75°45' 75°30' 75°15' 75° 74°45' 74°30' 74°15' 74...

ELMER

SALEM

BUENA

SHILOH

ATSION

AVALON

BRISTOL

CANTON

BEVERLY

JENKIN

S

RARITAN

CAMDEN

KEYPORT

WHITIN

G

DOROTHY

ALLOWAY

MILLVILL

E

ADELPHIA

CAPE MAY

FREEHOLD

NEWFIE

LD

CASSVILLE

TUCKAHOE

MARMORA

HOPEWELL

STOCKTON

WOODBIN

E

FORTESCUE

ROOSEVELT

ROCKY HILL

LAKEW

OOD

COLUMBUS

MARLBORO

WILD

WOOD

PLAIN

FIELD

BRIDGETON

PRINCETON

LAKEHURST

NEW E

GYPT

OCEAN CITY

WOODBURY

CEDARVILLE

TUCKERTON

FRANKFORD

PITTSTOWN

OCEANVILLE

FIVE P

OINTS

BROOKVILLE

RIO G

RANDE

TOMS RIV

ER

CLEMENTON

WEST C

REEK

PEMBERTON

ALLENTOW

N

BRIDGEPORT

JAMESBURG

RUNNEMEDE

ARTHUR KILL

GREEN BANK

SANDY HOOK

FLEMIN

GTON

PORT NORRIS

HEISLE

RVILLE

SEA ISLE

CITY

NEW GRETNA

RIEGELS

VILLE

PENNINGTON

PITMAN EAST

LUMBERVILL

E

HIGHTSTOW

N

SHIP BOTTOM

INDIA

N MILL

S

CHATSWORTH

HAMMONTON

WOODSTOW

N

ASBURY PARK

FORKED RIV

ER

PENNS GROVE

BEACH HAVEN

MOUNT HOLL

Y

NEWTONVILL

E

FRENCHTOWN

SEASIDE PARK

OSWEGO LA

KE

PITMAN WEST

ATLANTIC

CITY

PHILADELP

HIA

WOODMANSIE

FARMIN

GDALE

PERTH AMBOY

LONG B

RANCH

BOMBAY HOOK

CONEY ISLA

ND

LAMBERTVILL

E

MARCUS HOOK

SOUTH AMBOY

MOORESTOWN

BOUND BROOK

THE NARROW

S

TRENTON EAST

MAYS LANDIN

G

STONE HARBOR

PLEASANTVILL

E

BROWNS M

ILLS

DELAWARE C

ITY

TRENTON WEST

DIVID

ING C

REEK

LONG B

EACH NE

PORT ELIZ

ABETH

KESWIC

K GROVE

WILL

IAMSTOW

N

TAYLO

RS BRID

GE

MEDFORD LAKES

BARNEGAT LIGHT

POINT P

LEASANT

BEN DAVIS

POIN

T

EGG HARBOR C

ITY

NEW B

RUNSWIC

K

BRIGANTIN

E INLE

T

WILM

INGTON S

OUTH

MONMOUTH JUNCTIO

N

DOVER

ELKTON

KENTON

DENTON

SMYRNA

MILFORD

CLAYTON

MARYDEL

CECILTON

WYOMIN

G

FREDERICA

MILLINGTON

BURRSVILLE

GOLDSBORO

HARRINGTON

MIDDLE

TOWN

LITTLE

CREEK

NEWARK EAST

SUDLERSVILL

E

NEWARK WEST

BENNETTS PIE

R

SAINT G

EORGES

MISPILL

ION R

IVER

KENNETT SQUARE

WILM

INGTON N

ORTH

9-4155

11-7370

9-14916

9-71-15

9-67-27

29-813-3

29-775-1

9-526-26

9-519-26

9-304-20

29-1621-24

Villas

Odessa

Newark

Belmar

Brielle

Keyport

Longport

Woodstown

Surf City

Clementon

Lakehurst

Middletown

Mantoloking

Union Beach

Delaware City

Harvey Cedars

Wildwood Crest

Seaside Heights

Spring Lake Heights

CECIL

CAROLINE

KENT

Glendola Reservoir

GAR

DEN

STAT

E PA

RKW

AY

OCEAN

BURLINGTON

ATLANTIC

SALEM

MONMOUTH

CUMBERLAND

MIDDLESEX

MERCER

CAMDEN

GLOUCESTER

HUNTERDONSOMERSET

UNION

BUCKS

DELAWARE

Dover

Buena

Camden

Avalon

Berlin

Trenton

Matawan

Marlton

Lakewood

Freehold

Red Bank

Cape May

Wildwood

Vineland

New Egypt

Eatontown

JamesburgPrinceton

Keansburg

Millville

Bridgeton

Tuckerton

Hammonton

Glassboro

Toms River

Hightstown

Sea Bright

Sayreville

Rio Grande

Ocean City

Brigantine

Manahawkin

Wilmington

Spring Lake

Asbury Park

Long Branch

Beach Haven

Ship Bottom

Browns Mills

Stone Harbor

Margate City

Ventnor City

Mays Landing

Forked River

Seaside Park

New Brunswick

Atlantic City

Pleasantville

Medford Lakes

Point Pleasant

East Brunswick

Barnegat Light

Egg Harbor City

Atlantic Highlands

Cape May Court House

MA

RY

LAN

D

Delaware Bay

PENNSYLVANIA

DELAWARE

195

130

206

1

95

70

295

40

30

322

9

NEW JERSEY

Raritan Bay

NEW YORK

40

322

9

ManasquanReservoir

QUEEN ANNE'S

CAPE MAY

-20

-20

PHILADELPHIA

UPDIP L

IMIT O

F COASTAL PLAIN S

EDIMENTS

AVALON

CAPE MAY

TUCKAHOE

MARMORA

WOODBIN

E

WILD

WOOD

OCEAN CITY

RIO G

RANDE

HEISLE

RVILLE

SEA ISLE

CITY

STONE HARBOR

PORT ELIZ

ABETH

9-525-13

9-994

9-890

9-5188

9-4926

9-3544

9-3156

9-3143

9-2922

