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would be expected unless the conductivity of the irrigation water was to exceed 1 <br />mmho/cm. No significant decreases in productivity would occur unless root zone soil <br />water salinity was to exceed 1.5 mmho/cm. <br />Given the limited effect of Seneca II Mine discharge on Fish Creek surface water <br />quality, it is deduced that alluvial ground water quality should not be significantly <br />impaired. Recharge of the Fish Creek alluvium from the Cow Camp and Bond Creek <br />tributaries would be expected to be minimal compared to upstream contributions. <br />Sub-irrigation would be expected to be less affected by mine discharge than irrigation <br />using surface waters. A conservative estimate of the expected effect of mining <br />indicates that no material damage would result. <br />30