FATT Runoff Analyses

PART II

Data Input and Results Summary

N

EW

S

Prin

ted

Mar

ch 2

7, 2

002

Sen

g C

reek

Wat

ersh

ed

Dra

inag

e A

reas

2B 3B 4aB

4bB

5aB

5bB

Str

eam

s

1B

Sen

g C

reek

LID

AR

3D

Vie

w

Wat

ersh

ed D

elin

eati

on

Sen

g C

reek

LID

AR

P

lan

Vie

w

Wat

ersh

ed D

elin

eati

on

Seng

Cre

ek W

ater

shed

Bou

ndar

ies

SN

EW

Seng

Cre

ek S

tudy

Are

a

3000

030

0060

00Fe

et

Lege

nd

Seng

Cre

ekSc

enar

io 1

Scen

ario

2Sc

enar

io 3

Scen

ario

4Sc

enar

io 5

With

Log

ging

(CN

70

& 73

)W

ithou

t Log

ging

(CN

70)

With

out L

oggi

ng (C

N 7

0)W

ithou

t Log

ging

(CN

70)

With

Log

ging

(CN

70

& 73

)W

ith M

inin

g (C

N 7

5 &

87)

With

Min

ing

(CN

75

& 87

)R

ecla

imed

Min

ing

(CN

70)

With

out M

inin

g (C

N 7

0)W

ithou

t Min

ing

(CN

70)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

Pris

tine

Topo

grap

hy (U

SGS

DEM

Dat

a)Pr

istin

e To

pogr

aphy

(USG

S D

EM D

ata)

Out

let N

ode

Even

t25

yr

100

yrEv

ent

25 y

r10

0 yr

Even

t25

yr

100

yrEv

ent

25 y

r10

0 yr

Even

t25

yr

100

yr14

fps

1C25

9534

6746

2224

5132

2443

5023

7931

1842

3024

5732

6544

3126

0935

4547

512C

2297

3209

4255

2171

2986

4008

2097

2861

3867

2190

3005

4065

2322

3243

4339

3C19

9528

1637

2218

8326

2235

0718

1024

9033

5918

2825

3434

1819

4227

3336

414C

1440

2155

2872

1364

1991

2689

1293

1864

2545

1374

1941

2654

1452

2112

2847

5C71

311

4515

1168

610

9214

5261

896

113

0670

510

7814

6573

211

3115

24

Gage

2R1C

2R3R

2C3R

4R

3C

4R

5R

4C

5R5C

5bB

5aB

4aB

4bB

3B2B

1B

Wat

ersh

ed D

elin

eatio

n an

d B

asin

/ O

utle

t / R

outin

g N

amin

g

Prin

ted

on 4

/18/

2002

9:44

AM

WM

S Pe

ak D

isch

arge

Val

ues.

xls

Page

1 o

f 4

Seng

Cre

ek H

ydro

logy

Ana

lysi

s

Scen

ario

1Sc

enar

io 2

Scen

ario

3Sc

enar

io 4

Scen

ario

5W

ith L

oggi

ng (C

N 7

0 &

73)

With

out L

oggi

ng (C

N 7

0)W

ithou

t Log

ging

(CN

70)

With

out L

oggi

ng (C

N 7

0)W

ith L

oggi

ng (C

N 7

0 &

73)

With

Min

ing

(CN

75

& 87

)W

ith M

inin

g (C

N 7

5 &

87)

With

Rec

laim

ed M

inin

g (C

N 7

0)W

ithou

t Min

ing

(CN

70)

With

out M

inin

g (C

N 7

0)To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a )To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a)To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a)Pr

istin

e To

pogr

aphy

(USG

S D

EM D

ata)

Pris

tine

Topo

grap

hy (U

SGS

DEM

Dat

a)B

otto

m o

f Sen

g C

reek

at

Nod

e 1C

Stor

m E

vent

25 Y

r Sto

rm10

0 yr

Sto

rmSt

orm

Eve

nt25

Yr S

torm

100

yr S

torm

Stor

m E

vent

25 Y

r Sto

rm10

0 yr

Sto

rmSt

orm

Eve

nt25

Yr S

torm

100

yr S

torm

Stor

m E

vent

25 Y

r Sto

rm10

0 yr

Sto

rmM

ax F

low

259 5

3467

4622

2451

3224

4350

2379

3118

4230

2457

3265

4431

2609

3545

4751

Diff

eren

ce21

634

939

272

106

120

138

202

191

152

280

320

% D

iffer

ence

9.1%

11.2

%9.

3%3.

0%3.

4%2.

8%5.

6%6.

2%4.

3%6.

2%8.

6%7.

2%

Diff

eren

ce14

424

327

2-6

-41

-81

-78

-147

-201

% D

iffer

ence

5.9%

7.5%

6.3%

-0.2

%-1

.3%

-1.9

%-3

.3%

-4.7

%-4

.8%

At N

ode

2CSt

orm

Eve

nt25

Yr S

torm

100

yr S

torm

Stor

m E

vent

25 Y

r Sto

rm10

0 yr

Sto

rmSt

orm

Eve

nt25

Yr S

torm

100

yr S

torm

Stor

m E

vent

25 Y

r Sto

rm10

0 yr

Sto

rmSt

orm

Eve

nt25

Yr S

torm

100

yr S

torm

Max

Flo

w22

9 732

0942

5521

7129

8640

0820

9728

6138

6721

9030

0540

6523

2232

4843

39

Diff

eren

ce20

034

838

874

125

141

107

204

190

132

243

274

% D

iffer

ence

9.5%

12.2

%10

.0%

3.5%

4.4%

3.6%

4.9%

6.8%

4.7%

6.0%

8.1%

6.7%

Diff

eren

ce12

622

324

7-1

9-1

9-5

7-9

3-1

44-1

98%

Diff

eren

ce5.

8%7.

5%6.

