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DocuSign Envelope ID: E39A7F34-1956-4F98-91AB-121A6B293FOE Attachment E - NCDEQ Permanent Seeding Specs <br /> Practice Standards and Specifications <br /> 6.11 <br /> PS <br /> Definition ontrol I i ng runoff and erosion on disturbed areas by establishing perennial <br /> vegetative cover with seed. <br /> To reduce erosion and decrease sediment yield from disturbed areas, to <br /> permanentl y stabi I i e such areas i n a manner that i s economi cal,adapts to si to <br /> conditions,and al I ows sel ecti on of the most appropriate plant mated as. <br /> i ne graded areas on whi ch permanent, I ong I i ved vegetati ve cover i s the <br /> most practical or most effective method of stabi I i i ng the soi I. Permanent <br /> seedi ng may a1 so be used on rough graded areas that wi I I not be brought to <br /> final grade for a year or more. <br /> reas to be stabi I i ed with permanent vegetation must be seeded or pl anted <br /> within 15 working days or 90 calendar days after final grade is reached,unless <br /> temporary stabi I i ati on i s appl i ed. <br /> uri ng the ni ti al phaseof a1 I I and di sturbi ng pro ects,the protecti veI aver,ei ther <br /> natural or man made, is removed from the earth s surface. s the protective <br /> layer is removed, the resulting bare areas are exposed to the natural forces <br /> of red nfal 1, f ree i ng, thawi ng, and wi nd. The resin t i s soi I erosi on that I eads <br /> to sedi ment pot I uti on of orth arol i na streams, ri vers, I a es, and estuari es. <br /> Thisdesignmanual presents many al ternati ve strategi es for preventi ng erosi on <br /> and reducing sediment loss during the construction process. stabl i shment <br /> of protective vegetative cover during the construction pro ect, however, is <br /> the crucial step in achieving soil stabi I i ati on, control I i ng soil erosion, and <br /> preventing sedimentation of waterways.Without a sufficient amount of root mat <br /> and I eaf cover to protect and hol d the soi I i n pl ace,I arge vol umes of soi I wi I I be <br /> I ost and waterwayswi I I bedegraded I ong after pro ectsareconsi dered compl ete. <br /> ecti ons of this practice standard address many of these various situations <br /> and set forth selection criteria for the appropriate cover based on purpose and <br /> adaptabi I i ty. ome sediment and erosion control practices recommended in <br /> earlier editions of the manual may no longer be applicable. For example,many <br /> popular and commonly used seed and plant varieties have been identified as <br /> invasive. Invasive plants are defined as species that aggressively compete <br /> with, and displace, locally adapted native plant communities. n select cases <br /> where no practical alternative i s avai I abl e,these plants maybe considered on <br /> a I i mi ted basi s f or soi I stabi I i ati on,understandi ng that the goal i s to el i mi nate <br /> the use of all invasive plants in favor of non-invasive native and/or introduced <br /> speci esthat wi I 1 provide an equal I y ac ceptabl a vegetati ve cover. here there i s <br /> no al ternati ve to the use of i nvasi ve species,measures need to be i ncorporated <br /> in the i nstal I ati on and maintenance of these plants to limit their impacts. <br /> Rev. /0 6.11.1 <br />