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<br />~~. <br />Section 779.14 (b) Continued. <br />Selenium, Se ~ <br />Va ues fo selenium range rc <br />va u of 0.057 ppm. se co~ <br />2.00 ppm set f h in both <br />Con equently, o problems are <br />wat r qual y with respect to <br />.00 to 0.24 ~ <br />[rations are z <br />~. Montana a <br />icipat with <br />Rule 2.04.6 <br />Revised 11/6/80 <br />a <br />low th evel <br />R idelines. <br />ity or <br />Atse is values in th samples re very low, angi from 0.00 to <br />0.81 ppm and h a mean value of 0.151 ppm, o limitations are <br />estab ishe y either the Monta a or Wyoming idelines, but Gough <br />and ckleite (1976) report th t with con entr lions of arsenic up <br />40 ppm "damage to plants 's not peeled." No <br />7 expected with toxicity or ground water quality with respect to <br />arsenic. <br />Mercury, Hg <br />Mercury values are low, range from 0.02 to 0.697 ppm, and have a <br />mean value of 0.092 ppm. All but one mercury value are well below <br />the limit of 0.500 ppm set forth in the Montana Guidelines. No <br />problems with toxicity or ground water quality will be encountered <br />with respect to mercury. <br /> <br />Vanadium, V <br />Values for total vanadium range from 42.5 to 390.0 ppm and have a <br />mean value of 174.34 ppm. No limits have been established in any <br />guidelines for mining for vanadium, although Bowen (1966) states <br />that the average value for shales is 130 ppm. Gough and Shacklette <br />(1976) quote that "no reports indicating either deficiency or <br />toxicity of vanadium to plants under field conditions" has been <br />found. Based on the facts presented in this paragraph, vanadium is <br />not expected to be a problem with respect to ground water quality <br />or potential topsoil suitability. <br />779-26 a <br />