WATER QUALITY CLASSIFICATIONS STONINGTON, CT

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Esker Point Beach
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Bank St
Brook St
Williams St
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Beebe Cove
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Commerce
Ct
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Shunock River
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Mystic Ave
SA
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Map is not colorfast
Protect from light and moisture
Mumford Point
n
Ally
November 2015
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Cl
Ct
Map created by CT DEEP
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STATE OF CONNECTICUT
DEPARTMENT OF
ENERGY & ENVIRONMENTAL PROTECTION
79 Elm Street
Hartford, CT 06106-5127
Venetian Harbor
Clift St
High L
Burrows St
t
Haley Cres
Rd
y
n
Palmer Cove
Colo
Cr
os
s
d
Copps Brook
Coogan Blv
d
Hinckley St
Rossie St
Bruggeman Pl
Starr St
y St
Godfre
S
Heath
SCALE 1:24,000 (1 inch = 2000 feet) when map is printed at original size
oad
ss Rd
Bindlo
Front St
1 Kilometers
ce R
SB
SB Butler Elementary School
t
7000 Feet
vi
Ser
Exit 90
Bindloss Pond
t
Conrad S
Little
Gib
Mic
hel
le
Mystic Oral School Pond
Exit 89
Overlook Ave
Old Evarts Ln
Beebe Pond
Dr
d
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Ya
Dr
S
pect
Pros
6000
Rd
Cindy Ln
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Dr
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Mumford Cove
SA
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5000
Ln
Crosswinds
Mohega
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B
SD
0
4000
n
Gle
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Ln
ton
Gro
SA
Pacific St
Tautog St
0.5
3000
ath
He
n
!
e Rd
Sunris
N O R T H
Jeremy Hill
Quoketaug Hill
Mystic River
Le
dg
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n
West Mystic
Sand Pit Pond
Eccleston Brook
Ave
nd
Isla
2000
1 Miles
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State Plane Coordinate System of 1983, Zone 3526
Lambert Conformal Conic Projection
North American Datum of 1983
S
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hit
W
Cutler Middle School
Robert Fitch Senior High School
t
A
Pitcher Mountain Pond
Lewis Pond
Copps Brook Pond No 1
SB
Pequot Hill
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Little
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Rd
Old Colony Rd
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Riverbend Dr
Library St
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Leew
Dr
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New Lon
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Housatonic River, Hudson River and Southwest Coastal
Basins: March 1999
8
nR
Tow
e Dr
Bern Ct
ire Dr
Bel A
Ridgewood Dr
Ov
al
Flint
Hewitt Rd
Wheeler High School
O2
Smith St N
Haleys Way
rk
Ensign Dr
A
rly
o
!
Ave
B
Ba
Ct
Mi
dw
ay
Reutemann Rd
Ln Ripley Parks Pond
ery
Av
Old Tro
Wheeler Middle School
lley Ln
n
n
Norw
ic h R
North Stonington Elementary
d
n
Wychwood Field
Airport
Lampheres Brook
Brown Pond
n
Ta
a
Utic
Connecticut River and South Central Coastal Basins:
February 1993
3
4
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Qu
Ln
ood
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Do
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ing
Haley
Spr
id
Hills
ve
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res
Fo
North Rd
Fort Hill Ct
Pendleton Hill Brook
!
Stony Pond
Ann Ave
Rd
Fishtown Cemetery Pond
n
!
W
es
te
A
Route 184
Rd
frey
God
G R O T O N
Fort Hill
Silex Pond
B
Welles Rd
Billings Pond
Ella T Grasso Southeastern Technical High
Lau
ra
e St
Marjori
Red Brook
Packer Rd
Hibbs Pond
Dark Hollow
SA
6
Rd
Whitford Brook
r
ill D
Fishtown Brook
ADOPTED DATES
Pawcatuck
Southeast Coast
Thames
Connecticut
South Central Coast
Housatonic
Southwest Coast
Hudson
Co
mr
ie
Exit 89
Sandy H
ollow R
d
Islan
d Cir
1
2
3
4
5
6
7
8
r
t
Haleys Brook
Haley Rd
SA
D
and
Ex
7
d
n
!
In
du
str
l
High
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Ro
11
Route
R
Newtown
Claude Chester School
RELATED INFORMATION
This map is intended to be printed at its original dimensions in
order to maintain the 1:24,000 scale (1 inch = 2000 feet).
WATER QUALITY STANDARDS - Go to the CT DEEP website
for a summary and the full text of the “Water Quality Standards”
and for other information on water quality.
AQUIFER PROTECTION AREAS - Go to the CT DEEP website
for more information.
MAJOR BASINS
Gold Star Hwy
Smith Lake
Debby Dr
Corey Rd
No
rw
ic h
Hyde Pond
Oslo St
Fort Hill Brook
n
!
