Water Quality
Water Quality > Hudson River Estuary Data > Greene County & Columbia County Sites > Hudson Landing Ramp

Hudson Landing Ramp

Hudson 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

97 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
10/18/2023 27 Acceptable 0.0 0.0 0.0 0.0 0.1
09/20/2023 119 Beach Advisory 0.0 0.0 1.3 0.1 1.3
08/23/2023 55 Acceptable 0.0 0.0 0.0 0.0 0.0
07/19/2023 >2420 Beach Advisory 0.0 0.9 0.0 0.7 1.6
06/28/2023 69 Beach Advisory 0.0 0.2 1.2 0.4 1.8
05/03/2023 548 Beach Advisory 0.2 0.0 0.7 0.5 1.4
10/13/2022 44 Acceptable 0.0 0.0 0.0 0.0 0.0
09/13/2022 1414 Beach Advisory 0.1 0.0 0.0 0.0 0.1
08/22/2022 30 Acceptable 0.0 0.0 0.0 0.1 0.1
07/18/2022 32 Acceptable 0.0 0.0 0.0 0.0 0.0
06/15/2022 10 Acceptable 0.0 0.0 0.0 0.0 0.0
05/25/2022 7 Acceptable 0.0 0.0 0.8 0.0 0.8
10/27/2021 >2420 Beach Advisory 0.0 1.0 0.9 0.0 1.9
09/15/2021 33 Acceptable 0.0 0.0 0.8 0.0 0.8
08/18/2021 35 Acceptable 0.0 0.0 0.0 0.0 0.0
07/21/2021 163 Beach Advisory 0.5 0.3 0.1 0.9 1.9
06/09/2021 7 Acceptable 0.0 0.6 0.0 0.0 0.6
05/20/2021 2 Acceptable 0.0 0.0 0.0 0.0 0.0
10/17/2020 31 Acceptable 0.0 0.6 0.0 0.0 0.6
09/21/2020 2 Acceptable 0.0 0.0 0.0 0.0 0.0
08/17/2020 46 Acceptable 0.0 0.0 0.0 0.0 0.0
07/17/2020 6 Acceptable 0.4 0.1 0.0 0.1 0.5
06/19/2020 57 Acceptable 0.0 0.0 0.0 0.0 0.0
05/29/2020 4 Acceptable 0.0 0.0 0.0 0.0 0.0
10/11/2019 24 Acceptable 0.0 0.0 0.0 0.1 0.1
09/13/2019 146 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/09/2019 23 Acceptable 0.0 0.8 0.1 0.4 1.3
07/12/2019 39 Acceptable 0.0 0.0 0.0 0.0 0.0
06/08/2019 2 Acceptable 0.0 0.0 0.6 0.5 1.1
05/11/2019 26 Acceptable 0.0 0.2 0.0 0.0 0.2
10/13/2018 575 Beach Advisory 0.3 0.0 1.3 0.0 1.6
09/13/2018 98 Beach Advisory 0.0 0.1 0.1 0.9 1.1
08/17/2018 12 Acceptable 0.0 0.0 0.0 0.0 0.0
07/20/2018 28 Acceptable 0.0 0.0 0.0 0.4 0.4
06/16/2018 15 Acceptable 0.0 0.1 0.0 0.3 0.3
05/09/2018 9 Acceptable 0.0 0.0 0.0 0.3 0.3
10/19/2017 6 Acceptable 0.0 0.0 0.0 0.0 0.0
09/14/2017 16 Acceptable 0.0 0.0 0.0 0.0 0.0
08/17/2017 11 Acceptable 0.0 0.0 0.0 0.0 0.0
07/13/2017 78 Beach Advisory 0.2 0.1 0.1 0.0 0.3
06/15/2017 6 Acceptable 0.0 0.0 0.0 0.0 0.0
05/18/2017 4 Acceptable 0.0 0.0 0.0 0.3 0.3
10/17/2016 12 Acceptable 0.0 0.0 0.0 0.0 0.0
09/17/2016 59 Acceptable 0.0 0.0 0.0 0.0 0.0
08/18/2016 31 Acceptable 0.0 0.0 0.2 0.0 0.2
07/16/2016 22 Acceptable 0.0 0.1 0.1 0.0 0.2
