Marlboro Landing

Marlboro Landing

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

59 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.

QualityRain, day of (in)Prior Day2 Days Prior3 Days Prior Rain4 Days Total Rain
SortSortSortSortSortSortSortSort
10/17/201713Acceptable0.00.00.00.00.1
09/12/20174Acceptable0.00.00.00.00.0
08/15/20177Acceptable0.10.00.00.70.7
07/11/201717Acceptable0.20.00.00.00.2
06/13/20172Acceptable0.40.00.00.00.5
05/16/20174Acceptable0.00.00.11.31.4
10/16/201639Acceptable0.00.00.00.00.0
09/15/201616Acceptable0.00.00.00.00.0
08/16/201636Acceptable0.00.00.10.10.2
07/14/20164Acceptable0.00.00.00.00.0
06/16/201616Acceptable0.00.00.00.00.0
05/21/20165Acceptable0.00.00.00.00.0
10/13/20158Acceptable0.00.00.00.00.0
09/12/201517Acceptable0.60.10.90.01.6
08/13/20154Acceptable0.00.00.90.00.9
07/09/20156Acceptable0.00.00.10.00.1
06/12/20154Acceptable0.00.00.00.30.3
05/13/20153Acceptable0.00.00.00.00.0
10/14/20143Acceptable0.00.00.00.10.1
09/09/20146Acceptable0.00.00.00.10.1
08/13/201418Acceptable0.00.00.00.00.0
07/09/201420Acceptable0.00.10.20.00.3
06/14/201457Acceptable0.00.10.00.10.2
05/14/201422Acceptable0.00.00.00.00.0
10/19/20139Acceptable0.00.00.00.00.0
09/20/20132Acceptable0.00.00.00.00.0
08/17/20137Acceptable0.00.00.00.00.0
07/19/201316Acceptable0.00.10.00.00.1
06/22/201326Acceptable0.00.00.00.00.0
06/02/20135Acceptable0.00.00.00.00.0
10/14/201233Acceptable0.00.00.00.00.0
09/13/201213Acceptable0.00.00.00.00.0
08/16/20121Acceptable0.00.30.10.00.4
07/19/20127Acceptable0.00.20.00.00.2
06/14/20127Acceptable0.00.20.30.00.5
05/18/20122Acceptable0.00.00.00.30.3
10/18/201117Acceptable0.00.00.10.00.1
09/17/201126Acceptable0.00.00.10.00.1
08/19/201110Acceptable0.00.10.00.10.2
07/17/20112Acceptable0.00.00.00.00.0
06/30/201112Acceptable0.00.50.00.00.5
05/18/201132Acceptable0.90.80.10.32.1
10/15/2010>2420Beach Advisory0.40.80.00.31.5
09/13/20104Acceptable0.00.00.00.00.0
08/20/20107Acceptable0.00.00.00.00.0
07/20/201022Acceptable0.00.00.00.00.0
06/17/201015Acceptable0.00.00.00.00.0
05/24/20105Acceptable0.00.00.00.00.0
10/21/20095Acceptable0.00.00.00.20.2
09/16/20092Acceptable0.00.00.00.00.0
08/23/200911Acceptable0.30.30.00.00.6
07/30/200977Beach Advisory0.00.30.00.20.5
06/09/2009116Beach Advisory0.90.00.00.00.9
05/14/20092Acceptable0.10.00.00.00.1
10/22/20082Acceptable0.00.00.00.00.0
09/20/20082Acceptable0.00.00.00.00.0
08/06/200838Acceptable0.30.00.00.00.3
07/16/20081Acceptable0.00.00.60.00.6
06/17/200824Acceptable0.00.20.00.10.3

Entero Count (fecal indicator) and Rainfall Correlation

59 Samples taken

All Water Quality Parameters

59 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%).

SortSortSortSortSortSortSortSort
10/17/201713Acceptable68.60.32.69.885.7
09/12/20174Acceptable730.14.18.486.9
08/15/20177Acceptable77.70.15.211.192.5
07/11/201717Acceptable77.70.14.29.691.7
06/13/20172Acceptable67.50.15.112111.4
05/16/20174Acceptable57.00.12.516.9100.1
10/16/201639Acceptable671.13.44592
09/15/201616Acceptable78.10.53.6n/a87
08/16/201636Acceptable83.30.13.625101
07/14/20164Acceptable78.60.16.41191
06/16/201616Acceptable73.50.12.92197
05/21/20165Acceptable600.12.32499
10/13/20158Acceptable65.60.15.52189
09/12/201517Acceptable78.80.34.31985
08/13/20154Acceptable79.60.14.41393
07/09/20156Acceptable73.70.11.82077
06/12/20154Acceptable74.20.12.5689
05/13/20153Acceptable59.50.13.323103
10/14/20143Acceptable66.70.20.83187
09/09/20146Acceptable76.30.131686
08/13/201418Acceptable78.20.13.92589
07/09/201420Acceptable77.90.12.13382
06/14/201457Acceptable69.60.13.93587
05/14/201422Acceptable59.70.13.316104
10/19/20139Acceptable65.30.232490
09/20/20132Acceptable73.90.13.34191
08/17/20137Acceptable78.20.12.112782
07/19/201316Acceptable81.60.12.35075
06/22/201326Acceptable67.80.12.48597
06/02/20135Acceptable66.60.176699
10/14/201233Acceptable63.20.12.91685
09/13/201213Acceptable78.40.24.213295
08/16/20121Acceptable82.10.21.4694
07/19/20127Acceptable82.20.22.62190
06/14/20127Acceptable73.30.11.62187
05/18/20122Acceptable63.70.12.42795
10/18/201117Acceptable610.10.48389
09/17/201126Acceptable68.90.11.424387
08/19/201110Acceptablen/an/an/an/an/a
07/17/20112Acceptable78.60.14.513n/a
06/30/201112Acceptable73.90.12.1884
05/18/201132Acceptablen/an/an/an/an/a
10/15/2010>2420Beach Advisory59.20.132681
09/13/20104Acceptable75.10.14.41485
08/20/20107Acceptable80.10.24.71083
07/20/201022Acceptable81.50.22.71081
06/17/201015Acceptable73.10.12.72175
05/24/20105Acceptable62.90.13.52190
10/21/20095Acceptable58.50.121987
09/16/20092Acceptable72.70.13.81691
08/23/200911Acceptable78.20.12.82381
07/30/200977Beach Advisory76.80.12.41988
06/09/2009116Beach Advisoryn/an/an/an/an/a
05/14/20092Acceptable61.10.15.516109
10/22/20082Acceptable61.20.141492
09/20/20082Acceptablen/an/an/an/an/a
08/06/200838Acceptablen/an/an/an/an/a
07/16/20081Acceptable79.90.11.31693
06/17/200824Acceptablen/an/an/an/an/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:

Marlboro, NY
The landing at Marlboro has a marina, as well as kayaking, fishing, and swimming from boats. There is a tributary in close proximity.

Agencies Responsible:

Ulster County Dept. of Health: 845-340-3010 and NYSDEC Region 3: 845-256-3000

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