Water Quality
Water Quality > Hudson River Estuary Data > Rockland County & Westchester County Sites > Nyack Launch Ramp

Nyack Launch Ramp

Nyack Launch Ramp
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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

227 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
10/17/2023 31 Acceptable 0.0 0.0 0.0 0.6 0.6
09/19/2023 52 Acceptable 0.0 1.0 0.2 0.1 1.3
08/22/2023 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
07/18/2023 10 Acceptable 0.0 0.0 1.4 0.2 1.6
06/27/2023 203 Beach Advisory 1.3 1.6 0.0 0.3 3.1
05/02/2023 20 Acceptable 0.0 0.2 2.2 1.6 4.0
10/10/2022 10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/10/2022 <10 Acceptable 0.0 0.0 0.0 2.1 2.1
08/12/2022 <10 Acceptable 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
06/14/2022 119 Beach Advisory 0.1 0.0 0.0 0.0 0.1
05/24/2022 85 Beach Advisory 0.0 0.0 0.0 0.0 0.0
12/06/2021 52 Acceptable 0.1 0.0 0.0 0.0 0.1
11/09/2021 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
10/29/2021 379 Beach Advisory 0.0 0.0 0.0 3.4 3.4
10/18/2021 20 Acceptable 0.0 0.0 0.7 0.0 0.7
09/27/2021 20 Acceptable 0.0 0.0 0.0 1.0 1.0
09/14/2021 30 Acceptable 0.0 0.0 0.0 0.0 0.0
08/24/2021 41 Acceptable 0.4 1.0 1.4 0.1 2.9
08/17/2021 <10 Acceptable 0.0 0.0 0.0 0.1 0.1
07/27/2021 20 Acceptable 0.0 0.0 0.7 0.0 0.7
07/20/2021 <10 Acceptable 0.0 0.1 0.3 0.9 1.3
06/29/2021 1076 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/08/2021 20 Acceptable 0.0 0.0 0.0 0.0 0.0
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 10 Acceptable 0.1 0.2 0.0 0.0 0.3
03/02/2021 52 Acceptable 0.0 0.3 0.3 0.4 1.0
02/25/2021 10 Acceptable 0.0 0.0 0.5 0.0 0.5
01/14/2021 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
12/01/2020 187 Beach Advisory 0.0 0.3 0.0 0.0 0.3
11/17/2020 62 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 0.0
10/14/2020 10 Acceptable 0.0 0.3 0.3 0.0 0.6
09/22/2020 41 Acceptable 0.0 0.0 0.0 0.0 0.0
09/18/2020 10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/25/2020 52 Acceptable 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 10 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 10 Acceptable 0.0 0.3 0.0 0.0 0.3
02/12/2020 41 Acceptable 0.0 0.1 0.2 0.0 0.3
01/15/2020 52 Acceptable 0.0 0.0 0.0 0.2 0.2
12/05/2019 41 Acceptable 0.3 0.0 0.0 0.0 0.3
11/20/2019 85 Beach Advisory 0.0 0.4 0.8 0.0 1.2
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
09/18/2019 <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
08/06/2019 <10 Acceptable 0.0 0.0 0.2 0.9 1.1
07/23/2019 609 Beach Advisory 0.6 2.0 0.0 0.0 2.6
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
06/04/2019 20 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
05/07/2019 41 Acceptable 0.0 0.1 1.1 0.1 1.3
