!n
!n
!n
!n
!n
!n
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!n
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!n
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H EB R O N
G LA S T O N BU R Y
CO LCH E S T E R
EA S T H A M P T O N
M A R LBO R O U G H
P O R T LA N D
A N D O V E R
CO LU M BIA
M ID D LET O W N
BO LT O N
LEBA N O N
EA S T H A R T FO R D
EA S T H A D D A M
A
SB
AA
AA
AA
B
AA
A
A
AA
Amston
Addison
Hopewell
Buckingham
Middle Haddam
Pocotopaug Lake
East Glastonbury
North Westchester
Post Hill
Mill Hill
Mack Hill
Gulf Hill
Bull Hill
Clark Hill
Baker Hill
Utley Hill
Paper Rock
Burnt Hill
Clark Hill
Great Hill
Fuller Hill
Larson Hill
Carter Hill
Twin Islands
Burrows Hill
Frankel Hill
Chalker Hill
Buckley Hill
Raccoon Hill
Prospect Hill
Belltown Hill
Monument Hill
Chestnut Hill
Penfield Hill
John Tom Hill
Scraggy Island
New Boston Hill
Bald Hill Range
Town Woods Hill
Kongscut Mountain
Meshomasic Mountain
Minnechaug Mountain
AB
SB
A
A
B
A
A
A
A
A
A
A
A
A
AA
A
A
A
A
A
A
A
A
A
A
A
B
May Pond
H-H Pond
Day Pond
Day Pond
Loos Pond
Levy Pond
Wolf Brook
Post Brook
Pine Brook
Pine Brook
Mint Brook
Mine Brook
Mine Brook
Judd Brook
Flat Brook
Flat Brook
Fawn Brook
Fawn Brook
Cold Brook
Carr Brook
Buck Brook
Woods Pond
White Pond
Gasper DamTreat Pond
Smith Pond
Makas Pond
Hazel Pond
Hales Pond
Celio Pond
Bonas Pond
Webb Swamp
Nipsic Bog
Daly Swamp
Smith Brook
Hales Brook
Green River
Cabin Brook
Warner Pond
Strong Pond
Shacob Pond
Little Pond
Laking Pond
Holman Pond
Hodges Pond
Carini Pond
Bestor Pond
Beadle Pond
Amston Lake
Senate Brook
Salmon River
Salmon Brook
Nelkin Brook
Meadow Brook
Jeremy River
Jeremy River
Cheney Brook
Burnap Brook
Wallins Pond
Roulston Dam
Supples Pond
Pagachs Pond
Novista Pond
Markham Pond
Landons Pond
Kelseys Pond
Golfers Pond
Getzoff Pond
Fagnoni Pond
Diamond Lake
Babcock Pond
Andover Lake
Ahlbert Pond
Addison Pond
Bishop Swamp
Merrow Swamp
Willeys Brook
Wildcat Brook
Roaring Brook
Raymond Brook
Hubbard Brook
Daniels Brook
Williams Pond
Williams Pond
Robinson Pond
Ostrager Pond
Keighley Pond
Hulseman Pond
Holbrook Pond
Gay City Pond
Flanders Pond
Columbia Lake
Brainard Pond
Straddle Brook
Stocking Brook
Standish Brook
Slab Gut Brook
Safstrom Brook
Governor Brook
Gillette Brook
Day Pond Brook
Strombery Pond
Gambolati Pond
Clubhouse Pond
Mott Hill Brook
Massinger Brook
Fawn Hill Brook
Dickinson Creek
Dickinson Creek
Upper Foot Pond
Turn Lathe Pond
State Park Pond
