San Mateo County Grand Jury • 2014-2015

Flooding Ahead: Planning for Sea Level Rise Issue | Summary | Glossary | Background | Methodology | Discussion |

Published: June 04, 2015 158 pages
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Findings and Recommendations 12 findings

F1
SMC is at severe risk for flooding due to the gradual rise in sea level, projected at up to 65 inches (167 centimeters) by the year 2100. Catastrophic SLR of nearly 15 feet is a possibility this century.
No recommendations for this finding
F2
SLR is a threat countywide, including the upland areas. All residents depend on public infrastructure, especially wastewater treatment plants. Also, a significant portion of the countywide property tax base is within the area threatened by SLR.
No recommendations for this finding
F3
Although many local officials are now familiar with and concerned about the threat of SLR, there is inadequate public awareness of SLR’s potential impacts on this county.
Related Recommendations (1)
R1
The County, each city in the county and relevant local special agencies43 should conduct a public education effort to increase awareness of SLR and its potential effects on this county. The Grand Jury recommends identifying a single organization to undertake SLR planning:
F4
Levees, including their financing, are currently the responsibility of each individual city or special agency with jurisdiction along streams, bay, and coast (the County is responsible for unincorporated areas).
No recommendations for this finding
F5
Flood risk is based on topography, not political boundaries. The safety of properties in one jurisdiction often depends on levee projects undertaken by another jurisdiction.
No recommendations for this finding
F6
Currently, no countywide agency exists to provide planning, facilitate coordination among jurisdictions, or to assist with securing funding for existing flood control projects. The same is true for future SLR-related projects.
Related Recommendations (1)
R2
The County, each city in the county and relevant local special agencies44 should identify a single organization, such as a new joint powers authority or an expanded SMC Flood Control District, to undertake countywide SLR planning. It should be structured to ensure that: • The organization is countywide in scope • The organization is able to focus on SLR • Both the County and cities (and possibly relevant local agencies) are able to participate in the organization’s decision-making45 • The organization is sustainably funded
F7
To the Grand Jury’s knowledge, no local jurisdiction has adopted SLR projections or maps for specific local land use planning purposes.42 No consistent SLR projection has been adopted countywide by the County and cities.
Related Recommendations (1)
R3
The organization’s responsibilities should include: • Adopt consistent SLR projections for use in levee planning countywide • Conduct and/or evaluate vulnerability assessments46 • Provide a forum for inter-jurisdictional coordination and exchange of information related to SLR • Undertake grant applications for SLR-related planning and projects • Facilitate raising funds on a countywide basis for SLR-related projects, to be passed through to agencies with direct responsibility for project construction 43 San Mateo County Flood Control District and San Francisquito Creek Joint Powers Authority. Ibid. The organization could also create a technical advisory committee with representatives of departments responsible for levee construction and management, as well as representatives of public facilities at risk, such as airports and wastewater treatment plants. A vulnerability assessment could (a) inventory areas at risk for SLR (commercial, residential, public facilities, and infrastructure), (b) determine the adequacy of existing levee protection, and (c) identify and prioritize the projects that will be needed to adapt to SLR. • Monitor actual SLR over time and any changes in SLR projections, based upon the latest federal, State, or regional government reports and scientific studies • Through the CEQA environmental review process, comment on major new developments proposed in the SLR floodplain • Advocate on behalf of the member jurisdictions with federal, State, and regional agencies regarding SLR issues • Assist the County and cities in public awareness efforts, as described in R1
F8
There is a recognized need for a countywide approach to SLR planning and coordination among jurisdictions.
No recommendations for this finding
F9
Several city managers and others interviewed did not support having a new countywide organization assume direct control of levee projects at this time.
No recommendations for this finding
F10
The County and cities can address SLR in their General Plans and Climate Action Plans, can map the threat, and can adopt relevant policies. See discussion of SLR planning in several San Mateo County cities in footnote 39.
Related Recommendations (1)
R6
The County and each city should amend its General Plan, as needed, to address the risk for SLR. The Safety Element48 should include a map of any areas vulnerable to SLR, as determined by measurements in the countywide Vulnerability Assessment [R3]. Further, it should identify policies that apply to areas threatened by SLR. San Mateo County Flood Control District and San Francisquito Creek Joint Powers Authority. As an alternative, the City of San Carlos has addressed SLR in its Climate Action Plan (CAP). The City states that the CAP was developed as a “component of the 2009 General Plan update . . . a legally defensible approach to ensuring that the Climate Action Plan is implemented” (see City of San Carlos, Climate Action Plan, 2009, p. 2). The Grand Jury recommends that local governments champion SLR issues before regional, State, and federal governments and agencies:
F11
Many actions to address SLR are within the authority of regional, State, and federal agencies.
Related Recommendations (1)
R7
The County, cities, and relevant local special agencies, through their representatives on regional agencies, membership in state associations, lobbyists, and elected State and federal legislators, should pursue SLR-related issues with government bodies outside SMC.
F12
By acting now, SMC may be able to reduce future costs by integrating SLR-related projects with other programmed levee projects, and by using land use planning measures to mitigate future exposure to SLR.
Related Recommendations (2)
R4
The County, cities and two relevant local special agencies47 should consider expanding the role of the organization beyond SLR to include planning and coordination of efforts to address existing flooding problems along the Bay, coast, and creeks that are subject to tidal action. It may be cost-effective to integrate SLR protection with other levee-improvement programs. The County and cities may also consider expanding the role of the new organization to include potentially compatible functions such as the National Pollution Discharge Elimination System (NPDES), currently managed by C/CAG, and the new (2014) State requirements for local sustainable groundwater planning.
R5
The organization—its administration, staffing, and program expenses—should be funded on a sustainable basis by: • Member contributions • Contributions solicited from parties threatened by SLR, including corporations and agencies that operate public facilities such as wastewater treatment plants • Grants solicited from available potential sources such as the California Climate Resilience Account • Reducing administrative costs by contracting for services with the County or another agency The Grand Jury recommends that SLR be addressed in local land use planning:

No Responses Found 1

Government entities assigned to respond to this report. No response documents have been linked in our database.

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