1. Airports Sampling Plan Update May 4, 2005 South Coast AQMD Sumner Wilson Principal Air Quality Instrument Specialist Special Monitoring Group

2. Sampling Arrays Four Each - Runways and Downwind Community - Yellow Map Markers 24 Hour Lead, PM 2.5, and Carbonyl 8 Hour VOCs, and Carbonyl Samplers Continuous Carbon Monoxide (CO) Continuous Ultrafine Particle Counter Three Each - Areas to the Side of Runways – Blue Map Markers 24 Hour Lead CO Sensors

3. Siting Requirements General Samplers Placed at Least 33 Feet From Trees No Air Flow Obstructions Setback From the Curb of Major Roadways Noise From Instruments Security Accessed 2 or 3 Times Each Week by Technician Runways and Downwind Community Sites No Containers Will Be Used 110 VAC, 40 Amp Service Area to the Side of Runways 110 VAC, 20 Amp Service

4. Van Nuys (VNY) Wind Rose

5. Van Nuys Airport Map

6. Van Nuys Sites Site # Site Type LocationStatus 1 YellowHolmes SchoolNegotiating 2 YellowMid Valley LibraryNo Contact Yet 3 YellowVOR SiteWorking w/Airport 4 YellowLA ParksNegotiating 5 BlueNat. GuardWorking w/Airport 6 BlueAirtelWorking w/Airport 7 BlueCohasset SchoolNegotiating

7. Santa Monica (SMO) Wind Rose

8. Santa Monica Airport Map

9. Santa Monica Sites Site # Site Type LocationStatus 1 YellowWest TarmacWorking w/Airport 2 BlueFire StationWorking w/Airport 3 BlueSouthNo Site Yet 4 YellowEast TarmacWorking w/Airport 5 YellowRichland Elementary Negotiating 6 YellowWebster Middle School Negotiating 7 BlueNo Site Yet