04/29/2019 10 Acceptable 0.0 0.1 0.3 1.1 1.5
03/14/2019 20 Acceptable 0.0 0.0 0.0 0.0 0.0
02/26/2019 187 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 62 Beach Advisory 0.0 0.9 0.2 0.0 1.1
11/08/2018 63 Beach Advisory 0.0 0.0 0.6 0.3 0.9
10/24/2018 74 Beach Advisory 0.0 0.0 0.0 0.1 0.1
10/10/2018 <10 Acceptable 0.0 0.0 0.1 0.0 0.1
09/20/2018 30 Acceptable 0.0 0.0 1.2 0.0 1.2
09/10/2018 776 Beach Advisory 1.7 0.1 0.1 0.0 1.9
08/14/2018 10 Acceptable 0.0 0.8 0.2 1.9 2.9
08/09/2018 10 Acceptable 0.0 0.4 0.1 0.0 0.5
07/23/2018 1529 Beach Advisory 0.6 1.4 0.1 0.0 2.1
07/17/2018 199 Beach Advisory 1.6 0.1 0.3 0.5 2.5
06/21/2018 318 Beach Advisory 0.2 0.0 0.1 0.1 0.4
06/13/2018 <10 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
05/06/2018 <10 Acceptable 0.2 0.0 0.0 0.3 0.5
04/24/2018 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
03/26/2018 10 Acceptable 0.0 0.0 0.0 0.0 0.0
02/26/2018 175 Beach Advisory 0.0 0.9 0.3 0.2 1.4
01/24/2018 563 Beach Advisory 0.0 1.1 0.1 0.0 1.2
12/04/2017 107 Beach Advisory 0.0 0.0 0.0 0.0 0.0
11/16/2017 243 Beach Advisory 0.1 0.0 0.0 0.0 0.1
10/16/2017 <10 Acceptable 0.1 0.0 0.0 0.0 0.1
10/11/2017 146 Beach Advisory 0.0 0.0 0.3 0.1 0.4
09/29/2017 86 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
08/14/2017 <10 Acceptable 0.0 0.0 0.4 0.3 0.7
08/07/2017 164 Beach Advisory 0.5 0.0 0.3 0.0 0.8
07/10/2017 <10 Acceptable 0.0 0.0 0.0 2.2 2.2
07/06/2017 74 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/12/2017 41 Acceptable 0.0 0.0 0.0 0.0 0.0
06/06/2017 435 Beach Advisory 0.2 0.2 0.2 0.0 0.6
05/22/2017 10 Acceptable 0.0 0.0 0.0 0.0 0.0
05/16/2017 31 Acceptable 0.0 0.0 0.1 1.7 1.8
04/13/2017 10 Acceptable 0.0 0.1 0.0 0.0 0.1
04/04/2017 96 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 <10 Acceptable 0.0 0.1 0.0 0.0 0.1
01/11/2017 74 Beach Advisory 0.5 0.0 0.0 0.0 0.5
12/01/2016 209 Beach Advisory 0.3 1.2 1.5 0.0 3.0
11/16/2016 203 Beach Advisory 0.0 2.6 0.0 0.0 2.6
10/24/2016 98 Beach Advisory 0.2 0.0 0.8 0.8 1.8
10/13/2016 20 Acceptable 0.1 0.0 0.0 0.0 0.1
09/28/2016 110 Beach Advisory 0.0 0.4 0.0 0.0 0.4
09/14/2016 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/30/2016 134 Beach Advisory 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
07/13/2016 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
07/05/2016 213 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
06/07/2016 109 Beach Advisory 0.0 0.0 1.7 0.0 1.7
05/20/2016 10 Acceptable 0.0 0.0 0.0 0.0 0.0
05/09/2016 20 Acceptable 0.0 0.1 0.0 0.8 0.9
04/18/2016 10 Acceptable 0.0 0.0 0.0 0.0 0.0
03/07/2016 63 Beach Advisory 0.0 0.0 0.0 0.0 0.0
02/01/2016 41 Acceptable 0.0 0.0 0.0 0.0 0.0
01/12/2016 52 Acceptable 0.0 0.0 1.1 0.0 1.1
12/09/2015 10 Acceptable 0.0 0.0 0.0 0.0 0.0
