Transcript Slide 1
North Creek Ozone Treatment Pilot Project July 3, 2007 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 FY2007-2008 budget for this project. 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) 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 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 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 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. Enhance Habitat & Wildlife Turtle in North Creek Ducks and healthy vegetation Before & After Photos March 2006 Jan/Feb 2007 Before & After Photos March 2006 Jan/Feb 2007 – improved clarity, no odor, aquatic vegetation, decreased algae Questions?