1. Manufactured Treatment Devices Pilot Update 2014

2. Types of MTDs? Hydrodynamic Separators Cartridge Filters Biofiltration In a Box Trash Capture

3. Why MTDs? Small footprint Retrofit opportunities Less costly Simple maintenance routine Reduced system maintenance

4. Déjà vu? “Traps” installed in early ‘90s 16 routes/170 inlets proposed 3 routes/~80 inlets remain

5. Renewed focus in downtown Shoal & Waller creeks ◦ Lower Shoal Seaholm Redevelopment District ◦ Waller Creek District Surface Improvements Watershed Capital Projects ◦ Lower Shoal Stream Restoration$4M ◦ Lower Shoal WQ Retrofit$500k ◦ Waller Tunnel & Improvements$149M ◦ Waller WQ Retrofit$2.5M Lower Shoal PER Background Bio Clean Inlet Basket

6. Bio Clean Inlet Basket

7. Pilot One year 7 locations 6 week schedule Data collected o Time o Weight

8. In service… 6 th @ Trinity Barton Springs @ S. 1st

9. Vermiculture?

10. A helping of leaves with your trash

11. Ick-factor

12. Findings 17 Traps17 Baskets # minutes per route 30272 # visits per year 5212 # of crew per visit 42 manhours per year 104109 full time equivalent (FTE).05.052 labor cost/ yr @ $19.28/hr $ 2005 $ 2098 lbs collected per year 13264284 $/lb collected $ 1.51 $ 0.49 Field ops data 6 th street trap route Extrapolated pilot data

13. Pilot Report