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PL71

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RU60

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PS42

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PS75

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PL64

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YO48

RA55YO51

JU76

PS79

RU16

JM25

RD17TH35

RA19

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JU85

RU87

RU67

RA08

CM24

CU01

JL14

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PS08

PL12

RA69

NE05

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TC05

RU24

JL37

CM07NE50

RA64

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AS09

JU81

NE22

PS67

JM28

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RD55

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PS36

JA03

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CU37

JA44

NE57

RU55

JL54

RA74

JR02

YO61

TH03

YO17

YO21

JL45

NE13

PS44

JL55

PS27

NE36

TP05

CB35

BS11

JL35

RU81

JM47

CU65

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PL39

YO63JM51

NE68

NE35 CM12

RD56

CU07

CB19

NE14

PU18

JU14

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JM79

RU37

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JA25

AS02

PL42

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JM56

RA22

RU33

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RA01

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TC29

PL01

PL36

RD66

NE30

PL32

JU84

JM54

JR20

RL20

JM09

JU09

CU33

JU75

PS11

JR16

YO69

TH08

RA62

CU05

PS70

RU62

YA03

BS28

RD22

JR15

RD60

CU50

JM81

CU69

RU32

RD54

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RU19

RU65

RA02

JU10

JM07

JL13

JL40

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RU84

CU42

JA01

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JL30

CB32

JL16

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RA67

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CU53

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BS33

RL07

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JM40

JU29

NE78

TC28

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CU61

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CM10

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CU25

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RA51

RA17

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CU12

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CU35

RU70

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JL18

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NE67

RL09

RA56

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TC27

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RU63CU30

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PS43

PS71

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JM19

CL01AO26

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RA24

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CB12

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JM71

CU19

RU36

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RU54

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RU07

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PS17

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RD64

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CM01

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CU63

JM77

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CU59

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CU39RD35

JM64

CU70

RA27

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CU54

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CU51

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CU06

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CU66

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RU72

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CU60

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PS78

BS31

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BS18

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JM57

PS21

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CU21

PL27

TH11

PL51

RD43

RU86

RL03

RU27

RL12TH17

AS17

CU15

NE87

PL50

JU07

JL25

CU48

CU45

JA12

JA38

PL38

NE08

JA13

RD16

PL69

PS73

JM30

PL15

AO09

CB01

NE10

PS66

YA04

JM75

CU16

RD05

RA20

RA65

JL57

JM24

JM15

RU44

RD29

JM85

TH15

PL23

YA06

RU03

TH18

RD33

JR13

JU59

JU22

CU27

YO40

RU90RU89

CM25

CU02

JU77

AS19

JU46

RA43

JM62

RU57

RA72

PS15

PS04

PS20

NE07

CM06

PL61

JU71

JM33

PS38

PL28

BS27

JU25

YO43

JL34

TH07

CB14

RA05

JL50

PU08

RU93

TH09

JA20

TH36

CB27

RD73

JL15

TH23

JU42

BS01

TH20RU94

RA03

BS34

BS06

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JA09

JU12

RL16 RL21

CB03

AS05

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PL04

NE11NE01

PL63

CM32RL01

PU06

RL04

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BS03

PL54

CB33

AS06

PS86

CB34

RD14

RU28

TH22

RD04 RD69

TH45

NE85

AO01

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RL22NE04

PL20

CL05

PU09

NE82

RL05

PU20

RD13 RL08

JU17

PU15

TH19CL04YA02

PU04

PL74

AS08

RL02

TP15TP17

AS11

PU05

CM26RD40

PS87

RL17

TP19

RD42

TC35

CM28

CB30

JU16

NE84

RL24

NE89

PU21

PU07

PU22

TH46

TC20

RD71YA01

TH05

RL15RD68

NE90

RL19

Virginia's 6th Order NWBD* Units

* NWBD: National Watershed Boundary Dataset (1,251 6th order watersheds) (also referred to as 12 digit hydrologic units, for example: Ramseys Draft: 6th order code JU62 = 12 digit code 020802020102)

Major River BasinsChesapeake Bay/Atlantic Ocean and Small CoastalChowan River and Dismal SwampJames RiverNew RiverPotomac RiverRappahannock RiverRoanoke and Yadkin RiversShenandoah RiverTennessee and Big Sandy RiversYork River

0 25 50 75 10012.5Miles Sources:

Virginia Department of Environmental Quality (Water Quality Standards) Virginia Department of Conservation & Recreation (Aug 2016; vanwbd v5)«