Oahu Storm Water Utility Project City and County of Honolulu Stakeholder Advisory Group Meeting #4 March 30, 2020
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Oahu Storm Water Utility Project City and County of Honolulu - - PowerPoint PPT Presentation
Oahu Storm Water Utility Project City and County of Honolulu Stakeholder Advisory Group Meeting #4 March 30, 2020 1 Video re Oahus Storm Water Utility Study On www.StormWaterUtilityOahu.org 2 Welcome! Roundtable Alohas 3 Todays
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January 13 October 5
Utility Formation Process Introductions, charge & protocols DFM introductions & role State enabling legislation “What, Why, How & When”
Working principles Community engagement
August 19
Utility Program Needs Program needs: Challenges &
stormwater program Fee/Rate Structures Impervious cover distribution by property/customer type Draft Definition of Service & working principles Community engagement update, community outreach plan
October 21
*WEBINAR* Cost of service study update Fee analysis/ rate structure process Community engagement update
December 9
Fee, Revenue & Impacts Draft fee levels & rate structure options Level of service & investment supported by rate options Implications by ratepayer type: Largest ratepayers; public facilities; tax-exempt landowners; disadvantaged areas Community engagement update Program Priorities: Community Outreach updates Fee level & rate structure updates Program investment priority and levels Incentives & Credits: Introduction & Overview Community Outreach input: Options for response
MARCH 30
Fee & Incentive Structures Community Engagement updates (Round 2) Revised Fees & Fee Structure Budget & Program: Tailoring Investments to Match Core Values & Program Needs Incentives & Credits Ensuring equity in the storm water utility program
May 18
Implementation Planning Draft implementation plan Collaboration & leveraging
City adoption process Community engagement update
July 13
Program Refinement Status & feedback from the city adoption process Draft Implementation Plan On-site and centralized project opportunities: priorities for early investment Program responsibilities & timing for implementation Moving Ahead Final Implementation Plan Stakeholder Advisory Group Process outcomes summary Community engagement update Next steps for the Stakeholder Advisory Group
August 24 Stakeholder Advisory Group Meeting Map
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2019 2020
Update 9/11/2019
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January 13 October 5
Utility Formation Process Introductions, charge & protocols DFM introductions & role State enabling legislation “What, Why, How & When”
Working principles Community engagement
August 19
Utility Program Needs Program needs: Challenges &
stormwater program Fee/Rate Structures Impervious cover distribution by property/customer type Draft Definition of Service & working principles Community engagement update, community outreach plan
October 21
*WEBINAR* Cost of service study update Fee analysis/ rate structure process Community engagement update
December 9
Fee, Revenue & Impacts Draft fee levels & rate structure options Level of service & investment supported by rate options Implications by ratepayer type: Largest ratepayers; public facilities; tax-exempt landowners; disadvantaged areas Community engagement update Program Priorities: Community Outreach updates Fee level & rate structure updates Program investment priority and levels Incentives & Credits: Introduction & Overview Community Outreach input: Options for response
MARCH 30
Fee & Incentive Structures Community Engagement updates (Round 2) Revised Fees & Fee Structure Budget & Program: Tailoring Investments to Match Core Values & Program Needs Incentives & Credits Ensuring equity in the storm water utility program
May 18
Implementation Planning Draft implementation plan Collaboration & leveraging
City adoption process Community engagement update
July 13
Program Refinement Status & feedback from the city adoption process Draft Implementation Plan On-site and centralized project opportunities: priorities for early investment Program responsibilities & timing for implementation Moving Ahead Final Implementation Plan Stakeholder Advisory Group Process outcomes summary Community engagement update Next steps for the Stakeholder Advisory Group
