waste discharge requirements and water quality ......0 0.25 0.5 1 miles california state plane...

ATTACHMENT A

Waste Discharge Requirements and Water Quality Certification for the

South Bay Salt Pond Restoration Project, Phase 2

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Fig1_

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_Pha

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Figure 1SBSP Phase 2 Project SitesSouth Bay Salt Pond Restoration Project

!

A20

!

S5

!

R5 R4

R3

A19A21

A2WA1

A8S

A8

237

85

262

114

109

84

82

101

280

680

880

0 1 20.5 MilesCALIFORNIA STATE PLANE COORDINATE SYSTEM ZONE IIINORTH AMERICAN DATUM OF 1983NORTH AMERICAN VERTICAL DATUM OF 1988IMAGERY Esri

Ravenswood

AlvisoMOUNTAIN VIEW PONDS

AlvisoA8 PONDS

AlvisoISLAND PONDS

Phase 2 Project Area7.5-minute USGS Quadrangle Boundary

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Figure 2aSBSP Phase 2 Project Sites

Alviso Island PondsSouth Bay Salt Pond Restoration Project

MountainView

Quadrangle

MilpitasQuadrangle

A19

A21A20

0 0.5 10.25 MilesCALIFORNIA STATE PLANE COORDINATE SYSTEM ZONE IIINORTH AMERICAN DATUM OF 1983NORTH AMERICAN VERTICAL DATUM OF 1988BASEMAP USGS Topographic Basemap


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Figure 2bSBSP Phase 2 Project Sites

Alviso A8 PondsSouth Bay Salt Pond Restoration Project

Mountain ViewQuadrangle

MilpitasQuadrangle

A8S

A8



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Figure 2cSBSP Phase 2 Project Sites

Alviso Mt. View PondsSouth Bay Salt Pond Restoration Project

Mountain ViewQuadrangle

A2W

A1



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Figure 2dSBSP Phase 2 Project Sites

Ravenswood PondsSouth Bay Salt Pond Restoration Project

RedwoodPoint

Quadrangle

PaloAlto

Quadrangle

R4

R3S5R5


Coyote Creek

ActiveLandfill

Mud Slough

D i x onLand i ng

R d

A19265 ACRES

A21150 ACRES A20

65 ACRES

Figure 3Alviso Island Ponds

0 1,000 2,000500 FeetCALIFORNIA STATE PLANE COORDINATE SYSTEM ZONE IIINORTH AMERICAN DATUM OF 1983NORTH AMERICAN VERTICAL DATUM OF 1988IMAGERY Esri

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Proposed breach Existing breach RailroadExisting trail

Removed leveeLowered levee

Tidal marshPond boundaryExpand existing breach

South Bay Salt Pond Restoration Project

GuadalupeSlough

AlvisoSlough

Guadalupe River

San Tomas Aquino CreekBaylands CommunityPark

Ta y l o r S t

E l i z a b e t h S t

Hope

St

C a t h e r i n e S t Wi l so n

W a y

Liber

ty S t

E lDo ra doSt

Wa ba s h S t

Carl Rd

Pac i f i c A v e

S t a te

S t

E s sex S tA r c he r

S t

Mills St

Mi c h i ga n

A v e

Spreckles Ave

Gold

St

Trinity ParkDrArchangel Dr

S u n R i s e D r

M o f f a t S t

N1St St

Great Am erica Pky

GoldSt

Lafayette St

E Caribbean Dr

237

A8S160 ACRES

A8410 ACRES

Figure 4Alviso A8 Ponds

] [ Existing reversible armored notch

RailroadExisting trailPond boundary

Habitat Transition ZoneLEGEND


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Mountain

View

Sloug

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Steven

sCr

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SailingLake

DogPark

GolfCourse

Palo AltoFlood Basin

Mountain ViewShoreline Park

(CLOSED LANDFILL)

StevensCreekMarsh

Perm

anen

teCre

ek

SanFrancisco

Bay

MountainView

Marsh

Whisman

Slough

Coast CaseyForebay

C a s e y A v e

Corporation Way

Brode

rick W

ay

N

Sho re l i n e

B l v d

AB1

A2E

A2W435 ACRES

A1275 ACRES

Te r m i n a l B l v d

Raise & improve PG&E access boardwalk.Raise concrete footing of PG&E towers.

