PRESENTATION FOR CITY OF PLAQUEMINE

1. PRESENTATION FOR CITY OF PLAQUEMINE PLAQUEMINE REGIONAL WASTEWATER TREATMENT PLANT • Prepared by: • Professional Engineering Consultants Corp. • 7600 GSRI Avenue, Baton Rouge, LA 70820 • 225.769.2810 / 225.769.2882 (fax) • www.pecla.com • September 25, 2012

2. Presentation for City of Plaquemine New Plant Overview • Project Cost Estimate for New WWTP, South WWTP Upgrades and Electrical Upgrades is $14,000,000 • Designed for 2 MGD (average flow) and 8 MGD (peak flow) • Current plant treats approximately 0.8 MGD • Plant designed to handle growth in the area

3. Presentation for City of Plaquemine Site Location St. Louis Rd./ Tenant Rd. MSA ACADEMY LA-1 WWTP SITE

4. Presentation for City of Plaquemine Plant Facilities • Headworks: screening and grit removal equipment as well as solids/grit dewatering equipment • Aeration Basins: activated sludge aeration basins (concrete) with aeration equipment and flow control weirs • Clarifiers: two 70’ dia concrete tanks complete with weirs and sludge collection/removal equipment • Chlorination Basins/Equipment: concrete basins with disinfection equipment for (liquid NaOCl), flow measurement and sampling equipment • Effluent Pump Station: pump station which will pump effluent thru existing force main to the Mississippi River

5. Presentation for City of Plaquemine Plant Facilities cont. • Return Activated Sludge (RAS) System: pumping station to control return activated sludge and waste sludge as necessary • Sludge Digestion/Basin: concrete basin to store and digest sludge prior to ultimate disposal • Sludge Dewatering System: equipment/system housed in designed building to dewater sludge and prepare it for ultimate disposal • Scum Pump Station & Drainage Pump Station • Operations/Administration/Lab Building: multi-use building for controlling and administering plant operations as well as running some lab tests for process optimization

6. Plant Layout Presentation for City of Plaquemine

7. Plant Layout (alternate)

8. Presentation for City of Plaquemine Administration Building

9. Presentation for City of Plaquemine Equipment • Visited other Wastewater Treatment Plants in Louisiana and Mississippi with the City of Plaquemine Utilities Department to see some of the proposed equipment in action and determine what would and wouldn’t work for the City’s needs.

10. Presentation for City of Plaquemine Headworks Structure & Equipment

11. Presentation for City of Plaquemine Headworks Structure & Equipment cont.

12. Presentation for City of Plaquemine • Oxidation Structure & Equipment

13. Presentation for City of Plaquemine • Oxidation Structure & Equipment cont.

14. Presentation for City of Plaquemine • Clarifier Structure & Equipment

15. Presentation for City of Plaquemine • Aerobic Digester Structure & Equipment

16. Presentation for City of Plaquemine • Aerobic Digester Structure & Equipment cont.

17. Presentation for City of Plaquemine • Beltpress Equipment

18. Presentation for City of Plaquemine Existing South WWTP • The existing South Plant will be converted into a Raw Water Pump Station which will pump to the new plant via the existing 20’’ force main. In addition, the existing plant’s aeration and clarifier basins will be converted to emergency overflow basins.

19. Presentation for City of Plaquemine Existing South WWTP cont.

20. Presentation for City of Plaquemine Electrical Upgrades • The City’s electrical system will have to be extended and upgraded to supply electricity to the new plant site. In addition, a spare transformer will be installed for redundancy and reliability.

21. Presentation for City of Plaquemine Questions?