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. Irrigation. <br />. Reapplication of mulch. <br />. Repair of failed slope surfaces. <br />This technique works with standard hydromulch (1,500 pounds per acre minimum) <br />and BFM/MBFMs (3,000 pounds per acre minimum). <br />. Seed may be installed by hand if. <br />. Temporary and covered by straw, mulch, or topsoil. <br />. Permanent in small areas (usually less than 1 acre) and covered with mulch, <br />topsoil, or erosion blankets. <br />. The seed mixes listed in the tables below include recommended mixes for <br />both temporary and permanent seeding. <br />. Apply these mixes, with the exception of the wetland mix, at a rate of 120 <br />pounds per acre. This rate can be reduced if soil amendments or slow - <br />release fertilizers are used. <br />. Consult the local suppliers or the local conservation district for their recom- <br />mendations because the appropriate mix depends on a variety of factors, <br />including location, exposure, soil type, slope, and expected foot traffic. Altern- <br />ative seed mixes approved by the local authority may be used. <br />. Other mixes may be appropriate, depending on the soil type and hydrology of <br />the area. <br />. Table II-4.1.2 Temporary Erosion Control Seed Mix (p.280) lists the standard mix <br />for areas requiring a temporary vegetative cover. <br />Table 11-4.1.2 Temporary Erosion Control Seed Mix <br />% Weight <br />% Purity <br />% Germination <br />Chewings or annual bluegrass <br />40 <br />98 <br />90 <br />Festuca rubra var. commutate or Poa anna <br />Perennial rye <br />50 <br />98 <br />90 <br />Lolium perenne <br />Redtop or colonial bentgrass <br />5 <br />92 <br />85 <br />Agrostis albs or Agrostis tenuis <br />White dutch clover <br />5 <br />98 <br />90 <br />Trifolium repens <br />. Table II4.1.3 Landscaping Seed Mix (p.281) lists a recommended mix for land- <br />scaping seed. <br />2014 Stormwater Management Manual for Westem Washington <br />Volume 11 - Chapter 4 - Page 280 <br />