7 0 t 2 n e m l 6 t a r 1 a c r l p e p e i e r p t p d r ... · l k t e s t b a l l l o c a t i o...

25
1 PD-Sw006_fn EarthTech EarthTech Miami Miami - - Dade Water and Sewer Dade Water and Sewer Department Department s s Comprehensive Lateral Comprehensive Lateral Investigation Program (CLIP) Investigation Program (CLIP) Florida Water Resources Conference April 16 April 16 th th , 2007 , 2007 Rodney Lovett Rodney Lovett Miami Miami - - Dade Dade Water and Sewer Department Water and Sewer Department James T. Cowgill, P.E. James T. Cowgill, P.E. Hazen and Sawyer, P.C. Hazen and Sawyer, P.C. Franklin Torrealba Franklin Torrealba EarthTech EarthTech

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1

PD-Sw006_fn

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ram

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PD-Sw006_fn

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200

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250

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9

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Lat

eral

Pilo

t Pro

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Pur

pose

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10

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Tech

Lat

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ral

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ntD

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ts

Yes

11

PD-Sw006_fn

Ear

thTe

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Tech

Bas

in S

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tion

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teri

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rite

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sign

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ravi

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12

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a C

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Pur

pose

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ata

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ross

-sec

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of b

asin

s

13

PD-Sw006_fn

Ear

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%6,

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pons

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ding

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2.7%

252

NO

–R

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den

ying

pro

pert

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cess

68.4

%6,

291

YE

S –

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pons

es g

rant

ing

prop

erty

acc

ess

100%

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otifi

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tter

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al

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ers

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mat

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96%

of r

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sitiv

e

14

PD-Sw006_fn

Ear

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Tech

Dep

th, s

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6

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test

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all t

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rod

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spec

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ifica

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nit P

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sU

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s

15

PD-Sw006_fn

Ear

thTe

chE

arth

Tech

Sum

mar

y of

Tes

t Res

ults

Sum

mar

y of

Tes

t Res

ults

30%

2,05

9C

ND

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649

Fail

55%

3,76

8P

ass

Priv

ate

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e

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1,79

1Fa

il64

%4,

341

Pas

s

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lic S

ide

6%38

5N

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1C

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Late

rals

Tes

ted

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cent

Per

cent

Num

ber

Num

ber

Line

s Te

sted

Line

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sted

16

PD-Sw006_fn

Ear

thTe

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Tech

Rep

air

Spec

ifica

tion

Rep

air

Spec

ifica

tion

––U

nit P

rice

Item

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nit P

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Item

s

CIP

mai

nlin

e / l

ater

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pair

syst

emG

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roup

C

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ed-in

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ce (C

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B

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avat

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irs a

nd la

tera

l rep

lace

men

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roup

AG

roup

A

17

PD-Sw006_fn

Ear

thTe

chE

arth

Tech

Lat

eral

Rep

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Ass

ignm

ents

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eral

Rep

air

Ass

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ents

1,22

2To

tal I

tem

s to

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air

52C

IP L

iner

(ME

TRO

/TR

IPLE

X)

102

CIP

Mai

nlin

e (M

ETR

O/L

INK

)

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ured

-In-P

lace

(ME

TRO

/ES

G)

971

Dig

and

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lace

(MS

WA

SD

)

Num

ber

Num

ber

Item

Item

18

PD-Sw006_fn

Ear

thTe

chE

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Tech

Lat

eral

Pilo

t Pro

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Sta

tus

Lat

eral

Pilo

t Pro

gram

Sta

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020406080100

120

160

140

180

Bas

ins

Sel

ecte

d

Percent Complete

Mai

nLi

neS

SE

S

Mai

nLi

neR

epai

rs

“Bef

ore”

Rai

nE

vent

Late

rals

Test

edR

epai

rsC

ompl

ete

“Aft

er”

