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Stormwater Best Managementpractices (BMP's Spills This is one in a series of pamphlets describing storm drain protection measures. Other pamphlets include: Stormwater Sweep up dry spilled materials Automotive Maintenance & Car Care Best ManagementPractices immediately. Never attempt to bury (BMP’s): them or “wash them away” with water. Equipment Rentals Clean up spills on dirt areas by digging Food Service Industry up and properly disposing of contaminated soil. Fresh Concrete & Mortar Application Report significant spills to the appropriate spill response agencies General Construction & Site Supervision immediately. Heavy Equipment and Earthmoving Activities Clean up leaks, drips, and other spills immediately. Home Repair & Remodeling Never hose down “dirty” pavement or Horse Owners and Equine Industry surfaces where materials have spilled. Kennels Roadwork and Paving Recycling & Hazardous Landscaping, Gardening & Pest Control Waste Disposal Safe Environmental Habits and Mobile Washers and Cleaners Procedures for: Nurseries City of Modesto Road Crews Solid Waste Management Painting (209) 577-5494 Construction Crews Roadwork and Paving Seal Coat Contractors Stanislaus County Swimming Pool, Jacuzzi & Household Hazardous Waste Facility Fountain Maintenance (209) 525-4123 Home Builders For more information about storm drain protection or additional pamphlets, call: Developers To Report a Clogged Storm Drain General Contractors City of Modesto City of Modesto Inspectors Water Quality Control Division Stormwater Program (209) 577-6200 Site Supervisors To Report a Spill or Illegal Dumping www.modestogov.com (209) 577-6377 City of Modesto Environmental Compliance Section Water Quality Control Division Public Works Department Environmental Compliance Section (209) 577-6200 City of Modesto Public Works Department Water Pollution Prevention Use check dams, ditches or berms to divert runoff around excavations. It’s Up to Us: BEST MANAGEMENT Never wash excess material from exposed aggregate concrete or similar treatments into Modesto has two drainage systems-the sewers and PRACTICES a street or storm drain. Collect and recycle, the storm drains. The storm drain system was or dispose to designated wash out. designed to prevent flooding by carrying excess Cover stockpiles and other construction rainwater away from city streets and out to our materials with plastic tarps. Protect from rivers by way of catch basins or drainage into our rainfall and runoff. Rockwell system. General Business Practices: Because the storm drain system contains no filters, it now serves the unintended function of carrying Schedule roadwork and paving during dry Asphalt / Concrete Removal: urban pollution straight to our rivers, and weather eventually the ocean. Keep materials out of the rain. Store them under Avoid creating excess dust when breaking cover with temporary roofs or plastic sheets, asphalt or concrete This pamphlet tells you how to prevent river protected from rainfall, runoff and wind. After breaking up old pavement, be sure to pollution from “stormwater” or “urban runoff.” Develop and implement erosion and sediment remove all chunks and pieces from the site control plans for embankments. Make sure broken pavement does not come The Best Management Practices (BMP’s) will Use as little water as possible for dust control to in contact with rainfall or runoff ensure cleaner rivers and a cleaner city. avoid excess runoff of sediment. Protect nearby storm drain inlets during saw-cutting. Shovel or vacuum saw-cut ONLY RAIN DOWN THE DRAIN slurry deposits and remove from the site. Never hose down streets to clean up tracked Roadwork and Paving Vehicle & Equipment Maintenance: dirt. Use wet/dry sweep methods. Potential Pollutant Sources Maintain all vehicles and heavy equipment. Inspect frequently for leaks. Employee & Client Education: Soil excavation and grading operations often Conduct all vehicle/equipment maintenance and contribute to urban runoff pollution. By loosening refueling at one location - away from storm ¾ Educate your employees. Include water large amounts of soil and sediment, earthmoving drains. quality training in new employee activities can cause sediment to flow into gutters, Perform major maintenance, repair jobs and orientations and conduct annual review storm drains and our rivers. vehicle/equipment washing off-site. sessions. Use gravel approaches where truck traffic is Sediment is the most common pollutant washed frequent to reduce soil compaction and limit the ¾ Educate your customers. Post BMP’s from work sites, creating multiple problems once tracking of sediment into streets. where clients and employees can see them. it enters our rivers. Use drip pans or drop cloths to catch drips and spills. Sediment clogs the gills of fish, blocks light Do not use diesel oil to lubricate equipment or transmission and increases a river’s water parts. temperature, all of which harm aquatic life, disturbing the food chain upon which both fish and people depend. During Construction: Sediment also carries with it other work-site pollutants such as pesticides, cleaning solvents, Avoid paving and seal coating in wet weather, or cement wash, asphalt and car fluids like motor oil, when rain is forecast before fresh pavement will grease and fuel. Thus, poorly maintained vehicles have time to cure. and heavy equipment leaking fuel and oil at the Cover and seal catch basins and manholes when construction site also contributes to river applying seal coat, slurry seal, fog seal etc. pollution. .
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