Simon Hunt Pond
Saint Jean PondPreli Pond No 2
Pocotopaug Lake
Minnechaug Pond
Hall Pond Upper
Hall Pond Lower
Great Hill Pond
Girl Scout Pond
Pocotopaug Creek
Day Meadow Brook
Cattle Lot Brook
Blackledge River
Blackledge River
West Street Pond
Turkey Farm Pond
Shoddy Mill Pond
Lower Woods Pond
Lake Terramuggus
Hales Brook Pond
Golf Course Pond
Wintergreen Brook
Rattlesnake Brook
Hope Valley Brook
Dark Hollow Brook
Connecticut River
Slocomb Pond No 2
Scaglia Pond No 2
Scaglia Pond No 1
Jones Street Pond
Foot Sawmill Pond
Chapman Road Pond
Camp Bennett Pond
Bell Company Pond
Muddy Gutter Brook
Foot Sawmill Brook
Star Brothers Pond
Portland Reservoir
Holland Brook Pond
Columbia Lake Brook
Wellesway Club Pond
Del Reeves Road Dam
Bevan Brothers Pond
Blackledge River Dam
Foote Hill Farm Pond
Cold Brook Reservoir
Buckingham Reservoir
Great Hill Pond Brook
Pine Meadow Park Pond
Hope Valley Road Pond
West Branch Fawn Brook
Summit Tread Mill Pond
Burrows Hill Road Pond
Breezy Corner Road Pond
Upper Columbia Lake Brook
Upper Colchester Road Pond
Lower Colchester Road Pond
Artistic Wire Company Pond
Salmon River AirfieldAirport
Center School
Eastbury School
Hopewell School
Memorial School
Rham High School
Hebron Elementary
Gilead Hill School
Andover Elementary
Rham Middle School
Smith Middle School
East Hampton Middle
Hebron Avenue School
Gideon Welles School
East Hampton High School
Elmer Thienes-Mary Hall Elementary
State Hwy 2
State H
wy 66
State
Hwy 8
5
State Hwy 16
High St
East St
Hebron Ave
Gilead St
State Hwy 94
Main St
Airline Trl
Church St
Wall St
Middletown Rd
State Hwy 316
West St
Colchester Ave
West Rd
North St
State Hwy 83
Manc
heste
r Rd
Jone
s St
Old Hartford Rd
Neipsic Rd
State
Hwy 1
49
Westchester Rd
Jones Hollow Rd
Martin Rd
Westche
ster Hwy
Hill R
d
Hebron Rd
Paper Mill Rd
Tartia
Rd
Young St
State Hwy 196
Saner Rd
Bell S
t
Flood Rd
White Birch Rd
River Rd
Gilea
d Rd
New London Tpke
Cox Rd
Weir St
Lake Dr
Bull Hill Rd
Boston Hill Rd
Route 6
Mott Hill Rd
Old Slocum Rd
Cone Rd
Hampto
n Rd
Grayville Rd
Miller Rd
New Boston Rd
Old C
olche
ster R
d
Penfield Hill Rd
Hog H
ill Rd
Thompson St
Hope Valley Rd
Clark Hill Rd
Skinner Ln
Cabin Rd
Middletown Ave
Del R
eeves
Rd
Leesville Rd
Erdoni Rd
US Hwy 6
Burnt Hill Rd
Chapman Rd
Amston Rd
Route
66
Route 87
Cato Corner Rd
Pinebrook Rd
Mulford Rd
Clark Rd
Toll Gate Rd
Buckley Hill Rd
Edstr
om R
d
Burro
ws H
ill Rd
Ogden Lord Rd
Gulf Rd
Buck
Rd
Bulkeley Hill Rd