2%-0

.9%

-0.6

%-1

.4%

-4.4

%-5

.0%

-5.1

%

At N

ode

3CSt

orm

Eve

nt25

Yr S

torm

100

yr S

torm

Stor

m E

vent

25 Y

r Sto

rm10

0 yr

Sto

rmSt

orm

Eve

nt25

Yr S

torm

100

yr S

torm

Stor

m E

vent

25 Y

r Sto

rm10

0 yr

Sto

rmSt

orm

Eve

nt25

Yr S

torm

100

yr S

torm

Max

Flo

w19

9 528

1637

2218

8326

2235

0718

1024

9033

5918

2825

3434

1819

4227

3336

41

Diff

eren

ce18

532

636

373

132

148

167

282

304

114

199

223

% D

iffer

ence

10.2

%13

.1%

10.8

%4.

0%5.

3%4.

4%9.

1%11

.1%

8.9%

6.2%

7.9%

6.5%

Diff

eren

ce11

219

421

555

8889

-18

-44

-59

% D

iffer

ence

5.9%

7.4%

6.1%

3.0%

3.5%

2.6%

-1.0

%-1

.8%

-1.8

%

Com

paris

on w

ith S

cena

rio 4

Com

paris

on w

ith S

cena

rio 4

Com

paris

on w

ith S

cena

rio 4

Com

paris

on w

ith S

cena

rio 1

Com

paris

on w

ith S

cena

rio 3

Com

paris

on w

ith S

cena

rio 1

Com

paris

on w

ith S

cena

rio 3

Com

paris

on w

ith S

cena

rio 3

Com

paris

on w

ith S

cena

rio 3

Com

paris

on w

ith S

cena

rio 1

Com

paris

on w

ith S

cena

rio 3

Com

paris

on w

ith S

cena

rio 4

Com

paris

on w

ith S

cena

rio 4

Seng

Cre

ek W

ater

shed

H

ydro

logy

Ana

lysi

s

Com

paris

on w

ith S

cena

rio 3

Com

paris

on w

ith S

cena

rio 3

Com

paris

on w

ith S

cena

rio 2

Com

paris

on w

ith S

cena

rio 4

Com

paris

on w

ith S

cena

rio 2

Com

paris

on w

ith S

cena

rio 2

Com

paris

on w

ith S

cena

rio 3

Com

paris

on w

ith S

cena

rio 3

Tota

l Inf

luen

ce

Topo

grap

hy In

fluen

ceLo

ggin

g In

fluen

ceM

inin

g In

fluen

ce

Topo

grap

hy In

fluen

ceLo

ggin

g In

fluen

ceM

inin

g In

fluen

ce

Tota

l Inf

luen

ce

Topo

grap

hy In

fluen

ceLo

ggin

g In

fluen

ceM

inin

g In

fluen

ce

Tota

l Inf

luen

ce

Logg

ing

Influ

ence

Cro

ss C

heck

Logg

ing

Influ

ence

Cro

ss C

heck

Logg

ing

Influ

ence

Cro

ss C

heck

Com

paris

on o

f Ana

lysi

s R

esul

ts.x

ls P

age

1 of

13

Sen

g C

reek

Hyd

rolo

gy

An

alys

is

Sce

nari

o 1

Sce

nari

o 2

Sce

nari

o 3

Sce

nari

o 4

Sce

nari

o 5

With

Log

ging

(CN

70

& 73

)W

ithou

t Log

ging

(CN

70)

With

out L

oggi

ng (C

N 7

0)W

ithou

t Log

ging

(CN

70)

With

Log

ging

(CN

70

& 73

)W

ith M

inin

g (C

N 7

5 &

87)

With

Min

ing

(CN

75

& 87

)W

ith R

ecla

imed

Min

ing

(CN

70)

With

out M

inin

g (C

N 7

0)W

ithou

t Min

ing

(CN

70)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Pris

tine

Topo

grap

hy (U

SGS

DEM

Dat

a)Pr

istin

e To

pogr

aphy

(USG

S D

EM D

ata)

Sen

g C

reek

Wat

ersh

ed

Hyd

rolo

gy

An

alys

is

at N

od

e 4C

Stor

m E

vent

25 Y

r Sto

rm10

0 yr

Sto

rmSt

orm

Eve

nt25

Yr S

torm

100

yr S

torm

Stor

m E

vent

25 Y

r Sto

rm10

0 yr

Sto

rmSt

orm

Eve

nt25

Yr S

torm

100

yr S

torm

Stor

m E

vent

25 Y

r Sto

rm10

0 yr

Sto

rmM

ax F

low

1440

2155

2872

1364

1991

2689

1293

1864

2545

1374

1941

2654

1452

2112

2847

Diff

eren

ce14

729

132

771

127

144

6621

421

878

171

193

% D

iffer

ence

11.4

%15

.6%

12.8

%5.

5%6.

4%5.

7%4.

8%11

.0%

8.2%

5.7%

8.8%

7.3%

Diff

eren

ce76

164

183

-10

5035

-81

-77

-109

% D

iffer

ence

5.6%

8.2%

6.8%

-0.7

%2.

6%1.

3%-6

.3%

-4.1

%-4

.3%

Do

wn

stre

am o

f Val

ley

Fill

at

No

de

5CSt

orm

Eve

nt25

Yr S

torm

100

yr S

torm

Stor

m E

vent

25 Y

r Sto

rm10

0 yr

Sto

rmSt

orm

Eve

nt25

Yr S

torm

100

yr S

torm

Stor

m E

vent

25 Y

r Sto

rm10

0 yr

Sto

rmSt

orm

Eve

nt25

Yr S

torm

100

yr S

torm

Max

Flo

w71

311

4515

1168

610

9214

5261

896

113

0670

510

7814

6573

211

3115

24

Diff

eren

ce95

184

205

6813

114

68

6746

2753

59%

Diff

eren

ce15

.4%

19.1

%15

.7%

11.0

%13

.6%

11.2

%1.

1%6.

2%3.

1%3.

8%4.

9%4.

0%

Diff

eren

ce27

5359

-19

14-1

3-8

7-1

17-1

59%

Diff

eren

ce3.

9%4.

9%4.

1%-2

.8%

1.3%

-0.9

%-1

4.1%

-12.

