w ater qu l iy c sf on wes tbr ok, c - ct eco...

!n LY M E

E S S E X

C LIN T O N

W E S T B R O O K

K ILLIN G W O R T H

D EEP R IV E R

O LD S AY B R O O K

CH E S T E R

M A D IS O N

O LD LY M E

Hamburg

Fenwick

Fenwood

Winthrop

Ivoryton

Knollwood

Ridgewood

Kelseytown

Pond Meadow

Centerbrook

Grove Beach

Harbor View

Seaview Beach

Clinton Beach

Saybrook Point

Saybrook Manor

Brockway Landing

Otter Cove Estates

Wig Hill

Post Hill

Book Hill

Toby Hill

Lord Hill

Mount Tom

Bushy Hill

Tower Hill

Buell Hill

Mares Hill

The Ledges

Ferry Hill

Pine Ledge

Viney Hill

Rat Island

Quarry Hill

Duck Island

Ingham Hill

Joshua Rock

Mink Island

Money Point

Shippy Hill

Jacobs Peak

Nott Island

Ferry Point

Lynde Point

Salt Island

Selden Neck

Kelsey Hill

Cheney Hill

Beacon Hill

Cedar Knoll

Murdock Hill

Kelsey Point

Goose Island

Mount Archer

Stone Island

Cedar Island

Great Meadow

Spencer Hill

Stumpet Hill

Dunks Island

Tiffany Hill

Haydens Point

Prospect Hill

Hammock Point

Mitchell Hill

Watrous Point

Chapman Point

Poverty Point

Calves Island

Webster Point

Foxboro Point

Willard Island

Saybrook Point

Poverty Island

Millstone Hill

Roast Meat Hill

Brockway Island

Eustasia Island

Cornfield Point

Old Kelsey Point

Candlewood Ledge

Guardhouse Point

Thatchbed Island

Candlewood Ledge

Hammonasset Point

Grove Beach Point

Rattling Valley Hill

Menunketesuck Island

Grove Beach

Middle BeachChapman Beach

Chalker Beach

Clinton Beach

Stannard Beach

Harvey's Beach

Esposito Beach

Quotonset Beach

Pent Road BeachEast Wharf Beach

Hammonasset Beach

Clinton Town Beach

Wesbrook Town BeachGreat Hammock Beach

Old Saybrook Town Beach

Dee Pond

Mud River

Mud Creek

Star Lake

Mill PondLord Pond

Hill Pond

Drop Pond

Deer Lake

Post Cove

Lord CoveSouth Cove

North Cove

Ward Brook

Toms Creek

Mack Creek

Lord Creek

Hurd Brook

Heft Brook

Deep River

Deep Creek

Burr Brook

Back River

Upper PondUpper Pond

Trout Pond

Ryans Pond

Pefes Pond

Otter Pond

Lower Pond

Horse Pond

Dolan Pond

Cedar Lake

Bushy Pond

Brook Pond

Ayers Pond

Pratt Cove

North Cove

South Cove

Mine SwampTrout Brook

Simon Brook

Plane Brook

Hagar CreekFence Creek

Falls River

Falls RiverBushy Brook

Sunset Pond

Rogers Pond

Lampes Pond

Kelsey Pond

Ingham Pond

Indian Lake

Foster Pond

Deitch Pond

Coults Hole

Middle Cove

Willard Bay

Cedar Swamp

Pond Meadow

Cedar Swamp

Selden Creek

Oyster River

Lampes Brook

Joshua Creek

Indian River

Dudley Creek

Beamon Creek

Wrights Pond

Whedons Pond

Vincent Pond

Ellefson Dam

Tiffany Pond

Shailer Pond

Rintoul Pond

Ortners Pond

McVeagh PondJohnson Pond

Hummers Pond

Crystal Lake

Boulder Lake

Olivers Hole

Hamburg Cove

Mill Meadows

Tisdale Brook

Tiffany Brook

