Water Quality > Tributary and Waterfront Data > New York City Waterfront > Upper West Side- Pier 1 (West 70th Street)

Upper West Side- Pier 1 (West 70th Street)

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

23 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
06/22/2017 52 Acceptable 0.0 0.0 0.0 1.4 1.4
06/15/2017 62 Beach Advisory 0.0 0.3 0.0 0.0 0.3
06/08/2017 20 Acceptable 0.0 0.0 0.1 0.0 0.1
06/01/2017 <10 Acceptable 0.0 0.0 0.1 0.1 0.2
05/18/2017 52 Acceptable 0.0 0.0 0.0 0.0 0.0
09/29/2016 135 Beach Advisory 0.0 0.0 0.2 0.0 0.2
09/22/2016 20 Acceptable 0.0 0.0 0.0 0.7 0.7
09/15/2016 228 Beach Advisory 0.0 0.6 0.0 0.0 0.6
09/08/2016 73 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/01/2016 108 Beach Advisory 0.5 0.0 0.0 0.0 0.5
08/25/2016 52 Acceptable 0.0 0.0 0.0 0.0 0.0
08/18/2016 63 Beach Advisory 0.0 0.0 0.1 0.0 0.2
08/04/2016 20 Acceptable 0.0 0.0 0.0 0.0 0.0
07/28/2016 75 Beach Advisory 0.0 0.0 0.0 1.0 1.0
07/21/2016 10 Acceptable 0.0 0.0 0.0 0.4 0.4
07/14/2016 <10 Acceptable 0.6 0.0 0.0 0.0 0.6
07/07/2016 10 Acceptable 0.0 0.0 0.7 0.5 1.2
06/30/2016 52 Acceptable 0.0 0.0 0.1 0.5 0.6
06/23/2016 10 Acceptable 0.0 0.0 0.0 0.0 0.0
06/16/2016 10 Acceptable 0.2 0.0 0.0 0.0 0.2
06/09/2016 135 Beach Advisory 0.0 0.5 0.0 0.9 1.4
05/26/2016 20 Acceptable 0.0 0.0 0.2 0.0 0.2
05/19/2016 31 Acceptable 0.0 0.0 0.0 0.0 0.0

Entero Count (fecal indicator) and Rainfall Correlation

23 Samples taken

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 citizen scientists and processed at laboratories that aren't directly affiliated with Riverkeeper, using methods and study designs that are consistent with Riverkeeper's Hudson River and Citizen Testing programs.

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:

Site Coordinator: Danny Molinaro. Site Sponsor: Randalls Island Park Alliance. These samples are processed by Columbia University/Lamont-Doherty Earth Observatory (Wade McGillis).

Agencies Responsible:

NYCDEP: 212-639-9675; NYSDEC Region 2: 718-482-4933

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