May 2021 CURRENT WATER RESOURCES CONDITIONS IN VERMONT

CURRENT WATER RESOURCES CONDITIONS IN VERMONT

U.S. Department of the Interior Seal

May 2021

USGS New England Water Science Center, New Hampshire-Vermont Office

PROVISIONAL DATA: All data presented in this report are provisional and subject to revision.

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Monthly Surface Water Conditions Map

Monthly Groundwater Conditions Map

SURFACE WATER
Station Number	Station Name	Drainage Area (mi²)	Years Of Record	Normal Range (cfs)	Monthly Mean (cfs)	Monthly Mean (in)	Percentile Class
01144000	White River at West Hartford, VT	690	105	1310 - 2430	1410	2.36	Normal
01334000	Walloomsac River near North Bennington, VT	111	89	218 - 379	304	3.16	Normal
04282500	Otter Creek at Middlebury, VT	628	118	1090 - 1870	1700	3.12	Normal
04287000	Dog River at Northfield Falls, VT	76.1	86	116 - 240	128	1.94	Normal
04293500	Missisquoi River near East Berkshire, VT	479	105	835 - 1780	885	2.13	Normal

GROUNDWATER
Station Number	Station Name	Years Of Record	Normal Range (ft)	Monthly Median (ft)	Departure From Monthly Median (ft)	Percentile Class
433240072242901	HLW 54 (Hartland, VT)	50¹	8.54 - 8.10	8.74	0.40	Below normal
434217073010601	PFW 8 (Pittsford, VT)	57¹	36.50 - 35.30	36.10	0.30	Normal
443952072114001	GLW 1 (Glover, VT)	46¹	15.30 - 14.10	15.99	1.39	Below normal
¹ Daily Value Records and Field Readings ² Daily Value Records Only

Flow or Water Level	Percentile Range	Explanation
Low	0^th	The monthly mean streamflow or median water level during this month is the lowest ever recorded during the period of record for this site.
Much below normal	0^th to 10^th	The monthly mean streamflow or median water level during this month is less than the 10^th percentile when compared to all of the months during the period of record for this site.
Below normal	10^th to 25^th	The monthly mean streamflow or median water level during this month is between the 10^th and 25^th percentiles when compared to all of the months during the period of record for this site.
Normal	25^th to 75^th	The monthly mean streamflow or median water level during this month is between the 25^th and 75^th percentiles when compared to all of the months during the period of record for this site.
Above normal	75^th to 90^th	The monthly mean streamflow or median water level during this month is between the 75^th and 90^th percentiles when compared to all of the months during the period of record for this site.
Much above normal	90^th to 100^th	The monthly mean streamflow or median water level during this month is greater than the 90^th percentile when compared to all of the months during the period of record for this site.
High	100^th	The monthly mean streamflow or median water level during this month is the highest ever recorded during the period of record for this site.