Eastbu
ry
Jagger Ln
Fern St
Mill Stream Rd
Wood
land S
t
Hope
well R
d
Lake Rd
Keen
ey St
Abbey Rd
Chestnut Hill Rd
Wopowog Rd
Willimantic Rd
State Hwy 151 Daniel St
Smith St
Coldbrook Rd
Forest LnJurovaty Rd
Old Hebron Rd
Daly Rd
Birch
Mou
ntain
Rd
Maple St
New Hartford Rd
Ash Swamp Rd
Taylor
Rd
Reidy Hill Rd
Addison Rd
Porter Rd
Standish Rd
State Hwy 87
Count
ry Club
Rd
South Rd
Goodale Hill Rd
London Rd
Terp Rd
Matson Hill Rd
Prospect Hill Rd
Strickland St
Wellswood Rd
Nelkin Rd
Childs Rd
Great Hill Rd
Portland Rd
Champion Hill Rd
Reservoir Rd
Davidson Rd
Emily Rd
Robe
rts R
d
Portlan
d Rese
rvoir R
d
Mill Ln
Park
Rd
Hoadly Rd
Dickin
son R
d
Parker Rd
Hall Rd
Wickham Rd
Collie Brook Rd
Niles Rd
Cheney Rd
Marlb
oroug
h Rd
Flat Brook Rd
Hillcrest Dr
Flanders Rd
Charles Ln
Mill Hill R
d
Kinne
Rd
Kinney Rd
Eastbury Hill Rd
Laurel Ln
Old Marlborough Tpke
Jerry Daniels Rd
Portland Cobalt RdDepot Hill Rd
Diamond Lake Rd
Dpo Hill Rd
Middle Haddam Rd
Skinn
er St
Howe Rd
Quinn
Rd
Townsend Rd
Pond Rd
Johnson Rd
Hillcrest Hts
Hunt Rd
Isleib Rd
Islieb Rd
Midwood Farm Rd
Belltown Rd
Hurlburt St
Coxs Rd
Windham Rd
Bigelow Rd
Stanley DrLakeside Dr
Maple Rd
Stage Harbor Rd
Slocum Rd
Great Hill Pond Rd
Red School Rd
Reed
Rd
East Hampton Rd
Crouch Rd
Trinity Ave
Tall Timbers Rd
Basket Shop Rd
Hale Rd
Barton Hill Rd
Bay Rd
Caffyn Dr
Meeting House Rd
Mountain Rd
Great Swamp Rd
Gadpouch Rd
Cones Rd
Woodhaven Rd
Sunset Dr
Markham Rd
School Rd
Marlb
oro Rd
Spice Hill Dr
Elliot Dr
Gillettes LnLoveland Rd
Hodge Rd
Quarry R
d
Forest St
Unionvil
le Rd
Long H
ill Rd
Stone House Rd
Chitte
nden
Rd
Stollm
an Rd
Cann
on D
r
Day Pond Rd
Joel Dr
Horizon Ln
Finley Hill Rd
Jobs Pond Rd
Scarboro Rd
Waterhole Rd
Williams Rd
Cemetery Rd
Feldspar RdgImperial Dr
Paxton Way
Dr Foote Rd
Hardy Rd
Wassuc Rd
Chimney Sweep Hill Rd
Mill St
Candlelight Dr
Cotton Hill Rd
Edgerton St
Kellogg Rd
Summ
it St
Hill St
Butle
r Dr
Natchaug Dr
Peck Ln
Castorin Rd
Jan Dr
Oakwood Dr
Chalker Hl
Staeth Rd
Colton Rd
Timrod Trl
Sunn
y Slop
es
Lewi
s Rd
Old Ando
ver Rd
Northam Rd
Brook Xing
Attaw
anho
od Tr
l
Lynn S
t
South St
Laurel Rdg
Cider M
ill Rd
Majorie Cir
Boretz
Rd
Linwood Cemetery Rd
Hickory Dr
Grandview Dr
Skinner Rd
Phelps Rd
Christopher Rd
Sunny
slopes
Rd
Oak Dr
Pepperidge Rd
Shailor Hill Road 1
Windrush Ln
Webs
ter Ln
Jobs Run Rd
Miles Standish Rd
Buckboard Ln
Marjo
rie C
ir
Mill Lane Rd
Clark Ln
Brook St
Loomis Rd
Black
man R
d
Senate Brook Dr