2%-1

2.2%

Com

pari

son

with

Sce

nari

o 3

Com

pari

son

with

Sce

nari

o 3

Com

pari

son

with

Sce

nari

o 3

Com

pari

son

with

Sce

nari

o 3

Com

pari

son

with

Sce

nari

o 2

Com

pari

son

with

Sce

nari

o 1

Com

pari

son

with

Sce

nari

o 2

Com

pari

son

with

Sce

nari

o 3

Com

pari

son

with

Sce

nari

o 4

Com

pari

son

with

Sce

nari

o 4

Com

pari

son

with

Sce

nari

o 4

Com

pari

son

with

Sce

nari

o 4

Com

pari

son

with

Sce

nari

o 1

Com

pari

son

with

Sce

nari

o 3

Topo

grap

hy In

fluen

ceLo

ggin

g In

fluen

ceM

inin

g In

fluen

ce

Tota

l Inf

luen

ce

Topo

grap

hy In

fluen

ceLo

ggin

g In

fluen

ceM

inin

g In

fluen

ce

Tota

l Inf

luen

ce

Logg

ing

Influ

ence

Cro

ss C

heck

Logg

ing

Influ

ence

Cro

ss C

heck

Com

paris

on o

f Ana

lysi

s R

esul

ts.x

ls P

age

2 of

13

Sen

g C

reek

Hyd

rolo

gy

An

alys

is

Sce

nari

o 1

Sce

nari

o 2

Sce

nari

o 3

Sce

nari

o 4

Sce

nari

o 5

With

Log

ging

(CN

70

& 73

)W

ithou

t Log

ging

(CN

70)

With

out L

oggi

ng (C

N 7

0)W

ithou

t Log

ging

(CN

70)

With

Log

ging

(CN

70

& 73

)W

ith M

inin

g (C

N 7

5 &

87)

With

Min

ing

(CN

75

& 87

)W

ith R

ecla

imed

Min

ing

(CN

70)

With

out M

inin

g (C

N 7

0)W

ithou

t Min

ing

(CN

70)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Pris

tine

Topo

grap

hy (U

SGS

DEM

Dat

a)Pr

istin

e To

pogr

aphy

(USG

S D

EM D

ata)

Sen

g C

reek

Wat

ersh

ed

Hyd

rolo

gy

An

alys

is

Wat

ersh

ed D

elin

eatio

n an

d B

asin

/ O

utle

t / R

outin

g N

amin

g

Gag

e2R

1C2R

3R2C

3R4R

3C

4R

5R

4C

5R5C

5bB

5aB

4aB

4bB

3B

2B

1B

Com

paris

on o

f Ana

lysi

s R

esul

ts.x

ls P

age

3 of

13

Sen

g C

reek

Hyd

rolo

gy

An

alys

is

Sce

nari

o 1

Sce

nari

o 2

Sce

nari

o 3

Sce

nari

o 4

Sce

nari

o 5

With

Log

ging

(CN

70

& 73

)W

ithou

t Log

ging

(CN

70)

With

out L

oggi

ng (C

N 7

0)W

ithou

t Log

ging

(CN

70)

With

Log

ging

(CN

70

& 73

)W

ith M

inin

g (C

N 7

5 &

87)

With

Min

ing

(CN

75

& 87

)W

ith R

ecla

imed

Min

ing

(CN

70)

With

out M

inin

g (C

N 7

0)W

ithou

t Min

ing

(CN

70)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Pris

tine

Topo

grap

hy (U

SGS

DEM

Dat

a)Pr

istin

e To

pogr

aphy

(USG

S D

EM D

ata)

Sen

g C

reek

Wat

ersh

ed

Hyd

rolo

gy

An

alys

is

Gag

e

Land

Use

s

SYM

BOL

- ID

- N

AME

0 R

esid

enta

l Are

a - 7

91

Min

ing

Vege

tate

d - 7

52

Min

ing

Unv

eget

ated

- 87

3 G

ood

Woo

ds -

704

Pa

st L

oggi

ng (1

- 5

yrs)

- 73

2R1C

2R3R

2C3R

4R

3C

4R

5R

4C

5R5C

5bB

5aB

4aB

4bB

3B2B

1B

Sce

nari

o 1

Land

Use

Com

paris

on o

f Ana

lysi

s R

esul

ts.x

ls P

age

4 of

13

Sen

g C

reek

Hyd

rolo

gy

An

alys

is

Sce

nari

o 1

Sce

nari

o 2

Sce

nari

o 3

Sce

nari

o 4

Sce

nari

o 5

With

Log

ging

(CN

70

& 73

)W

ithou

t Log

ging

(CN

70)

With

out L

oggi

ng (C

N 7

0)W

ithou

t Log

ging

(CN

70)

With

Log

ging

(CN

70

& 73

)W

ith M

inin

g (C

N 7

5 &

87)

With

Min

ing

(CN

75

& 87

)W

ith R

ecla

imed

Min

ing

(CN

70)

With

out M

inin

g (C

N 7

0)W

ithou

t Min

ing

(CN

70)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Pris

tine

Topo

grap

hy (U

SGS

DEM

Dat

a)Pr

istin

e To

pogr

aphy

(USG

S D

EM D

ata)

Sen

g C

reek

Wat

ersh

ed

Hyd

rolo

gy

An

alys

is

CN

=72.

4 A

=0.7

2 m

î2

CN

=71.

9 A

=0.7

1 m

î2

CN

=72.

5 A

=1.1

3 m

î2

CN

=72.

0 A

=0.6

0 m

î2

CN

=73.

5 A

=0.8

8 m

î2

CN

=74.

3 A

=0.6

0 m

î2

CN

=74.

