A B W ATER QU L IY C SF ON A ANDOVER,...

transcript

CO V EN T R Y

H EB R O N

CO LU M BIA

BO LT O N

A N D O V E R

M A N S FIELD

LEBA N O N

V E R N O N

G LA S T O N BU R Y

M A R LBO R O U G H

M A N CH E S T E R

T O LLA N D

W IN D H A M

EA S T H A M P T O N

Eagleville

Lydallville

Liberty Hill

Talcottville

Highland Park

North Coventry

Mansfield Depot

Manchester Green

Mansfield Four Corners

Box Hill

Post Hill

Mack Hill

Ball Hill

Green Hill

Grant Hill

Utley Hill

Burnt Hill

Cooks Hill

Clarks Hill

Fuller Hill

Bunker Hill

Whites Hill

Burrows Hill

Frankel Hill

Monument Hill

Chestnut Hill

John Tom Hill

Riley Mountain

Birch Mountain

New Boston Hill

Kongscut Mountain

Lord Dam

May Pond

Lee Brook

Hop River

Dam Brook

Ash Brook

Swan Lake

Star Pond

Mono Pond

Case Pond

Reed Brook

Post Brook

Mint Brook

Mill Brook

Flat Brook

Fawn Brook

Woods Pond

White Pond

Gasper Dam

Roman Pond

Reeds Pond

Jones Pond

Horse Pond

Celio Pond

Daly Swamp

Bear Swamp

Rufus Brook

Macht Brook

Kings Brook

Green Brook

Baker Brook

Whites Pond

Warner Pond

Phoenix Dam

Tinker Pond

Szegda Pond

Stiles Pond

Sperry Pond

Palmer Pond

Mirror Lake

Little Pond

Lennon Pond

Laking Pond

Hubner Pond

Holman Pond

Graves Pond

Dunham Pond

Bestor Pond

Albasi Lake

Wilson Brook

Tucker Brook

Theims Brook

Porter Brook

Olsons Brook

Nelson Brook

French Brook

Clarks BrookCheney Brook

Burnap Brook

Peterson Dam

Tri Pipe Dam

Salters PondPoucell Pond

Pagachs Pond

Landons Pond

Johnson PondJohnson Pond

Golfers Pond

Glasser Pond

Diamond Lake

Andover Lake

Ackerly Pond

Bishop Swamp

Merrow Swamp

Warner Swamp

Tenmile River

Hemlock Brook

Daniels Brook

Collins Brook

Williams Pond

Upenieks Pond

Triangle Pond

Robinson Pond

Holbrook Pond

Greens W Pond

Greens S Pond

Gay City Pond

Columbia Lake

Thornton Brook

Straddle Brook

Railroad Brook

Giffords Brook

Coventry Brook

Strombery Pond

Gilmartin Pond

Gambolati Pond

Clubhouse Pond

Affricano Pond

Massinger Brook

Dickinson Creek

Blackmans Brook

Wangumbaug Lake

Upper Foot Pond

Butterfield Dam

Simon Hunt Pond

Girl Scout Pond

Eagleville Pond

Brousseous Pond

Skungamaug River

Cider Mill Brook

Brousseous Brook

Blackledge River

Bear Swamp Brook

West Street Pond

Paul Mathieu Dam

Lydall Brook Dam

Turkey Farm Pond

Swamp Brook Pond

Shoddy Mill Pond

Risley Reservoir

Lower Woods Pond

Lake Terramuggus

Howard Reservoir

Golf Course Pond

French Road Pond

Dobsonville Pond

Bolton Club Pond

Willimantic River

Hope Valley Brook

Dunham Pond Brook

Dark Hollow Brook

Cedar Swamp Brook

Bolton Pond Brook

Valley Falls Pond

Training Dam No 1

Training Dam No 2

Tankerhoosen Lake

