2019-040 - Mainplace Mall Transformation

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Road and Street Maintenance SNO i Test and inspect spray equipment prior to starting to paint. Tighten all hoses and connections and do not overfill paint container. i Plug nearby storm drain inlets prior to starting painting where there is significant risk of a spill reaching storm drains. Remove plugs when job is completed, i If sandblasting is used to remove paint, cover nearby storm drain inlets prior to starting work. i Perform work on a maintenance traveler or platform, or use suspended netting or tarps to capture punt, rust, paint removing agents, or other materials, to prevent discharge of materials to surface waters if the bridge crosses awatercourse, If sanding, use a sander with a vacuum filter bag. i Capture all clean-up water, and dispose of properly. i Recycle punt when possible (e.g. paint maybe used for graffiti removal activities). Dispose of unused paint at an appropriate household hazardous waste facility, Graffiti Removal i Schedule graffiti removal activities for dry weather, i Protect nearby storm drain inlets prior to removing graffiti fromwalls, signs, sidewalks, or other structures needing graffiti abatement. Clean up afterwards by sweeping or vacuuming thoroughly, and/or by using absorbent and properly disposing of the absorbent. i When graffiti is removed by painting over, implement the procedures under Painting and Paint Removal above. i Direct runoff from sandblasting and high pressure washing (with no cleaning agents) into a landscaped or dirt area. If such an area is not available, filter runoff through an appropriate filtering device (e.g. filter fabric) to keep sand, particles, and debris out of storm drains. i If graffiti abatement method generates wash water containing a cleaning compound (such as high pressure washing with a cleaning compound), plug nearby storm drains and vacuum/pump wash water to the sanitary sewer, i Consider using a waterless and non -toxic chemical cleaning method for graffiti removal (e,g. gels or spray compounds), Repair Work Prevent concrete, steel, wood, metal parts, tools, or other work materials from entering storm drains or watercourses. i Thoroughly cleanup the job site when the repair work is completed. i When cleaning guardrails or fences follow the appropriate surface cleaning methods (depending on the type of surface) outlined in SC-71 Plaza & Sidewalk Cleaning fact sheet. January 2003 California Stormwater BMP Handbook 5 of 9 Municipal www.cabmphandbooks.com