3 A

=0.7

2 m

î2

Gag

e

Sce

nari

o 1

Wat

ersh

ed B

ound

arie

san

d C

ompo

site

CN

and

Com

pute

d A

reas

Com

paris

on o

f Ana

lysi

s R

esul

ts.x

ls P

age

5 of

13

Sen

g C

reek

Hyd

rolo

gy

An

alys

is

Sce

nari

o 1

Sce

nari

o 2

Sce

nari

o 3

Sce

nari

o 4

Sce

nari

o 5

With

Log

ging

(CN

70

& 73

)W

ithou

t Log

ging

(CN

70)

With

out L

oggi

ng (C

N 7

0)W

ithou

t Log

ging

(CN

70)

With

Log

ging

(CN

70

& 73

)W

ith M

inin

g (C

N 7

5 &

87)

With

Min

ing

(CN

75

& 87

)W

ith R

ecla

imed

Min

ing

(CN

70)

With

out M

inin

g (C

N 7

0)W

ithou

t Min

ing

(CN

70)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Pris

tine

Topo

grap

hy (U

SGS

DEM

Dat

a)Pr

istin

e To

pogr

aphy

(USG

S D

EM D

ata)

Sen

g C

reek

Wat

ersh

ed

Hyd

rolo

gy

An

alys

is

Gag

e

Land

Use

s

SYM

BOL

- ID

- N

AME

0 R

esid

enta

l Are

a - 7

91

Min

ing

Vege

tate

d - 7

52

Min

ing

Unv

eget

ated

- 87

3 G

ood

Woo

ds -

70

2R1C

2R3R

2C3R

4R

3C

4R

5R

4C

5R5C

5bB

5aB

4aB

4bB

3B2B

1B

Sce

nari

o 2

Land

Use

Com

paris

on o

f Ana

lysi

s R

esul

ts.x

ls P

age

6 of

13

Sen

g C

reek

Hyd

rolo

gy

An

alys

is

Sce

nari

o 1

Sce

nari

o 2

Sce

nari

o 3

Sce

nari

o 4

Sce

nari

o 5

With

Log

ging

(CN

70

& 73

)W

ithou

t Log

ging

(CN

70)

With

out L

oggi

ng (C

N 7

0)W

ithou

t Log

ging

(CN

70)

With

Log

ging

(CN

70

& 73

)W

ith M

inin

g (C

N 7

5 &

87)

With

Min

ing

(CN

75

& 87

)W

ith R

ecla

imed

Min

ing

(CN

70)

With

out M

inin

g (C

N 7

0)W

ithou

t Min

ing

(CN

70)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Pris

tine

Topo

grap

hy (U

SGS

DEM

Dat

a)Pr

istin

e To

pogr

aphy

(USG

S D

EM D

ata)

Sen

g C

reek

Wat

ersh

ed

Hyd

rolo

gy

An

alys

is

CN

=71.

1 A

=0.7

2 m

î2

CN

=70.

9 A

=0.7

1 m

î2

CN

=70.

7 A

=1.1

3 m

î2

CN

=71.

2 A

=0.6

0 m

î2

CN

=70.

5 A

=0.8

8 m

î2

CN

=72.

5 A

=0.6

0 m

î2

CN

=73.

9 A

=0.7

2 m

î2

Gag

e

Sce

nari

o 2

Wat

ersh

ed B

ound

arie

san

d C

ompo

site

CN

and

Com

pute

d A

reas

Com

paris

on o

f Ana

lysi

s R

esul

ts.x

ls P

age

7 of

13

Sen

g C

reek

Hyd

rolo

gy

An

alys

is

Sce

nari

o 1

Sce

nari

o 2

Sce

nari

o 3

Sce

nari

o 4

Sce

nari

o 5

With

Log

ging

(CN

70

& 73

)W

ithou

t Log

ging

(CN

70)

With

out L

oggi

ng (C

N 7

0)W

ithou

t Log

ging

(CN

70)

With

Log

ging

(CN

70

& 73

)W

ith M

inin

g (C

N 7

5 &

87)

With

Min

ing

(CN

75

& 87

)W

ith R

ecla

imed

Min

ing

(CN

70)

With

out M

inin

g (C

N 7

0)W

ithou

t Min

ing

(CN

70)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Pris

tine

Topo

grap

hy (U

SGS

DEM

Dat

a)Pr

istin

e To

pogr

aphy

(USG

S D

EM D

ata)

Sen

g C

reek

Wat

ersh

ed

Hyd

rolo

gy

An

alys

is

Gag

e

Land

Use

s

SYM

BOL

- ID

- N

AME

0 R

esid

enta

l Are

a - 7

93

Goo

d W

oods

- 70

2R1C

2R3R

2C3R

4R

3C

4R

5R

4C

5R5C

5bB

5aB

4aB

4bB

3B2B

1B

Sce

nari

o 3

Land

Use

Com

paris

on o

f Ana

lysi

s R

esul

ts.x

ls P

age

8 of

13

Sen

g C

reek

Hyd

rolo

gy

An

alys

is

Sce

nari

o 1

Sce

nari

o 2

Sce

nari

o 3

Sce

nari

o 4

Sce

nari

o 5

With

Log

ging

(CN

70

& 73

)W

ithou

t Log

ging

(CN

70)

With

out L

oggi

ng (C

N 7

0)W

ithou

t Log

ging

(CN

70)

With

Log

ging

(CN

70

& 73

)W

ith M

inin

g (C

N 7

5 &

87)

With

Min

ing

(CN

75

& 87

)W

ith R

ecla

imed

Min

ing

(CN

70)

With

out M

inin

g (C

N 7

0)W

ithou

t Min

ing

(CN

70)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Pris

tine

Topo

grap

hy (U

SGS

DEM

Dat

a)Pr

istin

e To

pogr

aphy

(USG

S D

EM D

ata)

Sen

g C

reek

Wat

ersh

ed

Hyd

rolo

gy

An

alys

is

CN

=71.

1 A

=0.7

2 m

î2

CN

=70.

9 A

=0.7

1 m

î2

CN

=70.

7 A

=1.1

3 m

î2

CN

=70

.5

A=0

.60

mî2

CN

=70.

5 A

=0.8

8 m

î2

CN

=70.

5 A

=0.6

0 m

î2

CN

=70.