Talcottville Pond

Foot Sawmill Pond

Chapman Road Pond

Bolton Notch Pond

Upper Bolton Lake

Lower Bolton Lake

Tillinghasts Brook

Foot Sawmill Brook

Middle Bolton Lake

Spinning Mill Brook

Mitterholtzer Brook

Columbia Lake Brook

Wellesway Club Pond

Perkins Corner Pond

Brigham Tavern Brook

Birch Mountain Brook

Blackledge River Dam

River Road Pond No 2River Road Pond No 1

Plum Paper Mill Pond

Foote Hill Farm Pond

Buckingham Reservoir

Eagleville Pond Brook

Hope Valley Road Pond

West Branch Fawn Brook

Burrows Hill Road Pond

Cases Machine Shop Pond

Upper Columbia Lake Brook

Upper Colchester Road Pond

Lower Colchester Road Pond

Sterling Fibre Board Co Pond

Lydall Street Reservoir No 2Lydall Street Reservoir No 1

Upper Storrs Pumping Station Pond

Lower Storrs Pumping Station PondHeckler FieldAirport

Rham High School

Hebron Elementary

Bolton High School

Gilead Hill School

Andover Elementary

Rham Middle School

Lake Street School

Coventry High School

Bolton Center School

Annie E Vinton School

Horace W Porter School

Coventry Grammar School

Buckley Elementary School

Highland Park Elementary School

Dorothy Goodwin Elementary School

Captain Nathan Hale Middle School

George H Robertson Intermediate School

University of Connecticut

Route 6

US Hwy 6

Willimantic Rd

US Hwy 44

Boston Tpke

State H

Stafford Rd

State Hwy 31

East St

Gilead St

Route 87

State Hwy 32

State Hwy 87

Jonathan Trumbull Hwy

Wall St

Hartfo

rd Pro

videnc

e Tpke

Pine St

State Hwy 316

South St

Middleto

West St

West Rd

North St

Route 6

Middle T

Lake St

Hebron Ave

State Hwy 94

Tabacc

Tobacc

Hebron Rd

State Hwy 275

Jones Hollow Rd

Martin Rd

State Hwy 2

Silver St

Bunker Hill Rd

Lake R

Church St

Trumball Hwy

Storrs Rd

Hunt Rd

Pucker St

Merrow Rd

Bolton Rd

Hopriver Rd

Oliver Rd

Cook Hill R

Boston Hill Rd

River Rd

Grant Hill Rd

Flanders Rd

Main St

Swamp Rd

Eaglevil

Old Slocum Rd

Cone Rd

Brandy St

New Boston Rd

Dunn Rd

Hill R

Parker Rd

Skinner Ln

Baltic Rd

Notch Rd

Bolton Center Rd

Hop River Rd

Route 30

Erdoni Rd

South Rd

Burnt Hill Rd

Shoddy Mill Rd

Leonard Bridge Rd

Gardner St

High St

Porter St

Cedar Swamp Rd

Old Willimantic Rd

Exeter Rd

Hillside Rd

Forest St

Brewster St

Campmeeting Rd

Broad Way

Clubho

use Rd

Spring St

Johnson Rd

Hendee Rd

Bread and Milk St

Forest Rd

Boston Way

Tunnel Rd

Jagger Ln

Wales Rd

Fern St

Root Rd

State Hwy 195

Mill Stream Rd

Goose Ln

Bear Swamp Rd

Taylor St

Trumbull Hwy

Lydall St

Finley St

VL Falls Rd

Clarke Rd

Highland St

School Rd

Hartford Tpke

Bonemill Rd

Wrights Mill Rd

Lebanon Rd

Wellswood Rd

Nathan Hale Rd

Stonehouse Rd

