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7 he addition of lime can affect the pH (or acidiry)of runofT, µhich can adversely affect nearby sensiti��c surface <br /> uaters. importation of topsoil is preferred over heavily liming and fertilizing cxposed subsoil. <br /> 4-2.1.4 B11'II' C1.40 SOLID WASTE IiANDLING AND DISPOSAL <br /> Solid wastc is one of the major pollutants resulting from construction. It is gcncrated from trecs and shrubs <br /> removed during land clearing and human and building waste during thc installation of s[ructures. <br /> The following practices control and reducc solid waste on construction sitcs: <br /> - Provide adequate disposal facilities on the construction sile. <br /> - Rcmove and dispose of collected solid��aste at authorized disposal areas. <br /> - Label waste conteiners and locate thcm in a co�crcd arca. };ecp lid� closed at all umcs. <br /> - Salvage and recycic any uscful materials. <br /> - Conveniently locate and maintain sani+aq•facilities. <br /> - Selcctivelv rcmove trees and other beneficial vegetation. <br /> 4-2.15 BNII' C1.50 USE OF CHEMICALS/HAZARDOUS PRODUCTS DiJRING CONSTRUCTION <br /> Many types of chemicals may be used during construction activities. These chemical pollutants include paints, <br /> acids for cleaning masonry surfaces,cleaning solvents,asphalt products, soil additives used for stabili�ation and <br /> other purposes, concrcte•curing compounds,and many others. Thcsc matcrials can bc carried b}•scdiment and <br /> runofl from construction sites. <br /> A Icrge percentage of these pollutants can be effectively controlled through implementation of source control soil <br /> _ erosion und sediment control practices. By using only thc rccommended amounu of these materials and applying <br /> them in a proper manner,pollution can bc furthcr reduced. As in the case of other pollutants, good housekeeping <br /> is thc mest important means of controlling pollution. <br /> Thc corrcct method of disposal of wastcs var6es with the material. Wash•up waters from �a�atcr-based paints may <br /> go into a sanitan sewer, but wastes from oil-based paints,cicaning solvents, thinners, and mincral spirits must bc <br /> disposed of through a licensed waste managcment firm �r trentment, storage and disposal company. Disposal of <br /> concrcte products,additives, and curing compounds depends on the product. Infortnation is a�•ailable from thc <br /> local health depattment or the Ha�ardous Substance Infortnation Hotlinc(1-800-633-7585). <br /> Thc following arc guidelincs for managing haurdous producu: <br /> - Buy and use only what is nceded. Storc,rc-use,give awa}•, recycle, or disposc of lefrovcrs safely. <br /> - Read and follo�•�directions on the label. Ha�ardous products may be labeled as an}�one or morc of the <br /> follcwing: <br /> Danger Poisonous Volatile Combustiblc <br /> Caustic Explosivc Warning Corrosive <br /> Flnmmablc Caution <br /> - Keep products in their original containers whenever possible. ]f the product must be transferred to <br /> smaller containers, use the proper size funnel and avmd spills. Label all containers. <br /> - Prevent labels from falling off duc to�ccathering by covering thc label with transparent tape. To re-label, <br /> use a mctal tag attached to the container or use a stencil and spra��paint. <br /> 4-'-3 <br />