Public Hearing and Possible Vote on the South Bay ... · aiming to achieve the primary project...
Transcript of Public Hearing and Possible Vote on the South Bay ... · aiming to achieve the primary project...
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H. T. HARVEY & ASSOCIATES Exhibit A Vicinity Map
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USAGE & USFWS Shoreline Project Ecological Consultants BCDC Application C2015.006.01
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Pond Restoration
Reach 2-3 Project Boundary Phase I
Reach -4-5 Project Boundary - Phase II
Soil Stockpile Boundary Phase Ill
Jurisdlctlonal lmpacb (Reach l)
Ecotone Habitat of Levee
II Ponds A9 / Al0 / All 2027
Ill Ponds A13 / A14 / AlS 2032
Phase Location Year
Reach 1 2018
Reach2&3 2019
Reach4&5 2020-2021
I Ponds A12 / A18 2022
H. T. HARVEY & ASSOCIATES Exhibit B Shoreline Project Phases Ecological Consultants USACE & USFWS Shoreline Project
BCDC Application C2015.006.01 1
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Jurisdictional Impacts
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BCDC Jurisdictional Catagorles
-Bay
-·say/Salt Pond
Salt Pond Salt Pond/Managed Wetland
-CZMAOther 100 foot Shore�ne Band
� Ecotone/Habitat Portion of Levee Flood Control Portion of Levee
H. T. HARVEY & ASSOCIATES Exhibit C BCDC Jurisdiction
Ecological Consultants USACE & USFWS Shoreline Project
BCDC Application C2105.006.01
Legend r··•--,. L •••• J Project Boundary (157.31 ac)
Exhibit D Project Site and Aerial Photograph H. T. HARVEY & ASSOCIATES
USAGE & USFWS Shoreline Project Ecological Consultants BCDC Application C2015.006.01
Jurisdiction
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LEGEND
D Reoch I Project BouncJc1ry (4�i.86 etc) Reocl 1 2 Project Bouncirny
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[7,7� 100 fi Sho1eli11e Bor:d00CL-c:.-�J JURISDICTIONAL IMPACTS
Ecotone Portion
�] Sort Pond (29.2-1 oc) � Shoreline Bond (0.74 oc)00Im CZMA Other (0.07 oc)00FRM Levee Portion
Solt l'o,�cl (7 76 oc)0013oy (0,22 ClC) Srwreline Rand (0.74 oc) C'M,\ Othe1· (2 -12 oc)00
Permanent Construction Easement
� Solt f'ond (0 23 oc)00Sho1eline Bond (0.07 ocJ00
,---_! __!GM.", Other (1.19 oc)00Temporary Construction Easement
� Soii Pond (0.23 oc) S1,oreline Bond (0.02 oc) UM!\ Other (1.18 uc)
Excavation Portion
w� Solt Pond ( 1,29 oc)00CZMI\ Other (0.61 oc)
Ecological Consultants H. T. HARVEY & ASSOCIATES
Exhibit E Reach I Levee and Ecotone
USACE & USFWS Shoreline Project00BCDC Application C2015,006 0100
MIDOLEANO HIGH MARSH
MLLW Mn M
TIDAL
MUDFLAT
LEVEE
HTL CREST
SALINA SEASONAL
WETLAND
Exhibit F Shoreline Project Levee
H.T. HARVEY & ASSOCIATES SOUTH BAY SHORELINE PROJECT TRANSfflON ZONE-TYPICAL CROSS SECllON
USACE & USFWS SHORELINE PROJECT
BCDC Application C2015.008.0l
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Tidal Middle and Mudflat High Marsh
MHW I 50 Year HTL Levee (9.58') 1(10.73') Crest
1----------- Alkalai Meadow Low Marah
Salina Seasonal
Wetland
Note: All elevations are in ft NAVDBB
H.T. HARVEY & ASSOCIATES Exhibit G 100 Years Projection, High Sea Level Rise Scenario Ecological Consultants
USACE & USFWS Shoreline Project BCDC Application C2015.006.01
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' C:=J Pllase I Shoreline Study Area
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A19 A21 A20
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Existing Bench
Existing Observation Platfonn
Pr oposed Location for Observation Plal!ilrrn or Interpretive Signs
Trails
-SFBayTrail
- Guadalupe Trail
- Other Existing TraHs in Study
1 -*Proposed Bay Trail Future Reaches 9, 98, and 7A
-Alviso North WPCP South Levee Aligrwnent
Proposed Shoreline Phase I Trails
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:A 1,000
---=====::iMeters 0 500
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0 3,000
Souroes: "San Jose Alviso Slough Pedeelrian Bridge Fea.siblity Study; NAJP 2010; B;iy Trall• • http;//www.baytra,l.0IJII (Aooessad 2014)
A11 A13
Exhibit H. Likely future trail alignment after completion of all phases of the Shoreline project.