Jurovaty RdDaly Rd

Hatch Hill Rd

Wheeling Rd

Phoenix St

State Hwy 534

Park Rd

Babcock Hill Rd

Bone Mill Rd

Carter St

Gaulin Rd

Szegda Rd

Porter Rd

Echo Dr

Macht Rd

Doubleday R

Mill R

Coventry Rd

London Rd

Fern RdLoomis Rd

Wilbur Cross Hwy

Clark Rd

Hennequin Rd

Carpenter Rd

Plains

Jones Rd

Portland Rd

Valley Falls Rd

Mansfield City Rd

n Notc

Cross S

Scott Dr

Wells Wood Rd

Hall Rd

Browns Rd

Old Eagleville Rd

Farms Rd

r Bridg

Hunting Lodge Rd

Charles Ln

Airline Trl

Riley Mountain Rd

Flanders River Rd

Kinney Rd

Garth Rd

Separatist Rd

Seagraves Rd

Ferguson Rd

Love Ln

Diamond Lake Rd

Warren Ave

Brigham Tavern Rd

Risley Rd

Lewis Hill Rd

Mark Dr

Skinner Hill Rd

Townsend Rd

Bascom Rd

Baxter Rd

Isleib Rd

Islieb Rd

Cooper Ln

Ravine Rd

Elm Hill Rd

Windham Rd

Judd R

Dunigham Town Rd

Ash Swamp Rd

tt Hill R

Stearns Rd

Lakeside Dr

Paper Mill Rd

Maple Rd

Stage Harbor Rd

Slocum Rd

Ripley H

ill Rd

Hutchinson Rd

Richmond Rd

Basket Shop Rd

Edstrom Rd

Moulton Rd

Tinker Pond Rd

Laurel

Lyman Rd

Box Mountain Dr

Tenmile Riv

Meeting House Rd

Satari Dr

Depot Rd

Sam Green R

Eastvie

Cones Rd

Brian Dr

Street Ext

Vernon Rd

Loveland Rd

Ludlow Rd

Hodge RdSton

e House Rd

Higgins Hwy

Box Mountain Rd

Joel Dr

Horizon Ln

Finley Hill Rd

Scarboro Rd

Szedga

Road NO 1

Watrous Rd

Wyllys St

Imperial Dr

rove S

Old Tolland Tpke

Country Ln

Mountain Rd

Eline Ave

Zeya Dr

Montauk Dr

Dennison Rdg

Hardy Rd

Cherry Valley Rd

Villa Louisa Rd

Oakwood Ln

Echo Rd

Old Turnpike Rd

Hunting Lodge Road NO 1

Hill St

Edgerton RdEdgarton Rd

Stadium Rd

Cidermill Rd

Timrod

Pitkin St

Wyllys Rd

Jan Dr

Brigham Rd

y Slop

Brent Dr

Old Coventry Rd

Pine Lake DrStony

Old Ando

ver Rd

Hillyndale Rd

Woodland Rd

lton D

Eric Dr

Brook Xing

Geraldine Dr

ral Rd

Majorie Cir

Birch St

Spring Mnr

Hickory Dr

Chesbro Bridge Rd

Avery Shrs

Greenwood Dr

Heritage Rd

slopes

Oak Dr

Merritt Valley Rd

Kent Dr

Maple D

Windrush Ln

Burnham Rd

ter Ln

Fox Trl

Highla

Bobby Ln

Old Oak Trl

Burnap

Brook R

Woodbridge Rd

Buckboard Ln

Whitney St

Toomey Ln

Alumni Dr

Blish Rd

Kelly Rd

Whites Hill Rd

Birch Rd

Bailey Rd

Goodale Hill Rd

Thornbush Rd

Mount S

Lori Rd

Toomey Rd

Old Oak Ter

Technology Pkwy

Candide Ln

Reynolds Dr

Stonybrook Dr

Brendi Trl

Latham

Hill Rd

Bishop Ln

New Bolton Rd

Stanley Dr

Lucks Way

Village Hill Rd

Jenny Clfs

Forge Rd

Trowbridge Rd

Fox Rdg

Boulder Rd

Rocco Rd

rnut L

Juniper

Colonial Rd

Indian Field Rd

Lake Shore Dr

Jennife

Hannah Ln

Garth Ln

Edgemere Rd

Fiano Rd

Planeta Rd

Myrna Dr

Dilaj Dr

Blue Ridge Dr

Elizabeth Dr

Olde Hall RdFoote Ln

Dale Rd

