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BEsT MANAGEMENT PRACTICEs HANDbooK - Tahoe BMP

BEsT MANAGEMENT PRACTICEs HANDbooK - Tahoe BMP

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4.2.1.1 ABRASIVE AND DEICER <strong>MANAGEMENT</strong>Alternative Names: Road Sand, Road Salt, Traction Abrasive, BriningDESCRIPTIONRoad abrasives and deicers are applied on Lake <strong>Tahoe</strong> Region roads andparking lots to improve traffic safety during the winter. These practices canhave negative impacts on water quality and other resources such as vegetation,soils, and air quality. This <strong>BMP</strong> provides guidelines for managing road abrasiveand deicer applications primarily with the use of best available technology(BAT). The intent of the guidelines is to improve water quality throughincreased efficiency of operations without diminishing traffic safety. Theguidelines do not set numerical targets for the mass of road abrasives thatshould be applied, as specific operational practices necessary to ensure trafficsafety are the responsibility of each jurisdiction maintaining roads within theLake <strong>Tahoe</strong> Region.APPLICABILITYAll Lake <strong>Tahoe</strong> Region roads and parking lots where road abrasives and deicersare applied to provide safer driving conditions.<strong>BMP</strong> DESIGN APPROACHPollutant SourceControlHydrologic SourceControlStormwater TreatmentSCALE OF APPLICATIONAll SFR and MFR < 1acreMFR 1-5 Acre andCICU < 5 acresMFR and CICU > 5acres and all WQIPs<strong>BMP</strong> TYPETemporaryPermanentAdvantages• Can reduce the discharge of road abrasives and deicers to receiving watersor other sensitive areas (e.g., SEZs).• Can reduce maintenance requirements for downstream stormwatertreatment and infiltration <strong>BMP</strong>s.• May cost effectively reduce pollutant loading, including fine sedimentparticles, from roads and parking lots.Disadvantages• There may be increased costs associated with procurement of newequipment, training, and support services.DESIGN AND OPERATION CONSIDERATIONS• Keep accurate records of all road abrasive and deicer applications, includinglocation, date/time, and application rate.• Material storage facilities should be designed to protect surface andgroundwater quality:• Store road abrasives and deicing materials on paved surfaces, protectedfrom precipitation and runoff by covered three-sided bins or otherstructures. Face openings away from prevailing winds.• Thoroughly sweep the loading pad after loading.TRPA <strong>BMP</strong> HandbookChapter 4: <strong>BMP</strong> Toolkit2012 4.2.1.1-Abrasive and Deicer ManagementPage 1

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