory 59.54 3.13 n/a n/a 91.4
10/20/2009 364 Beach Advisory 53.78 7.53 3.01 58.1 86.3
10/13/2009 41 Acceptable 61.7 5.96 n/a n/a 85.7
10/06/2009 31 Acceptable 61.88 7 n/a n/a 80.9
09/29/2009 20 Acceptable 68.36 6.49 n/a n/a 93.3
09/22/2009 31 Acceptable 70.7 7.27 n/a n/a 82
09/15/2009 <10 Acceptable 72.266 6.71 2.46 46.7 84
09/08/2009 <10 Acceptable 73.58 6.74 n/a n/a 79.2
08/29/2009 <10 Acceptable 75.74 2.8 n/a n/a 82.2
08/22/2009 144 Beach Advisory 82.22 5.7 n/a n/a 89.7
08/21/2009 <10 Acceptable 81.734 5.56 12.09 46.6 97
07/29/2009 10 Acceptable 79.268 3.67 3.78 21.3 83.8
07/19/2009 <10 Acceptable 78.98 4.2 n/a n/a 122.4
07/13/2009 10 Acceptable 73.58 4.1 n/a n/a 101.5
07/06/2009 <10 Acceptable 77.18 n/a n/a n/a n/a
06/29/2009 <10 Acceptable 74.3 0.2 n/a n/a 96.4
06/23/2009 20 Acceptable 70.988 0.58 1.43 60.8 96.3
06/16/2009 20 Acceptable 68.9 3.2 n/a n/a n/a
06/09/2009 197 Beach Advisory 62.96 4.9 n/a n/a n/a
06/06/2009 <10 Acceptable n/a n/a n/a n/a n/a
06/04/2009 14 Acceptable 62.96 4.9 n/a n/a n/a
05/27/2009 20 Acceptable 62.96 4.9 n/a n/a n/a
05/19/2009 <10 Acceptable 59.72 2.2 n/a n/a n/a
05/13/2009 75 Beach Advisory 63.68 2.22 3.43 56.1 101.8
05/05/2009 183 Beach Advisory 57.56 4.8 n/a n/a n/a
04/29/2009 108 Beach Advisory 58.46 6 n/a n/a n/a
04/22/2009 203 Beach Advisory 50.9 4.3 n/a n/a n/a
04/13/2009 473 Beach Advisory 44.42 0.2 n/a n/a n/a
04/08/2009 364 Beach Advisory 44.06 0.8 n/a n/a n/a
03/31/2009 336 Beach Advisory 42.8 5.5 n/a n/a n/a
03/25/2009 280 Beach Advisory 39.2 5.3 n/a n/a n/a
03/17/2009 253 Beach Advisory 43.2 0.4 n/a n/a n/a
03/10/2009 213 Beach Advisory 38.12 3.2 n/a n/a n/a
03/05/2009 341 Beach Advisory 33.62 4.5 n/a n/a n/a
02/26/2009 210 Beach Advisory 35.06 6.4 n/a n/a n/a
02/16/2009 340 Beach Advisory 35.78 3.2 n/a n/a n/a
02/11/2009 930 Beach Advisory 36.14 5.9 n/a n/a n/a
02/06/2009 290 Beach Advisory 31.82 5.3 n/a n/a n/a
02/05/2009 75 Beach Advisory 31.64 4.7 n/a n/a n/a
01/27/2009 987 Beach Advisory n/a n/a n/a n/a n/a
10/21/2008 432 Beach Advisory 57.038 9.8 1.96 10.5 88.6
09/28/2008 860 Beach Advisory n/a n/a n/a n/a n/a
09/27/2008 301 Beach Advisory n/a n/a n/a n/a n/a
09/26/2008 80 Beach Advisory n/a n/a n/a n/a n/a
09/23/2008 10 Acceptable 68.6 6.79 1.88 23.2 90
09/19/2008 <10 Acceptable n/a n/a n/a n/a n/a
09/10/2008 40 Acceptable n/a n/a n/a n/a n/a
09/08/2008 50 Acceptable n/a n/a n/a n/a n/a
09/07/2008 130 Beach Advisory n/a n/a n/a n/a n/a
09/06/2008 1620 Beach Advisory n/a n/a n/a n/a n/a
09/06/2008 10 Acceptable n/a n/a n/a n/a n/a
09/05/2008 <10 Acceptable n/a n/a n/a n/a n/a
08/28/2008 20 Acceptable n/a n/a n/a n/a n/a
08/22/2008 99 Beach Advisory n/a n/a n/a n/a n/a
08/21/2008 30 Acceptable 74.4 6.18 2.75 21.1 76.7
08/16/2008 12030 Beach Advisory n/a n/a n/a n/a n/a
