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City of Jackson, Michigan

$$$. City of Jackson, Michigan. STORM WATER UTILITY . Vic Cooperwasser, P.E. Tetra Tech. April 13, 2011. Agenda. Storm Water Utility Equivalent Hydraulic Area Method Storm Water Rates Storm Water User Fee Credits Residential Property Credit Storm Water Quantity Credits

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City of Jackson, Michigan

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  1. $$$ City of Jackson, Michigan STORM WATER UTILITY Vic Cooperwasser, P.E. Tetra Tech April 13, 2011

  2. Agenda • Storm Water Utility • Equivalent Hydraulic Area Method • Storm Water Rates • Storm Water User Fee Credits • Residential Property Credit • Storm Water Quantity Credits • Education Credit • Benefits to You • Questions and Answers

  3. Storm Water Utility A Storm Water Utility charges parcels based on their relative storm water runoff, including parcels exempt from property taxes

  4. Parcels are billed for storm water service in a manner similar to billing for water and sewer usage. This is more equitable than funding through property taxes.

  5. Equivalent Hydraulic Area Method IMPERVIOUS AREA 100 Drops PERVIOUS AREA 100 Drops 95 drops flow 5 absorbed 15 drops flow 85 absorbed grassy/ underdeveloped paved Equivalent Hydraulic Area (EHA) = 0.95 x Impervious Area +0.15 x Pervious Area 15 100 95 100 Relative Runoff = Paved Area x ---- + Pervious Area x ----

  6. Storm Water Rates • Residential Flat Rate: $8.00 per Quarter • Others based on parcel area measurement, billed monthly: $2.70 x Number of EHA units

  7. Storm Water User Fee Credits Owners may apply for storm water user fee credits: • Residential Property: Flat Rate 25 % Credit • Others: • Storm Water Quantity: 25 to 50% Credit • Education: 25%

  8. Residential Property Storm Water User Fee Credit • Rain Gardens OR • On-site Storm Water Storage: • Rain barrel • Cistern OR • Vegetated Filter Strips

  9. Storm Water Quantity Storm Water User Fee Credit • Post development is equal to or less than pre-development peak flow for 1 year storm: 25% credit • 2, 10 or 25 year storm: 35% • 2, 10, 25, 50 or 100 year storm: 45% • 20% more than need for 100 year storm: 50%

  10. Storm Water Education Storm Water User Fee Credit • Available to elementary, middle and high school (public and private): 25% • Can be combined with a storm water quantity credit • Maximum total credit is 50%

  11. Benefits to You • Dedicatedfunding to comply with storm water NPDES Permit requirements • More money available for street improvements • Fund storm water capital improvements • Charge all parcels equitably (including tax-exempt) based on parcel area

  12. Questions and Answers Vic Cooperwasser, P.E. Tetra Tech 734-213-4063 vic.cooperwasser@tetratech.com

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