Colonial Dr

Willimantic Tpke

Hemlock Point Dr

Lakeview Dr

Diane Dr

Amanda Dr

Slocum Road NO 2

Hublard Dr

Carver Ln

Welles Rd

Valerie Dr

Ireland Dr

Alexis Dr

James Ln

Synagogue Rd

Lake Williams Dr

Blue Hills Trl

Bailey St

Willia

Zola Rd

Russmar Trl

Brighton Rd

Stream

Linda Ln

Bausola Rd

Silo Rd

Carol Dr

Hansen Dr

Chestnut Hill Rd

Grandview St

ill Rd

Old Farms Rd

Birch Bend Rd

Arnott Rd

Abby Dr

Paden Rd

Progress Dr

Scalise Dr

Eldrid

Deer Run Trl

Fox Run

Rivendell Rd

Springdale Rd

Highlan

Strevor Dr

Richmond Dr

Tamarac Dr

Timber Trl

Indian Dr

Adelaide Rd

Woodlawn Dr

Amherst Dr

Walnut Dr

Bentley Dr

Haystack Rd

Antrim Rd

ill Rd

Sunrise

Ball Hill Rd

Chatham Dr

Carolyn Dr

Birch Dr

a Spri

Steel Crossing

Bellvue Dr

School House Rd

Sean Cir

Robinson Rd

Mack Rd

Ross Ave

Hinkel Ave

Lake Ridge Dr

Brookfield Dr

Stony Brook Dr

Kingsley Dr

Washington St

Butternut Rd

Conway Rd

Miller Rd

Gilbert R

Campbell Ave

Dogwood Dr

Grady Rd

Lamotte Dr

Prentice Hill Rd

Glenbroo

Spring Rd

Northwood Rd

Hilltop Dr

Horse Barn Hill Rd

Line St

Leslie Ln

Deer Run

Settlement Rd

Standish Rd

Shadblow Ln

Pine Ridge Dr

Randazzo R

Rosewood Ln

Rabbit Trl

Appian WayLynwood Dr

Brown Rd

Laura Dr

Shepard Dr

Bouldercrest Ln

Cheney Ln

Hill R

Jeff Rd

Avalon Ln

Clover Ln

Skinne

Castle Hl

Yorkshire Dr

Susan Ln

Cheney RdBette Dr

Willow Dr

Cornwall Dr

Overlook Dr

Windswept Way

Birch Mountain Road Ext

Elsie Dr

Spring Street Ext

Anthony Rd

Milford Rd

Tower Ct

Converse Rd

Woodbridge St

Denler Dr

Joshua Ln

Knollwood Rd

Carriage Dr

Weaver Rd

Old Colch

ester Rd

Sass Dr

Westgate Rd Wickford Rd

Mai Rd

bridge

Brennan Rd

Dimock Ln

Joyce Ln

Lakewood Dr

Lawton Rd

Eliot Dr

Tracy Dr

Danny Trl

Cider Mill Rd

Sentinal Woods

Arcellia Dr

Ash Brook Dr

Fernwood Dr

Twin Hills Dr

Wildwood Dr

Kristen Ln

re Trl

Castlerock Ln

Bissell Rd

Russell Dr Lanc

Mayflower Dr

roft R

Alice Dr

Patriot Ln

try Cl

David Dr

Marion Dr

Salt Box Rd

Riverview Cir

Jude Ln

Walters Rd

Skyview Dr

Upton Dr

Rockledge Dr

Riga Ln

Susan Rd

Willow Glen Dr

Barbara Dr

Stonewall Ln

Green Manor Rd

Cedar Ridge Dr

Knollw

ood Dr

Riverside Dr

ill Roa

Hinkel Mae Dr

Tunxis Trl

ttville

Collins Rd

Coates Farm Rd

Hebron Ldg

Murphy Rd

Robert Rd

Bretton Rd

Hills L

Llynwood Dr

Ahern Ln

uth Ln

Woodward Rd

idge R

Richard Rd

Warren Cir

Hatfield Rd

Sycamore Trl

Hidden

Farmstead Rd

ler Rd

Brighton Ln

Meadow Rd

Rd Bra

dbury L

Baker Hill Rd

Pickford Dr

Kongscut Valley Trl

Hickory Ln

Plaza Dr

Beaver Trl

Howard Rd

Euclid Ln

Columbia Lndg

Flag D

Stage Rd

Crysta

Springside Trl

Driggs Rd