August 24 Stakeholder Advisory Group Meeting Map
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2019 2020
Update 9/11/2019
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Note: New Date
Time Topic 4:00-4:10 pm Welcome, Roundtable Alohas, and Agenda Overview 4:10-4:20 Public Comment 4:20-4:30 Sunshine Act Requirements 4:35-4:40 New Binder Contents and Resources 4:40-5:00 Community Engagement Updates and Key Input Themes 5:00-5:25 Refined Program Budget and Rate Structures 5:25-5:55 Incentive Policy and Program Options 5:55-6:25 Options for Addressing Other Key Community Input Themes 6:25-6:30 Preview of May 18, 2020 Meeting Agenda and Wrap Up
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During Meeting: Use “Chat” function After Meeting: Email input to Randall by end of Friday, April 3rd
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The public is invited and encouraged to observe the meeting and to submit written comments by email or US Mail, preferably by Friday, April 3, 2020. All comments from the public will be distributed to the Stakeholder Advisory Group members and project team. Email stormwater@honolulu.gov
US Mail City and County of Honolulu Department of Facility Maintenance Storm Water Quality Branch 1000 Uluohia Street, Suite 212 Kapolei, HI 96707
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Oahu Storm Water Utility Project 16
Norfolk Southern Must Pay (2017)
bond issued by the City for wastewater system capital projects)
‒ Scientific studies on Impacts of Storm Water on Coastal Resources in Hawaii ‒ Salt Lake City Public Utilities 2017 Annual Report ‒ A Blueprint for Action: Water Security for an Uncertain Future, 2016-2018; Hawaii Fresh Water Initiative ‒ Looking Ahead: The Path to a Stormwater [sic] Utility for the City and County of Honolulu; Hawaii Pacific University/One World One Water, 2017 ‒ United States v. City of Renton, et al. (2012)
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20 Social Media & Press Websites Email Blasts Neighborhood Boards Community Networks
Getting the Word Out Community Meetings
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We’re preparing to hold all in-person meetings remotely (webinars)
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is not accurate enough to put every property in the right “tier”
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0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
5,000 10,000 15,000 20,000 25,000 30,000 35,000 40,000 45,000
1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000 10,000 11,000 12,000 13,000 14,000 15,000 16,000 17,000 18,000 19,000 >20,000
Number of Parcels
Impervious Area (sq. ft.)
Number of Parcels
Option 1: 8 tiers, increments of 1,000 SF of IA * Tier 1 minimum = 300 SF ** Tiers 1-7 = flat fee per parcel *** Tier 8 (>7,000 SF) = fee based on actual IA Option 2: 4 tiers, equal number of parcels/Tier * Tier 1 minimum = 300 SF ** Tiers 1-3 = flat fee per parcel *** Tier 4 (>5,200 SF) = fee based on actual IA
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errors/appeals with properties put into wrong Tier
for errors/appeals
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HOWEVER: THE MULTIPLIER GOING DOWN OR UP FOR A GIVEN TIER DOES NOT MEAN THE FEE ALSO CHANGES IN SAME DIRECTION OR MAGNITUDE; BECAUSE: FEE = PRODUCT OF MULTIPLIER (HOW MANY 1,000s OF SF) AND THE RATE ($/1,000 SF) 36
Option 1: 1,000 sq. ft. increments, base unit = 1,000 sq. ft., rate $ / 1,000 sq. ft., rates by tiers apply multiplier, IA>7,000 pays based on actual IA. Tier # Tier Impervious Area Range Multiplier Number of Parcels per Tier Number of Billing Units * 1 300 to 1,000 sq. ft. X 1 2,199 2,199 2 1,001 to 2,000 sq. ft. X 2 10,810 21,620 3 2,001 to 3,000 sq. ft. X 3 31,124 93,372 4 3,001 to 4,000 sq. ft. X 4 38,239 152,956 5 4,001 to 5,000 sq. ft. X 5 31,209 156,045 6 5,001 to 6,000 sq. ft. X 6 18,211 109,266 7 6,001 to 7,000 sq. ft. X 7 8,774 61,418 8 >7,000 sq. ft. actual IA 18,487 972,857 Total 159,053 1,569,733
* For first seven tiers, number of parcels times multiplier. For the eighth tier, based on actual IA divided by 1,000 sq. ft.