Culver Ln
Broo
ks Xi
ng
Sherry Dr
Blish Rd
Fox M
dw
Coms
tock B
ridge
Rd
Lincoln Dr
Deer Run
Dr
Breezy Corners Rd
School House Ln
Stonybrook Dr
Park A
ve
Brian
Dr
Old Amston Rd
Fox Rdg
Fern Ln
Peach Farm Rd
Thompson Hill Rd
Parkside Dr
Brewer Rd
Birch
Trl
Overlook Rd
Long Crossing Rd
Shoddy Mill Rd
Williamsburg Rd
Bear Swamp Rd
Indian Field Rd
Stewart Hill Rd
Congress Dr
Jennife
r Dr
Sherwood Ln
Fawn Run
Stoneridge Rd
Minnechaug Dr
Planeta Rd
Keigh
ley Po
nd R
d
Balaban Rd
Myrna Dr
Elizabeth Dr
Old Middletown Ave
Olde Hall Rd
Ceda
r Ridg
e Ter
Foote Ln
Blackledge Dr
Shailor Hill Rd
Pickeral Lake Rd
Cedar Ridge Dr
Fernwood Dr
Broadway St
Forest Dr
Warner Ct
Baker Hl
Pine Rd
Shari
ngton
Dr
Holly Ln
Hills Ave
Van Cedarfield Rd
Bevin Blvd
Old Farms Rd
Skyline Dr
Gina Ln
Slocum Road NO 2
Quiet Woods Rd
Penfield Hl
Heron Hill Rd
Barton Hill St
Harvest Ln
Picker Rd
Crestwood Dr
James Ln
Cavan Ln
Uconn Ave
Bass
Rd
Debi Cir
Blue Hills Trl
Bailey St
Knollwood Dr
Merritt Valley Rd
Linwood
Ave
Country Ln
Heritage Dr
Worthington Rd
Brighton Rd
High W
ood D
r
Victoria Dr
Bausola Rd
Hemlock Dr
Pippin Dr
Unca
s Dr
Ridge Rd
Millstone Dr
Tarragon Dr
Holbr
ook P
ond R
d
Gavin
Dr
Millstone Rd
Abby Dr
Belle Woods Dr
Branch Dr
Leigh Gate Rd
Auburn Knl
Bidwe
ll St
Rivendell Rd
Staple
s Ln
Highlan
d Dr
Tamarac Dr
Gran
ite R
d
Apple Ln
Stonepost Rd
Walnut Dr
Birch Rd
Emily Ln
Sunrise Dr
Stephen Tom Rd
Bayberry Rd
Bellridge Rd
Uplands Way
Viola Dr
Carolyn Dr
Wangonk Trl
Farmwood Dr
Ola Ave
Robinson Rd
Knob
Hill Rd
Lake Ridge Dr
Stony Brook Dr
Prentice Hill Rd
Smith
Farm
Rd
Orchard St
Mark Dr
Carriage Dr
Deer Run
Settlement Rd
Alice Ln
Jolin Ln
Brentw
ood D
r
Heatherwood Dr
William Dr
Dogwood Dr
Ridgewood Dr
Tiffany Ct
Brown Rd
Laura Dr
Stand
ish D
r
Spruce Ln
Three Mile Rd
Old Daniels Ln
Quail
Run
Martin Ter
Avalon Ln
Gill St
Fairway Xing
Midland Dr
Rampart Dr
Fox Den Rd
Yorkshire Dr
April Dr
Pine Trl
Phoenix Rd
Kristi Ln
Willow Dr
Shagbark Rd
Farrell Rd
Upton R
d
Russet Rd
Pocotopaug Dr
Zeke Rd
Coco Dr
Jaffee
Ter
Echo Ln
Denler DrPettengill R
d
Saffron Ln
Town Farm Rd
Thomassian Dr
Dale
Dr
Crestview Dr
Westgate Rd
Mai Rd
Slater
Rd
Brennan Rd
Austi
n Dr
Charles Mary Dr
High Point Rd
Ches
terfie
ld Rd
Lena Ln
Sentinal Woods
Laure
l Trl
Pond View
Ln
Copley R
d
Kristen Ln
Cricket Ln
Old Coach Rd
Arden Dr
Seven Hills Xing
Chatham Hl
Wood Pond Rd
Mayflower Dr
Cambridge Dr
Bernie
s Way
Tara Dr
Boulder Rd
Heywood Dr
Meeks Point Rd
