1. 1-877-OAKSON1 www.oaksoninc.com RainKeeper: Rainwater Harvesting Systems

2. RainKeeper: On-site Rainwater Harvesting

3. The RainKeeper Process: 1.Collection/Filtration 2.Storage 3.Water Re-use 4.Overflow

4. July 2005

5. August 31, 2005

6. RainKeeper Benefits: Easy to install Scalable Little-to-no maintenance Convenient access during a water ban Various applications Saves money and resources Environmentally friendly

7. Collection and Filtration: 1” rainfall = 623 gallons for 1000 sq. ft. roof Avg. 44” rainfall/year = 27,412 gallons

8. Collection and Filtration: In-line downspout filter

9. Collection and Filtration: Volume filter

10. Collection and Filtration: Volume filter at site

11. Collection and Filtration: Telescopic riser for volume filter

12. Storage: 1500-gallon poly tank

13. Storage: Calmed inlet

14. Water Re-use: Floating intake with check valve

15. Water Re-use: Pump and floating intake with check valve

16. Water Re-use: Floating Pump Intake

17. Water Re-use: On demand controller

18. Water Re-use: Outside mounted controller with quick disconnects

19. Overflow: Standard overflow siphon and mono/duo units

20. Overflow: Overflow siphon being constructed

21. RainKeeper Internal Components

22. RainKeeper System In Ground Filling tank for testing, awaiting final backfill

23. Water Level Monitoring System Integrates supplemental source for low water levels

24. Environmental Benefits of RainKeeper: Recharge water on site Reduce use of potable water Reduce impact to storm water systems Reduce storm surge events

25. Services we provide: Design assistance On-site delivery Installation support

26. 1-877-OAKSON1 www.oaksoninc.com Questions?