KEY FACTS ABOUT THE CITY OF HUBBARD WATER POLLUTION CONTROL FACILITY
Bar Screens
Type Size Bar Size Bar Spacing	1-Mechanical, 1-Manual 5' - 0" 3/8" x 2" 1.5"
Grit Collectors
Type Capacity (each)     Motor Channel Size Conveyor	2-Chain & Bucket 8.0 million gallons/day 1.0 HP 2- 5' x 50' 1-12" diameter screw
Aeration Tank
Total BOD Loading Aeration Volume Loading Rate Detention Time MCRT Oxygen Requirements Disc Assemblies	3,500 lbs/day 2,109,890 gallons 12.4 #BOD/1,000 c.f. 24 hours 28 days 525 lbs/hr 2- 25 HP, 4- 40 HP
Final Clarifiers
Type Size Capacity Detention Time	2- Suction/Scraper 75' diameter x 13' SWD 429,593 gallons 9.8 hours
Chlorine Contact Tank
Capacity Detention Time	164,912 gallons 13 minutes @ 2.1 mgd 15 minutes @ 16.0 mgd
Sludge Storage Tank
Type Size Capacity Solids Retention Time Loading Rate	Aerated 40' X 12' SWD 216,192 gallons 6.43 days 0.81 lbs VS/days/s.f.
Air Blowers
Type Air Supply (each) Motor	2-Centrifugal 2,000 scfm @ 10 psi 125 HP
Belt Filter Presses
Type Capacity Minimum Cake Solid	2-2.0 Meter 1,000 lbs dry 30%
Emergency Generator
Type Number Capacity (each)	Diesel Powered 2 400 kw