Harlan Pl
Royal Oaks Ave
Bridge St
Salt Box Rd
Riverview Cir
Newell Ln
Barbara Ave
Gideon Ln
James St
Rockledge Dr
Cote Ln
Hawks Lndg
Owens Ln
Holly Dr
Lakewood Rd
Olde Wood Rd
Diane Ln
Carve
r Ln
Lebano
n Ave
Settle
rs Ln
Hartinger Rd
Farm Gate Rd
Birchwood Dr
Coates Farm Rd
Shipy
ard Rd
Hebron Ldg
Shailor Hill Road 2
Murphy Rd
Brookhill Dr
Hills L
n
Shipman Dr
Knowles Rd
Pepperbush Dr
Old Depot Hill Rd
Valli Dr
Woodhaven Dr
Purtill St
Ridgeview Dr
Robin Rd
Hickory Rd
Brookhaven Dr
Hidden
Wood
s Dr
Sadlo
n Rd
Curry Ln
Hyde Rd
Cardinal Dr
Pennywise Ln
Cone
Blvd
Penee Ln
Kongscut Valley Trl
Old Town Rd
Penw
ood X
ing
Wells Ave
Everg
reen T
er
Nove
lli Pl
Ryan
Rd
Pond Cir
Pyquag Ln
Hillside Ln
Grist
Mill L
n
Johnny Cake Ln
Sears Pl
Good
rich R
d
Deer
Mead
ow Ln
Oneill Ln
Springside Trl
Sunri
se Ln
Lake Blvd
Phea
sant
Fairview Run
Oak Farms Rd
Bricky
ard Rd
Nutm
eg C
ir
Levy Rd
Cortland Ln
Sach
em Dr
Portage Trl
Quincy Rd
Foote Rd
Flannery Row
Coldspring Xing
Saddle Ridge Rd
Lower Woodland Ter
Rose
r Dr
Fieldstone Dr
Gree
ntree
Dr
Turner Rd
Gildersleeve Dr
Accornero Ln
Shady Hill Ln
High Mdws
Glenwood Dr
Tavern Ln
Buckingham Dr
Mohawk Trl
Nicole Dr
Old West
High St
Boulder Cir
Liberty Dr
Huntingridge Dr
Old Clark Hill Rd
Gristm
ill Rd
Rose Ln
Deer Rock Dr
Franc
is Dr
Cranesbill
Chase Hollow Ln
Carrier Rd
Judd Brook Rd
Felicia Baber Ln
Forest View Ln
Mill Landing Rd
Brow
ns M
ill Rd
Kennedy Dr
Karlswood Rd
Fuller Rd
Eastern Blvd
Edge
wood
Ln
Village Ct
Pinac
le Rd
Emerson Rd
Lady
slipp
er Ln
Jeremy River Dr
Cooley Rd
Murray Dr
Karen Lee Rd
Michael Dr
Gary Ln
Whispering Woods Rd
Saw Mill Way
Blueberry Ln
Suns
et Blv
d
Brack Farm Rd
Princeton Ln
Berkshire Dr
Bisse
ll Ridg
e Rd
Cobblestone Rd
Hope Ln
Scofield Rd
Margaret LnPinnacle Ln
Carria
ge Ln
Partridge Lndg
Treat Rd
Raymond Rd
Cardinal Rd
Beechcrest Dr
Griswold Ln
Candlewood Dr
Hickory Ln
Richardson Dr
Jeremiahs Way
Jacobson Farm Rd
West
Ln
Seminole Trl
Gem Dr
Island St
Green River Rd
Montano Rd
Debra Ln
Some
rset R
d
Beech Pl
Eagle
Roc
k Trl
Point Rd
Ledge Rd
Applewood Ln
Sinco Pl
Sturge
on R
iver R
d
Kingswood Dr
Ridgecrest Rd
Pendleton Dr
Olde Flatbrook Rd
Renee DrMelburn Ave
Gregory Hill Dr
Coleman Rd
Georg
etown
Dr
Sandy Ln
Lindholms Cor
Crestdale Rd
Shelb
urne W
ay
Hi Gate Farms Rd
Jurov
aty Ln
Sunny Slope Dr
Hardi
n Rd
Hayfield Ln
Old Route 2
Bader Ln
Ellis Rd
Villag
e Ln
Juniper Ln
Wren
Holw
Gilead Ldg
Dziok Dr
Norman Dr
Lisa Ct
Hickory Ct
Shad
Row