Roaring Brook

Hammock River

Gatchen Creek

Fishing Brook

Turnpike Pond

Old Rock Pond

Keyboard Pond

Jennings Pond

Ivoryton Pond

Griswold Pond

Dennison Pond

Comstock Pond

Chapmans Pond

Burdicks Brook

Upper Millpond

Ward Brook Dam

Schreeder Pond

Post Hill Pond

Middlesex Pond

Cranberry Pond

Birch Millpond

Clinton Harbor

Salt Works BayPlum Bank Creek

Patchogue River

Eightmile River

Falls Brook Dam

Tower Hill Lake

State Shad Pond

Springdale Pond

Pratt Reed Pond

Bushy Hill Pond

Viney Hill Brook

Spring Lot Brook

Stevenstown Pond

Murray Pond No 3

Murray Pond No 2

Murray Pond No 1

Ingham Hill Pond

Falls River Pond

Westbrook Harbor

Ragged Rock Creek

Pond Meadow Brook

Hammonasset River

Connecticut River

Cold Spring Brook

Upper Ingham Pond

Pequot Swamp Pond

Lyons Meadow Pond

Lower Ingham Pond

Chalkers Millpond

Duck Island Roads

Indiantown Harbor

Pattaconk Dam No 3

Pattaconk Dam No 2

Pattaconk Dam No 4

Messerschmidt Pond

Dennison Road Pond

Menunketesuck River

Roads End Farm Pond

Roast Meat Hill Pond

Pratt Read Reservoir

Kelseytown Reservoir

Green Hill Road Brook

Obed Heights Reservoir

Killingworth Reservoir

ChesterAirport

Baldwin Bridge

Essex Elementary

Kathleen E Goodwin

Morgan High School

Old Saybrook Sr High

Westbrook High School

Deep River Elementary

Abraham Pierson School

Killingworth Elementary

Westbrook Middle School

Jared Eliot Middle School

Chester Elementary School

Haddam-Killingworth Middle

Old Saybrook Middle School

John Winthrop Middle School

Valley Regional High School

Lewin G Joel Elementary School

Daisy Ingraham Elementary School

Clinton Station

Westbrook Station

Old Saybrook Station

US Hwy 1

Route 148

State Hwy 9

Main St

Route 156

State Hwy 145

State Hwy 148

State Hwy 80

Boston

Post Rd

Route 1

Governor John Davis Lodge Tpke

State Hwy 81

State Hwy 156

Cow Hill Rd

State H

wy 153

Route 154

Hamburg Rd

Neck Rd

Route 1

Middlesex Tpke

Elm St

Route 80

Bokum Rd

Nod Rd

Clinton Rd

Meadow

t Hill R

Hill R

Pea Hill Rd

Toby Hill Rd

Durham Rd

River Rd

Green H

ill Rd

Joshuatown Rd

Reservoir Rd

Killingworth Tpke

Saybrook Rd

Chester Rd

Old Clinton Rd

Ironworks Rd

Cedar Swamp Rd

Airlin

School House Rd

Pine Orchard Rd

Pine Ledge Rd

Bushy Hill Rd

Stevenstown Rd

Branford Rd

Hill R

Book Hill Rd

Union St

Liberty St

Hoop Po

le Hill R

rook R

Schnoor Rd

Glenwood Rd

Elys Ferry Rd

Shore Rd

Essex St

Horse Pond Rd

Chitte

Old Post Rd

New Rd

Beckwith Rd

Schubert Rd

Duck Hole Rd

Dogwood Knls

Warsaw St

Pratt Rd

Iron Works Rd

Plains R

Hill R

River St

Parker Hill Rd

Cedar Lake Rd

Scotland Rd

Straits Rd

Iona R

State Hwy 166

Buck Rd

Kelsey Hill Rd

Spring St

Halls Rd

Hammonasset Connector Hull RdSpruce Ledge Rd

Deep River Rd

