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<br />Prepared by: Bolton & Menk, Inc. MCM 6: MUNICIPAL OPERATIONS BEST MANAGEMENT PRACTICES <br />Orono SWPPP ǀ 0C1.126140 Page 5 <br />safety cans. Lids of safety containers should be kept closed, as well as doors of <br />storage cabinets. <br />b) Make sure an adequate spill kit with sufficient equipment and supplies is located <br />near storage areas where spills are possible. Clean up any spills, leaks, or <br />discharges immediately. <br />c) Flammable and combustible materials must be isolated from ignition sources. <br />d) Proper fire suppression equipment should be installed or available in storage or <br />use areas. <br />3. General BMPs for significant materials: <br />a) Do not combine wastes when storing them - this increases safety, recycling and <br />disposal options and reduces disposal costs. <br />b) Never mix waste oil with fuel, antifreeze or chlorinated solvents. <br />c) Use secondary containment on all bulk fluids stored in amounts more than 55 <br />gallons and wastes to prevent accidental discharge. Secondary containment <br />includes, but is not limited to, berming around storage areas and use of <br />absorbents. <br />d) Keep storage areas clean and dry. Conduct regular inspections of storage areas <br />to detect leaks and spills. <br />e) Store new or used batteries securely to avoid breakage and acid spills during <br />earthquakes. When stored outdoors, batteries shall be covered with plastic tarp <br />to protect them from rain. <br />f) Recycle old batteries. <br />g) Wood products treated with chromated copper arsenate, ammoniacal copper <br />zinc arsenate, creosote, or pentachlorophenol should be covered with tarps. <br /> Landscaping, Park, and Lawn Maintenance <br />Responsible Party: Parks Superintendent <br />Landscaping and lawn care practices have a significant impact on stormwater runoff. <br />Conventional lawn care practices often include watering too frequently, over-fertilizing, and <br />the use of pesticides and/or herbicides to rid lawns of unwanted pests and nuisance or <br />invasive plants. Excess nutrients and pesticides wash away during rain events or when lawns <br />are over-watered. The stormwater management approach to lawn care uses a variety of <br />techniques to reduce pollution in stormwater runoff from lawns. <br />1. General practices include: <br />a) Perform mowing at optimal times, which does not include prior to significant <br />forecasted rain events. <br />b) Protect lakes, ponds, wetlands, and/or lagoons adjacent to landscape <br />maintenance activities. <br />c) Mulch-mow grasses whenever possible. <br />d) Dispose of organic wastes by composting whenever possible. When composting <br />is not possible, dispose of organic wastes in an approved disposal facility. Do not <br />wash down or dispose of lawn clippings, leaves, tree trimmings, or other <br />landscape waste in or near a storm drain, drainage ditch, or open body of water.