Hudson Landing Ramp

Hudson Launch Ramp

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

41 Samples taken

Sample Date [i] Enterococcus Count

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
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 2.4
06/15/2014 727 Beach Advisory 0.0 0.1 0.9 0.1 1.1
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 1.2
10/15/2012 20 Acceptable 0.0 0.5 0.0 0.5 1.0
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 1.5
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 1.6
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 0.2
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 1.2
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 0.3
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 1.0
05/22/2008 8 Acceptable 0.2 0.0 0.0 0.0 0.2

Entero Count (fecal indicator) and Rainfall Correlation

41 Samples taken

All Water Quality Parameters

41 Samples taken

Sample Date [i] Entero Count

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)

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

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

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

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

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
08/14/2014 46 Acceptable 76.2 0.1 0.8 29.1 88.8
07/10/2014 13 Acceptable 77.4 0.1 3.4 21.7 95.5
06/15/2014 727 Beach Advisory 68.9 0.1 0.1 75.0 98.6
05/15/2014 23 Acceptable 61.8 0.1 2.7 18.0 97.5
10/21/2013 11 Acceptable 59.9 0.1 9.3 14 103
09/21/2013 13 Acceptable 68.8 0.1 5.8 44 94
08/19/2013 14 Acceptable 74.7 0.1 3 101 88
07/21/2013 23 Acceptable 82.7 0.1 1 21 87
06/24/2013 91 Beach Advisory 71.5 0.1 1.3 41 97
06/04/2013 75 Beach Advisory 69 0.1 1.2 22 93
10/15/2012 20 Acceptable 58 0.1 4 16 95
09/15/2012 4 Acceptable 73.9 0.1 3 17 95
08/18/2012 16 Acceptable 79.4 0.2 2.2 8 96
07/21/2012 8 Acceptable 81.2 0.2 2.9 12 93
06/16/2012 7 Acceptable 73.2 0.1 1.5 12 96
05/19/2012 26 Acceptable 65 0.1 0.6 19 99
10/16/2011 1986 Beach Advisory 61.1 0.1 0.4 65 94
09/19/2011 38 Acceptable 66.3 0.1 0.8 59 93
08/20/2011 7 Acceptable 78.6 0.1 11.1 55 120
07/14/2011 6 Acceptable 78.9 0.1 n/a 148 n/a
07/02/2011 74 Beach Advisory 72.2 0.1 0.6 20 n/a
05/19/2011 238 Beach Advisory n/a n/a n/a n/a n/a
10/16/2010 125 Beach Advisory 55.6 0.1 1.9 14 94
09/14/2010 19 Acceptable 71.6 0.1 13.5 n/a 94
08/21/2010 12 Acceptable 78 0.1 3 n/a 91
07/19/2010 11 Acceptable 83.1 0.1 5.7 10 95
06/18/2010 65 Beach Advisory 71 0.1 1.8 45 117
05/25/2010 4 Acceptable 68.1 0.1 8.7 894 124
10/23/2009 4 Acceptable 51 0.1 1 21 91
09/17/2009 16 Acceptable 69.2 0.1 17.4 24 109
08/24/2009 727 Beach Advisory 78.8 0.1 9.4 94 99
07/31/2009 >2420 Beach Advisory 74.6 0.1 4.7 62 90
06/12/2009 249 Beach Advisory n/a n/a n/a n/a n/a
05/16/2009 26 Acceptable 63.4 0.1 1.7 25 104
05/15/2009 7 Acceptable 62.3 n/a 2.5 16 100
10/23/2008 10 Acceptable 54.1 0.1 10.8 10 99
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 80 0.1 2.8 17 114
06/18/2008 21 Acceptable n/a n/a n/a n/a n/a
05/22/2008 8 Acceptable 58.6 0.1 11.6 28 100

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