12/07/2015 7701 Beach Advisory 0.0 0.0 0.0 0.0 0.0
11/16/2015 41 Acceptable 0.0 0.0 0.0 0.0 0.0
10/27/2015 41 Acceptable 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
09/22/2015 537 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/11/2015 20 Acceptable 0.3 1.3 0.1 0.0 1.7
08/18/2015 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/12/2015 <10 Acceptable 0.0 1.0 0.0 0.0 1.0
07/08/2015 10 Acceptable 0.0 0.1 0.0 0.0 0.1
06/11/2015 <10 Acceptable 0.0 0.0 0.2 0.2 0.4
05/27/2015 341 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/12/2015 31 Acceptable 0.0 0.0 0.0 0.0 0.0
05/05/2015 10 Acceptable 0.0 0.0 0.0 0.0 0.0
04/06/2015 10 Acceptable 0.0 0.0 0.2 0.0 0.2
03/11/2015 52 Acceptable 0.0 0.2 0.0 0.1 0.3
01/05/2015 30 Acceptable 0.0 0.4 0.4 0.0 0.8
12/01/2014 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
11/10/2014 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
10/27/2014 30 Acceptable 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
09/22/2014 148 Beach Advisory 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
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
07/15/2014 336 Beach Advisory 0.0 1.7 0.0 0.0 1.7
07/08/2014 63 Beach Advisory 0.2 0.0 0.0 0.0 0.2
06/24/2014 63 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/13/2014 488 Beach Advisory 1.4 0.0 0.1 0.0 1.5
05/27/2014 116 Beach Advisory 0.0 0.0 0.0 0.1 0.1
05/13/2014 <10 Acceptable 0.0 0.0 0.1 0.3 0.4
04/21/2014 31 Acceptable 0.0 0.0 0.0 0.0 0.0
03/31/2014 355 Beach Advisory 0.1 1.0 1.5 0.1 2.7
02/24/2014 63 Beach Advisory 0.0 0.0 0.0 0.1 0.1
01/27/2014 86 Beach Advisory 0.0 0.0 0.0 0.0 0.0
12/02/2013 85 Beach Advisory 0.0 0.0 0.0 0.0 0.0
11/13/2013 20 Acceptable 0.0 0.1 0.0 0.0 0.1
10/28/2013 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
10/17/2013 341 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/30/2013 52 Acceptable 0.0 0.0 0.0 0.0 0.0
09/19/2013 30 Acceptable 0.0 0.0 0.0 0.0 0.0
08/28/2013 98 Beach Advisory 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
07/24/2013 169 Beach Advisory 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
06/27/2013 132 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/20/2013 <10 Acceptable 0.0 0.0 0.3 0.2 0.5
05/30/2013 10 Acceptable 0.0 0.0 0.4 0.0 0.4
04/22/2013 20 Acceptable 0.0 0.0 0.1 0.0 0.1
03/18/2013 75 Beach Advisory 0.0 0.0 0.0 0.0 0.0
02/25/2013 20 Acceptable 0.0 0.0 0.1 0.0 0.1
01/14/2013 <10 Acceptable 0.1 0.0 0.0 0.4 0.5
12/10/2012 301 Beach Advisory 0.1 0.2 0.2 0.1 0.6
11/08/2012 364 Beach Advisory 0.0 0.1 0.0 0.0 0.1
11/06/2012 41 Acceptable 0.0 0.0 0.0 0.0 0.0
10/11/2012 31 Acceptable 0.0 0.1 0.0 0.0 0.1
09/11/2012 10 Acceptable 0.0 0.0 0.0 1.4 1.4
08/14/2012 10 Acceptable 0.0 0.0 0.0 0.0 0.0
07/17/2012 <10 Acceptable 0.0 0.0 0.2 0.0 0.2