5 A

=0.7

2 m

î2

Gag

e

Sce

nari

o 3

Wat

ersh

ed B

ound

arie

san

d C

ompo

site

CN

and

Com

pute

d A

reas

Com

paris

on o

f Ana

lysi

s R

esul

ts.x

ls P

age

9 of

13

Sen

g C

reek

Hyd

rolo

gy

An

alys

is

Sce

nari

o 1

Sce

nari

o 2

Sce

nari

o 3

Sce

nari

o 4

Sce

nari

o 5

With

Log

ging

(CN

70

& 73

)W

ithou

t Log

ging

(CN

70)

With

out L

oggi

ng (C

N 7

0)W

ithou

t Log

ging

(CN

70)

With

Log

ging

(CN

70

& 73

)W

ith M

inin

g (C

N 7

5 &

87)

With

Min

ing

(CN

75

& 87

)W

ith R

ecla

imed

Min

ing

(CN

70)

With

out M

inin

g (C

N 7

0)W

ithou

t Min

ing

(CN

70)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Pris

tine

Topo

grap

hy (U

SGS

DEM

Dat

a)Pr

istin

e To

pogr

aphy

(USG

S D

EM D

ata)

Sen

g C

reek

Wat

ersh

ed

Hyd

rolo

gy

An

alys

is

Gag

e

Land

Use

s

SYM

BOL

- ID

- N

AME

0 R

esid

enta

l Are

a - 7

93

Goo

d W

oods

- 70

2R1C

2R3R

2C3R

4R

3C

4R

5R

4C

5R5C

5bB

5aB

4aB

4bB

3B2B

1B

Sce

nari

o 4

Land

Use

Com

paris

on o

f Ana

lysi

s R

esul

ts.x

ls P

age

10 o

f 13

Sen

g C

reek

Hyd

rolo

gy

An

alys

is

Sce

nari

o 1

Sce

nari

o 2

Sce

nari

o 3

Sce

nari

o 4

Sce

nari

o 5

With

Log

ging

(CN

70

& 73

)W

ithou

t Log

ging

(CN

70)

With

out L

oggi

ng (C

N 7

0)W

ithou

t Log

ging

(CN

70)

With

Log

ging

(CN

70

& 73

)W

ith M

inin

g (C

N 7

5 &

87)

With

Min

ing

(CN

75

& 87

)W

ith R

ecla

imed

Min

ing

(CN

70)

With

out M

inin

g (C

N 7

0)W

ithou

t Min

ing

(CN

70)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Pris

tine

Topo

grap

hy (U

SGS

DEM

Dat

a)Pr

istin

e To

pogr

aphy

(USG

S D

EM D

ata)

Sen

g C

reek

Wat

ersh

ed

Hyd

rolo

gy

An

alys

is CN

=71.

4 A

=0.7

0 m

î2

CN

=71.

0 A

=0.8

4 m

î2

CN

=70.

7 A

=0.9

9 m

î2

CN

=70.

5 A

=0.6

1 m

î2

CN

=70.

5 A

=0.8

6 m

î2

CN

=70.

5 A

=0.5

4 m

î2 C

N=7

0.5

A=0

.97

mî2

Gag

e

Sce

nari

o 4

Wat

ersh

ed B

ound

arie

san

d C

ompo

site

CN

and

Com

pute

d A

reas

Com

paris

on o

f Ana

lysi

s R

esul

ts.x

ls P

age

11 o

f 13

Sen

g C

reek

Hyd

rolo

gy

An

alys

is

Sce

nari

o 1

Sce

nari

o 2

Sce

nari

o 3

Sce

nari

o 4

Sce

nari

o 5

With

Log

ging

(CN

70

& 73

)W

ithou

t Log

ging

(CN

70)

With

out L

oggi

ng (C

N 7

0)W

ithou

t Log

ging

(CN

70)

With

Log

ging

(CN

70

& 73

)W

ith M

inin

g (C

N 7

5 &

87)

With

Min

ing

(CN

75

& 87

)W

ith R

ecla

imed

Min

ing

(CN

70)

With

out M

inin

g (C

N 7

0)W

ithou

t Min

ing

(CN

70)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Pris

tine

Topo

grap

hy (U

SGS

DEM

Dat

a)Pr

istin

e To

pogr

aphy

(USG

S D

EM D

ata)

Sen

g C

reek

Wat

ersh

ed

Hyd

rolo

gy

An

alys

is

Gag

e

Land

Use

s

SYM

BOL

- ID

- N

AME

0

Res

iden

tal A

rea

- 79

3 G

ood

Woo

ds -

704

Pas

t Log

ging

(1 -

5 yr

s) -

73

2R

1C

2R3R

2C3R

4R

3C

4R5R

4C

5R5C

5bB

5aB

4aB

4bB

3B

2B1B

Sce

nari

o 5

Land

Use

Com

paris

on o

f Ana

lysi

s R

esul

ts.x

ls P

age

12 o

f 13

Sen

g C

reek

Hyd

rolo

gy

An

alys

is

Sce

nari

o 1

Sce

nari

o 2

Sce

nari

o 3

Sce

nari

o 4

Sce

nari

o 5

With

Log

ging

(CN

70

& 73

)W

ithou

t Log

ging

(CN

70)

With

out L

oggi

ng (C

N 7

0)W

ithou

t Log

ging

(CN

70)

With

Log

ging

(CN

70

& 73

)W

ith M

inin

g (C

N 7

5 &

87)

With

Min

ing

(CN

75

& 87

)W

ith R

ecla

imed

Min

ing

(CN

70)

With

out M

inin

g (C

N 7

0)W

ithou

t Min

ing

(CN

70)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Pris

tine

Topo

grap

hy (U

SGS

DEM

Dat

a)Pr

istin

e To

pogr

aphy

(USG

S D

EM D

ata)

Sen

g C

reek

Wat

ersh

ed

Hyd

rolo

gy

An

alys

is

Sce

nari

o 5

Wat

ersh

ed B

ound

arie

san

d C

ompo

site

CN

and

Com

pute

d A

reas

CN

=72.

3 A

=0.7

0 m

î2

CN

=71.

8 A

=0.8

4 m

î2

CN

=72.

7 A

=0.9

9 m

î2

CN

=71.

4 A

=0.6

1 m

î2

CN

=73.

5 A

=0.8

6 m

î2

CN

=72.

5 A

=0.5

4 m

î2

CN

=70.