08/06/2008 934 Beach Advisory n/a n/a n/a n/a n/a
07/31/2008 13 Acceptable n/a n/a n/a n/a n/a
07/25/2008 11 Acceptable 81.86 7.1 n/a n/a n/a
07/23/2008 250 Beach Advisory n/a n/a n/a n/a n/a
07/20/2008 <10 Acceptable n/a n/a n/a n/a n/a
07/15/2008 <10 Acceptable 79.088 6.2 7.12 30 107
07/11/2008 <10 Acceptable 81.14 6.1 n/a n/a n/a
07/10/2008 20 Acceptable n/a n/a n/a n/a n/a
07/03/2008 727 Beach Advisory n/a n/a n/a n/a n/a
07/01/2008 41 Acceptable 77.18 8 n/a n/a n/a
06/25/2008 1218 Beach Advisory 74.246 7.55 2.67 19.2 83.6
06/20/2008 5 Acceptable 73.22 7.7 n/a n/a n/a
06/19/2008 11 Acceptable n/a n/a n/a n/a n/a
06/09/2008 4 Acceptable 78.08 7 n/a n/a n/a
05/29/2008 15 Acceptable n/a n/a n/a n/a n/a
05/20/2008 31 Acceptable 57.668 4.88 1.73 70.1 89.9
05/19/2008 30 Acceptable 60.152 4.32 1.7 57.5 91.9
05/16/2008 10 Acceptable n/a n/a n/a n/a n/a
05/16/2008 10 Acceptable n/a n/a n/a n/a n/a
09/09/2007 35 Acceptable 77.162 11.18 5.295 44.8 87.7
09/06/2007 21 Acceptable 74.678 10.38 3.16 30.5 81.1
08/23/2007 7 Acceptable 71.438 7.04 2.91 46.7 80.4
08/16/2007 <10 Acceptable 79.61 8.79 5.76 28 94.9
07/16/2007 83 Beach Advisory 77.504 8.87 7.93 58 95.1
07/11/2007 43 Acceptable 78.242 9.48 3.65 27.9 85.7
06/18/2007 11 Acceptable n/a n/a n/a n/a n/a
05/21/2007 14 Acceptable 61.79 2.14 1.53 165.3 91.9
04/25/2007 333 Beach Advisory 48.956 0.11 1.38 297.6 103.7
04/18/2007 1104 Beach Advisory 42.962 0.35 1.34 141.3 99.2
12/06/2006 132 Beach Advisory 43.61 0.95 1.38 14.1 94.2
10/28/2006 1275 Beach Advisory n/a n/a n/a n/a n/a
10/18/2006 1120 Beach Advisory 61.592 5.54 3.2 25.6 87.3
10/17/2006 200 Beach Advisory n/a n/a n/a n/a n/a

Water Quality*

Acceptable (0–60) Beach Advisory (61+)

*Single sample thresholds;
Enterococcus count per 100mL

Prior Four Day Rainfall
(in inches)

Dry Weather (0–0.25) Wet Weather (0.25+)

Enterococcus is an EPA-approved fecal contamination indicator.

Samples taken by Riverkeeper, Lamont-Doherty Earth Observatory and CUNY Queens College staff, and processed on the Riverkeeper vessel, according to the 2014 Quality Assurance Project Plan.

Rainfall data comes from wunderground.com. Wet weather is a common trigger of fecal contamination.

What do the Numbers Mean?

Water Quality scoring is based on the 2012 Recreational Water Quality Criteria from the US Environmental Protection Agency (EPA) for safe swimming. Learn More

About this location:

Piermont, NY
Piermont Pier is used heavily for recreational and subsistence fishing and crabbing. There is also boating and kayaking.

Agencies Responsible:

Rockland County Dept. of Health: 845-364-2900 and NYSDEC Region 3: 914-428-2505

Tell Gov. Hochul to block invasive species at the Erie and Champlain canals
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