06/12/2012 98 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/16/2012 <10 Acceptable 0.1 0.4 0.1 0.0 0.6
04/09/2012 10 Acceptable 0.0 0.0 0.0 0.0 0.0
03/05/2012 63 Beach Advisory 0.0 0.0 0.1 0.1 0.2
02/06/2012 216 Beach Advisory 0.0 0.0 0.0 0.0 0.0
01/03/2012 613 Beach Advisory 0.0 0.0 0.1 0.0 0.1
12/05/2011 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
11/07/2011 10 Acceptable 0.0 0.0 0.0 0.0 0.0
10/20/2011 121 Beach Advisory 0.0 0.1 0.0 0.0 0.1
09/15/2011 41 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
08/15/2011 228 Beach Advisory 0.0 3.4 0.0 0.0 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 30 Acceptable 0.0 0.0 0.0 0.2 0.2
05/17/2011 663 Beach Advisory 1.2 0.0 0.8 0.0 2.0
05/02/2011 20 Acceptable 0.0 0.0 0.0 0.4 0.4
04/04/2011 31 Acceptable 0.0 0.0 0.0 0.2 0.2
03/07/2011 767 Beach Advisory 0.2 2.1 0.0 0.0 2.3
02/07/2011 238 Beach Advisory 0.0 0.1 0.2 0.1 0.4
01/03/2011 218 Beach Advisory 0.0 0.0 0.0 0.1 0.1
12/06/2010 122 Beach Advisory 0.0 0.0 0.0 0.0 0.0
11/08/2010 63 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/13/2010 73 Beach Advisory 0.0 0.1 0.3 0.0 0.4
09/12/2010 30 Acceptable 0.0 0.0 0.0 0.0 0.0
08/18/2010 <10 Acceptable 0.0 0.0 0.2 0.3 0.5
08/10/2010 41 Acceptable 0.0 0.0 0.0 0.0 0.0
07/22/2010 10 Acceptable 0.0 0.1 0.0 1.4 1.5
06/28/2010 73 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/16/2010 30 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
05/10/2010 75 Beach Advisory 0.0 0.0 0.1 0.0 0.1
04/06/2010 74 Beach Advisory 0.0 0.0 0.0 0.0 0.0
03/08/2010 20 Acceptable 0.0 0.0 0.0 0.0 0.0
01/26/2010 85 Beach Advisory 0.0 1.3 0.0 0.0 1.3
12/28/2009 384 Beach Advisory 0.0 0.3 1.1 0.1 1.5
11/23/2009 20 Acceptable 0.0 0.0 0.0 0.4 0.4
10/20/2009 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
08/22/2009 383 Beach Advisory 0.6 0.6 0.0 0.0 1.2
08/21/2009 85 Beach Advisory 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
06/23/2009 <10 Acceptable 0.0 0.0 0.6 0.5 1.1
06/06/2009 <10 Acceptable 0.0 0.8 0.4 0.4 1.6
05/13/2009 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/07/2008 120 Beach Advisory 0.0 4.8 0.0 0.0 4.8
08/21/2008 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
07/20/2008 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
07/15/2008 27 Acceptable 0.0 1.1 0.0 0.0 1.1
06/16/2008 214 Beach Advisory 0.0 0.0 1.7 0.0 1.7

Entero Count (fecal indicator) and Rainfall Correlation

227 Samples taken

All Water Quality Parameters

227 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
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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
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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
