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� <br /> � <br /> • :a There weete or Debria Preeent? <br /> • Ie The Debrie Mixed with Soi17 <br /> I • Is The Debris Organic7 <br /> • Ie There Vi�ual or Olfactory Evidence of Contamirution7 <br /> • Ie The Soil Oeotechnicelly Suitable ae Backfill? <br /> IThree broad de�ignations �hall be used for the handling oi matezials <br /> excevated foz the Everett Station improvements: (1.) debri�• (].) soil <br /> I to be used ae beckfill; or (3. ) eoile for removal from the � te Eor off- <br /> eite diaposal through treatment and/or landfilling or di�po�al of non- <br /> regulated material . S�ch of theee are diecuseed further below, and <br /> refined into more epecific sub-claesee for payment. Note that phyeical <br /> Iand chemical ecreening of maLerials will be eeparate pay it�nu. <br /> For the excavation on latge structurea 0uch as the building and the <br /> detention vavlt, Che Contractor shall excavate and •tockDile and teet <br /> I the matetial above the clay/eilt layez. The Contraetor �hall then <br /> sample the bottom of Che excavation for constituent�. If the ma[erial <br /> teete below MTCA Method A fResidentiall , then the zemaiaing m�terial may <br /> I be excavated and removed from the eite ae non-regulated material and <br /> paid per the item ^Treneport end Diepoeal of Non-Re4u1�[ed Material" <br /> 1. a�brs. . <br /> I Cla�■ 1 - Ia�tt Dl�Do��l <br /> Debrie thec is comprioed prim�rily of non-organic material ■hall <br /> be diepoeed of in thi• category. <br /> I Cla�� 4 - Moa-In�rt Di�po��l I <br /> Debri■ that ie comprieed primarily of o,raanic material ohall be <br /> diepo�ed of in thie category. <br /> I2. D�ek!!11 <br /> Cla�� 1 - Tr�ncb lackfill <br /> I Soile Mithout debri■ or visual or olfac[ory evidence of <br /> contamination, end ehat are geotechnically �uitable, ehall be ueed <br /> •e trench backfill vithout labozatory teeting. Dur!ng the Work <br /> I the Contractor may elect to leeve this material in close proximity <br /> to the trench or ■tockDile it el�ewhere [o accommodace operetlonr. <br /> No additional payment will be made for etockpiling and hauling <br /> ehould the Contractor wiah to etore this me[erial el�erhere prior <br /> I to its ute ae backfill. In all inetances this material �hall be <br /> protected from the weather and iaolated from all other etockpileo. <br /> Should thi• material become contaminated through site operatione, <br /> I all coete for the �ub�equent evaluation and diepoeal ehall be <br /> borne by the Contzactor. <br /> Cla�• 4 - Tr�nch D�ekfill ritp 8tockpilinq <br /> I Soile without debris with viraal or_olfactory evidence of <br /> contamination, and that are geotechnically auitable eh�ll be <br /> etockpiled and teeted. Material with constituentt below MTCA <br /> .. Method B cleanup levele ehall be ueed for trench backEill. <br /> Ma[erial with constituente above MTCA Mechod B cleanup levele <br /> ehell be menaged as de�cribed herein. <br /> Division 4 Paqe 1� <br /> I. Everett Station o5/17/00 I <br /> �� H:\Jobe\97093\TRANS\fiNG\SPECS\100�cd\Stteet_�i[e\98SPEC2RI.do <br /> �� 1 <til <br /> �y <br />