Gallup Hill
West Branch Red Brook
Rog
ers
Rd
I 95
BASE MAP DATA - Based on data originally from 1:24,000-scale
USGS 7.5 minute topographic quadrangle maps published between
1969 and 1992. It includes political boundaries, railroads, airports,
hydrography, geographic names and geographic places. Streets and
street names are from Tele Atlas® copyrighted data. Base map
information is neither current nor complete.
Thames River, Pawcatuck River and Southeast Coastal
Basins: December 1986
nt M
Pai
Ln
Haley Pond
A
ain Rd
Small Pond
Assekonk Brook
Whitfo
rd R
B
Rd
r
tte
Ye
Exit 88
Triangle Pond
A
Barbers Line Walk Pond
Poheganut Reservoir
d
d
n Dr
Stephe
Center Groton
North Road Pond
ill R
Whitford Pond
Tribrook Pond
Hatching House Brook
DATA SOURCES
MAP LOCATION
r Ln
Dee
ay
gton W
Huntin
Rd
Wi
nte
cho
gH
Rd
B
Rd
ck
o
l
nt
Fli
Rd
wood
Ct
Cran
York
n
ow
bt
n
rto
Ba
rF
ke
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u
Q
AA
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de D
n
!
We
nd
e ll
Dr
Lisa
Hazelnut Hill
Water Quality Standards
February 25, 2011
Rd
Edge Pond
AA
MAJOR DRAINAGE BASIN DATA – Major drainage basins
shown on this map are from Major Basin Line data developed by
CT DEEP and intended to be used at 1:24,000 scale.
Colonel Ledyard Hwy
m
La
Lambto
wn
Phillips Ave
Candlewood Rd
FINAL AQUIFER PROTECTION AREAS (Level A) are included
on the WQC maps for informational purposes. These areas are
anticipated to be reclassified GAA during the next major basin
updates, subject to public participation. The Aquifer Protection
Program helps protect Connecticut’s public drinking water
resources by delineating aquifer protection areas (also called
wellhead protection areas) for public supply wells and establishing
land use regulations within these areas. These areas represent the
land area contributing ground water to active public water supply
wells or well fields that serve more than 1000 people and are set in
sand and gravel aquifers (stratified drift deposits).
the individual water companies owning the well fields and
submitted to the CT DEEP for approval. Preliminary mapping
provides a general estimate of the area contributing ground water
to the well field. Final mapping is based on extensive, site-specific,
detailed modeling of the ground water flow system. CT DEEP may
adjust Final area boundaries to be consistent with 1:24,000 scale
topography and base map data where appropriate during the
approval process.
y
Erins Wa
Maple
Ter
m
ar
R
lley
Cheste
rM
Cemetery Pond
d
Ro
ad
A
Cider Hill
arm
Town F
Dr
it h
m
ks
ac
Bl rs Ln
e
27
Whip
ple
Larchmont Ter
On the WQC map GA is represented by white colored land areas.
Class GAA and class GAAs are represented by blue colored land
areas. The area of contribution to a public water supply well is
shown by a blue cross-hatch overprint. A notation of GAA
followed by a state abbreviation indicates a watershed that
contributes to the public water supply for a state other than
Connecticut. Class GA or Class GAA areas that currently may not
be meeting the GA or GAA standards are represented on the WQC
maps by tan colored land areas. Class GB is represented by green
colored land areas. Class GC is represented by magenta colored
land areas.
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GROUND WATERS in Connecticut are classified as GAA, GA,
GB and GC. Class GAA designated uses are existing or potential
public supply of water suitable for drinking without treatment and
baseflow for hydraulically-connected surface water bodies. The
Class GAAs is a subclass of GAA for ground water that is tributary
to a public water supply reservoir. The area of contribution to a
public water supply well is represented by a 500-foot radius around
the well and is assumed to be Class GAA unless otherwise
classified. Class GA designated uses are existing private and
potential public or private supplies of water suitable for drinking
without treatment and baseflow for hydraulically-connected
surface water bodies. All ground waters not specifically classified
are considered as Class GA. Class GB designated uses are
industrial process water and cooling waters and baseflow for
hydraulically-connected water bodies and is presumed not suitable
for human consumption without treatment. Class GC designated
uses are assimilation of discharges authorized by the
Commissioner pursuant to Section 22a-430 of the General Statutes.
AQUIFER PROTECTION AREA DATA – Aquifer Protection
Areas shown on this map are from the Aquifer Protection Area
digital dataset which contains polygon data intended to be used at
1:24,000 scale. The dataset contains regulated areas classified as
Level A Aquifer Protection Area (Final) and Level B Aquifer
Protection Area (Preliminary). The Level B areas are not shown on
the WQC maps. The data was collected from 1991 to the present
and is actively updated as Final area mapping replaces earlier
Preliminary areas. The Aquifer Protection Areas are delineated by
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On the WQC map a surface water quality goal of A is represented
by blue colored water bodies. Surface water quality goal of AA is
represented by purple colored water bodies. Surface water quality
goal of B is represented by gold colored water bodies.
