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Youngstown Airforce Base 3976 King Graves Road 910 AW/COER Youngstown-Warren RGL/ARPT ARS Vienna, Ohio 44473-0910 Phone: 330-609-1786 Size: $1,297,000.00 Type: Biological oxidation, TTO removal Industry: Aircraft Overhaul Project Engineer: Bob Woods Project Completion: October 1997

Turn-key wastewater treatment installation to include underground collection system with man holes and 40X60 engineered metal building, two @ 20,000 gal below grade collection, equalization tanks, liquid solid separator, treat wastewater from washing and repairing aircraft. Surety bond provided for project. HEI designed, manufactured and installed the following:

1. Collection system from seven buildings
2. Lift station 30’ deep
3. Oil water separator
4. Bio-reactor to remove soluble organic compounds
5. Dissolved air flotation
6. Sand filter
7. Carbon filter
8. Filter press
9. Sludge thickener with motorized rake