10/17/2023 31 Acceptable 15.97 3.37 1.06 4.1 105.5
09/19/2023 52 Acceptable 21.48 6.41 2.37 n/a n/a
08/22/2023 <10 Acceptable 24.52 3.32 7.38 6.2 93.6
07/18/2023 10 Acceptable 26.82 0.61 5.32 24.4 87.3
06/27/2023 203 Beach Advisory 72.8 6.9 4.2 2.2 95.9
05/02/2023 20 Acceptable 54.5 2.0 2.1 22.2 92.5
10/10/2022 10 Acceptable 62.2 9.9 3.8 10.9 87.1
09/10/2022 <10 Acceptable 78.2 10.2 4.9 10.5 83.5
08/12/2022 <10 Acceptable 81.3 10.3 5.2 9.3 93.8
07/15/2022 10 Acceptable 79.9 9.7 6.5 8.7 103.5
06/14/2022 119 Beach Advisory 71.4 6.3 23.6 22.2 113.5
05/24/2022 85 Beach Advisory 66.1 6.5 2 10.9 97.9
12/06/2021 52 Acceptable 46.0 5.5 n/a n/a 90
11/09/2021 <10 Acceptable 54.5 1.2 n/a n/a 88
10/29/2021 379 Beach Advisory 59.5 1.0 2.7 18 91
10/18/2021 20 Acceptable 65.5 3.3 n/a n/a 86
09/27/2021 20 Acceptable 72.0 1.6 n/a n/a 95
09/14/2021 30 Acceptable 73.8 2.0 9.0 15 89
08/24/2021 41 Acceptable 79.3 2.8 n/a n/a 90
08/17/2021 <10 Acceptable 79.1 6.2 7.7 12 96
07/27/2021 20 Acceptable 81.5 0.2 n/a n/a 137
07/20/2021 <10 Acceptable 80.6 1.0 11.0 10 104
06/29/2021 1076 Beach Advisory 78.6 6.5 n/a n/a 76
06/08/2021 20 Acceptable 72.1 4.7 4.4 14 93
05/25/2021 10 Acceptable 64.2 6.4 n/a n/a 99
05/17/2021 10 Acceptable 66.8 1.9 5.3 12 117
04/01/2021 10 Acceptable 47.5 3.3 n/a n/a 96
03/02/2021 52 Acceptable 36.1 7.8 n/a n/a 93
02/25/2021 10 Acceptable 38.1 6.5 n/a n/a 96
01/14/2021 <10 Acceptable 37.8 4.0 n/a n/a 91
12/01/2020 187 Beach Advisory 52.5 7.0 n/a n/a 91
11/17/2020 62 Beach Advisory 52.5 7.8 n/a n/a 88
10/27/2020 52 Acceptable 60.4 8.9 n/a n/a 87
10/14/2020 10 Acceptable 64.7 8.8 2.2 15 92
09/22/2020 41 Acceptable 64.0 11.1 n/a n/a 96
09/18/2020 10 Acceptable 71.2 10.8 3.5 24 84
08/25/2020 52 Acceptable 80.6 9.9 n/a n/a 76
08/14/2020 10 Acceptable 84.6 5.7 41.0 12 152
07/28/2020 10 Acceptable 84.7 9.4 n/a n/a 122
07/14/2020 <10 Acceptable 83.0 8.0 33.5 7 158
06/16/2020 <10 Acceptable 74.6 4.7 12.3 9 138
05/26/2020 <10 Acceptable 65.1 5.3 24.6 13 146
03/04/2020 10 Acceptable 41.5 1.1 n/a n/a 97
02/12/2020 41 Acceptable 40.1 5.7 n/a n/a 93
01/15/2020 52 Acceptable 41.0 2.4 n/a n/a 95
12/05/2019 41 Acceptable 41.9 2.7 n/a n/a 91
11/20/2019 85 Beach Advisory 47.3 2.6 n/a n/a 90
10/25/2019 <10 Acceptable 62.4 3.4 n/a n/a 91
10/08/2019 10 Acceptable 68.2 6.6 11.6 4 100
09/18/2019 <10 Acceptable 72.3 8.1 n/a n/a 92
09/10/2019 20 Acceptable 76.2 6.2 15.6 5 102
08/28/2019 <10 Acceptable 77.7 6.6 n/a n/a 96
08/06/2019 <10 Acceptable 81.6 8.2 15.7 18 97
07/23/2019 609 Beach Advisory 79.9 4.7 n/a n/a 100
07/09/2019 10 Acceptable 80.6 5.9 14.0 16 105
06/26/2019 10 Acceptable 74.8 1.1 n/a n/a 99
06/04/2019 20 Acceptable 67.0 4.1 3.5 14 94
05/29/2019 10 Acceptable 66.7 0.5 n/a n/a 108
05/07/2019 41 Acceptable 60.5 1.3 3.5 27 99