Spencer Hill Rd

Old Nod Rd

Seaside Ave

High S

Madison

Fox Hill Rd

Tooley Rd

Maple St

Fairy Dell Rd

Walnut St

Book Hill Ln

Kelseytown Rd

estbro

PD Hill Rd

Grove St

Grove Beach Rd

Mares Hill Rd

Elys F

erry R

Carter Hill Rd

Lovers Ln

State Forest Rd

Chittenden Hill Rd

h Park

Fairview Rd

Ben Merrill Rd

ntic T

Hammock

Lord Hill Ln

Hill Rd

West Ave

Bishop Ln

Flat Rock Pl

Cross Rd

Oyster R

iver Rd

Valley Rd

Stevens Rd

Kirtland S

Pond Hill Rd

Mill R

Coult Ln

Brickyard Rd

Lynde St

Cottage Rd

Keeny Rd

Tower Hill Rd

Plum Bank Rd

Dennison Rd

Riverside Dr

Mitchel Ter

Cedar Rd

Ferry Rd

Hemlock Dr

Butter Jones Rd

Pettip

Laurel R

idge Trl

Pratt Ave

Egypt Ln

Nod Pl

Ayres Point Rd

Otter Cove Dr

Cream Pot Rd

Olde Orchard Rd

Melody Ln

Rattling Valley Rd

erce S

Cold Spring Rd

Elsie Ln

Osprey Cmns

Bill Hill Rd

Vienna Ln

Connolly Dr

Deer Ln

Tinker

Christina Ct

Flintlock Rd

Sterling City Rd

Spencer Plains Rd

e Church St

Meadow Woods Rd

Firetower Rd

Spencer Hl

James Vincent Dr

Titus C

oan Rd

Brush Hill Rd

Uncas Rd

Fiske Ln

Fox Hill Dr

Willar

Bochim Rd

Malabar Dr

Silver Birch Ln

Coulter St

Mill Rock Rd

Groveway

ell Hil

Old Boston Post Rd

Acorn Rd

Dibble RdArk Rd

Middlesex Ave

Fish Plain Rd

Beech Tree Rdg

Springbrook Rd

Wig Hill Rd

Old Rd

Binney Rd

Magna Ln

Broadway

Hickory Ln

Boone Cir

Ragged Rock

Mal-A-Bar Dr

Old Mail Trl

Witch Hazel Dr

Pleasant Valley Rd

Spencer Plain RdOak Dr

Wolf Hollow Ln

Wildcat Rd

Winds Dr

Pepperbush Dr

Sequassen Ave

Pine Knls

Hemlock Ter

Signal Hill Rd

Maple Ave

Stanto

Obed Hts

side L

Kenilworth Dr

Fawn Hill Rd

Pratt St

Linden Ave

1st St

Circle

Birch Mill Trl

Willow Ln

Grove T

erPark

RdRobin Ln

Wesley Ave

Ken Rose Ter

Carol Dr

Granite Hill Rd

Old Mine Rd

Boulder Trl

Lords Ln

Salt Island Rd

Foxboro

Brockw

rry Rd

Michael Dr

Patrick Dr

Fenwood Dr

Gates Rd

Colonial Dr

Laurel Rd

Carriage Dr

Center Rd

Summitt St

Hammonasset State Park

Agawam Ave

West Rd

Cinnamon Rdg

Harbor Pkwy

Farm Ln

Wrights Pond Rd

John S

Stanwoll Hill Rd

Hurd Bridge Rd

Farview Ave

Seaview Ave

Knollwood Dr

Timberlane Dr

Buell Hill Rd

Kings Ln

Brooks Ln

Chapman Mill Pond Rd

Barley Hill Rd

Champlin Rd

Hillsid

Cromwell Pl

Barn Rd

Service Road

Falls R

iver D

South Main St

Pettipaug Ave

Pinnacle Ln

Hill St

Homestead Dr

5 Field Rd

Old Salt Works Rd

Pleasant St

Hilldale Trl

Bridlepath Trl

Trolle

y Xing

Hartfo

arch P

Pepperidge Trl

Hill D

Caughlin Rd

Lookout Hill Rd

Hills Rd

Otis St

Waldron Dr

Anthony Ln

Pine Lake Rd

Pine Knoll Dr

Timber Ln

Doane Rd

Pilgrims Lndg

Blake St

Plymout

George Dr

Whitewood Rd

Birch Mill Rd

Main St NO 1

Ridge Dr

Eagle Ridge Dr

Post Ave

Comstock Ave

Stone Hedge Rd