EXHIBIT I
Environmental Impact Documentation
CEQA Documentation
The State Clearinghouse Number is 2006012020. A Notice of Preparation was completed in September 2014.
The Draft Environmental Impact Report was completed in December 2014. The Final Environmental Impact
Report was completed in September 2015. The EIR was certified on March 22, 2016. The CEQA lead agency
is the Santa Clara Valley Water District and the contact is Michael Martin, who can be reached at (408) 630-
3095.
Appendix G is the Draft Integrated EIS/EIR (HDR 2014). Below is a brief summary of this document in less
than 10 pages. The following summary is excerpted from the CEQA Summary section of the document, from
pages CS-1 to CS-11.
CS CEQA Summary
CS-1 Summary
This document includes a draft Environmental Impact Report (EIR) analyzing the
environmental effects of the Shoreline Phase I Project. The project would provide tidal flood
protection between Coyote Creek and the Guadalupe River, allow for the restoration of
approximately 2,000 acres of former salt ponds to tidal marsh, and recreational features.
This EIR has been prepared in compliance with the California Environmental Quality Act
(CEQA), to provide an objective analysis to be used by the CEQA lead agency (the Santa
Clara Valley Water District), as well as other agencies and the public, in their considerations
regarding the implementation, rejection, or modification of the Project as proposed. The EIR
itself does not determine whether the Project will be implemented or not; it only serves as an
informational document in the local planning and decision-making process. The purpose of
the draft EIR process is to develop and assess a recommended plan and alternatives for the
Project and to avoid and mitigate significant adverse effects on environmental resources, while
aiming to achieve the primary project objectives.
CS-2 Proposed Project
The SCVWD's preferred alternative, which is the Locally Preferred Project (Alternative 3� would include engineered levees along the western and northern outer levees of the New
Chicago Marsh along the existing margins of Ponds A12, A13, and A16 (Alviso North
alignment) and follow the Water Pollution Control Plant (WPCP) levee that runs west to east
in a stair-step pattern along the north border (WPCP South ali ment) to protect against the gn
1percent tidal event with anticipated sea level rise; a tide gate across Artesian Slough;
restoration of Ponds A9, A10, Al 1, A12, A13, A14, A15, and A18; a transition ha�itat slope
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EXHIBIT I
of 30:1 in Ponds A12 and A18; and multi-use trails on top of the new proposed flood risk
management levee with connection to the Bay Trail network, viewing platforms and benches,
and trail upgrades to be made to an existing segment of the Bay Trail system along State Route
237. The flood protection components would be constructed between 2017 and 2020.
Restoration of the ponds and recreation elements would take place between 2020 and 2031
with monitoring and adaptive management occurring throughout the period.
