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Complete Listing of NAWQA's Study Units and Summary Reports:

study unit map

Number on map

NAWQA Study unit name

Study-Unit Summary Report and Press Release (if available)

States in Study Unit

Assessment Schedule

1

Acadian-Pontchartrain Drainages

Circular 1232

LA, MS

1997-2001

2

Albemarle-Pamlico Drainage Basin 

Circular 1157

NC, VA

1991-95

3

Allegheny and Monongahela River Basins

Circular 1202   (Press Release)

MD, NY, PA, WV

1994-98

4

Apalachicola-Chattahoochee-Flint River Basin

Circular 1164

AL, FL, GA

1991-95

5

Central Arizona Basins

Circular 1213

NJ, NY

1994-98

6

Central Columbia Plateau

Circular 1144

ID, WA

1991-95

7

Central Nebraska Basins

Circular 1163

NE

1991-95

8

Connecticut, Housatonic and Thames River Basins 

Circular 1155

CT, MA, NH, NY, RI, VT

1991-95

9

Cook Inlet Basin

Circular 1240

AK

1997-2001

10

Delaware River Basin

Circular 1227

PA, NY, NJ

1997-2001

11

Delmarva Peninsula

Circular 1228   (Press Release)

DE, MD, VA

1999-2001

12

Eastern Iowa Basins

Circular 1210   (Press Release)

IA, MN

1994-98

13

Georgia-Florida Coastal Plain

Circular 1151

GA, FL

1991-95

14

Great and Little Miami River Basins

Circular 1229   (Press Release)

OH, IN

1997-2001

15

Great Salt Lake Basins

Circular 1236

UT, ID, WY

1997-2001

16

Hudson River Basin

Circular 1165

NY, CT, MA, NJ, VT

1991-95

17

Island of Oahu

Circular 1239   (Press Release)

HI

1997-2001

18

Kanawha-New River Basins

Circular 1204   (Press Release)

WV, VA, NC

1994-98

19

Lake Erie-Lake Saint Clair Drainages

Circular 1203   (Press Release)

IN, MI, OH, PA, NY

1994-98

20

Long Island-New Jersey Coastal Drainages 

Circular 1201

NJ, NY

1994-98

21

Lower Illinois River Basin

Circular 1209

IL

1994-98

22

Lower Susquehanna River Basin

Circular 1168

MD, PA

1991-95

23

Lower Tennessee River Basin

Circular 1233   (Press Release)

TN, AL, GA

1997-2001

24

Las Vegas Valley Area and the Carson and Truckee River Basins 

Circular 1170

NV, CA

1991-95

25

Mississippi Embayment

Circular 1208   (Press Release)

AR, KY, LA, MS, MO, TN

1994-98

26

Mobile River Basin

Circular 1231   (Press Release)

MS, AL, GA

1997-2001

27

New England Coastal Basins

Circular 1226   (Press Release)

ME, MA, NH, RI

1997-2001

28

Northern Rockies Intermontane Basins

Circular 1235

ID, MT, WA

1997-2001

29

Ozark Plateaus

Circular 1158

AR, KS, MO, OK

1991-95

30

Potomac River Basin

Circular 1166

DC, MD, PA, VA, WV

1991-95

31

Puget Sound Basin

Circular 1216

WA

1994-98

32

Red River of the North Basin

Circular 1169

MN, ND, SD

1991-95

33

Rio Grande Valley

Circular 1162

CO, NM, TX

1991-95

34

Sacramento River Basin

Circular 1215   (Press Release)

CA

1994-98

35

San Joaquin-Tulare Basins

Circular 1159

CA

1991-95

36

Santa Ana Basin

Circular 1238   (Press Release)

CA

1997-2001

37

Santee River Basin and Coastal Drainages

Circular 1206

SC, NC

1994-98

38

South-Central Texas

Circular 1212   (Press Release)

TX

1994-98

39

South Platte River Basin

Circular 1167

CO, NE, WY

1991-95

40

Southern Florida

Circular 1207   (Press Release)

FL

1994-98

41

Trinity River Basin

Circular 1171

TX

1991-95

42

Upper Colorado River Basin

Circular 1214

CO, UT

1994-98

43

Upper Illinois River Basin

Circular 1230

IL, WI, IN

1997-2001

44

Upper Mississippi River Basin

Circular 1211   (Press Release)

MN, WI

1994-98

45

Upper Snake River Basin

Circular 1160

ID, MT, NV, UT, WY

1991-95

46

Upper Tennessee River Basin

Circular 1205

GA, KY, NC, SC, TN, VA

1994-98

47

Western Lake Michigan Drainages

Circular 1156

MI, WI

1991-95

48

White River Basin

Circular 1150

IN

1991-95

49

Willamette Basin

Circular 1161

OR

1991-95

50

Yakima River Basin

Circular 1237

WA

1999-2001

51

Yellowstone River Basin

Circular 1234   (Press Release)

MT, WY, ND

1997-2001

 

High Plains Regional Ground Water Study

 

TX, NM, OK, KS, NE, CO, WY, SD

1998-2004

       

 

NAWQA Intranet (Internal Use Only)

     
       

 U.S. Department of the Interior, U.S. Geological Survey
 Contact for NAWQA: nawqa_whq@usgs.gov
 Maintainer: James Ulrich- julrich@usgs.gov
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