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Hafner adequacy formula shown on page 20, which incorporates both alpha and beta error probability <br />factors. If the sample mean is greater than or equal to the standard, or when sampling reference areas, <br />the Snedecor-Cochran adequacy formula shown on page 21 of the Division's April 18, 1995 bond <br />release guideline, and equation 2 on page 3 of Basin Resources May 4, 2005, Vegetation Sampling <br />Plan. <br />• Production sampling will utilize the 25 M transects randomly located during cover sampling. Six 0.1 <br />squaze meter quadrats will be clipped along one side of the cover transect line at meters 2,5,9,12 and 14. <br />These six quadrats will be compiled for one value for the total of 0.6 squaze meter area. The operator <br />may not consider each 0.1 square meter quadrat as independent data. <br />4. Once again the operator indicated adequacy will be calculated after ten production "transects" have <br />been collected. Again the Division directs the operator to the April 1995 Bond Release guideline, <br />page 21, with the recommendation of a minimum of I S sample observations collected. So a minimum <br />of 15 compiled data values for herbaceous productivity is advised. Also, the operator is advised to <br />assure that the appropriate sample adequacy formula is applied to the data depending on the sample <br />mean. <br />5. The 2005 Sample Plan Transect Locations Reclamation Areas Map included with the sampling plan <br />shows reclaimed areas that no sample transects fell within. Please have Basin Resources show that <br />these azeas were included in the random sample grid and had an equal chance of transects falling with <br />each area. Since no transects fell within some of the reclaimed areas, on the ground observations need <br />to be made at the time of the sampling event to evaluate the vegetation similarity or difference from <br />the rest of the reclaimed azeas included in the sampling area. Should these areas appear significantly <br />different from the rest of the reclaimed areas being sampled, data should be collected from these azeas <br />as well. <br />• Species diversity standazd found on page 2.05-20 calls for a minimum of two cool season grasses, two <br />warm season grasses and one forb. All the species that count towards the diversity standard will be <br />perennial non-noxious species. Each species counting toward the diversity standazd will comprise at least <br />5% relative cover but no greater than 60% relative cover. The operator will utilize data collected on the <br />cover transects to determine species diversity. <br />Jery Koblitz of Greystone Environmental Consultants called me the morning of June 14, 2005. These <br />concems were discussed with him. He assured me that the sampling crew would be directed to use the <br />appropriate statistical formulas and collect a minimum of 15 sample observations. He confirmed that all <br />of the reclaimed areas were included in the grid when determining the random transect locations. He <br />confirmed that visual observations of all the reclaimed areas would be made during the sampling event, <br />and agreed that if areas where transects did not fall were visually significantly different from the sampled <br />azeas that the sampling crew would randomly place a transect in those areas. The Division's concems <br />were satisfactorily answered by Mr. Koblitz. <br />C:/jhb/Team/GoldenEagle/2005 Vegetation Sampling Plan <br />