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Option 1: 1,000 sq. ft. increments, base unit = 1,000 sq. ft., rate $ / 1,000 sq. ft., rates by tiers apply multiplier, IA>7,000 pays based on actual IA. Tier # Tier Impervious Area Range Multiplier Number of Parcels per Tier Number of Billing Units * 1 300 to 1,000 sq. ft. 0.50 2,199 1,100 2 1,001 to 2,000 sq. ft. 1.50 10,810 16,215 3 2,001 to 3,000 sq. ft. 2.50 31,124 77,810 4 3,001 to 4,000 sq. ft. 3.50 38,239 133,837 5 4,001 to 5,000 sq. ft. 4.50 31,209 140,441 6 5,001 to 6,000 sq. ft. 5.50 18,211 100,161 7 6,001 to 7,000 sq. ft. 6.50 8,774 57,031 8
>7,000 sq. ft. actual IA
18,487 972,857 Total 159,053 1,499,450
* For first seven tiers, number of parcels times multiplier. For the eighth tier, based on actual IA divided by 1,000 sq. ft
Number of billing units goes down with mid-point multiplier, so rates ($/1,000 SF) go up. 38
Option 2: Quartiles increments, 1 - 25th, 26th - 50th, 50th - 75th, >75th. Tier 1 pays based on multiplier of 1. Multiplier for Tiers 2 and 3 based on mid-point of tier ranges, rounded. Tier 4 pays based on actual IA. Tier # Tier Impervious Area Range Multiplier Number of Parcels per Tier Number of Billing Units * 1 300 to 2,800 sq. ft. X 1 36,543 36,543 2 2,801 to 3,900 sq. ft. X 3 42,164 126,492 3 3,901 to 5,200 sq. ft. X 5 39,592 197,960 4
> 5,200 sq. ft. actual IA
40,754 1,104,411 Total 159,053 1,465,406
* For first three tiers, number of parcels times multiplier. For the fourth tier, based on actual IA divided by 1,000 sq. ft
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Option 2: Quartiles increments, 1 - 25th, 26th - 50th, 50th - 75th, >75th. Multipliers for Tiers 1, 2 and 3 based on mid-point of tier ranges. Tier 4 pays based on actual IA. Tier Tier Impervious Area Range Multiplier* Number of Parcels per Tier Number of Billing Units * 1 300 to 2800 sq. ft. 1.40 36,543 51,160 2 2801 to 3900 sq. ft. 3.35 42,164 141,249 3 3901 to 5200 sq. ft. 4.55 39,592 180,144 4 >5,200 sq. ft. actual IA 40,754 1,104,411 Total 159,053 1,476,965
* For first three tiers, number of parcels times multiplier. For the fourth tier, based on actual IA divided by 1,000 sq. ft
Number of billing units goes up with mid-point multiplier, so rates ($/1,000 SF) go down. 40
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Oahu Storm Water Utility Project 44
Compliance) and LOS 2 +/- (Better Program with Modifications)
expenses over time
stream cleaning, drain system inspection/ cleaning, street sweeping, system planning, partnerships
project financing in Year 4
Average Annual Budget FY22 – FY 27: $96.7 million
$51.3 $56.4 $60.9 $65.3 $68.6 $70.4 $34.3 $39.4 $40.3 $15.1 $16.1 $16.5 $22.6 $24.1 $24.8 $85.6 $95.8 $101.2 $103.1 $108.8 $111.7 $0 $20 $40 $60 $80 $100 $120 2022 2023 2024 2025 2026 2027 Millions of Dollars Fiscal Year Operating Cash Funded CIP Debt Funded CIP Total
*Fees will be fixed for six years; fund balances are carried over from year to year. 45
(LOS 2+/- was used to develop the fees reviewed in January)
budget decreases with use
address long-term asset renewal/replacement ($25 million/year)
budget increases supporting stream cleaning, green infrastructure, drainline maintenance
$54,196,519 $61,042,062 $62,033,748 $47,890,000 $59,341,671 $37,741,979