04/29/2019 10 Acceptable 56.7 0.1 n/a n/a 97
03/14/2019 20 Acceptable 42.1 4.3 n/a n/a 97
02/26/2019 187 Beach Advisory 38.7 0.3 n/a n/a 94
01/28/2019 52 Acceptable 35.4 0.9 n/a n/a 93
12/03/2018 62 Beach Advisory 45.0 0.1 n/a n/a 93
11/08/2018 63 Beach Advisory 55.0 0.2 n/a n/a 89
10/24/2018 74 Beach Advisory 58.3 3.5 n/a n/a 87
10/10/2018 <10 Acceptable 71.0 0.3 5.8 20 94
09/20/2018 30 Acceptable 75.7 2.8 n/a n/a 88
09/10/2018 776 Beach Advisory 72.1 6.5 3.7 14 83
08/14/2018 10 Acceptable 82.4 3.0 12.5 14 105
08/09/2018 10 Acceptable 85.1 3.4 n/a n/a 129
07/23/2018 1529 Beach Advisory 77.5 8.0 n/a n/a 91
07/17/2018 199 Beach Advisory 81.3 9.8 50.5 17 133
06/21/2018 318 Beach Advisory 76.5 7.2 n/a n/a 103
06/13/2018 <10 Acceptable 70.1 7.4 69.7 14 143
05/23/2018 10 Acceptable 66.9 2.8 n/a n/a 98
05/06/2018 <10 Acceptable 57.7 0.1 4.6 25 104
04/24/2018 <10 Acceptable 53.8 0.4 n/a n/a 100
03/26/2018 10 Acceptable 42.4 3.2 n/a n/a 98
02/26/2018 175 Beach Advisory 38.7 0.3 n/a n/a 100
01/24/2018 563 Beach Advisory 36.9 1.9 n/a n/a 101
12/04/2017 107 Beach Advisory 48.0 6.6 n/a n/a 86
11/16/2017 243 Beach Advisory 51.6 3.1 n/a n/a 91
10/16/2017 <10 Acceptable 69.2 9.8 3.5 16 85
10/11/2017 146 Beach Advisory 71.6 9.8 n/a n/a 83
09/29/2017 86 Beach Advisory 72.1 6.6 n/a n/a 87
09/11/2017 10 Acceptable 70.4 8.3 6.3 18 102
08/14/2017 <10 Acceptable 79.4 6.2 8.0 19 104
08/07/2017 164 Beach Advisory 75.9 5.4 n/a n/a 100
07/10/2017 <10 Acceptable 77.7 3.1 3.5 12 100
07/06/2017 74 Beach Advisory 77.9 0.9 n/a n/a 107
06/12/2017 41 Acceptable 72.6 1.4 3.4 16 105
06/06/2017 435 Beach Advisory 65.1 0.8 n/a n/a 96
05/22/2017 10 Acceptable 63.3 1.0 n/a n/a 99
05/16/2017 31 Acceptable 59.0 0.3 4.0 31 100
04/13/2017 10 Acceptable 50.7 0.1 n/a n/a 102
04/04/2017 96 Beach Advisory n/a n/a n/a n/a n/a
03/30/2017 20 Acceptable 42.4 3.8 n/a n/a 97
02/02/2017 <10 Acceptable 37.8 4.3 n/a n/a 94
01/11/2017 74 Beach Advisory 37.0 4.2 n/a n/a 94
12/01/2016 209 Beach Advisory 50.9 7.3 n/a n/a 91
11/16/2016 203 Beach Advisory 53.4 8.6 n/a n/a 92
10/24/2016 98 Beach Advisory 62.1 10.2 n/a n/a 98
10/13/2016 20 Acceptable 65.3 10.2 2.3 36 92
09/28/2016 110 Beach Advisory 71.2 9.8 n/a n/a 85
09/14/2016 <10 Acceptable 80.1 9.2 6.7 n/a 119
08/30/2016 134 Beach Advisory 81.9 6.7 n/a n/a 113
08/15/2016 <10 Acceptable 87.7 5.4 22.1 30 162
07/13/2016 <10 Acceptable 80.5 6.9 16.6 9 121
07/05/2016 213 Beach Advisory 77.0 8.5 n/a n/a 93
06/15/2016 <10 Acceptable 72.2 3.3 5.5 21 115
06/07/2016 109 Beach Advisory 74.3 6.5 n/a n/a 105
05/20/2016 10 Acceptable 64.5 2.5 14.0 n/a 111
05/09/2016 20 Acceptable 59.0 4.5 n/a n/a 95
04/18/2016 10 Acceptable 59.0 0.8 n/a n/a 104
03/07/2016 63 Beach Advisory 42.6 3.0 n/a n/a 98
02/01/2016 41 Acceptable 41.2 2.8 n/a n/a 99
