1. Execute Purchase Order South Shore Water Reclamation Facility Building 359 Odor Control System Repairs Commission Agenda Item #8

2. Building 359-Sludge Dewatering Building
Primary Sludge from JIWRF and SSWRF:
Sent to 3 receiving wet wells
Thickened on 3 Gravity Belt Thickeners (GBTs)
Thickened sludge then sent 6 storage tanks, then pumped to digesters

3. Bldg. 359

4. Wet Wells and Storage Tanks in Basement
GBTs on First Floor

5. Bldg. 359 Odor Control System
3 fiberglass vessels containing odor-adsorbing carbon media
Ducts from wet wells and storage tanks to odor control vessels
5 blowers exhaust odorous air from wet wells and storage tanks, through carbon vessels to atmosphere

6. Bldg. 359 Odor Control System
Exhausted Treated Air
Ducts from Bldg. 359
Fiberglass vessels
Blowers

7. Bldg. 359 Odor Control System
31 years old
Hasn’t operated for many years
Infrequent odor complaints did not warrant repairing the equipment
Renewed focus on reducing plant odors, staff recommends repairing system and operating again

8. Contract Scope Remove and dispose of spent carbon
Inspect odor control vessels to determine their condition
Repair vessels as necessary
Install new carbon

9. Project Bid VWM competitively bid the work
1 bidder: Butters Fetting Co.
Within budget
VWM will manage and oversee the work
90 day duration

10. QUESTIONS?
No need in this case to re-state the request.