$0 $20,000,000 $40,000,000 $60,000,000 $80,000,000 $100,000,000 $120,000,000 $140,000,000
LOS 1 LOS 2 +/- Plan C Comparison of Program Budgets Evaluated FY22-FY27 Annual Average Expenditures Operating Capital 46
FY21 FY22-27 Average Program Enhancement: Fee Implementation
$550k $580k
Education & Training
$1.5m $1.8m
Partnership grants to schools & community organizations Inspections/IDDE
$6.48m $7.1m
Additional customer facing inspector positions Permitting
$2 m $2.3m
Fill vacant positions at DPP System Maintenance
$11.1m $21.4m
Proactive drainline inspection & maintenance, increased street sweeping & catch basin cleaning Admin & IT
$3.4m $5.5m
Grants management & leveraging; Customer Service; IT Green Infrastructure Programs
$0 $1.25m
Green infrastructure partnerships & grant support Water Quality & TMDLs
$3.0m $3.7m
Add dry weather monitoring program Stream Maintenance
$4.8m $11.8m
**2 additional crews, heavy equipment & operator Trash
$5.6m $6.9m
Community partnerships, Mayor’s Task Force, fill vacancies 47
Enhanced School Partnerships, $150,000 Enhanced Community-Based Partnerships, $150,000 Information technology (drone/GIS analysis), $0 Agricultural Site Certification Support, $150,000 Green Infrastructure Mini- Grants, $250,000 Urban forestry/tree keeping, $120,000 Expand NGICP Certification Opportunity, $75,000 Water capture incentives, $250,000 Workforce development programs, $120,000 Maintenance incentives/credits, $150,000 Headwaters Conservation, $100,000 Community Partnerships for Trash Reduction, $150,000
DRAFT BUDGET FOR ORGANIZATION, GRANT & PARTNERSHIP SUPPORT FY 22-27 ANNUAL AVERAGE
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implementation/ ramp up plus Debt Service in year 4
in Year 4, covering 60% of CIP in Years 4, 5 and 6. Monthly Rate per 1,000 SF
$51.3 $56.4 $60.9 $65.3 $68.6 $70.4 $34.3 $39.4 $40.3 $15.1 $16.1 $16.5 $22.6 $24.1 $24.8 $85.6 $95.8 $101.2 $103.1 $108.8 $111.7 $0 $20 $40 $60 $80 $100 $120 2022 2023 2024 2025 2026 2027 Millions of Dollars Fiscal Year Operating Cash Funded CIP Debt Funded CIP Total
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$51.3 $56.4 $60.9 $65.3 $68.6 $70.4 $5.7 $5.7 $34.3 $39.4 $40.3 $15.1 $16.1 $16.5 $85.6 $95.8 $101.2 $80.4 $90.4 $92.6 $0 $20 $40 $60 $80 $100 $120 2022 2023 2024 2025 2026 2027
Millions of Dollars
Fiscal Year Operating Debt Service Cash Funded CIP Total
$34.3 $39.4 $40.3 $15.1 $16.1 $16.5
$22.6 $24.1 $24.8
$0.0 $5.0 $10.0 $15.0 $20.0 $25.0 $30.0 $35.0 $40.0 $45.0 2022 2023 2024 2025 2026 2027
Cash and Debt Funded CIP
Cash Funded CIP Debt Funded CIP
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$2.38 $7.13 $11.88 $16.63 $21.38 $26.13 $30.88 $38.00 $42.75 $47.50 $0 $5 $10 $15 $20 $25 $30 $35 $40 $45 $50 1,000 (Tier 1) 2,000 (Tier 2) 3,000 (Tier 3) 4,000 (Tier 4) 5,000 (Tier 5) 6,000 (Tier 6) 7,000 (Tier 7) 8,000 (Tier 8 ) 9,000 (Tier 8) 10,000 (Tier 8 )
Monthly Bill Impervious Area (sq. ft.)
Year 1 Bill Impact: Estimated Monthly Bill for Plan C and 8 tiers
$6.77 $6.77 $16.19 $21.99 $21.99 $29.00 $33.83 $38.67 $43.50 $48.33 $0 $10 $20 $30 $40 $50 $60 1,000 (Tier 1) 2,000 (Tier 1) 3,000 (Tier 2) 4,000 (Tier 3) 5,000 (Tier 3) 6,000 (Tier 4) 7,000 (Tier 4) 8,000 (Tier 4) 9,000 (Tier 4) 10,000 (Tier 4)
Monthly Bill Impervious Area (sq. ft.)