Fairview Run

Adelma Dr

Cone St

Tedford Dr

Oak Farms Rd

Hillcrest Rd

Lathrop Dr

Deborah Dr

Maplewood Rd

Romano Rd

Virgin

ia Rail

Bolton

Coburn Rd

Highwood Dr

Sheffield Dr

ois Tr

Lower Woodland Ter

Noor Dr

Cornell Rd

Haylin Dr

Oak Trl

Brookside Ln

Center St

Sleepy Hollow Rd

Maryanne Dr

Vernon Branch Rd

Bears Den Way

Strickland Rd

Ridge Cir

Hillsid

Gristm

ill Rd

Sunset Ln

Hanover Farms Rd

Rose Ln

McDivitt Dr

Lenti Dr

Lakeshore Dr

Timber Ln

Morin Ave

Forest View Ln

Old Bolton Rd

Mill Landing Rd

Golf Rd

Karlswood Rd

Fuller Rd

Silver Fls

Nathan Hale Dr

Allen Rd

Ledoyt RdPinewood Dr

Storey Ave

Barry Rd

Mill Race Rd

Karen Cir

Woods L

High Meadow Ln

Miller Farm Rd

Esquire Dr

Kathy Cir

elix D

Laurwood Dr

ll Ridg

Mohawk Trl

Blackledge Dr

Carria

Oviatt S

Celeron Sq

Well Trl

Hilltop Ln

Richardson Dr

Margare

Midland Rd

Tumblebrook Dr

Daria Dr

Ironwood Dr

Beacon H

ill Dr

Neville St

Frederick Rd

Rosewood Dr

Herbert Dr

Old Colony R

Lakeview Park

Island St

Meadowood Rd

Penny Ln

Stonecroft Ln

Amy Dr

Deer Hill Ln

Clavet Pl

Quail Run Rd

Bayberry Ln

Wood Fern Way

Stagecoach Rd

Notch Road Ext

Pendleton Dr

Heather Ln

Newberry Rd

Berry Ave

Foxcro

ft Trl

Tanglewood Ln

Fieldstone Dr

Coleman Rd

Goodwin Rd

Keeney Dr

College Park

Steele Farm

Walters Ave

Lindholms Cor

Cubles Rd

urne W

John Paul Ln

Chesterbrook Ln

aty Ln

Woodstock Dr

Liberty Dr

Phyllis Ln

Mark Anthony Rd

Hemlock Ln

Hayfield Ln

Loomis Dr

Auditorium Rd

Meadow Trl

Morancy Rd

Lady Bug Ln

Trevor Ct

Villag

Gilead Ldg

Sharon Dr

Tam Rd

Monument Hill Rd

Beach Rd

Hearths

tone D

Hickory Ct

Ayers Rd

Bishop Dr

Tunnel View Ter

Cubles Dr

Old Mill Ct

Coleman Ln

Barbers

Cider Mill Ln

Pine Ridge Rd

Carver Ln

Highla

Deer Run

Highland Dr

Johnson Rd

Knollwood Dr

Oak Dr

Wall St

School Rd

State Hwy 2

Middle Tpke

Daly R

Main St

Laurel Ln

Scott Dr

Shady Ln

Plains

Echo Dr

Eagleville Rd

Shore Dr

School Rd

Laurel Ln

Hebron Ldg

Ridge Rd

Carpenter Rd

Ridge Rd

Hebron Rd

Shady Ln

River Rd

Cedar Swamp Rd

John Paul Ln

Robinson Rd

Oak Dr

Fern St

Whitney Rd

West St

Walnut

Blue Ridge Dr

Main St

Carter St

Deer Run

Cider Mill Rd

Birch Mountain Rd

Riverside Dr

Hebron Rd

Jagger Ln

Reed Rd

Lake Rd

Coventry Rd

Ridge Rd

Kinney Rd

Lydall St

Carpenter Rd

South St

Depot Rd

Sharin

gton D

Lake Rd

Exit 4

Exit 5

Exit 12

Exit 65

Exit 13

Exit 64

Exit 4

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MAP LOCATION

AndoverAndover

W ATER Q UALITY CLAS S IFICATIONSANDOV ER , 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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