City Council and Concurrent Authorities
May 21, 2024

Mossdale Tract AreaOverlay Assessment DistrictCity of Stockton City CouncilAgenda Item 15.1May 21, 2024

Recommendation
2 Consider ballots for the proposed San Joaquin Area Flood Control Agency (SJAFCA) Mossdale Tract Assessment District formation (for City-owned properties), and authorize the City Manager or designee to execute / return completed ballots What is SJAFCA?
3 • Joint Powers Authority (1995)• Stockton, Lathrop, Manteca• San Joaquin County• San Joaquin County Flood Control & Water Conservation District• Reduce and manage flood risk • Plans, finances, and implements flood risk reduction projects and programs• 9-member Board of Directors Mossdale Tract Area
4 • Portions of Stockton, Lathrop and Manteca• More than 55,000 residents• 22K properties (20K residential)• 32 schools• Hospital & medical centers• Fire, police stations• Manteca Wastewater Treatment Plant• Correctional Facilities• I-5 and Hwy 120

Challenges
5 • State/federal regulations for flood protection are becoming stricter• Weather extremes are unpredictable• Every major storm event stresses levee system• Levees are the only/last defense against flooding• Existing level of flood protection is not adequate

Increasing Flood Risk
6 According to CA DWR:• 3x more flood flows in SJ River• Additional 5’ of water at French Camp Slough• Estimated Annualized Damages = $47M/year• Life loss

Problems to Avoid
7 • Physical damages from flooding•San Joaquin River•Tributaries (e.g. French Camp Slough)• Economic impacts from failure to meet state/federal regulations •No allowance for changes in existing development footprint•Risk of FEMA remapping, mandatory flood insurance Cost of Flood DamageCostDepth$10,8191 inch$21,1616 inches$29,3601 foot$36,3602 feet$39,8313 feet$43,4004 feet Source: FEMA, based on 1,000 SF home8
Cost for Flood InsuranceFEMA Special Flood Hazard AreasMandatory insurance for properties with mortgages/loansCosts increase 18% per yearWon’t fully cover damagesSlow payment of claimsDifferenceAverage Risk-Based PremiumAverage Current PremiumZip Code+ $777.39$1,736.52$ 959.1395203+ $607.10$1,655.84$1,048.7595204Source: 2022 FEMA Risk Rating 2.0: Projected RENEWAL Premium Changes by Zip Code Cost to the Economy
10 How do we protect lives, property & economy?• Improve levees to provide 200-Year Flood Protection• Maintain levees to State & Federal standards 11 12
200-Year Levee Improvement Project• $472.9 million over 10-Years• Levees along San Joaquin River & tributaries, extension of Manteca dryland levee• Project includes:• Levee raises• Cutoff Walls• Seepage berms• Erosion protection• Extension of dryland levee

Mossdale Tract Urban Flood Risk Reduction Project - Cost Share 13 State/Federal = $362.6 millionLocal = $110.3 million Based on updated cost estimate prepared by LWA for SJAFCA’s 2023 Annual Adequate Progress Report State24.1%Federal52.6%SJAFCA23.3%
Total Local Funding = $132.5 Million• Development Impact Fees = $70.9 Million• Enhanced Infrastructure Financing District = $21.7 Million• Overlay Assessment = $39.9 Million*Mossdale Tract Urban Flood Risk Reduction Project – Local Funding *OAD reflects annual revenues and bond financing net of debt service during project implementation.

EIFD16.3%Development Impact Fees53.5%OAD30.1%• Local Funding sources used to pay early planning a design costs ($11.5 million) as well as cash flow / finance the project14 Overlay Assessment DistrictAssessment District covers approx. 22,500 Parcels.Services – 200-Year Project and its ongoing maintenanceWould raise approx. $2,625,000 / Yr (FY 2024/25 Budget)Subject to escalation based annual approval by SJAFCA Board limited to CPI with 4% cap.Term - for 30-years from the issuance of bonds secured by the AssessmentsBond issuance in late 2025/early 2026

Assessment Weight by Land Use
16 Proposed FY 2024/25Average 90th Percentile AssessmentSingle Family Residential18,285 $78 $124 $1,420,403 54.4%Industrial244 $1,899 $6,563 $463,382 17.8%Planned Commercial86 $2,736 $4,444 $235,334 9.0%Commercial227 $896 $2,322 $203,330 7.8%Vacant3,209 $39 $39 $125,220 4.8%Public69 $1,634 $8,464 $112,753 4.3%Planned Residential91 $194 $617 $17,691 0.7%Multifamily Residential86 $131 $300 $11,255 0.4%Agricultural139 $70 $103 $9,789 0.4%Mobile Homes32 $173 $590 $5,550 0.2%Planned Industrial86 $50 $155 $4,305 0.2%Total22,554 $116 $2,609,012 100.0%Land Use CategoryParcel CountProposed Assessment Rates / ParcelShare of Total Assessment Assessment Ranges (All Land Use)
17 94% will pay less than $12.50 per month ($150/year)
5,8988824,6535,8734,00748675501,0002,0003,0004,0005,0006,0007,000Parcel CountParcel Count by Assessment Range All Land Uses - Parcel CountsOAD Assessment Rates
Prop 218 Process
18 ⮚Only property owners vote, including public agencies⮚Weighted vote ($1 assessment = 1 vote)⮚Ballots mailed to property owners - May 4⮚Public Hearing at SJAFCA Special Meeting – June 20⮚Ballot Tabulation (commencing June 21 until complete)⮚SJAFCA Board meeting/Balloting Results – July 18⮚Majority Protest⮚Weight of ballots opposed exceed weight of ballots in favor

More Information
19 • Hotline: (209) 475-7009• Email: [email protected]•www.sjafca.org/OAD• Frequently Asked Questions• Boundary maps• Preliminary Engineer’s Report• Assessment calculator 10 City Owned Parcels Includes Fire Station, Park, Water Tanks and open space parcels.Combined Assessments for 2024-25 is $2,731.78Request City Council authority and direction to complete and return ballots

Questions & Discussion
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