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nE

vent

5252

52

3837

2

47

30 B

asin

Goa

l

52 B

asin

s

19

PD-Sw006_fn

Ear

thTe

chE

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Tech

Bas

in M

ainl

ine

GPM

Red

uctio

nB

asin

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nlin

e G

PM R

educ

tion

20

PD-Sw006_fn

Ear

thTe

chE

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Tech

Rai

n G

auge

Pilo

t Sta

tion

Loc

atio

nsPi

lot S

tatio

n L

ocat

ions

�B

asin

Loc

atio

ns (5

2)�

Rai

n G

auge

s (1

5)�

Gro

und

Wat

er G

auge

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3)

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p S

tatio

ns

Gro

undw

ater

Gau

ge

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p S

tatio

n B

asin

Maj

or R

oads

21

PD-Sw006_fn

Ear

thTe

chE

arth

Tech

Flow

R

educ

tion

Com

pari

son

Bas

in 8

0

Average Hourly Flow (gpm)

200

400

600

800

1000

1200

Flow

Sep

t. 20

01 P

re-M

ailin

e

Flow

May

200

6 P

re-C

LIP

Flow

Sep

t. 20

06 P

ost-C

LIP

Ave

rage

Hou

rly

Flow

Rai

nfal

l Sep

t 200

1 P

re-M

ainl

ine

R

epai

rsR

ainf

all M

ay 2

006

Pre

-CLI

P

Rep

airs

Rai

nfal

l Sep

t 200

6 P

ost-

CLI

P

Rep

airs

Rai

nfal

l

Rainfall (inches)

012345

22

PD-Sw006_fn

Ear

thTe

chE

arth

Tech

Flow

R

educ

tion

Com

pari

son

Bas

in 1

94

Average Daily Flow (gpm)

0

100

200

300

400

Flow

Sep

t. 20

01 P

re-M

ailin

e

Flow

May

200

6 P

re-C

LIP

Flow

Sep

t. 20

06 P

ost-

CLI

P

Ave

rage

Hou

rly

Flow

Rai

nfal

l

Rainfall (inches)

Rai

nfal

l Sep

t 200

1 P

re-M

ainl

ine

R

epai

rsR

ainf

all M

ay 2

006

Pre

-CLI

P

Rep

airs

Rai

nfal

l Sep

t 200

6 P

ost-

CLI

P

Rep

airs

012345

23

PD-Sw006_fn

Ear

thTe

chE

arth

Tech

CL

IP P

eak

Fact

or R

educ

tion

CL

IP P

eak

Fact

or R

educ

tion

=19

2 gp

m

1,14

7 gp

m

Bas

in 8

0:

5.97

=In

itial

PF

=98

gpm

308

gpm

2.03

=Fi

nal P

F

=98

gpm

399

gpm

Bas

in 1

95:

4.07

=In

itial

PF

=30

gpm

106

gpm

3.53

=Fi

nal P

F

Pea

k Fl

ow

Red

uctio

n

73%

73%

24

PD-Sw006_fn

Ear

thTe

chE

arth

Tech

Lat

eral

Pilo

t Pro

gram

Res

ults

Lat

eral

Pilo

t Pro

gram

Res

ults

Pro

gram

is 1

/8th

the

Cos

t of A

ltern

ativ

e

0.03

6

0.01

2

0.02

4

gpm

gp

m

rem

oved

/re

mov

ed/

foot

foot

$8,6

45

$1,0

11

$2,3

08

$362

$/gp

m

$/gp

m

rem

oved

rem

oved

$36.

38

$27.

70

$8.6

8

$/fo

ot$/

foot

Pum

p an

d Tr

eat A

ltern

ativ

e

Tota

l Pro

gram

Late

ral P

rogr

am

Mai

nlin

e P

rogr

am

Pro

gram

Pro

gram

25

PD-Sw006_fn

Ear

thTe

chE

arth

Tech

Rec

omm

enda

tions

:R

ecom

men

datio

ns:

1.C

olle

ct d

ata

durin

g ra

in e

vent

for r

emai

ning

bas

ins

2.Id

entif

y hi

gh R

DII

basi

ns

3.C

ompl

ete

late

ral p

rogr

am fo

r hig

h R

DII

basi

ns

4.C

ontin

ue la

tera

l pro

gram

at a

mai

nten

ance

leve

l at

hig

h R

DII

basi

ns