An Update on the Mandated Stormwater Initiative Chesapeake Bay TMDL

Transcription

1 An Update on the Mandated Stormwater Initiative Chesapeake Bay TMDL Board of Supervisors Briefing January 27, 2016 Imagine the result Stormwater Utility

2 Outline Background Regulatory Requirements Compliance Plan Stormwater Utility Definition Proposed Rate Structure Other Virginia Stormwater Utilities

3 Municipal Separate Storm Sewer System (MS-4) Permit Re-issued Effective Date: December 17, 2014 Authorized Discharges: manage stormwater pollution Stormwater Management: develop program TMDL Action Plan and Implementation: CIP projects Chesapeake Bay Special Condition Action Plans for local stream TMDLs

4 MS-4 Permit Financial Requirements Part I, Section A.2 Permittee Responsibilities: The failure to provide adequate program funding, staffing or equipment maintenance shall not be an acceptable explanation for failure to meet permit conditions Part I, Section A.4 MS4 Program Resources: The permittee shall submit to the Department a copy of each fiscal year s budget including its proposed capital and operation and maintenance expenditures necessary to accomplish the activities required by this state permit. The permittee shall describe its method of funding the stormwater program with the copy of the fiscal year budget. Part II, Section Q Proper Operation and Maintenance: Proper operation and maintenance also includes adequate funding, adequate staffing, and adequate laboratory and process controls, including appropriate quality assurance procedures

5 Compliance Plan CIP Projects Stream Restoration Falling Creek Reservoir Dredging/Restoration BMP Retrofits (e.g. outfalls, green streets, bioswales) $35 Million over 5 years (FY17 FY21) RFCIP cannot support these mandatory requirements along with other County infrastructure needs

6 MS4 -First Permit Cycle 1 st Year FY15 2 nd Year FY16 3 rd Year FY17 4 th Year FY18 5 th Year FY19 1. Stream Rest- Wrens Nest 2. Stream Rest Midlo Mines 3. Armistead lake Regional BMP 4. James River HS BMP Retro 5. Outfall Retrofits 6. Stream Rest Pocoshock 7. County BMP Retro 8. Laprade Library BMP retro 9. Stream Rest Proctors Trib 10. Falling Creek Reservoir Restoration Design 11. County Complex - Green streets 12. Land Conversion 13. Stream Rest - Robious Park West 14. Stream Rest - Robious Park East 15. Stream Rest - Stonehenge

7 CIP Projects Update Chesapeake Bay TMDL Project Plan (FY17 21) Project Name FY2017 FY2018 FY2019 FY2020 FY2021 FY2017- FY2021 LaPrade Library BMP Retrofit/Conversion $820,000 $0 $0 $0 $0 $820,000 Stream Restoration Tributary to Proctors Creek $1,047,400 $0 $0 $0 $0 $1,047,400 Falling Creek Reservoir Restoration $2,000,000 $7,000,000 $7,000,000 $7,000,000 $0 $23,000,000 Land Conversion $0 $100,000 $0 $0 $0 $100,000 County Complex Green Streets BMPs $0 $854,500 $0 $0 $0 $854,500 Robius Park West Stream Restoration Project $0 $926,100 $0 $0 $0 $926,100 Robius Park East Stream Restoration Project $0 $0 $955,100 $0 $0 $955,100 Stonehenge Stream Restoration Project $0 $0 $1,033,200 $0 $0 $1,033,200 Falling Creek Stream Rest - Parks & Rec Trail $1,000,000 $1,000,000 Generalized Stream Restoration Project 6 $1,750,000 $1,750,000 Generalized Stream Restoration Project 7 $1,750,000 $1,750,000 Generalized Stream Restoration Project 8 $2,000,000 $2,000,000 Total $3,867,400 $8,880,600 $8,988,300 $7,000,000 $6,500,000 $35,236,300 Chesapeake Bay TMDL Project Plan (Previously Funded) Stream Restoration (3): Wrens Nest, Midlothian Mines, Pocoshock Ck. BMP Retrofits (2): James River HS, County Safety Complex Outfall Retrofits (1): Proctors Creek Armistead Lake Regional BMP Total

