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<br />composition, purity and germination testing. Resulu of this QA/QC testing will be made <br />available to the regulatory authority or other interested parties upon request <br />' Seed used in permanent revegetation operations will be adapted improved varieties and <br />cultivars of native grasses, forts and shrubs. Based upon availability, seed will be selected for <br />use in the following order of preference: 1) certified named varieties, 2) named varieties, and <br />3) common seed. Wham common seed is used, sources that are from the same geceral locality <br />will be used whenever possible. The same general locality is defined as the area within a250- <br />mile radios of the project site. Seed from more distant sources may be used if necessary, with <br />' care being taken to match climatic zones to the extent necessary and possible. <br />Seedbeds will be prepared to facilitate seedling germination and establishment When matve <br />plant species are used predomtinately in revegetation efforts, the requiremenu for seedbed <br />preparation will be geared to their gemrination and establishment Seedbeds will be left in a <br />rough surface condition whenever possible. Arras will be seeded as soon as possible after <br />' completiom of soil reconstruction. If the soil surface becomes encrusted or excessively sealed <br />prior to seeding operations, appropriate agricultural practices will be used to alleviate crusting. <br />Physical soil manipulation and revegetation operations (particularly those with linear physical <br />characteristics) will be performed on the contour to the fullest extent possible to minirtize <br />' potential surface erosion. When contour furrowing is utilized for surface roughening, it wiR be <br />performed immediately prior to seed application. Contour furrows will be placed as previously <br />described in Section 3.0. <br />' Seed mixtures will be applied at the approximate mte indicated in their respective tables. <br />Application rates may be varied at American Soda's discretion as the germination, <br />establishment and growth of previous seedings are observed and evaluated. When the bulk <br />' seeding rate is small (i.e., less than l0 pounds/acre), an extender may be added to aid in <br />distribution and coverage. A commonly used extender is cracked com. When extenders are <br />used, they will be thoroughly mixed with the seed prior to commencement of seeding <br />' operations. <br />Seed mixtures may be divided into submixtures based on their physical characteristics. <br />' Commonly, up to three submiztures may be used. The purpose of the submixtures is to group <br />the seed types to enhance the seeding equipment's ability to distribute them evenly and to a <br />lesser extent to group species with similar germination requiremenu. Submixtures normally <br />include: 1) medium to large, smooth seeds, 2) seeds with specialized adaptations that represent <br />' mechanical inhibitors to standard seeding processes, and 3) extremely small seed. Tbe "normal <br />seed" in the first group usually does not require special handling and may be planted using <br />standard drill or broadcasting equipment The second group represenu seed that has a variety <br />' of appendages or specialized coatings that inten`ere with seed flow through a standard drill or <br />broadcast seeder. This type of seed is normally applied using equipment that is fitted with <br />specialized picker wheels or other adaptations desigred to ensure the smooth, even flow of <br />seed through the seeder. Because extremely small seed will differentially settle as it is agitated <br />' by machime movement during the seeding operation, it may be desirable to separate it from <br />lazger seeds and apply it through a separate seed box or separate seeding operation. <br />' Seed mixtures will be distributed as evenly as possible over the area being revegetated Seed <br />drills or broadcasters will be calibrated prior to the initiation of seeding operations. Seeding <br />operations will be performed during tire normal seeding period for the types of species being <br />' planted. When cool season species comprise the majority of the seed mixture, planting will <br />normally be performed in the fall after September 15th or m the spring prior to May 1st. When <br />warm season species comprise the majority of the seed mixture, planting operations may be <br />' American Soda, LLP. 5-() <br /> Shc Coo~ervauoo, Fiosioo aad Sedimeol <br /> Coovol, rcclamaaoo aad Revegeuuoo Plan <br />' Ocbber 18, 1998 <br />