Hearths
tone D
r
Bruce Cir
Smithbrook Ter
North
Holw
Pilgard Ln
Sand Hill Ln
Pinemeadow Dr
Lakeview Dr
Hilltop Rd
Judd Brook Ln
Maplewood Dr
Coleman Ln
Ches
tnut H
ill Ter
Chels
ea Rd
Sears Park
Ashley Ct
Barbers
Way
Pierce Ln
Hill's Farm Rd
Cragin Ct
Cider Mill Ln
Walnut
Dr
Cone Rd
Cone Rd
Ridge Rd
Lake
Rd
Chestnut Hill Rd
Mott Hill Rd
Kinney Rd
Harvest Ln
Chestnut Hill Rd
South Rd
Country Ln
New Hartford RdRiver Rd
Coldbrook Rd
Cedar Ridge Dr
School Rd
Fieldstone DrCountry
Ln
Oakwood Dr
West St
Sharin
gton D
r
Daly Rd
Paper Mill Rd
Clark H
ill Rd
West
St
Old Hebron Rd
Main St
Loomis Rd
Chapman Rd
Hebron Rd
Knollw
ood Dr
Main St
Jennifer Dr
Gadpouch Rd
Jagger Ln
State Hwy 2
Mott Hill Rd
Park Rd
Carriage Dr
Old Town R
d
Laure
l Trl
West
St
Sunset Dr
Lake Rd
Hale Rd
Lake Rd
Dickinson Rd
Middle Haddam Rd
Reservoir Rd
Parke
r Rd
Lake Rd
Main St
Mountain Rd
Wall St
Middletown Rd
School Rd
Blackledge Dr
Reed Rd
Bear
Swam
p Rd
Mulford R
d
Oak Dr
Buckb
oard
Ln
Heritage Dr
River
Rd
Robinson Rd
Hebron Rd
Carriage Dr
Exit 9
Exit 10
Exit 16
Exit 13
Exit 18
Exit 12
Exit 15
Exit 11
Exit 17
Exit 16
Exit 13
Exit 10
Exit 18
£¤6
SV316
SV85
SV2
SV66
SV149
SV16
SV94
SV87
SV196
SV83
SV151
SV2
6 4 3
57
122
88
MAP LOCATION
MarlboroughMarlborough
W ATER Q UALITY CLAS S IFICATIONSMAR LBOR OUGH, CT
SCALE 1:24,000 (1 inch = 2000 feet) when map is printed at original size
1 0 10.5 Miles
1 0 10.5 Kilometers
1000 0 1000 2000 3000 4000 5000 6000 7000 Feet
ADOPTED DATES
W ater Q uality S tandardsFebruary 25, 2011
Thames R iver, Pawcatuck R iver and Southeast CoastalBasins: December 1986
Connecticut R iver and South Central Coastal Basins:February 1993
Housatonic R iver, Hudson R iver and Southw est CoastalBasins: March 1999
S TATE OF CONNECTICUTDEPAR TMENT OFENER GY & ENV IR ONMENTAL PR OTECTION79 Elm S treetHartford, CT 06106-5127
State Plane Coordinate System of 1983, Zone 3526Lambert Conformal Conic Projection
North American Datum of 1983
MAJOR BASINS1 Paw catuck2 Southeast Coast3 Thames4 Connecticut5 South Central Coast6 Housatonic7 Southw est Coast8 Hudson
£
S UR FACE W ATER Q UALITY CLAS S ES
Final Aquifer Protection Area (Level A)Major Basin Boundary
GR OUND W ATER Q UALITY CLAS SES
NOTES:S urface W ater Classifications beginning w ith S refer to Coastal and Marine S urface W ater.B* is a subset of Class B where no direct w astew ater discharges are allow ed other than thoseconsistent with Class AA, A and SA surface w aters.
