-30

BUCKS

DELAWARE

NEW CASTLE

KENT

SUSSEX

7-329

-13

7-1057

-7

-30

-30

25-1064

-33

21-706

49

-30

15-444

-7

15-1728

1

15-585

1

15-620

2

15-1015

-5

15-1540

-5

15-679

-3

23-1160

-11

Artificial

Island

33-934

-75

33-918

-43

-60

PHILADELPHIA

UPDIP LIMIT OF

COASTAL PLAIN SEDIMENTS

SALEM

ELMER

BUENA

SHILOH

ATSION

AVALON

BRISTOL

CANTON

BEVERLY

JENKINS

RARITAN

CAMDEN

KEYPORT

WHITING

DOROTHY

ALLOWAY

MILLVILLE

ADELPHIA

CAPE MAY

FREEHOLD

NEWFIELD

CASSVILLE

TUCKAHOE

MARMORA

S

HOPEWELL

TOCKTON

FOWOODBINE

RTESCUE

ROOSEVELT

ROCKY HILL

LAKEWOOD

COLUMBUS

MARLBORO

WILDWOOD

PLAINFIELD

BRIDGETON

PRINCETON

NEW EGYPT

LAKEHURST

OCEAN CITY

WOODBURY

CEDARVILLE

TUCKERTON

FRANKFORD

PITTSTOWN

FIVE POINTS

OCEANVILLE

BROOKVILLE

RIO GRANDE

TOMS RIVER

CLEMENTON

WEST CREEK

PEMBERTON

ALLENTOWN

BRIDGEPORT

JAMESBURG

RUNNEMEDE

ARTHUR KILL

GREEN BANK

SANDY HOOK

FLEMINGTON

PORT NORRIS

HEISLERVILLE

SEA ISLE CITY

NEW GRETNA

RIEGELSVILLE

PENNINGTON

PITMAN EAST

LUMBERVILLE

HIGHTSTOWN

SHIP BOTTOM

INDIAN MILLS

CHATSWORTH

HAMMONTON

WOODSTOWN

ASBURY PARK

FORKED RIVER

PENNS GROVE

BEACH HAVEN

MOUNT HOLLY

NEWTONVILLE

FRENCHTOWN

SEASIDE PARK

PITMAN WEST

OSWEGO LAKE

ATLANTIC CITY

PHILADELPHIA

WOODMANSIE

FARMINGDALE

PERTH AMBOY

LONG BRANCH

BOMBAY HOOK

CONEY ISLAND

LAMBERTVILLE

MARCUS HOOK

SOUTH AMBOY

MOORESTOWN

BOUND BROOK

THE NARROWS

TRENTON EAST

MAYS LANDING

STONE HARBOR

PLEASANTVILLE

BROWNS MILLS

DELAWARE CITY

TRENTON WEST

DIVIDING CREEK

LONG BEACH NE

PORT ELIZABETH

KESWICK GROVE

WILLIAMSTOWN

TAYLORS BRIDGE

MEDFORD LAKES

BARNEGAT LIGHT

POINT PLEASANT

BEN DAVIS POINT

EGG HARBOR CITY

NEW BRUNSWICK

BRIGANTINE INLET

WILMINGTON SOUTH

MONMOUTH JUNCTION

-40

DOVER

ELKTON

KENTON

DENTON

SMYRNA

MILFORD

CLAYTON

MARYDEL

CECILTON

WYOMING

FREDERICA

MILLINGTON

BURRSVILLE

GOLDSBORO

HARRINGTON

WEST GROVE

MIDDLETOWN

LITTLE CREEK

NEWARK EAST

SUDLERSVILLE

NEWARK WEST

BENNETTS PIER

SAINT GEORGES

MISPILLION RIVER

KENNETT SQUARE

WILMINGTON NORTH

23-9

64

21-43

2

5-801

1

5-119

3

5-70

-8

29-19

-4

25-320

2

23-114

0

23-107

9

23-106

9

23-97

24

23-70

56

23-17

62

23-16

61

21-73

47

21-54

43

21-25

63 21-22

43

21-12

27

7-39

-13

5-1524

8

5-1430

7

5-126

-5

5-122

-1

5-87

-11

5-63

-17

21-706

44

P10105

-4

33-65

-22

29-581

-9

29-85

-25

29-47

-21

25-731

-3 25-495

-2

23-552

60

23-482

10

23-439

-3

23-438

-4

23-365

-1

23-291

70

23-273

47

23-132

11

21-561

57

21-122

69

21-120

70

21-101

37

15-780

-1

15-774

-1

15-727

-7

15-713

-6

15-616

-8

15-569

-8

15-213

-8

15-140

-2

15-135

-4

15-24

-32

7-986

-15

7-734

-51

7-733

-53

7-726

-45

7-476

-43

7-413

-59

7-304

-42

7-186

-57

7-142

-38

7-135

-66

7-132

-66

7-124

-52

5-1546

-7

5-1527

-3

5-1172

-2

5-749

-51

5-726

-25

5-683

-28

5-634

-42

5-440

-30

5-436

-31

5-388

5-385 -36

-41

5-336

-35

5-333

-36

5-332

-28

5-330