01/12/2016 52 Acceptable 41.7 5.8 n/a n/a 92
12/09/2015 10 Acceptable 48.4 4.4 n/a n/a 90
12/07/2015 7701 Beach Advisory 50.5 2.8 n/a n/a 91
11/16/2015 41 Acceptable 55.4 5.3 n/a n/a 87
10/27/2015 41 Acceptable 58.6 7.9 n/a n/a 90
10/12/2015 <10 Acceptable 66.8 7.9 5.6 19 96
09/22/2015 537 Beach Advisory 70.7 7.2 n/a n/a 90
09/11/2015 20 Acceptable 77.8 8.8 10.5 56 93
08/18/2015 <10 Acceptable 82.6 7.4 n/a n/a 102
08/12/2015 <10 Acceptable 80.2 8.0 22.7 14 132
07/08/2015 10 Acceptable 78.8 2.7 39.0 34 124
06/11/2015 <10 Acceptable 73.8 4.8 12.0 15 120
05/27/2015 341 Beach Advisory 72.0 3.8 n/a n/a 113
05/12/2015 31 Acceptable 67.6 5.1 4.5 62 100
05/05/2015 10 Acceptable 59.9 5.6 n/a n/a 99
04/06/2015 10 Acceptable 45.1 2.7 n/a n/a 98
03/11/2015 52 Acceptable 38.1 7.1 n/a n/a 94
01/05/2015 30 Acceptable 38.3 0.7 n/a n/a 92
12/01/2014 <10 Acceptable 47.8 5.6 n/a n/a 91
11/10/2014 <10 Acceptable 53.4 6.9 n/a n/a 88
10/27/2014 30 Acceptable 57.9 7.8 n/a n/a 89
10/13/2014 10 Acceptable 62.9 8.8 0.1 24 91
09/22/2014 148 Beach Advisory 70.9 7.2 n/a n/a n/a
09/08/2014 <10 Acceptable 76.8 6.2 16.8 32 121
08/26/2014 <10 Acceptable 77.7 5.3 n/a n/a 93
08/12/2014 <10 Acceptable 77.7 6.9 5.6 47 85
07/15/2014 336 Beach Advisory 79.5 3.8 n/a n/a 86
07/08/2014 63 Beach Advisory 78.4 2.3 4.9 19 92
06/24/2014 63 Beach Advisory 75.2 2.1 n/a n/a 86
06/13/2014 488 Beach Advisory 68.6 6.3 38.5 45 101
05/27/2014 116 Beach Advisory n/a n/a n/a n/a n/a
05/13/2014 <10 Acceptable 60.3 2.8 2.8 33 97
04/21/2014 31 Acceptable 53.8 0.1 n/a n/a 102
03/31/2014 355 Beach Advisory 39.9 0.6 n/a n/a 99
02/24/2014 63 Beach Advisory 38.8 5.3 n/a n/a 99
01/27/2014 86 Beach Advisory 33.6 2.3 n/a n/a 94
12/02/2013 85 Beach Advisory 45.3 5.3 n/a n/a 86
11/13/2013 20 Acceptable 49.8 5.7 n/a n/a 90
10/28/2013 <10 Acceptable 58.6 6.4 n/a n/a 89
10/17/2013 341 Beach Advisory 66.3 8.7 3.9 14 88
09/30/2013 52 Acceptable 69.8 4.8 n/a n/a 97
09/19/2013 30 Acceptable 69.4 6.3 6.6 24 94
08/28/2013 98 Beach Advisory 77.7 5.3 n/a n/a 109
08/15/2013 20 Acceptable 75.9 4.2 7.5 13 102
07/24/2013 169 Beach Advisory 82.2 5.9 n/a n/a n/a
07/18/2013 <10 Acceptable 83.1 3.5 5.3 22 86
06/27/2013 132 Beach Advisory 75.6 0.8 n/a n/a n/a
06/20/2013 <10 Acceptable 71.2 0.1 4.8 18 99
05/30/2013 10 Acceptable 65.6 2.0 0.7 32 92
04/22/2013 20 Acceptable 53.1 0.8 n/a n/a 95
03/18/2013 75 Beach Advisory 37.2 1.0 n/a n/a 94
02/25/2013 20 Acceptable 38.1 5.6 n/a n/a 93
01/14/2013 <10 Acceptable 41.7 3.0 n/a n/a 92
12/10/2012 301 Beach Advisory 47.3 5.6 n/a n/a 91
11/08/2012 364 Beach Advisory 49.5 3.7 n/a n/a 91
11/06/2012 41 Acceptable 52.9 1.7 n/a n/a 94
10/11/2012 31 Acceptable 64.1 4.8 4.1 20 86
09/11/2012 10 Acceptable 74.9 6.8 7.3 28 93
08/14/2012 10 Acceptable 81.7 8.3 3.3 21 90