CS-4 Unavoidable Adverse Impacts
Chapter 4 Existing and Future Conditions / Affected Environment, Environmental
Consequences, and Mitigation Measures describes the potentially significant project-related
effects on the built and natural environments. The analyses in Chapter 4 identify a number of
potentially significant effects associated with the action alternatives; most of those effects
could be reduced to a less-than-significant level with the application of mitigation. The action
· alternatives would result in the following unavoidable adverse effects:
• Incompatibility with the New Chicago Marsh Water Management Plan (Section
4.3 Land Use) -Alternative 5 only.
• Loss / Disruption of Marsh Habitat in New Chicago Marsh (Section 4.7 Terrestrial
Biological Resources):
• Levee bisecting New Chicago Marsh effect on wildlife movement and
habitat connectivity -Alternative 4 only
• Levee alignment leaving all/part of New Chicago Marsh subject to tidal
flooding effect on population and habitat trends - project and cumulative
impact for Alternatives 4 and 5
• Incompatible with biological components of New Chicago Marsh Water
Management Plan -Alternatives 4 and 5
• Violate Air Quality Standard for NOx and ROG (Section 4.10, Air Quality) -All
action alternatives
• Short-term negative effect on visual character (Section 4.12, Aesthetics) -
Alternatives 4 and 5
• Long-term negative effect on visual character from Alviso (Section 4.12, Aesthetics)
- project and cumulative impact for Alternatives ·4 and 5
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• Substantial adverse effect to the Alviso Salt Ponds Historic Landscape (Section
4.15, Cultural Resources) - project and cumulative impact for all action alternatives
• Cumulative loss of pond habitat used by pond-specialist bird species (Section 4. 7
Terrestrial Biological Resources) - all action alternatives
• Cumulative temporary increase in noise levels (Section 4.13, Noise) - all action
alternatives
CS-5 Potential Areas of Controversy
The loss of pond habitats due to the creation of tidal marsh was extensively debated during
the five year programmatic planning effort of the South Bay Salt Pond Restoration Project
(2003-2008). The SBSP Restoration Project stated that the preferred alternative was up to 90%
of the project area be restored to tidal marsh in order to make up for the overwhelming loss
of the historic tidal wetland resources. However, the project also stated that several strategies
would be incorporated into the project to address impacts to the pond-specialist species. The
first major strategy is to enhance a carefully selected group of existing ponds to improve their
productivity, creating what are called "enhanced managed ponds". These are ponds that have
lower salinity levels, better ability to manage water levels and flows with new water control
structures, as well as islands for roosting and nesting. The second strategy for the SBSP
Restoration Project to prevent significant impacts to pond species is the Adaptive
Management process. Conversion of ponds to tidal wetlands will happen over time, in phases,
with monitoring and applied studies being incorporated into the process. Based on these
results, if undesired impacts appear, then corrective action would be taken or, possibly, the
conversion of ponds to tidal wetlands would stop. Since the Shoreline Study is closely
coordinated with the SBSP Restoration Project planning effort, a similar approach was
adopted to address the impacts of converting pond habitats to tidal wetlands. The ecosystem
restoration actions will be implemented in phases with monitoring and close integration with
the Adaptive Management Program of the SBSP Restoration Project.
CS-6 Issues to be Resolved
The final EIR for the Plant Master Plan for the San Jose/ Santa Clara Regional Wastewater
Facility includes a levee alignment between·Pond A18 and plant property that is not the same
alignment discussed in this report. The project proponents of the Shoreline Phase I Project
will continue to work with the City of San Jose and the regulatory agencies to coordinate the
two plans and develop a final alignment that serves both while minimizing adverse effects.
As noted throughout the report there is some uncertainty as to how various environmental
resources will respond to long term changes brought about by the Shoreline Phase I Project
and the South Bay Salt Ponds Restoration Project. The project includes an extensive adaptive
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management plan (Shoreline Stucfy Monitoring and Adaptive Management Plan for Ecosystem
Restoration). As implementation of the project progresses, adaptive management will guide the
selection of the final mix of habitats. Since project construction will occur over more than 14
years, later phases will reflect lessons learned from earlier actions. Adaptive management may
also result in corrective measures being implemented for earlier phases.
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SF BCDC Attachment August 30, 2017