-41

5-297

-46

5-290

-45

5-284

-19

5-265

-46

5-261

-44

5-232

-44

5-214

-20

5-128

-10

5-127

-10

5-114

-13

33-972

-51

33-933

-33

33-305

-20

33-251

-35

33-187

-29

33-166

-20

33-158

-26

33-119

-48

33-106

-34

29-779

-21

29-626

-16

29-595

-22

29-588

-24

29-576

-39

29-490

-22

29-440

-24

29-132

-32

29-118

-27

25-728

-10 25-711

-11

25-635

-28

25-634

-30

25-562

-32

25-545

-36

25-272

-33

25-268

-20 25-262

-16

25-247

-24

25-230

-18

25-153

-24

23-1501

42

23-1500

35

23-1346

41

23-401

-13

23-194

-11

23-176

-20

23-147

-18

15-998

-46

15-415

-29

15-374

-43

15-348

-10

15-236

-19

7-1264

-38

7-1040

-14

7-1022

-14

7-1007

-10

5-1806

-30

5-1702

-10

5-1525

-41

5-1484

-14

5-1472

-27

5-1158

-25

5-1089

-23

11-137

-29

29-1781

-13

29-1659

-15

29-1113

-10

23-1181

-23

15-1530

-25

15-1504

-28

15-1485

-28

15-1484

-16

15-1176

-21

15-1036

-48

-30

-20

-50

-20

-10

0

-30

10

40

20

-40

60

-50

-60

-20

-30

0

-20

-40

-40

-20

20

-50

0

-30

-10

0

-10

-30

-30

-40

-10

-10

-20

0

-20

-20

0

-30

-20

-40

-30

CECIL

CAROLINE

KENT

Glendola

Reservoir

Pennsville

BURLINGTON OCEAN

ATLANTIC

SALEM

MONMOUTH

CUMBERLAND

MERCER

HUNTERDON

SOMERSET

WARREN UNION

Dover

Buena

Camden

Avalon

Berlin

Trenton

Matawan

Marlton

Lakewood

Freehold

Red Bank

Cape May

Wildwood

Vineland

New Egypt

Eatontown

Princeton Jamesburg

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

Barnegat Light

Egg Harbor City

Atlantic Highlands

Cape May Court House

GLOUCESTER

CAMDEN

23-171

-10

MARYLAND

Delaware Bay

PENNSYLVANIA

DELAWARE

195

130

206

1

95

70

295

40

30

322

9

NEW JERSEY

Raritan Bay

NEW YORK

40

322

9

Manasquan

Reservoir

QUEEN 

ANNE'S

CAPE MAY

0

Washington 

Canal

Sayreville

Jackson 

Township

Woodstown

MIDDLESEX

U.S. Department of the Interior

U.S. Geological Survey 

Prepared in cooperation with the

New Jersey Department of Environmental Protection

Scientific Investigations Report 2013–5232

Middle and Undifferentiated Potomac-Raritan-Magothy aquifer—PLATE 8

DePaul, V.T., and Rosman, Robert, 2015, Water-Level Conditions in the

Confined Aquifers of the New Jersey Coastal Plain, 2008

By

Vincent T. DePaul and Robert Rosman

2015

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

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 2.5 5 10 MILES

Potentiometric surface of the 0 2.5 5 10 KILOMETERS Middle and undifferentiated 

Potomac-Raritan-Magothy aquifer, 2008

7-185

-63

15-742

-26

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 Middle Potomac aquifer 

(From Martin, 1984)

10,000 milligram per liter line of equal chloride concentration

(From Pope and Gordon, 1999; Vroblesky and Fleck, 1991) 

Outcrop of the Potomac and Raritan 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 (Modified from DePaul and others, 2009; 

Cushing and others, 1973)

Surface water freshwater-saltwater interface

ELMER