1 Storm Water Utility City of Durand

2 Storm Water Runoff Rainwater flows across streets, parking lots, driveways, lawns Pollutants are picked up by the storm water –Oils from cars & trucks. –Fertilizers/pesticides from lawns & farms –Organics from grass & leaves –Salts and Sediments from street maintenance.

3 Storm Water Runoff Erosion of existing soils –Steep slopes left without vegetation –Construction site with no erosion control Pollutants and Soils are carried to the Chippewa River.

4 Why Treat Stormwater? Environmental Stewardship. NR 151 –Redevelopment must remove 40% suspended solids. New Development must remove 80% suspended solids. –Developed runoff rates must match the undeveloped rates. –Developed infiltration volumes must meet capped percentages of undeveloped infiltration volume. NR 216 –Currently, all communities larger than 10,000 or more need a storm water discharge permit, similar to the WWTP discharge permit.

5 Storm Water Funding Sources Two primary methods of raising funds to install, support, and improve storm water systems: Property Taxes Storm Water Utility

6 Property Taxes Pros: –Existing payment collection system. –Spreads costs by property value. Cons: –Some properties tax exempt. –Single family residential pays disproportionately. –Current levy requirements make it difficult to finance large projects.

7 Storm Water Utility Pros: –Costs spread by impervious area – “Users Pay” »Burden is shifted away from single family residential properties. »Burden is shifted toward commercial, industrial, and institutional properties. –Operates like water or wastewater utility. –Charges can be structured to provide incentives Cons: –Perception of new charges

8 Eligible Utility Costs Construction of storm water ponds. Maintenance of storm sewers. Maintenance of ponds. Street sweeping. Leaf collection. Erosion stabilization. Administrative costs.

9 Process 1.Prepare a budget for capital improvements. 2.Prepare budget for proposed expenses (operation, maintenance, debt service). 3.Determine the average residential impervious surface square footage and the number of single family homes in the community. 4.Determine the impervious surface for all non-single family properties.

10 Process, cont. 5.Determine how to distribute ERUs for multi-family residential.  Measured Individually?  Standard Ratio? 6.Determine credit system for existing storm water management facilities. 7.Determine incentives for single family residential. 8.Create storm water utility ordinance and rate structure, and set up administrative requirements.

11 Durand Funding Shares

12 Budget Proposed Budget Summary Wages and Benefits$27,000 Operating Expenses$5,000 Equipment$6,600 Outlay$26,500 Total Proposed Budget$65,100

13 Fee Structure City of Durand Customers will be divided into three classifications: 1.Single Family Residential 2.Full Multiple Residential 3.Nonresidential

14 Fee Structure—Single Family Residential The average impervious area for a single family residence, duplex unit, or three-plex unit in the City is approximately 3,300 square feet. Each residential customer will be charged 1.0 ERU

15 Fee Structure—Full Multiple Residential Full Multiple Residential impervious surfaces will be measured off of aerial photography and divided by 3,300 SF. Customers will be charged the resultant number of ERUs minus approved credits. Examples: 34,000 SF/3,300 SF =10.3 ERU

16 Fee Structure—Nonresidential Nonresidential impervious surfaces will be measured off of aerial photography and divided by 3,300 SF. Customers will be charged the resultant number of ERUs minus approved credits. Commercial and Industrial Examples Examples: Left: 207,800 SF/3,300 SF =63.0 ERU Right: 2,000 SF/3,300 SF =0.6 ERU

17 Fee Structure—Nonresidential Nonresidential impervious surfaces will be measured off of aerial photography and divided by 3,300 SF. Customers will be charged the resultant number of ERUs minus approved credits. Institutional Examples Examples: Left: 238,236 SF/3,300 SF =72.3 ERU Right: 183,462 SF/3,300 SF =55.6 ERU

18 Total ERU Land UseImpervious SurfaceERU Multiple Residential and Nonresidential 3,816,9341,157 Single Family Residential (3 units or less) 2,151, Total5,968,5341,809

19 Rate Calculation Total Budget$65,100 Total ERU1,809 Annual Rate per ERU$36.00

20 Regional Examples Community Annual Cost/ERU Altoona $36.00 Barron $24.00 Chetek $27.00 Chippewa Falls $36.00 Eau Claire $62.00 Grantsburg $18.00 Menomonie $32.00 New Richmond $28.68 River Falls $37.68 Superior $70.80 Washburn $48.00

21 Credit System Credits for Available for Full Multiple Residential and Nonresidential (Commercial, Industrial, Institutional) 10%for modeled sediment removal 10%for modeled runoff volume control 20%maximum credit

22 Proposed Implementation Schedule TaskMonth Review and Finalize DataMay, 2010 Public Informational MeetingJuly, 2010 Adopt Summary of ChargesJuly, 2010 Final Ordinance ApprovalAugust, 2010 Create UtilityAugust, 2010 First Monthly Billing BeginsSeptember, 2010

23 Storm Water Utility City of Durand Questions?