07/17/2012 <10 Acceptable 82.6 9.1 18.6 86 121
06/12/2012 98 Beach Advisory 72.6 3.0 12.4 37 99
05/16/2012 <10 Acceptable 65.1 0.8 6.6 35 106
04/09/2012 10 Acceptable 53.6 7.7 n/a n/a 101
03/05/2012 63 Beach Advisory 44.8 3.5 n/a n/a 100
02/06/2012 216 Beach Advisory 40.3 2.4 n/a n/a 99
01/03/2012 613 Beach Advisory 40.5 0.1 n/a n/a 98
12/05/2011 <10 Acceptable 48.2 0.2 n/a n/a 94
11/07/2011 10 Acceptable 54.7 0.9 n/a n/a 92
10/20/2011 121 Beach Advisory 63.7 0.7 0.3 58 96
09/15/2011 41 Acceptable 70.5 0.1 1.8 112 82
08/17/2011 10 Acceptable 81.0 6.3 5.0 22 103
08/15/2011 228 Beach Advisory n/a n/a n/a n/a n/a
07/18/2011 <10 Acceptable 82.8 3.6 5.9 25 n/a
06/28/2011 10 Acceptable 80.0 1.7 10.2 9 105
06/02/2011 30 Acceptable 72.0 1.3 n/a n/a 112
05/17/2011 663 Beach Advisory 59.7 2.6 n/a n/a 93
05/02/2011 20 Acceptable 54.9 0.1 n/a n/a 99
04/04/2011 31 Acceptable 44.6 3.8 n/a n/a 95
03/07/2011 767 Beach Advisory 39.2 0.6 n/a n/a 98
02/07/2011 238 Beach Advisory 34.9 4.6 n/a n/a 95
01/03/2011 218 Beach Advisory 35.4 3.7 n/a n/a 92
12/06/2010 122 Beach Advisory 40.8 0.2 n/a n/a 91
11/08/2010 63 Beach Advisory 50.0 1.0 n/a n/a 91
10/13/2010 73 Beach Advisory 63.6 0.4 6.5 33 90
09/12/2010 30 Acceptable 70.6 7.7 7.3 22 82
08/18/2010 <10 Acceptable 80.4 7.4 18.5 153 108
08/10/2010 41 Acceptable 80.6 8.4 n/a n/a 111
07/22/2010 10 Acceptable 82.5 8.5 31.7 17 150
06/28/2010 73 Beach Advisory 80.4 6.1 n/a n/a 109
06/16/2010 30 Acceptable 72.6 7.7 6.5 47 85
05/22/2010 <10 Acceptable 66.2 5.4 6.7 15 99
05/10/2010 75 Beach Advisory 57.0 2.3 n/a n/a 96
04/06/2010 74 Beach Advisory 52.3 0.1 n/a n/a 95
03/08/2010 20 Acceptable 39.9 2.4 n/a n/a 98
01/26/2010 85 Beach Advisory 37.9 5.5 n/a n/a 97
12/28/2009 384 Beach Advisory 39.7 4.0 n/a n/a 94
11/23/2009 20 Acceptable 51.6 1.8 n/a n/a 92
10/20/2009 31 Acceptable 55.7 6.6 3.0 21 90
09/15/2009 <10 Acceptable 74.7 6.1 4.2 38 89
08/22/2009 383 Beach Advisory 81.2 4.7 20.3 22 110
08/21/2009 85 Beach Advisory 82.1 4.8 23.4 22 118
07/29/2009 <10 Acceptable 78.9 2.4 7.5 19 98
06/23/2009 <10 Acceptable 71.4 0.4 1.4 38 97
06/06/2009 <10 Acceptable n/a n/a n/a n/a n/a
05/13/2009 <10 Acceptable 63.7 1.9 4.4 30 104
09/07/2008 120 Beach Advisory n/a n/a n/a n/a n/a
08/21/2008 <10 Acceptable 79.0 5.8 6.6 10 114
07/20/2008 <10 Acceptable n/a n/a n/a n/a n/a
07/15/2008 27 Acceptable 79.2 5.6 5.1 n/a 98
06/16/2008 214 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:

Nyack, NY
This public launch ramp is adjacent to a waterfront park, village marina and private boat club. There is boating, kayaking, windsurfing and jet skiing, as well as fishing and some swimming.

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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