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Analysis of Aquifer Framework and Properties, Alvahs Lane Well Field, Cutchogue, New York

Scientific Investigations Report 2024-5128
Prepared in cooperation with the Suffolk County Water Authority
By:
https://doi.org/10.3133/sir20245128

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Abstract

The U.S. Geological Survey, in cooperation with the Suffolk County Water Authority, evaluated the aquifer transmissivity and storage properties at the Alvahs Lane well field north of the village of Cutchogue, New York. This analysis of aquifer properties provides the Suffolk County Water Authority with hydrogeologic information needed to develop water supplies to meet the increasing water demands of the residents of Suffolk County, New York.

An aquifer test was conducted at the Alvahs Lane well field from October 18 through October 21, 2022, when a production well was pumped at 550 gallons per minute for about 24 hours, and groundwater-level drawdown and recovery were measured in two monitoring wells. The three wells are screened in a glaciofluvial aquifer under unconfined (water table) conditions. Drawdown and recovery data were analyzed with an analytical solution for partial penetration and delayed yield in an unconfined aquifer to provide estimates of the glaciofluvial aquifer properties. Inclusion of lateral aquifer boundaries was not necessary for the analysis to result in satisfactory matches with the observed water-level responses. Aquifer transmissivity was estimated at 32,000 feet squared per day. Assuming a saturated aquifer thickness of 120 feet, this result is equivalent to a horizontal hydraulic conductivity value of 270 feet per day. Specific yield was estimated at 0.15 (dimensionless). The estimated properties are consistent with those of a highly transmissive unconfined aquifer.

Suggested Citation

Misut, P.E., 2025, Analysis of aquifer framework and properties, Alvahs Lane well field, Cutchogue, New York: U.S. Geological Survey Scientific Investigations Report 2024–5128, 9 p., https://doi.org/10.3133/sir20245128.

ISSN: 2328-0328 (online)

Study Area

Table of Contents

  • Abstract
  • Introduction
  • Alvahs Lane Well Field Aquifer Test
  • Aquifer Properties
  • Summary
  • References Cited
Publication type Report
Publication Subtype USGS Numbered Series
Title Analysis of aquifer framework and properties, Alvahs Lane well field, Cutchogue, New York
Series title Scientific Investigations Report
Series number 2024-5128
DOI 10.3133/sir20245128
Publication Date March 13, 2025
Year Published 2025
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) New York Water Science Center
Description iv, 9 p.
Country United States
State New York
City Cutchogue
Other Geospatial Alvahs Lane well field
Online Only (Y/N) Y
Additional Online Files (Y/N) N
Additional publication details