1. North Creek Ozone Treatment Pilot Project
July 3, 2007

2. Background
Quantum Ozone, Inc. approached City last year for a site to test their prototype patented ozone treatment system in an urban runoff application.
City worked with Quantum and RWQCB to develop a testing protocol to monitor the effectiveness at North Creek.
Results show promise with reduction of bacteria and metal counts & improved plant and animal habitat.
Quantum has paid for pilot program treatment and testing up to this point.
City Council has approved FY budget for this project.

3. Feedback Results So Far
RWQCB supportive of project and interested in continued testing – so far data looks promising
Average reduction in heavy metals (Ni, Cu, Zn, Cd) of 31-62% (due to enhanced adsoprtion and settling in hydrodynamic separator)
Significant reduction in bacteria (close to Rec-1 Standards – more fine tuning expected with pilot project (should be noted; however with increased wildlife, bacteria does increase downstream, which is expected in productive natural habitats – hopefully Epi Study will provide some better testing techniques)

4. Feedback Results So Far, Cont’d.
Anecdotal positive feedback – State Park staff, residents – increased water clarity, wildlife, aquatic life and vegetation, no odors
City’s Ocean Water Quality Subcommittee, MiOcean & RWQCB support 1-year pilot project

5. Pilot Project – July 2007
Implementation contract to Council for approval tonight.
Lease system through summer and winter season to continue testing (end April 2008 for final evaluation)
Work with RWQCB to develop cost-effective testing protocol
Continue to evaluate data, condition of the creek, public feedback, beach conditions.
North Creek is not being diverted during pilot project
As City has been a leader in innovative solutions to water quality issues,

6. Vicinity Map
Existing CDS Unit & and site of Ozone System in fenced area
Discharge of treated water to open channel
North Creek (open channel)
North Creek Outlet to Doheny Beach

7. System & General Information
The UV/ION In-Situ Storm Water System is:
equipped with automatic systems to operate via on-line or GPS for easy monitoring.
environmentally and green energy friendly.
equipped to give continuous ozone delivery 24/7/365 where needed.
designed to require no filters or UV lights
Application method: In-situ injection type.
Ozone: Can generate ozone from 1% to 7% by weight or higher.
Treatment Volume: Can treat from 1 to 1000 GPM.
Air: Can operate on air or pure oxygen.
Energy: Can operate on standard 110 volts (green energy optional).
Maintenance: Minimum maintenance.

8. Enhance Habitat & Wildlife
Turtle in North Creek
Ducks and healthy vegetation

9. Before & After Photos
March 2006
Jan/Feb 2007

10. Before & After Photos March 2006
Jan/Feb 2007 – improved clarity, no odor, aquatic vegetation, decreased algae

11. Questions?