Improve levee as necessary,to maintain PG&E access

Construct new PG&Eaccess boardwalk

Figure 5Alviso-Mountain View Ponds

Existing control gateProposed breach

( ) Proposed armored breach (two sides)

Bridge

PG&E turnaroundViewing platform

PG&E towerPG&E power linePhase 2 trailExisting trail

Tidal marshLevee ImprovementLevee Lowering

Habitat Transition ZoneHabitat IslandPond Boundary

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Ravenswood Slough

All-American

Canal

Flood

Sloug

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Bedwell Bayfront Park(CLOSED LANDFILL)

GrecoIsland

To Dumbarton Bridge

SanFrancisco

Bay

Fence BoundingPhase 2 Trail

S57 ACRES

Je f fe rs on C t

C o n s t i t u t i o nD r

Chr y s

l e rDr

Haven Ave

J e f f e r s o n D r

C h i l c o S t

Net w

ork

C i r

In d e p e n d e n c e D r

Boha

nnon

D r

Hami lt on Ave

University Ave

114

84

84

101

Cargill pipelineand 10-ft wide feeownership strip

Fence

Gate & Sign

Gate & Sign

C o m m o n w e a l t h D r

Mars

h

R d

R4295 ACRES

R3270 ACRES

S5 30 ACRES

R5 30 ACRES

Figure 6Ravenswood Ponds

Proposed breach

Proposed water control structure

Viewing platform

! Existing viewing platform

RailroadExisting trailPhase 2 trail

Cargill pipelineFenceLevee Improvement

Levee LoweringLevee RemovalPilot Channel

Habitat Transition ZoneHabitat IslandDitchblock

Tidal marshManaged pondPond boundary

LEGEND


*Pending property rights/easements

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280

80

580

980

238

205

680

5

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101

101

82

82

13

24

120

41

87

99

152

92

84

17

85

1

35

M a r i nCo un t y

M e r c e dC o u n t y

C o n t r a C o s t a C o u n t y

A l a m e d a C o u n t y

S a n J o a q u i n C o u n t y

S a n M a t e oC o u n t y

S a n t a C l a r a C o u n t y

S a n t a C r u z C o u n t y

S t a n i s l a u s C o u n t y

Henry W.Coe SP

0 5 102.5 Miles

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FIGURE 7HUC-8 Watershed Boundaries

Project AreasHUC-8 Watershed

RavenswoodAlviso Island

Alviso A8Alviso

Mountain View

SAN FRANCISCO BAY WATERSHED

COYOTE WATERSHED

Watershed source: Natural Resources Conservation Service


D i x o n L a n d i n g R d

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124 5

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A19265 ACRES

A21150 ACRES A20

65 ACRES

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Figure 8a

High Tide LineMean High Water LineStudy Area

Wetland Habitat, 301.59 acresOpen Water Habitat, 386.49 acresUpland Habitat, 27.63 acres

Cut ImpactsFill Impacts

Impacts to Wetlands and Waters of the StateAlviso Island Ponds



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E l i z a b e t h S t

Hope

St

C a t h e r i n e S t W i l s o n

W a y

Los Esteros Rd

Liber

t y S t

S p r e ck l e s

A v e

G r a n d

B l v d

ElDo

rado

St

Liberty Ct

S t a te

S t

Pa c i f i c

A v e

E s sex S tA r c he r

S t

M i l l s S t

H o p p e

Wa ba s h

S t

N o r t ech

P ky

Mi c h i ga n

A v e

C a r lR d

Gold

St

T r in it y Pa rkDr

D is k

D r

A rc ha nge l Dr

S u n R i s e D r

Scho

ol

S t

M o f f a t S tN 1St St

Great America Pky

E Taylor St

237

A8S160 ACRES

A8410 ACRES

21

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Figure 8b




Impacts to Wetlands and Waters of the StateAlviso A8 Ponds



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NS h o r e l i n e

B l v d

SanA

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Rd

A2W435 ACRES

A1275 ACRES

C1 115 ACRES

30

33

28

25

23

24

22

34

32

32

29

27

2631 (Typical)

Te r m i n a l B l v d

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Figure 8c




Impacts to Wetlands and Waters of the StateAlviso Mt. View Ponds



LEGEND

C o n s t i t u t i o n D r

Chr ys

le rD r

Chi l c

o S t

H a v e n A v e

Bohan

nonDr

J e f f e r s o nD r

S c o t tD r

N e t w o r k C i r

In d e pe n d en c e D r

University Ave

8484

114

101Commonwealth Dr

Mar s

h

R d

R4295 ACRES

R3270 ACRESS5

30 ACRES

R530 ACRES

38

45 39

37

42

40

44

36

35

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4146

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_Impa

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Figure 8d




Impacts to Wetlands and Waters of the StateRavenswood Ponds



LEGEND

waste discharge requirements and water quality ......0 0.25 0.5 1 miles california state plane...

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