1. City Council Storm Water Presentation March 6, 2014

2. Presentation Outline Background and Philosophy Functions Financial Structure Future

3. Background and Philosophy Stormwater Management History 1972 – Clean Water Act National Pollutant Discharge Elimination System (NPDES) TCEQ to regulate stormwater discharge in Texas through the TPDES 1987 – Water Quality Act Permits for stormwater discharge for municipalities and industrial sites 1990’s – Phase I cities (100,000+ pop.) 1999 – Phase II cities (under 100,000 pop.)

4. Background and Philosophy Stormwater Management History 2007 – TCEQ adopts Municipal Separate Storm Sewer System (MS4) General Permit for Phase II cities 5-year permit to discharge stormwater Cities must create Stormwater Management Program Full implementation of SWMP by the end of the term 2008 – City of San Angelo adopts its SWMP Phased implementation over 3-4 years 2010 – City of San Angelo implements Stormwater Utility Fee to fund the SWMP (adopted 12/15/09)

5. Background and Philosophies (continued) Initial 5-yr Permit through August 2012. Currently in our second permit term Adopt 33 BMPs (Best Management Practices) to address the following MCMs (Minimum Control Measures): 1. Public Education 2. Public Involvement / Participation 3. Illicit Discharge Detection and Elimination 4. Construction Site Regulations 5. Post-Construction Regulations 6. Pollution Prevention / Good Housekeeping for Municipal Operations

6. Background and Philosophies (continued) Impaired water bodies: Federal Clean Water Act Section 305(b) and 303(d) Concho River east of Bell Street Bridge was removed from the 303(d) list. As a result of the efforts related to the MCMs and BMPs

7. Background and Philosophies (continued) UCRA partnership Public education Classroom education Stormwater sampling & analysis Stormwater Master Plan Stormwater system modeling with Tarleton State Univ.

8. Stormwater Division Community Development Department Operations Department Engineering Services Stormwater Engineering Stormwater Operations GIS

9. Functions - Engineering City Engineer is responsible for facilitating the management, design functions, and state reporting functions of the storm water program Design and draft plans and drawings regarding storm sewer systems Inspection and citation issuance, oversight, and authority GIS mapping and plotting Facilitate and monitor the UCRA Interlocal Agreement and the responsibilities outlined within

10. Functions – Operating and Maintenance Routine Maintenance – on-going practice to prevent deterioration of storm water systems to negate the degradation of water quality. Mowing of 326 acres Storm Drain Cleaning 12 miles of small open channels unknown miles of larger channels 11 miles of underground storm drains identified Street Sweeping 1050 curb miles 4000 tons of spoils collected annually

11. Functions - Projects Project Completion – maintenance to improve, or positively affect, storm water quality or negate damages associated with storm water runoff Examples of Maintenance Projects Outfall repair on Jackson Street Outfall repair on E. 24th Street Outfall stabilization and erosion prevention on College Hills & Grandview Culvert replacement on Red Bluff Road Drainage conduit repair on Red Bluff Circle Culvert replacement on Hillside Drive

12. Capital Improvement Projects River Bank Stabilization – bank stabilization along the Concho River in conjunction with the river improvement project $587,000 Avenue P Project – drainage improvement under Ave P to prevent flooding and erosion $340,000 Red Arroyo Walking Trail – hiking/biking trail along Red Arroyo from Sherwood Way to Knickerbocker Road $400-500k of FY’14 money Future Proposed Projects: Sunset Lake Dredging; Parkview Lake Dredging; Hydrodynamic Separators along the River; Repairs and Replacement of Underground Storm Drains

13. Expenditures (continued) Personnel and Benefits Utilities Fuel Vehicle Maintenance Street Sweeping Vegetation Management Drain Repair Erosion Control Outfall Stabilization Drain and Inlet Cleaning Engineering Services Education Storm Sewer System Inspections Construction and SWP3 Inspection Industrial Inspections Operational Expenditures Comprises the budget for daily operations Examples include:

14. Fee Structure Two basic fee schedules per Ordinance Section 8.1900 Single Family Residential – Four Tiers 1: <= 1000 sqft of impervious surface= $ 2.00 2: 1,001 to 2,000= $ 3.00 3: 2,001 to 3,000= $ 4.00 4: > 3,000= $ 5.00 Non-Residential – Six Tiers 1:<= 5,000 = $ 7.50 2:5,001 to 15,000= $ 15.00 3:15,001 to 50,000= $ 30.00 4:50,001 to 150,000= $100.00 5:150,001 to 500,000= $300.00 6:> 500,000= $500.00

15. Revenues - Historic Fiscal Year TotalTotal RevenueNon-ResidentialResidential FY' 11 $2,581,279.76 $1,450,977.00 $1,130,302.76 FY '12 $2,581,346.68 $1,445,762.68 $1,135,584.00 FY '13 $2,611,643.68 $1,466,706.30 $1,144,937.38 FY ‘14 projected$2,695,000.00$1,513,520.00$1,181,480.00

16. Storm Water Fund FY’14 Budgeted Revenues: $2,698,000 FY ‘14 Amended Budgeted Expenses: $3,059,500 $2,698,000 = O&M, Equipment, Projects Budget $ 360,000 = Ave P Project Carryover $ 1,500 = Ave P Easement Carryover Current Fund Balance $1,887,776 75 Day Fund Balance $ 628,665 Remaining Bal. for Equip. Repl. $1,259,111

17. Storm Water Fund Annual Budgeted Revenues $2,698,000 O&M Expenses$1,710,507 Projects$ 500,000 Equipment & Vehicles$ 350,300 Added to Fund Balance$ 137,193

18. Future Developments Increased demands due to permit changes and increased responsibilities as City’s population grows over 100,000 Improvement of downtown storm sewer system and other underground infrastructure issues Discussions of fees and issues regarding funding Quantity issues

19. Freese and Nichols Study Existing Drainage Problems Master Drainage Plan Completed in 2000 Identified and prioritized 57 existing drainage problems Estimated $46 million for repair and replacement Ranking System Criteria 1. Traffic/Street Type 2. Degree of Problem Based on Severity of Storm Event 3. Velocity of Storm Water 4. Cost/Benefit 5. Ability to Solve Adjacent Problems 6. History of Flooding Structures 7. Number of Flooding Structures

20. Background and Philosophies (continued) Top 25 Key Study Elements

21. Highest Ranked Problem Areas Bell St. at Koberlin, #1, $2.6M W. Ave. P at Bryant Blvd, #2, $1.9M

22. Other Problem Areas Southwest Blvd. at Red Arroyo, #7, $4.2M Beauregard Ave. from Campus to N. Concho River, #8, $2.8M Howard Street from North St. to Webster St., #9, $0.4M College Hills Blvd. from Sunset Blvd. to Red Arroyo, #12, $7.8M Goodfellow Draw at Evelyn Ave., #20, $3.5M 24 th St. at Blum St., #21, $1.2M