GA (white background)GAA, GAAsGA, GAA may not meet current standardsGBGC
Area of Contribution to Public Supply Well
AAAB, B*SASB
AAAB, B*SASB
EX PLANATIONW ATER Q UALITY CLAS S IFICATIONS (W Q C) MAPS are oneof the elements of the W ater Q uality S tandards (W Q S ) for theS tate of Connecticut. The W Q S are a part of Connecticut's cleanw ater program and are essential for protecting and improving waterquality. The W Q S follow the principles of Connecticut's CleanW ater Act which is in Chapter 446K of the Connecticut GeneralS tatutes. The W Q S provide policy guidance in many areas, forexample decisions on acceptable discharges to water resources,siting of landfills, remediation or prioritization of municipalsew erage system projects. The first two elements of the W Q S arethe S tandards, which set an overall policy for management of waterquality, and the Criteria, which are descriptive and numericalstandards that describe the allowable parameters and goals forvarious water quality classifications. A discussion of these twoelements is found in the W ater Q uality S tandards documentavailable on the CT DEEP website. The third element is theClassifications and the W ater Q uality Classification Maps whichshow the Classification assigned to each surface and groundw aterresource throughout the S tate. The W Q S are adopted using a publicparticipation process. The W Q C maps are also adopted using apublic participation process but go through hearings separatelyfrom the S tandards and Criteria hearings. R evision and adoption ofthe W Q C data occurs in accordance with the public participationprocedures contained in S ection 22a-426 of the ConnecticutGeneral S tatutes. Ground W Q C is subject to Connecticutregulation and changes must be review ed and adopted. All changesto the S urface W Q C require an adoption process which is subjectto federal review and approval in addition to CT regulation. Theadoption dates for the W Q C by major drainage basin are:Housatonic R iver, Hudson R iver and Southw est Coastal Basins -March 1999; Connecticut R iver and South Central Coastal Basins -February 1993; Thames R iver, Pawcatuck R iver and SoutheastCoastal Basins - December 1986. S urface W ater Classifications donot change after the adoption date until the next major revision.Ground W ater Classifications may change after the adoption dateunder specific circumstances. The map may have more than oneW Q C adoption date because a town may be in more than onemajor drainage basin.SUR FACE W ATER S in Connecticut are divided into freshw aterclassified as AA, A, B or B* and saline waters classified as SA orSB. Class AA designated uses are existing or proposed drink ingw ater supplies; habitat for fish and other aquatic life and wildlife;recreation; and water supply for industry and agriculture. Class Adesignated uses are habitat for fish and other aquatic life andw ildlife; potential drink ing water supplies; recreation; navigation;and water supply for industry and agriculture. Class SA designateduses are habitat for marine fish, other aquatic life and wildlife;shellfish harvesting for direct human consumption; recreation;industrial water supply; and navigation. Class B designated usesare habitat for fish and aquatic life and wildlife; recreation;navigation; and industrial and agricultural water supply. Class B*,applicable to Candlewood Lak e, is a subset of Class B and isidentical in all ways to the designated uses, criteria and standardsfor Class B waters except for the restriction on direct discharges.Class SB designated uses are habitat for marine fish and aquaticlife and wildlife; commercial shellfish harvesting; recreation;industrial water supply; and navigation.
S urface waters which are not specifically classified shall beconsidered as Class A or Class AA. S urface waters in GA groundw ater areas are assumed Class A or Class SA unless otherwiseindicated. S urface waters in GAA ground water areas are assumedClass AA unless otherwise indicated.On the W Q C map a surface water quality goal of A is representedby blue colored water bodies. S urface water quality goal of AA isrepresented by purple colored water bodies. S urface water qualitygoal of B is represented by gold colored water bodies.GR OUND W ATER S in Connecticut are classified as GAA, GA,GB and GC. Class GAA designated uses are existing or potentialpublic supply of w ater suitable for drink ing without treatment andbaseflow for hydraulically-connected surface water bodies. TheClass GAAs is a subclass of GAA for ground water that is tributaryto a public water supply reservoir. The area of contribution to apublic water supply well is represented by a 500-foot radius aroundthe well and is assumed to be Class GAA unless otherwiseclassified. Class GA designated uses are existing private andpotential public or private supplies of water suitable for drink ingw ithout treatment and baseflow for hydraulically-connectedsurface water bodies. All ground waters not specifically classifiedare considered as Class GA. Class GB designated uses areindustrial process water and cooling waters and baseflow forhydraulically-connected water bodies and is presumed not suitablefor human consumption without treatment. Class GC designateduses are assimilation of discharges authorized by theCommissioner pursuant to S ection 22a-430 of the General S tatutes.On the W Q C map GA is represented by white colored land areas.Class GAA and class GAAs are represented by blue colored landareas. The area of contribution to a public water supply well isshown by a blue cross-hatch overprint. A notation of GAAfollowed by a state abbreviation indicates a watershed thatcontributes to the public water supply for a state other thanConnecticut. Class GA or Class GAA areas that currently may notbe meeting the GA or GAA standards are represented on the W Q Cmaps by tan colored land areas. Class GB is represented by greencolored land areas. Class GC is represented by magenta coloredland areas.FINAL AQ UIFER PR OTECTION AR EAS (Level A) are includedon the W Q C maps for informational purposes. These areas areanticipated to be reclassified GAA during the next major basinupdates, subject to public participation. The Aquifer ProtectionProgram helps protect Connecticut’s public drink ing waterresources by delineating aquifer protection areas (also calledw ellhead protection areas) for public supply wells and establishingland use regulations within these areas. These areas represent theland area contributing ground water to active public water supplywells or well fields that serve more than 1000 people and are set insand and gravel aquifers (stratified drift deposits).