9 A

=0.9

7 m

î2

Gag

e

Com

paris

on o

f Ana

lysi

s R

esul

ts.x

ls P

age

13 o

f 13

July

8, 2

001

Sto

rm E

ven

t in

Sen

g C

reek

0

0.2

0.4

0.6

0.81

1.2

1.4

01

23

45

67

89

1011

1213

1415

1617

1819

2021

2223

24

Tim

e (h

ou

rs)

Intensity (in/hr)

July

8, 2

001

Sto

rm E

vent

for

Sen

g C

reek

0

0.51

1.52

2.53

3.54

4.50:00

1:30

3:00

4:30

6:00

7:30

9:00

10:30

12:00

13:30

15:00

16:30

18:00

19:30

21:00

22:30

24:00

Tim

e (h

r)

Accumulated Rainfall (inches)

N

EW

S

Scr

abbl

e C

reek

Wat

ersh

edD

rain

age

Are

as1B 2a

B2b

B3a

B3b

B4B 5B 6B 7a

B7b

B

Str

eam

s

Prin

ted

Mar

ch 2

7, 2

002

Scr

abb

le C

reek

LID

AR

3D

Vie

w

Wat

ersh

ed D

elin

eati

on

Scr

abb

le C

reek

LID

AR

P

lan

Vie

w

Wat

ersh

ed D

elin

eati

on

Scra

bble

Cre

ek W

ater

shed

Bou

ndar

ies.

1000

010

0020

00Fe

et

SN

EW

Scra

bble

Cre

ek S

tudy

Are

a

Lege

nd

Scra

bble

Scen

ario

1Sc

enar

io 2

Scen

ario

3Sc

enar

io 4

Scen

ario

5C

reek

With

Log

ging

(CN

70

& 73

)W

ithou

t Log

ging

(CN

70)

With

out L

oggi

ng (C

N 7

0)W

ithou

t Log

ging

(CN

70)

With

Log

ging

(CN

70

& 73

)W

ith M

inin

g (C

N 7

5 &

87)

With

Min

ing

(CN

75

& 87

)R

ecla

imed

Min

ing

(CN

70)

With

out M

inin

g (C

N 7

0)W

ithou

t Min

ing

(CN

70)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

(LID

AR D

ata)

Topo

grap

hy w

Min

ing

Pris

tine

Topo

grap

hy (U

SGS

DEM

Dat

a)Pr

istin

e To

pogr

aphy

(USG

S D

EM D

ata)

Out

let N

ode

Even

t25

yr

100

yrEv

ent

25 y

r10

0 yr

Even

t25

yr

100

yrEv

ent

25 y

r10

0 yr

Even

t25

yr

100

yr14

fps

1C20

4537

6051

6519

7035

9549

8016

6327

4538

7918

0232

4245

7318

7734

0547

552C

1803

3621

4926

1738

3515

4808

1426

2004

2848

1533

3041

4254

1586

3143

4368

3C93

818

8625

6892

818

6725

4776

713

2018

6481

816

3422

9482

716

5423

164C

203

395

535

203

395

535

171

336

470

173

341

477

173

341

477

5C33

868

293

233

868

293

227

855

278

527

953

074

727

953

074

76C

134

286

392

134

286

392

113

238

337

112

228

324

112

228

324

7C59

414

8920

3257

114

2219

5847

011

0815

6050

312

4117

4852

513

0718

21

Wat

ersh

ed D

elin

eatio

n an

d B

asin

/ O

utle

t / R

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g N

amin

g

Ga

ge

1C

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B

1B

Prin

ted

on 4

/18/

2002

9:44

AM

WM

S Pe

ak D

isch

arge

Val

ues.

xls

Page

2 o

f 4

Scra

bble

Cre

ek H

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Cre

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0)W

ith L

oggi

ng (C

N 7

0 &

73)

With

Min

ing

(CN

75

& 87

)W

ith M

inin

g (C

N 7

5 &

87)

With

Rec

laim

ed M

inin

g (C

N 7

0)W

ithou

t Min

ing

(CN

70)

With

out M

inin

g (C

N 7

0)To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a )To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a)To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a)Pr

istin

e To

pogr

aphy

(10m

DEM

Dat

a)Pr

istin

e To

pogr

aphy

(10m

DEM

Dat

a)

Scra

bble

Cre

ek

Wat

ersh

ed H

ydro

logy

A

naly

sis

CN

=75.

1 A

=0.6

3 m

î2 C

N=7

4.6

A=0

.25

mî2

CN

=74.

4 A

=0.4

0 m

î2

CN

=73.

4 A

=0.5

7 m

î2

CN

=74.

9 A

=0.4

5 m

î2

CN

=75.

6 A

=0.2

7 m

î2

CN

=71.

0 A

=0.4

3 m

î2

CN

=73.

5 A

=0.4

9 m

î2

CN

=72.

4 A

=0.1

3 m

î2

CN

=71.

0 A

=0.4

3 m

î2

CN

=71.

0 A

=0.4

3 m

î2

CN

=71.

0 A

=0.4

3 m

î2

CN

=73.

4 A

=0.5

6 m

î2

Gag

e

Scen

ario

1 W

ater

shed

Bou

ndar

ies

and

Com

posi

te C

N a

nd C

ompu

ted

Are

as

Com

paris

on o

f Ana

lysi

s R

esul

ts.x

ls P

age

5 of

13

Scra

bble

Cre

ek H

ydro

logy

Ana

lysi

s

Scen

ario

1Sc

enar

io 2

Scen

ario

3Sc

enar

io 4

Scen

ario

5W

ith L

oggi

ng (C

N 7

0 &

73)

With

out L

oggi

ng (C

N 7

0)W

ithou

t Log

ging

(CN

70)

With

out L

oggi

ng (C

N 7

0)W

ith L

oggi

ng (C

N 7

0 &

73)

With

Min

ing

(CN

75

& 87

)W

ith M

inin

g (C

N 7

5 &

87)

With

Rec

laim

ed M

inin

g (C

N 7

0)W

ithou

t Min

ing

(CN

70)

With

out M

inin

g (C

N 7

0)To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a )To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a)To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a)Pr

istin

e To

pogr

aphy

(10m

DEM

Dat

a)Pr

istin

e To

pogr

aphy

(10m

DEM

Dat

a)

Scra

bble

Cre

ek

Wat

ersh

ed H

ydro

logy

A

naly

sis

Gag

e

Land

Use

s

SYM

BOL

- ID

- N

AME

0 R

esid

enta

l Are

a - 7

91

Min

ing

Vege

tate

d - 7

52

Min

ing

Unv

eget

ated

- 87

3 G

ood

Woo

ds -

70

Scen

ario

2 L

and

Use

Com

paris

on o

f Ana

lysi

s R

esul

ts.x

ls P

age

6 of

13

Scra

bble

Cre

ek H

ydro

logy

Ana

lysi

s

Scen

ario

1Sc

enar

io 2

Scen

ario

3Sc

enar

io 4

Scen

ario

5W

ith L

oggi

ng (C

N 7

0 &

73)