WATER QUALITY CLASSIFICATIONS DATA – Water quality
classifications shown on this map are based on information from
the following digital spatial datasets that are typically shown
together – Ground Water Quality Classifications Poly, Surface
Water Quality Classifications Line, and Surface Water Quality
Classifications Poly. The map legend above reflects the content of
these three data sources. These WQC data were initially compiled
on 1:24,000-scale 7.5 minute USGS topographic quadrangle maps
and later digitized at 1:24,000 scale. For example, the Surface
Water Quality Classifications Line and Surface Water Quality
Classifications Poly digital data assigns surface water quality
classifications to water bodies such as rivers, streams, reservoirs,
lakes, ponds and coves found in 1:24,000-scale hydrography data
available from CT DEEP. The hydrography may not include all the
waterbodies in Connecticut. The Ground Water Quality
Classifications Poly data assigns ground water quality
classifications, at 1:24,000 scale, to the remaining land areas in
Connecticut.
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Surface waters which are not specifically classified shall be
considered as Class A or Class AA. Surface waters in GA ground
water areas are assumed Class A or Class SA unless otherwise
indicated. Surface waters in GAA ground water areas are assumed
Class AA unless otherwise indicated.
SURFACE WATERS in Connecticut are divided into freshwater
classified as AA, A, B or B* and saline waters classified as SA or
SB. Class AA designated uses are existing or proposed drinking
water supplies; habitat for fish and other aquatic life and wildlife;
recreation; and water supply for industry and agriculture. Class A
designated uses are habitat for fish and other aquatic life and
wildlife; potential drinking water supplies; recreation; navigation;
and water supply for industry and agriculture. Class SA designated
uses 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 uses
are habitat for fish and aquatic life and wildlife; recreation;
navigation; and industrial and agricultural water supply. Class B*,
applicable to Candlewood Lake, is a subset of Class B and is
identical in all ways to the designated uses, criteria and standards
for Class B waters except for the restriction on direct discharges.
Class SB designated uses are habitat for marine fish and aquatic
life and wildlife; commercial shellfish harvesting; recreation;
industrial water supply; and navigation.
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WATER QUALITY CLASSIFICATIONS (WQC) MAPS are one
of the elements of the Water Quality Standards (WQS) for the
State of Connecticut. The WQS are a part of Connecticut's clean
water program and are essential for protecting and improving water
quality. The WQS follow the principles of Connecticut's Clean
Water Act which is in Chapter 446K of the Connecticut General
Statutes. The WQS provide policy guidance in many areas, for
example decisions on acceptable discharges to water resources,
siting of landfills, remediation or prioritization of municipal
sewerage system projects. The first two elements of the WQS are
the Standards, which set an overall policy for management of water
quality, and the Criteria, which are descriptive and numerical
standards that describe the allowable parameters and goals for
various water quality classifications. A discussion of these two
elements is found in the Water Quality Standards document
available on the CT DEEP website. The third element is the
Classifications and the Water Quality Classification Maps which
show the Classification assigned to each surface and groundwater
resource throughout the State. The WQS are adopted using a public
participation process. The WQC maps are also adopted using a
public participation process but go through hearings separately
from the Standards and Criteria hearings. Revision and adoption of
the WQC data occurs in accordance with the public participation
procedures contained in Section 22a-426 of the Connecticut
General Statutes. Ground WQC is subject to Connecticut
regulation and changes must be reviewed and adopted. All changes
to the Surface WQC require an adoption process which is subject
to federal review and approval in addition to CT regulation. The
adoption dates for the WQC by major drainage basin are:
Housatonic River, Hudson River and Southwest Coastal Basins March 1999; Connecticut River and South Central Coastal Basins February 1993; Thames River, Pawcatuck River and Southeast
Coastal Basins - December 1986. Surface Water Classifications do
not change after the adoption date until the next major revision.
Ground Water Classifications may change after the adoption date
under specific circumstances. The map may have more than one
WQC adoption date because a town may be in more than one
major drainage basin.
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EXPLANATION
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Upper Glade Brook Pond
Green River Pond
Clarks Falls Pond
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Final Aquifer Protection Area (Level A)
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GA, GAA may not meet current standards
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GROUND WATER QUALITY CLASSES
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NOTES:
Surface Water Classifications beginning with S refer to Coastal and Marine Surface Water.
B* is a subset of Class B where no direct wastewater discharges are allowed other than those
consistent with Class AA, A and SA surface waters.
GAA, GAAs
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SURFACE WATER QUALITY CLASSES
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WATER QUALITY CLASSIFICATIONS
STONINGTON, CT
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