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BMP C150: Materials On Hand <br />Purposc Quantitics af crosion prevcntion and scdiment control matcriais can bc <br />kept on thc project sitc at all timcs to bc uscd for cmcrga�. y situations <br />such iu unexpected heavy summer rains. Having thesc matcrials on-site <br />reduces the timc ncedcd to implement f3D1Ps when inspections indicatc <br />that existing f3MPs are not meeting thc Construction SWPPP <br />requircments. In addition, contractors can szve money by buying sonte <br />matcrials in bulk and storing thcm at thcir officc or }•ard. <br />Conditinns njUsc • Conswction projccts of any sizc or typc can bencfit from having <br />matcrials on hand. A small commcrcial devclopmcnt projcct conld <br />ha�•c a roll of plastic and somc gr,n•cl availablc for immcdiatc <br />protection of bare soil and tcmporary� bcmi constniction. A largc <br />carth��vrk projcct, such as highway constn�ction, might ha��c sc�•cral <br />tons of straw, scvcral rolls of plastic, flc�iblc pipc, sandbags, <br />gcotcxtile fabric and stccl "T" posis. <br />n��.�txn �nd <br />/nsla!latinn <br />Spccifica�rnns <br />�tluinfenancc <br />SmndurJs <br />. Matcrials arc stockpilcd and readily :rvailablc hcforc any sitc cicaring, <br />grubbing, or r.�rth�eark begins. A large contractor or developer could <br />kcep a stockpile of matcrials that are available to be used on several <br />projccts. <br />. If storagc spacc at thc projcct sitc is at a premium, thc contractor could <br />maintain Ihe materials at their ofTice or yard. The office or yard rnust <br />be Icss than an hour from the projcct site. <br />Dcpcnding on projcct type, siu. complcsity. and Icngth, matcnals and <br />quan�itics will vary. A gaod minimum th�t u�ill covcr nuntcrous siwatiuns <br />includcs: <br />. nn �»�c«�,is ,���r, �i,� ����ru�,�, ore,� y��:,�-y ,�alls, s�ccl "T" posts, <br />and grnvel should bc kcpt covcrcd and out of both sun and nin. <br />. Re-stock matcrials uscd as nceded. <br />4•42 Volume ll — Consfruclion Sfortnwafer Pollution Prevention February 2005 <br />