Tivoli Landing

Tivoli 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

61 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
10/18/20173Acceptable0.00.00.00.30.3
09/13/20172Acceptable0.00.00.00.00.0
08/16/20174Acceptable0.00.00.00.00.0
07/12/201723Acceptable0.00.10.00.00.1
06/14/20173Acceptable0.00.00.00.00.0
05/17/20174Acceptable0.00.00.30.40.7
10/17/20161Acceptable0.00.00.00.00.0
09/16/20161Acceptable0.00.00.00.00.0
08/17/20162Acceptable0.00.20.00.00.2
07/15/2016<1Acceptable0.00.10.00.00.1
06/17/20161Acceptable0.00.00.00.00.0
05/22/2016<1Acceptable0.00.00.00.00.0
10/14/20154Acceptable0.00.00.00.00.0
09/13/20159Acceptable0.91.20.10.42.6
08/14/2015<1Acceptable0.00.00.01.31.3
07/10/20153Acceptable0.01.20.00.51.7
06/13/20153Acceptable0.01.30.00.01.3
05/14/20151Acceptable0.00.00.10.00.1
10/15/2014<1Acceptable0.00.00.00.00.0
09/10/20146Acceptable0.00.00.00.00.0
08/14/201416Acceptable0.00.00.00.00.0
07/10/201425Acceptable0.00.00.10.20.3
06/15/201449Acceptable0.00.00.10.00.1
05/15/20145Acceptable0.00.00.00.00.0
10/20/20131Acceptable0.00.10.00.00.1
09/21/20132Acceptable0.00.00.00.00.0
08/18/20135Acceptable0.00.00.00.00.0
07/21/201310Acceptable0.00.00.00.10.1
06/23/201316Acceptable0.00.00.00.00.0
06/03/201325Acceptable1.30.00.00.01.3
10/14/20122Acceptable0.00.00.00.00.0
09/14/20123Acceptable0.00.00.00.00.0
08/17/201211Acceptable0.00.00.30.10.4
07/20/20129Acceptable0.40.00.20.00.6
06/15/20121Acceptable0.00.00.20.30.5
05/19/20124Acceptable0.00.00.00.00.0
10/17/2011344Beach Advisory0.00.10.00.00.1
09/18/201132Acceptable0.00.00.00.10.1
08/20/2011<1Acceptable0.01.00.10.01.1
07/15/2011<1Acceptable0.00.00.00.00.0
07/01/20114Acceptable0.00.00.50.00.5
05/19/2011161Beach Advisory0.00.90.80.11.8
10/15/201017Acceptable0.40.80.00.31.5
09/14/201031Acceptable0.00.00.00.00.0
08/23/201024Acceptable0.12.90.00.03.0
08/20/20106Acceptable0.00.00.00.00.0
07/19/20101Acceptable0.00.00.00.00.0
06/18/20105Acceptable0.00.00.00.00.0
05/24/20103Acceptable0.00.00.00.00.0
10/22/20097Acceptable0.00.00.00.00.0
09/17/200918Acceptable0.00.00.00.00.0
08/23/2009248Beach Advisory0.00.30.30.00.6
07/31/2009>2420Beach Advisory0.00.00.30.00.3
06/11/20091Acceptable0.20.00.90.01.1
05/14/20093Acceptable0.10.00.00.00.1
10/22/20082Acceptable0.00.00.00.00.0
09/16/20084Acceptable0.00.00.20.10.3
08/08/2008<1Acceptable0.40.10.30.00.8
07/16/20081Acceptable0.00.00.60.00.6
06/18/20083Acceptable0.00.00.20.00.2
05/21/20083Acceptable0.10.00.00.10.2

Entero Count (fecal indicator) and Rainfall Correlation

61 Samples taken

All Water Quality Parameters

61 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
10/18/20173Acceptable64.60.13.014.891.9
09/13/20172Acceptable69.90.13.49.388.7
08/16/20174Acceptable76.90.15.611.3106.2
07/12/201723Acceptable75.80.11.663.080.7
06/14/20173Acceptable68.80.14.735100.3
05/17/20174Acceptable58.50.11.918.0101.6
10/17/20161Acceptable61.10.14.23698
09/16/20161Acceptable75.30.13.2n/a92
08/17/20162Acceptable81.60.12.42686
07/15/2016<1Acceptable80.20.14.9998
06/17/20161Acceptable72.90.14.422101
05/22/2016<1Acceptable61.80.15.425124
10/14/20154Acceptable61.10.17.13893
09/13/20159Acceptable77.20.132282
08/14/2015<1Acceptable780.15.5794
07/10/20153Acceptable73.30.14.213102
06/13/20153Acceptable71.40.12.71102
05/14/20151Acceptable65.40.17.918n/a
10/15/2014<1Acceptable63.60.11.83994
09/10/20146Acceptable74.70.11.41787
08/14/201416Acceptable76.10.12.12783
07/10/201425Acceptable76.60.17.13597
06/15/201449Acceptable69.70.14.17389
05/15/20145Acceptable60.50.12.533101
10/20/20131Acceptable62.30.24.816100
09/21/20132Acceptable68.10.13.43387
08/18/20135Acceptable75.60.155295
07/21/201310Acceptable82.60.12.12383
06/23/201316Acceptable70.30.11.25498
06/03/201325Acceptable680.13.94394
10/14/20122Acceptable59.10.13.23694
09/14/20123Acceptable74.80.12.46691
08/17/201211Acceptable800.211286
07/20/20129Acceptable80.40.22.21989
06/15/20121Acceptable73.20.12.221103
05/19/20124Acceptable64.70.123996
10/17/2011344Beach Advisory60.60.10.68395
09/18/201132Acceptable660.10.96388
08/20/2011<1Acceptable77.80.12.28284
07/15/2011<1Acceptable790.17.29n/a
07/01/20114Acceptable72.80.12.98n/a
05/19/2011161Beach Advisoryn/an/an/an/an/a
10/15/201017Acceptable56.90.12.72590
09/14/201031Acceptable70.80.16.52683
08/23/201024Acceptablen/an/an/an/an/a
08/20/20106Acceptable78.60.14.422690
07/19/20101Acceptable82.30.14.3584
06/18/20105Acceptable72.50.110.36100
05/24/20103Acceptable670.12.267117
10/22/20097Acceptable53.10.14.476100
09/17/200918Acceptable690.13.81691
08/23/2009248Beach Advisory79.60.13.11688
07/31/2009>2420Beach Advisory74.80.18.310397
06/11/20091Acceptablen/an/an/an/an/a
05/14/20093Acceptable61.40.16.89106
10/22/20082Acceptable55.50.19.610103
09/16/20084Acceptablen/an/an/an/an/a
08/08/2008<1Acceptablen/an/an/an/an/a
07/16/20081Acceptable80.30.11.420102
06/18/20083Acceptablen/an/an/an/an/a
05/21/20083Acceptable58.70.13.3899

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:

Tivoli, NY
There is an unofficial kayak launch from the rocky shore, as well as boating and fishing.

Agencies Responsible:

Dutchess County Dept. of Health: 845-486-3400, Ulster County Dept. of Health: 845-340-3010 and NYSDEC Region 3: 845-256-3000

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