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San Francisquito Creek LTMAP Newell Road Station Water Year 2006

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San Francisquito Creek LTMAP Newell Road Station Water Year 2006

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    1. San Francisquito Creek LTMAP Newell Road Station Water Year 2006 Brad Eggleston City of Palo Alto brad.eggleston@cityofpaloalto.org (650)329-2104

    3. San Francisquito Creek at Newell Road

    4. Water Year 2005 and 2006 Sample Events

    5. Dissolved Copper Data

    6. Dissolved Nickel Data

    7. Dissolved Lead Data

    8. Hardness Data

    9. Total Suspended Solids Data

    10. Total Mercury Data

    11. Mercury Comparison

    12. Pyrethroids Started for WY05 Pyrethroids included in Caltest GC/MS analytical method: Bifenthrin Cyfluthrin Cyhalothrin Cypermethrin Danitol Fenvalerate Fluvalinate Permethrin Resmethrin Tralomethrin Pyrethroids were non-detect for all 12 sampling events Reporting limits ranged from 10 to 50 ng/L Pyrethroids known to sorb to soil particles ?need sediment sampling

    13. Polycyclic Aromatic Hydrocarbons (PAHs) Austin, Texas and USGS found high levels of PAHs in streams Coal Tar parking lot sealcoats high in PAHs compared to asphalt For WY06 Newell program: added EPA 610 analysis All results from 5 samples ND (one j-flag detect at 0.024 ppb for pyrene)

    14. Coming Soon! Data Review and Analysis Suggest alternate analytical methods for ND data Assess temporal and spatial trends for data from all sites Compare LTMAP data with historical creek data where available Check compliance with water quality objectives Assess correspondence of pollutant data with creek flow Provide written report of findings and recommendations

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