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• <br />ExxonMobil Global Services <br />Colony Shale Oil Project <br />ESR Reclamation Studies <br />Weighing Lysimeter Performance 1990-2003 <br />Project No. 353 <br />Page 10 <br />radiation, thereby allowing it to be adjusted for the various directions the piles would face. Because of <br />this ability to transport the results to differing slopes at differing aspects, and its inherent simplicity, <br />this model was selected as the base case evapo-transpiration model in the ESR Plots for use in <br />evaluating the ability of soil covers to consume incipient moisture. <br />Wymore's work included no field plots or field measurements, but instead relied on Jensen <br /> <br />and Haise' original 1963 model, compilations of local meteorological conditions (precipitation, solaz <br />radiatrion, temperature lapse rate with increasing altitude, etc), and other studies relating plant activity <br />to water consumption in the region. There are however two locations in the thesis where Dr, Wymore <br />raises the issue of deep percolation, which is "lost water" with respect to his purposes. He states <br />(p. 19) the following, in context of native vegetation plant communities' demand for water: <br />"These plant associations consistently have water use (evapotranspiration) demands that <br />exceed normal precipitation during the growing season, which effectively prevents deep percolation <br />losses during most of the year." <br />Later, in context of the water balance tabulation and illustrative diagram (p. 65), Dr Wymore <br />states the following: <br />"The rapidly rising Et rates in the spring normally result in water use rates that excced <br />precipitation by May for most of the spent shale disposal areas being considered." <br />As will be discussed later in Section 4, Dr. Wymore's inferences are supported by the <br />observed results of the ESR weighing lysimeter. <br />Finally, there were other revegetation studies conducted during the 1970's by TOSCO and <br /> <br />ARCO. These included revegetation demonstration plots using TOSCO II spent shale produced at the <br />Colony site semi-commercial scale (1,000 tons/day) plant at the Colony site. These studies were <br />LAC'HEL FELICE & Associates <br />