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<br /> <br />?'I~ <br />\}. <br />!Ii <br />~. <br /> <br />.~, <br /> <br />)::", <br /> <br />.i.} <br />42'61 <br /> <br />" <br /> <br />',i. <br /> <br />not used in the work covered by these.specifications <br />.shall be disposed of as directed. <br /> <br />All of the contractor's operations in and around <br />aggregate deposits shall be in accordance with <br />Paragraphs 48 to 52, on environmental quality <br />protection. <br /> <br />c. Processing raw materials.-Processing of the raw <br />materials shaH include screening, and washing as <br />necessary. to produce' sand and coarse aggregate <br />conforming to the requirements of Paragraphs 134 <br />and 135. Processing of aggregates produced from <br />any source owned by the Government and <br />controlled by the Bureau of Reclamation shall be <br />done at an approved site. Water used for washing <br />aggregales shall be free from objectionable <br />Quantities of silt, or9anic matter, alkali, salts, and <br />other impurities. To utilize the greatest practicable <br />yield of suitable malerials in the portion of the <br /> <br /> <br />SPECIFICATIONS N6S~~, <br />ISUPPLEMENTALNOTICE . <br />". <br /> <br />. '.')" <:,. <br />''{~ <br />:~:i~~.. <br />-.!l:f;~r, <br />:/ot':,;,,'; <br />:,:':;';:.t:,:.. <br />....l...... <br />';~~:I' <br />"~"r-- <br />-i. ; ':rl~ . <br />.'1':.,;.... <br />~~..... .~: <br />.T' <br />'>:'.' <br />..} <br />f.. <br />~; <br /> <br />': <br /> <br />.' <br />'I.. <br />)I.. <br /> <br />~.,. <br />~:. <br />'~~ " <br /> <br />.~ <br /> <br />"',. <br />::;. <br /> <br />","., <br /> <br />I:. <br /> <br />l'OOa <br /> <br />.~, <br />