Year 1 Bill Impact: Estimated Monthly Bill for Plan C and 4 tiers
Median single-family residence (3,800 SF) pays
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Detroit, MI $125.00 Winston-Salem, NC $69.25 Mecklenburg County (Charlotte, NC) $49.85 Seattle, WA $36.00 Tacoma, WA $23.25 Mission, KS $19.00 Boulder, CO $16.82 Philadelphia, PA $13.48 Virginia Beach, VA $12.99 Eugene, OR $12.27 Minneapolis, MN $11.42 Chattanooga, TN $9.60
Monthly Fee Range for Median Single Family Residential (@3800 SF) 57
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Stormwater Class Residential Parcel Area (sq. ft.) 1,741 Total IA (sq. ft.) 1,368 Rate Option 1 Tier 2 Rate Option 2 Tier 1 Net Taxable Property Value $366,000
$9.88 $11.00 $7.13 $9.80 $10.38 $6.77 $17.08 $17.15 $12.34
$0 $0 $2 $2 $4 $4 $6 $6 $8 $8 $10 $10 $12 $12 $14 $14 $16 $16 $18 $18 $20 $20 Basic Compli liance Better Program Plan C: Phase in in+Bonds Mon
Stormwater Charge 8 Tie iers 4 Tie iers Equivale lent Property Tax
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TMK 112002045
Stormwater Class Residential Parcel Area (sq. ft.) 5,047 Total IA (sq. ft.) 4,211 Rate Option 1 Tier 5 Rate Option 2 Tier 3 Net Taxable Property Value $1,224,100
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TMK 111065039
Stormwater Class Residential Parcel Area (sq. ft.) 71,586 Total IA (sq. ft.) 33,896 Rate Option 1 Tier 8 Rate Option 2 Tier 4 Net Taxable Property Value $23,670,400
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TMK 121002035
Stormwater Class Commercial Parcel Area (sq. ft.) 4,008 Total IA (sq. ft.) 4,008 Rate Option 1 Tier 5 Rate Option 2 Tier 3 Net Taxable Property Value $1,562,000
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TMK 111071001
Stormwater Class Commercial Parcel Area (sq. ft.) 325,734 Total IA (sq. ft.) 240,519 Rate Option 1 Tier 8 Rate Option 2 Tier 4 Net Taxable Property Value $33,752,100
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TMK 112007001
Stormwater Class Commercial Parcel Area (sq. ft.) 95,680 Total IA (sq. ft.) 92,087 Rate Option 1 Tier 8 Rate Option 2 Tier 4 Net Taxable Property Value $13,784,000
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TMK 126015046
Stormwater Class Faith Based Parcel Area (sq. ft.) 4,200 Total IA (sq. ft.) 3,454 Rate Option 1 Tier 4 Rate Option 2 Tier 2 Net Taxable Property Value $0
= Non-Taxable
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TMK 131017044
Stormwater Class Faith Based Parcel Area (sq. ft.) 37,488 Total IA (sq. ft.) 26,123 Rate Option 1 Tier 8 Rate Option 2 Tier 4 Net Taxable Property Value $0
= Non-Taxable
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TMK 115041042
Stormwater Class
Parcel Area (sq. ft.) 1,781,467 Total IA (sq. ft.) 1,232,077 Rate Option 1 Tier 8 Rate Option 2 Tier 4 Net Taxable Property Value $0
= Non-Taxable
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TMK 111034042
Stormwater Class
Parcel Area (sq. ft.) 332,088 Total IA (sq. ft.) 146,549 Rate Option 1 Tier 8 Rate Option 2 Tier 4 Net Taxable Property Value $0
= Non-Taxable
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Incentives can come in 2 forms:
towards implementation costs:
businesses to install Green Infrastructure
based storm water fee:
infrastructure projects
Encourage Two Important Actions: (1)Installation and proper maintenance of physical storm water management projects on individual properties (2)Implementing “non-structural measures” (i.e. actions
pollution) that help DFM meet MS4 permit requirements
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support to Faith community
support to non-residential properties
share incentives
Church in City of Richmond, VA 73
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and standards specified in Municipal ordinance
green infrastructure such as bioretention, cisterns, rainwater harvesting, rain gardens, green roofs, vegetated swales,
detention ponds, underground storage
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Infiltration Trenches Filtration Planters Porous Pavement Rain Barrels Tree Box Filters Green Roofs
Rain Garden Bioretention 77
Department of Health (Airport, US Navy, others)
Adopt-a-Stream programs
ed, community organizations) that provide direct watershed and storm water / water quality education
City’s public education & outreach program
