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• <br />Use the following minimum PLS (Pure Live Seed) tolerances <br /> <br />81-100 -7 <br />61-80 -6 <br />41-60 -5 <br />21-40 -4 <br />0-20 -3 <br />• <br />• <br />b. All seed must comply with BLM and Colorado weed seed guidelines. There should be <br />no prohibited species seed, and no more than allowable levels of restricted species seed. <br />In addition, there should be no more that 0.5% total weed seed, less than 2% other seed, <br />and no trash larger than '/4" in length. Seed shall not be stored in burlap bags. <br />c. The UFO places additional local restrictions on seed to minimize cheatgrass spread. If <br />seed tests show any Bromus tectorum or Bromus japonicus, the BLM should be consulted <br />with for approval. No mix placed on BLM shall contain more than 150 Bromus tectorum <br />and/or Bromus japonicus seeds per pound. <br />d. BLM requires additional seed tests on seeding projects that are greater than 20 acres <br />and/or require over 200 lbs of seed. For these seeding projects, the project proponent <br />should have the seed supply company store the purchased seed prior to mixing, and pull <br />samples to be sent to a certified laboratory, preferably Colorado State Laboratory at the <br />following address. Seed test results must comply with the criteria listed above before <br />seed is mixed, shipped and applied to the project area: <br />e. BLM will need copies of seed tags and test results for all seed applied regardless of <br />project size. <br />Wyoming State Seed Lab <br />University of Wyoming <br />749 Road 9 <br />Powell, WY 82435 <br />f. Only State-Certified weed free mulch shall be used. <br />DOI-BLM-CO-S050-2010- 0017 EA <br />Page A-6 of 10 pages <br />May 2010