06/18/2016 39 Acceptable 0.0 0.0 0.0 0.0 0.0
05/23/2016 6 Acceptable 0.0 0.0 0.0 0.0 0.0
10/15/2015 7 Acceptable 0.0 0.0 0.0 0.0 0.0
09/14/2015 29 Acceptable 0.0 0.9 1.2 0.1 2.3
08/15/2015 26 Acceptable 0.3 0.3 0.0 0.0 0.6
07/11/2015 40 Acceptable 0.0 0.0 1.2 0.0 1.2
06/13/2015 16 Acceptable 0.0 1.3 0.0 0.0 1.3
05/14/2015 3 Acceptable 0.0 0.0 0.1 0.0 0.1
10/16/2014 26 Acceptable 0.3 0.1 0.0 0.0 0.4
09/10/2014 16 Acceptable 0.0 0.0 0.0 0.0 0.0
08/14/2014 46 Acceptable 0.0 0.1 0.0 0.0 0.1
07/10/2014 13 Acceptable 0.0 1.7 0.4 0.3 2.3
06/15/2014 727 Beach Advisory 0.0 0.5 0.5 0.1 1.0
05/15/2014 23 Acceptable 0.0 0.1 0.0 0.0 0.1
10/21/2013 11 Acceptable 0.0 0.0 0.0 0.2 0.2
09/21/2013 13 Acceptable 0.0 0.0 0.0 0.0 0.0
08/19/2013 14 Acceptable 0.0 0.0 0.0 0.0 0.0
07/21/2013 23 Acceptable 0.0 0.0 0.0 0.0 0.0
06/24/2013 91 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/04/2013 75 Beach Advisory 0.0 0.0 1.1 0.1 1.1
10/15/2012 20 Acceptable 0.0 0.5 0.0 0.1 0.6
09/15/2012 4 Acceptable 0.1 0.0 0.0 0.0 0.1
08/18/2012 16 Acceptable 0.0 0.1 0.0 0.2 0.3
07/21/2012 8 Acceptable 0.0 0.0 0.0 0.2 0.2
06/16/2012 7 Acceptable 0.0 0.0 0.0 0.2 0.2
05/19/2012 26 Acceptable 0.0 0.0 0.0 0.1 0.1
10/16/2011 1986 Beach Advisory 0.0 0.1 1.1 0.3 1.6
09/19/2011 38 Acceptable 0.0 0.0 0.0 0.1 0.1
08/20/2011 7 Acceptable 0.0 0.0 0.0 0.0 0.0
07/14/2011 6 Acceptable 0.0 0.3 0.0 0.0 0.3
07/02/2011 74 Beach Advisory 0.0 0.0 1.0 1.1 2.1
05/19/2011 238 Beach Advisory 0.8 0.2 0.1 0.5 1.7
10/16/2010 125 Beach Advisory 0.0 1.0 0.3 0.0 1.3
09/14/2010 19 Acceptable 0.0 0.0 0.0 0.0 0.0
08/21/2010 12 Acceptable 0.0 0.1 0.1 0.0 0.2
07/19/2010 11 Acceptable 0.0 0.2 0.5 0.0 0.7
06/18/2010 65 Beach Advisory 0.0 0.0 0.2 0.0 0.3
05/25/2010 4 Acceptable 0.0 0.0 0.0 0.0 0.0
10/23/2009 4 Acceptable 0.0 0.0 0.0 0.0 0.0
09/17/2009 16 Acceptable 0.0 0.0 0.0 0.0 0.0
08/24/2009 727 Beach Advisory 0.0 0.3 1.0 1.5 2.8
07/31/2009 >2420 Beach Advisory 0.6 0.3 1.0 0.0 1.9
06/12/2009 249 Beach Advisory 0.3 0.4 0.0 0.5 1.1
05/16/2009 26 Acceptable 0.0 0.0 0.5 0.0 0.5
05/15/2009 7 Acceptable 0.0 0.5 0.0 0.0 0.5
10/23/2008 10 Acceptable 0.0 0.2 0.1 0.0 0.2
09/17/2008 9 Acceptable 0.0 0.0 0.0 0.3 0.3
08/09/2008 65 Beach Advisory 0.0 0.0 1.3 0.2 1.5
07/17/2008 12 Acceptable 0.0 0.0 0.0 0.1 0.1
06/18/2008 21 Acceptable 0.0 0.1 0.9 0.0 1.1
05/22/2008 8 Acceptable 0.2 0.0 0.0 0.0 0.2