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impervious area AND runoff from adjoining properties
for credits)
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Type of BMP Maximum Credit Green Infrastructure/Volume Controls 60% Peak Runoff Rate Control 30% Water Quality Treatment 30% Non-Structural Measures (e.g. trash cleanup, integrated pest management) 15% Industrial NPDES Stormwater Permit (in compliance) 15%
BMP % IA Treated Credit
NPDES Permit NA 15% Oil Water Separator 20% 30% x 20% = 6% Bioretention 35% 60% x 35% = 21% Subtotal & Total Credit 42% = 42% credit
Example 2: Golf Course
BMP % IA Treated Credit
Integrated Pest Management/ Trash Cleanup NA 15% Extended Detention 90% 30% x 90% = 27% Bioretention 50% 60% x 50% = 30% Subtotal and Total Credit 72% = Credit capped at 60%
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in a Credit Program Manual
and one for larger (multi- family) and non-residential properties
Storm Water Utility Ordinance, with DFM authorized to adopt and amend as needed
meet customer & program needs 86
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PARTNERS
https://www2.montgomerycountymd.gov/DEPWQPC/SearchProperty.aspx
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Before BMP facilities are entered Example
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WQv Available More Detailed than SFR
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Options:
years
more years
balance’ to start)
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Options:
Supply through Charter change
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Options:
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Options:
flow to pervious areas (sites without connected roof gutters, foundation drains, pier & post construction, etc.)
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Options:
each geographic area
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Options:
properties
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January 13 October 5
Utility Formation Process Introductions, charge & protocols DFM introductions & role State enabling legislation “What, Why, How & When”
Working principles Community engagement
August 19
Utility Program Needs Program needs: Challenges &
stormwater program Fee/Rate Structures Impervious cover distribution by property/customer type Draft Definition of Service & working principles Community engagement update, community outreach plan
October 21
*WEBINAR* Cost of service study update Fee analysis/ rate structure process Community engagement update
December 9
Fee, Revenue & Impacts Draft fee levels & rate structure options Level of service & investment supported by rate options Implications by ratepayer type: Largest ratepayers; public facilities; tax-exempt landowners; disadvantaged areas Community engagement update Program Priorities: Community Outreach updates Fee level & rate structure updates Program investment priority and levels Incentives & Credits: Introduction & Overview Community Outreach input: Options for response
MARCH 30
Fee & Incentive Structures Community Engagement updates (Round 2) Revised Fees & Fee Structure Budget & Program: Tailoring Investments to Match Core Values & Program Needs Incentives & Credits Ensuring equity in the storm water utility program
May 18
Implementation Planning Draft implementation plan Collaboration & leveraging
City adoption process Community engagement update
July 13
Program Refinement Status & feedback from the city adoption process Draft Implementation Plan On-site and centralized project opportunities: priorities for early investment Program responsibilities & timing for implementation Moving Ahead Final Implementation Plan Stakeholder Advisory Group Process outcomes summary Community engagement update Next steps for the Stakeholder Advisory Group
August 24 Stakeholder Advisory Group Meeting Map
W 1 2 3 4 5 6 7 8
2019 2020
Update 9/11/2019
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Bill is drafted by DFM Corporation Counsel reviews for form & legality Bill is introduced to Council Bill placed on Order of the Day for First Reading & Referral to Committee(s) Bill referred to Committee(s) for review and amendment Committees review, amend, and vote on Bill and send back to Council Council holds Second Reading and Public Hearing - may refer to Committees for further review Committees review & send back to Council Council holds Third Reading and approves or disapproves, forwards to Mayor Mayor approves or disapproves
