Laserfiche WebLink
iiiiiiiiiii iii <br />STATE OF COLORADO <br />MINED LAND RECLAMATION DIVISION <br />Department of Natural Resources <br />1313 Sherman St.. Room 275 <br />Derner. CO 60203 <br />303 666-3567 <br />FA%:303 6326106 <br />May 5, 1990 <br />Mr. Vern Pfannenstiel <br />Peabody Coal Company <br />1300 South Yale <br />Flagstaff, Arizona 86001 <br />pF ~OV~ <br />~~~ ~ <br />=~^~R <br />~,f,. <br />re ]6 <br />Rfq- WRore~r. <br />~l~/.c ~ V <br />Frea R. Barra <br />DiVLLO'1 DirN9or <br />RE: Baseline Vegetation Sampling on Permit Expansion Areas, Seneca II-W Mine, <br />C-62-057. Also, Baseline Vegetation Sampling on the Yoast Area. <br />Dear Mr. Pfannenstiel: <br />This letter will serve as a summary and MLRD understanding of our meeting of <br />April 14, 1990 and subsequent telephone conversations between us concerning <br />baseline vegetation studies on the Seneca II-W permit expansion areas and the <br />Yoast property. <br />We understand that Peabody will sample any vegetation communities that are <br />going to be disturbed. Generally, vegetation sampling will be done according <br />to the MLRD guiaelines. That is, cover, production and plant density data <br />will be obtained. <br />In vegetation communities that will not be disturbed, only qualitative .. <br />descriptions will be done and a search for threatened and endangered species. <br />The following requirements for vegetation sampling will also be done: <br />1. Any vegetation community that will be disturbed will be sampled to <br />adequacy or 50 samples maximum if the spatial area of the community <br />is greater than 10 acres. The minimum number of cover transects, <br />as noted in the MLRD guidelines, will apply to these areas. <br />2. On vegetative community areas that are less than 5 acres, the <br />minimum number of cover transects wiil not apply. These areas will <br />be sampled to adequacy. However, no more than seven to ten percent <br />of any vegetation community should be sampled destructively (for <br />production) to avoid change of the community due to sampling. <br />3. Sample adequacy for production must be determineD on dry weights. <br />The possibility of using a microwave oven to field dry the samples <br />was discussed and this would be acceptable to the Division. <br />4. A comparison of the five newly sampled area's vegetation types with <br />the same types within the presently approved permit area must be <br />