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Appendix C Maintenance BMWs a Use materials only where and when needed to complete the maintenance activity. Consider the use of C,21 Safer Alternative Products when possible. Reduce or eliminate use of hazardous materials on slte when possible. I � a Dispose of any paint thinners, residue and sludge(s),that cannot be recycled, as hazardous waste, x fl For water-based paint, clean brushes to the extent practical, and rinse to a drain leading to a sanitary r sewer where permitted, or into a concrete washout pit. For oil-based paints, clean brushes to the extant practical and filter and rause thinners and solvents. o .When loading and mixing pesticides,control water use to reduce potential for unpermitted non- stormwater discharges (e,g., provide a positive shutoff type of hose.nozzle). Do not over-apply fertilizers and pesticides. Prepare only the amount needed.Strictly follow the recommended usage instructions.Apply surface dressings in smaller applications, as opposed to large applications,to allow time for it to work In-and to avoid excess materials being carried off-site by runoff. o Avold.exposing applied materials to rainfall and runoff'unless sufficient time bas been allowed.for them to dry..Application of herbicides and pesticides shall be performed by a licensed applicator. o Keep a supply of spill cleanup material near material use areas.Train employees in spill cleanup procedures. See 0.13.1 Spill Prevention and Control when using liquid materials In activity sites and facilities. o Secure loads and cover loose materials in open-bed trucks during hauling to activity sites. o Truck beds should be inspected after the completion of material delivery to avoid depositing_ materials on,the roadway. o Use proper loading and unloading techniques to prevent spills. ,s. 103 Caltrans Stormwater Quallty Handbook-Maintenance Staff Guide May 2018