Entero Count (fecal indicator) and Rainfall Correlation

97 Samples taken

All Water Quality Parameters

97 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
10/18/2023 27 Acceptable 14.43 0.09 1.59 7.9 109.5
09/20/2023 119 Beach Advisory 21.24 0.13 2 n/a n/a
08/23/2023 55 Acceptable 22.93 0.12 2.58 1.7 97.3
07/19/2023 >2420 Beach Advisory 24.87 0.09 3 38.7 89.2
06/28/2023 69 Beach Advisory 74.9 0.1 8.6 26.1 93.2
05/03/2023 548 Beach Advisory 52.4 0.1 3.2 44.0 100.7
10/13/2022 44 Acceptable 59.7 0.1 4.1 4.2 90.5
09/13/2022 1414 Beach Advisory 75.3 0.1 3.4 6.5 70.6
08/22/2022 30 Acceptable 79.4 0.1 6.2 3.4 88.5
07/18/2022 32 Acceptable 79.1 0.1 5.1 5.2 95.3
06/15/2022 10 Acceptable 74.2 0.2 10.5 16.8 110.9
05/25/2022 7 Acceptable 69 0.1 6 9.5 100.8
10/27/2021 >2420 Beach Advisory 54.698 0.11 3.1 34.1 96.4
09/15/2021 33 Acceptable 71.366 0.09 2.86 8.6 n/a
08/18/2021 35 Acceptable 78.44 0.1 10.61 10 94.3
07/21/2021 163 Beach Advisory 73.31 0.1 5.04 35.6 96.5
06/09/2021 7 Acceptable 72.374 0.15 5.91 4.6 123
05/20/2021 2 Acceptable 64.04 0.13 12.72 11.4 118.5
10/17/2020 31 Acceptable 59.99 0.14 3.16 7.7 95.7
09/21/2020 2 Acceptable 66.416 0.14 3.95 6.3 88.9
08/17/2020 46 Acceptable 79.412 0.15 2.92 6.2 93.9
07/17/2020 6 Acceptable 79.844 0.15 2.98 5.5 97.9
06/19/2020 57 Acceptable 76.046 0.14 4.71 7.1 101.2
05/29/2020 4 Acceptable 69.566 0.11 13.8 7.2 124.3
10/11/2019 24 Acceptable 60.548 0.14 17.96 5.2 97.4
09/13/2019 146 Beach Advisory 70.376 0.14 4.28 4.1 104.4
08/09/2019 23 Acceptable 79.7 0.14 4.99 2.2 102.9
07/12/2019 39 Acceptable 79.826 0.09 8 7.4 88.5
06/08/2019 2 Acceptable 66.92 0.09 4.91 8.2 98.7
05/11/2019 26 Acceptable 55.418 0.08 2.51 9.6 98.5
10/13/2018 575 Beach Advisory 61.43 0.12 3.89 11 91.3
09/13/2018 98 Beach Advisory 72.7 0.14 3.84 6.3 83.6
08/17/2018 12 Acceptable 78.89 0.14 12.8 11.8 95.4
07/20/2018 28 Acceptable 80.492 0.15 3.34 7.9 87.2
06/16/2018 15 Acceptable 70.502 0.13 2.49 6.6 90.7
05/09/2018 9 Acceptable 58.352 0.08 2.5 6.8 101.9
10/19/2017 6 Acceptable 62.636 0.13 6.37 7.6 96.9
09/14/2017 16 Acceptable 69.134 0.13 11.83 7.2 111.2
08/17/2017 11 Acceptable 76.136 0.12 9.96 7.9 98.4
07/13/2017 78 Beach Advisory 75.398 0.08 1.53 18.8 86
06/15/2017 6 Acceptable 69.926 0.09 3.79 5.1 97.5
05/18/2017 4 Acceptable 60.422 0.08 1.61 10 106.2
10/17/2016 12 Acceptable 61.556 0.12 6.99 51.3 98.3
09/17/2016 59 Acceptable 73.706 0.11 0.44 n/a 85.4
08/18/2016 31 Acceptable 80.492 0.12 5.9 24.9 84.8
07/16/2016 22 Acceptable 79.88 0.12 5.23 4.5 92.6
06/18/2016 39 Acceptable 72.014 0.12 5.18 14.6 96.6
05/23/2016 6 Acceptable 62.024 0.11 25.62 24.9 113.9
10/15/2015 7 Acceptable 59.72 0.14 13.74 19.4 96.6
09/14/2015 29 Acceptable 76.118 0.14 1.57 12.1 82
08/15/2015 26 Acceptable 77.972 0.12 5.19 6.8 88.4