April 2020 May June July July July - August August - September September
October – November 2020
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TMK 112003064
Stormwater Class Residential Parcel Area (sq. ft.) 5,002 Total IA (sq. ft.) 3,702 Rate Option 1 Tier 4 Rate Option 2 Tier 2 Net Taxable Property Value $727,200
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TMK 131010045
Stormwater Class Residential Parcel Area (sq. ft.) 9,374 Total IA (sq. ft.) 4,408 Rate Option 1 Tier 5 Rate Option 2 Tier 3 Net Taxable Property Value $0
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TMK 131010064
Stormwater Class Residential Parcel Area (sq. ft.) 4,800 Total IA (sq. ft.) 4,800 Rate Option 1 Tier 5 Rate Option 2 Tier 3 Net Taxable Property Value $1,235,700
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TMK 126016057
Stormwater Class Commercial / Hotel Parcel Area (sq. ft.) 4,748 Total IA (sq. ft.) 4,365 Rate Option 1 Tier 5 Rate Option 2 Tier 3 Net Taxable Property Value $9,058,500
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TMK 112022032
Stormwater Class Commercial Parcel Area (sq. ft.) 34,115 Total IA (sq. ft.) 29,902 Rate Option 1 Tier 8 Rate Option 2 Tier 4 Net Taxable Property Value $5,816,400
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TMK 1120030109
Stormwater Class Industrial Parcel Area (sq. ft.) 4,986 Total IA (sq. ft.) 4,583 Rate Option 1 Tier 5 Rate Option 2 Tier 3 Net Taxable Property Value $3,094,500
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TMK 111071003
Stormwater Class Faith Based Parcel Area (sq. ft.) 142,671 Total IA (sq. ft.) 117,299 Rate Option 1 Tier 8 Rate Option 2 Tier 4 Net Taxable Property Value $0
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TMK 121002024
Stormwater Class
Parcel Area (sq. ft.) 4,004 Total IA (sq. ft.) 3,480 Rate Option 1 Tier 4 Rate Option 2 Tier 2 Net Taxable Property Value $0
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Type of Stormwater Management Practice Credit (%) Possible Example Practices Green Infrastructure / Runoff Volume Controls 60% Rain gardens, bioretention, infiltration trenches, permeable pavements, green roofs Peak Runoff Rate (Flood) Controls 30% Constructed wetland, dry extended detention pond, wet/retention pond, underground detention system Water Quality Treatment 30% Constructed wetland, constructed filters, vegetated swale/filter strip, proprietary treatment devices Non-Structural Controls 15% Tree canopy, downspout disconnection, approved environmental education/outreach program National Pollutant Discharge Elimination System (NPDES) Stormwater Permit 15% Facilities with an active and fully-compliant NPDES stormwater permit
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effectiveness of on-site stormwater controls.
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Management Technique Value
Releasing stormwater off of your property 0% Downspouts drain to drywells and French drains 100% Downspouts drain to swales, gardens and infiltrating areas 100% Downspouts drain to cistern and rain barrels
*Rainwater reuse must be on property and safe.
100%* Downspouts drain to pond, holding facility or planter 67% Other stormwater management techniques
Calculated based on review
An ecoroof is installed to manage stormwater runoff 100% Less than 1,000 square feet of total impervious area 25% Four or more trees on private property 8%
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Management Technique – Area Served % Discount Direct release to a river or slough 100% Permitted release to City sanitary sewer system 100% Ecoroof 100% Contained Planter 100% Pervious Pavement 100% Pond and Wetland 67% Detention Tank or Vault 33% Manufactured Pollution Reduction Facility 33% Oil-Water Separator 33% Drywell 67% Approved Source Controls 33% Approved Rainwater Re-use System 67% Management Technique Sizing Standard % of Area Served Downspout Disconnection to Infiltrating Area 10% Vegetated Swale or Infiltration Basin 9% Grassy Swale 12% Vegetated Filter 20% Infiltration or Flow-Through Planter 6% Sand Filter 7% Eastside Soakage Trench 6% Westside Soakage Trench 11%
relative to:
(disposal) control.
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