Laserfiche WebLink
• Section 816.114 Continued. <br />(b) When required by the regulatory authority, mulches shall be <br />mechanically or chemically anchored to the soil surface to assure <br />effective protection of the soil and vegetation. <br />Where mulching is necessary as a supplemental stabilization measure, <br />Kerr will establish live mulch cover consisting of cereal grains or <br />annual grasses. As live mulch, the cover vegetation will be anchored <br />in the soil by natural root systems. <br />(c) Annual grasses and grains may be used alone, as in situ mulch, when <br />the regulatory authority determines that they will provide adequate soil <br />erosion control and will later be replaced by perennial species approved <br />for the posfmining land use. <br />• As briefly described under Subsection (a) above, Kerr Coal proposes <br />to use annual grasses or cereal grains as supplemental mulch to <br />control erosion on "high hazard" areas. Only in rare instances where <br />affected lands cannot be effectively and successfully broadcast <br />seeded, will straw or hay be utilized as a mulch. <br />The decision of Kerr Coal to utilize cereal grains and annual grasses <br />as mulch stems from and is consistent with research conducted on <br />previously mined lands in Colorado, Montana and Wyoming. This <br />research has established that, in order to replenish the NO-3N and <br />organic matter levels of reapplied topsoil such topsoil may be <br />supplemented with organic matter. This organic matter can be <br />supplied through straw and hay mulches or through planting of cereal <br />grains or annual grasses. As documented by <br /> <br />816.152R <br />Revised - August, 1990 <br />