Evergre

Read St

Causeway

Quarry St

Green Acres Rd

Purita

Kingfisher Ln

Mohican Rd

Kings Grant Rd

4th Ave

Beekman Pl

Oak Ridge Dr

Mill Farms Rd

Indian Dr

Diamond

Bluff Ave

Hammonasset Pt

Pequot Park Rd

Lobb Ln

Maplewood Dr

River Ln

Pritchett Dr

ter Po

Railroad Ave

King St

Hillside Ter

Blaine Ave

Earl St

Windsor Ct

Birch Ln

Great Meadow Rd

For Glen Rd

Partridge Ln

Blueberry Hill Reserve

Laurel

Harvey Dr

Watrou

Kitteridge Hill Rd

Sunrise

East Rd

Highland Dr

Cedar Island AveMiddle Beach Rd

Jacob Ln

1st Ave

Carriage Ln

Ely Ln

Break Neck Hill Rd

Bright Hill Dr

Merrill Rd

Nod LnWalnut Hill Rd

Park Side Dr

Scenic View Dr

tone R

Dudley Ave

Highland Ter

Davies Cir

Pointina Rd

Cow Pen Hill Rd

Edwards Rd

Riverview Ave

Houperts Way

Windsor Ln

Boulder Dr

Bellaire Dr

Maple Hl

Donald Rd

Sunset Ave

p Ledg

Laurel St

Lynne Rd

Forest Hills Dr

Meadow Lark Ln

Beach Rd

Old Kelsey Point Rd

Nutmeg Dr

Swan Lake Trl

Five Fields Rd

Lafata Ln

Ridge Rd

Woods Ln

Cedar Dr

Fawn Trl

Victoria Ln

Neptune Ave

Windy Hill Rd

Vincent Ct

Old Dobbin Ln

Woodland Rd

Dogwood Dr

Clinton Ave

Navy Ln

Huntley Rd

Riverview Rd

Pent Rd

Janes Ln

Johnso

n Pond

Cricket Ct

Mallar

Sylvan Ter

Shepard St

Jenifer Ln

rest R

Blake Ave

Barnes Rd

Pinewood Trl

y Hill D

Saye St

Edgewood Dr

Cedar St

Longate Rd

Fordham Trl

Crose R

Lower Rd

Stanford Hill Rd

Hillto

Winthrop Hill Rd

Indian

Settlers Ln

Meadowood Ln

4th Ave

Mulberry St

Park Dr

Bellstone Ave

Quarry Hill R

Margo Ln

Monk Rd

Acorn Dr

Dump Rd

Cove St

Forest Glen Rd

Rackett Ln

Chord Ln

Currycross Rd

Deer Ridge Rd

Brenda Ln

Rebecca Ln

Hillcrest Dr

Hudson Ln

Town Park

Davis Farm Rd

Founders Rd

Linnea Ln

Heritage Cir

Clarkson Ln

Half Penny Ln

Whittlesey Brook Rd

Gilbert Hill Rd

Denmore Ln

Nott L

ot Trl

Deer Run Rd

Glen G

rove R

Spring Hl

Littlefield Ln

Wood Pond Ln

Riverview St

Green Meadow Dr

Alden Dr

Old Bridge Rd

Vista Ter

Wilson Ave

Ellen Ln

Ortner Dr

Summerfield Rd

Lochbo

urne D

Allen St

Orchard Path

Industrial Park Rd

Oakledge Dr

Mohican Ave

Sherman St

Townwoods Rd

Bluff St

Christina Ln

Lake Laconia Dr

Walkley Ml

Hazen St

Saddlebrook Dr

Hopper Rd

Evans LnEver

ett Ln

Lookout Hl

Christ

orge R

White Oak Dr

Waterbury Ave

Elmwood Way

Marian Ln

Christ Hts

Oakwood Ln

Chatfield Ridge Rd

Lord Pl

Mallard Dr

Bushnell St

Cliff Dr

ant Hi

Ripley

Hill R

Maple Leaf Dr

Banbury Xing

St Johns School

Nod Ct

Oak Hill Dr

Windermere Way

Meadow Point Rd

Reed Ct

Wilshire Rd

Fairfi

Taylor Ridge Rd

Hilltop Dr

Field Brook Rd

Laurel Way

Rachel Ln

Conklin Ave

Esico Ln

Braina

Creamery

Bushnell Ln

Billows Rd

Willard St

Chester Vlg

Village Ln

Country Village Ln

Whittemore Pl