07/11/2015 40 Acceptable 73.31 0.09 7.49 14.2 92.7
06/13/2015 16 Acceptable 71.654 0.12 21.21 8.7 104
05/14/2015 3 Acceptable 69.404 0.11 5.5 34.8 n/a
10/16/2014 26 Acceptable 64.058 0.14 3.66 7 98.9
09/10/2014 16 Acceptable 75.56 0.12 1.38 14.9 111.2
08/14/2014 46 Acceptable 76.172 0.13 0.77 29.1 88.8
07/10/2014 13 Acceptable 77.432 0.11 3.38 21.7 95.5
06/15/2014 727 Beach Advisory 68.936 0.13 0.08 75 98.6
05/15/2014 23 Acceptable 61.772 0.09 2.65 18 97.5
10/21/2013 11 Acceptable 59.918 0.13 9.31 13.5 102.6
09/21/2013 13 Acceptable 68.774 0.12 5.78 44.1 94
08/19/2013 14 Acceptable 74.732 0.12 3.02 100.5 87.9
07/21/2013 23 Acceptable 82.724 0.1 1.04 20.8 87.2
06/24/2013 91 Beach Advisory 71.492 0.11 1.29 41.4 96.8
06/04/2013 75 Beach Advisory 69.008 0.09 1.16 21.8 92.5
10/15/2012 20 Acceptable 58.046 0.12 4.04 15.5 94.8
09/15/2012 4 Acceptable 73.85 0.13 3 16.9 95.1
08/18/2012 16 Acceptable 79.412 0.17 2.15 8.4 96.2
07/21/2012 8 Acceptable 81.176 0.18 2.92 12 93.1
06/16/2012 7 Acceptable 73.166 0.12 1.54 12.2 96.1
05/19/2012 26 Acceptable 65.012 0.1 0.64 19.3 99.2
10/16/2011 1986 Beach Advisory 61.088 0.12 0.44 64.9 94.2
09/19/2011 38 Acceptable 66.308 0.11 0.8 58.8 93.1
08/20/2011 7 Acceptable 78.566 0.13 11.05 55 120.1
07/14/2011 6 Acceptable 78.908 0.09 n/a 147.8 n/a
07/02/2011 74 Beach Advisory 72.23 0.08 0.6 19.5 n/a
05/19/2011 238 Beach Advisory n/a n/a n/a n/a n/a
10/16/2010 125 Beach Advisory 55.616 0.09 1.86 13.9 94.1
09/14/2010 19 Acceptable 71.6 0.09 13.49 n/a 93.9
08/21/2010 12 Acceptable 78.008 0.13 2.99 n/a 91.3
07/19/2010 11 Acceptable 83.102 0.11 5.73 10.2 95.1
06/18/2010 65 Beach Advisory 70.97 0.13 1.78 44.6 117.3
05/25/2010 4 Acceptable 68.144 0.13 8.68 894 123.5
10/23/2009 4 Acceptable 51.008 0.11 1.02 20.6 91.2
09/17/2009 16 Acceptable 69.206 0.11 17.42 24 108.9
08/24/2009 727 Beach Advisory 78.782 0.11 9.39 93.7 99.1
07/31/2009 >2420 Beach Advisory 74.57 0.12 4.74 62 89.7
06/12/2009 249 Beach Advisory n/a n/a n/a n/a n/a
05/16/2009 26 Acceptable 63.4 0.08 1.71 25.2 103.5
05/15/2009 7 Acceptable 62.258 n/a 2.49 16.1 100.2
10/23/2008 10 Acceptable 54.068 0.13 10.83 10.2 98.5
09/17/2008 9 Acceptable n/a n/a n/a n/a n/a
08/09/2008 65 Beach Advisory n/a n/a n/a n/a n/a
07/17/2008 12 Acceptable 79.988 0.12 2.83 16.9 113.5
06/18/2008 21 Acceptable n/a n/a n/a n/a n/a
05/22/2008 8 Acceptable 58.622 0.1 11.55 27.6 99.6

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:

Hudson, NY
The launch ramp and boat club at Hudson host kayaking, fishing and recreational boating There is swimming in the area.

Agencies Responsible:

Columbia County Dept. of Health: 518-828-3358, Greene County Dept. of Health: 518-719-3600 and NYSDEC Region 4: 518-357-2045

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