With

out L

oggi

ng (C

N 7

0)W

ithou

t Log

ging

(CN

70)

With

out L

oggi

ng (C

N 7

0)W

ith L

oggi

ng (C

N 7

0 &

73)

With

Min

ing

(CN

75

& 87

)W

ith M

inin

g (C

N 7

5 &

87)

With

Rec

laim

ed M

inin

g (C

N 7

0)W

ithou

t Min

ing

(CN

70)

With

out M

inin

g (C

N 7

0)To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a )To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a)To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a)Pr

istin

e To

pogr

aphy

(10m

DEM

Dat

a)Pr

istin

e To

pogr

aphy

(10m

DEM

Dat

a)

Scra

bble

Cre

ek

Wat

ersh

ed H

ydro

logy

A

naly

sis

CN

=75.

1 A

=0.6

3 m

î2 C

N=7

4.6

A=0

.25

mî2

CN

=74.

4 A

=0.4

0 m

î2

CN

=71.

9 A

=0.5

7 m

î2

CN

=73.

7 A

=0.4

5 m

î2

CN

=74.

7 A

=0.2

7 m

î2

CN

=71.

0 A

=0.4

3 m

î2

CN

=70.

7 A

=0.4

9 m

î2

CN

=71.

6 A

=0.1

3 m

î2

CN

=71.

0 A

=0.4

3 m

î2

CN

=71.

0 A

=0.4

3 m

î2

CN

=71.

0 A

=0.4

3 m

î2

CN

=71.

3 A

=0.5

6 m

î2

Gag

e

Scen

ario

2 W

ater

shed

Bou

ndar

ies

and

Com

posi

te C

N a

nd C

ompu

ted

Are

as

Com

paris

on o

f Ana

lysi

s R

esul

ts.x

ls P

age

7 of

13

Scra

bble

Cre

ek H

ydro

logy

Ana

lysi

s

Scen

ario

1Sc

enar

io 2

Scen

ario

3Sc

enar

io 4

Scen

ario

5W

ith L

oggi

ng (C

N 7

0 &

73)

With

out L

oggi

ng (C

N 7

0)W

ithou

t Log

ging

(CN

70)

With

out L

oggi

ng (C

N 7

0)W

ith L

oggi

ng (C

N 7

0 &

73)

With

Min

ing

(CN

75

& 87

)W

ith M

inin

g (C

N 7

5 &

87)

With

Rec

laim

ed M

inin

g (C

N 7

0)W

ithou

t Min

ing

(CN

70)

With

out M

inin

g (C

N 7

0)To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a )To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a)To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a)Pr

istin

e To

pogr

aphy

(10m

DEM

Dat

a)Pr

istin

e To

pogr

aphy

(10m

DEM

Dat

a)

Scra

bble

Cre

ek

Wat

ersh

ed H

ydro

logy

A

naly

sis

Gag

e

Land

Use

s

SYM

BOL

- ID

- N

AME

0 R

esid

enta

l Are

a - 7

93

Goo

d W

oods

- 70

Scen

ario

3 L

and

Use

Com

paris

on o

f Ana

lysi

s R

esul

ts.x

ls P

age

8 of

13

Scra

bble

Cre

ek H

ydro

logy

Ana

lysi

s

Scen

ario

1Sc

enar

io 2

Scen

ario

3Sc

enar

io 4

Scen

ario

5W

ith L

oggi

ng (C

N 7

0 &

73)

With

out L

oggi

ng (C

N 7

0)W

ithou

t Log

ging

(CN

70)

With

out L

oggi

ng (C

N 7

0)W

ith L

oggi

ng (C

N 7

0 &

73)

With

Min

ing

(CN

75

& 87

)W

ith M

inin

g (C

N 7

5 &

87)

With

Rec

laim

ed M

inin

g (C

N 7

0)W

ithou

t Min

ing

(CN

70)

With

out M

inin

g (C

N 7

0)To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a )To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a)To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a)Pr

istin

e To

pogr

aphy

(10m

DEM

Dat

a)Pr

istin

e To

pogr

aphy

(10m

DEM

Dat

a)

Scra

bble

Cre

ek

Wat

ersh

ed H

ydro

logy

A

naly

sis

CN

=70.

5 A

=0.6

3 m

î2 C

N=7

0.5

A=0

.25

mî2

CN

=70.

5 A

=0.4

0 m

î2

CN

=70.

5 A

=0.5

7 m

î2

CN

=70.

6 A

=0.4

5 m

î2

CN

=70.

5 A

=0.2

7 m

î2

CN

=70.

6 A

=0.4

3 m

î2

CN

=70.

7 A

=0.4

9 m

î2

CN

=71.

6 A

=0.1

3 m

î2

CN

=70.

6 A

=0.4

3 m

î2

CN

=70.

6 A

=0.4

3 m

î2

CN

=70.

6 A

=0.4

3 m

î2

CN

=71.

3 A

=0.5

6 m

î2

Gag

e

Scen

ario

3 W

ater

shed

Bou

ndar

ies

and

Com

posi

te C

N a

nd C

ompu

ted

Are

as

Com

paris

on o

f Ana

lysi

s R

esul

ts.x

ls P

age

9 of

13

Scra

bble

Cre

ek H

ydro

logy

Ana

lysi

s

Scen

ario

1Sc

enar

io 2

Scen

ario

3Sc

enar

io 4

Scen

ario

5W

ith L

oggi

ng (C

N 7

0 &

73)

With

out L

oggi

ng (C

N 7

0)W

ithou

t Log

ging

(CN

70)

With

out L

oggi

ng (C

N 7

0)W

ith L

oggi

ng (C

N 7

0 &

73)

With

Min

ing

(CN

75

& 87

)W

ith M

inin

g (C

N 7

5 &

87)

With

Rec

laim

ed M

inin

g (C

N 7

0)W

ithou

t Min

ing

(CN

70)