South Pkwy

Tudor Ct

Hemlock Hill Rd

Essex Plz

Stage Rd

Skytop Dr

Hunters Trl

Barret Ln

Tamarac Trl

Sunnybrook Ln

Trail's End

Edgewood Ave

Jorgensen Ln

Trolley

Liberty Ln

Belmont Ave

Laurel Wood Dr

Hunters Ridge DrNature Trl

Chesnut Cir

Highview Rd

Stanton Ct

Surrey Ridge Rd

Riverside Ave

rook R

Oakland Ave

Winterberry Cir

Dudley Ln

gren H

School Ln

Bower Rd

London Ct

Edinburgh Ln

Hunters Path

Lilac St

Central Ave

Horse Shoe Dr

Mitchell Ln

Marine Ave

Belaire Mnr

Benson Ln

PD Lily Rd

Rosemary Ln

Dana Dr

orne W

South Incarnation Rd

Alex Dr

Salt Marsh Pt

Captain

Cypress Rd

Tower Hill Lake Rd

North St

Martin D

Kingsbridge Way

Hill W

Loop Rd

Roberts Rd

River Ave

Dudley Towne RdFolkstone Ct

Princess Pine Ln

Oakridge Dr

Van Dyke Ln

Pallenberg Dr

Fenwick St

Long Hill Road Ext

Striper Ave

Maple Ct

Bitters

weet Ln

Sandy Brook Rd

Fox Run Rd

Mels Rd

Cambridge Ct

Oscela Trl

Gilbert Rd

Stokes Ave

Kristen Way

Minnow Ln Lighth

Library Ln

Jade Ct

Jakobs Lndg

Pine O

rchard

Osprey Rd

Gorham Rd

Pine Pl

Windsor Oval

Sterling Dr

Nutmeg

Antonie Rd

Clover

Rosenblad Dr

Sussex Pl

Patchogue Pl

Town Clerk Ln

Plantin

g Field

Sleu R

Newell Ter

Freeman Ave

Pine St

Brookside Ln

5th St

Huckleberry Dr

Dowd Rd

e Hill R

Golf Links Rd

Fencove Ct

Chelsea

Hagar St

Schoolhouse Ln

Spinnaker Ln

Hemlock Cir

iew Te

Fox Ln

Todds Mill Cir

Oak St

Bundy Hl

Squire Ln

Plymouth Ct

Mitchel Cir

Woodcock Ln

Apple Way

Main St

r Hill R

Kelseytown Rd

Westbro

Main St

Pond Meadow Rd

ill Dr

Uncas Rd

Acorn Dr

Pratt Ave

Dennison Rd

Hemlock Ter

Winthrop Rd

Main St

Parker Hill Rd

Old Po

Liberty St

Governor John Davis Lodge Tpke

Deep River Rd

Spring St

Boston Post Rd

US Hwy 1

Ferry Rd

Fox Hill Rd

Main St

Cross Rd

Route 1

Main St

Mill R

High St

Route 145

Mill R

Cove Rd

US Hwy 1

Ingham Hill Rd

Wig Hill Rd

Hemlock Dr

High S

Kenilworth Dr

Main St

Cove Rd

Ferry Rd

Plains Rd

Essex Rd

River Rd

Elm St

Hammonasset Connector

Brockway

Ferry R

Maple Ave

Oak Ridge Dr

Mill Rd

Ingham Hill Rd

Reservoir Rd

Hammock Rd

Cedar Lake Rd

Colonial Dr

Robin Ln

Mill Rock Rd

Grove St

Bokum Rd

Middlesex Tpke

Hemlock Dr

High S

River St

Reservoir Rd

Bridge St

State Hwy 9 Winthrop Rd

Maple Ave

Long Hill Rd

Exit 5

Exit 6

Exit 2

Exit 3

Exit 62

Exit 64

Exit 67

Exit 4

Exit 66

Exit 63

Exit 70

Exit 69

Exit 65

Exit 68

Exit 65

Exit 2

Exit 62

Exit 5

Exit 67

Exit 66

Exit 64

Exit 69

Exit 6

Exit 3

§̈¦95§̈¦95

MAP LOCATION

WestbrookWestbrook

W ATER Q UALITY CLAS S IFICATIONSW ES TBR OOK, 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

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.

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