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• METHODS <br />Quantitative Sampling -General: <br />Sampling was performed in a manner similar to that outlined in DMG's <br />Guidelines for CcLm_pliance with Land Use and Vegetation Reyuirements of the <br />Colorado Mined Land Reclamation Board for Coal Mining October. 1988. <br />Consideration was given to DMG's new Guideline Regardine Selected Coal Mine <br />Bond Release Issues. However, where these two documents differed, the former <br />document was given priority as suggested by Division personnel. Such was the case <br />with the decision regarding sample size, as discussed below. <br />• Minimum transect numbers per sample unit were based on the recommendations <br />on page 15 of the Division's Vegetation Guidelines - ]0 samples for reference areas <br />and 15 for baseline vegetation communities. Usually, the minimum sample sizes were <br />not a statistically adequate sample. A maximum of 50 samples was ageed upon for <br />quantifying cover and production if an adequate sample could not be attained. <br />Sample locations were selected randomly from within the baseline and reference <br />areas. Sample locations were drawn from maps using a regularly spaced grid <br />(depending on the size of the parcel, 25 x 25 ft, 50 x 50 ft or 100 x 100 ft) and were <br />located in the field through the use of a compass and pacing. Approximate sample <br />locations are marked on the enclosed map. Although the sampling took place over a <br />relatively wide period (early July to middle August), sampling of individual parameters <br />• for baseline and their corresponding reference area was carried out in succession. <br />2 <br />