With

out M

inin

g (C

N 7

0)To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a )To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a)To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a)Pr

istin

e To

pogr

aphy

(10m

DEM

Dat

a)Pr

istin

e To

pogr

aphy

(10m

DEM

Dat

a)

Scra

bble

Cre

ek

Wat

ersh

ed H

ydro

logy

A

naly

sis

Gag

e

Land

Use

s

SYM

BOL

- ID

- N

AME

0 R

esid

enta

l Are

a - 7

93

Goo

d W

oods

- 70

Scen

ario

4 L

and

Use

Com

paris

on o

f Ana

lysi

s R

esul

ts.x

ls P

age

10 o

f 13

Scra

bble

Cre

ek H

ydro

logy

Ana

lysi

s

Scen

ario

1Sc

enar

io 2

Scen

ario

3Sc

enar

io 4

Scen

ario

5W

ith L

oggi

ng (C

N 7

0 &

73)

With

out L

oggi

ng (C

N 7

0)W

ithou

t Log

ging

(CN

70)

With

out L

oggi

ng (C

N 7

0)W

ith L

oggi

ng (C

N 7

0 &

73)

With

Min

ing

(CN

75

& 87

)W

ith M

inin

g (C

N 7

5 &

87)

With

Rec

laim

ed M

inin

g (C

N 7

0)W

ithou

t Min

ing

(CN

70)

With

out M

inin

g (C

N 7

0)To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a )To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a)To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a)Pr

istin

e To

pogr

aphy

(10m

DEM

Dat

a)Pr

istin

e To

pogr

aphy

(10m

DEM

Dat

a)

Scra

bble

Cre

ek

Wat

ersh

ed H

ydro

logy

A

naly

sis

CN

=70.

5 A

=0.6

4 m

î2 CN

=70.

5 A

=0.2

5 m

î2

CN

=70.

5 A

=0.4

1 m

î2

CN

=70.

5 A

=0.5

6 m

î2

CN

=70.

6 A

=0.4

4 m

î2

CN

=70.

5 A

=0.2

7 m

î2

CN

=70.

6 A

=0.4

1 m

î2

CN

=70.

7 A

=0.4

8 m

î2

CN

=71.

7 A

=0.1

2 m

î2

CN

=71.

4 A

=0.6

5 m

î2

Gag

e

Scen

ario

4 W

ater

shed

Bou

ndar

ies

and

Com

posi

te C

N a

nd C

ompu

ted

Are

as

Com

paris

on o

f Ana

lysi

s R

esul

ts.x

ls P

age

11 o

f 13

Scra

bble

Cre

ek H

ydro

logy

Ana

lysi

s

Scen

ario

1Sc

enar

io 2

Scen

ario

3Sc

enar

io 4

Scen

ario

5W

ith L

oggi

ng (C

N 7

0 &

73)

With

out L

oggi

ng (C

N 7

0)W

ithou

t Log

ging

(CN

70)

With

out L

oggi

ng (C

N 7

0)W

ith L

oggi

ng (C

N 7

0 &

73)

With

Min

ing

(CN

75

& 87

)W

ith M

inin

g (C

N 7

5 &

87)

With

Rec

laim

ed M

inin

g (C

N 7

0)W

ithou

t Min

ing

(CN

70)

With

out M

inin

g (C

N 7

0)To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a )To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a)To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a)Pr

istin

e To

pogr

aphy

(10m

DEM

Dat

a)Pr

istin

e To

pogr

aphy

(10m

DEM

Dat

a)

Scra

bble

Cre

ek

Wat

ersh

ed H

ydro

logy

A

naly

sis

Scen

ario

5 L

and

Use Gag

e

Land

Use

s

SYM

BOL

- ID

- N

AME

0 R

esid

enta

l Are

a - 7

93

Goo

d W

oods

- 70

4 P

ast L

oggi

ng (1

- 5

yrs)

- 73

5 B

rush

- 77

Com

paris

on o

f Ana

lysi

s R

esul

ts.x

ls P

age

12 o

f 13

Scra

bble

Cre

ek H

ydro

logy

Ana

lysi

s

Scen

ario

1Sc

enar

io 2

Scen

ario

3Sc

enar

io 4

Scen

ario

5W

ith L

oggi

ng (C

N 7

0 &

73)

With

out L

oggi

ng (C

N 7

0)W

ithou

t Log

ging

(CN

70)

With

out L

oggi

ng (C

N 7

0)W

ith L

oggi

ng (C

N 7

0 &

73)

With

Min

ing

(CN

75

& 87

)W

ith M

inin

g (C

N 7

5 &

87)

With

Rec

laim

ed M

inin

g (C

N 7

0)W

ithou

t Min

ing

(CN

70)

With

out M

inin

g (C

N 7

0)To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a )To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a)To

pogr

aphy

w M

inin

g (L

IDAR

Dat

a)Pr

istin

e To

pogr

aphy

(10m

DEM

Dat

a)Pr

istin

e To

pogr

aphy

(10m

DEM

Dat

a)

Scra

bble

Cre

ek

Wat

ersh

ed H

ydro

logy

A

naly

sis

CN

=70.

5 A

=0.6

4 m

î2 C

N=7

0.5

A=0

.25

mi2̂

CN

=70.

5 A

=0.4

1 m

i2̂

CN

=72.

1 A

=0.5

6 m

î2

CN

=71.

8 A

=0.4

4 m

i2̂

CN

=71.

4 A

=0.2

7 m

î2

CN

=70.

6 A

=0.4

1 m

î2

CN

=73.

5 A

=0.4

8 m

i2̂

CN

=72.

4 A

=0.1

2 m

i2̂

CN

=73.

1 A

=0.6

5 m

î2

Gag

e

Scen

ario

5 W

ater

shed

Bou

ndar

ies

and

Com

posi

te C

N a

nd C

ompu

ted

Are

as

Com

paris

on o

f Ana

lysi

s R

esul

ts.x

ls P

age

13 o

f 13

July

8, 2

001

Sto

rm E

ven

t in

Scr

abb

le C

reek

0

0.2

0.4

0.6

0.81

1.2

1.4

01

23

45

67

89

1011

1213

1415

1617

1819

2021

2223

24

Tim

e (h

ou

rs)

Intensi