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Open-File Report 2013–1135

Prepared in cooperation with the States of New Hampshire and Vermont and with other agencies

Hydrologic Conditions in New Hampshire and Vermont, Water Year 2011

By Richard G. Kiah, Jason D. Jarvis, Robert F. Hegemann, Gregory S. Hilgendorf, and Sanborn L. Ward

Thumbnail of and link to report PDF (1.13 MB)Abstract

Record-high hydrologic conditions in New Hampshire and Vermont occurred during water year 2011, according to data from 125 streamgages and lake gaging stations, 27 creststage gages, and 41 groundwater wells. Annual runoff for the 2011 water year was the sixth highest on record for New Hampshire and the highest on record for Vermont on the basis of a 111-year reference period (water years 1901–2011). Groundwater levels for the 2011 water year were generally normal in New Hampshire and normal to above normal in Vermont.

Record flooding occurred in April, May, and August of water year 2011. Peak-of-record streamflows were recorded at 38 streamgages, 25 of which had more than 10 years of record. Flooding in April 2011 was widespread in parts of northern New Hampshire and Vermont; peak-of-record streamflows were recorded at nine streamgages. Flash flooding in May 2011 was isolated to central and northeastern Vermont; peak-of-record streamflows were recorded at five streamgages. Devastating flooding in August 2011 occurred throughout most of Vermont and in parts of New Hampshire as a result of the heavy rains associated with Tropical Storm Irene. Peak-of-record streamflows were recorded at 24 streamgages.

First posted July 10, 2013

For additional information contact:
Office Chief
U.S. Geological Survey
New England Water Science Center
New Hampshire-Vermont Office
331 Commerce Way, Suite 2
Pembroke, NH 03275
(603) 226–7800
http://nh.water.usgs.gov

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Suggested citation:

Kiah, R.G., Jarvis, J.D., Hegemann, R.F., Hilgendorf, G.S., and Ward, S.L., 2013, Hydrologic conditions in New Hampshire and Vermont, water year 2011: U.S. Geological Survey Open-File Report 2013–1135, 36 p., http://pubs.usgs.gov/of/2013/1135/.



Contents

Abstract

Introduction

Hydrologic Conditions in New Hampshire and Vermont, Water Year 2011

Summary

Acknowledgments

References Cited


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