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EDEN
STOWE
JAY DERBY
MILTON
LOWELL
PERU
FAIRFIELD
IRA
TROY
RIPTON
NEWBURY
DANVILLE
GROTON
LEWIS
DANBY
SWANTON
ESSEX
ORWELL
BETHEL
CHESTER
CHITTENDEN
HIGHGATE
JAMAICA
DORSET
CABOT
RUPERT
POWNAL
CALAIS
ADDISON
BENSON
BARNET
BARTON
CORINTH
LINCOLN
CAMBRIDGE
PAWLET
CONCORD
BRIGHTON
BOLTON
BERLIN
DOVER
WINHALL
BARNARD
TOPSHAM
ALBANY
ALBURGH
BURKE
GEORGIA
VICTORY
PEACHAM
BRISTOL
FAIRFAX
HALIFAX
LYNDON
SHARON
SUTTON
ELMORE
JOHNSON
FERRISBURG
AVERILL
GLOVER
GRANBY
NORWICH
WALDEN
ROCHESTER
FERDINAND
GRANVILLE
READING
UNDERHILL
WARREN
ORANGE
BRIDPORT
NORTON
PLYMOUTH
COLCHESTER
DUXBURY
STRATTON
RANDOLPH
CHELSEA
MENDON
NEWARK
LUDLOW
ROXBURY
ENOSBURG
HARTLAND
CHARLOTTE
HARTFORD
FRANKLIN
KIRBY
HOLLANDRICHFORD
THETFORD
SHELDON
WESTON
POULTNEY
JERICHO
POMFRET
BRANDON
KILLINGTON
NEWFANE
SHOREHAM
CANAAN
WOLCOTT
WOODFORD
GRAFTON
IRASBURG
WATERBURY
FAYSTON
HANCOCK
RYEGATE
SANDGATE
PITTSFORD
GUILFORD
MONTGOMERY
TUNBRIDGE
MORGAN
SPRINGFIELD
ROYALTON
FLETCHER
MORRISTOWN
BERKSHIRE
LUNENBURG
STRAFFORD
ARLINGTON
SHELBURNE
MARLBORO
HARDWICK
MONKTON
VERSHIRE
CASTLETON
STAMFORD
NORTHFIELD
WHEELOCK
WESTFIELD
SOUTH HERO
SHREWSBURY
ST. ALBANS TOWN
MIDDLESEX
NEW HAVEN
WELLS
NORTH HERO
WESTFORD
CAVENDISH
MARSHFIELD
HYDE PARK
BRAINTREE
MOUNT HOLLY
HINESBURG
BRIDGEWATER
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MORETOWN
SUNDERLAND
PUTNEY
STARKSBORO
WOODBURY
WILMINGTON
TOWNSHEND
SHAFTSBURY
BROOKFIELD
WESTMOREBELVIDERE
BENNINGTON
STOCKBRIDGE
BLOOMFIELD
WATERFORD
ROCKINGHAM
WESTMINSTER
BAKERSFIELD
MIDDLEBURY
MANCHESTER
MOUNT TABOR
RICHMOND
WHITINGHAM
SHEFFIELD
GLASTENBURY
WORCESTER
LEMINGTON
GUILDHALL
EAST HAVEN
WALLINGFORD
ANDOVER
CRAFTSBURY
GRAND ISLE
WILLISTON
HUNTINGTON
RUTLAND
READSBORO
WASHINGTON
CHARLESTON
GREENSBORO
TINMOUTH
MAIDSTONE
SALISBURY
WINDHAM
BRADFORD
PANTON
WEATHERSFIELD
NEWPORT TOWN
WILLIAMSTOWN
CORNWALL
FAIRLEE
CLARENDON
COVENTRY
SOMERSET
GOSHEN
VERNON
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ST. JOHNSBURY
BARRE TOWN
SUDBURY
WARDSBORO
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WEST HAVEN
WAITSFIELD
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BRUNSWICK
WINDSOR
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BROWNINGTON
PITTSFIELD
ATHENS
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WHITING
WEYBRIDGE
AVERYS GORE
WATERVILLE
STANNARD
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WEST WINDSOR
FAIR HAVEN
SOUTH BURLINGTON
ISLE LA MOTTE
BURLINGTON
WEST RUTLAND
BROOKLINE
MIDDLETOWN SPRINGS
WALTHAM
MONTPELIER
PROCTOR
LANDGROVE
WARREN GORE
RUTLAND CITY
NEWPORT CITY
BALTIMORE
BUELS GORE BARRE CITY
ST. GEORGE
VERGENNES
WARNERS GRANT
WINOOSKI
ST. ALBANS CITY
73°0'0"W
73°0'0"W
72°0'0"W
72°0'0"W45°0'0"N
44°0'0"N
43°0'0"N
45°0'0"N
44°0'0"N
43°0'0"N73°0'0"W
43°0'0"N
73°0'0"W
44°0'0"N
73°0'0"W
45°0'0"N 72°0'0"W
45°0'0"N
10 0 10 20 305Miles
Scale 1:250,000
.THIS MAP IS A SUMMARY OF WATER
WELL DATA COMPILED BY BEDROCK UNIT. THE MAP IS NOT PROBABALISTIC AND SHOULD NOT BE USED TO PREDICT
YIELD OR DEPTH.