9-2815

9-2075

9-80-4

9-78-7

9-60-9

9-49-9

9-43-9

9-505-3

9-394-7

9-385-5

9-366-1

9-301-9

9-213-4

9-210-9

9-188-5 9-180

-5

9-159-6

9-150-9

9-54-16

9-48-10

9-42-11

9-30-14

9-18-149-11

-10

9-617-13

9-395-12

9-353-11

9-74-12

9-358-1

Villas

Longport

Wildwood Crest

ATLANTIC

Avalon

Cape May

Wildwood

Rio Grande

Ocean City

Stone Harbor

Cape May Court House

-10

-5

0

74°45'75°

39°15'

39°

9-52-17

9-3105

9-187-5

Delaware Bay

9-36-15

9-27-12

NEW CASTLE

KENT

SUSSEX

CAPE MAY

Middle Township

UpperTownship

Lower

Township

DennisTownship

0

0

4 MILES

0

9-66213

CU

MB

ERLA

ND

Egg Harbor Township

HamiltonTownship

West Cape May

CMCWD

LTMUA

Figure 1-1. Potentiometric surface of the Cohansey aquifer, New Jersey Coastal Plain, 2008.

0 1 2

4 KILOMETERS0 1 2

U.S. Department of the InteriorU.S. Geological Survey

Prepared in cooperation with theNew Jersey Department of Environmental Protection

Scientific Investigations Report 2013–5232Cohansey aquifer and Rio Grande water-bearing zone—PLATE 1

DePaul, V.T., and Rosman, Robert, 2015, Water-Level Conditions in theConfined Aquifers of the New Jersey Coastal Plain, 2008

ByVincent T. DePaul and Robert Rosman

2015

74°74°15'74°30'74°45'75°75°15'75°30'75°45'

40°30'

40°15'

40°

39°45'

39°30'

39°15'

39°

Base modified from U.S. Geological Survey digital data, 1:100,000, 1983, Universal Transverse Mercator Projection Zone 18

0 5 10 MILES2.5

0 5 10 KILOMETERS2.5Potentiometric surface of the Cohansey aquifer and the Rio Grande water-bearing zone, 2008

Figure 1-2. Potentiometric surface of the Rio Grande water-bearing zone, New Jersey Coastal Plain, 2008.

7-185-63

7-273-56

EXPLANATION

Observation well with hydrograph—Upper number is well number; lower number is water-level altitude, in feet

Approximate updip limit of the Rio Grande water-bearing zone

10,000-milligram-per-liter line of equal chloride concentration (Simulated freshwater-saltwater interface, from Pope and Gordon, 1999)

Outcrop of the Kirkwood Formation

U.S. Geological Survey 7.5-minute quadrangle and name

Altitude of potentiometric surface—Dashed where inferred. Contour interval is variable. Datum is National Geodetic Vertical Datum of 1929 (NGVD 29)

20

Production well—Upper number is well number; lower number is water-level altitude, in feet

Observation well—Upper number is well number; lower number is water-level altitude, in feet

Estimated location of 250-milligram-per-liter line of equal chloride concentration. Dashed where inferred (From DePaul and others, 2009; Lacombe and Rosman, 2001)

Surface water freshwater-saltwater interface

9-2815

9-49-9

9-54-16

EXPLANATION

Observation well with hydrograph—Upper number is well number; lower number is water-level altitude, in feet

U.S. Geological Survey 7.5-minute quadrangle and name

Altitude of potentiometric surface—Dashed where inferred. Contour interval is variable. Datum is National Geodetic Vertical Datum of 1929 (NGVD 29)

20

Production well—Upper number is well number; lower number is water-level altitude, in feet

Observation well—Upper number is well number; lower number is water-level altitude, in feet

Estimated location of 250-milligram-per-liter line of equal chloride concentration. Dashed where inferred. (Modified from DePaul and others, 2009)

Surface water freshwater-saltwater interface

-15

AVAL

ON

ELM

ER

9-304-20

CAPE HENLO

PEN

PRICE

HOBBS LEWESMILTON

GALENA

RIDGELY

HICKMAN

BAY VIEW

ELLENDALE

EARLEVILLE

NORTH EAST

CHURCH HILL

GREENWOODFOWLING CREEK

CAPE HENLOPEN

CUMBERLAND

PORT NORRIS

DIVID

ING C

REEK

CAPE HENLO

PEN