8 Benefits: cleaner streams and lakes, reduced flooding, compliance Impaired Streams Department of Environmental Engineering

9 Stormwater Utility - Definition A fair and equitable way to pay for stormwater costs Based on analysis that demonstrates relationship between amount charged and program costs (services) Similar to water or electric utility Typically set up as an enterprise fund Enabling legislation: of the Code of Virginia The intent of legislation is to provide a reliable funding source, other than taxes, to support the stormwater management program

10 How Are Fees Determined? The stormwater management fee is based on: The extent to which each property contributes to stormwater runoff Based on amount of impervious area/pollutant load of each property The cost of the program: projects and services Policy decisions (credits, waivers, rate structure, etc.)

11 Parcel Analysis with County GIS Data

12 Single Family Detached Impervious Area

13 Frequency Cumulative Percent Frequency Distribution of SFD Parcels Impervious Areas 20,000 Frequency Distribution for Single Family Detached Homes 100% 18,000 90% 16,000 80% 14,000 70% 12,000 60% 10,000 8,000 Median = 2,810 ft 2 50% 40% 6,000 30% 4,000 20% 2,000 10% 0 0% Impervious Area (Square Feet)

14 Typical Residence Defines the ERU Equivalent Residential Unit (ERU) ERU = 2,800 sq. ft. of impervious area Total 2,800 ft 2 Single Family Residential House Area Other Impervious Area

15 Commercial & Apartments Billed as Multiples of the ERU Sample Commercial Parcel 10,000 ft 2 6,000 ft 2 Calculation of ERUs 28,000 ft 2 / 2,800 ft 2 /ERU = 10 ERUs 12,000 ft 2 Building Area Parking Total 28,000 ft 2 Other Impervious Area Commercial & Apartments include non-residential parcels and multi-family rental parcels

16 Proposed Rate Structure Residential Flat Fee with Tiers Commercial & Apartments Based on Actual Impervious Area Undeveloped No Fees

17 Proposed Residential Rate Structure Single-Family Residential: 1 ERU Single-Family Residential (> 5,600 sq. ft. of impervious area): 2 ERUs Townhouses and Condos: 0.3 ERUs Undeveloped Land: No stormwater fee Rate: $24 per ERU/YR

18 Commercial Impervious Area

19 Proposed Commercial Rate Structure and Typical Fees Example Parcel Type Number of ERUs 1 Annual Fee 2 A Small Shopping Center 13 $312 B Large Shopping Center 251 $6,024 C Large Single Store 266 $6,384 D Gas Station 6 $144 E Church 17 $ ERU = 2,800 ft 2 2 Annual Fee based on an annual rate of $24 per ERU Rate: $24 per ERU / YR Credit program

20 Fee Example A: Small Shopping Center Impervious area = 36,000 ft 2 Number of ERUs = 13 Annual Fee = $312

21 Fee Example B: Large Shopping Center Impervious area = 703,000 ft 2 Number of ERUs = 251 Annual Fee = $6024

22 Fee Example C: Large Store Impervious area = 746,000 ft 2 Number of ERUs = 266 Annual Fee = $6384 January 21,

23 Fee Example D: Gas Station Impervious area = 17,000 ft 2 Number of ERUs = 6 Annual Fee = $144

24 Fee Example E: Church Impervious area = 49,000 ft 2 Number of ERUs = 17 Annual Fee = $408

25 Commercial Parcel Fee Statistics 25% of parcels will pay $24 or less 50% of parcels will pay $34 or less 75% of parcels will pay $230 or less 85% of parcels will pay $482 or less 90% of parcels will pay $814 or less Average Fee = $308.30/yr

26 Equitable Cost Share by Land Use

27 Virginia Stormwater Utilities Note: Arlington County, Fairfax County, and Alexandria have dedicated service districts for stormwater management

28 Stormwater Utility Proposal THANK YOU Imagine the result

29 DISCUSSION