U.S. GEOLOGICAL SURVEY
Water-Resources
Investigations Report 98-4181
Ground-Water Flow Paths and Traveltime to
Three Small Embayments within the
Peconic Estuary, Eastern Suffolk County,
New York
By Christopher E. Schubert
CONTENTS
Introduction.
Purpose and scope.
Acknowledgments.
Hydrogeology.
Geologic framework.
Meetinghouse Creek study area
Sag Harbor Cove study area.
West Neck Bay study area.
Hydraulic properties of water-bearing units.
Hydrologic system.
Hydrologic boundaries.
Precipitation and recharge
Ground-water discharge
Freshwater/saltwater interface
Meetinghouse Creek study area
Sag Harbor Cove study area
West Neck Bay study area
Directions of ground-water flow.
Meetinghouse Creek study area
Sag Harbor Cove study area
West Neck Bay study area
Ground-water flow paths and traveltime to three small embayments within the Peconic Estuary
Development of flow models
Model grids
Meetinghouse Creek study area
Sag Harbor Cove study area
West Neck Bay study area
Boundary conditions.
Meetinghouse Creek study area
Sag Harbor Cove study area
West Neck Bay study area
Model calibration
Meetinghouse Creek study area
Sag Harbor Cove study area
West Neck Bay study area
Particle-tracking analysis
Tracking of particle pathlines
Meetinghouse Creek study area
Sag Harbor Cove study area
West Neck Bay study area
Tracking of particle traveltime.
Meetinghouse Creek study area
Sag Harbor Cove study area
West Neck Bay study area
Summary and conclusions
References cited.
FIGURES
1. Map of Long Island, N.Y., showing location of the Peconic Estuary, study area, and tidal benchmark at Port
Jefferson in Suffolk County.
2. Map of study area showing locations of the North and South Forks and Shelter Island, local study areas
(Meetinghouse Creek, Sag Harbor Cove, and West Neck Bay), and selected precipitation-measurement stations
and tidal benchmarks in eastern Suffolk County, N.Y
3. Maps of local study areas showing locations of vertical sections and associated boreholes and wells, eastern
Suffolk County, N.Y.:
A. Meetinghouse Creek study area
B. Sag Harbor Cove study area
C. West Neck Bay study area
4. Vertical sections showing hydrogeologic units, freshwater/saltwater interface, boreholes and wells with
screened intervals, and water-table altitude and ground-water levels in March 1995, eastern Suffolk County, N.Y.:
A. Meetinghouse Creek study area
B. Sag Harbor Cove study area
C. West Neck Bay study area
5. Maps of local study areas showing water-table altitude in March 1995, water levels in observation wells, and
location of vertical section, eastern Suffolk County, N.Y.:
A. Meetinghouse Creek study area
B. Sag Harbor Cove study area 18-19
C. West Neck Bay study area
6. Diagrams of vertical sections showing finite-difference model grid, eastern Suffolk County, N.Y.:
A. Meetinghouse Creek study area
B. Sag Harbor Cove study area
C. West Neck Bay study area
7. Diagrams of vertical sections showing generalized model boundary conditions, eastern Suffolk County, N.Y.:
A. Meetinghouse Creek study area
B. Sag Harbor Cove study area
C. West Neck Bay study area
8. Diagrams of vertical sections showing modeled hydrogeologic units, simulated boundary conditions, and
distribution of simulated water-particle pathlines, eastern Suffolk County, N.Y.:
A. Meetinghouse Creek study area
B. Sag Harbor Cove study area
C. West Neck Bay study area
9. Diagrams of vertical sections showing modeled hydrogeologic units, simulated boundary conditions, and position
of a simulated water-particle plume, eastern Suffolk County, N.Y.:
A. Meetinghouse Creek study area
B. Sag Harbor Cove study area
C. West Neck Bay study area
TABLES
1. Depositional environment, lithology, and hydraulic conductivity of Pleistocene glacial deposits of western Cape
Cod, Mass
2. Annual and long-term mean precipitation amounts at Bridgehampton, Greenport, and Riverhead, eastern Suffolk
County, N.Y
3. Relation between National Geodetic Vertical Datum of 1929 and local mean sea level, mean high water, and
mean lower low water datums at five National Ocean Service tidal benchmark locations, Suffolk County, N.Y
4. Relation between National Geodetic Vertical Datum of 1929 and local mean sea level datum for selected water
bodies used in the models of vertical sections A-A«, B-B«, and C-C«, eastern Suffolk County, N.Y.
5. Measured and simulated water levels along vertical section A-A« in the Meetinghouse Creek study area, eastern
Suffolk County, N.Y.
6. Measured and simulated water levels along vertical section B-B« in the Sag Harbor Cove study area, eastern
Suffolk County, N.Y
7. Measured and simulated water levels along vertical section C-C« in the West Neck Bay study area, eastern
Suffolk County, N.Y
[Full Report, Acrobat PDF
(4.6M)]
Adobe Acrobat's .pdf (portable document file) format can be viewed using the
free Adobe Acrobat Reader
available for DOS, Windows, Macintosh, and UNIX.
Users with visual disabilities can visit this site for conversion tools and information to help make PDF files accessible.
| For more information, contact U.S. Geological Survey 425 Jordan Rd Troy, New York 12180 (518) 285-5602 |
To order printed copies, contact U.S. Geological Survey Information Services Box 25286, Federal Center Denver, CO 80225 1-888-ASK-USGS |
Return to the New York District Home Page
| USGS | Water | Biology | Geology | Mapping | On-Line Water Resources Investigations Reports | On-Line Water-Resources Reports |
|
U.S. Department of the Interior, U.S. Geological Survey
Maintainer: New York District Publications URL: http://ny.water.usgs.gov/pubs/wri/wri984181/WRIR98-4181toc.htm Last update: 10:22:24 Tuesday 29 May 2001 Privacy Statement || Disclaimer || Accessibility |
|