Mean Yield (gpm) of Water Wells Compiled by Bedrock Unit, Vermont.by
Marjorie Gale, Ryan Knox, George Springston, and Laurence Becker2009
DATA AND DATA SOURCES:Number of wells: 92,315Number of located wells: 10,807Mean yield, all wells: 13.76 gpmMedian yield, all wells: 6 gpmMean depth, all wells: 293.02 ft.Median depth, all wells: 260 ft.The well data used in this study is a derivative set of the Vermont Dept. of Environmental Conservation Water Supply Division (WSD) well driller database. The location of the data points is from 1) well driller maps and written descriptions, 2) E911 addresses (3100 wells), and 3) GPS measurements (7707 wells). Only 12% of the wellshave a reliable location.Of the 92,315 wells, most are completed in bedrock, although many have no entry in the "well type" data field. Some corrections were made to the database where numerical errors were obvious and could be reconciled with a driller report. Some well yield values may be inflated due to difficulty in accurately measuring high yields. No attempt was made to discern the rock type in whicha well was actually completed as compared to the rock type at the surface. Where units are thin and shallow dipping, it is possible that a well penetrates one or more formations. Point density is shown in shades of blue, with deeper shades reflecting higher point density.Bedrock map units from the USGS digital data from the 1961 Centennial Geologic Map of Vermont, scale 1:250,000. Reference:USGS Open-File Report 2006-1272 Preliminary Integrated Geologic Map Databases for the United States: Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, Rhode Island and Vermonthttp://pubs.usgs.gov/of/2006/1272/
Vermont Geological Survey Open File Report VG09- 8, Plate 4 of 7
LEGENDMean yield (gpm) by rock unit (symbology from
1961 Centennial Geologic Map of Vermont).
Interstate HighwayUS Highway, VT State Highway or Class 1 Town Highway
Town Boundary
County Boundary
Water body
2 - 4.99 gpmCogOha
nhdOos
pCgn
Oor - no data
Fault - Thrust, normal or reverse
20 - 34.57 gpmCmoDghOb
CuwObb
15 - 19.99 gpm OhiOmco
Omi
Omiv
Os
OCsg
Omcr
OmicOmid
Oml
pCmOCsOCsc
DwDwc
nhu
CsrCssmCtCujCwDwa
Csh
CcCcsCdCdaCf
Cm
CpaCpt
ChbChg
10 -14.99 gpm
ChChm
CpcCpgCph
?Ccg?Ccm?CcrCbh
CbrCbrc
Cdt
ChoChogChopChw
OcbOcbe
Och
OcwOCu
OalOc
Ocbr
OglOgoOhgOmbOmcOmhOmhbOmm
hu OmuOmwOop
SfSs
pCpCsq
udpusuuwdwewgwlewnwswv
CrbCsCoCpCsaCsbCscbCuCuaCubCugDgDga
DwbDwsDSn
5 - 9.99 gpm
Sc
pCgpCsg
OofOpOpaOpvOsp
OgsOhOiOo
ou
DgmDlnhbOa
Cufb
ChtCpgcCscCsczCucCuf
CufpCup
Published by:VT Geological Survey, L. Becker, State GeologistVT Dept. of Environmental ConservationVT Agency of NAtural Resources103 South Main St., Logue CottageWaterbury, VT 05671-2420http://www.anr.state.vt.us/dec/geo/vgs.htm
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