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~~ <br />1.0 STATEMENT OF WORK <br />During the 1982 growing season a baseline vegetation survey was conducted <br />for the Fruita Project. The study was closely coordinated with the Colorado <br />Division of Mined Land Reclamation (CMLR). Five vegetation types were iden- <br />tified and mapped, and each type was quantitatively sampled for cover, production, <br />and woody plant density. For each vegetation type, a reference area was estab- <br />lished and likewise sampled to CMLR standards for cover, production, and woody <br />plant density. <br />Dorchester Coal Company now plans to expand the scope of the 1982 study to cover <br />separate permit areas for independent mines on each of the three leases. Regional <br />vegetation mappings prepared for the 1982 study indicate that the additional study <br />area for the east lease has the same five vegetation types as were sampled in the <br />1982 study. The north lease has seven or perhaps eight vegetation types. In <br />addition to the same five identified in the 1982 study are Greasewood/Sagebrush <br />Porcelainite (Scoria or Clinker) Shrubland, and perhaps Juniper/Mountain Shrub. <br />On ~~onday 25 July 1983, Mr. Jim Ericson of Dorchester Coal Company and Mr. David <br />Johnson of Western Resource Development Corporation (acting as vegetation con- <br />sultant to Dorchester) met with Mr. Mike Savage of CMLR to develop a vegetation <br />sampling program for the two new lease areas. Details of the program agreed upon <br />are outlined below: <br />(1) The reference areas established in the 1982 study can be used to set <br />reclamation success standards for corresponding vegetation types on <br />the north and east leases once similarity has been demonstrated. <br />Similarity can be established by taking five to ten samples of cover, <br />production, and woody plant density for each vegetation type studied <br />in 1982 and comparing the results to five samples from the north lease. <br />Likewise, comparison can be made between the 1982 study area and the <br />eastern lease area. Cover and production will be compared using a <br />t-test and a 95% confidence interval. <br />Quantitative sample techniques will be the same as those approved and <br />employed for the 1982 vegetation study. <br />(2) For the two or perhaps three new vegetation types present on the <br />north lease, reference areas will be established. The affected area <br />of each of these vegetation types will be sampled for cover, production, <br />and woody plant density using the same methods as for the 1982 study. <br />These data will be used to locate reference areas for each vegetation <br />type. Similarly, the reference areas will be sampled and statistical <br />comparability determined. <br />(3) It also was determined at the meeting on 25 July 1983 that it will be <br />necessary to move the Galleta/Cheatgrass and perhaps the Shadscale <br />