DATA SOUR CESW ATER Q UALITY CLAS S IFICATIONS DATA – W ater qualityclassifications shown on this map are based on information fromthe following digital spatial datasets that are typically showntogether – Ground W ater Q uality Classifications Poly, S urfaceW ater Q uality Classifications Line, and S urface W ater Q ualityClassifications Poly. The map legend above reflects the content ofthese three data sources. These W Q C data were initially compiledon 1:24,000-scale 7.5 minute USGS topographic quadrangle mapsand later digitized at 1:24,000 scale. For example, the S urfaceW ater Q uality Classifications Line and S urface W ater Q ualityClassifications Poly digital data assigns surface water qualityclassifications to water bodies such as rivers, streams, reservoirs,lak es, ponds and coves found in 1:24,000-scale hydrography dataavailable from CT DEEP. The hydrography may not include all thew aterbodies in Connecticut. The Ground W ater Q ualityClassifications Poly data assigns ground water qualityclassifications, at 1:24,000 scale, to the remaining land areas inConnecticut.AQ UIFER PR OTECTION AR EA DATA – Aquifer ProtectionAreas shown on this map are from the Aquifer Protection Areadigital dataset which contains polygon data intended to be used at1:24,000 scale. The dataset contains regulated areas classified asLevel A Aquifer Protection Area (Final) and Level B AquiferProtection Area (Preliminary). The Level B areas are not shown onthe W Q C maps. The data was collected from 1991 to the presentand is actively updated as Final area mapping replaces earlierPreliminary areas. The Aquifer Protection Areas are delineated by
the individual water companies owning the well fields andsubmitted to the CT DEEP for approval. Preliminary mappingprovides a general estimate of the area contributing ground waterto the well field. Final mapping is based on extensive, site-specific,detailed modeling of the ground water flow system. CT DEEP mayadjust Final area boundaries to be consistent with 1:24,000 scaletopography and base map data where appropriate during theapproval process.MAJOR DR AINAGE BASIN DATA – Major drainage basinsshown on this map are from Major Basin Line data developed byCT DEEP and intended to be used at 1:24,000 scale.BASE MAP DATA - Based on data originally from 1:24,000-scaleUSGS 7.5 minute topographic quadrangle maps published betw een1969 and 1992. It includes political boundaries, railroads, airports,hydrography, geographic names and geographic places. S treets andstreet names are from Tele Atlas® copyrighted data. Base mapinformation is neither current nor complete.R ELATED INFOR MATIONThis map is intended to be printed at its original dimensions inorder to maintain the 1:24,000 scale (1 inch = 2000 feet).W ATER Q UALITY S TANDAR DS - Go to the CT DEEP websitefor a summary and the full text of the “W ater Q uality S tandards”and for other information on water quality.AQ UIFER PR OTECTION AR EAS - Go to the CT DEEP websitefor more information.
Map created by CT DEEPOctober 2017Map is not colorfast
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