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1' Control Inspector's Manual 2) Equipment Maintenance and Repair Maintenance and repair of construction machinery and equipment should be confined to areas specifically designated for that purpose. Such areas should be located and designed so that oils, gasoline, grease, solvents and other potential pollutants cannot be washed directly into receiving streams, stormwater conveyance systems, or existing and _. potential welifields. 'These areas should be provided with adequate waste disposal receptacles for liquid and solid wastes. Maintenance areas should beinspected and cleaned daily. .l On a construction site where designated equipment maintenance areas are not feasible. exceptional care should_ be taken during each individual repair ormaintenance operation to prevent potential pollutants from becoming available to be washed into streams or conveyance systems. Temporary waste disposal receptacles should be provided and emptied as required. 3) Storm Sewer Inlet Protection Inlets to storm sewers.should be protected by suitable filtering devices during construction to keep pollutants from entering conveyance systems. See STORM DRAIN INLET PROTECTION - Section 4.08 (ES BMP 1.08). 4) Waste Collection and Disposal A pian; should be formulated for the collection and. disposal of waste materials on. a construction site. Such a plan should designate locations for trash.and waste receptacles and establish a specific collection schedule. Methods for ultimate disposal ofwaste should be specified and carried out according to applicable local and state health and safety regulations. Special provisions should be made forthe collection, storage, and disposal of liquid wastes and toxic or hazardous materials. Receptacies and other waste collection areas should be kept neat and orderly to the extent possible. Trash cans should have lids and dumpsters should have covers to prevent rainwater from entering. Wasteshould not be allowed to overflow .its container or accumulate for excessively long periods of time. Trash collection points should be located where they wilt least likely be affected by concentrated stormwater runoff. 5) Demolition Areas Demolition projects usually generate large amounts.of dust with significant concentrations of heavy metals and othertoxic pollutants. Dust control. techniques shouid.be used:to limit. the transport of the airborne pollutants. However, water or slurry' used to control dust should be retained on the site and not be allowed to rundirectly into watercourses or stormwater conveyance systems. 6)' Washing Areas Vehicles such as cement or dump trucks and other construction equipment should not be washed at locations where .the runoff will flow directly into a watercourse or stormwater 4-4