Additional Details

Description

Abstract

First posted October 11, 2017

For additional information, contact:

Director, New York Water Science Center U.S. Geological Survey 2045 Route 112, Building 4 Coram, NY 11727 (518) 285–5602 or visit our website at https://ny.water.usgs.gov

The U.S. Geological Survey, in cooperation with the New York City Department of Environmental Protection, sampled 37 sites in the reservoir area for nutrients, major ions, metals, pesticides and their degradates, volatile organic compounds, temperature, pH, and specific conductance during fall 2015. Data collection was done to characterize the local groundwater-flow system and identify potential sources of seeps from the southern embankment at the Hillview Reservoir. Water-quality samples were collected in accordance with standard U.S. Geological Survey methods at 37 sites in and adjacent to Hillview Reservoir. These 37 sites were sampled to determine (1) baseline water-quality conditions of the saturated, low-permeability sediments that compose the earthen embankment that surrounds the reservoir, (2) water-quality conditions in the southwestern part of the study area in r elation to the seeps on the embankment, and (3) temporal variation of water-quality conditions between 2006 and 2015 (not included in this report). The physical parameters and the results of the water-quality analysis from the 37 sites are included in this report and can be downloaded from the U.S. Geological Survey National Water Information System website.

Survey Date

2015

Print Date

2017

Height In Inches

11.000

Length In Inches

8.500

Two Sided

Yes

Pieces

1

Languages

English